CN111107630B

CN111107630B - Communication method and communication device

Info

Publication number: CN111107630B
Application number: CN201811256992.9A
Authority: CN
Inventors: 陈雷; 管鹏; 张希
Original assignee: Chengdu Huawei Technology Co Ltd
Current assignee: Chengdu Huawei Technology Co Ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2022-05-31
Anticipated expiration: 2038-10-26
Also published as: CN111107630A; CN115175340A; WO2020083053A1

Abstract

The application provides a communication method and a communication device. The communication method comprises the following steps: the method comprises the steps that terminal equipment receives configuration information, wherein the configuration information comprises a corresponding relation between first information and a beam failure recovery request message; the terminal equipment detects that a first wave beam fails in a first cell; the terminal equipment sends a beam failure recovery request message in a second cell; the terminal equipment determines first information corresponding to the beam failure recovery request message in the second cell according to the corresponding relation in the configuration information; and the terminal equipment sends an uplink channel according to the first information, wherein the uplink channel carries the information of the second wave beam in the first cell. The communication method and the communication device provided by the application can realize the recovery of the beam failure when the terminal equipment detects the beam failure in the cell.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

Beam-based communication can result in higher antenna gain, especially in high frequency communication environments, which can overcome the rapid attenuation of high frequency signals.

In a communication system, for example, in a 5G NR communication system, if beams are used by both a base station and a terminal, a mechanism for aligning beams at both ends (beam alignment) is required, otherwise, communication between the base station and the terminal is not possible, which is called beam management (beam management) in a communication protocol.

Beam Failure Recovery (BFR) is a function of beam management. When the base station beam and the terminal beam that are originally aligned with each other cannot normally communicate, for example, when the base station beam and the terminal beam that are originally aligned with each other are blocked by an obstacle (such as a human body or a vehicle), a new pair of beams that can be aligned with each other needs to be searched again to ensure that the communication between the base station and the terminal can continue. This process of re-finding a beam that can communicate is referred to as beam failure recovery. Beam failure recovery may be referred to simply as beam recovery.

The beam failure recovery may include the following steps:

(1) beam failure detection (beam failure detection), that is, a terminal monitors the quality of a control channel, and if the quality of the control channel is continuously lower than a certain threshold and lasts for a certain time, the beam failure is considered to occur;

(2) finding a new available beam, that is, the terminal selects an alternative beam satisfying a condition from a set of alternative beams (candidate beams) as the new available beam, wherein the set of alternative beams may be configured by the base station to the terminal, and the condition satisfied by the available beam may be that the beam quality is higher than a given alternative beam quality threshold;

(3) a beam failure recovery request (BFRQ), that is, the number of a new available beam which the terminal finds is notified to the base station through a Random Access Channel (RACH) associated with the backup beam number of the BFRQ that a beam failure occurs, and the number of the beam is notified to the base station through the RACH, and then the beam of the terminal is switched to the available beam to wait for a response from the base station;

(4) a beam failure recovery response (beam failure recovery response), that is, after receiving the BFRQ, the base station switches its beam to the beam notified by the terminal, and sends a response on the beam;

(5) if the terminal receives the beam failure recovery response sent by the base station, the recovery of the beam failure is completed.

In the Carrier Aggregation (CA) scenario, beam management techniques may also be applied. Specifically, in the CA scenario, the beam failure recovery procedure may also be applied.

For example, the terminal device may pre-configure an association relationship between each candidate beam in a primary cell (Pcell) and a Random Access Channel (RACH) resource, and when a beam failure is detected by the primary cell, send a beam recovery request message to the base station using the RACH resource pre-associated with the candidate beam in the selected primary cell.

However, in the existing beam failure recovery procedure, uplink transmission is not configured for a secondary cell (Scell), for example, associated uplink resources are not configured for a beam in the secondary cell, which results in that when a terminal device detects a beam failure in the secondary cell, it does not know which RACH resources should be used to send a beam recovery request message to a base station, thereby affecting implementation of beam failure recovery of the terminal device in the secondary cell.

Therefore, how to implement the beam failure recovery of the terminal device in the secondary cell is a technical problem to be solved urgently.

Disclosure of Invention

The application provides a communication method and a communication device, which can realize beam failure recovery when a terminal device detects beam failure in a cell.

In a first aspect, the present application provides a communication method performed by a terminal side, the communication method including: the method comprises the steps that terminal equipment receives configuration information, wherein the configuration information comprises a corresponding relation between first information and a beam failure recovery request message; the terminal equipment detects a first beam failure in a first cell; the terminal equipment sends the beam failure recovery request message in a second cell; the terminal equipment determines the first information corresponding to the beam failure recovery request message in the second cell according to the corresponding relation in the configuration information; and the terminal equipment sends an uplink channel according to the first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In a second aspect, the present application provides a communication method performed by a network side, the communication method including: the method comprises the steps that network equipment sends configuration information, wherein the configuration information comprises a corresponding relation between first information and a beam failure recovery request message; the network equipment receives the beam failure recovery request message in a second cell; the network device responds to the beam failure recovery request message, and determines the first information corresponding to the beam failure recovery request message according to the corresponding relation in the configuration information; and the network equipment receives an uplink channel according to the first information, wherein the uplink channel carries the information of the second wave beam in the first cell.

In the communication methods of the first and second aspects, the network device configures a corresponding relationship between the beam failure recovery request message and the first information to the terminal device, so that when the terminal device detects a beam failure in the first cell, the terminal device may find the first information corresponding to the beam failure recovery request message according to the corresponding relationship, and send information of an available second beam in the first cell to the network device according to the first information, so that the terminal device and the network device can recover communication with the first cell through the second beam.

In addition, because the corresponding relationship between the beam failure recovery request message and the first information is pre-configured on the terminal device, the terminal device may send the information of the available second beam to the network device in the second cell directly according to the first information without waiting for the scheduling of the network device after the first cell detects the failure of the first beam, so that the signaling overhead between the terminal device and the network device may be saved and the delay of beam recovery may be reduced.

Optionally, the first information may carry information associated with a channel used for transmitting information of the second beam. For example, the first information may carry time resources and/or beam resources that should be used by a channel for transmitting information of the second beam.

In a third aspect, the present application provides a communication method, including: the method comprises the steps that terminal equipment receives configuration information, wherein the configuration information comprises a corresponding relation between first information and a plurality of beam failure recovery request messages; the terminal equipment detects a first beam failure in a first cell; the terminal equipment sends a first beam failure recovery request message in a second cell; the terminal device determines the first information corresponding to the first beam failure recovery request message in the second cell according to the corresponding relation in the configuration information; and the terminal equipment sends an uplink channel according to the first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In a fourth aspect, the present application provides a communication method performed by a network side, where the communication method includes: the method comprises the steps that network equipment sends configuration information, wherein the configuration information comprises a corresponding relation between first information and a plurality of beam failure recovery request messages; the network equipment receives a first beam failure recovery request message in a second cell; the network device responds to the first beam failure recovery request message, and determines the first information corresponding to the first beam failure recovery request message according to the corresponding relation in the configuration information; and the network equipment receives an uplink channel according to the first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In the communication methods in the third and fourth aspects, because the multiple beam failure recovery request messages may correspond to the same first information, that is, to the beam failure recovery request messages sent using different resources, only the same first information may be configured or used, that is, only the same resource is configured or used to send the uplink channel, so that resource overhead may be saved, and resource utilization rate may be improved.

In a fifth aspect, the present application provides a communication method, including: the method comprises the steps that terminal equipment receives configuration information, wherein the configuration information comprises a corresponding relation between a plurality of pieces of first information and a beam failure recovery request message; the terminal equipment detects that a first wave beam fails in a first cell; the terminal equipment sends the beam failure recovery request message in a second cell; the terminal equipment determines target first information corresponding to the beam failure recovery request message from the plurality of pieces of first information in the second cell according to the corresponding relation in the configuration information; and the terminal equipment sends an uplink channel according to the target first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In a sixth aspect, the present application provides a communication method performed by a network side, where the communication method includes: the method comprises the steps that network equipment sends configuration information, wherein the configuration information comprises a corresponding relation between a plurality of pieces of first information and a beam failure recovery request message; the network equipment receives the beam failure recovery request message in a second cell; the network equipment responds to the beam failure recovery request message, and determines target first information corresponding to the beam failure recovery request message from the plurality of pieces of first information according to the corresponding relation in the configuration information; and the network equipment receives an uplink channel according to the target first information, wherein the uplink channel carries information of a second wave beam in the first cell.

In the communication methods of the fifth aspect and the sixth aspect, the same beam failure recovery request message may correspond to multiple pieces of first information, that is, correspond to the beam failure recovery request message transmitted using the same resource, and different pieces of first information may be configured or used, that is, different resources may be configured or used to transmit the uplink channel, so that the transmission flexibility of the uplink channel may be improved.

In a seventh aspect, the present application provides a communication method, including: the method comprises the steps that terminal equipment receives configuration information, wherein the configuration information comprises the corresponding relation between a plurality of pieces of first information and a plurality of pieces of beam failure recovery request information; the terminal equipment detects a first beam failure in a first cell; the terminal equipment sends a first beam failure recovery request message in a second cell; the terminal device determines, in the second cell, target first information corresponding to the first beam failure recovery request message from the plurality of first information according to the correspondence in the configuration information; and the terminal equipment sends an uplink channel according to the target first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In an eighth aspect, the present application provides a communication method performed by a network side, where the communication method includes: the method comprises the steps that network equipment sends configuration information, wherein the configuration information comprises the corresponding relation between a plurality of pieces of first information and a plurality of pieces of beam failure recovery request information; the network equipment receives a first beam failure recovery request message in a second cell; the network device responds to the first beam failure recovery request message, and determines target first information corresponding to the beam failure recovery request message from the plurality of pieces of first information according to the corresponding relation in the configuration information; and the network equipment receives an uplink channel according to the target first information, wherein the uplink channel carries information of the second wave beam in the first cell.

In the communication methods of the seventh aspect and the eighth aspect, because the same beam failure recovery request message may correspond to multiple pieces of first information, that is, correspond to the beam failure recovery request message transmitted using the same resource, different pieces of first information may be configured or used, that is, different resources may be configured or used to transmit the uplink channel, so that the transmission flexibility of the uplink channel may be improved. In addition, the multiple beam failure recovery request messages may correspond to the same first information, that is, the beam failure recovery request messages transmitted using different resources, and only the same first information, that is, only the same resource is configured or used to transmit the uplink channel, so that resource overhead may be saved and resource utilization rate may be improved.

In a possible implementation manner, the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

In a possible implementation manner, the uplink channel includes a physical uplink control channel or a physical uplink shared channel.

In a possible implementation manner, the first information includes first indication information and/or second indication information, where the first indication information is used to indicate a time interval between the terminal device sending the beam failure recovery request message and sending the uplink channel, and the second indication information is used to indicate information of a target beam used by the terminal device sending the uplink channel.

Correspondingly, the sending, by the terminal device, the uplink channel according to the first information includes: and the terminal equipment uses the target beam to send the uplink channel after the time interval is passed after the beam failure recovery request message is sent according to the first information.

Correspondingly, the receiving, by the network device, the uplink channel according to the first information includes: and the network equipment receives the uplink channel sent by the terminal equipment by using the target beam after the time interval passes after receiving the beam failure recovery request message according to the first information.

In a possible implementation manner, the configuration information further includes the first information.

In a possible implementation manner, the configuration information further includes second information, where the second information is used to indicate that the terminal device sends the beam failure recovery request message in the second cell when detecting the beam failure in the first cell.

Correspondingly, the sending, by the terminal device, the beam failure recovery request message in the second cell includes: and the terminal equipment sends the beam failure recovery request message in the second cell according to the second information in the configuration information.

In a possible implementation manner, the configuration information further includes third information, where the third information is used to indicate a resource used by the terminal device to send the beam failure recovery request message in the second cell.

Alternatively, the resource indicated by the third information may be a RACH resource.

Correspondingly, the sending, by the terminal device, the beam failure recovery request message in the second cell includes: and the terminal equipment transmits the beam failure recovery request message in the second cell by using the resource according to third information in the configuration information.

Accordingly, the network device receiving the beam failure recovery request message in the second cell includes: and the network equipment receives the beam failure recovery request message in the second cell by using the resource according to the third information in the configuration information.

In one possible implementation, the information of the second beam includes at least one of the following information: an identity of the second beam, a quality of the second beam, an identity of a carrier component corresponding to the second beam, an identity of a bandwidth portion corresponding to the second beam, or a type of reference signal corresponding to the second beam.

In one possible implementation, the identifier of the second beam is a global identifier of the second beam.

Alternatively, the second beam may be a beam in an alternative beam configured on the terminal device, or may be a beam that the terminal device can detect but does not belong to the alternative beam. Alternatively, the second beam may be any beam that the terminal device is able to detect.

In a ninth aspect, a communication device is provided, which includes means for performing the communication method in any one of the first, third, fifth or seventh aspects or any one of the possible implementation manners of any one of the aspects. The communication device comprises units that can be implemented by software and/or hardware.

In a tenth aspect, a communication device is provided, which includes means for performing the communication method of any one of the second, fourth, sixth, or eighth aspects or any one of the possible implementations of any one of the aspects. The communication device comprises units that can be implemented by software and/or hardware.

In an eleventh aspect, a communication device is provided. The communication device includes at least one processor and a communication interface. The communication interface is configured to enable the communication device to perform information interaction with other communication devices, and when the program instructions are executed in the at least one processor, the communication method in any one of the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or any one of possible implementation manners of any one of the first aspect, the third aspect, the fifth aspect, or the seventh aspect is implemented.

Optionally, the communication device may further comprise a memory. The memory is used for storing programs and data.

Alternatively, the communication device may be a terminal device.

In a twelfth aspect, a communication device is provided. The communication device includes at least one processor and a communication interface. The communication interface is used for information interaction between the communication device and other communication devices, and when the program instructions are executed in the at least one processor, the communication method in any one of the second aspect, the fourth aspect, the sixth aspect or the eighth aspect or any one of the possible implementation manners of any one of the second aspect, the fourth aspect, the sixth aspect or the eighth aspect is implemented.

Alternatively, the communication device may be a network device.

In a thirteenth aspect, a computer-readable storage medium is provided. The computer readable storage medium has stored therein program code for execution by the communication device. The program code comprises instructions for carrying out the communication method of the above aspects or any one of the possible implementations of the above aspects.

For example, the computer readable medium may have stored therein a program code for execution by a terminal device, the program code including instructions for performing the communication method in any one of the first, third, fifth or seventh aspects or any one of the possible implementations of any one of the aspects.

For example, the computer readable medium may have stored therein a program code for execution by a network device, the program code comprising instructions for performing the communication method in any one of the second, fourth, sixth or eighth aspects or any one of the possible implementations of any one of the aspects.

In a fourteenth aspect, the present application provides a computer program product containing instructions. Instructions which, when run on a communication device, cause the communication device to perform the method in the above-mentioned parties or any one of the above-mentioned parties' possible implementations.

For example, the computer program product, when executed on a terminal device, causes the terminal device to execute the instructions of the communication method in any one of the first, third, fifth or seventh aspects or any one of the possible implementations of any one of the aspects.

For example, the computer program product, when executed on a network device, causes the network device to execute the instructions of the communication method in any one of the second, fourth, sixth or eighth aspects or any one of the possible implementations of any one of the aspects.

In a fifteenth aspect, the present application provides a system chip comprising an input-output interface and at least one processor, the at least one processor being configured to invoke instructions in a memory to perform the operations of the method in the above aspects or any one of the possible implementations of the above aspects.

Optionally, the system-on-chip may further include at least one memory for storing instructions for execution by the processor and a bus.

In a sixteenth aspect, a communication system is provided, which includes the foregoing network device and terminal device.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for use in the communication method of the embodiment of the present application;

FIG. 2 is a schematic flow chart diagram of a communication method of one embodiment of the present application;

FIG. 3 is a schematic block diagram of a communication device according to one embodiment of the present application;

fig. 4 is a schematic configuration diagram of a communication apparatus of another embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication apparatus of another embodiment of the present application;

fig. 6 is a schematic configuration diagram of a communication apparatus of another embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD) system, a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) system, or a new radio NR (UMTS) system, etc.

Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (nodeb, NB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved node b (eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the present embodiment is not limited.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit a specific structure of the execution subject of the method provided in the embodiment of the present application, as long as the program recorded with the code of the method provided in the embodiment of the present application can be run to perform communication according to the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

For the understanding of the embodiments of the present application, a communication system suitable for the embodiments of the present application will be described in detail with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication system suitable for use in embodiments of the present application. As shown in fig. 1, terminal device 110 may be located within the coverage of cell 130 and cell 140. It should be understood that the cells 130 and 140 shown in fig. 1 are merely examples, and that terminal device 110 may be located within the coverage of more cells.

It should be understood that the communication system shown in fig. 1 is only an example, and the coverage symbols of the cell 130 and the cell 140 may be completely coincident, or the cell 130 may be located within the coverage of the cell 140.

As shown in fig. 1, the communication system includes at least one network device 120 and at least one terminal device 110. In the communication system, the terminal device and the network device may obtain one or more beam pairs with better communication through a beam management process, where the beam pairs are < Bx, B 'x > and < By, B' y >, where Bx represents a transmission beam of the network device, B 'x represents a reception beam of the terminal device, By represents a transmission beam of the terminal device, and B' y represents a reception beam of the network device.

For example, referring to fig. 1, a transmission beam #1 of the network device and a reception beam #0 of the terminal device are one beam pair, and a transmission beam #2 of the network device and a reception beam #2 of the terminal device are one beam pair. The transmission beam #0 of the terminal device and the reception beam #1 of the network device are one beam pair, and the transmission beam #1 of the terminal device and the reception beam #2 of the network device are one beam pair.

In this communication system, beam alignment of terminal device 110 and network device 120 is required for normal communication. Since both the terminal device and the network device can be directed to multiple beam directions, proper beam pointing is required for communication. Specifically, in the downstream communication, the network device needs to notify the terminal device of what reception beam should be used to receive a signal transmitted next by the network device, or to notify the terminal device of what transmission beam the signal transmitted next by the network device is transmitted using. In uplink communication, the network device needs to notify the terminal device of what transmission beam should be used for transmitting uplink signals, or notify the terminal device of what reception beam the network device should use for receiving signals transmitted by the terminal. For example, in downlink transmission, the network device may notify the terminal device that the network device transmits using the transmit beam #1, and then the terminal device needs to receive using the receive beam # 0. Alternatively, the network device transmits using transmit beam #1 and notifies the terminal device to receive using receive beam # 0. As another example, in uplink transmission, the network device may inform the terminal device to transmit using transmit beam #0, and then the network device will receive using receive beam # 1. Alternatively, the network device may notify the network device that the used receive beam is receive beam #0, so that the terminal device needs to transmit using transmit beam # 0.

To facilitate understanding of the embodiments of the present application, a few terms referred to in the present application will be briefly described below.

1. Wave beam: a beam is a communication resource. The beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique (beamforming) or other technical means. The beamforming technique may be embodied as a digital beamforming technique, an analog beamforming technique, a hybrid digital/analog beamforming technique. Different beams may be considered different resources. The same information or different information may be transmitted through different beams. Alternatively, a plurality of beams having the same or similar communication characteristics may be regarded as one beam. One or more antenna ports may be included in a beam for transmitting data channels, control channels, sounding signals, and the like.

A beam, which may also be understood as a spatial resource, may refer to a transmit or receive precoding vector having an energy transmission directivity. The energy transmission directivity may refer to that in a certain spatial position, a signal subjected to precoding processing by the precoding vector has a better receiving power, such as meeting a receiving demodulation signal-to-noise ratio, and the like, and the energy transmission directivity may also refer to that the same signal sent from different spatial positions is received by the precoding vector and has different receiving powers. Different precoding vectors may be provided for the same device (e.g., a network device or a terminal device), and different devices may also have different precoding vectors, that is, different beams correspond to each other. Beams can be divided into transmit beams and receive beams, from both transmit and receive perspectives.

Transmitting a beam: refers to transmitting a beam having directivity by using a beamforming technique through multiple antennas.

Receiving a beam: the directional antenna also has directivity in the direction of receiving signals, and points to the incoming wave direction of the transmitting wave beam as much as possible so as to further improve the receiving signal-to-noise ratio and avoid the interference among users.

The beams may also be referred to as spatial filters, or spatial filters or spatial parameters, the transmit beams may also be referred to as spatial transmit filters, and the receive beams may also be referred to as spatial receive filters.

2. Beam pairing relationship: i.e. the pairing between the transmit beam and the receive beam, i.e. the pairing between the spatial transmit filter and the spatial receive filter. A large beamforming gain can be obtained for transmitting signals between the transmitting beam and the receiving beam having the beam pairing relationship.

In one implementation, the transmitting end and the receiving end may obtain the beam pairing relationship through beam training. Specifically, the transmitting end may transmit the reference signal in a beam scanning manner, and the receiving end may also receive the reference signal in a beam scanning manner. Specifically, the transmitting end may form beams with different directivities in space by means of beam forming, and may poll on a plurality of beams with different directivities to transmit the reference signal through the beams with different directivities, so that the power of the reference signal transmitted in the direction in which the transmitted beam is directed may be maximized. The receiving end can also form beams with different directivities in space in a beam forming mode, and can poll on a plurality of beams with different directivities to receive the reference signal through the beams with different directivities, so that the power of the reference signal received by the receiving end can be maximized in the direction pointed by the received beam.

3. Reference Signal (RS) and reference signal resources: the reference signal may be used for channel measurement or channel estimation, etc. The reference signal resource may be used to configure transmission attributes of the reference signal, such as time-frequency resource location, port mapping relationship, power factor, scrambling code, and the like, and refer to the prior art specifically. The transmitting end device may transmit the reference signal based on the reference signal resource, and the receiving end device may receive the reference signal based on the reference signal resource.

The channel measurement referred to in this application also includes beam measurement, i.e., beam quality information obtained by measuring a reference signal, and the parameter for measuring the beam quality includes Reference Signal Receiving Power (RSRP), but is not limited thereto. For example, the beam quality can also be measured by parameters such as Reference Signal Received Quality (RSRQ), signal-to-noise ratio (SNR), signal-to-interference plus noise ratio (SINR), block error rate (BLER), signal quality indicator (CQI), and the like. In the embodiments of the present application, for convenience of description, the channel measurement involved may be regarded as beam measurement without specific description.

The reference signal may include, for example, a channel state information reference signal (CSI-RS), a Synchronization Signal Block (SSB), and a Sounding Reference Signal (SRS). Correspondingly, the reference signal resource may include a CSI-RS resource (CSI-RS resource), an SSB resource, and an SRS resource (SRS resource).

The SSBs may also be referred to as synchronization signal/physical broadcast channel block (SS/PBCH block), and the corresponding SSB resources may also be referred to as synchronization signal/physical broadcast channel block resources (SS/PBCH block resources), which may be abbreviated as SSB resources.

To distinguish the different reference signal resources, each reference signal resource may correspond to an identification of one reference signal resource, e.g., a CSI-RS resource identification (CRI), an SSB resource identification (SSBRI), an SRS Resource Index (SRI). The SSB resource identifier may also be referred to as an SSB identifier (SSB index).

It should be understood that the above listed reference signals and corresponding reference signal resources are only exemplary and should not constitute any limitation to the present application, which does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

4. Beam indication information: information indicating the beam used for transmission. Including transmit beams and/or receive beams. The beam indication information may be one or more of: a beam number (or a number, an index (index), an Identifier (ID), etc.), an uplink signal resource number, a downlink signal resource number, an absolute index of a beam, a relative index of a beam, a logical index of a beam, an index of an antenna port corresponding to a beam, an antenna port group index corresponding to a beam, an index of a downlink signal corresponding to a beam, a time index of a downlink synchronization signal block corresponding to a beam, Beam Pair Link (BPL) information, a transmission parameter (Tx parameter) corresponding to a beam, a reception parameter (Rx parameter) corresponding to a beam, a transmission weight corresponding to a beam, a weight matrix corresponding to a beam, a weight vector corresponding to a beam, a reception weight corresponding to a beam, an index of a transmission weight corresponding to a beam, an index of a weight matrix corresponding to a beam, an index of a weight vector corresponding to a beam, an index of a reception weight corresponding to a beam, a transmission weight matrix corresponding to a beam, and a transmission weight, At least one of a reception codebook corresponding to a beam, a transmission codebook corresponding to a beam, an index of a reception codebook corresponding to a beam, and an index of a transmission codebook corresponding to a beam. The downlink signal may be one or more of the following: the mobile station includes any one of a synchronization signal, a broadcast channel, a broadcast signal demodulation signal, a synchronization signal broadcast channel block (SSB), a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a UE specific reference signal (US-RS), a downlink control channel demodulation reference signal (DMRS), a downlink data channel demodulation reference signal, and a downlink phase noise tracking signal. The uplink signal may be one or more of the following: the random access method comprises any one of an uplink random access sequence, an uplink Sounding Reference Signal (SRS), an uplink control channel demodulation reference signal, an uplink data channel demodulation reference signal and an uplink phase noise tracking signal.

The beam indication information may also be embodied as a Transmission Configuration Index (TCI) or a TCI status. A TCI state includes one or more QCL information, each of which includes an ID of a reference signal (or synchronization signal block) and a QCL type. For example: the terminal device may need to determine a beam for receiving a Physical Downlink Shared Channel (PDSCH) according to a TCI state (usually carried by a Physical Downlink Control Channel (PDCCH)) indicated by the network device.

5. Quasi-co-location (QCL): or quasi-parity. The quasi-co-location relationship is used to indicate that the plurality of resources have one or more same or similar communication characteristics, and the same or similar communication configuration may be adopted for the plurality of resources having the co-location relationship. Specifically, the method comprises the following steps. The signals corresponding to the antenna ports having the QCL relationship have the same parameters, or the parameters of one antenna port (which may also be referred to as QCL parameters) may be used to determine the parameters of another antenna port having the QCL relationship with the antenna port, or two antenna ports have the same parameters, or the parameter difference between the two antenna ports is smaller than a certain threshold. Wherein the parameters may include one or more of: delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average delay (average delay), average gain, spatial Rx parameters. Wherein the spatial reception parameters may include one or more of: angle of arrival (AOA), average AOA, AOA extension, angle of departure (AOD), average angle of departure (AOD), AOD extension, receive antenna spatial correlation parameter, transmit beam, receive beam, and resource identification.

Spatial quasi-parity (spatial QCL): a spatial QCL can be considered as a type of QCL. For spatial, it can be understood from either the sender or receiver perspective, respectively: from the transmitting end, if two antenna ports are spatially quasi-co-located, that is, the corresponding beam directions of the two antenna ports are spatially consistent; from the perspective of the receiving end, if the two antenna ports are quasi-co-located in the spatial domain, it means that the receiving end can receive the signals transmitted by the two antenna ports in the same beam direction.

6. Quasi co-location assumption (QCL assignment): it is assumed whether there is a QCL relationship between the two ports. The configuration and indication of the quasi-co-location hypothesis can be used to assist the receiving end in receiving and demodulating the signal. For example, the receiving end can assume that the a port and the B port have QCL relationship, that is, the large scale parameter of the signal measured on the a port can be used for signal measurement and demodulation on the B port. The large-scale parameters may include parameters of the antenna ports described above.

7. Analog beamforming, which may be implemented by radio frequency. For example, a radio frequency link (RF chain) adjusts the phase through a phase shifter to control the change in the direction of the analog beam. Thus, an RF chain can only fire one analog beam at a time.

The communication based on the analog beam requires the alignment of the beams of the transmitting end and the receiving end, otherwise, the signals cannot be transmitted normally. Therefore, when the network device and the terminal device communicate with each other through a beam, the terminal device needs to measure multiple beams transmitted by the network device to select a better beam of the multiple beams, and report the better beam to the network device, where the beam is to be used for subsequent communication between the network device and the terminal device.

After the terminal device measures the multiple beams sent by the network device, the reporting beam is usually selected according to the principle that RSRP is the strongest, that is, through measurement, the terminal device reports the multiple beams with stronger RSRP to the network device, and the multiple beams with stronger RSRP are used for subsequent communication between the network device and the terminal device.

8. Carrier Aggregation (CA), which can aggregate two or more Component Carriers (CCs), realizes a larger transmission bandwidth and effectively increases the uplink and downlink transmission rate. The CA may support intra-band contiguous carrier aggregation, intra-band discontinuous carrier aggregation, inter-band discontinuous carrier aggregation, or the like. Among them, the component carrier may also be referred to as a Carrier Component (CC).

9. Bandwidth part (BWP): can be understood as a contiguous band of frequencies that contains at least one contiguous sub-band, each bandwidth portion can correspond to a set of system parameters (numerology) including, for example and without limitation, subcarrier spacing, Cyclic Prefix (CP) length, Transmission Time Interval (TTI), number of symbols (Symbol), Resource Block (RB) location, slot length, frame format, and the like. Different bandwidth portions may correspond to different system parameters.

It should be noted that in various embodiments of the present application, cell and carrier components may be equivalently replaced, because one CC is generally treated as one independent cell in the communication protocol. CC. The bandwidth part, CC/BWP, CC and/or BWP may be equivalently replaced as well, since they may all be used to describe one end frequency domain resource.

10. And the main cell works on the main frequency band, and the terminal equipment performs initial connection or connection reestablishment by using the main cell.

11. Secondary Cell Group (SCG): for a terminal device configured with dual connectivity, a subset of serving cells includes primary and secondary cells (primary SCG cells) and other secondary cells.

12. Main and auxiliary cells: for dual connectivity operation, the primary and secondary cells refer to cells that send random access when the terminal device performs synchronous reconfiguration.

13. And (3) special cell: for dual connectivity operation, the special cell refers to a master cell of a Master Cell Group (MCG) or a master and secondary cell of a secondary cell group, otherwise, the special cell is the master cell.

14. And (4) secondary cell: a cell providing additional radio resources outside the special cell if the terminal device is configured with the CA function.

15. A serving cell: for a terminal device in a radio resource control link (RRC _ CONNECTED) state, if CA or dual-connectivity (DC) is not configured, there is only one serving cell, i.e., a primary cell; if CA or DC is configured, the serving cell includes a combination of the special cell and all secondary cells.

16. And the beam failure recovery request message is used for informing the network equipment that the beam failure problem occurs in the terminal equipment when the terminal equipment detects the beam failure. It should be understood that in the embodiment of the present application, the beam failure recovery request message may be replaced with the BFRQ.

The definitions of the various terms described above can be found in the prior art. However, as technology continues to evolve, the above definitions may also change.

In order to facilitate an understanding of the embodiments of the present application, a brief description of several concepts involved in the present application follows.

The first cell is a cell in which the terminal device fails to detect the beam. The first cell may be any one of a plurality of cells covering the terminal device. For example, the first cell may be a secondary cell.

The second cell is a cell in which the terminal device sends a beam failure recovery request message. The second cell may be any one of a plurality of cells covering the terminal device. For example, the second cell may be a primary cell.

The frequency bands, bandwidths or carrier components used by the first cell and the second cell may be different. The first cell and the second cell may or may not be adjacent. The first cell and the second cell may be served by the same network device or may be served by different network devices.

The first beam is one or more beams in the first cell. The first beam is explicitly or implicitly configured by the network device to the terminal device to monitor the quality of the communication, e.g., control channel quality. For example, if the terminal device detects that the quality of the control channel is lower than a given beam failure threshold N times in the first cell, it determines that the beam fails.

The second beam refers to a beam that can be used by the terminal device to communicate with the network device. The second beam may be a beam in the first cell or may be a beam in another cell. Alternatively, the second beam may be a beam in a pre-configured candidate beam set, or may be a beam other than the candidate beam set.

For example, the second beam may be determined according to a measurement result after the terminal device measures a Synchronization Signal Block (SSB) or measures a channel state information reference signal (CSI-RS) or measures other signals.

The second resource is a resource that the terminal device should use after using the first resource to send the beam recovery failure request message, and the uplink channel carries information of the second beam. The uplink channel may include a PUCCH or a PUSCH.

The information of the second beam may comprise one or more of the following information: an identity of the second beam, a quality of the second beam, an identity of a carrier component corresponding to the second beam, an identity of a bandwidth portion corresponding to the second beam, or a type of reference signal corresponding to the second beam.

If the second beam is a beam other than the candidate beam set, the identifier of the second beam may be a global identifier of the second beam. If the second beam is a beam in the alternative beam set, the identifier of the second beam may be a local identifier of the second beam or a global identifier.

The second resource has an association relationship with the first resource. That is to say, on which second resources the uplink channel carrying the second beam information is transmitted by the terminal device is related to which first resources the beam recovery failure request message is transmitted by the terminal device.

The first information is information including second resource information. That is, the first information includes information of resources used for transmitting an uplink channel, and the uplink channel carries information of the second beam.

Since the first information includes the second resource information, the association relationship between the second resource and the first resource may also be referred to as the association relationship between the first information and the first resource. Further, the association relationship between the first information and the first resource may be referred to as an association relationship between the first information and a beam failure recovery request message transmitted using the first resource, and may be referred to as a correspondence relationship between the first information and the beam failure recovery request message for short.

Alternatively, the correspondence between the first information and the beam failure recovery request message may also be referred to as a correspondence between the first information and the second cell. For example, after the beam failure recovery request message is transmitted in a different cell, the uplink channel may be transmitted according to the first information corresponding to the cell.

Alternatively, the correspondence relationship between the first information and the beam failure recovery request message may be referred to as a correspondence relationship between the first information and the second beam. For example, after determining a different second beam, the terminal device may transmit the uplink channel according to the first information corresponding to the second beam.

Or, in the content related to the correspondence between the first information and the beam failure recovery request message in the embodiment of the present application, the first information may be replaced by the second resource or the uplink channel, and the beam failure recovery request message may be replaced by the first resource, the second beam, or the second cell.

The first information and the beam failure recovery request message may have a one-to-one, one-to-many, many-to-one, or many-to-many correspondence.

For example, after the beam recovery request message sent by using different first resources, the second resources used for sending the uplink channel carrying the second beam information are different, that is, the beam failure recovery request message and the first information are in a one-to-one correspondence relationship.

For example, after the beam recovery request message sent by using different first resources, the second resources used for sending the uplink channel carrying the second beam information are the same, that is, the beam failure recovery request message and the first information are in a many-to-one correspondence relationship.

For example, after the beam recovery request message is sent using the same first resource, the second resources used for sending the uplink channel carrying the second beam information are different, that is, the beam failure recovery request message and the first information are in a one-to-many correspondence relationship.

The first information may be one or more of reporting configuration (ReportConfig) information, Resource set/Resource setting (Resource setting or Resource set) information, trigger state (trigger state) information, or information of an uplink channel.

The first information may include first indication information and/or second indication information, where the first indication information is used to indicate a time interval between the terminal device sending the beam failure recovery request message sent by using the first resource and sending the uplink channel carrying the second beam information, and the second indication information is used to indicate information of a target beam used by the terminal device sending the uplink channel.

The information of the target beam may include one or more of the following information: an identification of the target beam, a quality of the target beam, an identification of a carrier component corresponding to the target beam, an identification of a bandwidth portion corresponding to the target beam, or a type of a reference signal corresponding to the target beam.

The terminal device uses the second resource to transmit the target beam used by the uplink channel, and the beam used by the first resource related to the terminal device to transmit the beam failure recovery request message may be the same or different.

For example, the second indication information may be used to indicate: whether a transmission beam is configured for the uplink channel or not, the terminal device transmits the uplink channel using the beam for the beam recovery failure recovery request message; alternatively, the second indication information may be used to indicate: and if a transmission beam is configured for the uplink channel, transmitting the uplink channel by using the transmission beam, otherwise, transmitting the uplink channel by using the beam for the beam recovery failure recovery request message.

It should be noted that the beam failure recovery request message in the embodiment of the present application may also be used to activate the network device to receive the uplink channel on the second resource, where the uplink channel carries information of the second beam. In addition, the beam failure recovery request message may also be used to notify the network device that uplink transmissions of other terminal devices should not be scheduled on the second resource.

The configuration information in the embodiment of the present application includes a corresponding relationship between the first information and the beam failure recovery request message. The location information may be carried in a broadcast channel, a system message transmission, a system message update, layer one (e.g., physical layer) control signaling, one of higher layer signaling, or a combination of signaling.

Illustratively, the physical layer information may be Downlink Control Information (DCI), and the higher layer signaling may be Radio Resource Control (RRC) signaling or medium access control element (MAC CE) signaling.

The configuration information may further include first information.

The configuration information may further include second information, where the second information is used to instruct the terminal device to send a beam failure recovery request message in the second cell when detecting a beam failure in the first cell.

The configuration information may further include third information, where the third information is used to indicate a first resource used by the terminal device to send the beam failure recovery request message in the second cell. Or, it can be said that the third information is used to indicate the first resource information, that is, to indicate which first resources the terminal device uses to transmit the beam failure recovery request message in the second cell.

The configuration information may further include fourth information, where the fourth information is used to indicate a range to which the second beam determined by the terminal device belongs. For example, the fourth information may be used to instruct the terminal device to determine the second beam in a pre-configured alternative set of beams. Alternatively, the fourth information may be used to instruct the terminal device to determine the second beam outside the alternative beam set, for example, the fourth information may be used to instruct the terminal device to measure the SSB or measure a periodic CSI-RS configured to the terminal device, so as to determine the second beam according to the measurement result.

When the uplink channel in the embodiment of the present application is the PUCCH, the information of the uplink channel may include, but is not limited to, one or more of the following information: identification (ID) of PUCCH resources; time-frequency resources used by the PUCCH; a transmission beam of the PUCCH; power-related parameters (including a reference value of transmission power, a path loss compensation value, and the like); the format and/or content of the PUCCH (e.g., ID of the candidate beam; quality of the candidate beam; ID of BWP/CC corresponding to PUCCH; candidate RS type); the correlation between the PUCCH and the BFRQ RACH in time, for example, the transmission of the PUCCH is activated at X time after the BFRQ RACH transmission; the beam association relationship between the PUCCH and the BFRQ RACH may be, for example, if the PUCCH resource itself has a transmission beam allocated, the PUCCH is transmitted using the allocated transmission beam, or the same transmission beam as the BFRQ RACH (even if the PUCCH resource itself has a transmission beam allocated, the PUCCH is transmitted using the transmission beam of the BFRQ RACH).

The association relationship between the PUCCH and the BFRQ RACH in time is the first indication information, the association relationship between the PUCCH and the BFRQ RACH in beam is the second indication information, and the candidate beam is the second beam.

When the first information is information of the PUCCH, the correspondence between the beam failure recovery request message and the first information may specifically be the correspondence between the identifier of the PUCCH resource and the beam failure recovery request message. After the terminal device determines the "identifier of PUCCH resource" corresponding to the beam failure recovery request message sent by the terminal device in the second cell according to the correspondence between the beam failure recovery request message and the "identifier of PUCCH resource", PUCCH may be sent according to uplink channel information corresponding to the "identifier of PUCCH resource". The correspondence between the PUCCH resource identifier and the beam failure recovery request message may be referred to as the correspondence between PUCCH and BRRQ RACH for short. The PUCCH and BFRQ RACH resources may be in a one-to-one, one-to-many, many-to-one, many-to-many correspondence.

When the uplink channel in the embodiment of the present application is the PUSCH, the information of the uplink channel may refer to the content included when the uplink channel is the PUCCH, which is not described herein again.

In this embodiment of the present application, when the uplink channel is the PUCCH, the reported configuration information may include, but is not limited to, the following information: reporting the configured identifier; the reported CC/BWP identification; reporting type (periodic reporting, semi-persistent reporting, aperiodic reporting, etc.); BWP corresponding to PUCCH; identification of PUCCH resources; reporting parameters (including reporting time slot, symbol, offset and the like) related to the time point; reporting parameters related to the used power (including a reference value of the transmission power, a path loss compensation value and the like); reporting amount, such as one or more of CSI-RS resource identification + beam quality, SSB index + beam quality, beam number + beam quality; reporting the frequency domain position; whether to report the packet or not; the number of reported beams; setting beam management resources; and setting interference management resources. Optionally, the reporting configuration information may further include indication information of whether the uplink channel used for reporting is a PUCCH or a PUSCH; when the uplink channel is the PUCCH, the identifier of the PUCCH resource may also be included.

The reported amount is information of the second beam, for example, "CSI-RS resource identifier + beam quality" is used to indicate that the second beam is obtained according to CSI-RS measurement corresponding to the CSI-RS resource identifier, where the beam quality is signal quality of the second beam.

When the first information is the reporting configuration information, the correspondence between the beam failure recovery request message and the first information may be embodied by the correspondence between the beam failure recovery request message and the "identifier of reporting configuration". After the terminal device determines the "identifier of reporting configuration" corresponding to the beam failure recovery request message sent by the terminal device in the second cell according to the corresponding relationship between the beam failure recovery request message and the "identifier of reporting configuration", the terminal device may send the uplink channel according to the information recorded in the reporting configuration information corresponding to the "identifier of reporting configuration". Optionally, if the reporting configuration is used for normal beam reporting, the terminal device may abandon normal beam reporting after sending the beam failure recovery request message, and send information for beam failure recovery, for example, information of an available beam of the first cell, according to an indication of the reporting configuration.

The resource setting information in the embodiment of the present application may include, but is not limited to, the following information: identification of resource settings. The identifier of the resource setting corresponds to the identifier of the resource setting included in the report setting information.

When the first information is the resource setting information, the correspondence between the beam failure recovery request message and the first information may be embodied by the correspondence between the beam failure recovery request message and the "identifier of resource setting". After the terminal device determines the "identifier of resource setting" corresponding to the beam failure recovery request message sent by the terminal device in the second cell according to the corresponding relationship between the beam failure recovery request message and the "identifier of resource setting", the terminal device may send the uplink channel according to the resource setting corresponding to the "identifier of resource setting", for example, determine to send the uplink channel according to the report setting information associated with the identifier of resource setting.

The trigger state information of the embodiment of the present application may include, but is not limited to, the following information: an identification of a trigger state; the identifier of the reporting setting associated with the trigger state may be associated with one or more identifiers of the reporting setting.

When the first information is the trigger state information, the correspondence between the beam failure recovery request message and the first information may be embodied by the correspondence between the beam failure recovery request message and the "identifier of the trigger state". After the terminal device determines the "trigger state identifier" corresponding to the beam failure recovery request message sent by the terminal device in the second cell according to the corresponding relationship between the beam failure recovery request message and the "trigger state identifier", the terminal device may send the uplink channel according to the reporting setting information associated with the reporting setting identifier included in the triggering state information corresponding to the "trigger state identifier".

Optionally, the trigger status information may further include: the trigger state is associated with an identification of a resource setting. At this time, after the terminal device determines the associated reporting setting information, it may also determine the corresponding resource setting information according to the identifier of the resource setting, and send the uplink channel according to the resource setting information.

Optionally, if the trigger state is used for normal beam reporting, the terminal device may abandon normal beam reporting after sending the beam failure recovery request message, and send information for beam failure recovery, for example, information of an available beam of the first cell, according to an indication of reporting configuration.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 2 is a schematic flow chart of a communication method shown from the perspective of device interaction. As shown, the communication method illustrated in fig. 2 may include steps S201 to S205.

It should be understood that, in the embodiments of the present application, a terminal device and a network device are taken as an example of an execution subject for executing the communication method in the embodiments of the present application, and the communication method in the embodiments of the present application is described. By way of example and not limitation, the execution subject of the communication method of the embodiment of the present application may also be a chip applied to a terminal device and a chip applied to a network device.

S201, the network device sends configuration information, where the configuration information includes a corresponding relationship between the beam failure recovery request message and the first information. Correspondingly, the terminal device receives the configuration information.

Each beam failure recovery request message may correspond to one piece of first information, or it may be said that the beam failure recovery request message and the first information are in a one-to-one correspondence relationship, or it may be said that each first resource corresponds to one piece of second resource.

S202, the terminal device detects a first beam failure in the first cell.

In addition, the terminal device may also determine a second beam. For example, the terminal device may determine an available beam in the first cell as the second beam.

The terminal device may determine a beam in the configured candidate beam set as a second beam, or may measure a beam not configured in the candidate beam set, and determine the second beam according to a measurement result. For example, the terminal device may measure SSBs in the first cell, SSBs in other cells, or other periodic CSI-RSs configured to the terminal device, and determine a beam corresponding to a signal with signal quality above a given signal threshold as the second beam.

S203, the terminal device sends a beam failure recovery request message in the second cell. Accordingly, the network device receives the beam failure recovery request message.

For example, if the configuration information includes the second information, the terminal device sends a beam failure recovery request message in the second cell according to the indication of the second information.

Further, the terminal device may transmit the beam failure recovery request message using the first resource in the second cell.

For example, if the configuration information includes the third information, the terminal device transmits, in the second cell, the beam failure recovery request message using the second resource indicated by the third information.

It should be understood that the network device in this step and the network device in S201 may be the same network device or different network devices.

And S204, the terminal equipment determines first information corresponding to the beam failure recovery request message according to the corresponding relation in the configuration information.

If the configuration information includes a one-to-one correspondence relationship between the beam failure recovery request message and the first information, the terminal device may determine, according to the correspondence relationship, the first information corresponding to the beam failure recovery request message.

S205, the terminal device sends an uplink channel in the second cell according to the first information, wherein the uplink channel carries information of the second beam in the first cell. Accordingly, the network device receives the uplink channel to receive the information of the second beam.

Optionally, if the terminal device does not determine the second beam in step S202, that is, the terminal device does not perform the operation of new beam discovery in the first cell, the terminal device may send an uplink channel through the second cell, where the uplink channel carries information of the first cell beam failure. The information about the first cell beam failure may be a first beam identifier and a beam quality reporting exception identifier.

It should be understood that the network device and the network device in S203 may be the same network device.

The sending, by the terminal device, the uplink channel in the second cell according to the first information may include: and the terminal equipment transmits an uplink channel in the second cell by using the second resource indicated by the first information. That is, the second resource for the terminal device to transmit the uplink channel may not be scheduled by the network device through the uplink grant.

For example, the first information includes first indication information, where the first indication information is used to indicate a time interval between the terminal device sending the beam failure recovery request message and sending the uplink channel, and after the terminal device sends the beam failure recovery request message, the terminal device sends the uplink channel after the time interval indicated by the first indication information.

For example, the first information includes second indication information, where the second indication information is used to indicate that, when the terminal device sends information of a target beam used by the uplink channel, the terminal device sends the uplink channel by using the target beam after sending the beam failure recovery request message.

For example, the first information includes first indication information and second indication information, the first indication information is used to indicate a time interval between the terminal device sending the beam failure recovery request message and sending the uplink channel, and the second indication information is used to indicate that the terminal device sends information of a target beam used by the uplink channel, after sending the beam failure recovery request message, the terminal device sends the uplink channel by using the target beam after the time interval indicated by the first indication information passes.

In the communication method shown in fig. 2, S206 may further be included, that is, the network device sends a response to the beam failure recovery request message and/or the uplink channel. Accordingly, the terminal device monitors the response of the network device.

In the prior art, the terminal device may start to monitor the response of the network device 4 slots (slots) after transmitting the beam recovery request message (e.g. RACH) in a normal case.

However, in the embodiment of the present application, since transmission of the beam failure recovery request message (for example, RACH) is related to transmission of an uplink channel (for example, PUCCH/PUSCH), it is no longer appropriate to start timing after transmission of the beam failure recovery request message.

Assuming that the terminal device transmits the beam failure recovery request message in time slot n and transmits the uplink channel in time slot n + X, the terminal device may be specified to start monitoring the network device for the response of the beam failure recovery request message and the associated uplink channel in time slot n + X + Y. Wherein X is the time interval indicated by the first indication information.

In addition, the following points are to be noted:

(1) the uplink and downlink time units are different due to different sub-carrier spacing (SCS) of uplink and downlink transmission. For example, if the subcarrier spacing for downlink transmission is 120 kilohertz (kHz), one downlink slot is 0.125 milliseconds (ms), and if the SCS for uplink transmission is 60kHz, one uplink slot is 0.25ms, such that the uplink and downlink slot numbers are different.

One possible solution to this problem is to use absolute time, e.g. ms, to identify the time points; another possible solution is to standardize the unified use of uplink or downlink slot numbers, for example, standardizing that a beam failure recovery request message is sent in a slot n, an uplink channel is sent in a slot n + X, and the implementation in monitoring the response of the network device in the slot n + X + Y refers to a downlink slot; another possible solution is to scale the uplink and downlink time units.

(2) The monitoring of the beam to which the network device responds by the terminal device may include the following possibilities: monitoring a reception beam corresponding to a beam transmitting the beam failure recovery request message; and monitoring a receiving beam corresponding to the beam of the uplink channel to be transmitted.

(3) The cell for which the terminal device monitors the network device for responses may include the following possibilities: monitoring a beam failure recovery dedicated resource set (CORESET) and/or a Search space (Search space) of the first cell; monitoring a first cell beam failure recovery dedicated resource set and/or a search space on a second cell; the normal resource set and/or search space on the second cell, i.e. the resource set and/or search space dedicated for non-beam failure recovery, is monitored.

(4) The specific content of the network device response may include the following possibilities: confirming completion of a beam failure recovery function; triggering the beam measurement and report of the first cell once through scheduling; triggering channel information measurement and reporting of the first cell based on available beams reported by the terminal equipment through scheduling; the beam information of the first cell is reconfigured by scheduling, for example, the beam configuration including uplink and downlink data/control channels.

The communication method of another embodiment of the present application may include S301 to S306.

S301 to S306 refer to S201 to S206, and for brevity, the following description focuses on the differences from S201 to S206 in this embodiment.

The configuration information sent by the network device to the terminal device includes a corresponding relationship between the multiple beam failure recovery request messages and the first information, that is, each beam failure recovery request message has corresponding first information, and the multiple beam failure recovery request messages correspond to the same first information.

The correspondence between the multiple beam failure recovery request messages and the first information may be understood as: the multiple first resources correspond to the same first information, that is, the multiple first resources correspond to the same second resource, that is, when the beam failure recovery request message is transmitted by using different first resources, the uplink channel can be transmitted by using the same second resource. Or, it can be said that the beam failure recovery request message and the first information are in a many-to-one correspondence relationship.

The communication method of another embodiment of the present application may include S401 to S406.

S401 to S406 may refer to S201 to S206, and for brevity, the following description focuses on the differences from S201 to S206 in this embodiment.

The configuration information sent by the network device to the terminal device includes a correspondence between a plurality of first information and the beam failure recovery request message, that is, each first information has a corresponding beam failure recovery request message, and the plurality of first information correspond to the same beam failure recovery request message, or the same beam failure recovery request message may correspond to different first information.

The correspondence between the plurality of first information and the beam failure recovery request message may be understood as: the plurality of first information correspond to the same first resource, that is, the plurality of second resources correspond to the same first resource, that is, when the same first resource is used to transmit the beam failure recovery request message, different second resources can be used to transmit the uplink channel. Or, it can be said that the beam failure recovery request message corresponds to one more first information.

In this case, in S404, when the terminal device determines the first information corresponding to the beam failure recovery request message according to the corresponding relationship in the configuration information, it may determine a plurality of pieces of first information corresponding to the beam failure recovery request message, and at this time, the terminal device needs to determine target first information from the plurality of pieces of first information, so as to send an uplink channel according to the target first information.

The determining, by the terminal device, the target first information from the plurality of first information may include: different second beams correspond to different uplink channels, or different second beams correspond to different second resources, or different second beams correspond to different first information, and then the terminal device determines information of second resources in the plurality of first information according to the determined second beams; if the determined second beam is the beam #2, the second resource indicated by the target first information is used for transmitting the PUCCH #2 corresponding to the beam # 2.

Or, the determining, by the terminal device, the target first information from the plurality of first information may include: the target first information is determined by an identity of the first cell. For example, different cells may correspond to different first information, and if the terminal device performs beam failure recovery in Cell #1, the second resource indicated by the target first information is used to transmit PUCCH #1 corresponding to Cell # 1; and if the terminal equipment performs beam failure recovery in the cell #2, the second resource indicated by the target first information is used for transmitting PUCCH #1 corresponding to the cell # 1.

The communication method of another embodiment of the present application may include S501 to S506.

S501 to S506 may refer to S201 to S206, and for brevity, the following description focuses on the differences from S201 to S206 in this embodiment.

The configuration information sent by the network device to the terminal device includes a corresponding relationship between a plurality of first information and a plurality of beam failure recovery request messages, that is, the same beam failure recovery request message may correspond to different first information, and the same first information may correspond to different beam failure recovery request messages.

Each beam failure recovery request message may correspond to a plurality of pieces of first information, and different beam failure recovery request messages may correspond to the same piece of first information. In other words, the configuration information may include a corresponding relationship between a plurality of first resources and a plurality of second resources, each first resource may correspond to a different second resource, and different first resources may correspond to the same second resource.

In this case, the terminal device determines, according to the corresponding relationship in the configuration information, an implementation manner of the first information corresponding to the first beam failure recovery request message, which may refer to S404, and details are not repeated here

It should be understood that the above description is only for the purpose of helping those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. It will be apparent to those skilled in the art that various equivalent modifications or changes may be made in light of the above examples given, for example, some steps in the above-described respective communication methods may not be necessary or some steps may be newly added, etc. Or a combination of any two or more of the above embodiments. Such modifications, variations, or combinations are also within the scope of the embodiments of the present application.

It should also be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should also be understood that in the embodiment of the present application, "preset" or "predefined" may be implemented by saving a corresponding code, table, or other means that can be used to indicate related information in advance in a device (for example, including a terminal device and a network device), and the present application is not limited to a specific implementation manner thereof.

It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.

The above detailed description is directed to examples of communication methods provided herein. It is understood that the terminal device and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The communication apparatus provided by the present application will be described below.

Fig. 3 shows a schematic structural diagram of a communication device provided in the present application, where the communication device 300 includes: a communication unit 310 and a processing unit 320.

The communication unit 310 is configured to receive configuration information, where the configuration information includes a correspondence between the beam failure recovery request message and the first information.

The processing unit 320 is configured to detect a first beam failure in the first cell.

The communication unit 310 is further configured to transmit the beam failure recovery request message in the second cell.

The processing unit 320 is further configured to determine the first information corresponding to the beam failure recovery request message according to the corresponding relationship in the configuration information.

The communication unit 310 is further configured to send, in the second cell, an uplink channel according to the first information, where the uplink channel carries information of the second beam in the first cell.

Optionally, the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

Optionally, the uplink channel includes a physical uplink control channel or a physical uplink shared channel.

Optionally, the first information includes first indication information and second indication information, the first indication information is used to indicate a time interval between the communication apparatus transmitting the beam failure recovery request message and the uplink channel, and the second indication information is used to indicate information of a target beam used by the communication apparatus to transmit the uplink channel.

The communication unit 3101 is specifically configured to: and according to the first information, after the beam failure recovery request message is sent, the target beam is used for sending the uplink channel after the time interval.

Optionally, the configuration information further includes second information, where the second information is used to indicate that the communication apparatus transmits the beam failure recovery request message in the second cell when detecting the beam failure in the first cell.

Wherein the communication unit 310 is specifically configured to: and sending the beam failure recovery request message in the second cell according to the second information in the configuration information.

Optionally, the configuration information further includes third information, where the third information is used to indicate a resource used by the communication apparatus in the second cell to transmit the beam failure recovery request message.

Wherein the communication unit 310 is specifically configured to: and according to the third information in the configuration information, the beam failure recovery request message is sent by using the resource in the second cell.

Alternatively, the communication unit 310 may include a receiving unit (module) and a transmitting unit (module) for performing the "receiving" step and the "transmitting" step performed by the terminal device in the foregoing respective communication methods, respectively.

Optionally, the communication device 300 may further include a storage unit for storing instructions executed by the communication unit 310 and the processing unit 320.

The communication apparatus 300 may be a terminal device or a chip in the terminal device. When the communication device is a terminal equipment, the processing unit may be a processor and the communication unit may be a transceiver. The terminal device may further include a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the terminal equipment to execute the method. When the communication device is a chip within a terminal equipment, the processing unit may be a processor, and the communication unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes the instructions stored in the storage unit (e.g., register, cache memory, etc.) in the chip or the storage unit (e.g., read-only memory, random access memory, etc.) outside the chip) in order to make the communication device execute the operations performed by or in the terminal device in the above-mentioned communication methods

As will be clearly understood by those skilled in the art, when the steps executed by the communication apparatus 300 and the corresponding beneficial effects are described in relation to the terminal device in the above-mentioned communication methods, for brevity, detailed description is omitted here.

It is to be understood that the communication unit 310 may be implemented by a transceiver and the processing unit 320 may be implemented by a processor. The storage unit may be implemented by a memory. As shown in fig. 4, the communication device 400 may include a processor 410, a memory 420, and a transceiver 430.

The communication apparatus 300 shown in fig. 3 or the communication apparatus 400 shown in fig. 4 can implement the steps performed by the terminal device in each of the aforementioned communication methods, and similar descriptions can refer to the descriptions in the aforementioned corresponding methods. To avoid repetition, further description is omitted here.

Fig. 5 shows a schematic structural diagram of another communication device provided in the present application, where the communication device 500 includes a communication unit 510 and a processing unit 520.

The communication unit 510 is configured to send configuration information, where the configuration information includes a correspondence between the first information and the beam failure recovery request message.

The communication unit 510 is further configured to receive the beam failure recovery request message in a second cell.

The processing unit 520 is configured to determine, in response to the beam failure recovery request message, the first information corresponding to the beam failure recovery request message according to the corresponding relationship in the configuration information.

The communication unit 510 is further configured to receive an uplink channel according to the first information, where the uplink channel carries information of the second beam in the first cell.

Optionally, the first information includes first indication information and/or second indication information, where the first indication information is used to indicate a time interval between the terminal device sending the beam failure recovery request message and sending the uplink channel, and the second indication information is used to indicate information of a target beam used by the terminal device sending the uplink channel.

Wherein the communication unit 510 is specifically configured to: and receiving the uplink channel transmitted by the terminal device by using the target beam after the time interval elapses according to the first information after receiving the beam failure recovery request message.

Optionally, the configuration information further includes second information, where the second information is used to indicate that the terminal device sends the beam failure recovery request message in the second cell when detecting a beam failure in the first cell.

Optionally, the configuration information further includes third information, where the third information is used to indicate a resource used by the terminal device to send the beam failure recovery request message in the second cell.

Optionally, the information of the second beam includes at least one of the following information: an identity of the second beam, a quality of the second beam, an identity of a carrier component corresponding to the second beam, an identity of a bandwidth portion corresponding to the second beam, or a type of reference signal corresponding to the second beam.

Optionally, the identifier of the second beam is a global identifier of the second beam.

Alternatively, the communication unit 510 may include a receiving unit (module) and a transmitting unit (module) for performing the "transmitting" step and the "receiving" step performed by the network device in the foregoing respective communication methods. Optionally, the communication device 500 may further include a storage unit for storing instructions executed by the communication unit 510 and the processing unit 520.

The communication apparatus 500 may be a network device or a chip in the network device. When the communication device is a network device, the processing unit may be a processor and the communication unit may be a transceiver. The network device may further comprise a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the network device to execute the method. When the apparatus is a chip within a network device, the processing unit may be a processor, the communication unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache, etc.) within the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) outside the chip in the network device, so as to cause the network device to perform the operations performed by the network device in the methods.

As will be apparent to those skilled in the art, when the steps performed by the communication apparatus 500 and the corresponding beneficial effects are described in the foregoing description of the network devices in each communication method, for brevity, detailed description is omitted here.

It is to be understood that the communication unit 510 may be implemented by a transceiver and the processing unit 520 may be implemented by a processor. The storage unit may be implemented by a memory. As shown in fig. 6, the communication device 600 may include a processor 610, a memory 620, and a transceiver 630.

The communication apparatus 500 shown in fig. 5 or the communication apparatus 600 shown in fig. 6 can implement the steps performed by the network device in each of the aforementioned communication methods, and similar descriptions can refer to the descriptions in the aforementioned corresponding methods. To avoid repetition, further description is omitted here.

The network device in the above-mentioned respective apparatus embodiments completely corresponds to the terminal device and the network device or the terminal device in the method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) method executes the steps of transmitting and/or receiving in the method embodiments, and other steps except for transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The sending unit and the receiving unit can form a transceiving unit, and the transmitter and the receiver can form a transceiver to realize transceiving function together; the processor may be one or more.

It should be understood that the above division of the units is only a functional division, and other division methods may be possible in actual implementation.

The terminal device or the network device may be a chip, the processing unit may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processing unit may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processing unit may be a general-purpose processor implemented by reading software code stored in a memory unit, which may be integrated in the processor or located external to the processor.

Fig. 7 is a schematic structural diagram of a terminal device 700 provided in the present application. For convenience of explanation, fig. 7 shows only main components of the terminal device. As shown in fig. 7, the terminal device 700 includes a processor, a memory, a control circuit, an antenna, and an input-output means.

The processor is mainly configured to process the communication protocol and the communication data, control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device to perform the actions described in the above-mentioned embodiments of the retransmission method. The memory is used primarily for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data.

Those skilled in the art will appreciate that fig. 7 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, where the baseband processor is mainly used to process a communication protocol and communication data, and the central processing unit is mainly used to control the whole terminal device, execute a software program, and process data of the software program. The processor in fig. 7 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit having the transceiving function may be regarded as the transceiving unit 701 of the terminal device 700, and the processor having the processing function may be regarded as the processing unit 702 of the terminal device 700. As shown in fig. 7, the terminal device 700 includes a transceiving unit 701 and a processing unit 702. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Optionally, a device in the transceiver unit 701 for implementing the receiving function may be regarded as a receiving unit, and a device in the transceiver unit 701 for implementing the transmitting function may be regarded as a transmitting unit, that is, the transceiver unit 701 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

The terminal device 700 shown in fig. 7 can implement the processes related to the terminal device in the respective communication method embodiments described above. The operations and/or functions of the modules in the terminal device 700 are respectively for implementing the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.

Fig. 8 is a schematic structural diagram of a network device provided in an embodiment of the present application, which may be a schematic structural diagram of a base station, for example. As shown in fig. 8, the network device 800 may be applied to the system shown in fig. 1, and performs the functions of the network device in the above-described communication method embodiments.

The network device can be applied to a communication system as shown in fig. 1, and performs the functions of the network device in the above method embodiment. The network device 800 may include one or more radio frequency units, such as a Remote Radio Unit (RRU) 801 and one or more baseband units (BBUs) (which may also be referred to as Digital Units (DUs)) 802. The RRU 801 may be referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc., which may include at least one antenna 8011 and a radio frequency unit 8012. The RRU 801 part is mainly used for transceiving radio frequency signals and converting the radio frequency signals and baseband signals, for example, for transmitting the PDCCH and/or PDSCH in the above method embodiments. The BBU802 is mainly used for baseband processing, control of a base station, and the like. The RRU 801 and the BBU802 may be physically disposed together or may be physically disposed separately, i.e., distributed base stations.

The BBU802 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 802 can be used to control the base station to perform the operation flow of the above-described method embodiment with respect to the network device.

In an embodiment, the BBU802 may be formed by one or more boards, and the boards may jointly support a radio access network (e.g., an LTE network) with a single access indication, or may respectively support radio access networks with different access systems (e.g., an LTE network, a 5G network, or other networks). The BBU802 also includes a memory 8021 and a processor 8022, with the memory 8021 being used to store the necessary instructions and data. The processor 8022 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation flow related to the network device in the above method embodiment. The memory 8021 and processor 8022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the network device 800 shown in fig. 8 can implement the various processes related to the network device in the foregoing various communication method embodiments. The operations and/or functions of the modules in the network device 800 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the method embodiments above, and in order to avoid repetition, detailed description is omitted here where appropriate.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to execute the communication method in any one of the method embodiments.

It should be noted that the communication unit in the embodiment of the present application may also be referred to as a transceiver unit (module).

It should be noted that, since one beam corresponds to one or more SSBs or CSI-RSs, and generally one beam may correspond to one SSB or CSI-RS, in the above embodiments, the beam may be replaced by the SSB or CSI-RS.

It should be understood that the processing means may be a chip. For example, the processing device may be a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the present application further provides a communication system, which includes the foregoing sending end device and receiving end device. For example, the sending end device is a network device, and the receiving end device is a terminal device; or, the sending end device is a terminal device, and the receiving end device is a network device.

The embodiment of the present application further provides a computer-readable medium, on which a computer program is stored, and the computer program, when executed by a computer, implements the communication method in any of the above method embodiments.

The embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the communication method in any of the above method embodiments.

An embodiment of the present application further provides a system chip, where the system chip includes: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit can execute computer instructions to enable a chip in the communication device to execute any one of the communication methods provided by the embodiments of the present application.

Optionally, the computer instructions are stored in a storage unit.

Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory or another type of static storage device that can store static information and instructions, a random access memory, and the like.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions according to the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It should be understood that the above describes a method for communication during downlink transmission in a communication system, but the present application is not limited thereto, and optionally, a similar scheme as above may also be adopted during uplink transmission, and details are not described here again to avoid repetition.

The network device in the foregoing various apparatus embodiments completely corresponds to the terminal device and the network device or the terminal device in the method embodiments, and the corresponding modules or units execute the corresponding steps, for example, the sending module (transmitter) method executes the steps sent in the method embodiments, the receiving module (receiver) executes the steps received in the method embodiments, and other steps except sending and receiving may be executed by the processing module (processor). The functionality of the specific modules may be referred to in the respective method embodiments. The transmitting module and the receiving module can form a transceiving module, and the transmitter and the receiver can form a transceiver to realize transceiving function together; the processor may be one or more.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps (step) described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The terms "upstream" and "downstream" appearing in the present application are used to describe the direction of data/information transmission in a specific scenario, for example, the "upstream" direction generally refers to the direction of data/information transmission from the terminal to the network side, or the direction of transmission from the distributed unit to the centralized unit, and the "downstream" direction generally refers to the direction of data/information transmission from the network side to the terminal, or the direction of transmission from the centralized unit to the distributed unit.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not limit the related objects, and the named names may vary according to the circumstances, the context or the usage habit, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

the terminal equipment receives configuration information, wherein the configuration information comprises a corresponding relation between a beam failure recovery request message and first information;

the terminal equipment detects a first beam failure in a first cell;

the terminal equipment sends the beam failure recovery request message in a second cell;

the terminal equipment determines the first information corresponding to the beam failure recovery request message according to the corresponding relation in the configuration information;

and the terminal equipment sends an uplink channel in the second cell according to the first information, wherein the uplink channel carries information of the second beam in the first cell.

2. The communication method according to claim 1, wherein the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

3. The communication method according to claim 1 or 2, wherein the first information includes first indication information and/or second indication information, the first indication information is used for indicating a time interval between the terminal device transmitting the beam failure recovery request message and the uplink channel, and the second indication information is used for indicating information of a target beam used by the terminal device for transmitting the uplink channel;

wherein, the terminal equipment sends an uplink channel according to the first information, including:

and the terminal equipment uses the target beam to send the uplink channel after the time interval is passed after the beam failure recovery request message is sent according to the first information.

4. The communication method according to claim 1 or 2, wherein the configuration information further includes second information, the second information being used for instructing the terminal device to transmit the beam failure recovery request message in the second cell when detecting a beam failure in the first cell;

wherein the sending, by the terminal device, the beam failure recovery request message in the second cell includes:

and the terminal equipment sends the beam failure recovery request message in the second cell according to the second information in the configuration information.

5. The communication method according to claim 1 or 2, wherein the configuration information further includes third information indicating a resource used by the terminal device in the second cell for transmitting the beam failure recovery request message;

and the terminal equipment transmits the beam failure recovery request message in the second cell by using the resource according to third information in the configuration information.

6. A method of communication, comprising:

the method comprises the steps that network equipment sends configuration information, wherein the configuration information comprises a corresponding relation between first information and a beam failure recovery request message;

the network equipment receives the beam failure recovery request message in a second cell;

the network device responds to the beam failure recovery request message, and determines the first information corresponding to the beam failure recovery request message according to the corresponding relation in the configuration information;

and the network equipment receives an uplink channel according to the first information, wherein the uplink channel carries information of the second wave beam in the first cell.

7. The communication method according to claim 6, wherein the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

8. The communication method according to claim 6 or 7, wherein the first information includes first indication information and/or second indication information, the first indication information is used for indicating a time interval between a terminal device transmitting the beam failure recovery request message and transmitting the uplink channel, and the second indication information is used for indicating information of a target beam used by the terminal device for transmitting the uplink channel;

wherein, the receiving, by the network device, the uplink channel according to the first information includes:

and the network equipment receives the uplink channel sent by the terminal equipment by using the target beam after the time interval passes after receiving the beam failure recovery request message according to the first information.

9. The communication method according to claim 6 or 7, wherein the configuration information further includes second information, and the second information is used for instructing a terminal device to transmit the beam failure recovery request message in the second cell when detecting the beam failure in the first cell.

10. The communication method according to claim 6 or 7, wherein the configuration information further includes third information indicating a resource used by the terminal device for transmitting the beam failure recovery request message in the second cell.

11. The communication method according to claim 1 or 2 or 6 or 7, wherein the information of the second beam comprises at least one of the following information: an identity of the second beam, a quality of the second beam, an identity of a carrier component corresponding to the second beam, an identity of a bandwidth portion corresponding to the second beam, or a type of reference signal corresponding to the second beam.

12. A communications apparatus, comprising:

a communication unit, configured to receive configuration information, where the configuration information includes a correspondence between a beam failure recovery request message and first information;

a processing unit configured to detect a first beam failure in a first cell;

the communication unit is further configured to transmit the beam failure recovery request message in a second cell;

the processing unit is further configured to determine the first information corresponding to the beam failure recovery request message according to the corresponding relationship in the configuration information;

the communication unit is further configured to send, in the second cell, an uplink channel according to the first information, where the uplink channel carries information of the second beam in the first cell.

13. The communications apparatus as claimed in claim 12, wherein the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

14. The apparatus according to claim 12 or 13, wherein the first information includes first indication information and/or second indication information, the first indication information is used to indicate a time interval between the apparatus transmitting the beam failure recovery request message and the uplink channel, and the second indication information is used to indicate information of a target beam used by the apparatus transmitting the uplink channel;

wherein the communication unit is specifically configured to: and according to the first information, after the beam failure recovery request message is sent, the target beam is used for sending the uplink channel after the time interval.

15. The communication device according to claim 12 or 13,

the configuration information further includes second information, where the second information is used to instruct a terminal device to send a beam failure recovery request message in the second cell when detecting a beam failure in the first cell;

the communication unit is specifically configured to send the beam failure recovery request message in the second cell according to the second information in the configuration information.

16. The communication device according to claim 12 or 13,

the configuration information further includes third information, where the third information is used to indicate a resource used by the terminal device to send the beam failure recovery request message in the second cell;

wherein the communication unit is specifically configured to send, in the second cell, the beam failure recovery request message using the resource according to third information in the configuration information.

17. A communication apparatus according to claim 12 or 13, wherein the communication apparatus is a terminal device.

18. A communications apparatus, comprising:

a communication unit, configured to send configuration information, where the configuration information includes a correspondence between first information and a beam failure recovery request message;

the communication unit is further configured to receive the beam failure recovery request message in a second cell;

a processing unit, configured to determine, in response to the beam failure recovery request message, the first information corresponding to the beam failure recovery request message according to the correspondence in the configuration information;

the communication unit is further configured to receive an uplink channel according to the first information, where the uplink channel carries information of the second beam in the first cell.

19. The communications apparatus as claimed in claim 18, wherein the first information is one or more of reporting configuration information, resource set information, trigger state information, or information of the uplink channel.

20. The apparatus according to claim 18 or 19, wherein the first information includes first indication information and/or second indication information, the first indication information is used to indicate a time interval between a terminal device transmitting the beam failure recovery request message and transmitting the uplink channel, and the second indication information is used to indicate information of a target beam used by the terminal device for transmitting the uplink channel;

wherein the communication unit is specifically configured to: and receiving the uplink channel sent by the terminal equipment by using the target beam after the time interval elapses according to the first information after receiving the beam failure recovery request message.

21. The communication device according to claim 18 or 19,

the configuration information further includes second information, where the second information is used to instruct the terminal device to send the beam failure recovery request message in the second cell when detecting the beam failure in the first cell.

22. The communication device according to claim 18 or 19,

the configuration information further includes third information, where the third information is used to indicate a resource used by the terminal device to send the beam failure recovery request message in the second cell.

23. The communication apparatus according to claim 12 or 13 or 18 or 19, wherein the information of the second beam comprises at least one of the following information: an identity of the second beam, a quality of the second beam, an identity of a carrier component corresponding to the second beam, an identity of a bandwidth portion corresponding to the second beam, or a type of reference signal corresponding to the second beam.

24. A computer-readable medium, characterized by comprising a computer program which, when run on a computer, causes the computer to perform the communication method according to any one of claims 1 to 11.

25. A communication device, comprising: a processor for executing a computer program or instructions in a memory, which when executed by the processor, causes the apparatus to perform the communication method of any one of claims 1 to 5 or causes the apparatus to perform the communication method of any one of claims 6 to 11.

26. A communication apparatus comprising a processor and a memory, the memory having stored therein a computer program or instructions which, when executed by the processor, causes the apparatus to perform the communication method of any one of claims 1 to 5 or causes the apparatus to perform the communication method of any one of claims 6 to 11.