KR20230156343A - Remote unit with configurable operating modes - Google Patents

Abstract

A relay supporting multiple relay modes is provided. The relay transmits capability information to the base station, which indicates support for the first relay mode and the second relay mode. The relay determines its operating mode based on itself or an indication of the operating mode from the base station, and the operating mode includes a first relay mode or a second relay mode. The relay communicates with at least one of a base station or another wireless device based at least in part on the determined mode of operation.

Description

Remote unit with configurable operating modes

Cross-reference to related application(s)

This application claims priority to U.S. Patent No. 17/204,806, filed March 17, 2021, entitled “REMOTE UNIT WITH A CONFIGURABLE MODE OF OPERATION,” which is expressly incorporated herein by reference in its entirety. do.

background technology

Technology field

This disclosure relates generally to communication systems, and more specifically to wireless communication including relays or repeaters.

introduction

Wireless communication systems are widely deployed to provide a variety of telecommunication services such as telephony, video, data, messaging, and broadcast. Conventional wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single access (SC-FDMA) systems. -Includes a carrier frequency division multiple access) system, and a time division synchronous code division multiple access (TD-SCDMA) system.

These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that allows different wireless devices to communicate on a local, national, regional and even international level. An exemplary telecommunications standard is 5G New Radio (NR). 5G NR is a continuous mobile technology announced by the Third Generation Partnership Project (3GPP) to meet new requirements related to latency, reliability, security, and scalability (e.g. with the Internet of Things (IoT)). It is part of the broadband evolution. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. Further improvements in 5G NR technology are needed. These improvements may also be applicable to other multi-access technologies and telecommunication standards that employ these technologies.

outline

The following presents a brief overview of one or more aspects to provide a basic understanding of such aspects. This summary is not a comprehensive overview of all contemplated aspects, and is neither intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

In aspects of the present disclosure, methods, computer-readable media, and devices are provided. The device may also be a remote unit. The removal unit receives a first signal from the first wireless device; determine an operating mode for processing the first signal; processing the first signal based on the mode of operation to generate a second signal; A second signal may be transmitted to a second wireless device.

In some aspects, determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode.

In some aspects, determining the mode of operation includes determining a functional partition for processing the first signal.

In some aspects, determining the mode of operation includes determining a functional division for generating the second signal.

In some aspects, determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

In some aspects, the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

In some aspects, the mode of operation is determined based on quality of service requirements associated with the first or second signal.

In some aspects, the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device.

In some aspects, the mode of operation is determined based on whether the first signal is a data channel or a control channel.

In some aspects, a remote unit may receive a mode configuration from a control entity, where a mode of operation is determined based on the mode configuration.

In some aspects, the first signal includes mode commands and the mode of operation is determined based on the mode commands.

In another aspect of the disclosure, methods, computer-readable media, and devices are provided. The device may be a wireless device. The wireless device determines to transmit the first transmission to the remote unit for the second wireless device; generating a first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit; The first transmission may be sent to a remote unit.

In some aspects, the wireless device is a base station, the first transmission is a downlink channel, and the second transmission is a downlink channel.

In some aspects, the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport block for generating the second transmission.

In another aspect of the disclosure, methods, computer-readable media, and devices are provided. The device may be a wireless device. the wireless device receives a second transmission from the remote unit, the second transmission comprising information regarding the first transmission transmitted by the second wireless device to the remote unit; The first transmission may be determined based on information regarding the second transmission and the first transmission.

In some aspects, the wireless device is a base station, the first transmission is an uplink channel, and the second transmission is an uplink channel.

In some aspects, the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport block of the first transmission.

In another aspect of the disclosure, methods, computer-readable media, and devices are provided. The device may also be a base station. The base station determines a mode of operation for the remote unit, wherein the mode of operation configures the remote unit to process a first signal received from the first wireless device to generate a second signal for transmission to the second wireless device. , determine the operation mode; The operating mode can also be transmitted to a remote unit.

In some aspects, determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode.

In some aspects, determining the mode of operation includes determining a functional partition for processing the first signal.

In some aspects, determining the mode of operation includes determining a functional division for generating the second signal.

In some aspects, determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

In some aspects, the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

In some aspects, the mode of operation is determined based on quality of service requirements associated with the first or second signal.

In some aspects, the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device.

In some aspects, the mode of operation is determined based on whether the first signal is a data channel or a control channel.

To the accomplishment of the foregoing and related objectives, one or more aspects include features fully described below and particularly pointed out in the claims. The following description and accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features represent only a few of the various ways in which the principles of the various aspects may be employed, and this description is intended to encompass all such aspects and their equivalents.

1 is a diagram illustrating an example of a wireless communication system and access network.
2A, 2B, 2C, and 2D are examples of DL channels in a first 5G/NR frame, a 5G/NR subframe, a second 5G/NR frame, and UL channels in a 5G/NR frame, respectively. These are drawings that illustrate these.
3 is a diagram illustrating an example of a base station and user equipment (UE) in an access network.
Figure 4 illustrates a class B relay.
Figure 5 illustrates relay support operation in amplify-forward mode and decode-forward mode.
Figure 6 is a communication diagram illustrating communication between a base station, a relay, and a UE, including selection between multiple supported modes for the relay.
Figure 7 is a flow chart of a wireless communication method in a base station.
8 is a conceptual data flow diagram illustrating data flow between different means/components in an example device.
9 is a diagram illustrating an example hardware implementation for a device employing a processing system.
Figure 10 is a flow chart of a wireless communication method in a relay.
11 is a conceptual data flow diagram illustrating data flow between different means/components in an example device.
12 is a diagram illustrating an example hardware implementation for a device employing a processing system.
Figure 13 is a flowchart of a wireless communication method in the UE.
14 is a conceptual data flow diagram illustrating data flow between different means/components in an example device.
15 is a diagram illustrating an example hardware implementation for a device employing a processing system.
Figure 16a is a diagram illustrating a repetitive operation.
Figure 16b is a diagram illustrating relaying operation.
Figure 17 is a diagram illustrating an iterative operation with multiple functional divisions.
18 is a diagram illustrating a relaying operation with multiple functional divisions to create outgoing communications.
Figure 19 is a diagram illustrating a relaying operation with multiple functional divisions for decoding incoming communications.
Figure 20 is a communications flow diagram illustrating the operation of a remote unit with variable operating modes.
21 is a communication flow diagram illustrating a remote unit utilizing a transmitter transparent relay mode and a receiver transparent relay mode.
Figure 22 is a flow chart of a method of wireless communication in a remote unit.
Figure 23 is a flow chart of a wireless communication method in a wireless device.
Figure 24 is a flow chart of a wireless communication method in a wireless device.
Figure 25 is a flow chart of a wireless communication method in a base station.
26 is a diagram illustrating an example hardware implementation for an example device.
Figure 27 is a diagram illustrating an example hardware implementation for an example device.
Figure 28 is a diagram illustrating an example hardware implementation for an example device.
Figure 29 is a diagram illustrating an example hardware implementation for an example device.

details

The detailed description set forth below in conjunction with the accompanying drawings is intended as an illustration of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

Various aspects of telecommunication systems will now be presented in relation to various devices and methods. These devices and methods will be described in the following detailed description by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as “elements”) and illustrated in the accompanying drawings. These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented in hardware or software depends on the specific application and design constraints imposed on the overall system.

By way of example, an element, or any portion of an element, or any combination of elements may be implemented as a “processing system” that includes one or more processors. Examples of processors include microprocessors, microcontrollers, GPUs (Graphics Processing Unit), CPUs (central processing units), application processors, DSPs (digital signal processors), RISC (reduced instruction set computing) processors, and SoCs (System on Chip). , baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout the present disclosure. . One or more processors in a processing system may execute software. Software means instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. It should be broadly interpreted to mean a package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.

Accordingly, in one or more example embodiments, the described functions may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media. Storage media may be any available media that can be accessed by a computer. By way of non-limiting example, such computer-readable media include random-access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, and the like. It may include a combination of one type of computer-readable medium, or any other medium that can be used to store computer-executable code in the form of instructions or data structures that can be accessed by a computer.

1 is a diagram illustrating an example of a wireless communication system and access network 100. A wireless communications system (also referred to as a wireless wide area network (WWAN)) includes base stations 102, UEs 104, an evolved packet core (EPC) 160, and another core network 190 (e.g. , 5GC (5G Core)). Base stations 102 may include macrocells (high power cellular base station) and/or small cells (low power cellular base station). Macrocells contain base stations. Small cells include femtoCells, picoCells, and microCells.

Base stations 102 configured for 4G LTE (collectively referred to as the evolved Universal Mobile Telecommunications System (UMTS) terrestrial radio access network (E-UTRAN)) provide first backhaul links 132 (e.g., S1 interface). It can also be interfaced with EPC 160 through. Base stations 102 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) may interface with the core network 190 via secondary backhaul links 184. In addition to other functions, base stations 102 may perform one or more of the following functions: transmission of user data, wireless channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g. , handover, dual connectivity), inter-cell interference coordination, connection setup and teardown, load balancing, distribution for NAS (non-access stratum) messages, NAS node selection, synchronization, radio access network (RAN) sharing , Multimedia Broadcast Multicast Service (MBMS), subscriber and equipment tracking, RAN Information Management (RIM), paging, positioning and delivery of warning messages. Base stations 102 may communicate with each other directly or indirectly (e.g., via EPC 160 or core network 190) over third backhaul links 134 (e.g., X2 interface). Third backhaul links 134 may be wired or wireless.

Base stations 102 may communicate wirelessly with UEs 104. Each of base stations 102 may provide communications coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, small cell 102' may have a coverage area 110' that overlaps the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macrocells may be known as a heterogeneous network. The heterogeneous network may also include home evolved Node Bs (eNBs) (HeNBs) that may provide services to a limited group known as a closed subscriber group (CSG). Communication links 120 between base stations 102 and UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from the UE 104 to the base station 102, and/or Downlink (DL) (also referred to as the forward link) transmissions from 102 to UE 104 may be included. Communication links 120 may utilize multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity. Communication links may be via one or more carriers. Base stations 102 /UEs 104 may have Y MHz (e.g., 5 , 10, Spectrums up to bandwidths of 15, 20, 100, 400 MHz, etc. can also be used. Carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric for the DL and UL (eg, more or fewer carriers may be allocated for the DL than for the UL). Component carriers may include a primary component carrier and one or more secondary component carriers. A primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell).

Certain UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158 . D2D communication link 158 may use DL/UL WWAN spectrum. The D2D communication link 158 includes a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and one or more sidelink channels, such as a physical sidelink control channel (PSCCH). D2D communication may be via various wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi, LTE, or NR based on the IEEE 802.11 standard.

The wireless communication system may further include a Wi-Fi access point (AP) 150 that communicates with Wi-Fi stations (STAs) 152 via communication links 154 in the 5 GHz unlicensed frequency spectrum. there is. When communicating in an unlicensed frequency spectrum, STAs 152/AP 150 may perform a clear channel assessment (CCA) before communicating to determine whether a channel is available.

Small cells 102' may operate in licensed and/or unlicensed frequency spectrum. When operating in the unlicensed frequency spectrum, small cell 102' may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by Wi-Fi AP 150. Small cells 102' employing NR in the unlicensed frequency spectrum may boost coverage and/or increase the capacity of the access network.

Base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include and/or be referred to as an eNB, gNodeB (gNB), or other type of base station. Some base stations, such as gNB 180, may operate at millimeter wave (mmW) frequencies and/or near mmW frequencies, in the typical sub-6 GHz spectrum when communicating with UE 104. When gNB 180 operates at mmW or near mmW frequencies, gNB 180 may be referred to as a mmW base station. EHF (extremely high frequency) is the RF portion of the electromagnetic spectrum. EHF ranges from 30 GHz to 300 GHz and has a wavelength between 1 millimeter and 10 millimeters. Radio waves in that band may also be referred to as millimeter waves. Near mmW may extend to frequencies of 3 GHz with a wavelength down to 100 millimeters. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using mmW/near mmW radio frequency bands (e.g., 3 GHz - 300 GHz) have extremely high path loss and short range. The mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range. Base station 180 and UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and/or antenna arrays to facilitate beamforming.

Base station 180 may transmit beamformed signals to UE 104 in one or more transmission directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more reception directions 182''. UE 104 may also transmit beamformed signals to base station 180 in one or more transmission directions. Base station 180 may receive a beamformed signal from UE 104 in one or more receive directions. Base station 180/UE 104 may perform beam training to determine the best reception and transmission directions for each of base station 180/UE 104. The transmit and receive directions for base station 180 may or may not be the same. The transmit and receive directions for UE 104 may or may not be the same.

EPC 160 includes Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, and Multimedia Broadcast Multicast Service (MBMS) Gateway 168. , a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) gateway 172. MME 162 may communicate with Home Subscriber Server (HSS) 174. MME 162 is a control node that processes signaling between UEs 104 and EPC 160. Generally, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which is itself connected to PDN Gateway 172. PDN gateway 172 provides UE IP address allocation and other functions. PDN gateway 172 and BM-SC 170 are connected to IP service 176. IP services 176 may include the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and/or other IP services. BM-SC 170 may provide functions for MBMS user service provisioning and delivery. BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. It may also be used. MBMS gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting specific services, session management (start/stop) and eMBMS. They may be responsible for collecting relevant billing information.

Core network 190 may include access and mobility management function (AMF) 192, other AMFs 193, session management function (SMF) 194, and user plane function (UPF) 195. AMF 192 may communicate with Unified Data Management (UDM) 196. AMF 192 is a control node that processes signaling between UEs 104 and core network 190. Generally, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transmitted via UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and/or other IP services.

A base station may also include a gNB, Node B, evolved Node B (eNB), access point, base transceiver station, wireless base station, wireless transceiver, transceiver function, basic service set (BSS), extended service set (ESS), transmit/receive point ( TRP), or other suitable terms, and/or may be referred to as these. Base station 102 provides UE 104 with an access point to EPC 160 or core network 190. Examples of UEs 104 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radio, global positioning systems, multimedia devices, video devices, digital audio players (e.g. (e.g., MP3 players), cameras, gaming consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors/actuators, displays, or any other Includes similar functional devices. Some of the UEs 104 may be referred to as IoT devices (eg, parking meters, gas pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also include a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, May also be referred to as a wireless terminal, remote terminal, handset, user agent, mobile client, client, or other suitable terminology.

Referring back to FIG. 1 , in certain aspects, relay 103 may receive signals from base stations 102, 180 and relay signals to and/or receive signals from UE 104. may be received and the signal may be relayed to another UE. Base stations 102 and 180 may be configured to determine an operating mode for relay 103 and communicate using the determined operating mode (191). Relay 103 may be configured to determine an operating mode for itself and communicate using the determined operating mode (198). UE 104 may be configured to determine parameters for communicating with relay 103 based on the determined operating mode (199). The following description may focus on mmW relays, including amplify-forward and decode-forward modes, but the concepts described here may also be applicable to other similar areas, such as low-frequency repeaters.

FIG. 2A is a diagram 200 illustrating an example of a first subframe within a 5G/NR frame structure. FIG. 2B is a diagram 230 illustrating an example of a DL channel within a 5G/NR subframe. FIG. 2C is a diagram 250 illustrating an example of a second subframe within a 5G/NR frame structure. FIG. 2D is a diagram 280 illustrating an example of a DL channel within a 5G/NR subframe. The 5G/NR frame structure may be FDD, with subframes within the set of subcarriers dedicated to either DL or UL, for a specific set of subcarriers (carrier system bandwidth), or for a specific set of subcarriers (carrier system bandwidth). carrier system bandwidth) may be TDD, in which subframes within a set of subcarriers are dedicated to both DL and UL. 2A, 2C, the 5G/NR frame structure is assumed to be TDD, and subframe 4 consists of slot format 28 (mostly DL), where D is DL, U is UL, and is flexible for use between DL/UL, and subframe 3 consists of slot format 34 (mostly UL). Although subframes 3 and 4 are shown in slot formats 34 and 28, respectively, any particular subframe may be configured in any of the various available slot formats 0-61. Slot formats 0 and 1 are all DL and UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. UEs are configured (dynamically via DL Control Information (DCI), or semi-statically/statically via Radio Resource Control (RRC) signaling) with a slot format via a received Slot Format Indicator (SFI). Note that the description below also applies to the 5G/NR frame structure that is TDD.

Other wireless communication technologies may have different frame structures and/or different channels. A frame (10 ms) may be divided into 10 equally sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include mini-slots, which may contain 7, 4, or 2 symbols. Each slot may contain 7 or 14 symbols depending on the slot configuration. For slot configuration 0, each slot may contain 14 symbols, and for slot configuration 1, each slot may contain 7 symbols. The symbols on the DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols on the UL are either CP-OFDM symbols (for high throughput scenarios) or Discrete Fourier Transform (DFT) Spread OFDM (DFT-s-OFDM) symbols (also as Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols. (for power limited scenarios; limited to single stream transmission). The number of slots within a subframe is based on slot configuration and numerology. For slot configuration 0, different numerologies μ 0 to 5 allow 1, 2, 4, 8, 16 and 32 slots per subframe respectively. For slot configuration 1, different numerologies 0 to 2 allow 2, 4 and 8 slots per subframe, respectively. Therefore, for slot configuration 0 and numerology μ, there are 14 symbols/slot and 2 ^μ slots/subframe. Subcarrier spacing and symbol length/duration are functions of numerology. The subcarrier spacing may be equal to 2 ^μ * 15 kHz, where μ is numerology 0 to 5. Likewise, numerology μ=0 has a subcarrier spacing of 15 kHz, and numerology μ=5 has a subcarrier spacing of 480 kHz. Symbol length/duration is inversely proportional to subcarrier spacing. 2A-2D provide slot configuration 0 with 14 symbols per slot and numerology μ = 0 with 1 slot per subframe. The subcarrier spacing is 15 kHz and the symbol duration is approximately 66.7 μs.

Resource grids can also be used to represent frame structures. Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs)) spanning 12 consecutive subcarriers. The resource grid is divided into a number of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

As shown in Figure 2A, some of the REs carry reference (pilot) signals (RS) for the UE. RS is the Channel State Information Reference Signals (CSI-RS) and demodulation RS (DM-RS) for channel estimation in the UE (denoted as Rx for one specific configuration, where 100x is the port number, but for other DM-RS Configurations are possible). RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS).

Figure 2B illustrates an example of various DL channels within a subframe of a frame. The Physical Downlink Control Channel (PDCCH) carries the DCI in one or more control channel elements (CCEs), each CCE containing 9 RE groups (REGs), and each REG 4 in an OFDM symbol. Contains consecutive REs. The primary synchronization signal (PSS) may be within symbol 2 of certain subframes of the frame. PSS is used by UE 104 to determine subframe/symbol timing and physical layer identity. The secondary synchronization signal (SSS) may be within symbol 4 of certain subframes of the frame. SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing. Based on the physical layer identity and physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on PCI, the UE can determine the locations of the DM-RS described above. A physical broadcast channel (PBCH) carrying a master information block (MIB) may be logically grouped with a PSS and SSS to form a synchronization signal (SS)/PBCH block. The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted over the PBCH, such as system information blocks (SIBs), and paging messages.

As illustrated in FIG. 2C, some REs carry DM-RS (denoted R for one specific configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may transmit DM-RS for Physical Uplink Control Channel (PUCCH) and DM-RS for Physical Uplink Shared Channel (PUSCH). PUSCH DM-RS may be transmitted in the first one or two symbols of PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the specific PUCCH format used. Although not shown, the UE may transmit a sounding reference signal (SRS). SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

Figure 2D shows an example of various UL channels within a subframe of a frame. PUCCH may be located as indicated in one configuration. PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and HARQ ACK/NACK feedback. PUSCH carries data and may additionally be used to carry a buffer status report (BSR), power headroom report (PHR), and/or UCI.

3 is a block diagram of a base station 310 communicating with a UE 350 in an access network. In the DL, IP packets from EPC 160 may be provided to controller/processor 375. Controller/processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes the Radio Resource Control (RRC) layer, and Layer 2 includes the Service Data Adaptation Protocol (SDAP) layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Medium Access Control (MAC) layer. Includes hierarchy. Controller/processor 375 is responsible for broadcasting system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), and wireless access technology. RRC layer functionality associated with measurement configuration for (RAT) inter-mobility, and UE measurement reporting; PDCP layer functionality associated with header compression/decompression, security (encryption, decryption, integrity protection, integrity verification) and handover support functions; Transmission of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and RLC data PDUs. RLC layer functionality associated with reordering; and mapping between logical channels and transport channels, multiplexing MAC SDUs onto transport blocks (TBs), demultiplexing MAC SDUs from TBs, reporting scheduling information, error correction via HARQ, priority handling, and logical channel priority. Provides MAC layer functionality related to channel prioritization.

Transmit (TX) processor 316 and receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions. Layer 1, which includes the physical (PHY) layer, detects errors on the transport channel, forward error correction (FEC) coding/decoding of the transport channel, interleaving, rate matching, mapping onto physical channels, modulation/demodulation of physical channels, and May include MIMO antenna processing. The TX processor 316 may implement various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-QAM (M Handles mapping to signal constellation based on -quadrature amplitude modulation). The coded and modulated symbols may then be split into parallel streams. Each stream is then mapped onto an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using the inverse fast Fourier transform (IFFT). It is also possible to create a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from channel estimator 374 may be used to determine coding and modulation schemes as well as for spatial processing. The channel estimate may be derived from channel condition feedback and/or reference signals transmitted by UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier into a respective spatial stream for transmission.

At UE 350, each receiver 354RX receives a signal via its respective antenna 352. Each receiver 354RX recovers the modulated information on the RF carrier and provides the information to a receive (RX) processor 356. TX processor 368 and RX processor 356 implement layer 1 functionality associated with various signal processing functions. RX processor 356 may perform spatial processing on the information to recover any spatial streams intended for UE 350. If multiple spatial streams are scheduled for UE 350, they may be combined by RX processor 356 into a single OFDM symbol stream. RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using the Fast Fourier Transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, and the reference signal, are recovered and demodulated by determining the most likely signal constellation points transmitted by base station 310. These soft decisions may be based on channel estimates computed by channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted on the physical channel by base station 310. Data and control signals are then provided to a controller/processor 359 that implements layer 3 and layer 2 functionality.

Controller/processor 359 may be associated with memory 360, which stores program code and data. Memory 360 may also be referred to as a computer-readable medium. In the UL, controller/processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from EPC 160. Controller/processor 359 is also responsible for error detection using ACK and/or NACK protocols to support HARQ operations.

Similar to the functionality described with respect to DL transmission by base station 310, controller/processor 359 may include RRC layer functionality associated with obtaining system information (e.g., MIB, SIBs), RRC connections, and measurement reporting; PDCP layer functionality associated with header compression/decompression, and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with transmission of upper layer PDUs, error correction via ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, reporting scheduling information, error correction via HARQ, priority handling, and logical channel priority. Provides MAC layer functionality related to communication.

Channel estimates derived by channel estimator 358 from a reference signal or feedback transmitted by base station 310 may be used by TX processor 368 to select appropriate coding and modulation schemes and facilitate spatial processing. It may be possible. Spatial streams generated by TX processor 368 may be provided to a different antenna 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier into a respective spatial stream for transmission.

UL transmissions are processed at base station 310 in a manner similar to that described with respect to the receiver functionality at UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers the modulated information onto the RF carrier and provides the information to RX processor 370.

Controller/processor 375 may be associated with memory 376 that stores program codes and data. Memory 376 may be referred to as a computer-readable medium. In the UL, controller/processor 375 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from EPC 350. IP packets from controller/processor 375 may be provided to EPC 160. Controller/processor 375 is also responsible for error detection using ACK and/or NACK protocols to support HARQ operations.

At least one of TX processor 368, RX processor 356, and controller/processor 359 may be configured to perform aspects related to 198 of FIG. 1 .

At least one of TX processor 316, RX processor 370, and controller/processor 375 may be configured to perform aspects related to 198 of FIG. 1.

Mobile communication systems may include relays. A relay may also be referred to as a repeater. Relays can also help convey messages between the base station and the UE. The base station may transmit a message for the UE. The relay may receive a message intended for the UE and may retransmit the message to the UE. The UE may transmit a message intended for the base station, and the relay may receive the message intended for the base station and retransmit the message to the base station. Similarly, the relay may additionally or alternatively receive a message from a UE and retransmit the message to another UE. In some aspects, a relay may receive and retransmit messages in a high frequency spectrum (e.g., the relay may be a mmW relay).

In some aspects, a relay may receive an analog signal in a fixed beam direction, amplify the power of the received analog signal to generate a repetitive signal, and deliver the repetitive signal in the fixed beam direction (e.g., in an amplified transfer mode). It may work). These relays may be referred to herein as Class A relays. Class A relays may operate without control from a base station, as their operation may not be dynamically configurable. Class A relays may operate in full-duplex mode (e.g., may simultaneously receive a received signal and transmit a repetitive signal) because the relay does not perform additional processing of the received signal to generate the repetitive signal. there is).

In some aspects, a relay may receive an analog signal, amplify the power of the received analog signal to generate a repetitive signal, transmit the repetitive signal (e.g., may operate in an amplified transfer mode), and transmit the repetitive signal to a base station. It may be possible to receive some control by For example, the base station may control the beams used by the relay, such as transmit and/or receive beam directions. The base station may control whether the relay relays uplink messages from the UE to the base station or downlink messages from the base station to the UE. These relays may be referred to herein as Class B relays. Class B relays may operate in full-duplex mode (e.g., may receive a receive signal and transmit a repetitive signal at the same time) because the relay does not perform additional processing of the received signal to generate the repetitive signal. ). Accordingly, a Class B relay may have higher system capacity and lower forwarding latency than a relay class, for example, a relay operating in half-duplex mode. Because Class B relays amplify and transmit the received signal, noise and interference in the received signal may be included in the repetitive signal, reducing the overall effective SINR of the Class B relay.

In some aspects, a relay may receive a signal, decode the signal, and deliver a re-encoded signal or a new signal based on the decoded signal. These relays may be referred to herein as class C relays. Class C relays may also perform digital baseband processing of received signals. Class C relay may perform scheduling such as MAC scheduling based on the decoded signal. In some aspects, a Class C relay may be an integrated access and backhaul (IAB) node.

Class C relays can also operate in half-duplex mode. Processing of received signals and/or waiting for resources to receive or transmit signals during half-duplex operation results from processing at Class C relays that does not exist in communications relayed by amplifying forwarding relays, such as Class B relays. This may cause latency. A repetitive message transmitted by a Class C relay may have a lower SINR than a repetitive message transmitted by a Class B relay because decoding the received message and re-encoding the message to generate a repetitive message may cause noise to the received signal. This is because interference can be eliminated. Additionally, the half-duplex operation of Class C relays may reduce or eliminate problems such as self-interference.

4 illustrates a class B relay 400. A Class B relay may include a controller 410, a control interface 412, a receive antenna array 430, an amplifier 440, and a transmit antenna array 450. The receiving antenna array 430 and/or the transmitting antenna array 450 may be a phased antenna array. The controller 410 may control the receive antenna array 430 and the transmit antenna array 450. For example, the controller 410 may control on which beam the receiving antenna array 430 receives a signal and may control on which beam the transmitting antenna array 450 transmits a signal.

Class B relay 400 may receive an analog signal on receive antenna array 430, for example, based on a configured receive beam. In some aspects, a base station may transmit a signal to class B relay 400. In some aspects, the UE may transmit a signal to class B relay 400. The receiving antenna array 430 may provide the received signal to the amplifier 440. Amplifier 440 may include a variable gain amplifier with a gain set by controller 410. The amplifier 440 may amplify the received analog signal according to the gain to generate a repetitive signal, and transmit the repetitive signal to the transmission antenna array 450. The transmit antenna array 450 may transmit repetitive signals, for example, based on a configured transmit beam. In some aspects, when the base station transmits a signal to the class B relay 400, the transmit antenna array 450 may transmit a repetitive signal to the UE. In some aspects, when a UE transmits a signal to class B relay 400, transmit antenna array 450 may transmit a repeat signal to a base station or to another UE.

Another node may transmit a control signal to class B relay 400. For example, a donor node, control node, etc. may provide control information to a class B relay. Class B relay 400 may also receive control signals from control interface 412. Controller 410 may control elements of a class B relay based on control signals. For example, the control signal may command the controller 410 to control the receive antenna array 430 to receive on a specific beam, or the controller 410 to control the transmit antenna array 450 to transmit on a specific beam. ) may be commanded, and/or the controller 410 may be commanded to utilize a specific gain in the amplifier 440.

In some aspects, control interface 412 may operate using a different RAT than the communication being relayed. For example, the control interface 412 may include a separate modem (eg, a low-frequency modem) for receiving control signals. For example, in some aspects, class B relay 400 may be a mmW repeater and control interface 412 may be a Bluetooth modem, a narrowband IOT LTE modem, or a low frequency modem for receiving control signals via control interface 412. It may also include an NR modem. In some aspects, the control interface may receive control signals that are in-band with the signal transmitted to class B relay 400 for delivery to the UE (e.g., on a narrow bandwidth portion of the same carrier frequency). In some aspects, Class B relay 400 may be a mmW repeater, and a base station may transmit control signals to Class B relay 400 using a mmW carrier.

Figure 5 illustrates relay 500. Relay 500 includes a controller 510, control interface 512, receive antenna array 530, amplifier 540, transmit antenna array 550, switches 562a-d, and digital processing block 570. It may also be included.

The controller 510 may control the receive antenna array 530 and the transmit antenna array 550. For example, controller 510 may control which beam receive antenna array 530 uses to receive signals and control which beam transmit antenna array 550 uses to transmit signals. . The receiving antenna array 530 and/or the transmitting antenna array 550 may include a phased antenna array.

Relay 500 operates in an amplification and forwarding mode in which a received signal is amplified and forwarded (e.g., similar to a Class B relay described above) and in an amplified forwarding mode where the received signal is decoded and a message is forwarded based on the decoded message. It may also support operation in decode forwarding mode (e.g., similar to the Class C relay described above). The amplification and transfer mode may use full-duplex operation, and the decode transfer mode may use half-duplex operation. Controller 510 may control switches 562a-d. Controller 510 may close switch 562a and switch 562c and open switch 562b and switch 562d to cause relay 500 to operate in amplification transfer mode. Controller 510 may close switch 562b and switch 562d and open switch 562a and switch 562c to cause relay 500 to operate in decode transfer mode. In some aspects, controller 510 may operate relay 500 in full-duplex mode when relay 500 operates in amplify transfer mode, and relay 500 may operate in full-duplex mode when relay 500 operates in decode transfer mode. can also be operated in half-duplex mode. In some aspects, controller 510 may open all switches 562a-d to pass the received analog signal as an amplified repetitive signal and perform digital processing on the received analog signal. If the digital processing block 570 is processing the received signal, but the amplifier 540 amplifies the received signal and passes it to the transmit antenna array 550, the switch 562d may be open or closed, and the digital processing block 570 may not pass the signal through switch 562d.

In some aspects, relay 500 may receive a received signal from a base station that includes relay control data and data for the served wireless device, e.g., UE. For example, a base station may multiplex relay control data and data for served wireless devices in the frequency domain. Controller 510 may open all of switches 562a-d, digital processing block 570 may decode and extract the relay control data and pass the relay control data to the control interface, and amplifier 540 may The signal may be amplified and delivered to a transmit antenna array 550 for transmission to the intended wireless device. Relay control data may include reference signals (e.g., synchronization signal blocks), broadcast signals (e.g., system information), or multicast control messages that may be used by both relay 500 and the served wireless device. It may contain the same data.

Relay 500 may receive an analog signal on receive antenna array 530, for example, based on a configured receive beam. In some aspects, a base station may transmit a signal to relay 500. In some aspects, a UE or another relay node may transmit a signal to relay 500.

When switch 562a and switch 562c are closed and switch 562b and switch 562d are open (e.g., when controller 510 closes switch 562a and switch 562c and switches 562b and switch 562d are closed) When opening 562d), receive antenna array 530 may provide received signals to amplifier 540. Amplifier 540 may include a variable gain amplifier with a gain set by controller 510. The amplifier 540 may amplify the received analog signal according to the gain to generate a repetitive signal, and transmit the repetitive signal to the transmit antenna array 550 through the mixer 564.

When switch 562b and switch 562d are closed and switch 562a and switch 562c are open (e.g., when controller 510 closes switch 562b and switch 562d and switches 562a and switch 562d are closed) When opening 562c), receive antenna array 530 may provide received signals to digital processing block 570. The digital processing block 570 may demodulate, decode, encode, and modulate the received signal to generate a repetitive signal. In some aspects, digital processing block 570 encodes the decoded signal. In some aspects, digital processing block 570 modifies the decoded signal to generate a new digital signal and encodes the new digital signal to generate a repeating signal. Processing in digital processing block 570 may be adjusted based on control signals received via control interface 512. Control signaling may be received from a base station, for example. The control interface may be based on a different RAT than the communications being relayed. Digital processing block 570 may provide a repetitive signal to transmit antenna array 550 through mixer 564.

In some aspects, digital processing block 570 may include an intermediate frequency (IF) stage 572, an IF stage 576, and a digital baseband processor 574. IF stages 572 and 576 may include mixers, filters, analog-to-digital converters (ADCs), and/or digital-to-analog converters (DACs).

The IF stage 572 may receive an RF reception signal from the reception antenna array 530, convert the RF reception signal into a digital reception signal, and transmit the digital reception signal to the digital baseband processor 574. . For example, the IF stage 572 may convert an RF received signal into an IF received signal or convert the IF received signal into a digital received signal.

Digital baseband processor 574 may decode digital received signals. Digital baseband processor 574 may then encode the decoded digitally received signal to generate a digitally repetitive signal, or modify the decoded digitally received signal and encode the modified decoded digitally received signal to generate a digitally repetitive signal. You can also create . Aspects of decoding and/or encoding of a signal may be controlled through control signaling received via a control interface. Control signaling may be received from a base station, for example. The control interface may be based on a different RAT than the communications being relayed. Digital baseband processor 574 passes digital repetitive signals to IF stage 576.

IF stage 576 may receive a digital repetitive signal from digital baseband processor 574, convert the digital repetitive signal to an IF repetitive signal, and convert the IF repetitive signal to an RF repetitive signal. IF stage 576 may pass the RF repetitive signal through mixer 564 to transmit antenna array 550.

Upon receiving a repetitive signal from mixer 564, transmit antenna array 550 may transmit the repetitive signal, for example, based on the configured transmit beam. In some aspects, when relay 500 receives an initial signal from a base station, transmit antenna array 550 may transmit a repeated signal to a UE or child node. In some aspects, when relay 500 receives an initial signal from a UE or child node, transmit antenna array 550 may transmit a repeat signal to the base station or to a parent node.

6 is a communication diagram illustrating communication between base station 604, relay 602, and UE 606, including selection between multiple supported modes for relay 602. Although the aspects described with respect to FIG. 6 are described with respect to communications relayed between UE 606 and base station 604, the aspects do not apply to relay 602 being a child node of base station 604 and relay 602. It may similarly apply to communications relaying between or between the UE 606 and the parent node of the relay 602.

As illustrated at 603, relay 602 may notify base station 604 that relay 602 supports multiple relay modes. For example, relay 602 may be relay 500 described above with respect to FIG. 5 and provide the base station 604 that it supports amplification forwarding and decoding forwarding modes and/or that it is capable of switching between the two modes. It may also indicate that

In some aspects, relay 602 may also convey additional capability information to base station 604, as illustrated at 605. In some aspects, additional capability information 605 may indicate whether its ability to operate in a particular mode is beam dependent. For example, additional capability information 605 may include eligible transmit and/or receive beams for use with a given mode of operation. For example, a first mode may be feasible or effective for a given transmit and/or receive beam, while a second mode may not be feasible or effective for a given transmit and/or receive beam (e.g. For example, if the first mode is a full-duplex/amplified transfer mode and the second mode is a half-duplex/decode transfer mode, the transmit and receive beams that are close together may function in the first mode, but have too much self-interference to effectively operate in the second mode. may not be able to function). Relay 602 allows base station 604 to recognize that a given transmit and/or receive beam may be used when relay 602 operates in a first mode, but may not be used when relay 602 operates in a second mode. You can also communicate with . In some aspects, the additional capability information 605 may include a noise figure for the relay 602, such as loss of output SNR. The noise figure may be based on the difference between the input SNR and output SNR for the relay. The noise figure may be due to internal impairment, such as internal noise, that reduces SNR. In some aspects, the additional capability information 605 may include the maximum power gain and/or maximum output power of the relay 602. In some aspects, additional capability information 605 may include latency for relay 602 to switch between modes.

In some aspects, relay 602 may communicate measurement information 607 to base station 604. Measurement information 607 may include measurements of the backhaul link between relay 602 and base station 604 (either directly linked or linked through one or more additional relays). Measurement information 607 may include measurements of the access link between relay 602 and UE 606 (either directly linked or linked through one or more additional relays). In some aspects, relay 602 may operate in an amplified transfer mode, and the measurement information may include a measured or estimated end-to-end signal-to-noise ratio when operating in the amplified transfer mode. In some aspects, UE 606 may additionally or alternatively communicate such measurement information 609 to base station 604. As mentioned above, aspects illustrated for UE 606 may also be performed by other relay nodes. Accordingly, the base station may receive measurement information or other information from a relay node and use information from other relay nodes to determine a mode for relay 602.

In some aspects, base station 604 may select a mode for relay 602, as illustrated at 611, from supported modes communicated by relay 602. Base station 604 may select a mode at 611 based on additional information 605 provided to base station 604 by relay 602. If the additional information 605 includes eligible transmit and/or receive beams for a given mode, base station 604 may determine the transmit and/or receive beams on which communications between base station 604 and UE 606 will be transmitted. Alternatively, you can select a mode for which the corresponding beam is suitable. If the additional information 605 includes a noise figure for the relay 602, the base station 604 uses the amplified transfer mode to determine the expected SNR for communication between the base station 604 and the UE 606. You can use the noise figure, select an amplified transfer mode if the expected SNR is above the threshold, or select another mode (e.g. decode transfer mode) if the expected SNR is below the threshold.

Base station 604 may select a mode at 611 based on measurement information 609 provided to base station 604 by relay 602 and/or measurement information 609 provided by UE 606. For example, the base station 604 may use the measurement information 609 to determine or estimate the end-to-end quality of the link between the base station 604 and the UE 606 and, if the quality is above a threshold, select the amplified transfer mode. You can also select the decode delivery mode if the quality is below the threshold. Base station 604 may measure an uplink signal received from UE 606 and select a mode based on the measured uplink signal. For example, relay 602 may use an amplified transfer mode to convey an uplink signal from UE 606 to base station 604, where base station 604 determines that the power and/or quality of the uplink signal is below a threshold. If high, the amplify transfer mode may be selected, or if the power and/or quality of the uplink signal is below a threshold, the decode transfer mode may be selected. UE 606 may measure a downlink signal received from base station 604 and report measurements 609 of the downlink signal, and base station 604 may perform a measurement at 611 based on the measurements of the downlink signal. You can also select a mode. For example, relay 602 may convey a downlink signal to UE 606 using an amplification transfer mode, and UE 606 may report measurements of the downlink signal to base station 604, which 604 may select an amplification delivery mode if the power and/or quality (e.g., SNR, reference signal received power, or received signal strength indicator) of the downlink signal is above a threshold, or the power and/or quality of the downlink signal. /Or, if the quality is below a threshold, the decode delivery mode may be selected. Base station 604 may select a mode at 611 based on quality of service (QoS) requirements for serving UE 606. For example, if the QoS requirements for traffic from UE 606 indicate that traffic from the UE must have maximum latency or maximum SNR, base station 604 may provide latency or SNR within the indicated limits. You can also select a mode.

Base station 604 may select a mode at 611 based on the topology of the backhaul network including relay 602. The base station 604 may consider the availability of other relays in the backhaul network and/or the association between the relay and the UE when selecting a mode for the relay 602. For example, base station 604 may schedule communications with multiple UEs over all relays in the backhaul network, and base station 604 may schedule communications for relays 602 based on a globally optimized solution for scheduling. You can also select a mode.

When selecting a mode for relay 602, base station 604 may indicate the selected mode to relay 602, for example, in signaling 613. In some aspects, base station 604 may dynamically communicate the selected mode via an in-band control channel, such as PDCCH, for example. In some aspects, base station 604 may communicate the selected mode semi-statically. In some aspects, base station 604 may also communicate the selected mode to UE 606. Base station 604 may also indicate the selected mode to UE 606 or child nodes served by relay 602, for example, in signaling 615.

In some aspects, relay 602 may select a mode for itself as illustrated at 617. Base station 604 may provide results or parameters used by relay 602 to select or determine a mode. Relay 602 may determine the qualified transmit and/or receive beams for a given mode of operation, the noise figure for relay 602, and Its modes may be selected based on the capabilities of relay 602, including maximum power gain and/or maximum output power, and/or latency of relay 602 for switching between modes, in some aspects. Relay 602 may collect measurement information and select its mode based on the measurement information, e.g., as described with respect to selection by a base station at 611. The measurement information may include measurements of the backhaul link between relay 602 and base station 604, measurements of the access link between relay 602 and UE 606, and/or the end-to-end signal-to-noise ratio when operating in amplified forwarding mode. It may also include . Relay 602 may also receive measurement information from UE 606 or child nodes.

Relay 602 may have a configured mode for serving a given UE, or may select its mode based on the identity of the UE 606 being served. For example, relay 602 may operate using an amplify transfer mode when serving UE1, or may operate using a decode transfer mode when serving UE2, and upon determining that UE 606 is UE1. You can also select the amplified delivery mode.

Relay 602 may select its mode based on the physical channel on which communications between base station 604 and UE 606 will be transmitted. Relay 602 may select an amplification delivery mode when it delivers communications over a control or broadcast channel. Relay 602 may select a decode delivery mode when it delivers communications over a data channel.

Relay 602 may select its mode based on QoS or traffic type for communication between base station 604 and UE 606. Relay 602 may select an amplified forwarding mode when the QoS or traffic type for the communication indicates that the communication is low latency traffic (e.g., URLLC traffic). Relay 602 may select a decode delivery mode when the QoS or traffic type does not indicate that the communication is low latency traffic (e.g., the communication is eMBB traffic).

In some aspects, relay 602 may have a default mode of operation and may operate in the default mode of operation if certain criteria are not met to trigger another mode of operation. For example, the relay 602 may operate in a decode forwarding mode by default and switch to an amplified forwarding mode when the transmit and receive beam combination causes too much self-interference for the decode forwarding mode, or the base station 604 ) may switch to amplified forwarding mode when the QoS for the traffic between the UE 606 and the UE 606 indicates that the traffic should have low latency.

In response to selecting its mode of operation at 617, relay 602 may indicate the selected mode to base station 604, for example, in signaling 619. In some aspects, relay 602 may convey the selected mode to UE 606, such as in signaling 621. In some aspects, the relay 602 may indicate the selected mode to the base station 604, and the base station may indicate the relay's mode of operation to the UE 606, for example, in signaling 623.

Upon selecting its operating mode at 617 and communicating the selected operating mode to base station 604, or upon receiving the selected operating mode from the base station at 613, relay 602 may operate using the selected operating mode. there is. For example, relay 602 may change from operation based on the first mode to operation based on the second mode at 627.

Base station 604 determines whether relay 602 or a UE 606 served by relay 602 is based at least in part on an operation mode determined for the relay node, whether determined by base station 604 or relay 602. You can also schedule resources for. Communication rate, scheduled resources and/or serving beams may be determined by the base station based on the determined operating mode for the relay node.

The operating mode used by the relay 602 when transmitting communications to the UE 606 may affect the performance of the UE 606. Different modes may have different effective SNRs, which may result in different achieved Modulation and Coding Scheme (MCS) rates for the UE. Different modes may result in signals being received by UE 606 at different times. Different modes may result in different amounts of interference observed by UE 606.

In some aspects, the operating mode for relay 602 may be indicated to UE 606 (e.g., at 615 or 621). In response to learning the mode of operation of relay 602, whether UE 606 receives an indication of the selected mode from base station 604 or relay 602, UE 606 is configured to accommodate using the selected mode. Receive parameters for receiving communications from or transmitting communications to relay 602 may be adjusted, at 625. In some aspects, UE 606 may transmit a first reference signal when processing a signal received from relay 602 operating using a first mode, and relay 602 operating using a second mode. A second reference signal may be transmitted when processing the signal received from. UE 606 may adjust reception timing based on changes in the mode used by relay 602. The UE 606 may adjust the beam configuration used to communicate with the relay 602 based on the indication of the relay's operating mode change. The UE may adjust the MCS used to communicate with the relay 602 based on the indication of the relay's operating mode change.

Figure 7 is a flow chart 700 of a wireless communication method. The method may include a base station or components of a base station (e.g., base station 102, 180, 310, 604; device 802/802'; memory 376) or the entire base station 604 or base station 604. ), such as processing system 2114, which may be a TX processor 316, RX processor 370, and/or controller/processor 375. Optional aspects are illustrated by dashed lines.

At 702, the base station receives capability information from the relay node, the capability information indicating support for the first relay mode and the second relay mode. For example, a first relay mode may include amplification and transfer modes, and a second relay mode may include decode and transfer modes. Receiving capability information may be performed, for example, by capability information component 812 of device 802.

In some aspects, at 704, a base station provides information to a relay node, where a mode of operation is selected by the relay node based on the information. Information may be provided, for example, by relay information component 816 of device 802.

At 708, the base station determines an operation mode for the relay node. The mode of operation may include a first relay mode or a second relay mode, for example an amplify and transfer mode or a decode and transfer mode. The decision may be performed, for example, by decision component 814 of device 802. For example, as part of the decision at 708, the base station may select an operation mode. The base station may then provide additional information at 710 regarding the operation mode determined by the base station. Figure 6 illustrates an example in which a base station determines a mode for a relay node and displays the selected relay mode to the relay node and/or UE. Providing information may include at least one of providing an indication of the determined operating mode or providing rules or parameters based on the operating mode selected by the relay node. Information may be provided as an indication of the mode of operation to the relay node in dynamic control information. Information may be provided as an indication of the mode of operation to the relay node in semi-static control information.

In some aspects, at 706, the base station may receive additional information from a relay node, for example, as described with respect to 605, 607, and/or 609 of FIG. 6. Additional information may be received, for example, by additional information component 808 of device 802. The base station may determine the mode of operation based on additional information from the relay node. For example, the additional information may include beam dependence for at least one of the first relay mode or the second relay mode, noise characteristics of the relay node, power gain parameters for the relay node, output power parameters for the relay node, or It may also include at least one of the switching latency parameters. The additional information may include a first measurement report on the backhaul link between the relay node and the base station, a second measurement report on the access link between the relay node and at least one of the UE or the second relay node, or a first relay mode or a second relay It may also include at least one SNR estimate for at least one of the modes.

As part of determining the mode of operation, at 708, the base station may receive an indication from the relay node indicating the mode of operation. The base station may receive information received from the relay node, uplink measurements of one or more signals transmitted by at least one of the relay node, the UE or the second relay node, downlink measurements reported by the UE or the second relay node, and The operation mode may be determined based on at least one of QoS requirements or the topology of the backhaul network.

At 712, the base station communicates with the relay node based at least in part on the determined mode of operation. In some aspects, a wireless node may be a relay. The base station may also communicate the selected mode as a relay. Communication may include receiving communications from the relay and/or transmitting communications to the relay based on the determined mode of operation. Therefore, communication may be performed, for example, by receiving component 804 and/or transmitting component 810 of device 802. For example, a base station may schedule resources for a relay node or a wireless device served by a relay node based at least in part on an operation mode determined for the relay node, wherein at least one of a communication rate, resource, or serving beam is selected. One is determined by the base station based on the operation mode determined for the relay node. In some aspects, a wireless node may be a UE (eg, a UE that is scheduled to communicate via a relay or that a base station will schedule to communicate via a relay). The base station may indicate the determined operation mode to the UE.

8 is a conceptual data flow diagram 800 illustrating data flow between different means/components in an example apparatus 802. The device may be a base station or a component of a base station. The device includes a receiving component 804 that receives communications from a relay node 850 and/or from a UE 860. Receiving component 804 may receive capability information, additional information, and/or selected mode information from relay node 850, e.g., as described above with respect to 712 of FIG. 7 It may also communicate with the relay node 850 and/or the UE 860 based on the mode determined for. The device includes a transmitting component 810 configured to transmit communications to a relay node 850 and/or to a UE 860. Transmitting component 810 may transmit an indication of the selected mode to relay node 850, e.g., based on the mode determined for relay node 850, as described above with respect to 712 of FIG. May communicate with relay node 850 and/or UE 860. The device includes a capability information component 812 configured to receive capability information from a relay node 850, for example as described with respect to 702 in FIG. 7, wherein the capability information is configured for a first relay mode and a second relay Indicates support for the mode. The device includes an additional information component 808 configured to receive additional information from a relay node 850, for example as described in relation to 706 in FIG. 7, where the base station provides information based on the additional information from the relay node. to determine the operation mode. The apparatus includes a decision component 814 configured to determine an operation mode for the relay node, e.g., as described above with respect to 708 in FIG. 7 . The device includes a relay information component 816 configured to provide information to a relay node, for example as described above with respect to 704 in FIG. 7, wherein a mode of operation is selected by the relay node based on the information. .

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of FIG. 7 . Thus, each block in the above-described flowchart of FIG. 7 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

9 is a diagram 900 illustrating an example hardware implementation for an apparatus 802' employing processing system 914. Processing system 914 may be implemented with a bus architecture, generally represented by bus 924. Bus 924 may include any number of interconnecting buses and bridges depending on the particular application and overall design constraints of processing system 914. Bus 924 may be one or more processors and/or, as represented by processor 904, components 804, 808, 810, 812, 814, and 816, and computer-readable media/memory 906. Links various circuits, including hardware components, together. Bus 924 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be described further. .

Processing system 914 may be coupled to transceiver 910. Transceiver 910 is coupled to one or more antennas 920. Transceiver 910 provides a means of communicating with various other devices over a transmission medium. Transceiver 910 receives a signal from one or more antennas 920, extracts information from the received signal, and provides the extracted information to processing system 914, specifically receive component 804. Additionally, transceiver 910 receives information from processing system 914, specifically transmit component 810, and, based on the received information, generates a signal to be applied to one or more antennas 920. Processing system 914 includes a processor 904 coupled to computer-readable media/memory 906 . Processor 904 is responsible for general processing, including execution of software stored on computer-readable media/memory 906 . When executed by processor 904, the software causes processing system 914 to perform various functions described above for any particular device. Computer-readable media/memory 906 may also be used to store data that is manipulated by processor 904 when executing software. Processing system 914 further includes at least one of components 804, 808, 810, 812, 814, and 816. The components may be software components running on processor 904, resident/stored in computer-readable medium/memory 906, one or more hardware components coupled to processor 904, or some combination thereof. . Processing system 914 may be a component of base station 310 and may include memory 376, and/or at least one of TX processor 316, RX processor 370, and controller/processor 375. there is. Alternatively, processing system 914 may be an entire base station (e.g., see 310 in FIG. 3).

In one configuration, an apparatus 802/802' for wireless communication includes means for receiving capability information from a relay node and means for determining an operation mode for the relay node. The device may include means for providing information to the relay node. The device may also include means for receiving additional information from the relay node. The device may include means for providing an indication of the selected mode to the relay node. The device may include means for communicating with the relay node based at least in part on the determined mode of operation. The above-described means may be one or more of the above-described components of the apparatus 802 and/or the processing system 914 of the apparatus 802′, configured to perform the functions recited by the above-described means. As described above, processing system 914 may include a TX processor 316, RX processor 370, and controller/processor 375. As such, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions enumerated by the above-described means.

Figure 10 is a flow chart 1000 of a wireless communication method. The method is performed by a relay node or a component of a relay node (e.g., relay 103, 500, 602; device 1102/1102'; or processing system 1214, which may include memory 360). It could be. Optional aspects are illustrated by dashed lines.

At 1002, the relay node transmits capability information to the base station, the capability information indicating support for the first relay mode and the second relay mode. The first relay mode may include an amplification and forwarding mode for full-duplex communication, and the second relay mode may include a decode and forwarding mode for half-duplex communication. The first relay mode or the second relay mode may be the default mode for the relay node. Transmission of capability information may be performed, for example, by capability information component 1108 of the device.

In some aspects, at 1004, the relay node transmits additional information to the base station, where the mode of operation is based on the additional information transmitted to the base station. Additional information may be transmitted, for example, by transmitting component 1110 of device 1102. Additional information may include beam dependence for at least one of the first relay mode or the second relay mode, noise characteristics of the relay node, power gain parameter for the relay node, output power parameter for the relay node, or switching latency parameter for the relay node. It may include at least one of the following. The additional information may include a first measurement report on the backhaul link between the relay node and the base station, a second measurement report on the access link between the relay node and at least one of the UE or the second relay node, or a first relay mode or a second relay It may also include at least one SNR estimate for at least one of the modes.

In some aspects, at 1006, the relay node may receive information from the base station including an indication of the mode selected by the base station. Additional information may be received, for example, by base station information component 1112 of device 1102.

At 1008, the relay node determines an operation mode, where the operation mode includes a first relay mode or a second relay mode. The decision may be performed, for example, by decision component 1114 of device 1102. The operating mode may be determined based on information received from the base station. The information may include at least one of an indication of the mode selected by the base station or rules or parameters based on which the mode of operation is determined by the relay node. The information may include an indication of the mode of operation received from the base station in the dynamic control information. The information may include an indication of the mode of operation received from the base station in semi-static control information. Determining the operating mode at 1008 may include changing between a first relay mode and a second relay mode. The relay node may perform at least one of the following: uplink measurements for one or more signals transmitted by the UE or the second relay node, downlink measurements reported by the UE or the second relay node, QoS requirements for the UE, or the topology of the backhaul network. The operation mode may be determined based on one. The relay node may determine the operation mode based on at least one of the beam used by the relay node, the child node served by the relay node, the channel type relayed by the relay node, or the traffic type relayed by the relay node. It may be possible.

In some aspects, at 1010, the relay node transmits to the base station some information indicating the mode of operation selected by the relay node. Information indicating the mode of operation may be transmitted, for example, by the determining component 1114 and/or the transmitting component 1110 of the device 1102.

At 1012, the relay node communicates with at least one of a base station or another wireless device based at least in part on the determined mode of operation. For example, receiving component 1104 may receive communications and/or transmitting component 1110 of device 1102 may transmit communications based on the determined operating mode. For example, the base station may receive an allocation of resources from the base station based at least in part on an operation mode determined for the relay node, where at least one of a communication rate, resource, or serving beam is determined for the operation mode determined for the relay node. It is based on

11 is a conceptual data flow diagram 1100 illustrating data flow between different means/components in an example apparatus 1102. A device may be a relay node or a component of a relay node. The apparatus includes a receiving component 804 that receives communications from a base station 1150 or from a UE or child relay node. Receive component 804 may receive information from base station 1150 (UE or child node) based on the mode determined for relay mode 1102, for example, as described above with respect to 1012 of FIG. may be configured to communicate with a base station 1150 and/or a wireless device served by a relay (such as). The apparatus includes a transmitting component 1110 configured to transmit communications to a base station 1150. Transmitting component 1110 may transmit capability information or operating modes to base station 1150, e.g., based on the mode determined for relay node 1102, as described above with respect to 1012 of FIG. 10. It may also be configured to communicate with the base station 1150. The apparatus includes a base station information component 1112 configured to receive information from a base station including an indication of the mode selected by the base station, e.g., as described above with respect to 1006 in FIG. 10 . The apparatus includes a determining component 1114 configured to determine a mode of operation, as described above with respect to 1008 of FIG. 10 , where the mode of operation includes a first relay mode or a second relay mode. The device includes a capability information component 1108 configured to transmit capability information to a base station, for example as described above with respect to 1002 in FIG. 10, where the capability information is for a first relay mode and a second relay mode. Shows support.

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of FIG. 10. Thus, each block in the above-described flowchart of FIG. 10 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

FIG. 12 is a diagram 1200 illustrating an example hardware implementation for an apparatus 1102' employing processing system 1214. Processing system 1214 may be implemented with a bus architecture, generally represented as bus 1224. Bus 1224 may include any number of interconnecting buses and bridges depending on the particular application and overall design constraints of processing system 1214. Bus 1224 includes a variety of processors and/or hardware components, represented by processor 1204, components 1104, 1108, 1110, 1112, and 1114, and computer-readable media/memory 1206. Link the circuits together. Bus 1224 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be described further.

Processing system 1214 may be coupled to transceiver 1210. Transceiver 1210 is coupled to one or more antennas 1220. Transceiver 1210 provides a means of communicating with various other devices over a transmission medium. Transceiver 1210 receives a signal from one or more antennas 1220, extracts information from the received signal, and provides the extracted information to processing system 1214, specifically receive component 1104. Additionally, transceiver 1210 receives information from processing system 1214, specifically transmit component 1110, and, based on the received information, generates a signal to be applied to one or more antennas 1220. Processing system 1214 includes a processor 1204 coupled to computer-readable media/memory 1206. Processor 1204 is responsible for general processing, including execution of software stored on computer-readable media/memory 1206. The software, when executed by processor 1204, causes processing system 1214 to perform various functions described above for any particular device. Computer-readable media/memory 1206 may also be used to store data that is manipulated by processor 1204 when executing software. Processing system 1214 further includes at least one of components 1104, 1108, 1110, 1112, and 1114. The components may be software components executing on processor 1204, resident/stored in computer-readable medium/memory 1206, one or more hardware components coupled to processor 1204, or some combination thereof. .

In one configuration, an apparatus 1102/1102' for wireless communication includes means for transmitting capability information to a base station and means for determining a mode of operation. The device may include means for transmitting additional information to the base station. The apparatus may include means for receiving information from the base station including an indication of the mode selected by the base station. The device may include means for transmitting information indicating the mode of operation selected by the relay node to the base station. The apparatus may include means for communicating with at least one of a base station and another wireless device based at least in part on the determined mode of operation. The above-described means may be one or more of the above-described components of apparatus 1102 and/or the processing system 1214 of apparatus 1102′, configured to perform the functions recited by the above-described means. Processing system 1214 may include a TX processor 316, RX processor 370, and controller/processor 375. Accordingly, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions listed by the above-described means.

13 is a flow chart 1300 of a method of wireless communication in a wireless device served by a relay node. The method includes, by a UE or a component of a UE (e.g., UE 104, 350, 606), another relay node or a component of a relay node (e.g., a child node of a relay node), a device 1402/1402' ) by; may include memory 360 and may include a relay node, relay node component, or entire UE 350 or a component of UE 350, such as TX processor 368, RX processor 356, and/or controller /may be performed by a processing system 1514, which may also be a processor 359.

At 1302, the wireless device receives an indication of the operating mode for the relay node. The indication may indicate the first relay mode or the second relay mode. The first relay mode may include amplification and transfer mode, and the second relay mode may include decode and transfer mode. A wireless device may be a UE served by a relay node or a child node of a relay node. An indication may be received from a relay node. The indication may be received from a base station. The indication may be received by, for example, displayed mode component 1412 and/or receiving component 1404 of device 1402.

At 1304, the wireless device determines at least one parameter for communicating with the relay node based on the indicated operating mode for the relay node. The determination may be performed, for example, by communication parameter determination component 1414 of device 1402. Parameters determined based on the indicated operating mode for the relay node may include the MCS used to communicate with the relay node. Parameters determined based on the indicated operating mode for the relay node may include reception timing for communicating with the relay node. Parameters determined based on the indicated operating mode for the relay node may include reference signals used to communicate with the relay node. Parameters determined based on the indicated operating mode for the relay node may include the beam configuration used to communicate with the relay node. In some examples, when the wireless device is a child relay node of a relay node, the child relay node has its own operating mode (which may also be referred to as a relay node operating mode) based on the operating mode of the relay node serving the child relay node. You can also decide.

A wireless device may receive an allocation of resources from a base station based at least in part on an operation mode determined for the relay node. Communication rate, scheduled resources, and/or serving beams may be based on the operating mode for the relay node.

14 is a conceptual data flow diagram 1400 illustrating data flow between different means/components in an example apparatus 1402. A device may be a UE or a component of a UE. A device may be a child relay node served by a relay node or a component of such a child relay node. The device includes a receiving component 1404 that receives communications from a relay node 1450 and/or a base station. The apparatus includes a transmitting component 1410 configured to transmit communications to a relay node 1450 and/or to a base station. The device includes an indicated mode component 1412 configured to receive an indication of an operating mode for the relay node, for example as described with respect to 1302 in FIG. 13 , where the indication is a first relay mode or a second relay mode. represents. The device includes a communication parameter determination component 1414 that determines at least one parameter for communicating with the relay node based on an indicated operating mode for the relay node, as described, for example, with respect to 1304 in FIG. 13 .

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of Figure 13. Thus, each block in the above-described flowchart of FIG. 13 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

FIG. 15 is a diagram 1500 illustrating an example hardware implementation for an apparatus 1402' employing processing system 1514. Processing system 1514 may be implemented with a bus architecture, generally represented by bus 1524. Bus 1524 may include any number of interconnecting buses and bridges depending on the particular application and overall design constraints of processing system 1514. Bus 1524 includes various circuits including one or more processors and/or hardware components represented by processor 1504, components 1404, 1410, 1412, 1414, and computer-readable media/memory 1506. Link them together. Bus 1524 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known and will not be described further.

Processing system 1514 may be coupled to transceiver 1510. Transceiver 1510 is coupled to one or more antennas 1520. Transceiver 1510 provides a means of communicating with various other devices over a transmission medium. Transceiver 1510 receives a signal from one or more antennas 1520, extracts information from the received signal, and provides the extracted information to processing system 1514, specifically receive component 1404. Additionally, transceiver 1510 receives information from processing system 1514, specifically transmit component 1410, and, based on the received information, generates a signal to be applied to one or more antennas 1520. Processing system 1514 includes a processor 1504 coupled to computer-readable media/memory 1506. Processor 1504 is responsible for general processing, including execution of software stored on computer-readable media/memory 1506. The software, when executed by processor 1504, causes processing system 1514 to perform various functions described above for any particular device. Computer-readable media/memory 1506 may also be used to store data that is manipulated by processor 1504 when executing software. Processing system 1514 further includes at least one of components 1404, 1410, 1412, and 1414. The components may be software components running on processor 1504, resident/stored in computer-readable medium/memory 1506, one or more hardware components coupled to processor 1504, or some combination thereof. Processing system 1514 may be a component of UE 350 and may include memory 360 and/or at least one of TX processor 368, RX processor 356, and controller/processor 359. . Alternatively, the processing system 1514 may be the entire UE (e.g., see 350 in FIG. 3).

In one configuration, the device 1402/1402' for wireless communication includes means for receiving an indication of an operating mode for a relay node from a first relay mode to a second relay mode and based on the indicated operating mode for the relay node. and means for determining at least one parameter for communicating with the relay node. The above-described means may be one or more of the above-described components of apparatus 1402 and/or the processing system 1514 of apparatus 1402′, configured to perform the functions recited by the above-described means. As described above, processing system 1514 may include a TX processor 368, RX processor 356, and controller/processor 359. As such, in one configuration, the above-described means may be a TX processor 368, RX processor 356, and controller/processor 359 configured to perform the functions enumerated by the above-described means.

FIG. 16A is a diagram 1600 illustrating a repetitive operation. First wireless node 1610 may communicate with second wireless node 1630 via remote unit 1620. First wireless node 1610 may transmit signal X to remote unit 1620. Remote unit 1620 may utilize a repetitive mode of operation to generate signal X' based on signal X' for transmission to second wireless node 1630. The repetitive operation mode may regenerate signal X, and signal X' may be similar to signal X. For example, remote unit 1620 may generate signal X', which results in a channel and noise compensated received signal X. Remote unit 1620 may transmit signal X' to second wireless node 1630.

In some aspects, remote unit 1620 may be comprised of multiple functional partitions for repetitive modes of operation. Some example functional divisions for repetitive operating modes are discussed below with respect to FIG. 17 .

FIG. 16B is a diagram 1650 illustrating a relaying operation. First wireless node 1660 may communicate with second wireless node 1680 via remote unit 1670. First wireless node 1660 may transmit signal X to remote unit 1670. Remote unit 1670 may utilize a relaying mode of operation to generate signal Y based on signal X for transmission to second wireless node 1680. The relaying mode of operation may generate signal Y as a new signal (e.g., separate from signal X) that includes information about signal X or that includes information extracted from signal X. In some aspects, remote unit 1670 may include the payload of signal X in signal Y, or the second wireless node 1680 may include information that may identify the payload of signal X in signal Y. It may be possible. In some aspects, remote unit 1670 may receive a payload for signal Y in signal X, or may receive information used to generate signal Y in signal X. Remote unit 1670 may transmit signal Y to second wireless node 1680.

In some aspects, remote unit 1670 may be comprised of multiple functional partitions for relaying modes of operation. Some example functional divisions for the relaying mode of operation are discussed below with respect to FIGS. 18 and 19.

17 is a diagram 1700 illustrating an iterative operation with multiple functional divisions. The repetitive operation may also be performed by a remote unit. The transmitting wireless node may transmit a signal X intended for the receiving wireless node to the remote unit. The remote unit may receive signal Z, which is signal X modified by the channel and by noise, and may utilize repetitive operations to generate signal X' based on signal Z. The remote unit may then transmit signal X' to the receiving wireless node.

A remote unit may include a receive chain and a transmit chain, and may utilize the receive chain and transmit chain to perform repetitive operations. The remote unit may utilize the receive chain to process the received signal Z and the transmit chain to generate the transmit signal X'. The receive chain includes analog beamforming at 1712, analog-to-digital conversion at 1722, performing cyclic prefix removal and fast Fourier transform at 1732, digital beamforming at 1742, resource element demapping at 1744, channel estimation and equalization at 1752, and demodulation at 1754. , descrambling at 1762, and decoding at 1764. The transmit chain encodes at 1766, scrambling at 1768, modulating at 1756, mapping layers at 1757, precoding at 1758, mapping resource elements at 1746, digital beamforming at 1748, performing inverse fast Fourier transform at 1734 and adding cyclic transpose, 1724 It may include digital-to-analog conversion at 1714, and analog beamforming at 1714.

Repetitive operations may also include functional segmentation. Functional partitions may also indicate specific paths through the transmit and receive chains. For example, different functional divisions may involve different degrees of processing performed on the receive signal Z and the transmit signal X' (e.g., the signal may pass different lengths down the transmit and receive chains). (maybe). The repetitive operation illustrated in FIG. 17 includes six functional divisions 1710, 1720, 1730, 1740, 1750, and 1760. In some aspects, a repetitive operation may include all six functional divisions. However, the present disclosure is not limited thereto, and in some aspects, the repetitive operations may include any subset of the illustrated functional divisions, or may include other functional divisions.

A remote unit utilizing first functional partition 1710 may perform analog beamforming to receive signal Z at 1712. The remote unit may pass the received signal Z through an amplifier 1713 to amplify the signal. The remote unit may then perform analog beamforming on the received signal Z (e.g., amplified by amplifier 1713) at 1714 to transmit transmit signal X'. The first functional division 1710 may be an analog repeat.

A remote unit utilizing the second functional partition 1720 may perform analog beamforming to receive signals at 1712. The remote unit may then perform analog-to-digital conversion at 1722 to determine a time domain IQ sample for the received signal Z. The remote unit may then perform digital-to-analog conversion at 1724 based on the time domain IQ samples and analog beamforming at 1714 based on the resulting signal to transmit the transmit signal X'.

A remote unit utilizing third functional partition 1730 may perform analog beamforming to receive signal Z at 1712. The remote unit may then perform analog-to-digital conversion at 1722 and perform a fast Fourier transfer at 1732 to determine a frequency domain IQ sample (e.g., tone) for the received signal Z. Fourier transfer can also be performed. The remote unit may then perform an inverse fast Fourier transform and add a cyclic transpose at 1734 based on the frequency domain IQ samples, or a digital-to-analog transform at 1724 based on the time domain IQ samples, resulting in Based on the signal, analog beamforming may be performed at 1714 to transmit the transmission signal X'.

A remote unit utilizing fourth functional partition 1740 may perform analog beamforming to receive signal Z at 1712. The remote unit may then perform, for each receive antenna, an analog-to-digital conversion at 1722, a cyclic prefix removal and a fast Fourier transfer at 1732, for the received signal Z, and a digital Beamforming may be performed, or resource element demapping may be performed at 1744 to determine the received symbol. For example, a remote unit may have multiple receive antennas and may separately process signals received on each receive antenna (e.g., separately for signals received on each antenna) and perform analog processing at 1712. perform beamforming, analog-to-digital conversion at 1722, cyclic prefix removal and fast Fourier transfer at 1732, digital beamforming at 1742, and resource element demapping at 1744; , the results may be combined at 1744 to determine the symbol of the received signal Z. The remote unit may then perform resource element mapping at 1746 based on the symbols for the received signal Z, perform an inverse fast Fourier transform and add a cyclic transpose at 1734, and digital-to-analog conversion at 1724. may be performed, or analog beamforming may be performed at 1714 based on the resulting signal to transmit the transmission signal X′.

A remote unit utilizing the fifth functional partition 1750 may perform analog beamforming to receive signal Z at 1712. The remote unit may then perform analog-to-digital conversion at 1722, cyclic prefix removal and fast Fourier transfer at 1732, digital beamforming at 1742, and a resource element at 1744. Demapping may be performed, channel estimation and equalization may be performed at 1752, and demodulation may be performed at 1754 to determine a codeword for the received signal Z. The remote unit may then perform Based on the codeword, modulation may be performed at 1756, resource element mapping may be performed at 1746, an inverse fast Fourier transform may be performed and a cyclic transpose may be added at 1734, and digital-to-analog conversion may be performed at 1724. Alternatively, analog beamforming may be performed at 1714 based on the resulting signal to transmit the transmission signal X′.

A remote unit utilizing the sixth functional partition 1760 may perform analog beamforming to receive signal Z at 1712. The remote unit may then perform analog-to-digital conversion at 1722, cyclic prefix removal and fast Fourier transfer at 1732, digital beamforming at 1742, and a resource element at 1744. Demapping may be performed, channel estimation and equalization may be performed at 1752, demodulation may be performed at 1754, descrambling may be performed at 1762, and decoding may be performed at 1764 to The remote unit may then perform encoding at 1766, scrambling at 1768, and modulation at 1756 based on the transport block for the received signal Z. Resource element mapping may be performed at 1746, an inverse fast Fourier transform may be performed and a cyclic transpose may be added at 1734, a digital-to-analog conversion may be performed at 1724, and based on the resulting signal, at 1714 The transmission signal X′ may be transmitted by performing analog beamforming.

18 is a diagram 1800 illustrating a relaying operation with multiple functional divisions to create outgoing communications. Relaying operations may also be performed by a remote unit. The transmitting wireless node may transmit a signal X intended for the receiving wireless node to the remote unit. The remote unit may receive signal Z, which is signal X modified by the channel and by noise, and may utilize repetitive operations to generate signal Y based on signal Z. The remote unit may then transmit signal Y to the receiving wireless node.

A remote unit may include a receive chain and a transmit chain, and may utilize the receive chain and transmit chain to perform relaying operations. The remote unit may utilize the receive chain to process the received signal Z and the transmit chain to generate the transmit signal Y. The receive chain includes analog beamforming at 1812, analog-to-digital conversion at 1822, performing cyclic prefix removal and fast Fourier transform at 1832, digital beamforming at 1842, resource element demapping at 1844, channel estimation and equalization at 1852, and demodulation at 1854. , descrambling at 1862, and decoding at 1864. The transmit chain encodes in 1866, scrambling in 1868, modulating in 1856, mapping layers in 1857, precoding in 1858, mapping resource elements in 1846, digital beamforming in 1848, performing inverse fast Fourier transform in 1834 and adding cyclic transpose, 1824 It may include digital-to-analog conversion at 1814, and analog beamforming at 1814.

Relaying operations may also include functional division. The relaying operation illustrated in Figure 18 includes five functional divisions 1820, 1830, 1840, 1850, and 1860. In some aspects, the relaying operation may include all five functional divisions. However, the present disclosure is not limited thereto, and in some aspects, relaying operations may include any subset of the illustrated functional divisions, or may include other functional divisions.

A remote unit utilizing first functional partition 1820 may perform analog beamforming to receive signal Z at 1812. The remote unit may then perform analog-to-digital conversion at 1822, cyclic prefix removal and fast Fourier transfer at 1832, digital beamforming at 1842, and a resource element at 1844. Demapping may be performed, channel estimation and equalization may be performed at 1852, demodulation may be performed at 1854, descrambling may be performed at 1862, and decoding may be performed at 1864 to The transport block may contain time domain IQ samples that the remote unit will use to generate signal Y. The remote unit may then perform digital-to-analog conversion at 1824 based on the time domain IQ samples received in the transport block and perform analog beamforming at 1814 based on the resulting signal to transmit the transmit signal Y. It may be possible.

A remote unit utilizing the second functional partition 1830 may perform analog beamforming to receive signal Z at 1812. The remote unit may then perform analog-to-digital conversion at 1822, cyclic prefix removal and fast Fourier transfer at 1832, digital beamforming at 1842, and a resource element at 1844. Demapping may be performed, channel estimation and equalization may be performed at 1852, demodulation may be performed at 1854, descrambling may be performed at 1862, and decoding may be performed at 1864 to The transport block may contain frequency domain IQ samples that the remote unit will use to generate signal Y. The remote unit may then perform an inverse fast Fourier transform and add a cyclic transpose at 1834 based on the frequency domain IQ samples received in the transport block, or perform a digital-to-analog conversion at 1824, resulting in a signal Based on this, analog beamforming may be performed at 1814 to transmit the transmission signal Y.

A remote unit utilizing the third functional partition 1840 may perform analog beamforming to receive signal Z at 1812. The remote unit may then perform analog-to-digital conversion at 1822, cyclic prefix removal and fast Fourier transfer at 1832, digital beamforming at 1842, and a resource element at 1844. Demapping may be performed, channel estimation and equalization may be performed at 1852, demodulation may be performed at 1854, descrambling may be performed at 1862, and decoding may be performed at 1864 to The transport block may contain symbols that the remote unit will use to generate signal Y. The remote unit may then perform resource element mapping at 1846 based on the symbols received in the transport block, perform an inverse fast Fourier transform and add a cyclic transpose at 1834, and digital-to-analog conversion at 1824. Alternatively, analog beamforming may be performed at 1814 based on the resulting signal to transmit the transmission signal Y.

A remote unit utilizing the fourth functional partition 1850 may perform analog beamforming to receive signal Z at 1812. The remote unit may then perform analog-to-digital conversion at 1822, cyclic prefix removal and fast Fourier transfer at 1832, digital beamforming at 1842, and a resource element at 1844. Demapping may be performed, channel estimation and equalization may be performed at 1852, demodulation may be performed at 1854, descrambling may be performed at 1862, and decoding may be performed at 1864 to The transport block may contain a codeword that the remote unit will use to generate signal Y. The remote unit may then perform modulation at 1856 based on the codewords received in the transport block, perform resource element mapping at 1846, and perform an inverse fast Fourier transform at 1834 and add a cyclic transpose. Alternatively, digital-analog conversion may be performed at 1824, or analog beamforming may be performed at 1814 based on the resulting signal to transmit the transmission signal Y.

A remote unit utilizing the fifth functional partition 1860 may perform analog beamforming to receive signal Z at 1812. The remote unit may then perform analog-to-digital conversion at 1822, cyclic prefix removal and fast Fourier transfer at 1832, digital beamforming at 1842, and a resource element at 1844. Demapping may be performed, channel estimation and equalization may be performed at 1852, demodulation may be performed at 1854, descrambling may be performed at 1862, and decoding may be performed at 1864 to A transport block for the received signal Z may be determined. The transport block for the received signal Z may include a transport block included in the payload of the transmitted signal Y. The remote unit may then perform encoding at 1866, scrambling at 1868, modulation at 1856, and resource elements at 1846 based on the transport blocks to be included in the payload of the transmitted signal Y. Mapping may be performed, an inverse fast Fourier transform may be performed at 1834 and a cyclic transpose may be added, a digital-to-analog conversion may be performed at 1824, or analog beamforming may be performed at 1814 based on the resulting signal. Transmission signal Y may also be transmitted.

In some aspects, the relaying operation of FIG. 18 may be a receiver-transparent relaying operation. Receiver transparent relaying operations may be relaying operations in which transmissions sent to a receiving wireless node do not require any additional processing by the receiver as a result of the relaying operation. For example, the receiving wireless node may be a UE, such as a legacy UE, that is not configured to support relaying operations, and the transmitted signal Y may be a PDSCH or PDCCH that the UE can process based on legacy methods. When the base station generates a signal Domain IQ samples) may be included to generate a legacy-compatible PDSCH or PDCCH. The transmitting wireless node may be a base station, or may relay messages originating from the base station.

19 is a diagram 1900 illustrating a relaying operation with multiple functional divisions for decoding incoming communications. Relaying operations may also be performed by a remote unit. The transmitting wireless node may transmit a signal X intended for the receiving wireless node to the remote unit. The remote unit may receive signal Z, which is signal X modified by the channel and by noise, and may utilize repetitive operations to generate signal Y based on signal Z. The remote unit may then transmit signal Y to the receiving wireless node.

A remote unit may include a receive chain and a transmit chain, and may utilize the receive chain and transmit chain to perform relaying operations. The remote unit may utilize the receive chain to process the received signal Z and the transmit chain to generate the transmit signal Y. The receive chain includes analog beamforming in 1912, analog-to-digital conversion in 1922, performing cyclic prefix removal and fast Fourier transform in 1932, digital beamforming in 1942, resource element demapping in 1944, channel estimation and equalization in 1952, and demodulation in 1954. , descrambling in 1962, and decoding in 1964. Transmit chain encodes in 1966, scrambling in 1968, modulation in 1956, layer mapping in 1957, precoding in 1958, resource element mapping in 1946, digital beamforming in 1948, performs inverse fast Fourier transform in 1934 and adds cyclic transpose, 1924 It may also include digital-to-analog conversion, and analog beamforming at 1914.

Relaying operations may also include functional division. The relaying operation illustrated in Figure 19 includes five functional divisions 1920, 1930, 1940, 1950, and 1960. In some aspects, the relaying operation may include all five functional divisions. However, the present disclosure is not limited thereto, and in some aspects, relaying operations may include any subset of the illustrated functional divisions, or may include other functional divisions.

A remote unit utilizing the first functional partition 1920 may perform analog beamforming to receive a signal at 1912. The remote unit may then perform analog-to-digital conversion at 1922 to determine a time domain IQ sample for the received signal Z. The remote unit may include time domain IQ samples for signal Z received in the transport block for signal Y. The remote unit may then perform encoding at 1966, scrambling at 1968, modulation at 1956, and resource element mapping at 1946 based on the transport block for signal Y. You can perform an inverse fast Fourier transform at 1934 and add a cyclic transpose, or you can perform a digital-to-analog conversion at 1924, and based on the resulting signal, perform analog beamforming at 1914 to obtain the transmit signal Y. You can also send it.

A remote unit utilizing the second functional partition 1930 may perform analog beamforming to receive signal Z at 1912. The remote unit may then perform analog-to-digital conversion at 1922 and perform a fast Fourier transfer at 1932 to determine a frequency domain IQ sample (e.g., tone) for the received signal Z. Fourier transfer can also be performed. The remote unit may include frequency domain IQ samples for signal Z received in the transport block for signal Y. The remote unit may then perform encoding at 1966, scrambling at 1968, modulation at 1956, and resource element mapping at 1946 based on the transport block for signal Y. You can perform an inverse fast Fourier transform at 1934 and add a cyclic transpose, or you can perform a digital-to-analog conversion at 1924, and based on the resulting signal, perform analog beamforming at 1914 to obtain the transmit signal Y. You can also send it.

A remote unit utilizing the third functional partition 1940 may perform analog beamforming to receive signal Z at 1912. The remote unit may then perform analog-to-digital conversion at 1922, cyclic prefix removal and fast Fourier transfer at 1932, digital beamforming at 1942, and a resource element at 1944. Demapping may be performed to determine the symbol for the received signal Z. The remote unit may include symbols for signal Z received in the transport block for signal Y. The remote unit may then perform encoding at 1966, scrambling at 1968, modulation at 1956, and resource element mapping at 1946 based on the transport block for signal Y. You can perform an inverse fast Fourier transform at 1934 and add a cyclic transpose, or you can perform a digital-to-analog conversion at 1924, and based on the resulting signal, perform analog beamforming at 1914 to obtain the transmit signal Y. You can also send it.

A remote unit utilizing the fourth functional division 1950 may perform analog beamforming to receive signal Z at 1912. The remote unit may then perform analog-to-digital conversion at 1922, cyclic prefix removal and fast Fourier transfer at 1932, digital beamforming at 1942, and a resource element at 1944. Demapping may be performed, channel estimation and equalization may be performed at 1952, and demodulation may be performed at 1954 to determine the codeword for the received signal Z. The remote unit receives the transport block for signal Y. It may also include a codeword for the signal Z. The remote unit may then perform encoding at 1966, scrambling at 1968, modulation at 1956, and resource element mapping at 1946 based on the transport block for signal Y. You can perform an inverse fast Fourier transform at 1934 and add a cyclic transpose, or you can perform a digital-to-analog conversion at 1924, and based on the resulting signal, perform analog beamforming at 1914 to obtain the transmit signal Y. You can also send it.

A remote unit utilizing the fifth functional partition 1960 may perform analog beamforming to receive signal Z at 1912. The remote unit may then perform analog-to-digital conversion at 1922, cyclic prefix removal and fast Fourier transfer at 1932, digital beamforming at 1942, and a resource element at 1944. Demapping may be performed, channel estimation and equalization may be performed at 1952, demodulation may be performed at 1954, descrambling may be performed at 1962, and decoding may be performed at 1964 to The remote unit may include a transport block for signal Z in the transport block for signal Y. The remote unit may then perform encoding at 1966, scrambling at 1968, modulation at 1956, and resource element mapping at 1946 based on the transport block for signal Y. You can perform an inverse fast Fourier transform at 1934 and add a cyclic transpose, or you can perform a digital-to-analog conversion at 1924, and based on the resulting signal, perform analog beamforming at 1914 to obtain the transmit signal Y. You can also send it.

In some aspects, the relaying operation of FIG. 19 may be a transmitter transparent relaying operation. Transmitter transparent relaying operation may be a relaying operation in which transmissions sent by a transmitting wireless node do not require any additional processing by the transmitting wireless node as a result of the relaying operation. For example, the transmitting wireless node may be a UE, such as a legacy UE that is not configured to support relaying operations, and the received signal Z may be a PUSCH or PUCCH, which the UE may generate based on legacy methods. The remote unit may extract information about the received signal Z (e.g., a transport block, codeword, symbol, frequency domain IQ sample, or time domain IQ sample) and include that information in the transmitted signal Y. . The base station may receive signal Y and utilize information extracted from signal Y to determine the content of the original PUSCH or PUCCH legacy compatible PDSCH or PDCCH. The receiving wireless node may be a base station, or may relay message Y to the base station.

20 is a communications flow diagram 2000 illustrating the operation of remote unit 2002 with variable operating modes. The first wireless node 2001 may transmit data to the second wireless node 2004 via the remote unit 2002. A wireless node may be a UE, base station, IAB node, other remote unit, or other similar wireless device. In some aspects, the first wireless node 2001 may be a base station and the second wireless node 2004 may be a UE. In some aspects, the first wireless node 2001 may be a UE and the second wireless node 2004 may be a base station. In some aspects, one or both of first wireless node 2004 and second wireless node 2004 may be an IAB node or other remote unit. In some aspects, both the first wireless node 2001 and the second wireless node 2004 may be UEs.

First wireless node 2001 may transmit a first signal 2010 to remote unit 2002, and remote unit 2002 may receive first signal 2010. The first signal 2010 may include data to be transmitted to the second wireless node 2004. As illustrated in 2020, remote unit 2002 may determine a mode of operation for processing first signal 2010 to generate a signal for transmission to second wireless node 2004.

In some aspects, the mode of operation may be determined based on whether the first signal 2010 is an uplink channel, such as PUSCH or PUCCH, or a downlink channel, such as PDSCH or PDCCH. In some aspects, the mode of operation may be determined based on whether the first signal 2010 is a control channel, such as PUCCH or PDCCH, or a data channel, such as PUSCH or PDSCH.

In some aspects, remote unit 2002 may be configured to use both relaying and repetitive operations. As illustrated at 2022, the remote unit 2002 determining the mode of operation may include determining whether to utilize relaying or repetitive operation to generate a signal to be conveyed to the second wireless node 2004. It may be possible.

In some aspects, the remote unit 2002 may decide to utilize a relaying operation if the first signal 2010 is a control channel and a repeating operation if the first signal 2010 is a data channel. . Repeating the data channel may support faster data transfer between the first wireless node 2001 and the second wireless node 2004 and allow the remote unit 2002 to communicate with the first wireless node 2001 and the second wireless node 2004. It may allow utilizing lower data rates for forward communications between nodes 2004. Repeating the data channel may also result in higher resource utilization because the remote unit 2002 may support full-duplex operation in repeating mode, but only half-duplex operation in relaying mode. Relaying the control channel may allow joint scheduling of both the remote unit 2002 and the receiving wireless node. For example, a single scheduling DCI may be transmitted to remote unit 2002. Remote unit 2002 may decode the DCI and retrieve scheduling information for remote unit 2002. The remote unit 2002 may then forward the DCI to the receiving wireless node, which may also decode the DCI and retrieve scheduling information.

In some aspects, the remote unit 2002 may decide to utilize a relaying operation if the first signal 2010 is a data channel and a repeating operation if the first signal 2010 is a control channel. there is. Relaying the data channel may achieve a better signal-to-noise ratio for the data channel, resulting in more reliable data transmission. Repeating the control channel can also allow faster control of wireless nodes.

In some aspects, remote unit 2002 may be configured to use operating modes with multiple functional divisions. The operation mode with multiple functional divisions may be repetitive operation or relaying operation. In some aspects, remote unit 2002 may be configured to use both repetitive and relaying operations, and one or both operations may include functional division. As illustrated at 2024, the remote unit 2002 determining the mode of operation may include determining which functional partition to utilize to generate a signal to convey to the second wireless node 2004.

In some aspects, remote unit 2002 utilizes functional partitioning with a higher level of processing (e.g., more steps in the transmit and/or receive chain) when the first signal 2010 is a data channel. You may decide to, or if the first signal 2010 is a control channel, utilize functional splitting with a lower level of processing (e.g., having fewer steps in the transmit and/or receive chain). there is. For example, remote unit 2002 may determine a functional split for a data channel that has a higher level of processing than the functional split that remote unit 2002 determines for a control channel. Utilizing higher levels of processing for data may improve the signal-to-noise ratio for the data channel, allowing for more reliable data transmission. Utilizing lower level processing for the control channel may allow for faster control of wireless nodes.

In some aspects, remote unit 2002 utilizes functional partitioning with a higher level of processing (e.g., more steps in the transmit and/or receive chain) when the first signal 2010 is a control channel. You may decide to, or if the first signal 2010 is a data channel, utilize functional splitting with a lower level of processing (e.g., having fewer steps in the transmit and/or receive chain). there is. For example, remote unit 2002 may determine a functional split for a data channel with a lower level of processing than the functional split that remote unit 2002 determines for a control channel. Utilizing lower level processing for data may support faster data transfer between wireless nodes. In some aspects, higher level processing for control channels may include decoding, and utilizing higher level processing for control channels may enable joint scheduling of both the remote unit 2002 and the receiving wireless node. It may be possible.

In some aspects, the mode of operation, including whether to utilize a repeating mode or a relaying mode, and which functional partitioning to utilize, may be determined based on the QoS requirements corresponding to the first signal 2010. For example, repeating mode may provide lower latency and higher data rates than relaying mode, and functional partitioning with lower levels of processing may provide lower latency and higher data rates than functional partitioning with higher levels of processing. Rates can also be provided. The remote unit 2002 may determine a latency QoS requirement corresponding to the first signal 2010 and select an operation mode that satisfies the latency QoS requirement. Remote unit 2002 may determine data rate QoS requirements corresponding to first signal 2010 and select an operation mode that satisfies the data rate QoS requirements. In another example, a relaying mode may provide a higher SINR than a repeating mode, and a functional partition with a higher level of processing may provide a higher SINR than a functional partition with a lower level of processing. Remote unit 2002 may determine SINR QoS requirements corresponding to first signal 2010 and select an operation mode that satisfies the SINR QoS requirements.

In some aspects, the mode of operation, including whether to utilize a repeating mode or a relaying mode, and including which functional division to utilize, may vary depending on the channel quality of the first link between the remote unit 2002 and the first wireless node 2001. may be determined based on the channel quality of the second link between the remote unit 2002 and the second wireless node 2004, or based on the channel quality of both links. For example, remote unit 2002 may determine the channel quality of the first link. If the channel quality of the first link is high (e.g., exceeds a threshold), remote unit 2002 may decide to use a repetitive operation mode and/or an operation mode involving a lower functionality partition. If the channel quality of the first link is low (e.g., does not exceed a threshold), remote unit 2002 may decide to use a relaying mode of operation and/or an operation mode involving higher functionality division. It may be possible.

As another example, remote unit 2002 may determine the channel quality of the second link. Remote unit 2002 may have a target end-to-end channel quality. The end-to-end channel quality may be a function of the first link channel quality and the second link channel quality. The remote unit 2002 may determine a target first link channel quality based on the determined second link channel quality and the target end-to-end channel quality and change the operating mode to a first link channel quality that meets or exceeds the target first link channel quality. It may be determined that it is the mode of operation that results in quality.

As a further example, remote unit 2002 may determine an end-to-end channel quality for transmission between first wireless node 2001 and second wireless node 2004 based on the first link and the second link. If the end-to-end channel quality is high (e.g., exceeds a threshold), remote unit 2002 may decide to use a repetitive operation mode and/or an operation mode involving lower functionality partitioning. If the end-to-end channel quality is low (e.g., does not exceed a threshold), remote unit 2002 may decide to use a relaying mode of operation and/or an operation mode that includes higher functionality partitioning. .

In some aspects, first signal 2010 may include mode commands. The mode instructions may identify an operating mode to use for processing the first signal 2010, and the remote unit 2002 may decide to utilize the operating mode identified in the mode instructions.

In some aspects, remote unit 2002 may be configured to use both transmitter transparent relaying operations and receiver transparent relaying operations. As illustrated at 2026, the remote unit 2002, which determines the mode of operation, determines whether to utilize a transmitter transparent relaying operation or a receiver transparent relaying operation to generate a signal for delivery to the second wireless node 2004. It may also be included. In some aspects, remote unit 2002 may determine whether to utilize transmitter transparent relaying operation or receiver transparent relaying operation based on whether first signal 2010 is an uplink or downlink channel. For example, in some aspects, the first wireless node 2001 may be a UE and may not be configured to support a relaying mode of operation, while the second wireless node 2004 may be a base station and may not be configured to support a relaying mode of operation. It can also be configured to support. The remote unit 2002 may decide to utilize transmitter transparent relaying operation based on a determination that the first signal 2010 is an uplink channel. In some aspects, the second wireless node 2004 may be a UE and may not be configured to support a relaying mode of operation, while the first wireless node 2001 may be a base station and may be configured to support a relaying mode of operation. It may be possible. The remote unit 2002 may decide to utilize receiver transparent relaying operation based on a determination that the first signal 2010 is a downlink channel.

In some aspects, remote unit 2002 may determine the mode of operation at 2020 based on mode configuration 2008. The remote unit 2002 may receive the mode configuration 2008 from a control unit, such as a base station. Mode configuration 2008 may instruct remote unit 2002 as to which mode to utilize. In some aspects, mode configuration 2008 may instruct remote unit 2002 to utilize a particular operating mode for all forwarded communications. In some aspects, mode configuration 2008 configures the remote unit 2002 to utilize a particular mode of operation for a particular communication or for a particular set of communications (e.g., for all communications from a particular UE or for all communications to a particular UE). ) can also be commanded. In some aspects, the control unit may be the first wireless node 2001. In some aspects, the control unit may be a second wireless node 2004. In some aspects, the control unit may be a separate control unit 2006 (e.g., a wireless device such as a base station that does not transmit the first signal 2010 or does not receive the second signal 2030). there is). For example, separate control unit 2006 may be a base station, and first wireless node 2001 and second wireless node 2004 may be UEs that communicate via remote unit 2002 via sidelink communications. (e.g., may not transmit to or receive from a base station).

In some aspects, the control unit, which may be the first wireless node 2001, the second wireless node 2004, or a separate control unit 2006, configures an operation mode for the remote unit 2002 as illustrated in 2007. You can decide. The control unit may generate the mode configuration 2008 based on the operation mode determined in 2007. The remote unit 2002 that determines the operating mode at 2020 may read the operating mode determined by the control unit from the mode configuration 2008.

In some aspects, the control unit may determine the mode of operation at 2007 based on whether the first signal 2010 is an uplink or downlink channel. In some aspects, the control unit may determine the mode of operation at 2007 based on whether the first signal 2010 is a control channel or a data channel. The control unit generates the first signal 2010 based on the control unit generating the first signal 2010 (e.g. if the control unit is the first wireless node 2001) or based on the scheduling of the first wireless signal 2010 (e.g. (e.g., if the control unit is a separate control unit 2006), or based on signaling received from a wireless device scheduling the first wireless signal 2010, the first signal 2010 may be connected to an uplink channel or a downlink channel. You may also know whether it is a channel, a control channel, or a data channel.

In determining the mode of operation at 2007, the control unit may determine whether to configure the remote unit 2002 to use relaying operation or to use repetitive operation. The control unit may decide to configure the remote unit 2002 to use a relaying operation if the first signal 2010 is a control channel, or to configure the remote unit 2002 to use a repeating operation if the first signal 2010 is a data channel. You may decide to construct unit 2002. The control unit may decide to configure the remote unit 2002 to use a relaying operation if the first signal 2010 is a data channel, or to configure the remote unit 2002 to use a repeating operation if the first signal 2010 is a control channel. You may decide to construct unit 2002.

In determining the mode of operation at 2007, the control unit may decide to configure the remote unit 2002 to use a particular functional division. The control unit 2002 may direct the remote unit ( 2002), if the first signal 2010 is a control channel, utilizing a functional split with a lower level of processing (e.g., having fewer steps in the transmit and/or receive chain). You may decide to configure remote unit 2002 to do so. The control unit 2002 may be configured to utilize a functional division with a higher level of processing (e.g., with more steps in the transmit and/or receive chain) when the first signal 2010 is a control channel. 2002), if the first signal 2010 is a data channel, utilizing a functional split with a lower level of processing (e.g., having fewer steps in the transmit and/or receive chain). You may decide to configure remote unit 2002 to do so.

In some aspects, the control unit includes determining whether to configure the remote unit 2002 to utilize a repeating mode or a relaying mode and which functional division to utilize based on QoS requirements corresponding to the first signal 2010. A mode of operation may be determined at 2007, including determining whether to configure remote unit 2002 to do so. For example, the control unit may determine a latency QoS requirement corresponding to the first signal 2010, may determine an operation mode that satisfies the latency QoS requirement, and may determine a data rate QoS requirement corresponding to the first signal 2010. may determine requirements and may determine an operation mode that satisfies the data rate QoS requirements, or may determine SINR QoS requirements corresponding to the first signal 2010 and determine an operation mode that satisfies the SINR QoS requirements. It may be possible.

In some aspects, the control unit is configured to control the second link between the remote unit 2002 and the second wireless node 2004 based on the channel quality of the first link between the remote unit 2002 and the first wireless node 2001. determining whether to configure the remote unit 2002 to utilize a repeating mode or a relaying mode, based on the channel quality of the link, or based on the channel quality of both links, and configuring the remote unit 2002 to utilize which functional division; You can also determine the operating mode in 2007, including deciding whether to configure 2002). The control unit may decide to configure the remote unit 2002 in an operating mode based on one or more of these channel qualities that may or may not exceed a threshold, or achieve a target channel quality based on one or more of the determined channel qualities. You may decide to configure the remote unit 2002 in a mode of operation.

In determining the mode of operation at 2007, the control unit may determine whether to configure remote unit 2002 to use transmitter transparent relaying operation or receiver transparent relaying operation. The control unit may decide to configure the remote unit 2002 to use transmitter transparent relaying operation if the first signal 2010 is an uplink channel and receiver transparent relaying operation if the first signal 2010 is a downlink channel. You may decide to configure remote unit 2002 to use relaying operation.

21 is a communication flow diagram 2100 illustrating a remote unit 2102 utilizing a transmitter transparent relay mode and a receiver transparent relay mode. First wireless device 2101 and second wireless device 2104 may communicate via remote unit 2102. First wireless device 2101 may not be configured to support relaying operations of remote unit 2102. The second wireless device 2104 may be configured to support relaying operations of the remote unit 2102. For example, first wireless device 2101 may be a UE, such as a legacy UE, and second wireless device 2104 may be a base station.

First wireless device 2101 may decide to uplink data to second wireless device 2104. For example, the second wireless device 2104 may schedule the first wireless device 2101 to transmit PUSCH or PUCCH. The second wireless device 2104 may schedule the first wireless device 2101 to transmit PUSCH or PUCCH to the remote unit 2102. The first wireless device 2101 may transmit PUSCH or PUCCH as a first signal 2110 to the remote unit 2102. Remote unit 2102 may receive first signal 2110.

As illustrated at 2120, remote unit 2102 may utilize a transmitter transparent relay mode to generate second signal 2130 based on first signal 2110. For example, remote unit 2102 may utilize the relay mode described above with respect to FIG. 19. In some aspects, a transmitter transparent relay mode may include multiple functional partitions, and remote unit 2102 may select a functional partition as described above with respect to 2020 and 2024. The second signal may include information about the first signal 2110 (e.g., a transport block, codeword, symbol, frequency domain IQ sample, or time domain IQ sample). Remote unit 2102 may transmit a second signal 2130 to a second wireless device 2104, and the second wireless device 2104 may receive the second signal 2130. As illustrated in 2140, the second wireless device 2104 uses the first signal 2110 or the first signal 2110 based on information about the first signal 2110 included in the second signal 2130. You can also decide on the payload.

The second wireless device 2104 may decide to downlink data to the first wireless device 2101. As illustrated at 2150, the second wireless device 2104 may generate a third signal 2160 based on data to be downlinked to the first wireless device 2101. The third signal 2160 may include relay information. The relay information is information (e.g., a transport block, codeword, symbol, frequency domain IQ sample, or time) for the remote unit 2102 to utilize to generate a fourth signal to transmit to the first wireless device 2101. may also include a domain IQ sample). The second wireless device 2104 may transmit a third signal 2160 to the remote unit 2102, and the remote unit 2102 may receive the third signal 2160.

As illustrated in 2170, remote unit 2102 may utilize a receiver transparent relay mode to generate a fourth signal 2180 based on the third signal 2160 and the relay information contained in the third signal 2160. It may be possible. For example, remote unit 2102 may utilize the relay mode described above with respect to FIG. 18. In some aspects, a receiver transparent relay mode may include multiple functional partitions, and remote unit 2102 may select a functional partition as described above with respect to 2020 and 2024. Using the relay information, remote unit 2102 may generate a PDSCH or PDCCH to transmit to first wireless device 2101 and send the PDSCH or PDCCH to first wireless device 2101 as a fourth signal 2180. You can also send it. The first wireless device 2101 may receive the fourth signal 2180 and decode the fourth signal 2180 (e.g., based on a legacy PDSCH or PDCCH processing method).

22 is a flow chart 2200 of a method of wireless communication in a remote unit. The method may be performed by a remote unit (e.g., remote unit 1620, 1670, 2002, 2102).

At 2202, the remote unit receives a first signal from a first wireless device.

At 2204, the remote unit determines an operating mode for processing the first signal. Determining a mode of operation may include selecting a mode from a relaying mode and a repeating mode. Determining the mode of operation may include determining the functional division for processing the first signal. Determining the mode of operation may include determining the functional division for generating the second signal. Determining the mode of operation may include selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

The mode of operation may be determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. The operating mode may be determined based on quality of service requirements associated with the first or second signal. The mode of operation may be determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device. The mode of operation may be determined based on whether the first signal is a data channel or a control channel.

In some aspects, a remote unit may receive mode configuration from a control entity. The operating mode may be determined based on the mode configuration. In some aspects, the first signal may include mode instructions and the operating mode may be determined based on the mode instructions.

At 2206, the remote unit processes the first signal based on the mode of operation to generate a second signal.

At 2208, the remote unit transmits a second signal to the second wireless device.

23 is a flow chart 2300 of a method of wireless communication in a wireless device. The method may be performed by a wireless device (eg, wireless device 2001, 2004, 2102, 2104).

At 2302, the wireless device determines to transmit to the remote unit a first transmission intended for a second wireless device.

At 2304, the wireless device generates a first transmission, the first transmission including information for generating a second transmission, and the information for generating the second transmission based on an operating mode of the remote unit. The information may include time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport block for generating the second transmission. In some aspects, the wireless device may be a base station, and the first transmission may be a downlink channel and the second transmission may be a downlink channel.

At 2306, the wireless device transmits a first transmission to the remote unit.

Figure 24 is a flow chart 2400 of a method of wireless communication in a wireless device. The method may be performed by a wireless device (eg, wireless device 2001, 2004, 2102, 2104).

At 2402, the wireless device receives a second transmission from the remote unit, and the second transmission includes information regarding the first transmission transmitted by the second wireless device to the remote unit. The information may include time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport block of the first transmission. In some aspects, the wireless device may be a base station, the first transmission may be an uplink channel, and the second transmission may be an uplink channel.

At 2404, the wireless device determines the first transmission based on the second transmission and information regarding the first transmission.

Figure 25 is a flow chart 2500 of a wireless communication method in a base station. The method may be performed by a base station (eg, control unit 2006).

At 2502, the base station determines a mode of operation for the remote unit, the mode of operation allowing the remote unit to process a first signal received from the first wireless device to generate a second signal for transmission to the second wireless device. It is configured for;

Determining a mode of operation may include selecting a mode from a relaying mode and a repeating mode. Determining the mode of operation may include determining the functional division for processing the first signal. Determining the mode of operation may include determining the functional division for generating the second signal. Determining the mode of operation may include selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

The mode of operation may be determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. The operating mode may be determined based on quality of service requirements associated with the first or second signal. The mode of operation may be determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device. The mode of operation may be determined based on whether the first signal is a data channel or a control channel.

At 2504, the base station transmits the mode of operation to the remote unit.

FIG. 26 is a diagram 2600 that illustrates an example hardware implementation for device 2602. Device 2602 is a remote unit and includes a baseband unit 2604. Baseband unit 2604 may communicate with first wireless device 2682 and second wireless device 2684 via a cellular RF transceiver. Baseband unit 2604 may include computer-readable media/memory. Baseband unit 2604 is responsible for general processing, including execution of software stored on computer-readable media/memory. When executed by baseband unit 2604, the software causes baseband unit 2604 to perform various functions described above. Computer-readable media/memory may also be used to store data that is manipulated by baseband unit 2604 when executing software. Baseband unit 2604 further includes a receive component 2630, a communications manager 2632, and a transmit component 2634. Communications manager 2632 includes one or more illustrated components. Components within communications manager 2632 may be stored on a computer-readable medium/memory and/or may be configured as hardware within baseband unit 2604.

Communication manager 2632 includes a first signal component 2640 that receives a first signal from a first wireless device 2682, for example, as described with respect to 2202 in FIG. 22. Communications manager 2632 further includes an operating mode component 2642 that determines an operating mode for processing the first signal, e.g., as described with respect to 2204 of FIG. 22 . Communications manager 2632 further includes a processing component 2644 that processes the first signal based on the mode of operation to generate a second signal, e.g., as described with respect to 2206 in FIG. 22 . Communication manager 2632 further includes a second signal component 2646 that transmits a second signal to a second wireless device 2684, e.g., as described with respect to 2208 in FIG. 22.

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of FIG. 22. Thus, each block in the above-described flowchart of FIG. 22 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

In one configuration, the apparatus 2602, and in particular the baseband unit 2604, includes means for receiving a first signal from a first wireless device; means for determining a mode of operation for processing the first signal; means for processing the first signal based on the mode of operation to generate a second signal; and means for transmitting a second signal to a second wireless device. The above-described means may be one or more of the above-described components of apparatus 2602 configured to perform the functions mentioned by the above-described means. As described above, device 2602 may include a TX processor 316, RX processor 370, and controller/processor 375. Accordingly, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions listed by the above-described means.

FIG. 27 is a diagram 2700 that illustrates an example hardware implementation for device 2702. Apparatus 2702 is a wireless device, such as a UE or base station, and includes a baseband unit 2704. Baseband unit 2704 may communicate with remote unit 2786 via a cellular RF transceiver. Baseband unit 2704 may include computer-readable media/memory. Baseband unit 2704 is responsible for general processing, including execution of software stored on computer-readable media/memory. When executed by baseband unit 2704, the software causes baseband unit 2704 to perform various functions described above. Computer-readable media/memory may also be used to store data that is manipulated by baseband unit 2704 when executing software. Baseband unit 2704 further includes a receive component 2730, a communications manager 2732, and a transmit component 2734. Communications manager 2732 includes one or more illustrated components. Components within communications manager 2732 may be stored on a computer-readable medium/memory and/or may be configured as hardware within baseband unit 2704.

Communications manager 2732 includes a transmission decision component 2740 that determines to transmit the first transmission for the second wireless device to the remote unit, e.g., as described with respect to 2302 in FIG. 23 . Communication manager 2732 further includes a transmission generation component 2742 that generates a first transmission, as described with respect to 2304 of FIG. 23, wherein the first transmission includes information for generating a second transmission; The second transmission is based on the operating mode of the remote unit. Transmission component 2734 sends a first transmission to remote unit 2786, for example, as described with respect to 2306 in FIG. 23.

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of Figure 23. Thus, each block in the above-described flowchart of FIG. 23 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

In one configuration, the apparatus 2702, and in particular the baseband unit 2704, includes means for determining to transmit a first transmission intended for a second wireless device to a remote unit; means for generating a first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. means for doing so; and means for transmitting the first transmission to the remote unit. The above-described means may be one or more of the above-described components of apparatus 2702 configured to perform the functions mentioned by the above-described means. As described above, device 2702 may include a TX processor 316, RX processor 370, and controller/processor 375. Accordingly, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions listed by the above-described means.

FIG. 28 is a diagram 2800 that illustrates an example hardware implementation for device 2802. Apparatus 2802 is a wireless device, such as a UE or base station, and includes a baseband unit 2804. Baseband unit 2804 may communicate with remote unit 2886 via a cellular RF transceiver. Baseband unit 2804 may include computer-readable media/memory. Baseband unit 2804 is responsible for general processing, including execution of software stored on computer-readable media/memory. When executed by baseband unit 2804, the software causes baseband unit 2804 to perform various functions described above. Computer-readable media/memory may also be used to store data that is manipulated by baseband unit 2804 when executing software. Baseband unit 2804 further includes a receiving component 2830, a communications manager 2832, and a transmitting component 2834. Communications manager 2832 includes one or more illustrated components. Components within communications manager 2832 may be stored on a computer-readable medium/memory and/or may be configured as hardware within baseband unit 2804.

Communications manager 2832 includes a second transmission receiving component 2840 that receives a second transmission from a remote unit, e.g., as described with respect to 2402 in FIG. 24, wherein the second transmission receives a second transmission. Contains information regarding the first transmission sent by the wireless device to the remote device 2886. Communications manager 2832 includes a first transmission decision component 2842 that determines the first transmission based on the second signal and information regarding the first signal, e.g., as described with respect to 2404 in FIG. 24 . Includes more.

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of FIG. 24. Thus, each block in the above-described flowchart of FIG. 24 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

In one configuration, the apparatus 2802, and in particular the baseband unit 2804, includes means for receiving a second transmission from a remote unit, wherein the second transmission is a first transmission transmitted by the second wireless device to the remote unit. means for receiving the second transmission, comprising information about; and means for determining the first transmission based on information regarding the second transmission and the first transmission. The above-described means may be one or more of the above-described components of apparatus 2802 configured to perform the functions mentioned by the above-described means. As described above, device 2802 may include a TX processor 316, RX processor 370, and controller/processor 375. Accordingly, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions listed by the above-described means.

FIG. 29 is a diagram 2900 that illustrates an example hardware implementation for device 2902. Device 2902 is a BS and includes a baseband unit 2904. Baseband unit 2904 may communicate with remote unit 2986 via a cellular RF transceiver. Baseband unit 2904 may include computer-readable media/memory. Baseband unit 2904 is responsible for general processing, including execution of software stored on computer-readable media/memory. When executed by baseband unit 2904, the software causes baseband unit 2904 to perform various functions described above. Computer-readable media/memory may also be used to store data that is manipulated by baseband unit 2904 when executing software. Baseband unit 2904 further includes a receive component 2930, a communications manager 2932, and a transmit component 2934. Communications manager 2932 includes one or more illustrated components. Components within communications manager 2932 may be stored on a computer-readable medium/memory and/or may be configured as hardware within baseband unit 2904. Baseband unit 2904 may be a component of BS 310 and may include memory 376, and/or at least one of TX processor 316, RX processor 370, and controller/processor 375. It may be possible.

Communications manager 2932 includes a mode determining component 2940 that determines an operating mode for remote unit 2986, as described with respect to 2502 of FIG. 25, wherein the operating mode is such that the remote unit is connected to a second wireless device. A configuration for processing a first signal received from a first wireless device to generate a second signal for transmission to the wireless device. Communications manager 2932 further includes a mode transmitting component 2942 that transmits the operating mode to the remote unit 2986, e.g., as described with respect to 2504 in FIG. 25.

The apparatus may include additional components that perform each of the blocks of the algorithm in the above-described flowchart of Figure 25. Thus, each block in the above-described flowchart of FIG. 25 may be performed by a component, and the apparatus may include one or more of such components. The components are specifically configured to perform the recited processes/algorithms, are implemented by a processor configured to perform the recited processes/algorithms, are stored in a computer-readable medium for implementation by the processor, or some combination thereof. It may be one or more hardware components.

In one configuration, device 2902, and particularly baseband unit 2904, is a means for determining a mode of operation for a remote unit, wherein the mode of operation is such that the remote unit transmits a second signal for transmission to a second wireless device. means for determining the mode of operation, the means configured for processing a first signal received from a first wireless device to generate a first signal; and means for transmitting the mode of operation to the remote unit. The above-described means may be one or more of the above-described components of device 2902 configured to perform the functions mentioned by the above-described means. As described above, device 2902 may include a TX processor 316, RX processor 370, and controller/processor 375. Accordingly, in one configuration, the above-described means may be a TX processor 316, RX processor 370, and controller/processor 375 configured to perform the functions listed by the above-described means.

It is understood that the specific order or scheme of blocks in the disclosed processes/flowcharts is an illustration of example approaches. It is understood that, based on design preferences, the specific order or organization of blocks in processes/flowcharts may be rearranged. Additionally, some blocks may be combined or omitted. The accompanying method claims present elements of various blocks in a sample order and are not intended to be limiting to the particular order or scheme presented.

The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Accordingly, the claims are not intended to be limited to the aspects set forth herein, but are to be given full scope consistent with the literal claims, wherein references to elements in the singular are "one" or "one" unless explicitly stated so. and is not intended to mean “only one” but rather “one or more.” The term “exemplary” is used herein to mean “serving as an example, illustration, or illustration.” Any embodiment described herein as “exemplary” is not necessarily preferred over other embodiments. or advantageously. Unless clearly stated otherwise, the term "some" refers to one or more: "at least one of A, B, or C", "one or more of A, B, or C" Combinations such as “at least one of A, B, and C”, “one or more of A, B, and C”, and “A, B, C, or any combination thereof” refer to A, B, and/ or any combination of C, and may include multiples of A, multiples of B, or multiples of C. Specifically, “at least one of A, B, or C,” “A, B, or one or more of C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof." A alone, B alone, C alone, A and B, A and C, B and C, or A and B and C

and any such combinations may include one or more members or members of A, B, or C. All structural and functional equivalents to elements of the various aspects described throughout this disclosure, known or later known to those skilled in the art, are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be endorsed to the public regardless of whether such disclosure is explicitly recited in the claims. The words "module", "mechanism", "element", "device", etc. may not be substitutes for the word "means". Therefore, claim elements should not be construed as means plus function unless the element is explicitly recited using the phrase “means for.”

Implementation examples are described in the following numbered sections: The following examples are illustrative only and may be combined with aspects of other embodiments or teachings described herein without limitation.

One. 1. A method of wireless communication in a remote unit, comprising: receiving a first signal from a first wireless device; determining a mode of operation for processing the first signal; processing the first signal based on the mode of operation to generate a second signal; and transmitting a second signal to a second wireless device.

2. The method of clause 1, wherein determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode.

3. The method of any of clauses 1-2, wherein determining a mode of operation includes determining a functional partition for processing the first signal.

4. The method of any of clauses 1-3, wherein determining a mode of operation includes determining a functional partition for generating the second signal.

5. The method of any of clauses 1-4, wherein determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

6. The method of any of clauses 1-5, wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

7. The method of any of clauses 1-6, wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal.

8. The method of any of clauses 1-7, wherein the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device. A method of wireless communication.

9. The method of any of clauses 1-8, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel.

10. The method of any of clauses 1-9, further comprising receiving a mode configuration from a control entity, wherein the mode of operation is determined based on the mode configuration.

11. The method of any of clauses 1-10, wherein the first signal includes mode commands and the operating mode is determined based on the mode commands.

12. An apparatus for wireless communication in a remote unit, comprising: means for receiving a first signal from a first wireless device; means for determining a mode of operation for processing the first signal; means for processing the first signal based on the mode of operation to generate a second signal; and means for transmitting the second signal to a second wireless device.

13. A device for wireless communication in a remote unit, comprising: memory; and at least one processor coupled to the memory, the at least one processor configured to: receive a first signal from a first wireless device; determine an operating mode for processing the first signal; processing the first signal based on the mode of operation to generate a second signal; An apparatus for wireless communication, configured to transmit a second signal to a second wireless device.

14. The apparatus of claim 13, wherein determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode.

15. The apparatus of clauses 13-14, wherein determining the mode of operation includes determining a functional partition for processing the first signal.

16. The device of clauses 13-15, wherein determining the mode of operation includes determining the functional division for generating the second signal.

17. The device of clause 13-16, wherein determining the mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

18. The apparatus of clause 1-17, wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

19. The device of clauses 13-18, wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal.

20. The method of clauses 13-19, wherein the mode of operation is determined based on the first channel quality associated with the communication link between the remote unit and the first radio or the second channel quality associated with the communication link between the remote unit and the second wireless device. A device for wireless communication.

21. The device of clause 13-20, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel.

22. The apparatus of clauses 13-21, further comprising receiving a mode configuration from a control entity, wherein the mode of operation is determined based on the mode configuration.

23. The device of clauses 13-22, wherein the first signal includes mode commands and the operating mode is determined based on the mode commands.

24. A non-transitory computer-readable medium storing computer-executable code for wireless communication at a remote unit, wherein the code, when executed by a processor, causes the processor to perform the method of any of clauses 1-11. Transient computer-readable media.

25. A method of wireless communication in a wireless device, comprising: determining to transmit a first transmission intended for a second wireless device to a remote unit; generating a first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. step; and transmitting the first transmission to a remote unit.

26. The method of clause 25, wherein the wireless device is a base station, the first transmission is a downlink channel, and the second transmission is a downlink channel.

27. The method of clauses 25-26, wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or a transport block for generating the second transmission.

28. Apparatus for wireless communication in a wireless device, comprising: means for determining to transmit a first transmission intended for a second wireless device to a remote unit; means for generating a first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. method; and means for transmitting the first transmission to a remote unit.

29. An apparatus for wireless communication in a wireless device, comprising: memory; and at least one processor coupled to the memory, wherein the at least one processor determines to send a first transmission for a second wireless device to a remote unit; generating a first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit; An apparatus for wireless communication, configured to transmit a first transmission to a remote unit.

30. The apparatus of clause 29, wherein the wireless device is a base station, the first transmission is a downlink channel, and the second transmission is a downlink channel.

31. The apparatus of clauses 29-30, wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or a transport block for generating the second transmission.

32. A non-transitory computer-readable medium storing computer-executable code for wireless communication in a wireless device, wherein the code, when executed by a processor, causes the processor to perform the method of any of clauses 25-27. Transient computer-readable media.

33. A method of wireless communication in a wireless device, comprising receiving a second transmission from a remote unit, the second transmission comprising information regarding the first transmission transmitted by the second wireless device to the remote unit. receiving a second transmission; and determining the first transmission based on information regarding the second transmission and the first transmission.

34. The method of clause 33, wherein the wireless device is a base station, the first transmission is an uplink channel, and the second transmission is an uplink channel.

35. The method of clauses 33-34, wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks of the first transmission.

36. Apparatus for wireless communication in a wireless device, comprising means for receiving a second transmission from a remote unit, the second transmission comprising information regarding the first transmission transmitted by the second wireless device to the remote unit. means for receiving a second transmission; and means for determining the first transmission based on information regarding the second transmission and the first transmission.

37. An apparatus for wireless communication in a wireless device, comprising: memory; and at least one processor coupled to the memory, wherein the at least one processor receives a second transmission from the remote unit, wherein the second transmission is a first transmission transmitted by the second wireless device to the remote unit. receive the second transmission, comprising information about; An apparatus for wireless communication, configured to determine a first transmission based on information regarding the second transmission and the first transmission.

38. The apparatus of clause 37, wherein the wireless device is a base station, the first transmission is an uplink channel, and the second transmission is an uplink channel.

39. The apparatus of clauses 37-38, wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks of the first transmission.

40. A non-transitory computer-readable medium storing computer-executable code for wireless communication in a wireless device, wherein the code, when executed by a processor, causes the processor to perform the method of any of clauses 33-35. Transient computer-readable media.

41. A method of wireless communication in a base station, comprising: determining a mode of operation for a remote unit, wherein the mode of operation comprises: the remote unit receiving from a first wireless device to generate a second signal for transmission to a second wireless device; determining the operating mode, which is configured for processing a first signal; and transmitting the mode of operation to a remote unit.

42. The method of clause 41, wherein determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode.

43. The method of clauses 41-42, wherein determining a mode of operation includes determining a functional partition for processing the first signal.

44. The method of clauses 41-43, wherein determining a mode of operation includes determining a functional partition for generating the second signal.

45. The method of clauses 41-44, wherein determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

46. The method of clauses 41-45, wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

47. The method of clauses 41-46, wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal.

48. The method of clauses 41-47, wherein the mode of operation is determined based on the first channel quality associated with the communication link between the remote unit and the first wireless or the second channel quality associated with the communication link between the remote unit and the second wireless device. A method of wireless communication.

49. The method of clauses 41-48, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel.

50. Apparatus for wireless communication in a base station, comprising means for determining a mode of operation for a remote unit, wherein the mode of operation is such that the remote unit receives from a first wireless device to generate a second signal for transmission to a second wireless device. means for determining the mode of operation, arranged for processing a received first signal; and means for transmitting the mode of operation to a remote unit.

51. A device for wireless communication in a base station, comprising: memory; and at least one processor coupled to the memory, wherein the at least one processor determines a mode of operation for the remote unit, wherein the mode of operation causes the remote unit to transmit a second signal for transmission to the second wireless device. determine the mode of operation, configured to process a first signal received from a first wireless device to generate: A device for wireless communication configured to transmit a mode of operation to a remote unit.

52. The apparatus of clause 51, wherein determining the mode of operation includes selecting a mode from a relaying mode and a repeating mode.

53. The apparatus of clauses 51-52, wherein determining the mode of operation includes determining a functional partition for processing the first signal.

54. The device of clauses 51-53, wherein determining the mode of operation includes determining the functional division for generating the second signal.

55. The apparatus of clauses 51-54, wherein determining the mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode.

56. The apparatus of clauses 51-55, wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station.

57. The device of clauses 51-56, wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal.

58. The method of clauses 51-57, wherein the mode of operation is determined based on the first channel quality associated with the communication link between the remote unit and the first wireless or the second channel quality associated with the communication link between the remote unit and the second wireless device. A device for wireless communication.

59. The apparatus of clauses 51-58, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel.

60. A non-transitory computer-readable medium storing computer-executable code for wireless communication in a base station, wherein the code, when executed by a processor, causes the processor to perform the method of any of clauses 41-49. Computer-readable media.

Claims (60)

A method of wireless communication in a remote unit, comprising:
Receiving a first signal from a first wireless device;
determining an operating mode for processing the first signal;
processing the first signal based on the operating mode to generate a second signal; and
Transmitting the second signal to a second wireless device
A method of wireless communication, including. According to claim 1,
Wherein determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode. According to claim 1,
wherein determining a mode of operation includes determining a functional partition for processing the first signal. According to claim 1,
and determining a mode of operation includes determining a functional partition for generating the second signal. According to claim 1,
wherein determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode. According to claim 5,
wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. According to claim 1,
Wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal. According to claim 1,
wherein the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device. method. According to claim 1,
The method of wireless communication, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel. According to claim 1,
A method of wireless communication further comprising receiving a mode configuration from a control entity, wherein the operating mode is determined based on the mode configuration. According to claim 1,
wherein the first signal includes mode commands and the operating mode is determined based on the mode commands. A device for wireless communication in a remote unit, comprising:
means for receiving a first signal from a first wireless device;
means for determining a mode of operation for processing the first signal;
means for processing the first signal based on the mode of operation to generate a second signal; and
Means for transmitting the second signal to a second wireless device
A device for wireless communication, including. A device for wireless communication in a remote unit, comprising:
Memory; and
At least one processor coupled to the memory, wherein the at least one processor
receive a first signal from a first wireless device;
determine an operating mode for processing the first signal;
processing the first signal based on the operating mode to generate a second signal;
An apparatus for wireless communication, configured to transmit the second signal to a second wireless device. According to claim 13,
wherein determining the mode of operation includes selecting a mode from a relaying mode and a repeating mode. According to claim 13,
wherein determining the mode of operation includes determining a functional partition for processing the first signal. According to claim 13,
wherein determining the mode of operation includes determining a functional partition for generating the second signal. According to claim 13,
wherein determining the mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode. According to claim 17,
wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. According to claim 13,
The mode of operation is determined based on quality of service requirements associated with the first signal or the second signal. According to claim 13,
wherein the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless device or a second channel quality associated with the communication link between the remote unit and the second wireless device. device for. According to claim 13,
The device for wireless communication, wherein the operation mode is determined based on whether the first signal is a data channel or a control channel. According to claim 13,
An apparatus for wireless communication, further comprising receiving a mode configuration from a control entity, wherein the operating mode is determined based on the mode configuration. According to claim 13,
wherein the first signal includes mode commands and the operating mode is determined based on the mode commands. A non-transitory computer-readable storage medium storing computer-executable code for wireless communication in a remote unit, wherein the code, when executed by a processor, causes the processor to:
receive a first signal from a first wireless device;
determine an operating mode for processing the first signal;
processing the first signal based on the operating mode to generate a second signal;
A non-transitory computer-readable storage medium that causes transmission of the second signal to a second wireless device. A method of wireless communication in a wireless device, comprising:
determining to transmit a first transmission intended for the second wireless device to the remote unit;
generating the first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. generating a transmission; and
transmitting the first transmission to the remote unit
A method of wireless communication, including. According to claim 25,
wherein the wireless device is a base station, the first transmission is a downlink channel, and the second transmission is a downlink channel. According to claim 25,
wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks for generating the second transmission. An apparatus for wireless communication in a wireless device, comprising:
means for determining to transmit a first transmission intended for the second wireless device to the remote unit;
means for generating the first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. means for generating a transmission; and
means for transmitting the first transmission to the remote unit
A device for wireless communication, including. An apparatus for wireless communication in a wireless device, comprising:
Memory; and
At least one processor coupled to the memory,
The at least one processor
determine to transmit a first transmission intended for the second wireless device to the remote unit;
generating the first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. generate;
An apparatus for wireless communication, configured to transmit the first transmission to the remote unit. According to clause 29,
wherein the wireless device is a base station, the first transmission is a downlink channel, and the second transmission is a downlink channel. According to clause 29,
wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks for generating the second transmission. 1. A non-transitory computer-readable storage medium storing computer-executable code for wireless communication in a wireless device, comprising:
The code, when executed by a processor, causes the processor to:
determine to transmit a first transmission intended for the second wireless device to the remote unit;
generating the first transmission, wherein the first transmission includes information for generating a second transmission, wherein the information for generating the second transmission is based on an operating mode of the remote unit. generate;
A non-transitory computer-readable storage medium that causes the first transmission to be transmitted to the remote unit. A method of wireless communication in a wireless device, comprising:
Receiving a second transmission from a remote unit, the second transmission comprising information regarding a first transmission transmitted by a second wireless device to the remote unit; and
determining the first transmission based on information regarding the second transmission and the first transmission.
A method of wireless communication, including. According to claim 33,
wherein the wireless device is a base station, the first transmission is an uplink channel, and the second transmission is an uplink channel. According to claim 33,
wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks of the first transmission. An apparatus for wireless communication in a wireless device, comprising:
means for receiving a second transmission from a remote unit, the second transmission comprising information regarding a first transmission transmitted by a second wireless device to the remote unit; and
means for determining the first transmission based on information regarding the second transmission and the first transmission.
A device for wireless communication, including. An apparatus for wireless communication in a wireless device, comprising:
Memory; and
At least one processor coupled to the memory
The at least one processor
receiving a second transmission from a remote unit, the second transmission comprising information regarding a first transmission transmitted by a second wireless device to the remote unit;
and determine the first transmission based on information regarding the second transmission and the first transmission. According to clause 37,
wherein the wireless device is a base station, the first transmission is an uplink channel, and the second transmission is an uplink channel. According to clause 37,
wherein the information includes time domain IQ samples, frequency domain IQ samples, symbols, codewords, or transport blocks of the first transmission. 1. A non-transitory computer-readable storage medium storing computer-executable code for wireless communication in a wireless device, comprising:
The code, when executed by a processor, causes the processor to:
receiving a second transmission from a remote unit, the second transmission comprising information regarding a first transmission transmitted by a second wireless device to the remote unit;
and determining the first transmission based on information regarding the second transmission and the first transmission. A method of wireless communication in a base station, comprising:
Determining a mode of operation for a remote unit, wherein the mode of operation is configured to enable the remote unit to process a first signal received from a first wireless device to generate a second signal for transmission to a second wireless device. Configuration: determining the operation mode; and
transmitting the operating mode to the remote unit
A method of wireless communication, including. According to claim 41,
Wherein determining a mode of operation includes selecting a mode from a relaying mode and a repeating mode. According to claim 41,
wherein determining a mode of operation includes determining a functional partition for processing the first signal. According to claim 41,
and determining a mode of operation includes determining a functional partition for generating the second signal. According to claim 41,
wherein determining a mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode. According to claim 45,
wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. According to claim 41,
Wherein the mode of operation is determined based on quality of service requirements associated with the first signal or the second signal. According to claim 41,
wherein the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless or a second channel quality associated with the communication link between the remote unit and the second wireless device. method. According to claim 41,
The method of wireless communication, wherein the mode of operation is determined based on whether the first signal is a data channel or a control channel. A device for wireless communication at a base station,
Means for determining a mode of operation for a remote unit, wherein the mode of operation is configured to enable the remote unit to process a first signal received from a first wireless device to generate a second signal for transmission to a second wireless device. means for determining the mode of operation, comprising: and
means for transmitting the mode of operation to the remote unit
A device for wireless communication, including. A device for wireless communication at a base station,
Memory; and
At least one processor coupled to the memory
The at least one processor
Determining a mode of operation for a remote unit, wherein the mode of operation configures the remote unit to process a first signal received from a first wireless device to generate a second signal for transmission to a second wireless device. , determine the operation mode;
An apparatus for wireless communication, configured to transmit the mode of operation to the remote unit. According to claim 51,
wherein determining the mode of operation includes selecting a mode from a relaying mode and a repeating mode. According to claim 51,
wherein determining the mode of operation includes determining a functional partition for processing the first signal. According to claim 51,
wherein determining the mode of operation includes determining a functional partition for generating the second signal. According to claim 51,
wherein determining the mode of operation includes selecting a mode from a transmitter transparent relay mode and a receiver transparent relay mode. According to claim 55,
wherein the mode of operation is determined based on whether the first wireless device is a base station or based on whether the second wireless device is a base station. According to claim 51,
The mode of operation is determined based on quality of service requirements associated with the first signal or the second signal. According to claim 51,
wherein the mode of operation is determined based on a first channel quality associated with the communication link between the remote unit and the first wireless device or a second channel quality associated with the communication link between the remote unit and the second wireless device. device for. According to claim 51,
The device for wireless communication, wherein the operation mode is determined based on whether the first signal is a data channel or a control channel. 1. A non-transitory computer-readable storage medium storing computer-executable code for wireless communication in a base station, comprising:
The code, when executed by a processor, causes the processor to:
Determining a mode of operation for a remote unit, wherein the mode of operation configures the remote unit to process a first signal received from a first wireless device to generate a second signal for transmission to a second wireless device. , determine the operation mode;
A non-transitory computer-readable storage medium that causes transmission of the mode of operation to the remote unit.

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