WO2021179305A1

WO2021179305A1 - Uplink transmission method and apparatus

Info

Publication number: WO2021179305A1
Application number: PCT/CN2020/079291
Authority: WO
Inventors: 管鹏; 颜矛
Original assignee: 华为技术有限公司
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-09-16
Also published as: CN115211175B; CN115211175A

Abstract

The present application provides an uplink transmission method and apparatus. A terminal receives a plurality of reference signals sent by a 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., a second reference signal) from the plurality of reference signals as a downlink beam. In addition, a terminal can also indicate, in the measurement report, an uplink beam corresponding to a first reference signal in the plurality of reference signals. In other words, the terminal can search for two beams and report same to the network device, one of the beams is used for downlink transmission, and the other is used for uplink transmission. In this way, when a terminal does not satisfy beam consistency, a backup uplink beam can be found in advance, so that the network device can accurately receive an uplink signal, a case of carrying out uplink beam training again for searching for an uplink beam is avoided, and thus the communication efficiency of uplink beams is improved.

Description

Method and device for uplink transmission

Technical field

This application relates to the field of communications, and more specifically, to a method and device for uplink transmission.

Background technique

In high-frequency communication systems, in order to overcome path loss, network equipment and terminals usually use directional high-gain antenna arrays to form analog beams for communication. Generally speaking, analog beams are directional. The main lobe direction and beam width (for example, 3dB) can be used to describe an analog beam pattern. The narrower the beam width, the greater the antenna gain. Network devices and terminals can send and receive in specific directions. Take the following communication as an example. The network device sends in a specific direction, and the terminal receives in a specific direction. Normal communication can only be realized when the sending and receiving directions are aligned. In order to achieve beam alignment (that is, alignment of the transmit beam at the transmitting end and the receive beam at the receiving end), beam training is required.

In the 3rd generation partnership project (3rd generation partnership project, 3GPP) standard new radio (new radio, NR) version (release, R) 15, in order to serve the uplink transmission, the network equipment needs to configure the terminal's uplink transmission through signaling Beam. If the uplink transmission beam of the terminal changes, the network device needs a lot of signaling for reconfiguration, resulting in a large signaling overhead. At the same time, the frequent use of high-level signaling also brings greater time delay.

In NR R16, in order to reduce the overhead and delay of uplink beam management, multiple default uplink transmission modes are defined. For example, for a terminal with beam consistency, the uplink transmission beam can directly refer to the downlink beam. In this way, if there is a downlink beam switching, the network equipment only needs to send downlink beam switching signaling, and the terminal can automatically follow the downlink beam switching and update its own uplink transmission beam and uplink transmission power, without the need for the network equipment to specifically send signals. Command to notify the switching of the uplink transmission beam.

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

Summary of the invention

The present application provides a method and device for uplink transmission, which can help realize uplink transmission when the beams of the terminal are inconsistent, avoiding long delay or interruption of uplink transmission caused by re-beam training, thereby improving Communication efficiency.

In a first aspect, a method for uplink transmission is provided. The method includes: acquiring an uplink beam corresponding to a first reference signal; and sending instruction information to the network device, where the instruction information is used to indicate the Uplink beam.

The terminal obtains the uplink beam corresponding to the first reference signal, and informs the network device through the instruction information. In this way, when 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, avoiding the re-uplink beam training to find the uplink beam, thereby helping to improve the uplink beam performance. Communication efficiency.

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

The terminal can notify the network device of the preset uplink beam, and in the case of an MPE problem with the terminal, the preset uplink beam can be used for uplink transmission, so that the network device can accurately receive the uplink signal. That is, a fault-tolerant mechanism is added, which helps to improve the efficiency of uplink transmission.

In some possible implementation manners, the method further includes: receiving a plurality of reference signals; wherein the obtaining the uplink beam corresponding to the first reference signal includes: determining the uplink beam corresponding to the first reference signal among the plurality of reference signals .

The terminal receives multiple reference signals sent by the network device, and measures the signal quality of the multiple reference signals. In this way, the terminal can select a reference signal (ie, the first reference signal) from the multiple reference signals, and notify 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 Uplink signal, which helps to further improve the efficiency of uplink transmission.

In some possible implementation manners, the sending instruction information to the network device includes: sending a first measurement report for measuring the multiple reference signals to the network device, where the first measurement report includes the instruction information.

The terminal can inform the terminal of the uplink beam corresponding to the first reference signal selected by the measurement report, thereby helping the network device to accurately receive the uplink signal and improving the efficiency of uplink transmission.

In some possible implementation manners, the method further includes: sending a second measurement report for measuring the multiple reference signals to the network device, where the second measurement report is used to indicate that the second reference signal of the multiple reference signals corresponds to The downlink beam.

The terminal can inform the terminal of the downlink beam corresponding to the second reference signal selected by the measurement report, thereby helping to improve the communication quality of the downlink communication.

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

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

In some possible implementations, the measurement report includes first reference signal information and second reference signal information, the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal, and the second reference signal information is used for To indicate the downlink beam corresponding to the second reference signal.

In the case that the first measurement report and the second measurement report are the same measurement report (the “measurement report” is taken as an example below), the uplink beam corresponding to the first reference signal may be indicated by the first reference signal information Yes, 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 method for implementing notification to the network device.

In some possible implementation manners, the first reference signal information includes a signal identifier of the first reference signal or a resource identifier of the first reference signal.

Indicating the uplink beam corresponding to the first reference signal through the signal identifier or the resource identifier can reduce resource overhead compared to notifying the network device through the identifier of the uplink transmission beam and the uplink reception beam.

In some possible implementations, the first reference signal and the second reference signal have an association relationship, and the association relationship is that the uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal are low-correlation beams , Or the uplink beam corresponding to the first uplink reference signal and the 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 can be low-correlation beams, or beams formed by different antenna panels, which helps to minimize the interference of uplink and downlink transmissions, thereby ensuring Helps improve the transmission efficiency of uplink and downlink.

In some possible implementations, before sending the measurement report to the network device, the method further includes: receiving instruction information from the network device, where the instruction information is used to instruct the terminal to enable the first uplink transmission mode, and the first uplink transmission mode The transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.

The network device may send instruction information to the terminal to instruct the terminal to start the first uplink transmission mode. That is, after receiving the indication information, the measurement report sent to the network device by the terminal may be used to indicate the uplink beam corresponding to the first reference signal. Therefore, the network device can flexibly control whether the terminal uses the first uplink transmission mode for uplink transmission, thereby improving the flexibility of uplink transmission.

In some possible implementation manners, before receiving the instruction information sent from the network device, the method further includes: sending 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 sending second request information to the network device, where the second request information is used to request to exit the second uplink transmission mode, and the second uplink transmission mode is the uplink beam corresponding to the first reference signal and the preset The reference signal corresponds to the same transmission mode of the uplink beam.

When the terminal detects obstruction (that is, there is an obstruction between the terminal and the network device), or detects that the terminal itself has rotated, the terminal may send the first request information to the network device to request access to the first uplink transmission mode. That is to say, the terminal may request a new uplink transmission mode (that is, the first uplink transmission mode) when it is determined that the current uplink transmission mode is not appropriate, thereby helping to improve the efficiency of uplink transmission.

Or, when the terminal detects that the current uplink transmission mode (that is, the second uplink transmission mode) is not appropriate, it can inform the network device to exit the second uplink transmission mode, which can help the terminal to find a suitable uplink beam. Helps improve the efficiency of uplink transmission.

In some possible implementation manners, the sending the second request information to the network device includes: sending uplink signaling to the network device, where the uplink signaling is used to indicate that the obstruction is detected or the terminal rotation is detected, and the uplink signaling is detected. The command includes the second request information, and the uplink signaling is any one of uplink control information UCI, medium access control control unit MAC CE, and physical uplink shared channel PUSCH.

The terminal may send uplink signaling to the network device in the case of detecting the obstruction or detecting the rotation of the terminal. The uplink signaling can carry the second request information, so that the terminal avoids sending the second request information specifically, but reuses existing signaling, thereby reducing signaling overhead.

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

When detecting that the MPE problem disappears, the terminal may send third request information to the network device to request the restoration of the second uplink transmission mode. In this way, the terminal can flexibly switch between the first uplink transmission mode and the second uplink transmission mode, which helps to further improve the flexibility of uplink transmission.

Alternatively, the terminal may specifically send the fourth request message to request to exit the first uplink transmission mode, thereby avoiding still using the first uplink transmission mode when the MPE problem disappears, which helps to further improve the transmission efficiency of uplink transmission.

In some possible implementations, before sending the measurement report to the network device, the method further includes: receiving capability information, where the capability information is used to indicate that the terminal supports the first uplink transmission mode, and the first uplink transmission mode is the first uplink transmission mode. The uplink beam corresponding to a reference signal and the uplink beam corresponding to the preset reference signal have different transmission modes.

The terminal may report to the network device in advance whether it supports the first uplink transmission mode. For example, only when the capability information supports the first uplink transmission mode, the network device sends the above-mentioned indication information to the terminal. In this way, when the terminal does not support the first uplink transmission mode, the network device still configures the terminal to enable the first uplink transmission mode to cause a waste of signaling or resources.

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

The first uplink transmission mode may be set for all uplink signals, or may be set for different uplink signals, thereby further improving the flexibility of uplink transmission.

In some possible implementation manners, the method further includes: using an uplink beam corresponding to the first reference signal to perform uplink communication with the network device.

The terminal uses the uplink beam corresponding to the first reference signal to perform uplink communication with the network device, thereby improving the efficiency of uplink transmission.

In some possible implementation manners, the method further includes: determining the uplink transmission power according to the path loss of the first reference signal; and performing uplink communication with the network device according to the uplink transmission power.

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

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

The network device receives the uplink beam corresponding to the indicated first reference signal, and uses the uplink beam as a backup uplink beam of the terminal. In this way, when the terminal does not meet the beam consistency, the uplink signal can be sent through the backup beam. Correspondingly, the network device can accurately receive the uplink signal according to the indication information, thereby helping to improve the efficiency of uplink transmission.

The terminal can notify the network equipment of the preset uplink beam, and in the case of an MPE problem with the terminal, the preset uplink beam can be used for uplink transmission, so that the network equipment can accurately receive the uplink signal of the terminal. That is, a fault-tolerant mechanism is added, which helps to improve the efficiency of uplink transmission.

In some possible implementation manners, the method further includes: sending multiple reference signals, and the first reference signal is one of the multiple reference signals.

In some possible implementation manners, the receiving the indication information from the terminal includes: receiving a first measurement report from the terminal, the first measurement report includes the indication information, and the first measurement report is obtained by measuring the multiple reference signals. of.

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

Or, when the terminal detects that the current uplink transmission mode (that is, the second uplink transmission mode) is inappropriate, it can inform the network device to exit the second uplink transmission mode, which can help the terminal find a suitable uplink beam, thereby improving Uplink transmission efficiency.

The uplink signaling can carry the second request information, so that the terminal avoids sending the second request information specifically, but reuses existing signaling, thereby reducing signaling overhead.

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

In a third aspect, a method for uplink transmission is provided. The method includes: determining second request information, where the second request information is used to request to exit a second uplink transmission mode, and the second uplink transmission mode is the first The uplink beam corresponding to the reference signal has the same transmission mode as the uplink beam corresponding to the preset reference signal; sending the second request information to the network device.

The terminal can send the second request information to the network device, and can request the network device to exit the second uplink transmission mode, which can help the terminal to flexibly find the uplink beam, thereby improving the flexibility of uplink transmission.

In some possible implementation manners, the sending the second request information to the network device includes: sending the second request information to the network device when obstruction is detected or the rotation of the terminal is detected.

When the terminal detects that the current uplink transmission mode (that is, the second uplink transmission mode) is not suitable, it can inform the network device to exit the second uplink transmission mode, which can help the terminal find a suitable uplink beam, thereby helping Improve the efficiency of uplink transmission.

In some possible implementation manners, the sending the second request information to the network device includes: sending uplink signaling to the network device, where the uplink signaling is used to indicate that the obstruction is detected or the rotation of the terminal is detected, and the uplink signaling is detected. The command includes the second request information, and the uplink signaling is any one of uplink control information UCI, medium access control control unit MAC CE, and physical uplink shared channel PUSCH.

In some possible implementation manners, the method further includes: sending first request information to the network device, where the first request information is used to request to enter a first uplink transmission mode, and the first uplink transmission mode is the first reference signal The corresponding uplink beam and the uplink beam corresponding to the preset reference signal have different transmission modes.

In the case where the terminal detects that the MPE problem disappears, it can send the third request message to the network device to request the restoration of the second uplink transmission mode. In this way, the terminal can flexibly switch between the first uplink transmission mode and the second uplink transmission mode, which helps to further improve the flexibility of uplink transmission.

In some possible implementations, before sending the second request information to the network device, the method further includes: sending capability information, the capability information being used to indicate that the terminal supports the first uplink transmission mode, and the first uplink transmission mode It is a different transmission mode of the uplink beam corresponding to the first reference signal and the uplink beam corresponding to the preset reference signal.

In a fourth aspect, a method for uplink transmission is provided. The method includes: receiving second request information from a terminal, where the second request information is used to request to exit a second uplink transmission mode, and the second uplink transmission mode is The uplink beam corresponding to the first reference signal has the same transmission mode as the uplink beam corresponding to the 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, which can help the terminal to flexibly find the uplink beam, thereby improving the flexibility of uplink transmission.

In some possible implementation manners, the receiving the second request information from the terminal includes: receiving uplink signaling from the terminal, where the uplink signaling is used to indicate that the obstruction is detected, or the rotation of the terminal is detected, and the uplink signaling Including the second request information, the uplink signaling is any one of uplink control information UCI, medium access control control unit MAC CE, and physical uplink shared channel PUSCH.

In some possible implementation manners, the method further includes: receiving first request information from the terminal, where the first request information is used to request to enter a first uplink transmission mode, and the first uplink transmission mode is the first reference signal The corresponding uplink beam and the uplink beam corresponding to the preset reference signal have different transmission modes.

In some possible implementations, the method further includes: receiving 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 the first reference signal The corresponding uplink beam has the same transmission mode as the uplink beam corresponding to the 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: receiving capability information, the capability information being used to indicate that the terminal supports a first uplink transmission mode, and the first uplink transmission mode is an uplink beam corresponding to the first reference signal and a preset Different transmission modes of the uplink beam corresponding to the reference signal.

In a fifth aspect, a device for uplink transmission is provided. The device may be a terminal or a chip in the terminal. The device has the function of realizing the above-mentioned first aspect or third aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

In one possible design, the device includes a transceiver module. Optionally, the device may also include a processing module. The transceiver module may include a receiving module and a sending module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the device further includes a storage module, and the storage module may be, for example, a memory. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or from other instructions, so that the device executes the above-mentioned first aspect or third aspect, and various possible implementation modes of communication method. In this design, the device can be a terminal.

In another possible design, when the device is a chip, the chip includes a transceiver module. Optionally, the device may further include a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be an input/output interface, pin or circuit on the chip, for example. The processing module may be a processor, for example. The processing module can execute instructions so that the chip in the terminal executes the first aspect or the third aspect, and any possible implementation communication method. Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module can also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.

Among them, the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of communication method program execution integrated circuit.

In a sixth aspect, a device for uplink transmission is provided. The device may be a network device or a chip in the network device. The device has the function of realizing the above-mentioned second aspect or fourth aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

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

Optionally, the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other sources, so that the device executes the above-mentioned second aspect or fourth aspect, or any one of the methods thereof.

In another possible design, when the device is a chip, the chip includes a transceiver module. Optionally, the device may further include a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be an input/output interface, pin or circuit on the chip, for example. The processing module may be a processor, for example. The processing module can execute instructions so that the chip in the network device executes the second aspect or the fourth aspect, and any possible implementation communication method.

Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module may also be located in the communication device but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

Wherein, the processor mentioned in any of the above may be a CPU, a microprocessor, an application-specific integrated circuit ASIC, or one or more integrated circuits used to control the execution of the programs of the above-mentioned various aspects of the communication method.

In a seventh aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the first aspect or the third aspect, and any possible implementation manners thereof .

In an eighth aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect or the fourth aspect, and any possible implementation manners thereof .

In a ninth aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the method in the first aspect or the third aspect, or any possible implementation manner thereof.

In a tenth aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the method in the second aspect or the fourth aspect, or any possible implementation manner thereof.

In an eleventh aspect, a communication system is provided. The communication system includes the device described in the fifth aspect and the device described in the sixth aspect.

Based on the above technical solution, the terminal receives multiple reference signals sent by the network device, and measures the signal quality of the multiple reference signals, thereby selecting a beam corresponding to a reference signal (ie, the second reference signal) from the multiple reference signals as Downlink beam. In addition, the terminal may also indicate the uplink beam corresponding to the first reference signal among the multiple reference signals in the measurement report. In other words, the terminal can find two beams to report to the network device, one for downlink transmission and one for uplink transmission. In this way, when 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, avoiding the uplink beam training to find the uplink beam again, thereby improving the communication efficiency of the uplink beam .

Description of the drawings

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

Fig. 2 is a schematic flowchart of an uplink transmission method in a traditional scheme;

FIG. 3 is a schematic flowchart 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 flowchart of a method for uplink transmission according to another embodiment of the present application;

FIG. 6 is a schematic flowchart of a method for uplink transmission according to 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 according to 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 specific embodiment of the present application;

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

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

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

Detailed ways

The technical solution in this application will be described below in conjunction with the accompanying drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new radio (NR), etc.

The terminal in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal device, wireless communication device, user agent, or User device. The terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN), etc. This embodiment of the present application does not limit this.

The network equipment in the embodiments of the present application may be equipment used to communicate with terminals. The network equipment may be a global system for mobile communications (GSM) system or code division multiple access (CDMA). The base transceiver station (BTS) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled NodeB) in an LTE system. , ENB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and the future 5G The network equipment in the network or the network equipment in the PLMN network that will evolve in the future, one or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or it can also be a network node that constitutes a gNB or transmission point, For example, a baseband unit (BBU), or a distributed unit (DU), etc., are not limited in the embodiment of the present application.

In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB. For example, the CU is responsible for handling non-real-time protocols and services, implementing radio resource control (RRC) and packet data convergence protocol (PDCP) layer functions. The DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.

In the embodiment of the present application, the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application. For example, the execution subject of the method provided in the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call and execute the program.

In addition, various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques. The term "article of manufacture" used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions 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 (for example, the terminal 10, the terminal 20, the terminal 30, the terminal 40, the terminal 50, and the terminal 60) and a network device 70. The network device 70 is used to provide communication services for the terminal and access the core network. The terminal can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 70, so as to communicate with the network. The terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink and downlink transmissions with the network device 70. For example, the network device 70 may send downlink signals to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, and may also receive the uplink signal sent by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.

In addition, the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send downlink signals to the terminal 40 and the terminal 50, and can also receive uplink signals sent by the terminal 40 and the terminal 50.

It should be noted that the embodiments 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 the present application.

It should be understood that there may be one or more network devices included in the communication system. A network device can send data or control signaling to one or more terminals. Multiple network devices can also send data or control signaling to one or more terminals at the same time.

The terms involved in this application are described in detail below:

1. Beam:

The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter. The beam used to transmit a signal can be called a transmission beam (Tx beam), can be called a spatial domain transmission filter or a spatial transmission parameter (spatial transmission parameter); the beam used to receive a signal can be called To receive the beam (reception beam, Rx beam), it can be called a spatial domain receive filter or a spatial receive parameter (spatial RX parameter).

The transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.

In addition, the beam may be a wide beam, or a narrow beam, or other types of beams. The beam forming technology may be beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology, etc.

Beams generally correspond to resources. For example, when performing beam measurement, network equipment uses different resources to measure different beams, and the terminal feeds back the measured resource quality, and the network equipment knows the quality of the corresponding beam. During data transmission, the beam information is also indicated by its corresponding resource. For example, the network device instructs the terminal's physical downlink shared channel (PDSCH) beam information through the transmission configuration indication (TCI) resource in the downlink control information (DCI).

Optionally, multiple beams having the same or similar communication characteristics are regarded as one beam. One or more antenna ports can be included in one beam, which are used to transmit data channels, control channels, and sounding signals. One or more antenna ports forming a beam can also be regarded as an antenna port set.

In beam measurement, each beam of the network device corresponds to a resource, so the resource index can be used to uniquely identify the beam corresponding to the resource.

2. Resources:

In beam measurement, the resource index can be used to uniquely identify the beam corresponding to the resource. The resource can be an uplink signal resource or a downlink signal resource. Uplink signals include but are not limited to sounding reference signal (SRS) and demodulation reference signal (DMRS). Downlink signals include but are not limited to: channel state information reference signal (CSI-RS), cell specific reference signal (CS-RS), UE specific reference signal (user equipment specific reference signal, US-RS), demodulation reference signal (demodulation reference signal, DMRS), and synchronization signal/physical broadcast channel block (synchronization system/physical broadcast channel block, SS/PBCH block). Among them, the SS/PBCH block may be referred to as a synchronization signal block (synchronization signal block, SSB) for short.

Resources are configured through radio resource control (radio resource control, RRC) signaling. In terms of configuration structure, a resource is a data structure, including its corresponding uplink/downlink signal related parameters, such as the type of uplink/downlink signal, the resource element that carries the uplink/downlink signal, the transmission time and period of the uplink/downlink signal , The number of ports used to send uplink/downlink signals, etc. Each uplink/downlink signal resource has a unique index to identify the downlink signal resource. It is understandable that the index of the resource may also be referred to as the identifier of the resource, which is not limited in the embodiment of the present application.

3. Carrier aggregation (CA):

CA can aggregate two or more component carriers (CC) to achieve a larger transmission bandwidth and effectively increase the uplink and downlink transmission rates. CA can support in-band continuous carrier aggregation, in-band discontinuous carrier aggregation, or inter-band discontinuous carrier aggregation. Among them, the component carrier may also be referred to as a carrier component (CC).

It is understandable that the embodiments of the present application can be applied in a multi-carrier or CA scenario.

4. Terminal beam correspondence:

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

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

5. Maximum permissible exposure (MPE):

When the mobile phone is in use, because the transmitting antenna of the mobile phone is quite close to the brain or other parts of the human body, excessive electromagnetic energy radiation may be emitted. Therefore, the terminal can use specific absorption rate (SAR) measurement to ensure that there will be no excessive electromagnetic energy radiation, thereby ensuring the safety of the human body using the mobile phone. In addition, in addition to the SAR standard, derived from electromagnetic theory, the safety standard can also be expressed by MPE. Among them, MPE is specifically expressed by the amount of electromagnetic field or power density (PD).

Among them, the MPE safety value is formulated so that the corresponding SAR value cannot exceed its limit under any exposure conditions. For example, in the high frequency band (>6GHz), the safety standard is usually expressed by MPE, and the Federal Communications Commission (FCC) MPE is limited to 11 milliwatts per square centimeter (mW/cm ² ). Among them, the radiation intensity is jointly affected by the transmission power and the transmission antenna gain. The estimation of radiation intensity allows time domain averaging, and the average time ranges from 2s to 6min.

It should be noted that in the embodiments of the present application, the "MPE problem" or the "MPE risk" may be used to indicate that the radiation intensity caused by the signal sent by the terminal exceeds the MPE. For the convenience of description, the following embodiments take the "MPE problem" as an example for description, but the application is not limited to this.

6. Uplink transmission:

The uplink transmission in the embodiment of this application may refer to the transmission of the physical uplink shared channel (PUSCH), the transmission of the uplink control channel (physical uplink control channel, PUCCH), or the uplink sounding reference signal (sounding reference signal, SRS). ) Transmission. Specifically, the network device can schedule PUSCH through DCI format 0, and enable the default uplink transmission mode through enableDefaultBeamPlForPUSCH0_0, that is, the terminal uses the receive beam of the downlink control channel as the PUSCH transmit beam, and the reference signal corresponding to the downlink control channel is used as the PUSCH transmit beam. Path loss estimation reference signal. The network device can also enable the default uplink transmission mode through enableDefaultBeamPlForPUCCH, that is, the terminal uses the receiving beam of the downlink control channel as the PUCCH sending beam, and the reference signal corresponding to the downlink control channel is used as the path loss estimation reference signal for sending the PUCCH. The network device can also enable the default uplink transmission mode through enableDefaultBeamPlForSRS, that is, the terminal uses the receiving beam of the downlink control channel as the sending beam of the SRS, and the reference signal corresponding to the downlink control channel is used as the path loss estimation reference signal for sending the SRS.

It is understandable that the receiving beam of the downlink control channel and the reference signal corresponding to the downlink control channel may be stipulated by the protocol.

It should be noted that with the continuous development of technology, the terminology of the embodiments of this application may change, but they are all within the protection scope of this application.

Fig. 2 shows a schematic flowchart of an uplink transmission method in a traditional solution.

201: The terminal sends capability information to a network device.

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

202. The network device sends configuration information to the terminal, where the configuration information is used to indicate related configurations for beam training.

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

It is understandable that the configuration information can also be used to configure the terminal to enable the default uplink transmission mode.

203. The network device sends multiple reference signals to the terminal.

204. The terminal measures the multiple reference signals.

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

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

207. The terminal determines an uplink beam according to the default uplink transmission mode, and uses the uplink beam to send an uplink signal to the network device.

That is to say, in the traditional scheme, in order to reduce the overhead and delay of uplink beam management, multiple default uplink transmission modes are defined. For terminals with beam consistency, the uplink transmission beam can directly refer to the downlink beam. In this way, if there is a downlink beam switching, the network equipment only needs to send downlink beam switching signaling, and the terminal can automatically follow the downlink beam switching and update its own uplink transmission beam and transmission power, without the need for the network equipment to specifically send signaling Perform the switching of the notification uplink transmission beam. A basic premise of the above-mentioned R16 scheme is that the terminal has beam consistency. However, in actual communication, the beam consistency of the terminal is not necessarily established.

For example, due to the weak capabilities of the terminal, the receiving and sending channel calibration is not performed when leaving the factory, resulting in the directions of the receiving beam and the sending beam not being completely consistent, or even large deviations.

For another example, the terminal supports beam consistency under normal conditions, but needs to temporarily distinguish the uplink and downlink beam conditions in some cases. One situation is: the direction of the uplink transmission beam is toward the human body, which causes the MPE problem. Because the human body is blocked, it will cause certain damage to the human body. In order for the terminal to reduce the radiation intensity of the uplink signal to the safe range of the human body, it can be achieved by reducing the transmission power of the uplink signal, which will cause the downlink beam to receive the downlink signal, but the uplink signal sent by the uplink transmission beam corresponding to the downlink beam cannot be transmitted. When reaching the network device, the beam consistency is temporarily destroyed. Another situation is that the terminal moves or rotates during the process from receiving the downlink control channel to performing uplink transmission, so that the beam consistency is temporarily destroyed.

Therefore, in the case that the terminal does not support beam consistency, or in the case of supporting beam consistency but temporary beam inconsistency, how the terminal performs uplink transmission needs to be solved urgently.

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

301. The terminal receives multiple reference signals from a network device. Correspondingly, the network device sends the multiple reference signals to the terminal.

302. The terminal sends a measurement report for measuring the multiple reference signals to the network device, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and is used to indicate the multiple reference signals The downlink beam corresponding to the second reference signal in. Correspondingly, the network device receives the measurement report.

Specifically, the terminal receives multiple reference signals sent by the network device, and measures the signal quality of the multiple reference signals, thereby selecting a beam corresponding to a reference signal (that is, the second reference signal) from the multiple reference signals as the downlink beam . In addition, the terminal may also indicate the uplink beam corresponding to the first reference signal among the multiple reference signals in the measurement report. In other words, the terminal can find two beams to report to the network device, one for downlink transmission and one for uplink transmission. In this way, when 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, avoiding the uplink beam training to find the uplink beam again, thereby improving the communication efficiency of the uplink beam .

It should be noted that the terminal and the network device may agree that the uplink beam indicated by the measurement report is 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 the backup uplink beam in the middle.

It is understandable that the terminal may select the second reference signal according to the 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 a reference signal with the best signal quality among the multiple reference signals.

It can also be understood that the terminal may also select the first reference signal according to the signal quality. For example, the first reference signal satisfies a certain quality requirement. More specifically, the first reference signal may be a reference signal with the best signal quality other than the second reference signal selected from a plurality of reference signals.

It can also be understood that the uplink beam in the embodiment of the present application may be a beam pair link, that is, the uplink beam pair link includes the transmission beam for the terminal to send the uplink signal, and the network device receives the uplink signal A communication link composed of the receive beams.

For example, as shown in FIG. 4, in downlink communication, the network device uses beam 1 and beam 2 to send reference signals, respectively, and the terminal uses beam 3, beam 4, and beam 5 to receive reference signals. The terminal detects that the signal quality of the reference signal sent by the beam 2 received by the beam 3 is the best (that is, beam 3 and beam 2 are used as the downlink beam pair link), and beam 1 and beam 5 can be used as backup uplink beams in uplink communication On the link. The terminal informs the network device of the information of the first reference signal (beam 1) and the second reference signal (beam 2) through measurement reports. In this way, the network device can use the beam 2 as the serving beam of the terminal, and perform downlink transmission through the beam 2, and accordingly, the terminal uses the beam 3 to receive the downlink signal. After receiving the downlink signal by using the beam 3, the terminal uses the beam 5 to send the uplink signal. Accordingly, the network device uses the beam 1 to receive the uplink signal.

It should be noted that, for the convenience of description, the receiving beam or the sending beam is not separately described below. In this application, the beam 1 and the beam 2 are the beams of the network device. In the uplink communication, it refers to the receiving beam of the network device, and in the downlink communication, it refers to the transmitting beam of the network device. Similarly, beam 3, beam 4, and beam 5 are the beams of the terminal. In uplink communication, they refer to the terminal's transmitting beam, and in downlink communication, they refer to the terminal's receiving beam.

It is also understandable 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, the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal, and the second reference signal information is used to indicate the second reference signal. 2. Downlink beam corresponding to the 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 the signal identifier of the first reference signal or the resource identifier of the first reference signal. The second reference signal information is the signal identifier of the second reference signal or the resource identifier of the second reference signal.

It can be understood that the signal identifier of the first reference signal or the second reference signal may be the reference signal number. Or the resource identifier of the first reference signal may be the identifier of the resource corresponding to the first reference signal. Correspondingly, the resource identifier of the second reference signal may be the identifier of the resource corresponding to the second reference signal.

For example, Table 1 shows the resource identifier of the second reference signal in the embodiment of this application (for example, CSI-RS resource#a, CSI-RS resource#b, CSI-RS resource#c, CSI-RS resource#d ), the relationship between downlink beams (BS TX and UE RX) and measurement reports.

Table 1

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

Optionally, the resource identification can be realized by the value of bits.

Specifically, the measurement report includes a plurality of bits, the first part of the plurality of bits is used to indicate the resource identifier of the first reference signal, and the second part of the bits is used to indicate the resource identifier of the second reference signal. It is understandable that, in addition to the first part of bits and the second part of bits, the measurement report may also include a third part of bits, and the value of the third part of bits 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 is understandable that the reported amount of the measurement report may be configured by the network. The report format of the measurement report may be configured by the network device, or may be predefined by the protocol.

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

Optionally, the first reference signal has an association relationship with the second reference signal.

Specifically, the terminal selecting the second reference signal may be determined according to the 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 first reference signal are low-correlation beams. The uplink beams corresponding to the reference signal are beams formed by different antenna panels.

It can be understood that the low correlation beam may be a non-adjacent beam, or a beam whose distance is less than a preset threshold. For example, the terminal may first select multiple reference signals as 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 multiple reference signals as 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 also understandable that the beams formed by different antenna panels may be beams formed by antenna panels of different terminals, or beams formed by different antenna panels in the same terminal, which is not limited in this application.

It can also be understood that the association relationship between the first reference signal and the second reference signal may also be determined by other protocols predefined or rules configured by the network device, which is not limited in this application.

It can 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 also receive instruction information from the network device, and the instruction information may be used to instruct the terminal to enable the first uplink transmission mode, and the first uplink transmission mode is corresponding to the first reference signal. The uplink beam of is used as the transmission mode of the candidate uplink beam, where the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.

Specifically, the network device may send instruction information to the terminal to instruct the terminal to start the first uplink transmission mode. That is to say, after receiving the indication information, the measurement report sent to the network device by the terminal may be used to indicate the uplink beam corresponding to the first reference signal. Therefore, the network device can flexibly control whether the terminal uses the first uplink transmission mode for uplink transmission, thereby improving the flexibility of uplink transmission.

It can be understood that the preset reference signal may be a reference signal corresponding to a downlink control channel. In the default uplink transmission mode (that is, the second uplink transmission mode) of the traditional scheme, the terminal selects the downlink beam corresponding to the second reference signal from multiple reference signals as the target downlink beam, and according to the beam consistency of the terminal, the preset It is assumed that the uplink beam corresponding to the reference signal is used for uplink transmission. 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 uses the uplink beam corresponding to the first reference signal to perform Uplink transmission.

It can also be understood that those skilled in the art may also refer to the "first uplink transmission mode" as the "enhanced default transmission mode".

It can also be understood that the indication information can be carried in any 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 indicate that the terminal supports the first uplink transmission mode.

Specifically, the terminal may report to the network device in advance whether it supports the first uplink transmission mode. For example, only when the capability information supports the first uplink transmission mode, the network device sends the above-mentioned indication information to the terminal.

It is understandable 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 in this application.

Optionally, the first uplink transmission mode in the embodiment of the present application may include at least one of the uplink transmission mode of PUSCH, the first uplink transmission mode of PUCCH, or the 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, thereby improving the flexibility of uplink transmission.

In an embodiment, before step 302, the terminal may also 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, when the terminal detects obstruction (that is, there is an obstruction between the terminal and the network device), or detects that the terminal itself has rotated, it may send the first request information to the network device to request access to the first uplink transmission model. That is to say, the terminal may request a new uplink transmission mode (that is, the first uplink transmission mode) when it is determined that the current uplink transmission mode is not appropriate, thereby helping to improve the efficiency of uplink transmission.

It is understandable that after receiving the first request information from the terminal, the network device may send the above-mentioned indication information to the terminal to instruct the terminal to start the first uplink transmission mode.

In another embodiment, before step 302, the terminal may also 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 the uplink beam corresponding to the preset reference signal is used as the candidate uplink beam, that is, the "default transmission mode". Wherein, the uplink beam corresponding to the preset reference signal is different from the uplink beam corresponding to the first reference signal. When the terminal detects obstruction (that is, there is an obstruction between the terminal and the network device), or detects that the terminal itself has rotated, it may send the second request information to the network device to request to exit the second uplink transmission mode. In this way, after receiving the second request information, the network device may perform uplink beam training, or send the above-mentioned indication information to the terminal to instruct the terminal to enter the first uplink transmission mode. In other words, when the terminal detects that the current uplink transmission mode (that is, the second uplink transmission mode) is not appropriate, it can inform the network device to exit the second uplink transmission mode, which can help the terminal find a suitable uplink beam. Thereby improving the uplink transmission efficiency.

It is understandable that after sending the second request information, the terminal may further send the first request information. Or the terminal sends the second request information after sending the first request information. Or, the terminal only sends the first request information, or the terminal only sends the second request information, which is not limited in this application.

It is also understandable that the terminal can determine the distance between the human body and the device through the infrared sensor, and then estimate whether the radiation intensity on the surface of the human body will cause the MPE problem.

For example, if the default mode is enabled, the terminal needs to use the transmission beam corresponding to the QCL type D reference signal identifier in the downlink control channel resource set (CORESET) beam indicator (TCI state) to transmit the uplink signal/channel. However, once close to the human body, the terminal's analog beam may cause radiation risks, such as maximum allowable exposure (MPE) issues. In this case, the default uplink beam may no longer be applicable, because the terminal must greatly reduce the uplink transmission power and transmission duty cycle in the beam direction, which greatly damages the uplink coverage. One solution is to introduce an exit mechanism initiated by the terminal, so that the base station can learn that the MPE risk has occurred on the terminal side. In order to enable this mechanism and the communication after exiting the default mode, the terminal can provide the base station with relevant information about the backup beam through downlink beam reporting. After exiting the default mode, the terminal can use the backup transmission beam for uplink transmission. (If default UL mode is enabled, UE shall transmit UL channels/signals by using the Tx beamcorresponding to QCL TypeD RS ID contained in a CORESET TCI state. However, analogbeamforming in FR2 may create human problems ,for example,Maximumpermissibleexposure(MPE)issue about RFexposurelimitationforsafety.In this case,the default Txbeam would not be suitable anymore since UE has to limit of the maximum power uplink duty cycle and which up harming FR2 UL 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 exchange mechanism and to maintain this uniformity after the UL provide backup UL Tx beam information to gNB, for example, via DL beam reporting. After exiting from default mode, UE could use the backup Tx beam for UL transmission.)

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

Optionally, the terminal sending the second request information to the network device may specifically be that the terminal sends uplink signaling to the network device, where the uplink signaling is used to indicate that obstruction or 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 in the case of detecting the obstruction or detecting the rotation of the terminal. The uplink signaling can carry the second request information, so that the terminal avoids sending the second request information specifically, but reuses existing signaling, thereby reducing signaling overhead.

It is understandable that the terminal may also send the uplink signaling in other situations where the current uplink beam is detected to be inappropriate (that is, MPE problem), which is not limited in this application.

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

It is understandable that the uplink signaling may also be other signaling, which is not limited in this application. For example, a risk notification message or a handover request message. Wherein, the switching request message is used to request the network device to switch the transmitting beam of the terminal.

Optionally, the terminal may also 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 a case where the terminal detects that the MPE problem disappears, it may send third request information to the network device to request the restoration of the second uplink transmission mode. In this way, the terminal can flexibly switch between the first uplink transmission mode and the second uplink transmission mode, which helps to further improve the flexibility of uplink transmission.

Optionally, 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 message to request to exit the first uplink transmission mode, thereby avoiding still using the first uplink transmission mode when the MPE problem disappears.

It is understandable that the network device may exit the first uplink transmission mode by default when receiving the third request information.

It should be noted that the third request information can be sent independently, or it can be carried in an existing message (for example, UCI, MAC CE or PUSCH and sent. Similarly, the fourth request information can be sent independently. It can also be carried in an existing message and sent.

It is also understandable that the third request information or the fourth request information can be replaced by a "risk release notice", which is not limited in this application.

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

Specifically, the terminal may set a timer, and within the time range when the timer is effective, the terminal uses the uplink beam determined by the first uplink transmission mode to perform uplink transmission. When the timer expires, the terminal uses the uplink beam determined by the second uplink transmission mode to perform uplink transmission. This avoids the transmission of signaling, thereby saving signaling overhead.

Optionally, after step 302, the terminal uses the uplink beam corresponding to the first reference signal to perform uplink communication with the network device, thereby improving the efficiency of uplink transmission.

Optionally, after step 302, the terminal may determine the 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 first determine the path loss of the first reference signal, and determine the uplink transmission power according to the path loss of the first reference signal, and then determine the uplink transmission power according to the uplink transmission power, and the uplink beam and the corresponding uplink beam of the first reference signal. The network device performs uplink communication.

FIG. 5 shows a schematic flowchart of a method for uplink transmission according to another embodiment of the present application.

It should be noted that, unless otherwise specified, the same terms in the embodiment shown in FIG. 5 and the embodiment shown in FIG. 3 have the same meaning.

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

In an example, the uplink beam corresponding to the first reference signal may be a preset uplink beam. In other words, the terminal can notify the network equipment of the preset uplink beam, and in the case of an MPE problem with the terminal, the preset uplink beam can be used for uplink transmission, that is, a fault-tolerant mechanism is added, thereby helping to improve the efficiency of uplink transmission.

It is understandable that the preset uplink beam may be set by the terminal itself, or may be stipulated by the agreement, which is not limited in this application.

In another example, the uplink beam corresponding to the first reference signal can be obtained in the solution shown in FIG. 3, that is, the terminal obtains the first reference signal by measuring multiple reference signals. To avoid repetition, this is not done here. Go into details.

In 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 this application.

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

Specifically, the terminal sends instruction information to the network device, where the instruction information indicates the uplink beam corresponding to the first reference signal. In other words, the terminal sends the instruction information to the network device, which helps the network device to accurately receive the uplink signal, thereby improving the efficiency of uplink transmission.

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

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

Specifically, the terminal may also obtain the second reference signal according to multiple reference signal measurements, and notify the network device of the downlink beam corresponding to the second reference signal through the second measurement report.

It is understandable that the second measurement report and the first measurement report are the same measurement report, that is, the same measurement report indicates the uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal at the same time. 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 through different measurement reports.

It can also be understood that, in this embodiment of the present application, the sequence in which the terminal obtains the first reference signal and the second reference signal through measurement is not limited.

It should be noted that other implementation manners shown in FIG. 3 can be combined with the implementation manner shown in FIG. 5, which is not limited in this application.

FIG. 6 shows a schematic flowchart of a method for uplink transmission according to an embodiment of the present application.

It should be noted that, unless otherwise specified, the embodiment shown in FIG. 6 has the same meaning as the same terms in the embodiment shown in FIG. 3 or FIG. 5.

601. The terminal determines second request information, where the second request information is used to request to exit the second uplink transmission mode, and the second uplink transmission mode is that the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal Transmission mode.

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

It is understandable that after performing step 602, the terminal may refer to the steps after the terminal sends the second request information to the network device in the embodiment shown in FIG.

Optionally, step 602 may specifically be that the terminal sends the second request information to the network device when the terminal detects the occlusion or detects the rotation of the terminal.

It is understandable that the terminal may also send the second request information due to other motivations, which is not limited in this application.

Optionally, step 602 may specifically be that the terminal sends uplink signaling to the network device, where the uplink signaling is used to indicate detection of obstruction or rotation of the terminal, 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 control unit MAC CE, and physical uplink shared channel PUSCH.

Optionally, the terminal may also 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 the first uplink transmission mode is the uplink beam and preamble corresponding to the first reference signal. It is assumed that the uplink beam corresponding to the reference signal has different transmission modes.

It is understandable that after exiting the second uplink transmission mode, the terminal can stop uplink transmission or perform other operations, or enter the first uplink transmission mode, which is not limited in this application.

Optionally, after exiting the second uplink transmission mode, the terminal may also use a beam predefined by the protocol for uplink transmission. The predefined beam can be one or more of the following: the transmission beam used by the terminal for initial access, the transmission beam used by the terminal for random access, the transmission beam used by the terminal for the last random access, and the terminal receives system messages ( Including but not limited to the receiving beams corresponding to the receiving beams of master information block (MIB) and system information blocks (SIBs), and the control channel of the terminal control channel resource set number 0 (CORESET 0) The transmit beam corresponding to the receive beam of the resource set, and the QCL type D reference signal in the TCI state with the largest or smallest TCI state ID identifies the corresponding transmit beam.

Optionally, after exiting the second uplink transmission mode, the terminal may also use a path loss reference signal predefined by the protocol to perform path loss estimation. The predefined path loss reference signal can be one or more of the following: SS/PBCH during the initial access of the terminal, SS/PBCH during the random access of the terminal, and the last random access process of the terminal In the SS/PBCH, the reference signal corresponding to the receiving beam of the terminal receiving system messages (including but not limited to MIB, SIBs, etc.), and the receiving beam corresponding to the control channel resource set of the terminal control channel resource set number 0 (CORESET 0) Reference signal, the QCL type D reference signal in the TCI state with the largest or smallest TCI state ID.

Optionally, the terminal may also send third request information to the network device, where the third request information is used to request to enter the second uplink transmission mode, and the second uplink transmission mode is the uplink beam and preamble corresponding to the first reference signal. It is assumed that the uplink beam corresponding to the reference signal has the same transmission mode.

Optionally, the terminal may also 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 sending the second request information to the network device, the terminal may also receive capability information, where the capability information is used to indicate that the terminal supports a first uplink transmission mode, and the first uplink transmission mode is the first reference signal The corresponding uplink beam and the uplink beam corresponding to the preset reference signal have different transmission modes.

It should be noted that other implementation manners shown in FIG. 3 can be combined with the implementation manner shown in FIG. 6, which is not limited in this application.

The various embodiments described in this document may be independent solutions, or may be combined according to internal logic, and these solutions fall within the protection scope of the present application.

It is understandable that, in the foregoing method embodiments, the methods and operations implemented by the terminal can also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the network device can also be implemented by the terminal. The components (such as chips or circuits) of network equipment are implemented.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of various interactions. It can be understood that each network element, such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the foregoing method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented either in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.

It should be understood that the specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application.

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

Above, the method provided by the embodiment of the present application has been described in detail with reference to FIG. 3, FIG. 5, and FIG. 6. Hereinafter, the device provided by the embodiment of the present application will be described in detail with reference to FIGS. 7 to 14. It should be understood that the description of the device embodiment and the description of the method embodiment correspond to each other. Therefore, for the content that is not described in detail, please refer to the above method embodiment. For the sake of brevity, it will not be repeated here.

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

It should be understood that the device 700 may correspond to the terminals or chips in the terminals shown in FIG. 1, and the terminals or chips in the terminals in the embodiments shown in FIG. 3, FIG. 5, and FIG. Any function of the terminal in the method embodiment shown in FIG. 5 and FIG. 6. For example, the device 700 includes a receiving module 710 and a sending module 720.

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

The sending module 720 is configured to send a measurement report for measuring the multiple reference signals to the network device, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and to indicate the multiple reference signals. A downlink beam corresponding to the second reference signal in the 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 has an association relationship with the second reference signal, and the association relationship is that the uplink beam corresponding to the first reference signal and the downlink beam corresponding to the second reference signal are low-correlation beams, or the second reference signal The uplink beam corresponding to an uplink reference signal and the 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 instruction information from the network device, where the instruction information is used to instruct the terminal to enable the first uplink transmission mode, and the first uplink transmission mode is the uplink corresponding to the first reference signal. The beam has a different transmission mode from the uplink beam corresponding to the preset reference signal.

Optionally, the sending module 720 is also used 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 also used to send The network device sends second request information, the second request information is used to request to exit the second uplink transmission mode, and the second uplink transmission mode is that the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal Transmission mode.

Optionally, the sending module 720 is specifically configured to: send uplink signaling to the network device, where the uplink signaling is used to indicate detection of obstruction or rotation of the terminal, and the uplink signaling includes the second request information, The uplink signaling is any one of uplink control information UCI, medium access control control unit MAC CE, and 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, and the second uplink transmission mode corresponds to the first reference signal. And/or the sending module 720 is further configured to send fourth request information to the network device, and 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, the capability information being used to indicate that the terminal supports a first uplink transmission mode, and the first uplink transmission mode is the uplink beam corresponding to the first reference signal and the preset reference Different transmission modes of the uplink beam corresponding to the signal.

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

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

Optionally, the device further includes a processing module configured to determine the 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 transmission power.

For a more detailed description of the foregoing receiving module 710 and sending module 720, reference may be made to the related description in the foregoing method embodiment, which is not described herein again.

FIG. 8 shows a communication device 800 provided by an embodiment of the present application. The device 800 may be the terminal described in FIG. 3, FIG. 5, or FIG. 6. The device can adopt the hardware architecture shown in FIG. 8. The device may include a processor 810 and a transceiver 830. Optionally, the device may also include a memory 840. The processor 810, the transceiver 830, and the memory 840 communicate with each other through an internal connection path. The related functions implemented by the processing module in FIG. 7 may be implemented by the processor 810, and the related functions implemented by the receiving module 710 and the sending module 720 may be implemented by the processor 810 controlling the transceiver 830.

Optionally, the processor 810 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.

Optionally, the processor 810 may include one or more processors, such as one or more central processing units (CPU). In the case that the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.

The transceiver 830 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

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

The memory 840 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 810.

Specifically, the processor 810 is configured to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

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

It can be understood that FIG. 8 only shows a simplified design of the communication device. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.

In a possible design, the device 800 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 810 in the terminal. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

The embodiment of the present application also provides a device, which may be a terminal or a circuit. The device can be used to perform the actions performed by the terminal in the foregoing 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 the chip in the network device shown in FIG. 1, or the network device or the chip in the network device in the embodiments shown in FIG. 3, FIG. 5, and FIG. Any function of the network device in the method. For example, the device 900 includes a sending module 910 and a receiving module 920.

The sending module 910 is configured to send multiple reference signals to the terminal;

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

Optionally, the receiving module 920 is further configured to receive instruction information from the network device, where the instruction information is used to instruct the terminal to enable the first uplink transmission mode, and the first uplink transmission mode is the uplink corresponding to the first reference signal. The beam has a different transmission mode from the uplink beam corresponding to the 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 includes a processing module, which processes The module is used to turn off the second uplink transmission mode when the first request information is received, and the second uplink transmission mode is the same transmission of the uplink beam corresponding to the first reference signal and the uplink beam corresponding to the preset reference signal model.

Optionally, the receiving module 920 is further configured to receive second request information from the terminal, where the second request information is used to request to exit the second uplink transmission mode, and the second uplink transmission mode is the first reference signal The corresponding uplink beam has the same transmission mode as the uplink beam corresponding to the preset reference signal; the device further includes a processing module configured to turn off the second uplink transmission mode when the second request information is received.

Optionally, the receiving module 920 is specifically configured to: receive uplink signaling from the terminal, where the uplink signaling is used to indicate detection of obstruction or rotation of the terminal, and the uplink signaling includes the second request information, The uplink signaling is any one of uplink control information UCI, medium access control control unit MAC CE, and 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 to request to enter a second uplink transmission mode, and the second uplink transmission mode corresponds to the first reference signal The uplink beam of the reference signal corresponds to the same transmission mode as the uplink beam corresponding to the preset reference signal; or the receiving module 920 is further configured to receive fourth request information from the terminal, and the fourth request information is used to request to quit the first uplink transmission model.

Optionally, the receiving module 920 is further configured to receive capability information, the capability information being used to indicate that the terminal supports a first uplink transmission mode, and the first uplink transmission mode is the uplink beam corresponding to the first reference signal and the preset reference Different transmission modes of the uplink beam corresponding to the signal.

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

For a more detailed description of the foregoing sending module 910 and receiving module 920, reference may be made to the relevant description in the foregoing method embodiment, which is not described herein again.

FIG. 10 shows an apparatus 1000 for uplink transmission provided in an embodiment of the present application. The apparatus 1000 may be the network device described in FIG. 3, FIG. 5, or FIG. 6. The device can adopt the hardware architecture shown in FIG. 10. The device may include a processor 1010 and a transceiver 1020. Optionally, the device may also include a memory 1030. The processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through an internal connection path. The related functions implemented by the processing module in the embodiment shown in FIG. 9 may be implemented by the processor 1010, and the related functions implemented by the sending module 910 and the receiving module 920 may be implemented by the processor 1010 controlling the transceiver 1020.

Optionally, the processor 1010 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.

Optionally, the processor 1010 may include one or more processors, such as one or more central processing units (CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.

The transceiver 1020 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

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

The memory 1030 is used to store program codes and data of the network device, and may be a separate device or integrated in the processor 1010.

Specifically, the processor 1010 is used to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

In a specific implementation, as an embodiment, the apparatus 1000 may further include an output device and an input device. The output device communicates with the processor 1010 and can display information in a variety of ways. For example, the output device can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 1010 and can receive user input in a variety of ways. For example, the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.

It can be understood that FIG. 10 only shows a simplified design of the communication device. In practical applications, the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement this application are protected by this application. Within range.

In a possible design, the apparatus 1000 may be a chip, for example, a communication chip that can be used in a network device, and is used to implement related functions of the processor 1010 in the network device. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

The embodiment of the present application also provides a device, which may be a network device or a circuit. The device can be used to perform the actions performed by the network device in the foregoing method embodiments.

Optionally, when the device in this embodiment is a terminal, FIG. 11 shows a simplified schematic diagram of the structure of the terminal. It is easy to understand and easy to illustrate. In FIG. 11, the terminal uses a mobile phone as an example. As shown in Figure 11, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the 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 description, only one memory and processor are shown in FIG. 11. In actual end products, 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. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal, and the processor with the processing function may be regarded as the processing unit of the terminal. As shown in FIG. 11, the terminal includes a transceiver unit 1110 and a processing unit 1120. The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiving unit 1110 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 1110 can be regarded as the sending unit, that is, the transceiving unit 1110 includes a receiving unit and a sending unit. The transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiving unit 1110 is used to perform sending and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit 1120 is used to perform other operations on the terminal in addition to the transceiving operation in the foregoing method embodiment.

For example, in an implementation manner, the processing unit 1120 is configured to execute the processing steps on the terminal side in FIG. 3. The transceiving unit 1110 is configured to perform the transceiving operations in steps 301 and 302 in FIG. 3, and/or the transceiving unit 1110 is also 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 includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.

Optionally, when the device is a terminal, the device shown in FIG. 12 can also be referred to. As an example, the device can perform functions similar to the processor 810 in FIG. 8. In FIG. 12, the device includes a processor 1201, a data sending processor 1203, and a data receiving processor 1205. The processing module in the embodiment shown in FIG. 7 may be the processor 1201 in FIG. 12 and complete corresponding functions. The sending module 720 and the receiving module 710 in the embodiment shown in FIG. 7 may be the sending data processor 1203 and the receiving data processor 1205 in FIG. 12. Although the channel encoder and the channel decoder are shown in FIG. 12, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.

Fig. 13 shows another form of this embodiment. The processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can be used as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1303 and an interface 1304. The processor 1303 performs the functions of the processing module in the embodiment shown in FIG. 7, and the interface 1304 performs the functions of the receiving module 710 and the sending module 720 described above. As another variation, the modulation subsystem includes a memory 1306, a processor 1303, and a program stored in the memory and capable of running on the processor, and the processor implements the method described in the embodiment when the program is executed. It should be noted that the memory 1306 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1300, as long as the memory 1306 can be connected to the The processor 1303 is fine.

When the device in this embodiment is a network device, the network device may be as shown in FIG. 14, for example, the device 140 is a base station. The base station can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment. The base station 140 may include one or more DU 1401 and one or more CU 1402. CU1402 can communicate with the next-generation core network (NG core, NC). The DU 1401 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 DU 1401 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of the baseband processing. The CU 1402 may include at least one processor 14022 and at least one memory 14021. CU1402 and DU1401 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.

The CU 1402 part is mainly used for baseband processing, control of base stations, and so on. The DU 1401 and the CU 1402 may be physically set together, or may be physically separated, that is, a distributed base station. The CU 1402 is the control center of the base station, which may also be referred to as a processing unit, and is mainly used to complete baseband processing functions. For example, the CU 1402 may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.

Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU. For another example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions, and DU implements radio link control (radio link control, RLC), MAC and physical functions. The function of the (physical, PHY) layer.

In addition, optionally, the base station 140 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs. The DU may include at least one processor 14013 and at least one memory 14014, the RU may include at least one antenna 14011 and at least one radio frequency unit 14011, and the CU may include at least one processor 14022 and at least one memory 14021.

For example, in an implementation manner, the processor 14013 is configured to execute the processing steps on the network device side in FIG. 3. The radio frequency unit 14011 is used to perform the receiving and sending operations in steps 301 and 302 in FIG. 3.

In an example, the CU1402 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, and can also support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other network). The memory 14021 and the processor 14022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board. The DU1401 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), or can respectively support wireless access networks with different access standards (such as LTE network, 5G network or other network). The memory 14014 and the processor 14013 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. 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 a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as 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 or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

It should be understood that the processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchronous link DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor. Through the illustration, both the application running on the computing device and the computing device can be components. One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers. In addition, these components can be executed from various computer readable media having various data structures stored thereon. The component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.

It should also be understood that the first, second, and various numerical numbers involved in this specification are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application.

It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone. Among them, the presence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood as having one or more A.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for uplink transmission, characterized in that it comprises:

Receive multiple reference signals from network equipment;

Send a measurement report for measuring the multiple reference signals to the network device, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and is used to indicate the multiple reference signals The downlink beam corresponding to the second reference signal in the signal.
The method according to claim 1, wherein the measurement report includes first reference signal information and second reference signal information, and the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal , The second reference signal information is used to indicate the downlink beam corresponding to the second reference signal.
The method according to claim 2, wherein the first reference signal information comprises a signal identifier of the first reference signal or a resource identifier of the first reference signal.
The 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 an uplink corresponding to the first reference signal. The downlink beam corresponding to the beam and the second reference signal is a low correlation beam, or the uplink beam corresponding to the first uplink reference signal and the downlink beam corresponding to the second reference signal are beams formed by different antenna panels.
The method according to any one of claims 1 to 4, wherein before the sending a measurement report to the network device, the method further comprises:

Receiving instruction information from the network device, where the instruction information is used to instruct the terminal to turn on a first uplink transmission mode, where the first uplink transmission mode is that the uplink beam corresponding to the first reference signal corresponds to the preset reference signal Different transmission modes for uplink beams.
The method according to claim 5, characterized in that, before receiving the indication information sent from the network device, the method further comprises:

Sending 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

Sending second request information to the network device, where the second request information is used to request to exit a second uplink transmission mode, and the second uplink transmission mode is an uplink beam corresponding to the first reference signal and a preset reference signal The corresponding uplink beam has the same transmission mode.
The method according to claim 6, wherein the sending the second request information to the network device comprises:

Send uplink signaling to the network device, where the uplink signaling is used to indicate that blocking is detected or terminal rotation is detected, and the uplink signaling includes the second request information, and the uplink signaling is uplink control Any of the information UCI, media access control control unit MAC CE, physical uplink shared channel PUSCH.
The method according to any one of claims 5 to 7, wherein the method further comprises:

Sending third request information to the network device, where the third request information is used to request to enter a second uplink transmission mode, and the second uplink transmission mode is an uplink beam corresponding to the first reference signal and a preset reference signal The corresponding uplink beam has the same transmission mode; 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 method according to any one of claims 1 to 8, wherein before the sending a measurement report to the network device, the method further comprises:

Send capability information, where the capability information is used to indicate that the terminal supports a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal .
The method according to any one of claims 5 to 9, wherein the first uplink transmission mode comprises a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a sounding reference signal At least one of the first uplink transmission modes of the SRS.
The method according to any one of claims 1 to 10, wherein the method further comprises:

The uplink beam corresponding to the first reference signal is used to perform uplink communication with the network device.
The method according to any one of claims 1 to 11, wherein the method further comprises:

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

Perform uplink communication with the network device according to the uplink transmission power.
A method for uplink transmission, characterized in that it comprises:

Send multiple reference signals to the terminal;

Receive a measurement report from the terminal, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and is used to indicate the second reference signal corresponds to the second reference signal among the multiple reference signals The downlink beam.
The method according to claim 13, wherein the measurement report includes first reference signal information and second reference signal information, and the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal , The second reference signal information is used to indicate the downlink beam corresponding to the second reference signal.
The method according to claim 14, wherein the first reference signal information comprises a signal identifier of the first reference signal or a resource identifier of the first reference signal.
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 an uplink corresponding to the first reference signal. The downlink beam corresponding to the beam and the second reference signal is a low correlation beam, or the uplink beam corresponding to the first uplink reference signal and the downlink beam corresponding to the second reference signal are beams formed by different antenna panels.
The method according to any one of claims 13 to 16, wherein before the receiving the measurement report from the terminal, the method further comprises:

Receiving instruction information from the network device, where the instruction information is used to instruct the terminal to turn on a first uplink transmission mode, where the first uplink transmission mode is that the uplink beam corresponding to the first reference signal corresponds to the preset reference signal Different transmission modes for uplink beams.
The method according to claim 17, wherein before sending the indication information to the terminal, the method further comprises:

Receiving first request information from the terminal, where the first request information is used to request to enter the first uplink transmission mode; and/or

When the first request information is received, the second uplink transmission mode is turned off, and the second uplink transmission mode is transmission in which the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal model.
The method according to claim 17, wherein before sending the indication information to the terminal, the method further comprises:

Receiving second request information from the terminal, where the second request information is used to request to exit a second uplink transmission mode, and the second uplink transmission mode is an uplink beam corresponding to the first reference signal and a preset reference signal The corresponding uplink beams have the same transmission mode;

When the second request information is received, the second uplink transmission mode is turned off.
The method according to claim 19, wherein the receiving the second request information from the terminal comprises:

Receive uplink signaling from the terminal, where the uplink signaling is used to indicate that blocking or rotation of the terminal is detected, and the uplink signaling includes the second request information, and the uplink signaling is uplink control Any of the information UCI, media access control control unit MAC CE, physical uplink shared channel PUSCH.
The method according to any one of claims 17 to 20, wherein the method further comprises:

Receiving 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 an uplink beam corresponding to the first reference signal and a preset reference signal The corresponding uplink beam has the same transmission mode; or

Receiving fourth request information from the terminal, where the fourth request information is used to request to exit the first uplink transmission mode.
The method according to any one of claims 13 to 21, wherein before the sending a measurement report to the network device, the method further comprises:

Receiving capability information, where the capability information is used to indicate that the terminal supports a first uplink transmission mode, where the first uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal .
The method according to any one of claims 17 to 22, wherein the first uplink transmission mode comprises the first uplink transmission mode of PUSCH, the first uplink transmission mode of PUCCH, or the first uplink transmission mode of SRS At least one of.
A device for uplink transmission, characterized in that it comprises:

The receiving module is used to receive multiple reference signals from network equipment;

The sending module is configured to send a measurement report for measuring the multiple reference signals to the network device, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and to indicate A downlink beam corresponding to a second reference signal among the multiple reference signals.
The apparatus according to claim 24, wherein the measurement report includes first reference signal information and second reference signal information, and the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal , The second reference signal information is used to indicate the downlink beam corresponding to the second reference signal.
The apparatus according to claim 25, wherein the first reference signal information comprises a signal identifier of the first reference signal or a resource identifier of the first reference signal.
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 an uplink corresponding to the first reference signal. The downlink beam corresponding to the beam and the second reference signal is a low correlation beam, or the uplink beam corresponding to the first uplink reference signal and the downlink beam corresponding to the second reference signal are beams formed by different antenna panels.
The apparatus according to any one of claims 24 to 27, wherein the receiving module is further configured to receive instruction information from the network device, and the instruction information is used to instruct the terminal to start the first uplink transmission Mode, the first uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.
The apparatus according to claim 28, wherein the sending module is further configured to send first request information to the network device, and the first request information is used to request to enter 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 a second uplink transmission mode, and the second uplink transmission mode corresponds to the first reference signal The uplink beam of is the same transmission mode as the uplink beam corresponding to the preset reference signal.
The device according to claim 29, wherein the sending module is specifically configured to:

Send uplink signaling to the network device, where the uplink signaling is used to indicate that blocking is detected or terminal rotation is detected, and the uplink signaling includes the second request information, and the uplink signaling is uplink control Any of the information UCI, media access control control unit MAC CE, physical uplink shared channel PUSCH.
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, and the third request information is used to request access to the second An uplink transmission mode, where the second uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the 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.
The apparatus according to any one of claims 24 to 31, wherein the sending module is further configured to send capability information, and the capability information is used to indicate that the terminal supports the first uplink transmission mode, and the first The uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.
The apparatus according to any one of claims 28 to 32, wherein the first uplink transmission mode comprises a first uplink transmission mode of PUSCH, a first uplink transmission mode of a physical uplink control channel PUCCH, or a sounding reference signal At least one of the first uplink transmission modes of the SRS.
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.
The device according to any one of claims 24 to 34, wherein the device further comprises a processing module configured to determine the uplink transmission power according to the path loss of the first reference signal;

The sending module is configured to perform uplink communication with the network device according to the uplink transmission power.
A device for uplink transmission, characterized in that it comprises:

The sending module is used to send multiple reference signals to the terminal;

The receiving module is configured to receive a measurement report from the terminal, where the measurement report is used to indicate the uplink beam corresponding to the first reference signal among the multiple reference signals, and the measurement report is used to indicate the measurement report of the multiple reference signals. Downlink beam corresponding to the second reference signal.
The apparatus according to claim 36, wherein the measurement report includes first reference signal information and second reference signal information, and the first reference signal information is used to indicate the uplink beam corresponding to the first reference signal , The second reference signal information is used to indicate the downlink beam corresponding to the second reference signal.
The apparatus according to claim 37, wherein the first reference signal information comprises a signal identifier of the first reference signal or a resource identifier of the first reference signal.
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 an uplink corresponding to the first reference signal. The downlink beam corresponding to the beam and the second reference signal is a low correlation beam, or the uplink beam corresponding to the first uplink reference signal and the downlink beam corresponding to the second reference signal are beams formed by different antenna panels.
The apparatus according to any one of claims 36 to 39, wherein the receiving module is further configured to receive instruction information from the network device, and the instruction information is used to instruct the terminal to start the first uplink transmission Mode, the first uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.
The apparatus according to claim 40, wherein the receiving module is further configured to receive first request information from the terminal, and the first request information is used to request to enter the first uplink transmission mode; and / or

The device further includes a processing module configured to turn off a second uplink transmission mode when the first request information is received, and the second uplink transmission mode is corresponding to the first reference signal The uplink beam has the same transmission mode as the uplink beam corresponding to the preset reference signal.
The apparatus according to claim 40, wherein the receiving module is further configured to receive second request information from the terminal, and the second request information is used to request to exit the second uplink transmission mode, so The second uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal;

The device further includes a processing module configured to turn off the second uplink transmission mode when the second request information is received.
The device according to claim 42, wherein the receiving module is specifically configured to:

Receive uplink signaling from the terminal, where the uplink signaling is used to indicate that blocking or rotation of the terminal is detected, and the uplink signaling includes the second request information, and the uplink signaling is uplink control Any of the information UCI, media access control control unit MAC CE, physical uplink shared channel PUSCH.
The device according to any one of claims 40 to 43, wherein the receiving module is further configured to receive third request information from the terminal, and the third request information is used to request access to the second An uplink transmission mode, where the second uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is the same as the uplink beam corresponding to the preset reference signal; or

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.
The device according to any one of claims 36 to 44, wherein the receiving module is further configured to receive capability information, and the capability information is used to indicate that the terminal supports the first uplink transmission mode, and the first The uplink transmission mode is a transmission mode in which the uplink beam corresponding to the first reference signal is different from the uplink beam corresponding to the preset reference signal.
The apparatus according to any one of claims 40 to 45, wherein the first uplink transmission mode comprises a first uplink transmission mode of PUSCH, a first uplink transmission mode of PUCCH, or a first uplink transmission mode of SRS At least one of.
A communication device, characterized by comprising a processor, a memory, and a transceiver;

The transceiver is used to receive signals or send signals;

The memory is used to store program code;

The processor is configured to call the program code from the memory to execute the method according to any one of claims 1 to 23.
A communication device, comprising: a processor, and when the processor calls a computer program in a memory, the method according to any one of claims 1 to 23 is executed.
A communication device, characterized by comprising: a memory and a processor; the memory is used to store a computer program, and when the processor calls the computer program in the memory, the communication device executes claims 1 to The method of any one of 23.
A computer-readable storage medium, wherein the computer-readable storage medium includes a computer program or instruction, and when the computer program or instruction runs on a computer, the computer executes any one of claims 1 to 23. The method described in the item.
A computer program product, characterized in that the computer program product comprises a computer program or instruction, when the computer program or instruction is run on a computer, the computer is caused to execute any one of claims 1 to 23 method.
A chip, characterized by a processor and a communication interface, the processor being used to execute the method according to any one of claims 1 to 23.
A chip includes a processor, a memory, and a communication interface. The memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of claims 1 to 23.