WO2021159409A1 - Power control method and apparatus, and terminal - Google Patents

Abstract

Provided are a power control method and apparatus, and a terminal. The method comprises: a first terminal receiving first information, wherein the first information is used for determining the transmission configuration of a first physical uplink shared channel (PUSCH) based on configured grant; and the first terminal determining a power scaling coefficient of the first PUSCH, wherein the power scaling coefficient is used for determining an actual transmission power of the first PUSCH.

Description

Power control method, device and terminal Technical field

The embodiments of the present application relate to the field of mobile communication technology, and in particular to a power control method, device, and terminal.

Background technique

During uplink transmission, in order to ensure transmission quality and reduce uplink interference, power control is required. The power control needs to determine the corresponding scaling factor according to different situations. For the first type of configuration authorized PUSCH transmission (Configured grant Type 1 PUSCH transmission), how to determine its power scaling factor needs to be clarified.

Summary of the invention

The embodiments of the present application provide a power control method, device, and terminal.

The power control method provided in the embodiment of the present application includes:

The first terminal receives first information, where the first information is used to determine a first physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission configuration based on a configuration authorization;

The first terminal determines the power scaling factor of the first PUSCH based on the first information, where the power scaling factor is used to determine the actual transmit power of the first PUSCH.

The power control device provided by the embodiment of the present application includes:

A receiving unit, configured to receive first information, where the first information is used to determine a transmission configuration of the first PUSCH based on configuration authorization;

The determining unit is configured to determine the power scaling coefficient of the first PUSCH based on the first information, where the power scaling coefficient is used to determine the actual transmit power of the first PUSCH.

The terminal provided in the embodiment of the present application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above-mentioned power control method.

The chip provided in the embodiment of the present application is used to implement the above-mentioned power control method.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned power control method.

The computer-readable storage medium provided in the embodiments of the present application is used to store a computer program, and the computer program enables a computer to execute the above-mentioned power control method.

The computer program product provided by the embodiment of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned power control method.

The computer program provided by the embodiment of the present application, when it runs on a computer, causes the computer to execute the above-mentioned power control method.

Through the above technical solution, the first terminal determines the power scaling coefficient of the first PUSCH based on the configuration authorization based on the first information, where the first information is used to determine the transmission configuration of the first PUSCH based on the configuration authorization, thereby clarifying the power scaling factor based on the configuration authorization. The scaling factor of the authorized first PUSCH is configured, and the power control of the first PUSCH authorized based on the configuration can be implemented based on the scaling factor.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a power control method provided by an embodiment of the application;

FIG. 3 is a schematic diagram of the structural composition of a power control device provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a chip of an embodiment of the present application;

Fig. 6 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex) , TDD), system, 5G communication system or future communication system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals located in the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB, or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or The network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future communication system, etc.

The communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110. The "terminal" used here includes, but is not limited to, connection via a wired line, such as via a public switched telephone network (PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or a device of another terminal configured to receive/send communication signals; and/or an Internet of Things (IoT) device. A terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device. Terminal can refer to access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user Device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, or terminals in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminals 120.

Optionally, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

FIG. 1 exemplarily shows one network device and two terminals. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminals. This embodiment of the present application There is no restriction on this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal 120 with communication functions, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here; communication The device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means 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, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

Uplink (UL) multiple-input multiple-output (MIMO) transmission

In Rel-15, whether the uplink transmission meets the coherent characteristics can be divided into three types of terminals:

■NonCoherent (non-coherent can be used when describing the terminal, and non-coherent can be used when reporting the UE capability of the terminal): The phases corresponding to any two antenna ports cannot maintain a constant relationship (for example, the difference between the two phases will change. It is difficult to remain unchanged within a certain period of time, or the range of change within a certain period of time exceeds a certain range).

Partial Coherent (partial coherent can be used when describing the terminal, partial coherent is used when reporting the UE capability of the terminal): All antenna ports are divided into multiple groups, and the phases corresponding to the internal antenna ports of each group can maintain a constant relationship (for example, between multiple phases). The difference between the two remains basically unchanged for a certain period of time, or the amplitude of change is within a certain range), but the phases corresponding to the antenna ports between different groups cannot maintain a constant relationship.

■full Coherent (full coherent can be used when describing the terminal, and full coherent when reporting the UE capability of the terminal): A constant relationship can be maintained between the phases corresponding to all antenna ports.

The terminal can report which of the above three capabilities it supports.

■For terminals with 2 antenna ports, there are generally two types of terminals: nonCoherent and fullCoherent.

■For terminals with 4 antenna ports, there are generally three types of terminals: nonCoherent, partialCoherent and fullCoherent.

In Rel-15, NR supports codebook based UL transmission (codebook based UL transmission), and the network uses Downlink Control Information (DCI) to indicate the Transmitted Precoding Matrix Indicator (TPMI), which needs to be explained. Yes, unless otherwise specified, the TPMI involved in the embodiments of the present application may also be described as a precoding matrix (Precoding matrix) or precoding (precoder). By choosing a suitable precoding matrix (here assumed to be

) Makes the signals sent through the two antenna ports of the terminal form a positive superposition, thereby improving the receiving performance of the receiving end. Therefore, it is necessary to ensure that within a certain period of time, the phase difference between the two antenna ports of the terminal is controlled within a certain range (for the convenience of description, referred to as the constant condition), so as to ensure that the signal received by the final receiving terminal is positively superimposed; If the phase difference corresponding to the two antenna ports of the terminal exceeds a certain range, the receiving end cannot guarantee whether the signals corresponding to the two antenna ports are orthogonally superimposed or negatively superimposed, which affects the receiving performance of the receiving end.

If it is a nonCoherent 2-antenna port terminal, for a data stream (1 layer) transmission, you can use the precoding matrix:

Therefore, it is not necessary to transmit the signals of the two antenna ports at the same time.

For the above reasons, in Rel-15, the upstream precoding matrix (or TPMI) is divided into different groups, that is, divided into different codebook subsets. The current agreement stipulates the following three different codebook subsets:

■fullyAndPartialAndNonCoherent: can be used for fullCoherent terminal.

■partialAndNonCoherent: can be used for partialCoherent terminal and fullCoherent terminal.

■nonCoherent: can be used for nonCoherent terminals, partialCoherent terminals, and fullCoherent terminals.

Among them, for the case of 4 antenna ports: nonCoherent is a subset of partialAndNonCoherent, and partialAndNonCoherent is a subset of fullyAndPartialAndNonCoherent.

For the case of 2 antenna ports: nonCoherent is a subset of fullyAndPartialAndNonCoherent.

PUSCH with Configured Grant (PUSCH with Configured Grant)

In NR, the PUSCH can be dynamically scheduled through DCI, and can also be scheduled through the first type of configuration grant (configured grant Type 1) or the second type of configuration grant (configured grant Type 2).

■The first type of configuration authorized PUSCH transmission (Configured grant Type 1 PUSCH transmission)

o Semi-statically configured by the high-level parameter configuredGrantConfig, where configuredGrantConfig contains the parameter rrc-ConfiguredUplinkGrant.

o It does not need to be activated by detecting the UL grant in the DCI.

■The second type of configuration authorized PUSCH transmission (Configured grant Type 2 PUSCH transmission)

o Semi-statically configured by the high-level parameter configuredGrantConfig, in which the configuredGrantConfig does not include the parameter rrc-ConfiguredUplinkGrant.

o Semi-continuous scheduling through a valid activation of DCI.

Uplink transmit power problem

During uplink transmission, in order to ensure transmission quality and reduce uplink interference, power control is required. The terminal first determines a calculated transmit power according to network configuration information and/or scheduling information corresponding to uplink transmission (for example, frequency domain resource allocation, TPC command, modulation mode, etc.). Then, according to different situations, there are two processing methods for the calculated transmit power:

1. Perform power scaling (scaling), and the scaling factor s (scaling factor) is less than or equal to 1.

2. No power scaling (equivalent to a scaling factor s of 1): For example, 1-port UL transmission does not perform power scaling, and another example is non-codebook based UL transmission. ) Does not perform power scaling.

The scaling factor s is determined according to the number of non-zero ports of the transmitted PUSCH and the maximum number of SRS resources that the terminal can support (the number of non-zero ports of the PUSCH divided by the maximum number of SRS resources that the terminal can support). For example, for a nonCoherent 2-antenna port terminal, the precoding matrix is

Because the number of non-zero ports of the PUSCH is 1, and the maximum number of SRS resources that the terminal can support is 2, the scaling factor is 1/2. That is, the actual transmit power can only be half of the calculated transmit power, which will cause the actual maximum transmit power to be only half of the maximum transmit power of the terminal when a layer is transmitted.

Rel-16 method to solve the above power problem

In order to solve the above-mentioned situation that nonCoherent terminals and partial Coherent terminals under Rel-15 cannot use the maximum power transmission of the terminal in some cases, Rel-16 has studied some methods to enable these terminals to use the maximum power transmission (referred to as full power transmission for short) ：UL full power transmission):

■Method 1 (referred to as Mode 0 for short): The terminal can support a full-power power amplifier (PA), that is, a single PA can reach the maximum transmission power of the terminal's corresponding power level. For this type of terminal, there is no need to scale the calculated power (similar to the effect of a scaling factor of 1). The terminal needs to report the corresponding capabilities to the network to let the network know that the terminal can support: no need to scale the calculated transmit power.

■Method 2 (referred to as Mode 1 for short): For nonCoherent terminals and partial Coherent terminals, one or more TPMIs that only coherent terminals can use can be used, for example

Although the superposition effect of the signals corresponding to different antenna ports cannot be guaranteed, more transmission power can be used.

■Method 3 (referred to as Mode 2): For non-Coherent terminals and partial Coherent terminals, the network configures an SRS resource set (SRS resource set) corresponding to codebook based UL transmission, and the SRS resource set in this SRS resource group The number of ports can be different. Optionally, the terminal can report which TPMI (or precoding matrix) can support full power transmission (UL full power transmission).

a) For example, for a 4-antenna port terminal, the network configures a 1-port SRS resource, a 2-port SRS resource, and a 4-port SRS resource in the SRS resource group. For the 1-port/2-port SRS resource transmission, the terminal can adopt the antenna virtualization method (that is, 4 antennas are virtualized into one antenna port for transmission, or 2 antennas are virtualized into one antenna port for transmission), or antenna virtualization is not used .

b) If the terminal reports that a certain TPMI can support full power transmission, then when this TPMI is scheduled for uplink transmission, when determining the corresponding uplink transmission power, there is no need to scale the calculated power (equivalent, The scaling factor is 1), but the calculated power is directly divided into various non-zero ports.

For the above methods, the following different methods are used for power scaling.

■For Method 1 (Mode 0), no power scaling is performed, or equivalently, the power scaling factor s is 1.

■For Method 2 (Mode 1), the determination of the power scaling factor s is similar to the Rel-15 method, that is, the scaling factor s is based on the number of non-zero ports of the PUSCH transmitted and the maximum number of SRS resources that the terminal can support (PUSCH non-zero The number of ports is divided by the maximum number of SRS resources that the terminal can support) to determine.

■For Method 3 (Mode 2), if the TPMI corresponding to a certain transmission is reported by the terminal and can support full power transmission, then power scaling is not performed, or equivalently, the power scaling factor s is 1; for other TPMIs, then The power scaling factor s is determined according to the number of non-zero ports of the transmitted PUSCH.

UE capability reporting based on TPMI

For a terminal that supports Mode 2, it can report which TPMI or precoding matrix can support full-power transmission (referred to as TPMI-based UE capability reporting for short).

For the case of 2 antenna ports (including the case of 2 antennas and the case of 4 antennas virtualized with 2 antenna ports):

■Indicated by a bitmap with a length of 2 bits:

(Rank 1: support{TPMI=0}and{TPMI=1}).

For the case of 4 antenna ports:

■For non-Coherent terminals, use 2 bits to indicate a set of precoding matrices in G0-G3 in Table 1 below (or equivalently described as a set of TPMI, or called a TPMI group).

■For partial Coherent terminals, 4 bits are used to indicate a group of precoding matrix (or equivalently described as a group of TPMI) in G0-G6 in Table 1 below, and other groups can be added later (based on G0-G6) It is used for reporting, but only these 4 bits can be used, and no extra bits can be added.

4Tx,nonCoherent	4Tx,partial coherent(4bit)
G0	G0
G1	G1
G2	G2
G3	G3
To	G4
To	G5
To	G6
To	To

Table 1

The content of G0,..., G6 can refer to Table 2 below (assuming 23dBm corresponding to the terminal power level).

Table 2

The current method 3 (Mode 2) cannot well support the full power transmission of PUSCH transmission authorized by the first type of configuration. In response to this situation, the following technical solutions of the embodiments of the present application are proposed. The technical solutions of the embodiments of the present application are intended to A corresponding full-power transmission scheme is proposed for the PUSCH transmission authorized for the first type of configuration, so that it can also use the transmission power more effectively, increase the coverage of the PUSCH, and improve the system performance.

FIG. 2 is a schematic flowchart of a power control method provided by an embodiment of the application. As shown in FIG. 2, the power control method includes the following steps:

Step 201: The first terminal receives first information, where the first information is used to determine the transmission configuration of the first PUSCH based on the configuration authorization.

● In this embodiment of the application, the first terminal may receive the first information in the following manner:

1) The first terminal receives first RRC signaling sent by a network device, where the first RRC signaling indicates the first information.

Here, the first information is transmitted through first RRC signaling, and the first RRC signaling is sent from the network device to the first terminal.

2) The first terminal receives the first RRC signaling sent by the second terminal, and the first RRC signaling indicates the first information.

Here, the first information is transmitted through first RRC signaling, and the first RRC signaling is sent from the second terminal to the first terminal. This method is suitable for scenarios of V2X communication, D2D communication, or side link communication, and can better support the communication between the terminal and the terminal.

In the embodiment of the present application, the first information is used to determine the transmission configuration of the first PUSCH authorized based on the configuration. Accordingly, the first terminal may transmit the first PUSCH authorized based on the configuration based on the first information.

Further, optionally, the first information is: configuration information based on configuration authorization (configuredGrantConfig). Here, configuredGrantConfig is a high-level parameter.

Further, optionally, the first information includes radio resource control-configured uplink grant information (rrc-ConfiguredUplinkGrant). It can be seen that the transmission of the first PUSCH belongs to the first type of configuration authorized PUSCH transmission (Configured grant Type 1 PUSCH transmission).

Further, optionally, the first information includes first indication information, and the first indication information is used to indicate the first SRS resource. Further, optionally, the first indication information is SRS resource indication information (srs-ResourceIndicator).

In specific implementation, the configuredGrantConfig includes the parameter rrc-ConfiguredUplinkGrant, and the rrc-ConfiguredUplinkGrant includes the parameter srs-ResourceIndicator.

● In an optional manner of this application, the first terminal receives second information, and the second information is used to instruct the first terminal to use uplink full power transmission mode 2. Here, the uplink full power transmission mode 2 can refer to the description related to the method 3 (Mode 2) above. It should be noted that the embodiment of the present application does not limit the name of "uplink full power transmission mode 2", and other names may also be used to describe "uplink full power transmission mode 2", such as "mode2".

In the embodiment of the present application, the first terminal may receive the second information in the following manner:

1) The first terminal receives second RRC signaling sent by a network device, where the second RRC signaling indicates the second information.

Here, the second information is transmitted through second RRC signaling, and the second RRC signaling is sent from the network device to the first terminal.

2) The first terminal receives the second RRC signaling sent by the second terminal, and the second RRC signaling indicates the second information.

Here, the second information is transmitted through second RRC signaling, and the second RRC signaling is sent from the second terminal to the first terminal. This method is suitable for scenarios of V2X communication, D2D communication, or side link communication, and can better support the communication between the terminal and the terminal.

Further, optionally, the first terminal reports the first UE capability, and the first UE capability is used to indicate that the first terminal supports uplink full power transmission mode 2 (ie Mode 2).

Here, the first terminal may report the first UE capability in the following manner:

1) The first terminal reports the first UE capability to the network device. Further, optionally, the first UE capability is forwarded to the second terminal by the network device. or,

2) The first terminal reports the first UE capability to the second terminal. This method is suitable for scenarios of V2X communication, D2D communication, or side link communication, and can better support the communication between the terminal and the terminal.

Further, optionally, the first UE capability is also used to indicate a TPMI group or TPMI that supports uplink full power transmission.

Here, for a terminal that supports Mode 2, in addition to reporting its ability to support Mode 2, it can also report a TPMI group or TPMI that supports uplink full-power transmission. It should be noted that TPMI can also be described as a precoding matrix or precoding correspondingly.

Further, optionally, 1) the TPMI group or TPMI is indicated by a bitmap; or, 2) the TPMI group or TPMI is indicated by N bits, where N is a positive integer; or, 3) the TPMI group or The first subset in the TPMI is indicated by a bitmap, and the TPMI group or the second subset in the TPMI is indicated by N bits, where N is a positive integer.

For example: if the TPMI group or TPMI corresponds to 2 antenna ports, the TPMI group or TPMI is indicated by a 2-bit bitmap. This situation is applicable to the situation where the terminal reports the TPMI group or TPMI to the 2-antenna port. Here, each bit in the bitmap corresponds to a TPMI group or TPMI, and the value of the bit is used to indicate whether the TPMI group or TPMI corresponding to the bit supports uplink full power transmission. For example, a value of 1 indicates that the uplink full power transmission is supported, and a value of 0 indicates that the uplink full power transmission is not supported.

For example: if the TPMI group or TPMI corresponds to 4 antenna ports, the TPMI group or TPMI is indicated by 4 bits. This situation is applicable to the situation where the terminal reports the TPMI group or TPMI to the 4-antenna port. Here, different values of 4 bits correspond to different TPMI groups or TPMIs. According to the value of 4 bits, a TPMI group or TPMI can be determined, and the determined TPMI group or TPMI supports uplink full power transmission.

For example: if the first subset in the TPMI group or TPMI corresponds to 2 antenna ports, and the second subset in the TPMI group or TPMI corresponds to 4 antenna ports, then the first subset in the TPMI group or TPMI It is indicated by a 2-bit bitmap, and the TPMI group or the second subset in the TPMI is indicated by 4 bits. This situation is applicable to the situation where the terminal simultaneously reports the TPMI group or TPMI to the 2-antenna port and the 4-antenna port.

● In an optional manner of this application, the first terminal receives third information, the third information is used to determine the SRS resource group, and the usage parameter (usage) corresponding to the SRS resource group is set to the codebook ( codebook); wherein, the SRS resource group includes at least 2 SRS resources.

In the embodiment of the present application, the first terminal may receive the third information in the following manner:

1) The first terminal receives third RRC signaling sent by a network device, where the third RRC signaling indicates the third information.

Here, the third information is transmitted through third RRC signaling, and the third RRC signaling is sent from the network device to the first terminal.

2) The first terminal receives the third RRC signaling sent by the second terminal, and the third RRC signaling indicates the third information.

Here, the third information is transmitted through third RRC signaling, and the third RRC signaling is sent from the second terminal to the first terminal. This method is suitable for scenarios of V2X communication, D2D communication, or side link communication, and can better support the communication between the terminal and the terminal.

Further, optionally, the numbers of ports corresponding to at least part of the SRS resources in the SRS resource group are different. For example, in some SRS resources in the SRS resource group, different SRS resources correspond to different numbers of ports. For example, among all SRS resources in the SRS resource group, different SRS resources correspond to different numbers of ports.

Further, optionally, the number of SRS resources in the SRS resource group is 2 or 4 at most.

Further, optionally, the maximum number of SRS resources in the SRS resource group can be determined in the following manner:

1) The first terminal reports the second UE capability, and the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is at most 2. In this case, the SRS in the SRS resource group The maximum number of resources is 2. The first terminal reports the second UE capability, and the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is 4 at most. In this case, the number of SRS resources in the SRS resource group is The maximum number is 4.

2) In the case where the first terminal reports the second UE capability, the number of SRS resources in the SRS resource group is at most 4; or, in the case where the first terminal does not report the second UE capability, The number of SRS resources in the SRS resource group is at most two; wherein, the second UE capability is used to indicate that the number of SRS resources in the SRS resources supported by the first terminal is at most four.

Here, the first terminal may report the second UE capability in the following manner:

1) The first terminal reports the second UE capability to the network device. Further, optionally, the second UE capability is forwarded to the second terminal by the network device. or,

2) The first terminal reports the second UE capability to the second terminal. This method is suitable for scenarios of V2X communication, D2D communication, or side link communication, and can better support the communication between the terminal and the terminal.

Further, optionally, all SRS resources in the SRS resource group correspond to M different spatial relation information, and M is a positive integer less than or equal to 2. Here, in the SRS resource group, one SRS resource corresponds to one spatial relationship information, and all SRS resources in the SRS resource group correspond to no more than two different spatial relationship information. It should be noted that the spatial relationship information has a corresponding relationship with the beam.

Step 202: The first terminal determines the power scaling factor of the first PUSCH based on the first information, where the power scaling factor is used to determine the actual transmit power of the first PUSCH.

In the embodiment of the present application, when the first terminal transmits the first PUSCH, the actual transmission power corresponding to the first PUSCH is determined according to the corresponding power scaling coefficient, and the first PUSCH is transmitted according to the actual transmission power.

In the embodiment of the present application, the first terminal determines the power scaling factor of the first PUSCH in the following manner:

Manner 1: If the TPMI corresponding to the first PUSCH is the TPMI indicated by the first terminal in the first UE capability, the first terminal determines that the power scaling factor of the first PUSCH is 1 (or equivalent Ground, there is no need to perform power scaling on the first PUSCH). Wherein, the TPMI corresponding to the first PUSCH is determined according to the first information.

Here, the TPMI indicated in the first UE capability is a TPMI that supports uplink full power transmission. When the terminal uses the TPMI that supports uplink full power transmission, power scaling is not required, that is, the scaling factor is 1, which can increase coverage and improve transmission performance.

Manner 2: If the TPMI corresponding to the first PUSCH is not the TPMI indicated by the first terminal in the first UE capability, then the first terminal according to the number of non-zero ports of the first PUSCH and the first SRS resource The number of ports determines the power scaling factor of the first PUSCH, where the TPMI corresponding to the first PUSCH and the first SRS resource are determined according to the first information.

Here, the TPMI indicated in the first UE capability is a TPMI that supports uplink full power transmission. The TPMI corresponding to the first PUSCH does not support uplink full power transmission, and the power scaling factor of the first PUSCH is the ratio of the number of non-zero ports of the first PUSCH to the number of ports of the first SRS resource. Here, the first SRS resource is determined based on the first information in the above solution in the embodiment of the present application, that is, the first information includes first indication information, and the first indication information is used to indicate the first SRS resource . Further, optionally, the first indication information is SRS resource indication information (srs-ResourceIndicator). In specific implementation, the configuredGrantConfig (that is, the first information) includes the parameter rrc-ConfiguredUplinkGrant, and the rrc-ConfiguredUplinkGrant includes the parameter srs-ResourceIndicator (that is, the first indication information).

Through the above technical solutions of the embodiments of this application, the first type of configuration authorized PUSCH transmission (Configured grant Type 1 PUSCH transmission) can support uplink full power transmission mode 2. When the terminal uses the TPMI that supports uplink full power transmission to transmit the first PUSCH When the power scaling is not required, that is, the scaling factor is 1, which can increase the coverage of the first PUSCH and improve the transmission performance of the first PUSCH.

FIG. 3 is a schematic structural composition diagram of a power control device provided by an embodiment of the application, which is applied to a first terminal. As shown in FIG. 3, the power control device includes:

The receiving unit 301 is configured to receive first information, where the first information is used to determine the transmission configuration of the first PUSCH based on the configuration authorization;

The determining unit 302 is configured to determine the power scaling coefficient of the first PUSCH according to the first information, where the power scaling coefficient is used to determine the actual transmit power of the first PUSCH.

In an implementation manner, the receiving unit 301 is further configured to receive second information, and the second information is used to instruct the first terminal to use uplink full power transmission mode 2.

In an embodiment, the device further includes:

The reporting unit 303 is configured to report the first UE capability, where the first UE capability is used to indicate that the first terminal supports uplink full power transmission mode 2.

In an embodiment, the first UE capability is also used to indicate a TPMI group or TPMI that supports uplink full power transmission.

In an embodiment, the TPMI group or TPMI is indicated by a bitmap; or,

The TPMI group or TPMI is indicated by N bits, where N is a positive integer; or,

The TPMI group or the first subset in the TPMI is indicated by a bitmap, and the TPMI group or the second subset in the TPMI is indicated by N bits, where N is a positive integer.

In an embodiment, if the TPMI group or TPMI corresponds to 2 antenna ports, the TPMI group or TPMI is indicated by a 2-bit bitmap; or,

If the TPMI group or TPMI corresponds to 4 antenna ports, the TPMI group or TPMI is indicated by 4 bits; or,

If the first subset in the TPMI group or TPMI corresponds to 2 antenna ports, and the second subset in the TPMI group or TPMI corresponds to 4 antenna ports, then the first subset in the TPMI group or TPMI passes 2 The bitmap of the bits is used for indication, and the TPMI group or the second subset in the TPMI is indicated by 4 bits.

In an embodiment, the reporting unit 303 is configured to report the first UE capability to a network device.

In an embodiment, the first UE capability is forwarded by the network device to the second terminal.

In an embodiment, the reporting unit 303 is configured to report the first UE capability to the second terminal.

In an implementation manner, the receiving unit 301 is configured to receive second RRC signaling sent by a network device, where the second RRC signaling indicates the second information; or, receive second RRC signaling sent by a second terminal Signaling, the second RRC signaling indicates the second information.

In one embodiment, the receiving unit 301 is further configured to receive third information, the third information is used to determine an SRS resource group, and the usage parameter corresponding to the SRS resource group is set as a codebook; wherein, The SRS resource group includes at least 2 SRS resources.

In an embodiment, the number of ports corresponding to at least part of the SRS resources in the SRS resource group is different.

In an embodiment, the number of SRS resources in the SRS resource group is 2 or 4 at most.

In an embodiment, the device further includes:

The reporting unit 303 is configured to report a second UE capability, where the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is 2 or 4 at most.

In an embodiment, the device further includes: a reporting unit 303;

When the reporting unit 303 reports the second UE capability, the number of SRS resources in the SRS resource group is 4 at most; or,

In the case that the reporting unit 303 does not report the second UE capability, the number of SRS resources in the SRS resource group is at most two;

Wherein, the second UE capability is used to indicate that the number of SRS resources in the SRS resources supported by the first terminal is 4 at most.

In an embodiment, the reporting unit 303 is configured to report the second UE capability to a network device.

In an embodiment, the second UE capability is forwarded by the network device to the second terminal.

In an embodiment, the reporting unit 303 is configured to report the second UE capability to the second terminal.

In an embodiment, all SRS resources in the SRS resource group correspond to M different spatial relationship information, and M is a positive integer less than or equal to 2.

In an implementation manner, the receiving unit 301 is configured to receive third RRC signaling sent by a network device, where the third RRC signaling indicates the third information; or, receive a third RRC signaling sent by a second terminal Signaling, the third RRC signaling indicates the third information.

In an embodiment, the determining unit 302 is configured to determine the power scaling factor of the first PUSCH if the TPMI corresponding to the first PUSCH is the TPMI indicated by the first terminal in the first UE capability Is 1, wherein the TPMI corresponding to the first PUSCH is determined according to the first information.

In an implementation manner, the determining unit 302 is configured to, if the TPMI corresponding to the first PUSCH is not the TPMI indicated by the first terminal in the first UE capability, according to the non-zero port of the first PUSCH The number and the number of ports of the first SRS resource determine the power scaling factor of the first PUSCH, where the TPMI corresponding to the first PUSCH and the first SRS resource are determined according to the first information.

In an embodiment, the power scaling factor of the first PUSCH is a ratio of the number of non-zero ports of the first PUSCH to the number of ports of the first SRS resource.

In an implementation manner, the first information includes first indication information, and the first indication information is used to indicate the first SRS resource.

In an embodiment, the first indication information is SRS resource indication information srs-ResourceIndicator.

In an embodiment, the first information is: configuration information configuredGrantConfig based on configuration authorization.

In an embodiment, the first information includes radio resource control-configuration uplink grant information rrc-ConfiguredUplinkGrant.

In an embodiment, the receiving unit 301 is configured to receive first RRC signaling sent by a network device, where the first RRC signaling indicates the first information; or, receive the first RRC signaling sent by the second terminal Signaling, the first RRC signaling indicates the first information.

Those skilled in the art should understand that the relevant description of the foregoing power control device in the embodiment of the present application can be understood with reference to the relevant description of the power control method in the embodiment of the present application.

FIG. 4 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. The communication device may be a terminal or a network device. The communication device 400 shown in FIG. 4 includes a processor 410, and the processor 410 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 4, the communication device 400 may further include a memory 420. The processor 410 may call and run a computer program from the memory 420 to implement the method in the embodiment of the present application.

The memory 420 may be a separate device independent of the processor 410, or may be integrated in the processor 410.

Optionally, as shown in FIG. 4, the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 400 may specifically be a network device of an embodiment of the application, and the communication device 400 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For the sake of brevity, it will not be repeated here. .

Optionally, the communication device 400 may specifically be a mobile terminal/terminal according to an embodiment of the present application, and the communication device 400 may implement the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application. For the sake of brevity, This will not be repeated here.

Fig. 5 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 500 shown in FIG. 5 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 5, the chip 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, the chip 500 may further include an input interface 530. The processor 510 can control the input interface 530 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 500 may further include an output interface 540. The processor 510 can control the output interface 540 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the chip can be applied to the mobile terminal/terminal in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be omitted here Go into details.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

FIG. 6 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 6, the communication system 600 includes a terminal 610 and a network device 620.

The terminal 610 may be used to implement the corresponding functions implemented by the terminal in the foregoing method, and the network device 620 may be used to implement the corresponding functions implemented by the network device in the foregoing method. For brevity, details are not described herein again.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor can 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 (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 a random access memory (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), 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 (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), 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 connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application, in order to It's concise, so I won't repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Go into details again.

Optionally, the computer program product can be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the mobile terminal/terminal in the embodiments of the present application. When the computer program runs on the computer, the computer can execute the corresponding methods implemented by the mobile terminal/terminal in the various methods of the embodiments of the present application. For the sake of brevity, the process will not be repeated here.

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 merely 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 disks or optical disks and other media that can store program codes. .

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 shall be subject to the protection scope of the claims.

Claims (61)

1. A power control method, the method includes:

   The first terminal receives first information, where the first information is used to determine the transmission configuration of the first physical uplink shared channel PUSCH based on the configuration grant;

   The first terminal determines the power scaling factor of the first PUSCH based on the first information, where the power scaling factor is used to determine the actual transmit power of the first PUSCH.
2. The method according to claim 1, wherein the method further comprises:

   The first terminal receives second information, where the second information is used to instruct the first terminal to use uplink full power transmission mode 2.
3. The method according to claim 2, wherein the method further comprises:

   The first terminal reports the first UE capability, and the first UE capability is used to indicate that the first terminal supports uplink full power transmission mode 2.
4. The method according to claim 3, wherein the first UE capability is further used to indicate a transmission precoding indicator TPMI group or TPMI that supports uplink full power transmission.
5. The method of claim 4, wherein:

   The TPMI group or TPMI is indicated by a bitmap; or,

   The TPMI group or TPMI is indicated by N bits, where N is a positive integer; or,

   The TPMI group or the first subset in the TPMI is indicated by a bitmap, and the TPMI group or the second subset in the TPMI is indicated by N bits, where N is a positive integer.
6. The method of claim 5, wherein:

   If the TPMI group or TPMI corresponds to 2 antenna ports, the TPMI group or TPMI is indicated by a 2-bit bitmap; or,

   If the TPMI group or TPMI corresponds to 4 antenna ports, the TPMI group or TPMI is indicated by 4 bits; or,

   If the first subset in the TPMI group or TPMI corresponds to 2 antenna ports, and the second subset in the TPMI group or TPMI corresponds to 4 antenna ports, then the first subset in the TPMI group or TPMI passes 2 The bitmap of the bits is used for indication, and the TPMI group or the second subset in the TPMI is indicated by 4 bits.
7. The method according to any one of claims 3 to 6, wherein the reporting of the first UE capability by the first terminal comprises:

   The first terminal reports the first UE capability to the network device.
8. The method according to claim 7, wherein the first UE capability is forwarded by the network device to the second terminal.
9. The method according to any one of claims 3 to 6, wherein the reporting of the first UE capability by the first terminal comprises:

   The first terminal reports the first UE capability to the second terminal.
10. The method according to any one of claims 2 to 9, wherein the first terminal receiving the second information includes:

    The first terminal receives second RRC signaling sent by the network device, where the second RRC signaling indicates the second information; or,

    The first terminal receives the second RRC signaling sent by the second terminal, and the second RRC signaling indicates the second information.
11. The method according to any one of claims 1 to 10, wherein the method further comprises:

    The first terminal receives third information, the third information is used to determine a sounding reference signal SRS resource group, and the usage parameter corresponding to the SRS resource group is set as a codebook; wherein, the SRS resource group includes at least 2 SRS resources.
12. The method according to claim 11, wherein the numbers of ports corresponding to at least part of the SRS resources in the SRS resource group are different.
13. The method according to claim 11 or 12, wherein the number of SRS resources in the SRS resource group is 2 or 4 at most.
14. The method according to claim 13, wherein the method further comprises:

    The first terminal reports a second UE capability, and the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is 2 or 4 at most.
15. The method according to claim 13, wherein the method further comprises:

    In the case where the first terminal reports the capabilities of the second UE, the number of SRS resources in the SRS resource group is at most 4; or,

    In the case that the first terminal does not report the capability of the second UE, the number of SRS resources in the SRS resource group is at most two;

    Wherein, the second UE capability is used to indicate that the number of SRS resources in the SRS resources supported by the first terminal is 4 at most.
16. The method according to claim 14 or 15, wherein the reporting of the second UE capability by the first terminal includes:

    The first terminal reports the second UE capability to the network device.
17. The method according to claim 16, wherein the second UE capability is forwarded by the network device to the second terminal.
18. The method according to claim 14 or 15, wherein the reporting of the second UE capability by the first terminal includes:

    The first terminal reports the second UE capability to the second terminal.
19. The method according to any one of claims 11 to 18, wherein all SRS resources in the SRS resource group correspond to M different spatial relationship information, and M is a positive integer less than or equal to 2.
20. The method according to any one of claims 11 to 19, wherein the first terminal receiving third information includes:

    The first terminal receives third RRC signaling sent by the network device, where the third RRC signaling indicates the third information; or,

    The first terminal receives third RRC signaling sent by the second terminal, where the third RRC signaling indicates the third information.
21. The method according to any one of claims 1 to 20, wherein the first terminal determining the power scaling factor of the first PUSCH based on the first information comprises:

    If the TPMI corresponding to the first PUSCH is the TPMI indicated by the first terminal in the first UE capability, the first terminal determines that the power scaling factor of the first PUSCH is 1, and the first PUSCH corresponds to The TPMI is determined according to the first information.
22. The method according to any one of claims 1 to 21, wherein the first terminal determining the power scaling factor of the first PUSCH based on the first information comprises:

    If the TPMI corresponding to the first PUSCH is not the TPMI indicated by the first terminal in the first UE capability, the first terminal will use the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource The power scaling coefficient of the first PUSCH is determined, where the TPMI corresponding to the first PUSCH and the first SRS resource are determined according to the first information.
23. The method according to claim 22, wherein the power scaling factor of the first PUSCH is a ratio of the number of non-zero ports of the first PUSCH to the number of ports of the first SRS resource.
24. The method according to claim 22 or 23, wherein the first information includes first indication information, and the first indication information is used to indicate the first SRS resource.
25. The method according to claim 24, wherein the first indication information is SRS resource indication information srs-ResourceIndicator.
26. The method according to any one of claims 1 to 25, wherein the first information is: configuration information configuredGrantConfig based on configuration authorization.
27. The method according to claim 26, wherein the first information includes radio resource control-configured uplink grant information rrc-ConfiguredUplinkGrant.
28. The method according to any one of claims 1 to 27, wherein the first terminal receiving the first information comprises:

    Receiving, by the first terminal, first RRC signaling sent by a network device, where the first RRC signaling indicates the first information; or,

    The first terminal receives the first RRC signaling sent by the second terminal, and the first RRC signaling indicates the first information.
29. A power control device, the device includes:

    A receiving unit, configured to receive first information, where the first information is used to determine a transmission configuration of the first PUSCH based on configuration authorization;

    The determining unit is configured to determine the power scaling coefficient of the first PUSCH based on the first information, where the power scaling coefficient is used to determine the actual transmit power of the first PUSCH.
30. The apparatus according to claim 29, wherein the receiving unit is further configured to receive second information, and the second information is used to instruct the first terminal to use uplink full power transmission mode 2.
31. The device according to claim 30, wherein the device further comprises:

    The reporting unit is configured to report the first UE capability, where the first UE capability is used to indicate that the first terminal supports uplink full power transmission mode 2.
32. The apparatus according to claim 31, wherein the first UE capability is further used to indicate a TPMI group or TPMI that supports uplink full power transmission.
33. The device according to claim 32, wherein:

    The TPMI group or TPMI is indicated by a bitmap; or,

    The TPMI group or TPMI is indicated by N bits, where N is a positive integer; or,

    The TPMI group or the first subset in the TPMI is indicated by a bitmap, and the TPMI group or the second subset in the TPMI is indicated by N bits, where N is a positive integer.
34. The device according to claim 33, wherein:

    If the TPMI group or TPMI corresponds to 2 antenna ports, the TPMI group or TPMI is indicated by a 2-bit bitmap; or,

    If the TPMI group or TPMI corresponds to 4 antenna ports, the TPMI group or TPMI is indicated by 4 bits; or,

    If the first subset in the TPMI group or TPMI corresponds to 2 antenna ports, and the second subset in the TPMI group or TPMI corresponds to 4 antenna ports, then the first subset in the TPMI group or TPMI passes 2 The bitmap of the bits is used for indication, and the TPMI group or the second subset in the TPMI is indicated by 4 bits.
35. The apparatus according to any one of claims 31 to 34, wherein the reporting unit is configured to report the first UE capability to a network device.
36. The apparatus according to claim 35, wherein the first UE capability is forwarded by the network device to the second terminal.
37. The apparatus according to any one of claims 31 to 34, wherein the reporting unit is configured to report the first UE capability to a second terminal.
38. The apparatus according to any one of claims 30 to 37, wherein the receiving unit is configured to receive second RRC signaling sent by a network device, the second RRC signaling indicating the second information; or To receive second RRC signaling sent by the second terminal, where the second RRC signaling indicates the second information.
39. The apparatus according to any one of claims 29 to 38, wherein the receiving unit is further configured to receive third information, and the third information is used to determine the SRS resource group, and the usage of the SRS resource group The parameter is set to codebook; wherein, the SRS resource group includes at least 2 SRS resources.
40. The apparatus according to claim 39, wherein the numbers of ports corresponding to at least part of the SRS resources in the SRS resource group are different.
41. The apparatus according to claim 39 or 40, wherein the number of SRS resources in the SRS resource group is 2 or 4 at most.
42. The device according to claim 41, wherein the device further comprises:

    The reporting unit is configured to report a second UE capability, where the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is 2 or 4 at most.
43. The device according to claim 41, wherein the device further comprises: a reporting unit;

    In the case where the reporting unit reports the capability of the second UE, the number of SRS resources in the SRS resource group is at most 4; or,

    In the case that the reporting unit does not report the second UE capability, the number of SRS resources in the SRS resource group is at most two;

    Wherein, the second UE capability is used to indicate that the number of SRS resources in the SRS resources supported by the first terminal is 4 at most.
44. The apparatus according to claim 42 or 43, wherein the reporting unit is configured to report the second UE capability to a network device.
45. The apparatus according to claim 44, wherein the second UE capability is forwarded by the network device to the second terminal.
46. The apparatus according to claim 42 or 43, wherein the reporting unit is configured to report the second UE capability to the second terminal.
47. The apparatus according to any one of claims 39 to 46, wherein all SRS resources in the SRS resource group correspond to M different spatial relationship information, and M is a positive integer less than or equal to 2.
48. The apparatus according to any one of claims 39 to 47, wherein the receiving unit is configured to receive third RRC signaling sent by a network device, the third RRC signaling indicating the third information; or , Receiving third RRC signaling sent by the second terminal, where the third RRC signaling indicates the third information.
49. The apparatus according to any one of claims 29 to 48, wherein the determining unit is configured to, if the TPMI corresponding to the first PUSCH is the TPMI indicated by the first terminal in the first UE capability, It is determined that the power scaling factor of the first PUSCH is 1, and the TPMI corresponding to the first PUSCH is determined according to the first information.
50. The apparatus according to any one of claims 29 to 49, wherein the determining unit is configured to: if the TPMI corresponding to the first PUSCH is not the TPMI indicated by the first terminal in the first UE capability, The power scaling factor of the first PUSCH is determined according to the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource, where the TPMI corresponding to the first PUSCH and the first SRS resource are determined according to the The first information is confirmed.
51. The apparatus of claim 50, wherein the power scaling factor of the first PUSCH is a ratio of the number of non-zero ports of the first PUSCH to the number of ports of the first SRS resource.
52. The apparatus according to claim 50 or 51, wherein the first information includes first indication information, and the first indication information is used to indicate the first SRS resource.
53. The apparatus according to claim 52, wherein the first indication information is SRS resource indication information srs-ResourceIndicator.
54. The apparatus according to any one of claims 29 to 53, wherein the first information is: configuration information configuredGrantConfig based on configuration authorization.
55. The apparatus according to claim 54, wherein the first information includes radio resource control-configuration uplink grant information rrc-ConfiguredUplinkGrant.
56. The apparatus according to any one of claims 29 to 54, wherein the receiving unit is configured to receive first RRC signaling sent by a network device, the first RRC signaling indicating the first information; or , Receiving the first RRC signaling sent by the second terminal, where the first RRC signaling indicates the first information.
57. A terminal, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the computer program according to any one of claims 1 to 28 method.
58. A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 28.
59. A computer-readable storage medium for storing a computer program that enables a computer to execute the method according to any one of claims 1 to 28.
60. A computer program product comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 28.
61. A computer program that causes a computer to execute the method according to any one of claims 1 to 28.

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