CN115211175B

CN115211175B - Method and device for uplink transmission

Info

Publication number: CN115211175B
Application number: CN202080098082.1A
Authority: CN
Inventors: 管鹏; 颜矛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2023-10-20
Anticipated expiration: 2040-03-13
Also published as: CN115211175A; WO2021179305A1

Abstract

The application provides a method and a device for uplink transmission. The terminal receives a plurality of reference signals sent by the network device, and measures signal quality of the plurality of reference signals, so that a beam corresponding to one reference signal (namely, a second reference signal) is selected from the plurality of reference signals as a downlink beam. In addition, the terminal may further indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals in the measurement report. In other words, the terminal may look for two beams to report to the network device, one for downlink and one for uplink. Therefore, under the condition that the terminal does not meet the beam consistency, the backup uplink beam can be found in advance, so that the network equipment can accurately receive the uplink signal, the situation that uplink beam training is conducted again to find the uplink beam is avoided, and the communication efficiency of the uplink beam is improved.

Description

Method and device for uplink transmission

Technical Field

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

Background

In a high frequency communication system, in order to overcome the path loss, both a network device and a terminal generally use an antenna array having high gain with directivity to form an analog beam for communication. In general, an analog beam is directional, and one analog beam shape (beam pattern) can be described by a main lobe direction and a beam width (e.g., 3 dB), the narrower the beam width, the greater the antenna gain. The network devices and terminals may transmit and receive in specific directions. Taking downlink communication as an example, the network device transmits in a specific direction, and the terminal receives in a specific direction, and normal communication can be realized only if the directions of transmission and reception are aligned. In order to achieve beam alignment (i.e., alignment of the transmit beam at the transmit end with the receive beam at the receive end), beam training is required.

In the third generation partnership project (3rd generation partnership project,3GPP) standard New Radio (NR)) release (R) 15, the network device needs to configure the uplink transmit beam of the terminal by signaling in order to service the uplink transmission. If the uplink transmission beam of the terminal changes, the network device needs a large amount of signaling to reconfigure, resulting in a large signaling overhead. Meanwhile, the frequent use of the high-layer signaling also brings about larger time delay.

In NRR16, in order to reduce overhead and delay of upstream beam management, a plurality of default upstream transmission modes are defined. For example, for a terminal with beam consistency, the uplink transmit beam may refer directly to the downlink beam. Thus, if the downlink wave beam is switched, the network equipment only needs to send the signaling of the downlink wave beam switching, the terminal can automatically follow the switching of the downlink wave beam to update the uplink transmission wave beam and the uplink transmission power of the terminal, and the network equipment does not need to specially send the signaling to inform the switching of the uplink transmission wave beam.

A basic premise of the above R16 scheme is that the terminal has beam consistency. However, in actual communication, beam uniformity of the terminal is not necessarily established. Therefore, in the case where the terminal does not support beam uniformity, or in the case where the supported beam uniformity but the temporary beam uniformity, how the terminal performs uplink transmission needs to be solved.

Disclosure of Invention

The application provides a method and a device for uplink transmission, which can be helpful for realizing uplink transmission under the condition that the wave beams of a terminal are inconsistent, and avoid long time delay or interruption of uplink transmission caused by re-carrying out wave beam training, thereby improving communication efficiency.

In a first aspect, a method for uplink transmission is provided, the method comprising: acquiring an uplink wave beam corresponding to a first reference signal; and sending indication information to the network equipment, wherein the indication information is used for indicating an uplink beam corresponding to the first reference signal.

The terminal acquires an uplink beam corresponding to the first reference signal and informs the network equipment through the indication information. Therefore, under the condition that the terminal does not meet the beam consistency, the backup uplink beam can be found in advance, so that the network equipment can accurately receive the uplink signal, the situation that uplink beam training is conducted again to find the uplink beam is avoided, and the communication efficiency of the uplink beam is improved.

In some possible implementations, the uplink beam corresponding to the first reference signal is a preset uplink beam.

The terminal can inform the network device of the preset uplink beam, and can adopt the preset uplink beam to carry out uplink transmission under the condition that the terminal has MPE problem, so that the network device can accurately receive the uplink signal. I.e. increases the fault tolerance mechanism and thus helps to improve the efficiency of the uplink transmission.

In some possible implementations, the method further includes: receiving a plurality of reference signals; the step of obtaining the uplink beam corresponding to the first reference signal includes: an uplink beam corresponding to the first reference signal of the plurality of reference signals is determined.

The terminal receives a plurality of reference signals transmitted by the network device and measures signal quality of the plurality of reference signals. In this way, the terminal can select one reference signal (i.e. the first reference signal) from the plurality of reference signals, and inform the network device of the uplink beam corresponding to the first reference signal through the indication information, so that the network device can further accurately receive the uplink signal, thereby being beneficial to further improving the efficiency of uplink transmission.

In some possible implementations, the sending the indication information to the network device includes: a first measurement report is sent to the network device measuring the plurality of reference signals, the first measurement report including the indication information.

The terminal can inform the uplink wave beam corresponding to the first reference signal selected by the terminal in a measurement report mode, so that the network equipment can accurately receive the uplink signal, and the uplink transmission efficiency is improved.

In some possible implementations, the method further includes: and sending a second measurement report for measuring the plurality of reference signals to the network equipment, wherein the second measurement report is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

The terminal can inform the terminal of the downlink wave beam corresponding to the second reference signal selected by the terminal in a measurement report mode, so that the communication quality of downlink communication can be improved.

In some possible implementations, the first measurement report and the second measurement report are the same measurement report.

The indication information may be carried in the second measurement report, thereby saving signaling overhead for transmitting the indication information.

In some possible implementations, the measurement report includes first reference signal information for indicating an uplink beam corresponding to the first reference signal and second reference signal information for indicating a downlink beam corresponding to the second reference signal.

In the case where the first measurement report and the second measurement report are the same measurement report (hereinafter, this measurement report is described as an example), the uplink beam corresponding to the first reference signal may be indicated by the first reference signal information, and the downlink beam corresponding to the second reference signal may be indicated by the second reference signal information, that is, this embodiment provides a specific way to implement notification to the network device.

In some possible implementations, the first reference signal information includes a signal identification of the first reference signal or a resource identification of the first reference signal.

The uplink beam corresponding to the first reference signal is indicated by the signal identifier or the resource identifier, so that resource overhead can be reduced compared with the method that the network equipment is informed by identifying the uplink transmission beam and the uplink receiving beam.

In some possible implementations, the first reference signal and the second reference signal have an association relationship, where the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

The uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal may be low-correlation beams, or may be beams formed by different antenna panels, so that interference caused by uplink and downlink transmission is as small as possible, and thus, uplink and downlink transmission efficiency is improved.

In some possible implementations, before the sending of the measurement report to the network device, the method further includes: and receiving indication information from the network equipment, wherein the indication information is used for indicating the terminal to start a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

The network device may send indication information to the terminal to instruct the terminal to turn on the first uplink transmission mode. That is, after receiving the indication information, the terminal may send a measurement report to the network device to indicate an uplink beam corresponding to the first reference signal. Therefore, the network device can flexibly control whether the terminal adopts the first uplink transmission mode to carry out uplink transmission, so that the flexibility of uplink transmission is improved.

In some possible implementations, before receiving the indication information sent from the network device, the method further includes: transmitting first request information to the network device, wherein the first request information is used for requesting to enter the first uplink transmission mode; and/or sending second request information to the network device, where the second request information is used to request to exit from a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

The terminal may send first request information to the network device to request access to the first uplink transmission mode in case it detects an occlusion (i.e. an occlusion exists between the terminal and the network device) or in case it detects that the terminal itself has rotated. That is, the terminal may request a new uplink transmission mode (i.e., the first uplink transmission mode) when determining that the current uplink transmission mode is not suitable, thereby helping to improve the uplink transmission efficiency.

Or, the terminal may inform the network device to exit the second uplink transmission mode when detecting that the current uplink transmission mode (i.e., the second uplink transmission mode) is not suitable, so that the terminal may be facilitated to find a suitable uplink beam, thereby facilitating improvement of uplink transmission efficiency.

In some possible implementations, the sending the second request information to the network device includes: and sending uplink signaling to the network equipment, wherein the uplink signaling is used for indicating that shielding is detected or rotation of a terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

And the terminal can send uplink signaling to the network equipment under the condition of detecting shielding or detecting rotation of the terminal. The uplink signaling can carry the second request information, so that the terminal avoids the special transmission of the second request information, and multiplexes the existing signaling, thereby reducing signaling overhead.

In some possible implementations, the method further includes: transmitting third request information to the network device, where the third request information is used to request to enter a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; and/or sending fourth request information to the network device, where the fourth request information is used to request to exit the first uplink transmission mode.

The terminal may transmit third request information to the network device to request recovery of the second uplink transmission mode in case it detects that the MPE problem disappears. Therefore, the terminal can flexibly switch between the first uplink transmission mode and the second uplink transmission mode, thereby being beneficial to further improving the flexibility of uplink transmission.

Or the terminal can send the fourth request information specifically to request to exit the first uplink transmission mode, so that the first uplink transmission mode is still used under the condition that the MPE problem disappears, that is, the transmission efficiency of uplink transmission is further improved.

In some possible implementations, before the sending of the measurement report to the network device, the method further includes: and receiving capability information, wherein the capability information is used for indicating the terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

The terminal may report in advance to the network device whether itself supports the first uplink transmission mode. For example, in the case where the capability information supports the first uplink transmission mode, the network device may send the above indication information to the terminal. Therefore, the problem that the network equipment still configures and starts the first uplink transmission mode for the terminal to cause waste of signaling or resources under the condition that the terminal does not support the first uplink transmission mode is avoided.

In some possible implementations, the first uplink transmission mode includes at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a first uplink transmission mode of a sounding reference signal SRS.

The first uplink transmission mode can be set for all uplink signals, or can be set for different uplink signals respectively, so that the flexibility of uplink transmission is further improved.

In some possible implementations, the method further includes: and adopting an uplink wave beam corresponding to the first reference signal to carry out uplink communication with the network equipment.

The terminal performs uplink communication with the network equipment by adopting an uplink wave beam corresponding to the first reference signal, thereby improving the efficiency of uplink transmission.

In some possible implementations, the method further includes: determining uplink transmission power according to the path loss of the first reference signal; and carrying out uplink communication with the network equipment according to the uplink transmission power.

The terminal can determine the path loss of the first reference signal, determine the uplink transmission power according to the path loss of the first reference signal, and further perform uplink communication with the network device according to the uplink transmission power and the uplink beam corresponding to the first reference signal, thereby improving the transmission efficiency of uplink transmission and the transmission quality of uplink transmission.

In a second aspect, a method for uplink transmission is provided, where the method includes: and receiving indication information from the terminal, wherein the indication information is used for indicating an uplink beam corresponding to the first reference signal.

And the network equipment receives the uplink beam corresponding to the indication first reference signal and takes the uplink beam as a backup uplink beam of the terminal. In this way, when the terminal does not satisfy the beam consistency, the uplink signal can be transmitted by the backup beam. Accordingly, the network device can accurately receive the uplink signal according to the indication information, thereby being beneficial to improving the efficiency of uplink transmission.

The terminal can inform the network device of the preset uplink beam, and can adopt the preset uplink beam to carry out uplink transmission under the condition that the terminal has MPE problem, so that the network device can accurately receive the uplink signal of the terminal. I.e. increases the fault tolerance mechanism and thus helps to improve the efficiency of the uplink transmission.

In some possible implementations, the method further includes: a plurality of reference signals are transmitted, the first reference signal being one of the plurality of reference signals.

In some possible implementations, the receiving the indication information from the terminal includes: a first measurement report is received from the terminal, the first measurement report including the indication information, the first measurement report being obtained by measuring the plurality of reference signals.

In some possible implementations, the method further includes: and receiving a second measurement report from the terminal, wherein the second measurement report is obtained by measuring the plurality of reference signals, and the second measurement report is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

Or, the terminal may inform the network device to exit the second uplink transmission mode when detecting that the current uplink transmission mode (i.e., the second uplink transmission mode) is not suitable, so that the terminal may be facilitated to find a suitable uplink beam, thereby improving uplink transmission efficiency.

The uplink signaling can carry the second request information, so that the terminal avoids the special transmission of the second request information, and multiplexes the existing signaling, thereby reducing signaling overhead.

The terminal may determine the path loss of the first reference signal, determine uplink transmission power according to the path loss of the first reference signal, and perform uplink communication with the network device according to the uplink transmission power and an uplink beam corresponding to the first reference signal.

In a third aspect, a method for uplink transmission is provided, the method comprising: determining second request information, wherein the second request information is used for requesting to exit from a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; the second request information is sent to the network device.

The terminal can send the second request information to the network device and request the network device to exit the second uplink transmission mode, so that the terminal can flexibly find uplink beams, and the flexibility of uplink transmission is improved.

In some possible implementations, the sending the second request information to the network device includes: and sending the second request information to the network equipment in the case of detecting shielding or detecting rotation of the terminal.

Under the condition that the terminal detects that the current uplink transmission mode (namely the second uplink transmission mode) is unsuitable, the terminal can inform the network equipment to exit the second uplink transmission mode, so that the terminal can be helped to find a suitable uplink wave beam, and the efficiency of uplink transmission can be improved.

In some possible implementations, the method further includes: and sending first request information to the network equipment, wherein the first request information is used for requesting to enter a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

In some possible implementations, before the sending the second request information to the network device, the method further includes: and sending capability information, wherein the capability information is used for indicating the terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

In a fourth aspect, a method for uplink transmission is provided, the method including: and receiving second request information from the terminal, wherein the second request information is used for requesting to exit from a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

The network device receives the second request information sent by the terminal, and the second request information can request the network device to exit the second uplink transmission mode, so that the terminal can be helped to flexibly find uplink beams, and the flexibility of uplink transmission is improved.

In some possible implementations, the receiving the second request information from the terminal includes: and receiving uplink signaling from the terminal, wherein the uplink signaling is used for indicating that shielding is detected or rotation of the terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

In some possible implementations, the method further includes: and receiving first request information from the terminal, wherein the first request information is used for requesting to enter a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

In some possible implementations, the method further includes: receiving third request information from the terminal, wherein the third request information is used for requesting to enter a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; and/or receiving fourth request information from the terminal, where the fourth request information is used to request to exit the first uplink transmission mode.

In some possible implementations, the method further includes: and receiving capability information, wherein the capability information is used for indicating the terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

In a fifth aspect, an apparatus for uplink transmission is provided, where the apparatus may be a terminal, or may be a chip in the terminal. The apparatus has the functionality to implement the first or third aspect described above, as well as various possible implementations. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: and a transceiver module. Optionally, the apparatus may further comprise a processing module. The transceiver module may include a receiving module and a transmitting module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module may execute the instructions stored in the storage module or the instructions from other sources, so that the apparatus performs the communication method of the first aspect or the third aspect and various possible implementation manners. In this design, the device may be a terminal.

In another possible design, when the device is a chip, the chip includes: and a transceiver module. Optionally, the apparatus may further include a processing module, and the transceiver module may include a receiving module and a transmitting module. The transceiver module may be, for example, an input/output interface, pins or circuitry on the chip, etc. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the terminal to perform the above-described first or third aspects, as well as any possible implementation of the communication method. Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, cache, or the like. The memory module may also be a static memory device, random access memory (random access memory, RAM) or the like, located within the communication device, but external to the chip, such as read-only memory (ROM) or other type of static memory device that may store static information and instructions.

The processor referred to in any of the foregoing may be a general purpose Central Processing Unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of the programs in the communication methods of the foregoing aspects.

In a sixth aspect, an apparatus for uplink transmission is provided, where the apparatus may be a network device, or may be a chip in the network device. The apparatus has the functionality to implement the second or fourth aspect described above, as well as various possible implementations. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: and a transceiver module. Optionally, the apparatus may further include a processing module, and the transceiver module may include a receiving module and a transmitting module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and may include a radio frequency circuit or an antenna. The processing module may be a processor.

Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module may execute instructions stored in the storage module or derived from other instructions to cause the apparatus to perform the method of the second aspect or the fourth aspect, or any one of them.

In another possible design, when the device is a chip, the chip includes: and a transceiver module. Optionally, the apparatus may further include a processing module, and the transceiver module may include a receiving module and a transmitting module. The transceiver module may be, for example, an input/output interface, pins or circuitry on the chip, etc. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the network device to perform the second or fourth aspects described above, as well as any possible implementation of the communication method.

Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, cache, or the like. The memory module may also be located within the communication device but external to the chip, such as ROM or other type of static storage device, RAM or the like, which may store static information and instructions.

The processor mentioned in any of the above may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the programs of the communication methods of the above aspects.

In a seventh aspect, a computer storage medium is provided, in which a program code is stored, the program code being for instructing the execution of the instructions of the method of the first or third aspect, and any possible implementation thereof.

In an eighth aspect, a computer storage medium is provided, in which a program code is stored, the program code being for instructing the execution of the instructions of the method in the second or fourth aspect, and any possible implementation thereof.

In a ninth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first or third aspect described above, or any possible implementation thereof.

In a tenth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the second or fourth aspect described above, or any possible implementation thereof.

In an eleventh aspect, there is provided a communication system comprising the apparatus of the fifth aspect and the apparatus of the sixth aspect.

Based on the above technical solution, the terminal receives a plurality of reference signals sent by the network device, and measures signal quality of the plurality of reference signals, so as to select a beam corresponding to one reference signal (i.e. the second reference signal) from the plurality of reference signals as a downlink beam. In addition, the terminal may further indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals in the measurement report. In other words, the terminal may look for two beams to report to the network device, one for downlink and one for uplink. Therefore, under the condition that the terminal does not meet the beam consistency, the backup uplink beam can be found in advance, so that the network equipment can accurately receive the uplink signal, the situation that uplink beam training is conducted again to find the uplink beam is avoided, and the communication efficiency of the uplink beam is improved.

Drawings

FIG. 1 is a schematic diagram of a communication system of the present application;

fig. 2 is a schematic flow chart of a method of uplink transmission in a conventional scheme;

fig. 3 is a schematic flow chart of a method for uplink transmission according to an embodiment of the present application;

fig. 4 is a schematic diagram of a method for uplink transmission according to an embodiment of the present application;

fig. 5 is a schematic flow chart of a method for uplink transmission according to another embodiment of the present application;

fig. 6 is a schematic flow chart of a method for uplink transmission according to yet another embodiment of the present application;

fig. 7 is a schematic block diagram of an apparatus for uplink transmission according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to an embodiment of the present application;

fig. 9 is a schematic block diagram of an apparatus for transmitting a random access preamble in accordance with another embodiment of the present application;

fig. 10 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;

fig. 11 is a schematic diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;

fig. 12 is a schematic diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;

fig. 13 is a schematic diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;

Fig. 14 is a schematic diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application.

Detailed Description

The technical scheme of the 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, such as: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, future fifth generation (5th generation,5G) system, or New Radio (NR), etc.

A terminal in an embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent, or a user equipment. The terminal may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (public land mobile network, PLMN), etc., as embodiments of the present application are not limited in this respect.

The network device in the embodiment of the present application may be a device for communicating with a terminal, which may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved NodeB (eNB or eNodeB) in an LTE system, a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or a relay station, an access point, a vehicle device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, one or a group (including a plurality of antenna panels) of base stations in a 5G system, or a network node forming a gNB or a transmission point, such as a baseband unit (BBU), or a Distributed Unit (DU), or the present application is not limited thereto.

In some deployments, the gNB may include a Centralized Unit (CU) and DUs. The gNB may also include an active antenna unit (active antenna unit, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB. For example, the CU is responsible for handling non-real time protocols and services, implementing the functions of the radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (media access control, MAC) and Physical (PHY) layers. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which the present application is not limited to.

In an embodiment of the present application, a terminal or a network device includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (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 processes 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 book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as the communication can be performed by the method provided according to the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, and for example, the execution body of the method provided by the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the 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 encompasses 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, or magnetic strips, etc.), optical disks (e.g., compact disk, CD, digital versatile disk, digital versatile disc, DVD, etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory, EPROM), cards, sticks, or key drives, etc. Additionally, 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.

Fig. 1 is a schematic diagram of a communication system of the present application. The communication system in fig. 1 may include at least one terminal (e.g., terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is used to provide a communication service for a terminal and access the core network, and the terminal may access the network by searching for a synchronization signal, a broadcast signal, etc. transmitted by the network device 70, thereby performing communication with the network. The terminals 10, 20, 30, 40 and 60 in fig. 1 may perform uplink and downlink transmission with the network device 70. For example, the network device 70 may transmit downlink signals to the terminals 10, 20, 30, 40 and 60, or may receive uplink signals transmitted from the terminals 10, 20, 30, 40 and 60.

The terminals 40, 50 and 60 may be regarded as one communication system, and the terminals 60 may transmit downlink signals to the terminals 40 and 50 or may receive uplink signals transmitted from the terminals 40 and 50.

It should be noted that the embodiment of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in this respect.

It should be appreciated that the network devices included in the communication system may be one or more. A network device may send data or control signaling to one or more terminals. Multiple network devices may also send data or control signaling to one or more terminals simultaneously.

The following detailed description of the terms involved in the present application will be given:

1. beam (beam):

the beam may be embodied in the NR protocol as a spatial filter (spatial domain filter), or spatial filter, or spatial parameter (spatial parameter). The beam used to transmit the signal may be referred to as a transmit beam (transmission beam, tx beam), may be referred to as a spatial transmit filter (spatial domain transmission filter) or spatial transmit parameters (spatial transmission parameter); the beam used to receive the signal may be referred to as a receive beam (Rx beam), may be referred to as a spatial receive filter (spatial domain receive filter) or spatial receive parameters (spatial RX parameter).

The transmit beam may refer to a distribution of signal strengths formed in spatially different directions after signals are transmitted through the antennas, and the receive beam may refer to a distribution of signal strengths of wireless signals received from the antennas in spatially different directions.

Furthermore, 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 or other technique. The beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, or a hybrid digital/analog beamforming technique, etc.

The beam generally corresponds to a resource, for example, when the network device measures the beam, the network device measures different beams through different resources, the terminal feeds back the measured quality of the resource, and the network device knows the quality of the corresponding beam. At the time of data transmission, beam information is also indicated by its corresponding resource. For example, the network device indicates information of the terminal physical downlink shared channel (physical downlink shared channel, PDSCH) beam by means of transmission configuration indication (transmission configuration indication, TCI) resources in the downlink control information (down link control information, DCI).

Alternatively, a plurality of beams having the same or similar communication characteristics are regarded as one beam. One or more antenna ports may be included in a beam for transmitting data channels, control channels, and sounding signals, etc. One or more antenna ports forming a beam may also be considered as a set of antenna ports.

In beam measurement, each beam of the network device corresponds to a resource, and thus the beam to which the resource corresponds can be uniquely identified by an index of the resource.

2. The resource:

in beam measurement, a beam to which a resource corresponds may be uniquely identified by an index of the resource. The resource may be an uplink signal resource or a downlink signal resource. The uplink signals include, but are not limited to, sounding reference signals (sounding reference signal, SRS), demodulation reference signals (demodulation reference signal, DMRS). The downstream signals include, but are not limited to: channel state information reference signals (channel state information reference signal, CSI-RS), cell specific reference signals (cell specific reference signal, CS-RS), UE specific reference signals (user equipment specific reference signal, US-RS), demodulation reference signals (demodulation reference signal, DMRS), and synchronization signals/physical broadcast channel blocks (synchronization system/physical broadcast channel block, SS/PBCH block). Wherein SS/PBCH block may be simply referred to as a synchronization signal block (synchronization signal block, SSB).

The resources are configured by radio resource control signaling (radio resource control, RRC) signaling. In the configuration structure, a resource is a data structure, which includes relevant parameters of the corresponding uplink/downlink signals, such as the type of the uplink/downlink signals, resource grains carrying the uplink/downlink signals, the sending time and period of the uplink/downlink signals, the number of ports used for sending the uplink/downlink signals, and the like. The resources of each uplink/downlink signal have a unique index to identify the resources of the downlink signal. It will be appreciated that the index of a resource may also be referred to as an identification of the resource, and embodiments of the present application are not limited in this regard.

3. Carrier aggregation (carrier aggregation, CA):

the CA may aggregate two or more component carriers (component carrier, CC)) together, so as to achieve a larger transmission bandwidth, and effectively improve the uplink and downlink transmission rate. 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 carriers may also be referred to as carrier components (carrier component, CC).

It is to be understood that the embodiments of the present application may be applied in a multi-carrier or CA scenario.

4. Terminal beam consistency (beam correspondence):

in the case that the terminal can form multiple beams, beam consistency means that the terminal can find an uplink transmission beam according to a downlink reception beam or find a downlink reception beam according to an uplink transmission beam. For example, the terminal may use a beam receiving the downlink signal as an uplink transmission beam for uplink transmission.

The manner in which the terminal finds the uplink transmission beam according to the downlink reception beam may be referred to as "default uplink transmission mode".

5. Maximum exposure allowed value (maximum permissible exposure, MPE):

in use of a mobile phone, excessive electromagnetic energy radiation may be emitted because the transmitting antenna of the mobile phone may be quite close to the brain or other parts of the human body. Therefore, the terminal can ensure that no excessive electromagnetic energy is radiated through the measurement of the specific absorption rate (specific absorption rate, SAR), thereby ensuring the safety of the human body in using the mobile phone. Furthermore, in addition to SAR standards, by deduction from electromagnetic theory, safety standards can also be expressed by MPE. Where MPE is expressed in particular in terms of the field quantity or Power Density (PD) of an electromagnetic field.

The MPE safety value is set so that the corresponding SAR value cannot exceed the limit specification under any exposure condition. For example, at the high frequency band (> 6 GHz), the safety standard is commonly expressed as MPE, which is limited to 11 milliwatts per square centimeter (mW/cm 2) by the Federal communications Commission (federal communications commission, FCC). Wherein the radiation intensity is affected by both the transmit power and the transmit antenna gain. The radiation intensity estimation allows time-domain averaging, with averaging times varying from 2s to 6 min.

It should be noted that, in the embodiment of the present application, the radiation intensity caused by the signal transmitted by the terminal exceeds MPE may be represented by 'MPE problem' or 'MPE risk'. For convenience of description, the following examples will be described by taking "MPE problem" as an example, but the present application is not limited thereto.

6. Uplink transmission:

the uplink transmission in the embodiment of the present application may refer to transmission of an uplink data channel (physical uplink shared channel, PUSCH), transmission of an uplink control channel (physical uplink control channel, PUCCH), or transmission of an uplink sounding reference signal (sounding reference signal, SRS). Specifically, the network device may schedule PUSCH through DCI format 0 0, and open a default uplink transmission mode through enabledefaultstreamplforpusch 0_0, that is, the terminal uses a reception beam of the downlink control channel as a transmission beam of PUSCH, and uses a reference signal corresponding to the downlink control channel as a path loss estimation reference signal for transmitting PUSCH. The network device may also turn on a default uplink transmission mode through an enable defaultstreamplatforpucch, that is, the terminal uses a reception beam of the downlink control channel as a transmission beam of the PUCCH, and uses a reference signal corresponding to the downlink control channel as a path loss estimation reference signal for transmitting the PUCCH. The network device may also turn on a default uplink transmission mode through an enable default tbeamplforsrs, that is, the terminal uses a receiving beam of the downlink control channel as a transmitting beam of the SRS, and uses a reference signal corresponding to the downlink control channel as a path loss estimation reference signal for transmitting the SRS.

It is understood that the reception beam of the downlink control channel and the reference signal corresponding to the downlink control channel may be specified by a protocol.

It should be noted that, as the technology is continuously developed, the terms of the embodiments of the present application may be changed, but all the terms are within the protection scope of the present application.

Fig. 2 shows a schematic flow chart of a method of uplink transmission in a conventional scheme.

The terminal sends capability information to the network device 201.

Specifically, the capability information is used to indicate whether the terminal has beam consistency or whether the terminal needs to obtain beam consistency by uplink beam scanning. In addition, the capability information may further include whether the terminal supports a default uplink transmission mode. The default uplink transmission mode may specifically be at least one of a default transmission mode of PUSCH, a default transmission mode of PUCCH, or a default transmission mode of SRS.

202, the network device sends configuration information to the terminal, the configuration information being used to indicate the relevant configuration of beam training.

Specifically, the configuration information may be used to configure resources for downlink transmission.

It can be appreciated that the configuration information can also be used to configure the terminal to turn on a default uplink transmission mode.

203, the network device transmits a plurality of reference signals to the terminal.

The terminal performs measurements on the plurality of reference signals 204.

The terminal sends 205 a measurement report to the network device, the measurement report being used to indicate the selected downlink beam.

206, the network device may also send indication information to the terminal, where the indication information is used to instruct the terminal to update the receiving beam of the downlink control channel.

And 207, the terminal determines an uplink wave beam according to the default uplink transmission mode, and transmits an uplink signal to the network equipment by adopting the uplink wave beam.

That is, in the conventional scheme, in order to reduce overhead and delay of uplink beam management, a plurality of default uplink transmission modes are defined. For terminals with beam consistency, the uplink transmit beam may refer directly to the downlink beam. Thus, if the downlink wave beam is switched, the network equipment only needs to send the signaling of the downlink wave beam switching, the terminal can automatically follow the switching of the downlink wave beam to update the uplink wave beam and the sending power of the terminal, and the network equipment does not need to specially send the signaling to inform the switching of the uplink wave beam. A basic premise of the above R16 scheme is that the terminal has beam consistency. However, in actual communication, beam uniformity of the terminal is not necessarily established.

For example, due to the weak capability of the terminal, the transmit-receive channel calibration is not performed when leaving the factory, which results in incomplete alignment of the directions of the receive beam and the transmit beam, and even large deviation.

As another example, the terminal may support beam consistency under normal conditions, but may need to temporarily distinguish between uplink and downlink beams under certain conditions. One case is: the uplink transmit beam is directed toward the human body, resulting in MPE problems. Due to the shielding of the human body, certain damage can be caused to the human body. In order to reduce the radiation intensity of the uplink signal to the safe range of the human body, the terminal can be realized by reducing the transmission power of the uplink signal, which can cause that the downlink beam can receive the downlink signal, but the uplink signal transmitted by the uplink transmission beam corresponding to the downlink beam can not reach the network equipment, namely, the beam consistency is temporarily destroyed. Another case is: the terminal moves or rotates during the process from receiving the downlink control channel to carrying out uplink transmission, so that the beam consistency is temporarily destroyed.

Therefore, in the case where the terminal does not support beam uniformity, or in the case where the supported beam uniformity but the temporary beam uniformity, how the terminal performs uplink transmission needs to be solved.

Fig. 3 shows a schematic flow chart of a method for uplink transmission according to an embodiment of the application.

The terminal receives 301 a plurality of reference signals from a network device. Accordingly, the network device transmits the plurality of reference signals to the terminal.

302, the terminal sends a measurement report for measuring the plurality of reference signals to the network device, where the measurement report is used to indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals and is used to indicate a downlink beam corresponding to a second reference signal in the plurality of reference signals. Accordingly, the network device receives the measurement report.

Specifically, the terminal receives a plurality of reference signals sent by the network device, and measures signal quality of the plurality of reference signals, so that a beam corresponding to one reference signal (i.e., a second reference signal) is selected from the plurality of reference signals as a downlink beam. In addition, the terminal may further indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals in the measurement report. In other words, the terminal may look for two beams to report to the network device, one for downlink and one for uplink. Therefore, under the condition that the terminal does not meet the beam consistency, the backup uplink beam can be found in advance, so that the network equipment can accurately receive the uplink signal, the situation that uplink beam training is conducted again to find the uplink beam is avoided, and the communication efficiency of the uplink beam is improved.

It should be noted that, the terminal and the network device may agree on the uplink beam indicated by the measurement report to be used as the backup uplink beam of the terminal. Alternatively, the measurement report may directly indicate that the uplink beam corresponding to the first reference signal is used as a backup uplink beam therein.

It is understood that the terminal may select the second reference signal according to signal quality. For example, the signal quality of the second reference signal meets a preset quality requirement, and more specifically, the signal quality of the second reference signal is the reference signal with the best signal quality among the plurality of reference signals.

It will also be appreciated that the terminal may also select the first reference signal based on signal quality. For example, the first reference signal meets a certain quality requirement, and more specifically, the first reference signal may be a reference signal selected from a plurality of reference signals to have the best signal quality except the second reference signal.

It may also be understood that, in the embodiment of the present application, the uplink beam may be a beam pair link (beam pair link), that is, a communication link formed by a transmission beam for transmitting an uplink signal by a terminal and a reception beam for receiving the uplink signal by a network device.

For example, as shown in fig. 4, in downlink communication, the network device transmits reference signals using beam 1 and beam 2, respectively, and the terminal receives reference signals using beam 3, beam 4, and beam 5. The terminal detects that the signal quality of the reference signal transmitted by beam 2 received with beam 3 is the best (i.e. beam 3 and beam 2 are the downlink beam pair links), while beam 1 and beam 5 can be the backup uplink beam pair links in uplink communications. The terminal informs the network device of the information of the first reference signal (beam 1) and the second reference signal (beam 2) by measurement reporting. In this way, the network device can use the beam 2 as the service beam of the terminal, and perform downlink transmission through the beam 2, and accordingly, the terminal receives a downlink signal by adopting the beam 3. After the terminal receives the downlink signal by using the beam 3, the terminal sends an uplink signal by using the beam 5, and correspondingly, the network device receives the uplink signal by using the beam 1.

It should be noted that, for convenience of description, the reception beam or the transmission beam is not separately described below. In the present application, beam 1 and beam 2 are beams of a network device, and in uplink communication, refer to a reception beam of the network device, and in downlink communication, refer to a transmission beam of the network device. Similarly, beam 3, beam 4, and beam 5 are beams of the terminal, and refer to a transmission beam of the terminal in uplink communication, and refer to a reception beam of the terminal in downlink communication.

It is also understood that the measurement report may also include the signal quality of the first reference signal, or the signal quality of the second reference signal.

Optionally, the measurement report includes first reference signal information and second reference signal information, where the first reference signal information is used to indicate an uplink beam corresponding to the first reference signal, and the second reference signal information is used to indicate a downlink beam corresponding to the second reference signal.

Specifically, the uplink beam corresponding to the first reference signal may be indicated by the first reference signal information, and the downlink beam corresponding to the second reference signal may be indicated by the second reference signal information. For example, the first reference signal information is a signal identification of the first reference signal or a resource identification of the first reference signal. The second reference signal information is a signal identifier of the second reference signal or a resource identifier of the second reference signal.

It is understood that the signal identity of the first reference signal or the second reference signal may be the number of the reference signal. Or the resource identifier of the first reference signal may be an identifier of a resource corresponding to the first reference signal. Accordingly, the resource identifier of the second reference signal may be an identifier of a resource corresponding to the second reference signal.

For example, table 1 shows the relationship among the resource identities (e.g., CSI-RS resource#a, CSI-RS resource#b, CSI-RS resource#c, CSI-RS resource#d), downlink beams (BS TX and UE RX), and measurement reports of the second reference signal of the embodiment of the present application.

TABLE 1

It should be noted that, in order to facilitate the handover of the service beam, multiple sets of such relationships may be established between the network device and the terminal, for example, (CSI-RS resource#c, CSI-RS resource#d) has an association relationship, where CSI-RS resource#c is a reference for downlink communication, and CSI-RS resource#d is a reference for uplink communication; (CSI-RS resource#a, CSI-RS resource#b) has an association relationship in which CSI-RS resource#a is a reference for downlink communication and CSI-RS resource#b is a reference for uplink communication. In this way, when the beam for downlink communication is switched from CSI-RS resource#a to CSI-RS resource#c, the beam for uplink communication is also switched from CSI-RS resource#b to CSI-RS resource#d.

Alternatively, the resource identification may be implemented by the value of a bit.

Specifically, the measurement report includes a plurality of bits, a first portion of the plurality of bits being used to indicate a resource identification of the first reference signal, and a second portion of the plurality of bits being used to indicate a resource identification of the second reference signal.

It will be appreciated that the measurement report may include, in addition to the first and second part bits, a third part bit, the value of which may be used to indicate the quality of the reference signal. As shown in table 2, the format of the measurement report is shown. The resource identifier of the first reference signal may be CSI-RS resource #b, and the resource identifier of the second reference signal may be CSI-RS resource #a.

TABLE 2

It will be appreciated that the reported amount of the measurement report may be configured by the network. The reporting format of the measurement report may be configured by the network device or may be predefined by a protocol.

For example, the value of the bits included in the measurement is 00000011101, and the network device receiving the measurement report may determine that the first two bits 00 represent the resource identifier CSI-RS resource#a of the second reference signal, the middle 7 bits 0000111 are the quality of the CSI-RS resource#a, and the second two bits 01 represent the resource identifier CSI-RS resource#b of the first reference signal (i.e., uplink beam).

Optionally, the first reference signal and the second reference signal have an association relationship.

Specifically, the terminal selecting the second reference signal may be determined according to an association relationship with the first reference signal. For example, the downlink beam corresponding to the second reference signal has an association relationship with the uplink beam corresponding to the first reference signal. The association relationship may be that the downlink beam corresponding to the second reference signal and the uplink beam corresponding to the first reference signal are low-correlation beams; or the association relationship may be that the downlink beam corresponding to the second reference signal and the uplink beam corresponding to the first reference signal are beams formed by different antenna panels.

It will be appreciated that the low correlation beam may be a non-adjacent beam or a beam having a distance less than a predetermined threshold. For example, the terminal may first select a plurality of reference signals as the candidate first reference signals according to the quality threshold requirement, and then select the final first reference signal according to the low correlation beam with the second reference signal. Alternatively, the terminal may first select a plurality of reference signals as the candidate first reference signals according to the low correlation beam with the second reference signal, and then select the final first reference signal according to the quality threshold requirement.

It is further understood that the beam formed by the different antenna panels may be a beam formed by the antenna panels of different terminals, or a beam formed by different antenna panels in the same terminal, which is not limited in this application.

It is further understood that the association relationship between the first reference signal and the second reference signal may be determined by other rules predefined by a protocol or configured by a network device, which is not limited in the present application.

It may also be understood that the terminal may send the association relationship to the network device, or the network device may determine the association relationship between the reference signals by itself.

Optionally, before step 302, the terminal may further receive indication information from the network device, where the indication information may be used to instruct the terminal to start a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is used as an alternative uplink beam, and the uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

Specifically, the network device may send indication information to the terminal to instruct the terminal to start the first uplink transmission mode. That is, after receiving the indication information, the terminal may send a measurement report to the network device to indicate an uplink beam corresponding to the first reference signal. Therefore, the network device can flexibly control whether the terminal adopts the first uplink transmission mode to carry out uplink transmission, so that the flexibility of uplink transmission is improved.

It may be appreciated that the preset reference signal may be a reference signal corresponding to the downlink control channel. In a default uplink transmission mode (i.e., a second uplink transmission mode) of the conventional scheme, the terminal selects a downlink beam corresponding to the second reference signal from the multiple reference signals as a target downlink beam, and uses an uplink beam corresponding to the preset reference signal for uplink transmission according to beam consistency of the terminal. In the first uplink transmission mode, the uplink beam corresponding to the first reference signal indicated to the network device by the terminal through the measurement report is different from the uplink beam corresponding to the preset reference signal, that is, the terminal adopts the uplink beam corresponding to the first reference signal to perform uplink transmission.

It will also be appreciated that the skilled person may also refer to the "first uplink transmission mode" as "enhanced default transmission mode".

It is also understood that the indication information may be carried in any one of DCI, MAC CE or resource control (radio resource control, RRC).

Optionally, before step 301, the terminal sends capability information to the network device, where the capability information is used to instruct the terminal to support the first uplink transmission mode.

Specifically, the terminal may report in advance to the network device whether itself supports the first uplink transmission mode. For example, in the case where the capability information supports the first uplink transmission mode, the network device may send the above indication information to the terminal.

It is to be understood that the capability information may be sent separately or simultaneously with the capability information in step 201 shown in fig. 2, which is not limited by the present application.

Optionally, the first uplink transmission mode in the embodiment of the present application may include at least one of an uplink transmission mode of PUSCH, a first uplink transmission mode of PUCCH, or a first uplink transmission mode of SRS.

Specifically, the first uplink transmission mode may be set for all uplink signals, or may be set for different uplink signals, so as to improve flexibility of uplink transmission.

In one embodiment, before step 302, the terminal may further send first request information to the network device, where the first request information is used to request to enter the first uplink transmission mode.

Specifically, the terminal may send first request information to the network device to request access to the first uplink transmission mode if it detects an occlusion (i.e. an occlusion exists between the terminal and the network device) or if it detects that the terminal itself has rotated. That is, the terminal may request a new uplink transmission mode (i.e., the first uplink transmission mode) when determining that the current uplink transmission mode is not suitable, thereby helping to improve the uplink transmission efficiency.

It may be appreciated that the network device may send the above indication information to the terminal after receiving the first request information from the terminal, to instruct the terminal to turn on the first uplink transmission mode.

In another embodiment, before step 302, the terminal may further send second request information to the network device, where the second request information is used to request to exit the second uplink transmission mode.

Specifically, the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the preset reference signal is used as an alternative uplink beam, i.e. a "default transmission mode". The uplink beam corresponding to the preset reference signal is different from the uplink beam corresponding to the first reference signal. The terminal may send a second request message to the network device to request to exit the second uplink transmission mode if it detects an occlusion (i.e. an occlusion exists between the terminal and the network device) or if it detects that the terminal itself has rotated. Thus, after receiving the second request information, the network device may perform uplink beam training, or send the indication information to the terminal to instruct the terminal to enter the first uplink transmission mode. That is, when the terminal detects that the current uplink transmission mode (i.e., the second uplink transmission mode) is not suitable, the terminal can inform the network device to exit the second uplink transmission mode, so that the terminal can be helped to find a suitable uplink beam, and the uplink transmission efficiency is improved.

It will be appreciated that the terminal may also retransmit the first request information after transmitting the second request information. Or the terminal transmits the second request information after transmitting the first request information. Alternatively, the terminal may only send the first request information, or the terminal may only send the second request information, which is not limited in this application.

It can also be appreciated that the terminal can determine the distance of the human body from the device through the infrared sensor, thereby estimating whether the radiation intensity will generate MPE on the surface of the human body.

For example, if the default mode is turned on, the terminal needs to use the reference signal identifier of QCL type D in the downlink control channel resource set (CORESET) beam indicator (TCI state) to perform uplink signal/channel transmission. However, once in close proximity to the human body, the analog beam of the terminal may pose radiation risks, such as maximum permissible exposure value (MPE) problems. In this case, the default uplink beam may no longer be applicable because the terminal must significantly reduce the uplink transmit power and transmit duty cycle in that beam direction, greatly compromising uplink coverage. One solution is to introduce a terminal initiated exit mechanism so that the base station can learn that the MPE risk occurs at the terminal side. To enable this mechanism and communication after exiting the default mode, the terminal may provide the base station with information about the backup transmit beam via downlink beam reporting. After exiting the default mode, the terminal may use the backup transmit beam for uplink transmission. (If default UL mode is enabled, UE shall transmit UL channels/signals by using the Tx beam corresponding to QCL TypeD RS ID contained in a CORESET TCI state.However, analog beamforming in FR2may create problems if this Tx beam is pointing to human, for example, maximum Permissible Exposure (MPE) issue about RF exposure limitation for safety.Inthis case, the default Tx beam would not be suitable anymore since UE has to limit the maximum uplink duty cycle and uplink power reduction, both of which are harming FR2UL coverage.One solution is to introduce exit mechanism of the default UL mode which can be initiated by UE to let gNB be aware of MPE risk at UE side.to enable this mechanism and to maintain UL communication after the exit, UE should provide backup UL Tx beam information to gNB, for example, via DL beam reporting.After exiting from default mode, UE could use the back up Tx beam for UL transmission.)

It should be noted that the terminal or the network device supports a default uplink mode exit mechanism (support UE-initiated exit mechanism from default UL mode) initiated by the terminal.

Optionally, the terminal sending the second request information to the network device may specifically be that the terminal sends an uplink signaling to the network device, where the uplink signaling is used to indicate that shielding is detected or that rotation of the terminal is detected, and the uplink signaling includes the second request information.

Specifically, the terminal may send uplink signaling to the network device when detecting occlusion or detecting rotation of the terminal. The uplink signaling can carry the second request information, so that the terminal avoids the special transmission of the second request information, and multiplexes the existing signaling, thereby reducing signaling overhead.

It will be appreciated that the terminal may also send the uplink signaling in other cases where it detects that the current uplink beam is unsuitable (i.e. MPE problem), which the application is not limited to.

Alternatively, the uplink signaling may be any one of uplink control information (uplink control link, UCI), medium access control unit (media access control controlelement, MAC CE), and physical uplink shared channel PUSCH.

It is to be understood that the uplink signaling may also be other signaling, which is not limited by the present application. Such as a risk notification message or a request handoff message. The request switching message is used for requesting the network equipment to switch the sending beam of the terminal.

Optionally, the terminal may further send third request information to the network device, where the third request information is used to request to enter the second uplink transmission mode.

Specifically, in case that the MPE problem is detected to be disappeared, the terminal may transmit third request information to the network device to request to resume the second uplink transmission mode. Therefore, the terminal can flexibly switch between the first uplink transmission mode and the second uplink transmission mode, thereby being beneficial to further improving the flexibility of uplink transmission.

Alternatively, the terminal may send fourth request information to the network device, where the fourth request information is used to request to exit the first uplink transmission mode.

Specifically, the terminal may specifically send the fourth request information to request to exit the first uplink transmission mode, so as to avoid that the first uplink transmission mode is still used in the case that the MPE problem disappears.

It may be appreciated that the network device may exit the first uplink transmission mode by default upon receiving the third request information.

The third request information may be sent independently or may be carried in an existing message (for example, UCI, MAC CE, or PUSCH).

It is also understood that the third request message or the fourth request message may be replaced by a "risk release notification", which is not limited in this regard by the present application.

Optionally, the terminal exits the first uplink transmission mode when the timer expires.

Specifically, the terminal may set a timer, and in a time range in which the timer is effective, the terminal performs uplink transmission using the uplink beam determined by the first uplink transmission mode. And when the timer is overtime, the terminal uses the uplink beam determined by the second uplink transmission mode to carry out uplink transmission. This avoids the transmission of signalling and thus saves signalling overhead.

Optionally, after step 302, the terminal performs uplink communication with the network device by using an uplink beam corresponding to the first reference signal, thereby improving uplink transmission efficiency.

Optionally, after step 302, the terminal may determine uplink transmission power according to the path loss of the first reference signal, and perform uplink communication with the network device according to the uplink transmission power.

Specifically, the terminal may determine the path loss of the first reference signal, determine uplink transmission power according to the path loss of the first reference signal, and perform uplink communication with the network device according to the uplink transmission power and an uplink beam corresponding to the first reference signal.

Fig. 5 shows a schematic flow chart of a method for uplink transmission according to another embodiment of the present application.

Unless otherwise specified, the embodiment shown in fig. 5 is the same as the embodiment shown in fig. 3 in the meaning of the same terms.

501, the terminal acquires an uplink beam corresponding to the first reference signal.

In one example, the uplink beam corresponding to the first reference signal may be a preset uplink beam. That is, the terminal may inform the network device of the preset uplink beam, and in case that the terminal has MPE problem, the preset uplink beam may be adopted to perform uplink transmission, that is, a fault tolerance mechanism is increased, so that the efficiency of uplink transmission is improved.

It may be understood that the preset uplink beam may be set by the terminal itself or may be defined by a protocol, which is not limited by the present application.

In another example, the uplink beam corresponding to the first reference signal may be obtained as shown in the scheme shown in fig. 3, that is, the terminal obtains the first reference signal by measuring a plurality of reference signals, which is not described herein for avoiding repetition.

In yet another example, the uplink beam corresponding to the first reference signal may be obtained by performing uplink beam training in advance, which is not limited in the present application.

502, the terminal sends indication information to the network device, where the indication information is used to indicate an uplink beam corresponding to the first reference signal. Accordingly, the network device receives the indication information from the terminal.

Specifically, the terminal sends indication information to the network device, where the indication information indicates an uplink beam corresponding to the first reference signal. That is, the terminal sends the indication information to the network device, which is helpful for the network device to accurately receive the uplink signal, thereby improving the uplink transmission efficiency.

Alternatively, in the case that the first reference signal is obtained by measuring a plurality of reference signals by the terminal, step 502 may specifically be that the terminal sends a first measurement report for measuring the plurality of reference signals to the network device, where the first measurement report includes indication information.

Optionally, the terminal may further send a second measurement report to the network device, where the second measurement report is used to indicate a downlink beam corresponding to the second reference signal.

Specifically, the terminal may further obtain a second reference signal according to the measurement of the multiple reference signals, and inform the network device of the downlink beam corresponding to the second reference signal through a second measurement report.

It will be appreciated that the second measurement report is the same measurement report as the first measurement report, i.e. the same measurement report indicates both the uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal. Or the second measurement report is different from the first measurement report, that is, the uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal are respectively indicated by different measurement reports.

It may be further understood that in the embodiment of the present application, the sequence in which the terminal measures the first reference signal and the second reference signal is not limited.

It should be noted that other implementations shown in fig. 3 may be combined with the implementation shown in fig. 5, which is not limited by the present application.

Fig. 6 shows a schematic flow chart of a method for uplink transmission according to an embodiment of the present application.

Unless otherwise specified, the embodiment shown in fig. 6 is the same as the embodiment shown in fig. 3 or 5 in which the same terms are denoted by the same meanings.

601, the terminal determines second request information, where the second request information is used to request to exit from a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

The terminal sends 602 the second request information to the network device. Accordingly, the network device receives the second request information.

It will be appreciated that, after the terminal performs step 602, reference may be made to steps after the terminal sends the second request information to the network device in the embodiment shown in fig. 3, which are not repeated herein.

Alternatively, step 602 may specifically be that the terminal sends the second request information to the network device in case of detecting occlusion or detecting rotation of the terminal.

It will be appreciated that the terminal may also send the second request message as a result of other motivations, as the application is not limited in this regard.

Alternatively, step 602 may specifically be that the terminal sends uplink signaling to the network device, where the uplink signaling is used to indicate that shielding is detected, or that rotation of the terminal is detected, and the uplink signaling includes the second request information.

It can be understood that the uplink signaling is any one of uplink control information UCI, medium access control unit MAC CE, and physical uplink shared channel PUSCH.

Optionally, the terminal may further send first request information to the network device, where the first request information is used to request to enter a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

It may be understood that after exiting the second uplink transmission mode, the terminal may stop uplink transmission or perform other operations, or may enter the first uplink transmission mode, which is not limited by the present application.

Optionally, after exiting the second uplink transmission mode, the terminal may further use a beam predefined by the protocol to perform uplink transmission. The predefined beam may be one or more of the following: the terminal performs a transmission beam for initial access, the terminal performs a transmission beam for random access, the terminal last uses a transmission beam for random access, the terminal receives a transmission beam corresponding to a reception beam of a system message (including but not limited to a master information block (master information block, MIB), a system message block (system information blocks, SIBs) and the like), the terminal controls a transmission beam corresponding to a reception beam of a control channel resource set with a channel resource set number of 0 (CORESET 0), and a reference signal of QCL type D in a TCI state with a maximum or minimum TCI state ID identifies the corresponding transmission beam.

Optionally, after exiting the second uplink transmission mode, the terminal may further use a path loss reference signal predefined by the protocol to perform path loss estimation. The predefined path loss reference signal may be one or more of: the method comprises the steps of an SS/PBCH in an initial access process of a terminal, an SS/PBCH in a random access use process of the terminal, an SS/PBCH in a last random access use process of the terminal, a reference signal corresponding to a receiving wave beam of a system message (including but not limited to MIB, SIBs and the like) received by the terminal, a reference signal corresponding to a receiving wave beam of a control channel resource set with a terminal control channel resource set number of 0 (CORESET 0), and a reference signal of a QCL type D in a TCI state with a maximum or minimum TCI state ID.

Optionally, the terminal may further send third request information to the network device, where the third request information is used to request to enter a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

Optionally, the terminal may further send fourth request information to the network device, where the fourth request information is used to request to exit the first uplink transmission mode.

Optionally, before the sending the second request information to the network device, the terminal may further receive capability information, where the capability information is used to instruct the terminal to support a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

It should be noted that other implementations shown in fig. 3 may be combined with the implementation shown in fig. 6, which is not limited by the present application.

The various embodiments described herein may be separate solutions or may be combined according to inherent logic, which fall within the scope of the present application.

It will be appreciated that in the foregoing embodiments of the method and operations implemented by the terminal may also be implemented by a component (e.g., a chip or a circuit) available to the terminal, and that the method and operations implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) available to the network device.

The above description has been mainly made on the schemes provided by the embodiments of the present application from the respective interaction points of view. It will be appreciated that each network element, e.g. the transmitting device or the receiving device, in order to implement the above-mentioned functions, comprises corresponding hardware structures and/or software modules for performing each function. Those of skill in the art will 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 implemented as hardware or computer software driven 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 embodiment of the application can divide the function modules of the transmitting end equipment or the receiving end equipment according to the method example, for example, each function module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules described above may be implemented either in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The following description will be given by taking an example of dividing each function module into corresponding functions.

It should be understood that the specific examples of the embodiments of the present application are intended to facilitate a better understanding of the embodiments of the present application by those skilled in the art, and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The method provided by the embodiment of the application is described in detail above with reference to fig. 3, 5 and 6. The following describes in detail the apparatus provided in the embodiment of the present application with reference to fig. 7 to 14. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not described may be referred to the above method embodiments, which are not repeated herein for brevity.

Fig. 7 shows a schematic block diagram of an apparatus 700 for uplink transmission according to an embodiment of the present application.

It is understood that the apparatus 700 may correspond to the respective terminals or chips within the terminals shown in fig. 1, and that the terminals or chips within the terminals in the embodiments shown in fig. 3, 5 and 6 may have any of the functions of the terminals in the method embodiments shown in fig. 3, 5 and 6. For example, the apparatus 700 includes a receiving module 710 and a transmitting module 720.

The receiving module 710 is configured to receive a plurality of reference signals from a network device;

the sending module 720 is configured to send a measurement report for measuring the plurality of reference signals to the network device, where the measurement report is used to indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals, and is used to indicate a downlink beam corresponding to a second reference signal in the plurality of reference signals.

Optionally, the first reference signal information includes a signal identifier of the first reference signal or a resource identifier of the first reference signal.

Optionally, the first reference signal and the second reference signal have an association relationship, where the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

Optionally, the receiving module 710 is further configured to receive indication information from the network device, where the indication information is used to instruct the terminal to start a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

Optionally, the sending module 720 is further configured to send first request information to the network device, where the first request information is used to request to enter the first uplink transmission mode; and/or the sending module 720 is further configured to send second request information to the network device, where the second request information is used to request to exit from a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

Optionally, the sending module 720 is specifically configured to: and sending uplink signaling to the network equipment, wherein the uplink signaling is used for indicating that shielding is detected or rotation of a terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

Optionally, the sending module 720 is further configured to send third request information to the network device, where the third request information is used to request to enter a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; and/or the sending module 720 is further configured to send fourth request information to the network device, where the fourth request information is used to request to exit the first uplink transmission mode.

Optionally, the sending module 720 is further configured to send capability information, where the capability information is used to instruct the terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

Optionally, the first uplink transmission mode includes at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a first uplink transmission mode of a sounding reference signal SRS.

Optionally, the sending module 720 is further configured to use an uplink beam corresponding to the first reference signal to perform uplink communication with the network device.

Optionally, the device further includes a processing module, where the processing module is configured to determine uplink transmission power according to the path loss of the first reference signal;

the sending module 720 is configured to perform uplink communication with the network device according to the uplink sending power.

For a more detailed description of the receiving module 710 and the transmitting module 720, reference may be made to the related description in the above method embodiments, which will not be described here.

Fig. 8 shows a communication device 800 according to an embodiment of the present application, where the device 800 may be a terminal as described in fig. 3, fig. 5 or fig. 6. The apparatus may employ a hardware architecture as shown in fig. 8. The apparatus may include a processor 810 and a transceiver 830, and optionally the apparatus may further include a memory 840, the processor 810, the transceiver 830, and the memory 840 communicating with each other through an internal connection path. The related functions performed by the processing module in fig. 7 may be performed by the processor 810, and the related functions performed by the receiving module 710 and the transmitting module 720 may be performed by the processor 810 controlling the transceiver 830.

Alternatively, the processor 810 may be a general purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), special purpose processor, or one or more integrated circuits for performing the techniques of embodiments of the present application. In the alternative, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip, etc.), execute a software program, and process the data of the software program.

Alternatively, the processor 810 may include one or more processors, including, for example, one or more central processing units (central processing unit, CPU), which may be a single-core CPU or a multi-core CPU in the case where the processor is a CPU.

The transceiver 830 is configured to transmit and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 840 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable memory (erasable programmable read only memory, EPROM), compact disc read-only memory (compact disc read-only memory, CD-ROM), the memory 840 for storing related instructions and data.

Memory 840 is used to store program codes and data for the terminal, either as a separate device or integrated in processor 810.

Specifically, the processor 810 is configured to control the transceiver to perform information transmission with the terminal. Reference may be made specifically to the description of the method embodiments, and no further description is given here.

In a specific implementation, the apparatus 800 may further include an output device and an input device, as an embodiment. The output device communicates with the processor 810 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like. The input device(s) is in communication with the processor 810 and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

It will be appreciated that fig. 8 shows only a simplified design of a communication device. In practical applications, the apparatus may also include other necessary elements, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals capable of implementing the present application are within the scope of the present application.

In one possible design, the device 800 may be a chip, such as a communication chip, usable in a terminal for implementing the functions associated with the processor 810 in the terminal. The chip can be a field programmable gate array for realizing related functions, an application specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, a programmable controller or other integrated chips. In the chip, one or more memories may optionally be included for storing program code that, when executed, causes the processor to perform the corresponding functions.

The embodiment of the application also provides a device which can be a terminal or a circuit. The apparatus may be configured to perform the actions performed by the terminal in the above-described method embodiments.

Fig. 9 shows a schematic block diagram of an apparatus 900 for uplink transmission according to an embodiment of the present application.

It should be understood that the apparatus 900 may correspond to the network device or a chip within the network device shown in fig. 1, or may have any function of the network device in the method in the embodiments shown in fig. 3, 5 and 6. For example, the apparatus 900 includes a transmitting module 910 and a receiving module 920.

The sending module 910 is configured to send a plurality of reference signals to a terminal;

the receiving module 920 is configured to receive a measurement report from the terminal, where the measurement report is used to indicate an uplink beam corresponding to a first reference signal in the plurality of reference signals, and is used to indicate a downlink beam corresponding to a second reference signal in the plurality of reference signals.

Optionally, the receiving module 920 is further configured to receive indication information from the network device, where the indication information is used to instruct the terminal to start a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

Optionally, the receiving module 920 is further configured to receive first request information from the terminal, where the first request information is used to request to enter the first uplink transmission mode; and/or the device further comprises a processing module, and the processing module is used for closing a second uplink transmission mode under the condition that the first request information is received, wherein the second uplink transmission mode is the same transmission mode of an uplink beam corresponding to the first reference signal and an uplink beam corresponding to a preset reference signal.

Optionally, the receiving module 920 is further configured to receive second request information from the terminal, where the second request information is used for requesting to exit from a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; the apparatus further includes a processing module configured to turn off the second uplink transmission mode if the second request information is received.

Optionally, the receiving module 920 is specifically configured to: and receiving uplink signaling from the terminal, wherein the uplink signaling is used for indicating that shielding is detected or rotation of the terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

Optionally, the receiving module 920 is further configured to receive third request information from the terminal, where the third request information is used for requesting to enter a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; or the receiving module 920 is further configured to receive fourth request information from the terminal, where the fourth request information is used to request to exit the first uplink transmission mode.

Optionally, the receiving module 920 is further configured to receive capability information, where the capability information is used to instruct the terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

Optionally, the first uplink transmission mode includes at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of PUCCH, or a first uplink transmission mode of SRS.

For a more detailed description of the transmitting module 910 and the receiving module 920, reference may be made to the related description in the above method embodiments, which are not explained here.

Fig. 10 shows an apparatus 1000 for uplink transmission according to an embodiment of the present application, where the apparatus 1000 may be a network device as shown in fig. 3, fig. 5, or fig. 6. The apparatus may employ a hardware architecture as shown in fig. 10. The apparatus may include a processor 1010 and a transceiver 1020, and optionally the apparatus may further include a memory 1030, the processor 1010, the transceiver 1020, and the memory 1030 communicating with each other through an internal connection path. The related functions performed by the processing module in the embodiment shown in fig. 9 may be performed by the processor 1010, and the related functions performed by the transmitting module 910 and the receiving module 920 may be performed by the processor 1010 controlling the transceiver 1020.

Alternatively, the processor 1010 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), special-purpose processor, or one or more integrated circuits for performing the techniques of embodiments of the present application. In the alternative, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip, etc.), execute a software program, and process the data of the software program.

Alternatively, the processor 1010 may comprise one or more processors, e.g., one or more central processing units (central processing unit, CPU), which in the case of a CPU, may be a single-core CPU or a multi-core CPU.

The transceiver 1020 is used to transmit and receive data and/or signals, as well as to receive data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 1030 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable memory (erasable programmable read only memory, EPROM), and compact disc read-only memory (compact disc read, CD-ROM), the memory 1030 configured to store instructions and data related thereto.

Memory 1030 is used for storing program codes and data for the network device, either as a separate device or integrated in processor 1010.

Specifically, the processor 1010 is configured to control the transceiver to perform information transmission with the terminal. Reference may be made specifically to the description of the method embodiments, and no further description is given here.

In a specific implementation, as an embodiment, the apparatus 1000 may further include an output device and an input device. The output device(s) communicate with the processor 1010 and may display information in a variety of ways. For example, the output device may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like. The input device(s) is in communication with the processor 1010 and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

It will be appreciated that fig. 10 shows only a simplified design of a communication device. In practical applications, the apparatus may also include other necessary elements, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement the present application are within the scope of the present application.

In one possible design, the apparatus 1000 may be a chip, such as a communication chip, for example, that may be used in a network device to implement the functions associated with the processor 1010 in the network device. The chip can be a field programmable gate array for realizing related functions, an application specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, a programmable controller or other integrated chips. In the chip, one or more memories may optionally be included for storing program code that, when executed, causes the processor to perform the corresponding functions.

The embodiment of the application also provides a device which can be network equipment or a circuit. The apparatus may be configured to perform the actions performed by the network device in the method embodiments described above.

Alternatively, when the device in this embodiment is a terminal, fig. 11 shows a simplified schematic structure of the terminal. The terminal is illustrated as a mobile phone in fig. 11 for easy understanding and convenience of illustration. As shown in fig. 11, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user. It should be noted that some kinds of terminals may not have an input/output device.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor is shown in fig. 11. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, as the embodiments of the application are not limited in this respect.

In the embodiment of the application, the antenna and the radio frequency circuit with the receiving and transmitting functions can be regarded as a receiving and transmitting unit of the terminal, and the processor with the processing function can be regarded as a processing unit of the terminal. As shown in fig. 11, the terminal includes a transceiving unit 1110 and a processing unit 1120. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. The processing unit may also be called a processor, a processing board, a processing module, a processing device, etc. Alternatively, the device for implementing the receiving function in the transceiver unit 1110 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1110 may be regarded as a transmitting unit, that is, the transceiver unit 1110 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, transceiver circuitry, or the like. The receiving unit may also be referred to as a receiver, or receiving circuit, among others. The transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that, the transceiver 1110 is configured to perform the transmitting operation and the receiving operation on the terminal side in the above method embodiment, and the processing unit 1120 is configured to perform other operations on the terminal other than the transceiver operation in the above method embodiment.

For example, in one implementation, the processing unit 1120 is configured to perform the processing steps on the terminal side in fig. 3. A transceiver unit 1110, configured to perform the transceiving operations in steps 301 and 302 in fig. 3, and/or the transceiver unit 1110 is further configured to perform other transceiving steps on the terminal side in the embodiment of the present application.

When the device is a chip, the chip comprises a transceiver unit and a processing unit. The receiving and transmitting unit can be an input and output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip.

Alternatively, when the apparatus is a terminal, reference may also be made to the device shown in fig. 12. As an example, the device may perform functions similar to processor 810 in fig. 8. In fig. 12, the apparatus includes a processor 1201, a transmission data processor 1203, and a reception data processor 1205. The processing module in the embodiment shown in fig. 7 described above may be the processor 1201 in fig. 12 and perform the corresponding functions. The transmitting module 720 and the receiving module 710 in the embodiment shown in fig. 7 described above may be the transmitting data processor 1203 and the receiving data processor 1205 in fig. 12. Although a channel encoder, a channel decoder are shown in fig. 12, it is to be understood that these modules are not limiting illustrations of the present embodiment, but are merely schematic.

Fig. 13 shows another form of the present embodiment. The processing device 1300 includes a modulation subsystem, a central processing subsystem, a peripheral subsystem, and the like. The communication device in this embodiment may act as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1303, an interface 1304. Wherein the processor 1303 performs the functions of the processing modules in the embodiment shown in fig. 7, and the interface 1304 performs the functions of the receiving module 710 and the transmitting module 720. As another variation, the modulation subsystem includes a memory 1306, a processor 1303, and a program stored on the memory and executable on the processor, which when executed, implements the methods described in the embodiments. It is noted that the memory 1306 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 1300, as long as the memory 1306 is coupled to the processor 1303.

When the apparatus in this embodiment is a network device, the network device may be as shown in fig. 14, for example, the apparatus 140 is a base station. The base station may be applied to the system shown in fig. 1, and perform the functions of the network device in the above method embodiment. Base station 140 may include one or more DUs 1401 and one or more CUs 1402.CU1402 can communicate with a next generation core Network (NC). The DU1401 may include at least one antenna 14011, at least one radio frequency unit 14011, at least one processor 14013 and at least one memory 14014. The portion of the DU1401 is mainly used for receiving and transmitting radio frequency signals, converting radio frequency signals into baseband signals, and processing a portion of baseband signals. CU1402 may include at least one processor 14022 and at least one memory 14021. Communication between CU1402 and DU1401 may be via an interface, wherein the control plane interface may be Fs-C, such as F1-C, and the user plane interface may be Fs-U, such as F1-U.

The CU 1402 is mainly used for baseband processing, control of a base station, and the like. The DU 1401 and CU 1402 may be physically located together or may be physically separate, i.e. distributed base stations. The CU 1402 is a control center of the base station, and may also be referred to as a processing unit, and is mainly used for completing a baseband processing function. For example, CU 1402 may be configured to control a base station to perform the above-described operation procedures with respect to a network device in the method embodiment.

In particular, baseband processing on CUs and DUs may be divided according to protocol layers of the wireless network, for example, functions of a packet data convergence layer protocol (packet data convergence protocol, PDCP) layer and above are set at CUs, and functions of protocol layers below PDCP, for example, a radio link control (radio link control, RLC) layer and a medium access control (medium access control, MAC) layer are set at DUs. For another example, a CU implements the functions of a radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer, and a DU implements the functions of a radio link control (radio link control, RLC), MAC, and Physical (PHY) layer.

Further, optionally, the base station 140 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein the DU may comprise at least one processor 14013 and at least one memory 14014, the ru may comprise at least one antenna 14011 and at least one radio frequency unit 14011, and the cu may comprise at least one processor 14022 and at least one memory 14021.

For example, in one implementation, the processor 14013 is configured to perform the processing steps on the network device side of fig. 3. A radio frequency unit 14011 for performing the transceiving operations in steps 301 and 302 in fig. 3.

In an example, the CU1402 may be configured by one or more boards, where the boards may support a single access indicated radio access network (such as a 5G network) together, or may support radio access networks of different access schemes (such as an LTE network, a 5G network, or other networks) respectively. The memory 14021 and processor 14022 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU1401 may be formed by one or more single boards, where the multiple single boards may support a single access indicated radio access network (such as a 5G network), or may support radio access networks of different access schemes (such as an LTE network, a 5G network, or other networks). The memory 14014 and processor 14013 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

In the above embodiments, it may be implemented in whole or in part 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 the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. 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 by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more 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 high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

It should be appreciated that the processor may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks 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 embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile 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. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). 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 plural.

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 various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on 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 may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between 2 or more computers. Furthermore, 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 one another 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 also be understood that the first, second, and various numerical numbers referred to herein are merely descriptive convenience and are not intended to limit the scope of embodiments of the present application.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Wherein a or B is present alone, the number of a or B is not limited. Taking a alone as an example, it is understood that there are one or more a.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps 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 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.

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

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within 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 for uplink transmission, comprising:

receiving a plurality of reference signals from a network device;

and sending a measurement report for measuring the plurality of reference signals to the network equipment, wherein the measurement report is used for indicating an uplink beam corresponding to a first reference signal in the plurality of reference signals and is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

2. The method of claim 1, wherein the measurement report includes first reference signal information and second reference signal information, the first reference signal information being used to indicate an uplink beam corresponding to the first reference signal, and the second reference signal information being used to indicate a downlink beam corresponding to the second reference signal.

3. The method of claim 2, wherein the first reference signal information comprises a signal identification of the first reference signal or a resource identification of the first reference signal.

4. A method according to any one of claims 1 to 3, wherein the first reference signal and the second reference signal have an association relationship, and the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

5. The method according to any of claims 1 to 4, wherein before said sending a measurement report to the network device, the method further comprises:

receiving indication information from the network device, where the indication information is used to instruct a terminal to start a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

6. The method of claim 5, wherein prior to receiving the indication information from the network device, the method further comprises:

sending first request information to the network equipment, wherein the first request information is used for requesting to enter the first uplink transmission mode; and/or

And sending second request information to the network equipment, wherein the second request information is used for requesting to exit from a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

7. The method of claim 6, wherein the sending the second request information to the network device comprises:

And sending uplink signaling to the network equipment, wherein the uplink signaling is used for indicating that shielding is detected or rotation of a terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

8. The method according to any one of claims 5 to 7, further comprising:

transmitting third request information to the network device, wherein the third request information is used for requesting to enter a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; and/or

And sending fourth request information to the network equipment, wherein the fourth request information is used for requesting to exit the first uplink transmission mode.

9. The method according to any of claims 1 to 8, wherein before said sending a measurement report to the network device, the method further comprises:

and sending capability information, wherein the capability information is used for indicating a terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

10. The method according to any of claims 5 to 9, wherein the first uplink transmission mode comprises at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a first uplink transmission mode of a sounding reference signal SRS.

11. The method according to any one of claims 1 to 10, further comprising:

and adopting an uplink wave beam corresponding to the first reference signal to carry out uplink communication with the network equipment.

12. The method according to any one of claims 1 to 11, further comprising:

determining uplink transmission power according to the path loss of the first reference signal;

and carrying out uplink communication with the network equipment according to the uplink transmission power.

13. A method for uplink transmission, comprising:

transmitting a plurality of reference signals to a terminal;

and receiving a measurement report from the terminal, wherein the measurement report is used for indicating an uplink beam corresponding to a first reference signal in the plurality of reference signals and is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

14. The method of claim 13, wherein the measurement report includes first reference signal information and second reference signal information, the first reference signal information being used to indicate an uplink beam corresponding to the first reference signal, and the second reference signal information being used to indicate a downlink beam corresponding to the second reference signal.

15. The method of claim 14, wherein the first reference signal information comprises a signal identification of the first reference signal or a resource identification of the first reference signal.

16. The method according to any one of claims 13 to 15, wherein the first reference signal and the second reference signal have an association relationship, and the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

17. The method according to any of claims 13 to 16, characterized in that before said receiving a measurement report from the terminal, the method further comprises:

And sending indication information to the terminal, wherein the indication information is used for indicating the terminal to start a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

18. The method of claim 17, wherein prior to transmitting the indication information to the terminal, the method further comprises:

receiving first request information from the terminal, wherein the first request information is used for requesting to enter the first uplink transmission mode; and/or

And under the condition that the first request information is received, closing a second uplink transmission mode, wherein the second uplink transmission mode is the same transmission mode of an uplink beam corresponding to the first reference signal and an uplink beam corresponding to a preset reference signal.

19. The method of claim 17, wherein prior to transmitting the indication information to the terminal, the method further comprises:

receiving second request information from the terminal, wherein the second request information is used for requesting to exit a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal;

And closing the second uplink transmission mode under the condition that the second request information is received.

20. The method of claim 19, wherein the receiving the second request information from the terminal comprises:

and receiving uplink signaling from the terminal, wherein the uplink signaling is used for indicating that shielding is detected or rotation of the terminal is detected, the uplink signaling comprises the second request information, and the uplink signaling is any one of uplink control information UCI, a media access control unit MAC CE and a physical uplink shared channel PUSCH.

21. The method according to any one of claims 17 to 20, further comprising:

receiving third request information from the terminal, wherein the third request information is used for requesting to enter a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; or (b)

And receiving fourth request information from the terminal, wherein the fourth request information is used for requesting to exit the first uplink transmission mode.

22. The method according to any of claims 13 to 21, characterized in that before said receiving a measurement report from the terminal, the method further comprises:

And receiving capability information, wherein the capability information is used for indicating a terminal to support a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

23. The method according to any one of claims 17 to 22, wherein the first uplink transmission mode comprises at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of PUCCH, or a first uplink transmission mode of SRS.

24. An apparatus for uplink transmission, comprising:

a receiving module, configured to receive a plurality of reference signals from a network device;

and the sending module is used for sending a measurement report for measuring the plurality of reference signals to the network equipment, wherein the measurement report is used for indicating an uplink beam corresponding to a first reference signal in the plurality of reference signals and is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

25. The apparatus of claim 24, wherein the measurement report comprises first reference signal information and second reference signal information, the first reference signal information being used to indicate an uplink beam corresponding to the first reference signal, and the second reference signal information being used to indicate a downlink beam corresponding to the second reference signal.

26. The apparatus of claim 25, wherein the first reference signal information comprises a signal identification of the first reference signal or a resource identification of the first reference signal.

27. The apparatus according to any one of claims 24 to 26, wherein the first reference signal and the second reference signal have an association relationship, and the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

28. The apparatus according to any one of claims 24 to 27, wherein the receiving module is further configured to receive indication information from the network device, where the indication information is used to instruct a terminal to start a first uplink transmission mode, and the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

29. The apparatus of claim 28, wherein the sending module is further configured to send first request information to the network device, the first request information being used to request entry into the first uplink transmission mode; and/or

The sending module is further configured to send second request information to the network device, where the second request information is used to request to exit from a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal.

30. The apparatus of claim 29, wherein the sending module is specifically configured to:

31. The apparatus according to any one of claims 28 to 30, wherein the sending module is further configured to send third request information to the network device, where the third request information is used to request to enter a second uplink transmission mode, where the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; and/or

The sending module is further configured to send fourth request information to the network device, where the fourth request information is used to request to exit the first uplink transmission mode.

32. The apparatus according to any one of claims 24 to 31, wherein the sending module is further configured to send capability information, where the capability information is used to instruct a terminal to support a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

33. The apparatus according to any one of claims 28 to 32, wherein the first uplink transmission mode comprises at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a first uplink transmission mode of a sounding reference signal SRS.

34. The apparatus according to any one of claims 24 to 33, wherein the sending module is further configured to use an uplink beam corresponding to the first reference signal to perform uplink communication with the network device.

35. The apparatus according to any one of claims 24 to 34, further comprising a processing module configured to determine an uplink transmit power according to a path loss of the first reference signal;

And the sending module is used for carrying out uplink communication with the network equipment according to the uplink sending power.

36. An apparatus for uplink transmission, comprising:

a transmitting module, configured to transmit a plurality of reference signals to a terminal;

and the receiving module is used for receiving a measurement report from the terminal, wherein the measurement report is used for indicating an uplink beam corresponding to a first reference signal in the plurality of reference signals and is used for indicating a downlink beam corresponding to a second reference signal in the plurality of reference signals.

37. The apparatus of claim 36, wherein the measurement report comprises first reference signal information and second reference signal information, the first reference signal information being used to indicate an uplink beam corresponding to the first reference signal, and the second reference signal information being used to indicate a downlink beam corresponding to the second reference signal.

38. The apparatus of claim 37, wherein the first reference signal information comprises a signal identification of the first reference signal or a resource identification of the first reference signal.

39. The apparatus according to any one of claims 36 to 37, wherein the first reference signal and the second reference signal have an association relationship, and the association relationship is that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are low correlation beams, or that an uplink beam corresponding to the first reference signal and a downlink beam corresponding to the second reference signal are beams formed by different antenna panels.

40. The apparatus according to any one of claims 36 to 39, wherein the receiving module is further configured to send, to the terminal, indication information, where the indication information is used to instruct the terminal to start a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

41. The apparatus of claim 40, wherein the receiving module is further configured to receive first request information from the terminal, the first request information being for requesting entry into the first uplink transmission mode; and/or

The device further comprises a processing module, wherein the processing module is used for closing a second uplink transmission mode under the condition that the first request information is received, and the second uplink transmission mode is a transmission mode of which the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal.

42. The apparatus of claim 40, wherein the receiving module is further configured to receive second request information from the terminal, the second request information being used for requesting to exit from a second uplink transmission mode, the second uplink transmission mode being a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal;

The device further comprises a processing module, wherein the processing module is used for closing the second uplink transmission mode under the condition that the second request information is received.

43. The apparatus of claim 42, wherein the receiving module is specifically configured to:

44. The apparatus according to any one of claims 40 to 43, wherein the receiving module is further configured to receive third request information from the terminal, where the third request information is used to request to enter a second uplink transmission mode, and the second uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is the same as an uplink beam corresponding to a preset reference signal; or (b)

The receiving module is further configured to receive fourth request information from the terminal, where the fourth request information is used to request to exit the first uplink transmission mode.

45. The apparatus according to any one of claims 36 to 44, wherein the receiving module is further configured to receive capability information, where the capability information is used to instruct a terminal to support a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which an uplink beam corresponding to the first reference signal is different from an uplink beam corresponding to a preset reference signal.

46. The apparatus of any one of claims 40-45, wherein the first uplink transmission mode comprises at least one of a first uplink transmission mode of PUSCH, a first uplink transmission mode of PUCCH, or a first uplink transmission mode of SRS.

47. A communication device comprising a processor, a memory, and a transceiver;

the transceiver is used for receiving signals or transmitting signals;

the memory is used for storing program codes;

the processor for invoking the program code from the memory to perform the method of any of claims 1-23.

48. A communication device, comprising: a processor, when the processor invokes a computer program in memory, to perform the method of any of claims 1 to 23.

49. A communication device, comprising: a memory and a processor; the memory is for storing a computer program, which when invoked by the processor, performs the method of any one of claims 1 to 23.

50. A computer readable storage medium, characterized in that the computer readable storage medium comprises a computer program or instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 23.

51. A chip comprising a processor for performing the method of any one of claims 1 to 23 and a communication interface.

52. A chip comprising a processor, a memory and a communication interface, the memory having stored therein a computer program for execution by the processor to implement the method of any of claims 1 to 23.