A power control method, device and terminal

Abstract

An embodiment of the present application provides a power control method, device, and terminal, the method comprising: a first terminal receives first information, the first information is used to determine the transmission configuration of a first physical uplink shared channel PUSCH based on a configuration authorization; the first terminal determines a power scaling factor of the first PUSCH, wherein the power scaling factor is used to determine an actual transmission power of the first PUSCH.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technology, and specifically to a power control method and device, and a terminal. Background Art

[0002] In uplink transmission, power control is required to ensure transmission quality and reduce uplink interference. Power control needs to determine the corresponding scaling factor according to different situations. For the first type of configured grant PUSCH transmission (Configured grant Type 1 PUSCH transmission), how to determine its power scaling factor needs to be clarified. Summary of the invention

[0003] Embodiments of the present application provide a power control method, device, and terminal.

[0004] The power control method provided in the embodiment of the present application includes:

[0005] The first terminal receives first information, where the first information is used to determine a transmission configuration of a first physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) based on the configuration authorization;

[0006] The first terminal determines a power scaling factor of the first PUSCH based on the first information, wherein the power scaling factor is used to determine an actual transmit power of the first PUSCH.

[0007] The power control device provided in the embodiment of the present application includes:

[0008] A receiving unit, configured to receive first information, where the first information is used to determine a transmission configuration of a first PUSCH based on a configuration grant;

[0009] A determining unit is used to determine a power scaling factor of the first PUSCH based on the first information, wherein the power scaling factor is used to determine an actual transmit power of the first PUSCH.

[0010] 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.

[0011] The chip provided in the embodiment of the present application is used to implement the above-mentioned power control method.

[0012] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned power control method.

[0013] The computer-readable storage medium provided in the embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned power control method.

[0014] The computer program product provided in the embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned power control method.

[0015] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned power control method.

[0016] Through the above technical solution, the first terminal determines the power scaling factor of the first PUSCH based on the configuration authorization based on the first information, wherein the first information is used to determine the transmission configuration of the first PUSCH based on the configuration authorization, thereby clarifying the scaling factor of the first PUSCH based on the configuration authorization, and then the power control of the first PUSCH based on the configuration authorization can be achieved based on the scaling factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a power control method according to an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of a power control device provided in an embodiment of the present application;

[0021] Figure 4 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0023] Figure 6 It is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] The technical solutions of the embodiments of the present 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 (TDD) system, 5G communication system or future communication system, etc.

[0026] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted 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.

[0027] The communication system 100 also includes at least one terminal 120 located within the coverage of the network device 110. As used herein, "terminal" includes but is not limited to connecting via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or another terminal configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal may refer to an access terminal, User Equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

[0028] Optionally, the terminals 120 may perform device-to-device (D2D) communication.

[0029] Optionally, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0030] Figure 1 One network device and two terminals are shown exemplarily. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminals within its coverage area, which is not limited in the embodiments of the present application.

[0031] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0032] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal 120 with communication functions. The network device 110 and the terminal 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0033] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] To facilitate 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.

[0035] In Rel-15, uplink (UL) multiple-input multiple-output (MIMO) transmission can be divided into three types of terminals based on whether the uplink transmission meets the coherent characteristic:

[0036] ■nonCoherent (non coherent can be used when describing a terminal and when reporting the UE capability of a terminal): The phases corresponding to any two antenna ports cannot maintain a constant relationship (for example, the difference between the two phases will change and it is difficult to remain unchanged within a certain period of time, or the amplitude of the change within a certain period of time exceeds a certain range).

[0037] ■partialCoherent (partial coherent can be used when describing a terminal and when reporting the UE capability of a terminal): All antenna ports are divided into multiple groups. The phases corresponding to the antenna ports within each group can maintain a constant relationship (for example, the difference between multiple phases remains basically unchanged for a certain period of time, or the variation amplitude is within a certain range), but the phases corresponding to antenna ports in different groups cannot maintain a constant relationship.

[0038] ■fullCoherent (full coherent can be used when describing the terminal and when reporting the UE capability of the terminal): the phases corresponding to all antenna ports can maintain a constant relationship.

[0039] The terminal can report which of the above three capabilities it supports.

[0040] ■For terminals with 2 antenna ports, the terminals can generally be of two types: nonCoherent and fullCoherent.

[0041] ■For a terminal with four antenna ports, the terminal can generally be of three types: nonCoherent, partialCoherent, and fullCoherent.

[0042] In Rel-15, NR supports codebook based UL transmission, and the network indicates the transmitted precoding matrix indicator (TPMI) through the downlink control information (DCI). It should be noted that, unless otherwise specified, the TPMI involved in the embodiments of the present application can also be described as a precoding matrix or a precoder. By selecting a suitable precoding matrix (here it is 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 corresponding to the two antenna ports of the terminal is controlled within a certain range (for the convenience of description, referred to as a constant condition), so as to ensure that the signal received by the final receiving end is a positive superposition; if the phase difference corresponding to the two antenna ports of the terminal exceeds a certain range, it is impossible to ensure at the receiving end whether the signals corresponding to the two antenna ports are orthogonal superposition or negative superposition, which affects the receiving performance of the receiving end.

[0043] If it is a non-Coherent 2-antenna port terminal, for one data stream (1 layer) transmission, the precoding matrix can be used: Therefore, there is no need to send signals from two antenna ports at the same time.

[0044] For the above reasons, in Rel-15, the uplink precoding matrix (or TPMI) is divided into different groups, that is, into different codebook subsets. The current protocol specifies the following three different codebook subsets:

[0045] ■fullyAndPartialAndNonCoherent: Can be used with the fullCoherent terminal.

[0046] ■partialAndNonCoherent: Can be used for partialCoherent terminal and fullCoherent terminal.

[0047] ■nonCoherent: Can be used for nonCoherent terminals, partialCoherent terminals, and fullCoherent terminals.

[0048] Among them, for the case of 4 antenna ports: nonCoherent is a subset of partialAndNonCoherent, and partialAndNonCoherent is a subset of fullyAndPartialAndNonCoherent.

[0049] For the 2-antenna port case: nonCoherent is a subset of fullyAndPartialAndNonCoherent.

[0050] PUSCH with Configured Grant

[0051] In NR, PUSCH can be dynamically scheduled through DCI, or through configured grant Type 1 or configured grant Type 2.

[0052] ■Configured grant Type 1 PUSCH transmission

[0053] ○Semi-statically configured by the high-level parameter configuredGrantConfig, where configuredGrantConfig includes the parameter rrc-ConfiguredUplinkGrant.

[0054] ○ No need to activate by detecting the uplink grant (UL grant) in the DCI.

[0055] Configured grant Type 2 PUSCH transmission

[0056] ○Semi-statically configured by the high-level parameter configuredGrantConfig, where configuredGrantConfig does not include the parameter rrc-ConfiguredUplinkGrant.

[0057] ○ Semi-persistent scheduling via a valid activation DCI.

[0058] Uplink transmit power issue

[0059] In order to ensure the transmission quality and reduce the uplink interference during uplink transmission, power control is required. The terminal first determines a calculated transmit power based on the network configuration information and / or the scheduling information corresponding to the uplink transmission (such as frequency domain resource allocation, TPC command, modulation mode, etc.). Then, for the calculated transmit power, there are two processing methods according to different situations:

[0060] 1. Perform power scaling, with the scaling factor s being less than or equal to 1.

[0061] 2. No power scaling is performed (equivalent to a scaling factor s of 1): For example, no power scaling is performed for 1-port UL transmission, and for another example, no power scaling is performed for non-codebook based UL transmission.

[0062] The scaling factor s is determined based on the number of non-zero ports of the transmitted PUSCH and the maximum number of ports of the SRS resources that the terminal can support (the number of non-zero ports of the PUSCH divided by the maximum number of ports of the 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 PUSCH is 1, and the maximum number of ports of SRS resources supported by the terminal 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 result in the actual maximum transmit power of a layer being transmitted being only half of the maximum transmit power of the terminal.

[0063] Rel-16 solves the above power issues

[0064] In order to solve the above-mentioned situation that non-Coherent terminals and partially Coherent terminals under Rel-15 cannot use the terminal maximum power transmission in some cases, Rel-16 studies some methods to enable these terminals to use maximum power transmission (abbreviated as full power transmission: UL full power transmission):

[0065] ■Method 1 (Mode 0): The terminal can support full-power power amplifiers (PAs), that is, a single PA can reach the maximum transmit 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: there is no need to scale the calculated transmit power.

[0066] ■Method 2 (Mode 1): For nonCoherent and partiallyCoherent terminals, one or more TPMIs that can only be used by coherent terminals can be used, such as Although the superposition effect of signals corresponding to different antenna ports cannot be guaranteed, more transmission power can be used.

[0067] ■Method 3 (abbreviated as Mode 2): For non-Coherent terminals and partially Coherent terminals, the network configures an SRS resource set (SRS resource set) for codebook based UL transmission. The number of ports of SRS resources (SRS resource) in this SRS resource set can be different. Optionally, the terminal can report which TPMI (or precoding matrix) can support full power transmission (UL full power transmission).

[0068] a) For example, for a terminal with 4 antenna ports, the network configures SRS resource for port 1, port 2, and port 4 in the SRS resource group. For the transmission of SRS resource for port 1 / port 2, the terminal can use antenna virtualization (i.e., 4 antennas are virtualized into one antenna port for transmission, or 2 antennas are virtualized into one antenna port for transmission), or it is not necessary to use antenna virtualization.

[0069] 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 (equivalently, the scaling factor is 1), but directly divide the calculated power equally to each non-zero port.

[0070] For the above methods, power scaling adopts the following different approach.

[0071] ■For method one (Mode 0), no power scaling is performed, or equivalently, the power scaling factor s is 1.

[0072] ■For method 2 (Mode 1), the power scaling factor s is determined similarly to the Rel-15 method, i.e., the scaling factor s is determined based on the number of non-zero ports of the transmitted PUSCH and the maximum number of ports of SRS resources that the terminal can support (the number of non-zero ports of PUSCH divided by the maximum number of ports of SRS resources that the terminal can support).

[0073] ■For method three (Mode 2), if the TPMI corresponding to a certain transmission is reported by the terminal to support full power transmission, no power scaling is performed, or equivalently, the power scaling factor s is 1; for other TPMIs, the power scaling factor s is determined according to the number of non-zero ports of the transmitted PUSCH.

[0074] UE capability reporting based on TPMI

[0075] For a terminal supporting Mode 2, it can report which TPMI or precoding matrix can support full-power transmission (referred to as TPMI-based UE capability reporting).

[0076] For the case of 2 antenna ports (including the case of 2 antennas and the case of 4 antennas virtualized into 2 antenna ports):

[0077] ■Indicated by a 2-bit bitmap: (Rank 1: support{TPMI=0}and{TPMI=1}).

[0078] For 4 antenna ports:

[0079] ■For non-Coherent terminals, 2 bits are used to indicate a group of precoding matrices in G0-G3 in Table 1 below (or equivalently described as a group of TPMIs, or a TPMI group).

[0080] 4Tx, nonCoherent 4Tx, partial coherent (4 bits) G0 G0 G1 G1 G2 G2 G3 G3 G4 G5 G6

[0081] The contents of Table 1G0, ..., G6 can refer to the following Table 2 (assuming that the terminal power level corresponds to 23dBm).

[0082]

[0083] Table 2

[0084] Currently, method three (Mode 2) cannot well support the full-power transmission of the PUSCH transmission authorized by the first type of configuration. In response to this situation, the following technical solution of the embodiment of the present application is proposed. The technical solution of the embodiment of the present application aims to propose a corresponding full-power transmission scheme for the PUSCH transmission authorized by the first type of configuration, so that it can also more effectively utilize the transmission power, increase the coverage of PUSCH, and improve the system performance.

[0085] Figure 2 A schematic diagram of a power control method according to an embodiment of the present invention is shown in FIG. Figure 2 As shown, the power control method comprises the following steps:

[0086] Step 201: A first terminal receives first information, where the first information is used to determine a transmission configuration of a first PUSCH based on a configuration authorization.

[0087] In the embodiment of the present application, the first terminal may receive the first information in the following manner:

[0088] 1) The first terminal receives first RRC signaling sent by a network device, where the first RRC signaling indicates the first information.

[0089] Here, the first information is transmitted via a first RRC signaling, and the first RRC signaling is sent from the network device to the first terminal.

[0090] 2) The first terminal receives first RRC signaling sent by the second terminal, where the first RRC signaling indicates the first information.

[0091] Here, the first information is transmitted via a first RRC signaling, and the first RRC signaling is sent from the second terminal to the first terminal. This method is applicable to scenarios of V2X communication, D2D communication, or sidelink communication, and can better support communication between terminals.

[0092] In the embodiment of the present application, the first information is used to determine the transmission configuration of the first PUSCH based on the configuration authorization. Accordingly, the first terminal can transmit the first PUSCH based on the configuration authorization based on the first information.

[0093] Further, optionally, the first information is: configuration information based on configuration authorization (configuredGrantConfig). Here, configuredGrantConfig is a high-level parameter.

[0094] 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 configured grant PUSCH transmission (Configured grant Type 1 PUSCH transmission).

[0095] Further, optionally, the first information includes first indication information, and the first indication information is used to indicate a first SRS resource. Further, optionally, the first indication information is SRS resource indication information (srs-ResourceIndicator).

[0096] In specific implementation, configuredGrantConfig includes the parameter rrc-ConfiguredUplinkGrant, and rrc-ConfiguredUplinkGrant includes the parameter srs-ResourceIndicator.

[0097] ● In an optional manner of the present application, the first terminal receives second information, and the second information is used to instruct the first terminal to adopt uplink full-power transmission mode 2. Here, uplink full-power transmission mode 2 can refer to the above description related to method three (Mode 2). It should be noted that the embodiment of the present application does not limit the name of "uplink full-power transmission mode 2", and "uplink full-power transmission mode 2" can also be described by other names, such as "mode2".

[0098] In the embodiment of the present application, the first terminal may receive the second information in the following manner:

[0099] 1) The first terminal receives second RRC signaling sent by a network device, where the second RRC signaling indicates the second information.

[0100] Here, the second information is transmitted via second RRC signaling, and the second RRC signaling is sent from the network device to the first terminal.

[0101] 2) The first terminal receives second RRC signaling sent by the second terminal, where the second RRC signaling indicates the second information.

[0102] Here, the second information is transmitted via a second RRC signaling, and the second RRC signaling is sent from the second terminal to the first terminal. This method is applicable to scenarios of V2X communication, D2D communication, or sidelink communication, and can better support communication between terminals.

[0103] Further, optionally, the first terminal reports a first UE capability, where the first UE capability is used to indicate that the first terminal supports uplink full-power transmission mode 2 (ie, Mode 2).

[0104] Here, the first terminal may report the first UE capability in the following manner:

[0105] 1) The first terminal reports the first UE capability to a network device. Further, optionally, the first UE capability is forwarded by the network device to the second terminal. Or,

[0106] 2) The first terminal reports the first UE capability to the second terminal. This method is applicable to scenarios of V2X communication, D2D communication, or sidelink communication, and can better support communication between terminals.

[0107] Further, optionally, the first UE capability is also used to indicate a TPMI group or TPMI that supports uplink full-power transmission.

[0108] Here, for a terminal supporting Mode 2, in addition to reporting its ability to support Mode 2, it can also report a TPMI group or TPMI supporting uplink full power transmission. It should be noted that TPMI can also be described as a precoding matrix or precoding.

[0109] Further, optionally, 1) the TPMI group or TPMI is indicated by a bit map; or, 2) the TPMI group or TPMI is indicated by N bits, N is a positive integer; or, 3) the first subset of the TPMI group or TPMI is indicated by a bit map, and the second subset of the TPMI group or TPMI is indicated by N bits, N is a positive integer.

[0110] 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 applies to the case where the terminal reports the TPMI group or TPMI for 2 antenna ports. 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 uplink full-power transmission is supported, and a value of 0 indicates that uplink full-power transmission is not supported.

[0111] 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 case where the terminal reports the TPMI group or TPMI for 4 antenna ports. Here, different values ​​of the 4 bits correspond to different TPMI groups or TPMIs, and a TPMI group or TPMI can be determined according to the values ​​of the 4 bits, and the determined TPMI group or TPMI supports uplink full power transmission.

[0112] For example, if the first subset of the TPMI group or TPMI corresponds to 2 antenna ports, and the second subset of the TPMI group or TPMI corresponds to 4 antenna ports, the first subset of the TPMI group or TPMI is indicated by a 2-bit bitmap, and the second subset of the TPMI group or TPMI is indicated by a 4-bit bitmap. This situation is applicable to the case where the terminal reports the TPMI group or TPMI for both 2 antenna ports and 4 antenna ports at the same time.

[0113] ●In an optional manner of the present application, the first terminal receives third information, the third information is used to determine an SRS resource group, and a usage parameter (usage) corresponding to the SRS resource group is set to a codebook; wherein the SRS resource group includes at least 2 SRS resources.

[0114] In the embodiment of the present application, the first terminal may receive the third information in the following manner:

[0115] 1) The first terminal receives a third RRC signaling sent by a network device, where the third RRC signaling indicates the third information.

[0116] Here, the third information is transmitted via a third RRC signaling, and the third RRC signaling is sent from the network device to the first terminal.

[0117] 2) The first terminal receives third RRC signaling sent by the second terminal, where the third RRC signaling indicates the third information.

[0118] Here, the third information is transmitted via a 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 sidelink communication, and can better support communication between terminals.

[0119] Further, optionally, at least some of the SRS resources in the SRS resource group correspond to different numbers of ports.

[0120] For example: among 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.

[0121] Further, optionally, the number of SRS resources in the SRS resource group is at most 2 or 4.

[0122] Further, optionally, the maximum number of SRS resources in the SRS resource group may be determined in the following manner:

[0123] 1) The first terminal reports 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 at most 2. In this case, the maximum number of SRS resources in the SRS resource group is 2. The first terminal reports 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 at most 4. In this case, the maximum number of SRS resources in the SRS resource group is 4.

[0124] 2) When the first terminal reports the second UE capability, the number of SRS resources in the SRS resource group is at most 4; or, when the first terminal does not report the second UE capability, the number of SRS resources in the SRS resource group is at most 2; 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 4.

[0125] Here, the first terminal may report the second UE capability in the following manner:

[0126] 1) The first terminal reports the second UE capability to a network device. Further, optionally, the second UE capability is forwarded by the network device to the second terminal. Or,

[0127] 2) The first terminal reports the second UE capability to the second terminal. This method is applicable to scenarios of V2X communication, D2D communication, or routine link communication, and can better support communication between terminals.

[0128] Further, optionally, all SRS resources in the SRS resource group correspond to M different spatial relation information, where M is a positive integer less than or equal to 2. Here, in the SRS resource group, one SRS resource corresponds to one spatial relation information, and all SRS resources in the SRS resource group correspond to no more than 2 different spatial relation information. It should be noted that the spatial relation information has a corresponding relationship with the beam.

[0129] Step 202: The first terminal determines a power scaling factor of the first PUSCH based on the first information, wherein the power scaling factor is used to determine an actual transmission power of the first PUSCH.

[0130] In the embodiment of the present application, when the first terminal transmits the first PUSCH, the actual transmit power corresponding to the first PUSCH is determined according to the corresponding power scaling factor, and the first PUSCH is transmitted according to the actual transmit power.

[0131] In the embodiment of the present application, the first terminal determines the power scaling factor of the first PUSCH in the following manner:

[0132] Mode 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 equivalently, no power scaling is required for the first PUSCH). The TPMI corresponding to the first PUSCH is determined according to the first information.

[0133] Here, the TPMI indicated in the first UE capability is the TPMI supporting uplink full power transmission. When the terminal uses the TPMI supporting uplink full power transmission, power scaling is not required, that is, the scaling factor is 1, thereby increasing coverage and improving transmission performance.

[0134] Method 2: 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 determines the power scaling factor of the first PUSCH based on the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource, wherein the TPMI corresponding to the first PUSCH and the first SRS resource are determined based on the first information.

[0135] 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 scheme of 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, configuredGrantConfig (i.e., the first information) includes the parameter rrc-ConfiguredUplinkGrant, and rrc-ConfiguredUplinkGrant includes the parameter srs-ResourceIndicator (i.e., the first indication information).

[0136] Through the above-mentioned technical scheme of the embodiment of the present application, the first type of configured 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, power scaling is not required, that is, the scaling factor is 1, thereby increasing the coverage of the first PUSCH and improving the transmission performance of the first PUSCH.

[0137] Figure 3 A schematic diagram of the structure of a power control device provided in an embodiment of the present application is applied to a first terminal, such as Figure 3 As shown, the power control device comprises:

[0138] The receiving unit 301 is configured to receive first information, where the first information is used to determine a transmission configuration of a first PUSCH based on a configuration grant;

[0139] The determining unit 302 is configured to determine a power scaling factor of the first PUSCH according to the first information, wherein the power scaling factor is used to determine an actual transmit power of the first PUSCH.

[0140] In one implementation, the receiving unit 301 is further configured to receive second information, where the second information is configured to instruct the first terminal to adopt uplink full-power transmission mode 2.

[0141] In one embodiment, the device further comprises:

[0142] The reporting unit 303 is used 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.

[0143] In one implementation, the first UE capability is further used to indicate a TPMI group or TPMI supporting uplink full-power transmission.

[0144] In one embodiment, the TPMI group or TPMI is indicated by a bitmap; or,

[0145] The TPMI group or TPMI is indicated by N bits, where N is a positive integer; or

[0146] 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.

[0147] In one 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,

[0148] If the TPMI group or TPMI corresponds to 4 antenna ports, the TPMI group or TPMI is indicated by 4 bits; or,

[0149] If the first subset of the TPMI group or TPMI corresponds to 2 antenna ports and the second subset of the TPMI group or TPMI corresponds to 4 antenna ports, the first subset of the TPMI group or TPMI is indicated by a 2-bit bitmap and the second subset of the TPMI group or TPMI is indicated by 4 bits.

[0150] In one implementation, the reporting unit 303 is configured to report the first UE capability to a network device.

[0151] In one implementation, the first UE capability is forwarded by the network device to the second terminal.

[0152] In one implementation, the reporting unit 303 is configured to report the first UE capability to the second terminal.

[0153] In one embodiment, the receiving unit 301 is used to receive a second RRC signaling sent by a network device, where the second RRC signaling indicates the second information; or receive a second RRC signaling sent by a second terminal, where the second RRC signaling indicates the second information.

[0154] In one embodiment, the receiving unit 301 is further used to receive third information, where the third information is used to determine an SRS resource group, and a usage parameter corresponding to the SRS resource group is set to a codebook; wherein the SRS resource group includes at least 2 SRS resources.

[0155] In one implementation, at least some of the SRS resources in the SRS resource group correspond to different numbers of ports.

[0156] In one implementation, the number of SRS resources in the SRS resource group is at most 2 or 4.

[0157] In one embodiment, the device further comprises:

[0158] The reporting unit 303 is used to report the second UE capability, where the second UE capability is used to indicate that the number of SRS resources supported by the first terminal is at most 2 or 4.

[0159] In one implementation, the device further includes: a reporting unit 303;

[0160] When the reporting unit 303 reports the second UE capability, the number of SRS resources in the SRS resource group is at most 4; or,

[0161] When the reporting unit 303 does not report the second UE capability, the number of SRS resources in the SRS resource group is at most 2;

[0162] The second UE capability is used to indicate that the number of SRS resources among the SRS resources supported by the first terminal is at most 4.

[0163] In one implementation, the reporting unit 303 is configured to report the second UE capability to a network device.

[0164] In one implementation, the second UE capability is forwarded by the network device to the second terminal.

[0165] In one implementation, the reporting unit 303 is configured to report the second UE capability to the second terminal.

[0166] In one implementation, all SRS resources in the SRS resource group correspond to M different spatial relationship information, where M is a positive integer less than or equal to 2.

[0167] In one embodiment, the receiving unit 301 is used to receive a third RRC signaling sent by a network device, where the third RRC signaling indicates the third information; or, to receive a third RRC signaling sent by a second terminal, where the third RRC signaling indicates the third information.

[0168] In one embodiment, the determining unit 302 is used to determine that the power scaling factor of the first PUSCH is 1 if the TPMI corresponding to the first PUSCH is the TPMI indicated by the first terminal in the first UE capability, wherein the TPMI corresponding to the first PUSCH is determined according to the first information.

[0169] In one embodiment, the determination unit 302 is used to determine the power scaling factor of the first PUSCH according to the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource if the TPMI corresponding to the first PUSCH is not the TPMI indicated by the first terminal in the first UE capability, wherein the TPMI corresponding to the first PUSCH and the first SRS resource are determined based on the first information.

[0170] In one 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.

[0171] In one implementation, the first information includes first indication information, where the first indication information is used to indicate the first SRS resource.

[0172] In one implementation, the first indication information is SRS resource indication information srs-ResourceIndicator.

[0173] In one implementation, the first information is: configuration information configuredGrantConfig based on configuration authorization.

[0174] In one implementation, the first information includes radio resource control-configured uplink grant information rrc-ConfiguredUplinkGrant.

[0175] In one implementation, the receiving unit 301 is configured to receive a first RRC signaling sent by a network device, where the first RRC signaling indicates the first information; or receive a first RRC signaling sent by a second terminal, where the first RRC signaling indicates the first information.

[0176] Those skilled in the art should understand that the relevant description of the above-mentioned power control device in the embodiment of the present application can be understood by referring to the relevant description of the power control method in the embodiment of the present application.

[0177] Figure 4 400 is a schematic structural diagram of a communication device 400 provided in an embodiment of the present application. The communication device may be a terminal or a network device. Figure 4The communication device 400 shown includes a processor 410, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0178] Alternatively, if Figure 4 As shown, 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.

[0179] The memory 420 may be a separate device independent of the processor 410 , or may be integrated into the processor 410 .

[0180] Alternatively, if Figure 4 As shown, 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, may send information or data to other devices, or receive information or data sent by other devices.

[0181] The transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include an antenna, and the number of the antennas may be one or more.

[0182] Optionally, the communication device 400 may specifically be a network device of an embodiment of the present application, and the communication device 400 may implement corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0183] Optionally, the communication device 400 may specifically be a mobile terminal / terminal of an embodiment of the present application, and the communication device 400 may implement the corresponding processes implemented by the mobile terminal / terminal in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0184] Figure 5 It is a schematic structural diagram of the chip of an embodiment of the present application. Figure 5 The chip 500 shown includes a processor 510, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0185] Alternatively, if Figure 5 As shown, 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.

[0186] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .

[0187] Optionally, the chip 500 may further include an input interface 530. The processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0188] Optionally, the chip 500 may further include an output interface 540. The processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0189] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0190] Optionally, the chip can be applied to the mobile terminal / terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0191] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0192] Figure 6 600 is a schematic block diagram of a communication system 600 provided in an embodiment of the present application. Figure 6 As shown, the communication system 600 includes a terminal 610 and a network device 620 .

[0193] Among them, the terminal 610 can be used to implement the corresponding functions implemented by the terminal in the above method, and the network device 620 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0194] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. 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.

[0195] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0196] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments 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 link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0197] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0198] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0199] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0200] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0201] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0202] Optionally, the computer program product can be applied to the mobile terminal / terminal in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0203] The embodiment of the present application also provides a computer program.

[0204] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0205] 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 executes the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0206] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0207] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0208] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0209] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0210] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0211] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0212] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A power control method, the method comprising: The first terminal receives first information, where the first information is used to determine a transmission configuration of a first physical uplink shared channel PUSCH based on a configuration authorization; wherein the first information is: configuration information based on the configuration authorization configuredGrantConfig ; The first information includes radio resource control-configuration uplink authorization information rrc- ConfiguredUplinkGrant ; The first terminal determines a power scaling factor of the first PUSCH based on the first information, wherein the power scaling factor is used to determine an actual transmit power of the first PUSCH; The first terminal determines, based on the first information, a power scaling factor of the first PUSCH, including: 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 TPMI corresponding to the first PUSCH is determined according to the first information.

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 adopt 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, where 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 also used to indicate a transmission precoding indication TPMI group or TPMI supporting uplink full-power transmission.

5. The method according to 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 according to 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 of the TPMI group or TPMI corresponds to 2 antenna ports and the second subset of the TPMI group or TPMI corresponds to 4 antenna ports, the first subset of the TPMI group or TPMI is indicated by a 2-bit bitmap and the second subset of the TPMI group or TPMI is indicated by 4 bits.

7. The method according to any one of claims 3 to 6, wherein: The first terminal reporting the first UE capability includes: The first terminal reports the first UE capability to a 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 first terminal reporting the first UE capability includes: 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 receives the second information, including: The first terminal receives a second RRC signaling sent by a network device, where the second RRC signaling indicates the second information; or, The first terminal receives second RRC signaling sent by the second terminal, where 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, where the third information is used to determine a sounding reference signal SRS resource group, where a usage parameter corresponding to the SRS resource group is set to a codebook codebook; wherein the SRS resource group includes at least 2 SRS resources.

12. The method according to claim 11, wherein: At least some of the SRS resources in the SRS resource group correspond to different numbers of ports.

13. The method according to claim 11 or 12, wherein: The number of SRS resources in the SRS resource group is at most 2 or 4.

14. The method according to claim 13, wherein: The method further comprises: The first terminal reports 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 at most 2 or 4.

15. The method according to claim 13, wherein: The method further comprises: When the first terminal reports the second UE capability, the number of SRS resources in the SRS resource group is at most 4; or, When the first terminal does not report the second UE capability, the number of SRS resources in the SRS resource group is at most 2; The second UE capability is used to indicate that the number of SRS resources among the SRS resources supported by the first terminal is at most 4.

16. The method according to claim 14 or 15, wherein: The first terminal reporting the second UE capability includes: The first terminal reports the second UE capability to a 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 first terminal reporting the second UE capability 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, where 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 receives third information, including: The first terminal receives a third RRC signaling sent by a 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 determines, based on the first information, a power scaling factor of the first PUSCH, including: 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 determines the power scaling factor of the first PUSCH based on the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource, wherein the TPMI corresponding to the first PUSCH and the first SRS resource are determined based on the first information.

22. The method according to claim 21, 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.

23. The method according to claim 21 or 22, wherein: The first information includes first indication information, where the first indication information is used to indicate the first SRS resource.

24. The method according to claim 23, wherein: The first indication information is SRS resource indication information srs- ResourceIndicator .

25. The method according to any one of claims 1 to 24, wherein: The first terminal receives first information, including: The first terminal receives a first RRC signaling sent by a network device, where the first RRC signaling indicates the first information; or, The first terminal receives first RRC signaling sent by the second terminal, where the first RRC signaling indicates the first information.

26. A power control device, the device comprising: A receiving unit, configured to receive first information, wherein the first information is used to determine a transmission configuration of a first PUSCH based on a configuration authorization; wherein the first information is: configuration information based on the configuration authorization configuredGrantConfig ; The first information includes radio resource control-configuration uplink authorization information rrc-ConfiguredUplinkGrant ; a determining unit, configured to determine a power scaling factor of the first PUSCH based on the first information, wherein the power scaling factor is used to determine an actual transmit power of the first PUSCH; The determining unit is configured to determine that the power scaling factor of the first PUSCH is 1 if the TPMI corresponding to the first PUSCH is the TPMI indicated by the device in the first UE capability, and the TPMI corresponding to the first PUSCH is determined according to the first information.

27. The device according to claim 26, wherein: The receiving unit is further used to receive second information, where the second information is used to instruct the device to adopt uplink full-power transmission mode 2.

28. The device according to claim 27, wherein The device also includes: A reporting unit is used to report a first UE capability, where the first UE capability is used to indicate that the device supports uplink full-power transmission mode 2.

29. The device according to claim 28, wherein The first UE capability is also used to indicate a TPMI group or TPMI that supports uplink full-power transmission.

30. The device according to claim 29, 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.

31. The device according to claim 30, 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 of the TPMI group or TPMI corresponds to 2 antenna ports and the second subset of the TPMI group or TPMI corresponds to 4 antenna ports, the first subset of the TPMI group or TPMI is indicated by a 2-bit bitmap and the second subset of the TPMI group or TPMI is indicated by 4 bits.

32. The device according to any one of claims 28 to 31, wherein: The reporting unit is used to report the first UE capability to the network device.

33. The device according to claim 32, wherein: The first UE capability is forwarded by the network device to the second terminal.

34. The device according to any one of claims 28 to 31, wherein: The reporting unit is used to report the first UE capability to the second terminal.

35. The device according to any one of claims 27 to 34, wherein: The receiving unit is configured to receive a second RRC signaling sent by a network device, where the second RRC signaling indicates the second information; or to receive a second RRC signaling sent by a second terminal, where the second RRC signaling indicates the second information.

36. The device according to any one of claims 26 to 35, wherein: The receiving unit is further used to receive third information, where the third information is used to determine an SRS resource group, and a usage parameter corresponding to the SRS resource group is set to a codebook codebook; wherein the SRS resource group includes at least 2 SRS resources.

37. The device according to claim 36, wherein At least some of the SRS resources in the SRS resource group correspond to different numbers of ports.

38. The device according to claim 36 or 37, wherein: The number of SRS resources in the SRS resource group is at most 2 or 4.

39. The device according to claim 38, wherein The device also includes: A reporting unit is used to report the second UE capability, where the second UE capability is used to indicate that the number of SRS resources supported by the device is at most 2 or 4.

40. The apparatus of claim 38, wherein: The device further comprises: a reporting unit; When the reporting unit reports the second UE capability, the number of SRS resources in the SRS resource group is at most 4; or, When the reporting unit does not report the second UE capability, the number of SRS resources in the SRS resource group is at most 2; The second UE capability is used to indicate that the number of SRS resources among the SRS resources supported by the device is at most 4.

41. The device according to claim 39 or 40, wherein: The reporting unit is used to report the second UE capability to the network device.

42. The device according to claim 41, wherein The second UE capability is forwarded by the network device to the second terminal.

43. The device according to claim 39 or 40, wherein: The reporting unit is used to report the second UE capability to the second terminal.

44. The device according to any one of claims 36 to 43, wherein: All SRS resources in the SRS resource group correspond to M different spatial relationship information, where M is a positive integer less than or equal to 2.

45. The device according to any one of claims 36 to 44, wherein: The receiving unit is used to receive a third RRC signaling sent by a network device, where the third RRC signaling indicates the third information; or, to receive a third RRC signaling sent by a second terminal, where the third RRC signaling indicates the third information.

46. ​​The device according to any one of claims 26 to 45, wherein: The determination unit is used to determine the power scaling factor of the first PUSCH according to the number of non-zero ports of the first PUSCH and the number of ports of the first SRS resource if the TPMI corresponding to the first PUSCH is not the TPMI indicated by the device in the first UE capability, wherein the TPMI corresponding to the first PUSCH and the first SRS resource are determined based on the first information.

47. The device according to claim 46, 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.

48. The device according to claim 46 or 47, wherein The first information includes first indication information, where the first indication information is used to indicate the first SRS resource.

49. The apparatus of claim 26, wherein: The first information includes radio resource control-configuration uplink authorization information rrc-ConfiguredUplinkGrant .

50. The device according to any one of claims 26 to 49, wherein: The receiving unit is configured to receive a first RRC signaling sent by a network device, wherein the first RRC signaling indicates the first information; or receive a first RRC signaling sent by a second terminal, wherein the first RRC signaling indicates the first information.

51. A terminal, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 1 to 25.

52. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 25.

53. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 25.

54. A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 25.

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