WO2021120035A1

WO2021120035A1 - Uplink power control method and apparatus

Info

Publication number: WO2021120035A1
Application number: PCT/CN2019/126173
Authority: WO
Inventors: 余健; 郭志恒
Original assignee: 华为技术有限公司
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2021-06-24

Abstract

Provided are an uplink power control method and apparatus. The method comprises: a first terminal device receiving first indication information from a first network device, wherein the first indication information is used for indicating a first transmitting power; the first terminal device receiving second indication information from the first network device, wherein the second indication information is used for indicating an adjustment value of a transmitting power corresponding to a first resource block group, and the first resource block group comprises at least one resource block (RB), and the adjustment value is an offset value between the first transmitting power and a second transmitting power; the first terminal device determining the second transmitting power according to the first transmitting power and the adjustment value; and the first terminal device sending, by using the second transmitting power, a signal on the first resource block group. In the uplink power control method provided in the present application, a transmitting power of a physical uplink shared channel is controlled and indicated by taking a resource block group or resource block as a granularity, so that efficient and rational power distribution can be ensured and the overall performance of a system is improved.

Description

Method and device for uplink power control

Technical field

This application relates to the field of communications, and in particular, to a method and device for uplink power control.

Background technique

In a wireless communication system, according to the different types of sending nodes and receiving nodes, communication can be divided into different types. Generally, sending information from a network device to a terminal device is called downlink (DL) communication, and sending information from a terminal device to a network device is called uplink (UL) communication. In the fifth generation (5G) wireless communication system-new radio access technology (NR) system uplink communication, the network equipment gNB (g Node B, 5G base station) can be adjusted through the uplink power control Transmit power of dedicated demodulation reference signal (DM-RS), physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), etc. to improve the uplink communication chain Road performance.

The traditional uplink power control method is a power control method based on full bandwidth. However, the use of this power control method will cause greater interference between terminal devices in different cells, making it impossible to communicate normally between terminal devices or the transmission rate cannot meet the quality of service (QoS) requirements of the service.

Summary of the invention

This application provides a method and device for uplink power control to improve the flexibility of power allocation.

In a first aspect, a method for uplink power control is provided, including: a first terminal device receives first indication information from a first network device, where the first indication information is used to indicate a first transmit power; the first terminal device Receiving second indication information from the first network device, where the second indication information is used to indicate the adjustment value of the transmission power corresponding to the first resource block group, where the first resource block group includes at least one resource block RB, and The adjustment value is the offset value between the first transmission power and the second transmission power; the first terminal device determines the second transmission power according to the first transmission power and the adjustment value; the first terminal device uses the The second transmission power sends a signal on the first resource block group.

It should be understood that the second indication information may be used to indicate the adjustment value of the transmission power corresponding to a first resource block group, and may also be used to indicate the adjustment value of the transmission power corresponding to the N first resource block groups, where N is greater than or A positive integer equal to 2.

It should be understood that the second indication information is carried by at least one of the following signaling: DCI signaling, MAC signaling, or RRC signaling.

The uplink power control method provided by the embodiment of the present application uses resource block groups or resource blocks as the granularity to perform power control instructions. This method can flexibly allocate physical uplink shared channel transmission power to terminal devices, thereby ensuring efficient and reasonable power Allocate to improve the overall performance of the system.

With reference to the first aspect, in some implementations of the first aspect, the adjustment value is determined according to the first channel quality information corresponding to the first resource block group, and the first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal device corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes a maximum capacity criterion And maximizing the signal-leakage-to-noise ratio criterion, the third transmission power is equal to the second transmission power.

With reference to the first aspect, in some implementations of the first aspect, the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, which corresponds to when the first terminal device and the second terminal device corresponding to the first resource block group meet the first power allocation criterion The first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device uses the first resource block group to transmit Signal terminal equipment.

With reference to the first aspect, in some implementation manners of the first aspect, the channel quality information of the second terminal device includes the transmit power of the second terminal device.

With reference to the first aspect, in some implementations of the first aspect, the second terminal device and the first terminal device access the same cell, or the second terminal device and the first terminal device access different cells.

Based on the above technical solution, the power control instruction is performed at the granularity of resource block groups or resource blocks, which can determine the power allocation of different terminal devices on the same scheduling resource, and can effectively suppress the uplink communication process within and between cells The interference that exists in.

With reference to the first aspect, in some implementation manners of the first aspect, the second terminal device is determined from at least one reference terminal device according to the first scheduling resource information allocated by the first network device.

With reference to the first aspect, in some implementations of the first aspect, the first network device obtains second scheduling resource information allocated by the second network device; according to the first scheduling resource information and the second scheduling resource information, The second terminal device is determined from the at least one reference terminal device.

With reference to the first aspect, in some implementations of the first aspect, the reference terminal device includes a terminal device located in a cell accessed by the first terminal device, and/or the reference terminal device includes a terminal device located in the first terminal device The terminal equipment of the neighboring cell of the accessed cell.

With reference to the first aspect, in some implementations of the first aspect, when the reference terminal device includes a terminal device located in a neighboring cell of the cell accessed by the first terminal device, the method further includes: the first network The device receives third indication information from a third network device, the third indication information includes the temporary wireless network identifier of the reference terminal device, and the third network device includes the network of the neighboring cell of the cell accessed by the first terminal device equipment.

In a second aspect, a method for uplink power control is provided, including: a first network device sends first indication information to a first terminal device, where the first indication information is used to indicate a first transmit power; and the first network device sends The first terminal device sends second indication information, where the second indication information is used to indicate the adjustment value of the transmit power corresponding to the first resource block group, where the first resource block group includes at least one resource block RB, and the adjustment The value is the offset value between the first transmission power and the second transmission power.

It should be understood that the second indication information may be used to indicate the adjustment value of the transmission power corresponding to one first resource block group, and may also be used to indicate the adjustment value of the transmission power corresponding to multiple first resource block groups.

The uplink power control method provided by the embodiment of the present application uses resource block groups or resource blocks as the granularity to perform power control instructions. This method can flexibly allocate the physical uplink shared channel transmission power to the target terminal device, thereby ensuring efficient and reasonable Power distribution improves the overall performance of the system.

With reference to the second aspect, in some implementations of the second aspect, the adjustment value is determined according to the first channel quality information corresponding to the first resource block group, and the first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal device corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes a maximum capacity criterion And maximizing the signal-leakage-to-noise ratio criterion, the third transmission power is equal to the second transmission power.

With reference to the second aspect, in some implementations of the second aspect, the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, which corresponds to when the first terminal device and the second terminal device corresponding to the first resource block group meet the first power allocation criterion The first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device uses the first resource block group to transmit Signal terminal equipment.

With reference to the second aspect, in some implementation manners of the second aspect, the channel quality information of the second terminal device includes the transmit power of the second terminal device.

With reference to the second aspect, in some implementations of the second aspect, the second terminal device and the first terminal device access the same cell, or the second terminal device and the first terminal device access different cells.

With reference to the second aspect, in some implementation manners of the second aspect, the second terminal device is determined from at least one reference terminal device according to the first scheduling resource information allocated by the first network device.

With reference to the second aspect, in some implementations of the second aspect, the reference terminal device includes a terminal device located in a cell accessed by the first terminal device, and/or the reference terminal device includes a terminal device located in the first terminal device The terminal equipment of the neighboring cell of the accessed cell.

With reference to the second aspect, in some implementations of the second aspect, when the reference terminal device includes a terminal device located in a neighboring cell of the cell accessed by the first terminal device, the method further includes: the first network The device receives third indication information from a third network device, the third indication information includes the temporary wireless network identifier of the reference terminal device, and the third network device includes the network of the neighboring cell of the cell accessed by the first terminal device equipment.

In a third aspect, a terminal device is provided, which is used to execute the first aspect or the method in any possible implementation manner of the first aspect. Optionally, the terminal device includes a unit for executing the first aspect or the method in any possible implementation manner of the first aspect.

In a fourth aspect, a network device is provided for executing the second aspect or the method in any possible implementation manner of the second aspect. Optionally, the network device includes a unit for executing the second aspect or the method in any possible implementation manner of the second aspect.

In a fifth aspect, a device is provided, which includes a memory and a processor,

The memory is used to store instructions, and the processor is used to read instructions stored in the memory, so that the device executes the foregoing first aspect and the method in any possible implementation manner of the first aspect.

In a sixth aspect, a device is provided. The device includes a memory and a processor, the memory is configured to store instructions, and the processor is configured to read the instructions stored in the memory, so that the device executes the second aspect and the second aspect described above. Any possible implementation of the method.

Optionally, there are one or more processors, and one or more memories.

Optionally, the memory and the processor are integrated together, or the memory and the processor are provided separately.

In the specific implementation process, the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.

The seventh aspect provides a computer-readable storage medium for storing a computer program. The computer program includes any one of the first aspect and/or the second aspect and the first aspect and/or the second aspect. The instructions for the methods in the possible implementations.

In an eighth aspect, a computer program product containing instructions is provided, which, when run on a computer, enables the computer to execute the first aspect and/or the second aspect and any of the foregoing first and/or second aspects. The method in the implementation.

In a ninth aspect, a chip is provided, including at least one processor and an interface; the at least one processor is configured to call and run a computer program, so that the chip executes the first aspect and/or the second aspect. Aspects and methods in any possible implementation of the above-mentioned first aspect and/or second aspect.

Description of the drawings

FIG. 1 is a schematic diagram of the architecture of a wireless communication system applicable to an embodiment of the present application;

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

FIG. 3 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 8 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application;

FIG. 9 is a schematic block diagram of a terminal device provided by an embodiment of the present application;

FIG. 10 is a schematic block diagram of a network device provided by an embodiment of the present application;

FIG. 11 is a schematic block diagram of a terminal device provided by an embodiment of the present application;

FIG. 12 is a schematic block diagram of a network device provided by an embodiment of the present application.

Detailed ways

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

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), universal mobile telecommunication system (UMTS), new radio (new radio, NR) systems and other fifth generation (5G) systems, satellite communication systems, and other future evolving communication systems, etc. .

In the embodiment of the present application, the network device is used to receive an uplink signal from a terminal device or send a downlink signal to the terminal device. The network device can be any device with a wireless transceiver function. Network equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), home base station (for example, home evolved Node B, Or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission Point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be the gNB or transmission point (TRP or TP) in the 5G (such as NR) system, or the base station in the 5G system One or a group of (including multiple antenna panels) antenna panels, or, may also be a network node constituting a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU).

In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) The function of the layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (physical, PHY) layer. AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.

It should be noted that the CU can be divided into an access network device or a core network (core network, CN) device, which is not limited in this application. In the embodiments of the present application, for ease of understanding and description, the CU is divided into access network equipment.

The network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment. The cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.), and may also belong to a base station corresponding to a small cell (small cell). The small cells here may include: metro cells, micro cells, pico cells, femto cells, and so on. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

In the embodiment of the present application, the terminal device is used to send an uplink signal to the network device or receive a downlink signal from the network device. Terminal equipment can also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user Agent or user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local Loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistants, PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, 5G Terminal equipment in the network, terminal equipment in a non-public network, etc.

Among them, wearable devices can also be called wearable smart devices, which are the general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets and smart jewelry for physical sign monitoring.

In addition, the terminal device may also be a terminal device in an Internet of Things (IoT) system. IoT is an important part of the development of information technology in the future. Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things. This application does not limit the specific form of the terminal device.

Figure 1 shows a schematic diagram of the architecture of a wireless communication system suitable for embodiments of the present application. The wireless communication system 100 may at least include a network device 110, a first terminal device 120, and a second terminal device 130. The network device 110 may communicate with the first terminal device 120 or the second terminal device 130 through a wireless air interface. The network device 110 may send downlink data to the first terminal device 120 or the second terminal device 130, and at the same time, the first terminal device 120 or the second terminal device 130 may also send uplink data to the network device 110.

It should be understood that FIG. 1 is only for ease of understanding, and schematically shows the network device 110, the first terminal device 120, and the second terminal device 130, but this should not constitute any limitation to the present application. For example, the wireless communication system applicable to the embodiments of the present application may also include multiple network devices and multiple terminal devices, which is not limited in this application.

It should be understood that the architecture of the wireless communication system applicable to the embodiments of the present application is not specifically limited, as long as the communication system includes an uplink communication link and a downlink communication link.

In order to facilitate the understanding of the embodiments of the present application, first, a brief description of the terms involved in the present application will be given.

Transmission time interval (TTI): refers to data compression from a higher layer to a frame for transmission in a radio link layer. TTI is related to the size of the data block from the higher network layer to the wireless link layer. In the 3GPP LTE and LTE-A standards, it is generally considered that 1TTI=1ms. In the 3GPP NR standard, one TTI can be 0.25 ms, one TTI can also be 0.5 ms, and one TTI can also be 1 ms. TTIs are related to specific subcarrier intervals.

Resource block (resource block, RB): A resource block composed of 12 consecutive subcarriers in the frequency domain.

Resource block group (RBG): RBG consists of different numbers of consecutive RBs. The number of RBs included in the RBG is also different according to the bandwidth part size (BWP) of the system bandwidth. The relationship between the RBG size and the BWP is shown in Table 1 below.

Table I

BWPBWP	配置1Configuration 1	配置2Configuration 2
1～361～36	22	44
37～7237～72	44	88
73～14473～144	88	1616
145～275145～275	1616	1616

Signal to interference plus noise ratio (SINR): the signal to interference plus noise ratio, which refers to the ratio of the strength of the received useful signal to the strength of the received interference signal (noise and interference). Simply understood as "signal-to-noise ratio."

Cell-radio network temporary identifier (C-RNTI): is a dynamic identifier assigned to terminal equipment by network equipment. The C-RNTI uniquely identifies the terminal equipment under the air interface of a cell, and the C-RNTI is valid only when the terminal equipment is in the connected state.

Before describing in detail the power control method of the embodiment of the present application, the related prior art is first introduced.

According to the prior art, assuming the terminal device serving cell C is a cell, the carrier frequency is f, the transmission power at time i PUSCH is _{P PUSCH, f, c (i} , j, q d, l), where j is a level parameter Configure the index of {P _O , α} parameter set, P _O is the target power value, α is the path loss compensation factor; l is the power control adjustment state index configured by the higher layer, corresponding to different closed-loop power processes, l can be 1 or 2 ; Q _d is the RS resource index, and the transmission power of PUSCH can be expressed as:

Among them, P _{CMAX, f, c} are the maximum transmit power of the terminal equipment, and other parameters and definitions are as follows:

1)

It is the serving cell c, the number of resources allocated to the PUSCH (ie the number of RBs) on the carrier f at time i, 2 ^μ represents different subcarrier spacing (SCS), for example, when μ=0, the corresponding subcarrier spacing is 15kHz.

2) _{PO_PUSCH, f, c} (j) is the target transmit power.

3) PL _c (q _d ) is the downlink path loss calculated by the terminal side through the reference signal (RS) resource q _d.

4) _{ΔTF, f, c} (i) is the adjustment amount related to the transmission format at the current transmission moment, and the adjustment amount can be selected according to the MCS used at the current moment.

5) f _f,c (i,l) represents the adjustment of the current PUSCH power at the transmission time i, which is indicated by the TPC command field in the DCI.

Among them, the above-mentioned TPC command field refers to the power adjustment amount as shown in Table 2. In Table 2, the specific choice of the cumulative power adjustment or the absolute power adjustment depends on the configuration of the high-level parameters.

Table II

The solutions provided by the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

The analysis of three scenarios based on the uplink power control method provided by the embodiment of the present application is as follows:

Scenario 1: Power allocation of a terminal device in the same cell

As an example and non-limiting, only one terminal device is scheduled on the same scheduling resource unit RBG in a cell. When the terminal device is allocated with multiple RBGs, the uplink power control method provided in this embodiment of the application is used for the multiple RBGs. The allocated power is not the same.

Scenario 2: Power allocation of multiple terminal devices accessing the same cell

It should be noted that the network equipment can determine the edge terminal equipment and the non-edge terminal equipment through the RSRP fed back by the terminal equipment or the SINR obtained through the uplink measurement. For example, terminal device 1, terminal device 2, and terminal device 3 are accessed in a cell, and the network device determines that terminal device 1 is an edge terminal device, and terminal device 2 and terminal device 3 are non-edge terminal devices.

As an example and non-limiting, for a multi-terminal device pairing scenario, that is, multiple terminal devices are scheduled on the same scheduling resource unit RBG in a cell. Since the terminal device 1 is far away from the network device and usually has a relatively high transmission power, the terminal device 2 paired with it can reduce the interference between the terminal device 2 and the terminal device 1 by reducing the transmission power, and give priority to ensuring the performance of the edge terminal device. However, when the terminal device 2 and the terminal device 3 are paired on other RBGs, the terminal device 2 can increase the transmission power to improve the performance of the terminal device 2. In this case, the transmission power of the terminal device 1 and the terminal device 2 on different RBGs will also be different.

Scenario 3: Power allocation of multiple terminal devices accessing different cells

In a multi-cell scenario, because the edge terminal equipment in the neighboring cell has a large transmit power, it causes large interference to the target cell. For dense urban areas with a small distance between stations, non-edge terminal equipment in neighboring cells will cause greater interference to the target cell. Therefore, it is necessary to perform power allocation through multi-cell coordination to reduce inter-cell interference.

When edge terminal devices are scheduled on the same RBG in multiple cells, the power allocation on the RBG can be appropriately reduced; when one edge terminal device and one non-edge terminal device are scheduled, the non-edge terminal device can be reduced In order to ensure the performance of edge terminal equipment. If the edge terminal device does not transmit full transmit power on some RBGs, for example, lower than the average transmit power on each RBG, the remaining power can be added to other RBGs.

Hereinafter, in conjunction with FIG. 2 to FIG. 6, the embodiment of the uplink power control method provided by the embodiment of the present application will be described in detail.

Fig. 2 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

S210: The terminal device (ie, an example of the first terminal device) receives first indication information from the network device (ie, an example of the first network device), where the first indication information is used to indicate the first transmission power.

It should be understood that the first transmit power is the transmit power allocated by the network device to the terminal device to send signals on the PUSCH, and the first transmit power may be the average transmit power on each resource block group RBG or each resource block RB of the terminal device. The first transmit power may also be the average transmit power on each RBG bundling group of the terminal device. Each RBG bundling group may include N RBGs, and N is a positive integer greater than or equal to 1.

In an implementation manner, the method for determining the first transmit power is as follows:

Assuming that the serving cell where the terminal device is located is c and the terminal device transmits the PUSCH on the subframe i of the serving cell c, then the PUSCH first transmit power p _{1 is} calculated as follows (it should be understood that the unit of the calculation result of the following formula is dBm):

_{P PUSCH,f,c} (i,j,q _d ,l) can be calculated by the following formula:

Among them, P _{PUSCH, f, c} (i, j, q _d , l) is the PUSCH transmit power transmitted at time i,

The serving cell is cell c, the number of resources allocated for PUSCH (ie, the number of RBs) on carrier f at time i, and L is the number of RBs included in each RBG. For the specific number of RBs included in each RBG, see Table 1 above. .

In another implementation manner, the method for determining the first transmit power is as follows:

Assuming that the serving cell where the terminal device is located is c, the terminal device transmits the PUSCH on the serving cell c subframe i, and binds C RBGs to indicate the power adjustment value, then the PUSCH first transmit power p _{1 is} calculated as follows (it should be understood that the following The unit of the formula calculation result is dBm):

The serving cell is cell c, the number of resources allocated for PUSCH (ie the number of RBs) on carrier f at time i, and L is the number of RBs included in each RBG. For the specific number of RBs included in each RBG, see Table 1 above. .

S220: The terminal device (ie, an example of the first terminal device) receives second indication information from the network device (ie, an example of the first network device), where the second indication information is used to indicate the transmission power corresponding to the first resource block group The adjustment value of, wherein the first resource block group includes at least one resource block RB, and the adjustment value is an offset value between the first transmission power and the second transmission power.

In an implementation manner, the second indication information may be used to indicate the adjustment value of the transmission power corresponding to a first resource block group, or may be used to indicate the adjustment value of the transmission power corresponding to the N first resource block groups, N It is an integer greater than or equal to 2, which is not specifically limited in this application.

In another implementation manner, the second indication information may also be used to indicate the second transmission power.

In the embodiment of the present application, the second indication information is carried by at least one of the following signaling: DCI signaling, MAC signaling, or RRC signaling.

As an example and not limitation, the second indication information may be carried through DCI signaling. For example, a new field is added to DCI, which is used to indicate C (C is a positive integer greater than or equal to 1) power adjustment values, where each power adjustment value can indicate a power offset value on at least one RB, It may also indicate the power offset value on at least one RBG, and may also indicate the power offset value on at least one RBG bundling group.

Exemplarily, assuming that the resource block group allocated to the terminal device includes RBG1 and RBG2, a 4-bit field is added to the DCI signaling. This field is used to indicate the power offset value on RBG1 and RBG2. The first 2 bits can be used to indicate the power adjustment on RBG1, and the last 2 bits of this field can be used to indicate the power adjustment value on RBG2.

As an example and non-limiting, the second indication information may also be carried through MAC signaling, and the second indication information may also be carried through RRC signaling. The specific indication method is the same as the indication method of DCI signaling. For brevity, details are not described here.

In the embodiment of the present application, the number of RBGs or the number of RBs included in the first resource block group should be smaller than the number of RBGs or the number of RBs in the system bandwidth allocated to the terminal device by the network device, that is, the first The number of RBGs or the number of RBs included in the resource block group is the number of resource block groups RBGs or the number of RBs allocated to the terminal device by the network device in the BWP. For example, for 16 resource block group RBGs allocated to the terminal device by the network device in the BWP, the first resource block group may include 4 RBGs, and the first resource block group may include 15 RBGs at most.

In an implementation manner, the adjustment value is determined according to the first channel quality information corresponding to the first resource block group, and the first channel quality information corresponding to the first resource block group includes a third transmit power, where the third transmit power Is the corresponding transmit power when the first terminal device corresponding to the first resource block group meets the first power allocation criterion. The first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion. The third transmit power is equal to the second Transmit power.

It should be understood that the first channel quality information corresponding to the first resource block group may also include a channel matrix, an interference covariance matrix, or noise power.

In another implementation manner, the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the second channel quality information corresponding to the first resource block group Including the fourth transmit power, the fourth transmit power is the corresponding transmit power when the first terminal device and the second terminal device corresponding to the first resource block group meet the first power allocation criterion, the fourth transmit power is equal to the second transmit power, and the fourth transmit power is equal to the second transmit power. The second terminal device is a terminal device that uses the first resource block group to send signals.

It should be understood that the second channel quality information corresponding to the first resource block group may also include a channel matrix, an interference covariance matrix, or noise power.

It should be understood that the channel quality information of the second terminal device includes the transmit power of the second terminal device

Optionally, the channel quality information of the second terminal device may also include a channel matrix, an interference covariance matrix, or noise power.

It should be understood that the channel matrix represents the channel experienced by the transmission signal propagating from the transmitting antenna of the terminal device to the receiving antenna of the network device.

It should be understood that the interference covariance matrix is expressed as

I _interference is the channel experienced by interference signals from other terminal devices received on each antenna of the network device.

It should be understood that the noise power refers to the thermal noise power generated by the electronic components in the network equipment.

Optionally, the second terminal device and the first terminal device access the same cell, or the second terminal device and the first terminal device access different cells.

Optionally, the second terminal device is determined from at least one reference terminal device according to the first scheduling resource information allocated by the first network device.

Optionally, the first network device obtains the second scheduling resource information allocated by the second network device; according to the first scheduling resource information and the second scheduling resource information, the second terminal device is determined from at least one reference terminal device.

Optionally, the reference terminal device includes a terminal device located in a cell accessed by the first terminal device, and/or a reference terminal device includes a terminal device located in a neighboring cell of the cell accessed by the first terminal device.

Optionally, when the reference terminal device includes a terminal device located in a neighboring cell of the cell accessed by the first terminal device, the method further includes: the first network device receives the third indication information from the third network device, and the third indication The information includes the wireless network temporary identification of the reference terminal device, and the third network device includes the network device of the neighboring cell of the cell accessed by the first terminal device.

S230: The terminal device determines the second transmit power.

In an implementation manner, the terminal device may determine the second transmission power according to the first transmission power obtained in step S210 and the adjustment value obtained in step S220.

It should be understood that the above-mentioned second transmission power is the sum of the first transmission power and the adjustment value.

In the embodiment of the present application, in order to reduce overhead, the network device only needs to indicate the difference between the actual transmit power and the average power on each RBG of the terminal device, and the adjustment value on the mth RBG allocated to the terminal device can be Expressed as:

p ₂ = p ₁ +Δ _m

Among them, p ₁ is the first transmission power obtained in step S210, p ₂ is the second transmission power, and Δ _m is the adjustment value obtained in step S220.

In another implementation manner, in order to further reduce the overhead, the network device may indicate the difference between the actual transmit power and the average power of each RBG bundling group of the terminal device, and the difference between the actual transmit power and the average power allocated to the terminal device is the t-th RBG bundling. on the adjustment values set Δ _'t can be expressed as:

Among them, t = 1, 2,..., T, T is the total number of RBG bundling groups, p′ _t is the average transmit power of the t-th RBG bundling group,

It is the first transmit power of the t-th RBG bundling group. For a specific calculation method, refer to step S210 above. For brevity, details are not repeated here.

In the embodiment of the present application, the following two methods are provided for quantification of the aforementioned adjustment value.

method one:

The adjustment value Δ _m is quantified based on RBG, and the quantified index is shown in Table 3:

Table Three

In the embodiment of the present application, the method for obtaining the parameter N in Table 3 is not specifically limited. For example, you can directly use the default value for N. Alternatively, the parameter N can be configured through RRC signaling, and the range of quantization accuracy can be adjusted and more flexible through the RRC signaling configuration.

Way two:

_'T RBG bundling quantized based on the adjustment value set Δ, quantization indexes as shown in Table 4:

Table Four

In the embodiment of the present application, the method for obtaining the parameters N and T in Table 4 is not specifically limited. For example, you can directly use the default values for N and T. Alternatively, the parameters N and T can be configured through RRC signaling, and configured through RRC signaling, so that the range of quantization accuracy can be adjusted and more flexible.

In the embodiment of the present application, the number of RBGs included in an RBG bundling group may be configured through RRC signaling, and the number of RBGs included in an RBG bundling group is not specifically limited. For example, RRC signaling configures an RBG bundling group to include one RBG, and RRC signaling may also configure an RBG bundling group to include N RBGs, where N is a positive integer greater than or equal to 2.

In the embodiment of this application, RB can also be used as the network device scheduling unit. At this time, the power control indication based on RB can also adopt the method in Table 3 or Table 4 above, and only the RBG in Table 3 or Table 4 needs to be replaced. For RB.

In another implementation manner, the terminal device may also directly determine the second transmission power according to the third transmission power obtained in step S220.

It should be understood that the above-mentioned second transmission power is the third transmission power.

In another implementation manner, the terminal device may also directly determine the second transmission power according to the fourth transmission power obtained in step S220.

It should be understood that the above-mentioned second transmission power is the fourth transmission power.

S240. The terminal device uses the second transmit power to send a signal on the first resource block group.

The uplink power control method provided by the embodiment of the present application uses resource block groups or resource blocks as the granularity to control and indicate the transmission power of the physical uplink shared channel, which can ensure efficient and reasonable power allocation and improve the overall performance of the system.

Fig. 3 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

The embodiment of the present application includes a network device and a terminal device. The network device sends a signal to the terminal device through a downlink channel, and the terminal device sends a signal to the network device through an uplink channel.

As an example and non-limiting, the first resource block group includes M (M is an integer greater than or equal to 1) RBGs, and each RBG includes one RB as an example, the uplink power control method provided in the present application will be described in detail.

It should be understood that each RBG may also include N RBs, and N is an integer greater than or equal to 2.

S310: The terminal device receives the first indication information sent from the network device.

In the embodiment of the present application, the first indication information is used to indicate the first transmit power p _{1 of the} terminal device. The specific calculation method of the first transmit power p _{1 is} the same as the calculation method of the first transmit power in S210. For brevity, this I won't repeat it here.

S320: The terminal device receives the second indication information sent from the network device.

In an implementation manner, the second indication information is used to indicate the adjustment value of the transmission power corresponding to the M RBGs, and the adjustment value is the difference between the third transmission power and the first transmission power. Assuming that the transmit power value on the mth (m is an integer greater than or equal to 1 and m is less than or equal to M) resource block group allocated by the network device to the terminal device is p _m , then the adjustment value on the mth resource block group Can be expressed as:

Δ _m =p _m -p ₁

_{As an example and not limitation, the network device can determine the third transmit power p m} on the m-th resource block group according to the channel quality information of the terminal device and the maximum capacity criterion:

There are a total of M resource block groups allocated to a terminal device in a TTI, and the transmit power value of the mth resource block group allocated to the terminal device is p _m , and the channel quality information corresponding to the resource block group is γ _m (ie , An example of the first channel quality information corresponding to the first resource block group), the total transmission power of the resource block group allocated by the network device to the terminal device is P _max , then the channel transmission power corresponding to the resource block group can be maximized by The criterion is obtained (that is, an example of the first power allocation criterion), expressed as:

among them,

H _m sends the frequency domain channel matrix on the m-th resource block group from the terminal to the base station, w _m is the weight coefficient on the receiving antenna of the network equipment, v _m is the precoding of the terminal equipment, and I _{m is on} the m-th resource block group The interference covariance matrix of, σ ² is the variance of noise (ie, noise power).

For example, the optimal solution of the above expression can be solved by the water injection power allocation algorithm, so as to obtain the expression of the third transmission power p _m of the terminal device.

_{It should be understood that the network device can also determine the third transmit power p m} on the m-th resource block group according to the channel quality information of the terminal device and the criterion for maximizing the signal-to-leakage-to-noise ratio, which is not specifically limited in this application.

In another implementation manner, the second indication information is used to indicate the third transmit power.

S330: The terminal device determines the second transmit power.

The terminal device determines the second transmission power according to the second indication information obtained in step S320, including the following two ways:

method one:

The second transmission power is the sum of the first transmission power obtained in step S310 and the adjustment value obtained in step S320.

As an example and non-limiting, suppose a total of 3 RBGs are allocated to the terminal device, namely, RBG1, RBG2, RBG3;

According to step S310, it can be obtained that the first transmission power of RBG1, RBG2, and RBG3 are all 1dB;

According to step S320, the adjustment values of RBG1, RBG2, and RBG3 can be obtained as 0.1dB, 0.2dB, and -0.3dB respectively;

In an implementation manner, the above-mentioned adjustment value is directly carried by DCI signaling, and the terminal device performs offset processing on the first transmit power of RBG1, RBG2, and RBG3 according to the indication of the DCI signaling to obtain adjusted RBG1, RBG2 The second transmit power of RBG3 is 1.1dB, 1.2dB and 0.7dB respectively.

In another implementation manner, N is 2 bits to quantize the adjustment value, and the quantization ranges corresponding to the adjustment values of RBG1, RBG2, and RBG3 are {0.1, -0.7, -0.3, 0.3}dB, {0.2 , -0.2, 0.4, -0.45}dB, {-0.3, 0.3, 0.15, 0.6}dB, the quantization range is carried by the DCI signaling, and the terminal equipment performs the first of the RBG1, RBG2, and RBG3 according to the instructions of the DCI signaling. The transmit power is subjected to offset processing, and the adjusted second transmit powers of RBG1, RBG2, and RBG3 can be obtained as 1.1dB, 1.2dB, and 0.7dB, respectively.

It should be understood that the quantization range of the aforementioned adjustment value may also be carried by MAC signaling, and may also be carried by RRC signaling.

Way two:

The second transmission power is the third transmission power obtained in step S320.

As an example and non-limiting, the terminal device receives the second indication information sent by the network device, and the second indication information is carried by DCI signaling. The newly added field in the DCI signaling is used to indicate the third transmit power. The terminal device according to the DCI signal The newly added field in the command directly determines the second transmit power value.

It should be understood that the second indication information may also be carried by MAC signaling, and may also be carried by RRC signaling.

S340. The terminal device uses the second transmit power to send a signal on the first resource block group.

The uplink power control method provided by the embodiments of the present application uses resource block group RBG or resource block RB as the granularity to perform power control instructions. This method can flexibly allocate physical uplink shared channel transmission power to terminal devices, thereby ensuring efficient and reasonable Power distribution improves the overall performance of the system.

Fig. 4 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

As an example and non-limiting, taking the first resource block group including M (M is an integer greater than or equal to 1) RBG bundling group as an example, the uplink power control method provided in the present application will be introduced in detail.

S410: The terminal device receives the first indication information sent from the network device.

In the embodiment of the present application, the first indication information is used to indicate the first transmit power of the terminal device

First transmit power

The specific calculation method of is the same as the calculation method of the first transmit power in S210, and will not be repeated here.

S420: The terminal device receives the second indication information sent from the network device.

In an implementation manner, the second indication information is used to indicate the adjustment value of the transmission power corresponding to the T RBG bundling groups, and the adjustment value is the difference between the third transmission power and the first transmission power.

Assuming that the transmit power value of the t-th (t is an integer greater than or equal to 1 and t is less than or equal to T) RBG bundling group allocated by the network device to the terminal device is p′ _t , the adjustment value of the t-th RBG bundling group can be Expressed as:

_{The third transmit power p′ t of} the t-th RBG bundling group can be obtained in the following manner:

Wherein, C indicates that the RBG bundling group includes C RBGs, and the calculation method of the third transmit power value of each RBG is the same as the method in step S320, and will not be described in detail here.

S430: The terminal device determines the second transmission power.

The terminal device determines the second transmission power according to the second indication information obtained in step S420, including the following two ways:

method one:

The second transmission power is the sum of the first transmission power obtained in step S410 and the adjustment value obtained in step S420.

As an example and non-limiting, suppose there are 3 RBG bundling groups allocated to the terminal device, namely RBG bundling 1, RBG bundling 2, RBG bundling 3, and each RBG bundling group includes 2 RBGs;

According to step S410, it can be obtained that the first transmit power of RBG bundling 1, RBG bundling 2, and RBG bundling 3 groups are all 1 dB;

According to step S420, the adjustment values for RBG bundling 1, RBG bundling 2, and RBG bundling 3 can be obtained as follows: 0.2dB, -0.3dB, 0.1dB;

In an implementation manner, the newly added field in the DCI signaling is used to indicate the above adjustment value, and the terminal device adjusts the first transmit power according to the DCI signaling, that is, RBG bundling 1 group, RBG bundling 2, RBG The second transmit powers of the three groups of bundling are 1.2dB, 0.7dB, and 1.1dB respectively.

In another implementation manner, the aforementioned adjustment value may also be N-bit quantization. For example, 1 bit is used to quantify the above adjustment value. For example, RBG bundling 1, RBG bundling 2, RBG bundling, and RBG bundling The quantization ranges of the corresponding adjustment values are: {0.2, 0.4}dB, {-0.3, 0.1} dB, {0.1, 0.6}dB, the quantization range can be carried by DCI signaling, and the terminal device offsets the first transmit power of RBG bundling 1, RBG bundling 2, and RBG bundling 3 groups according to the instructions of the DCI signaling. After shift processing, the adjusted second transmit power of RBG bundling 1, RBG bundling 2, and RBG bundling 3 groups can be obtained: 1.2dB, 0.7dB, 1.1dB, respectively.

Way two:

The second transmission power is the third transmission power obtained in step S420.

As an example and non-limiting, the third transmit power corresponding to RBG bundling 1, RBG bundling 2, and RBG bundling 3 groups are 1.2dB, 0.7dB, 1.1dB, respectively. The second indication information is carried by DCI signaling, and DCI signaling The newly added field is used to indicate the third transmit power. The terminal device determines the second transmit power values corresponding to the RBG bundling 1, RBG bundling 2, and RBG bundling 3 groups according to the newly added fields in the DCI signaling: 1.2 dB, 0.7dB, 1.1dB.

It should be understood that the above-mentioned second indication information may also be carried by MAC signaling, and may also be carried by RRC signaling.

S440. The terminal device uses the second transmit power to send a signal on the first resource block group.

The uplink power control method provided by the embodiment of the present application uses multiple resource block group RBG bundling groups as the granularity to perform power control instructions. Through this method, the physical uplink shared channel transmission power can be allocated to the terminal equipment more flexibly and efficiently, so as to ensure Efficient and reasonable power distribution improves the overall performance of the system.

Fig. 5 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

In the embodiment of the application, it includes a network device, a first terminal device, and a second terminal device. The network device sends a signal to the first terminal device or the second terminal device through a downlink channel, and the first terminal device or the second terminal device The device can send a signal to the network device through the uplink channel. The first terminal device and the second terminal device may be allocated on the same scheduling resource unit. For example, the scheduling resource unit may be a resource block group RBG or a resource block RB, or it may be an RBG bundling group.

As an example and not limited, taking the first terminal device and the second terminal device accessing the same cell i, and the first terminal device and the second terminal device are allocated to the same resource block group RBG within one TTI as an example, for this application The provided uplink power control method is introduced in detail.

S510: The first terminal device receives the first indication information #1 sent from the network device.

In this embodiment of the application, the first indication information #1 is used to indicate the first transmission power p _{1 of the} first terminal device, and the specific calculation method of the first transmission power p _{1 is} the same as the calculation method of the first transmission power in S210. I won't repeat them here.

S520: The second terminal device receives the first instruction information #2 sent from the network device.

The first indication information #2 is used to indicate the first transmit power p _{1 of the} second terminal device, and the specific calculation method of the first transmit power p _{1 is} the same as the calculation method of the first transmit power in S210, and will not be repeated here.

It should be understood that the embodiment of the present application does not specifically limit the sequence of step S510 and step S520. For example, the network device may perform step S510 first, and then perform step S520. Alternatively, the network device may perform step S520 first, and then perform step S510.

S530: The first terminal device receives the second indication information #1 sent from the network device.

In an implementation manner, the second indication information #1 is used to indicate the adjustment value of the transmission power of the RBG corresponding to the first terminal device, and the adjustment value is the difference between the fourth transmission power and the first transmission power.

As an example and non-limiting, the network device can determine the fourth transmit power on a certain resource block group according to the channel quality information of the terminal device and the maximum capacity criterion:

Suppose that the network device allocates a total of M resource block groups to the first terminal device in one TTI, and the power allocation value allocated to the mth (m is an integer greater than or equal to 1) scheduling resource block group or resource block is p _1,m (that is, the fourth transmit power of the first terminal device), the channel quality information corresponding to the mth scheduled resource block is γ _1,m (that is, an example of the second channel quality information corresponding to the first resource block group) ), the total transmit power of the first terminal device is P _1,max . The channel on the mth scheduling resource block of the first terminal device is H _1,m , and H _1,m is the channel from the first terminal device to the first network device. The network device allocates a total of M resource block groups to the second terminal device in this TTI, and the channel allocated to the mth (m is an integer greater than or equal to 1) scheduling resource block group or resource block is H _2,m , H _2,m is the channel from the second terminal device to the first network device, and the power allocation value of the second terminal device on the m-th scheduled resource block group or resource block is p _2,m (that is, the second terminal The fourth transmission power of the device), the channel quality information corresponding to the mth scheduled resource block is γ _2,m (that is, an example of the second channel quality information corresponding to the first resource block group), and the total transmission of the second terminal device The power is P _2,max . Then the maximum capacity of channel transmit power corresponding to the resource block group (ie, an example of the first power allocation criterion) can be expressed as:

Among them, γ _{1, m} and the second terminal device to the first terminal device γ _{2, m} is defined as follows:

Among them, w _1,m and w _2,m are the weight coefficients on the receiving antenna when the network device receives the first terminal device and the second terminal device _{, respectively, and v 1,m} and v _2,m are the precoding of the terminal device, respectively. For example, using a matched filtering method to solve the problem, w _1,m = (H _1,m v _1,m ) ^H , I _1,m is the interference covariance matrix from interference from other cells, and σ ² is the noise power.

By solving the optimized solution of the above expression through the optimization algorithm, the expression of the fourth transmission power (p _1,m or p _2,m ) can be obtained.

It should be understood that the network device may also determine the fourth transmit power on the m-th resource block group according to the channel quality information of the terminal device and the criterion for maximizing the signal-to-leakage-to-noise ratio, which is not specifically limited in this application.

In another implementation manner, the second indication information #1 is used to indicate the fourth transmit power of the first terminal device.

S540: The second terminal device receives the second indication information #2 sent from the network device.

In an implementation manner, the second indication information #2 is used to indicate the adjustment value of the transmission power of the RBG corresponding to the second terminal device, and the adjustment value is the difference between the fourth transmission power and the first transmission power.

For the specific determination method of the adjustment value of the RBG transmit power corresponding to the second terminal device, refer to step 530 above, and for the sake of brevity, it will not be repeated here.

In another implementation manner, the second indication information is used to indicate the fourth transmit power of the second terminal device.

S550: The first terminal device determines the second transmission power #1.

The first terminal device determines the second transmission power #1 according to the second indication information #1 obtained in step S530. For a specific determination method, refer to step S330 above. For brevity, details are not described herein again.

S560: The second terminal device determines the second transmission power #2.

The second terminal device determines the second transmission power #2 according to the second indication information #2 obtained in step S540. For a specific determination method, refer to step S330 above. For brevity, details are not described herein again.

S570: The first terminal device uses the second transmission power #1 to send a signal on the first resource block group.

S580: The first terminal device uses the second transmission power #2 to send a signal on the first resource block group.

The uplink power control method provided by the embodiments of the present application uses resource block groups or resource blocks as the granularity to perform power control instructions, and the uplink power is controlled by this method, which can effectively suppress intra-cell interference.

Fig. 6 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

In the embodiment of this application, it includes a first terminal device, a first network device, a second terminal device, and a second network device. The first network device may send data to the first terminal device through a downlink channel, and the first terminal device may send data to the network device through an uplink channel. The second network device may send data to the second terminal device through a downlink channel, and the second terminal device may send data to the network device through an uplink channel. The first network device and the second network device can exchange information through the Xn interface.

The first terminal device and the second terminal device may be allocated on the same scheduling resource unit. For example, the scheduling resource unit may be a resource block group RBG or a resource block RB, or it may be an RBG bundling group.

In the embodiment of the present application, the network device may determine the coordinated cell set according to the reference signal received power RSRP of the terminal device. For example, if the RSRP of the two cells measured by the terminal device is less than a certain threshold limit, they can be divided into the coordinated cell set.

In the embodiment of the present application, the network device performs resource scheduling and power allocation according to the measured SINR of the terminal device, and the resource scheduling and power allocation can be implemented in the following three ways.

Method 1: Multiple coordinated network devices complete scheduling and power allocation at the same time.

Manner 2: Cooperating multiple network devices first complete the time-frequency resource allocation, and then complete the cooperation of each RBG power.

Manner 3: The first network device first completes the time-frequency resource allocation and power allocation, and then the cooperating second network device completes the time-frequency resource allocation and power allocation according to the scheduling and power allocation results of the first network device. According to this method, each cooperative network device completes time-frequency resource allocation and power allocation serially. The time-frequency resource allocation results and power allocation results of cooperative network devices interact through the Xn interface.

As an example and non-limiting, the first network device and the first terminal device are devices in cell i, the second network device and the second terminal device are devices in cell j, the second network device is the network device of the coordinated cell, and A terminal device and a second terminal device are allocated in the same resource block group RBG in one TTI as an example, and the uplink power control method provided in the embodiment of the present application is described in detail.

S601: The first terminal device receives first instruction information #1 sent from the first network device.

In the embodiment of the present application, the first indication information #1 is used to indicate the first transmission power allocated to the first terminal device RBG. The specific calculation method of the first transmission power is the same as the calculation method of the first transmission power in S210. I won't repeat it here.

S602: The second terminal device receives the first indication information #2 sent from the second network device.

The first indication information #2 is used to indicate the first transmit power allocated to the RBG of the second terminal device. The specific calculation method of the first transmit power is the same as the calculation method of the first transmit power in S210, which will not be repeated here.

S610: The first network device receives the first information sent from the second network device.

In an implementation manner, the first information includes an index corresponding to the scheduling resource unit, a device number corresponding to the terminal device, and power allocation indication information.

As an example and non-limiting, the content of the first information is shown in Table 5:

Table 5

It should be understood that p ₁ , p ₂ , ..., p _{A in} Table 5 represent the actual transmit power value (ie, an example of the second transmit power) allocated to the scheduled terminal device.

S620: The first terminal device receives the second instruction information #1 sent from the network device.

Suppose that the first terminal device accesses cell i and a terminal device accesses cell j. In a TTI, the first network device allocates a total of M resource block groups to the first terminal device and is allocated to the mth scheduling resource block RBG The power allocation value is

The channel quality information corresponding to the mth scheduling resource block is

(That is, an example of the second channel quality information corresponding to the first resource block group), the total transmit power of the first terminal device is P _max1 . Suppose that in one TTI, the first network device also allocates the M resource block groups to the second terminal device, and the power allocation value on the RBG allocated to the mth scheduling resource block is

(That is, an example of the second channel quality information corresponding to the first resource block group), the total transmit power of the second terminal device is P _max2 . Then the channel transmit power corresponding to the resource block group can be obtained through the maximum capacity criterion (that is, an example of the first power allocation criterion), which is expressed as:

Among them, for the first terminal device

And the second terminal device

The definition is as follows:

among them,

Is the weight coefficient of the receiving antenna of cell i on the mth scheduling resource block,

Is the precoding of the first terminal,

Is the channel on the mth scheduled resource block of the first terminal device in cell i,

It is the channel from the mth scheduled resource block allocated to the second terminal equipment in cell j to cell i. First terminal equipment power allocation value

Second terminal equipment power allocation value

It can be obtained by maximization and throughput criteria:

Solving the optimal solution of the above expression through the optimization algorithm, the fourth transmit power of the first terminal device can be obtained

And the fourth transmit power of the second terminal device

Expression.

It should be understood that the network device may also determine the fourth transmit power on the m-th resource block group according to the channel quality information of the terminal device and the criterion for maximizing the signal-leakage-to-noise ratio, which is not specifically limited in this application.

S630: The second network device receives second instruction information #2 sent from the first network device.

S640: The second terminal device receives second instruction information #2 sent from the second network device.

For the specific determination method of the adjustment value of the RBG transmit power corresponding to the second terminal device, refer to step 620 above. For brevity, details are not described herein again.

S650: The first terminal device determines the second transmit power #1.

The first terminal device determines the second transmission power #1 according to the second indication information #1 obtained in step S620. For a specific determination method, refer to step S330 above. For brevity, details are not described herein again.

S660: The second terminal device determines the second transmit power #2.

The second terminal device determines the second transmission power #2 according to the second indication information #2 obtained in step S640. For a specific determination method, refer to step S330 above. For brevity, details are not described herein again.

S670: The first terminal device uses the second transmit power #1 to send a signal on the first resource block group.

S680: The second terminal device uses the second transmission power #2 to send a signal on the first resource block group.

In the embodiment of the present application, the network equipment instructs the transmission power of the scheduling unit of the terminal equipment in a cooperative manner, which can effectively reduce the interference between cells and improve the service quality of the network equipment in each cell.

FIG. 7 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

S710: The terminal device receives the first indication information sent from the network device.

In an embodiment, the first indication information is used to indicate the transmission power corresponding to the first resource block group. Wherein, the first resource block group is at least one resource block group allocated to the terminal device.

In an embodiment, the first indication information is used to indicate the transmission power corresponding to the M RBGs allocated by the network device to the terminal device. Suppose the transmission power corresponding to the mth (m is an integer greater than or equal to 1, and m is less than or equal to M) resource block group is the second transmission power p _m , the network device can maximize the capacity according to the channel quality information of the terminal device The criterion determines the second transmit power p _m on the m-th resource block group.

For example, in a TTI, a network device allocates a total of M resource block groups to a terminal device, and the second transmit power value on the mth resource block group allocated to the terminal device is p _m , and the channel quality corresponding to the resource block group The information is γ _m (ie, an example of the first channel quality information corresponding to the first resource block group), and the total transmission power of the resource block group allocated by the network device to the terminal device is P _max , then the channel corresponding to the resource block group is transmitted The power can be obtained by the maximum capacity criterion (that is, an example of the first power allocation criterion), which is expressed as:

among them,

For example, the optimal solution of the above expression can be solved by the water injection power allocation algorithm, so as to obtain the expression of the second transmission power p _m of the terminal device.

_{It should be understood that the network device may also determine the second transmit power p m} on the m-th resource block group according to the channel quality information of the terminal device and the criterion for maximizing the signal-to-leakage-to-noise ratio, which is not specifically limited in this application.

S720: The terminal device determines the transmit power of the first resource block group according to the first indication information.

_{For example, the terminal device determines the second transmit power p m} on the m-th resource block group according to the first indication information obtained in step S710.

As an example and non-limiting, the terminal device receives the first indication information sent by the network device according to the first indication information carried by the DCI signaling. The newly added field in the DCI signaling is used to indicate the second transmission power, and the terminal device according to the DCI signaling The newly added field in the command directly determines the second transmit power value.

It should be understood that the first indication information may also be carried by MAC signaling, and may also be carried by RRC signaling.

S730. The terminal device uses the second transmit power to send a signal on the first resource block group.

FIG. 8 shows a schematic flowchart of an uplink power control method provided by an embodiment of the present application.

As an example and non-limiting, taking the first resource block group including T (T is an integer greater than or equal to 1) RBG bundling group as an example, the uplink power control method provided in the present application will be introduced in detail.

It should be understood that each RBG bundling group may include N RBGs, and N is an integer greater than or equal to 1.

S810: The terminal device receives the first indication information sent from the network device.

In an embodiment, the first indication information is used to indicate the transmission power corresponding to the first resource block group. The first resource block group is at least one RBG bundling group allocated to the terminal device.

In an embodiment, the first indication information is used to indicate the transmission power corresponding to the T RBG bundling groups allocated by the network device to the terminal device. Suppose the t-th (t is an integer greater than or equal to 1, and t is less than or equal to T) the corresponding transmit power of the RBG bundling group is the second transmit power p′ _t , the t-th RBG bundling group can be obtained by the following method 2. Transmitting power p′ _t :

Wherein, C indicates that the RBG bundling group includes C RBGs, and the calculation method of the second transmit power value of each RBG is the same as the method in step S320, and will not be described in detail here.

S820: The terminal device determines the second transmit power.

_{For example, the terminal device determines the second transmit power p′ t} on the t-th RBG bundling group according to the first indication information obtained in step S810.

It should be understood that the foregoing first indication information may also be carried by MAC signaling, and may also be carried by RRC signaling.

S830: The terminal device uses the second transmit power to send a signal on the first resource block group.

The above describes the uplink power control method provided by the embodiment of the present application in conjunction with FIG. 2 to FIG. 8. Hereinafter, in conjunction with FIG. 9 to FIG. 11, the terminal device and network device provided by the embodiment of the present application are described.

FIG. 9 shows a schematic block diagram of a terminal device provided in an embodiment of the present application. As shown in FIG. 9, the terminal device 900 includes: a receiving unit 910 and a processing unit 920.

The receiving unit 910 is configured to receive first indication information from a first network device, where the first indication information is used to indicate a first transmission power;

The receiving unit 910 is further configured to receive second indication information from the first network device, where the second indication information is used to indicate an adjustment value of the transmission power corresponding to the first resource block group, where the first resource block group includes at least one resource Block RB, the adjustment value is the offset value between the first transmission power and the second transmission power;

The processing unit 920 is configured to determine the second transmission power according to the first transmission power and the adjustment value;

The processing unit 920 is further configured to send a signal on the first resource block group according to the second transmission power.

It should be understood that each unit in the terminal device 900 is respectively used to execute each action or processing procedure performed by the terminal device in the foregoing methods. Here, in order to avoid redundant description, detailed descriptions are omitted.

Fig. 10 shows a schematic block diagram of a network device provided by an embodiment of the present application. As shown in FIG. 10, the terminal 1000 includes: a receiving unit 1010 and a processing unit 1020.

The receiving unit 1010 is configured to send first indication information to a first terminal device, where the first indication information is used to indicate a first transmission power;

The receiving unit 1010 is configured to send second indication information to the first terminal device, where the second indication information is used to indicate the adjustment value of the transmission power corresponding to the first resource block group, where the first resource block group includes at least one resource block RB , The adjustment value is the offset value between the first transmission power and the second transmission power;

The processing unit 1020 is configured to determine the first indication information;

The processing unit 1020 is further configured to determine the second indication information.

It should be understood that each unit in the terminal 1000 is respectively used to execute each action or processing procedure performed by the network device in each of the foregoing methods. Here, in order to avoid redundant description, detailed descriptions are omitted.

FIG. 11 shows a schematic block diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 11, the terminal device 1100 includes: a transceiver 1110, a processor 1120, and a memory 1130. Among them, the transceiver 1110, the processor 1120, and the memory 1130 communicate with each other through internal connection paths to transfer control and/or data signals.

The transceiver 1110 is configured to receive first indication information from a first network device, where the first indication information is used to indicate a first transmit power;

The transceiver 1110 is further configured to receive second indication information from the first network device, where the second indication information is used to indicate the adjustment value of the transmission power corresponding to the first resource block group, where the first resource block group includes at least one resource Block RB, the adjustment value is the offset value between the first transmission power and the second transmission power;

The processor 1120 is configured to determine the second transmission power according to the first transmission power and the adjustment value;

The processor 1120 is further configured to send a signal on the first resource block group according to the second transmission power.

It should be understood that when the processor 1120 calls and runs the computer program from the memory, the processor 1120 may be used to execute the foregoing various methods and implement the execution subject of the method, such as the function of a terminal device.

Fig. 12 shows a schematic block diagram of a network device provided by an embodiment of the present application. As shown in FIG. 12, the network device 1200 includes: a transceiver 1210, a processor 1220, and a memory 1230. Among them, the transceiver 1210, the processor 1220, and the memory 1230 communicate with each other through internal connection paths to transfer control and/or data signals.

The transceiver 1210 is configured to send first indication information to a first terminal device, where the first indication information is used to indicate a first transmit power;

The transceiver 1210 is configured to send second indication information to the first terminal device, the second indication information is used to indicate the adjustment value of the transmission power corresponding to the first resource block group, where the first resource block group includes at least one resource block RB , The adjustment value is the offset value between the first transmission power and the second transmission power;

The processor 1220 is configured to determine the first indication information;

The processor 1220 is further configured to determine the second indication information.

It should be understood that when the processor 1220 calls and runs the computer program from the memory, the processor 1220 may be used to execute the foregoing method embodiments and implement the execution subject of the method embodiments, such as the functions of a network device.

Those of ordinary skill in the art may realize that the various illustrative logical blocks and steps described in the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. achieve. 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 the 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 is not 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.

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

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, ROM, random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes.

It should be noted that in the embodiments of the present application, "used to indicate" may include used for direct indication and used for indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain piece of information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated or the information to be indicated. The index of the information to be indicated, etc. The information to be indicated can also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, it is also possible to realize the indication of the to-be-indicated information by pre-arranging (for example, protocol stipulation) whether there is a certain cell, so as to reduce the indication overhead to a certain extent.

The first, second, and various numerical numbers described in the embodiments of the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different indication information, different time intervals, and so on.

The “pre-defined” or “pre-configured” described in the embodiments of this application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The application does not limit its specific implementation methods. Wherein, "saving" may refer to storing in one or more memories. The one or more memories may be provided separately, or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partly provided separately, and partly integrated in a decoder, a processor, or a communication device. The type of the memory can be any form of storage medium, which is not limited in this application.

The "protocols" involved in the embodiments of the present application may refer to standard protocols in the communication field, for example, may include LTE protocol, NR protocol, and related protocols applied to future communication systems, which are not limited in this application.

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

In the embodiments of this application, descriptions such as "when...", "under the condition of...", "if" and "if" all refer to equipment (such as terminal equipment or network equipment) under certain objective circumstances Corresponding processing will be made, which is not a time limit, and it does not require devices (such as terminal devices or network devices) to have judgment actions when implementing them, nor does it mean that there are other restrictions.

This application has described multiple embodiments in detail in combination with multiple flowcharts, but it should be understood that the relevant descriptions of these flowcharts and their corresponding embodiments are only examples for ease of understanding, and should not constitute any limitation to the application. Each step in each flow chart does not necessarily have to be performed, for example, some steps can be skipped. In addition, the execution order of each step is not fixed, nor is it limited to what is shown in the figure. The execution order of each step should be determined by its function and internal logic.

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

Claims

A method for uplink power control, characterized in that it includes:

The first terminal device receives first indication information from the first network device, where the first indication information is used to indicate the first transmit power;

The first terminal device receives second indication information from the first network device, where the second indication information is used to indicate the adjustment value of the transmit power corresponding to the first resource block group, wherein the first resource block The group includes at least one resource block RB, and the adjustment value is an offset value between the first transmission power and the second transmission power;

Determining, by the first terminal device, the second transmission power according to the first transmission power and the adjustment value;

The first terminal device uses the second transmit power to send a signal on the first resource block group.
The method according to claim 1, wherein the adjustment value is determined according to first channel quality information corresponding to the first resource block group, and first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal device corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes The maximum capacity criterion and the maximum signal-leakage-to-noise ratio criterion, the third transmission power is equal to the second transmission power.
The method according to claim 1, wherein the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, where the fourth transmission power is that the first terminal device and the second terminal device corresponding to the first resource block group satisfy the first power The transmission power corresponding to the allocation criterion, the first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device is A terminal device that uses the first resource block group to send a signal.
The method according to claim 3, wherein the channel quality information of the second terminal device includes the transmit power of the second terminal device.
The method according to claim 3 or 4, wherein the second terminal equipment and the first terminal equipment access the same cell, or the second terminal equipment and the first terminal equipment access different Community.
The method according to any one of claims 1 to 5, wherein the second indication information is carried by at least one of the following signaling:

DCI signaling, MAC signaling or RRC signaling.
A method for uplink power control, characterized in that it includes:

The first network device sends first indication information to the first terminal device, where the first indication information is used to indicate the first transmission power;

The first network device sends second indication information to the first terminal device, where the second indication information is used to indicate the adjustment value of the transmit power corresponding to the first resource block group, where the first resource The block group includes at least one resource block RB, and the adjustment value is an offset value between the first transmission power and the second transmission power.
The method according to claim 7, wherein the adjustment value is determined according to the first channel quality information corresponding to the first resource block group, and the first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes the maximum The third transmission power is equal to the second transmission power to reduce the capacity criterion and maximize the signal-leakage-to-noise ratio criterion.
The method according to claim 7, wherein the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, where the fourth transmission power is that the first terminal device and the second terminal device corresponding to the first resource block group satisfy the first power The transmission power corresponding to the allocation criterion, the first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device is A terminal device that uses the first resource block group to send a signal.
The method according to claim 9, wherein the channel quality information of the second terminal device includes the transmit power of the second terminal device.
The method according to claim 9 or 10, wherein the second terminal equipment and the first terminal equipment access the same cell, or the second terminal equipment and the first terminal equipment access different Community.
The method according to any one of claims 7 to 11, wherein the second indication information is carried by at least one of the following signaling:

DCI signaling, MAC signaling or RRC signaling.
A device for uplink power control, characterized in that it comprises:

A receiving unit, configured to receive first indication information from a first network device, where the first indication information is used to indicate a first transmission power;

The receiving unit is further configured to receive second indication information from the first network device, where the second indication information is used to indicate an adjustment value of the transmit power corresponding to the first resource block group, where the The first resource block group includes at least one resource block RB, and the adjustment value is an offset value between the first transmission power and the second transmission power;

A processing unit, configured to determine the second transmission power according to the first transmission power and the adjustment value;

The processing unit is further configured to send a signal on the first resource block group according to the second transmission power.
The apparatus according to claim 13, wherein the adjustment value is determined according to first channel quality information corresponding to the first resource block group, and first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal device corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes The maximum capacity criterion and the maximum signal-leakage-to-noise ratio criterion, the third transmission power is equal to the second transmission power.
The apparatus according to claim 13, wherein the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, where the fourth transmission power is that the first terminal device and the second terminal device corresponding to the first resource block group satisfy the first power The transmission power corresponding to the allocation criterion, the first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device is A terminal device that uses the first resource block group to send a signal.
The apparatus according to claim 15, wherein the channel quality information of the second terminal device includes the transmit power of the second terminal device.
The apparatus according to claim 15 or 16, wherein the second terminal equipment and the first terminal equipment access the same cell, or the second terminal equipment and the first terminal equipment access different Community.
The device according to any one of claims 13 to 17, wherein the second indication information is carried by at least one of the following signaling:

DCI signaling, MAC signaling or RRC signaling.
A device for uplink power control, characterized in that it comprises:

A receiving unit, configured to send first indication information to a first terminal device, where the first indication information is used to indicate a first transmission power;

The receiving unit is further configured to send second indication information to the first terminal device, where the second indication information is used to indicate an adjustment value of the transmission power corresponding to the first resource block group, wherein the first resource block group A resource block group includes at least one resource block RB, and the adjustment value is an offset value between the first transmission power and the second transmission power.
The apparatus according to claim 19, wherein the adjustment value is determined according to first channel quality information corresponding to the first resource block group, and first channel quality information corresponding to the first resource block group Includes a third transmit power, where the third transmit power is the corresponding transmit power when the first terminal device corresponding to the first resource block group satisfies a first power allocation criterion, and the first power allocation criterion includes The maximum capacity criterion and the maximum signal-leakage-to-noise ratio criterion, the third transmission power is equal to the second transmission power.
The apparatus according to claim 19, wherein the adjustment value is determined according to the second channel quality information corresponding to the first resource block group and the channel quality information of the second terminal device, wherein the first resource block group The second channel quality information corresponding to a resource block group includes a fourth transmission power, where the fourth transmission power is that the first terminal device and the second terminal device corresponding to the first resource block group satisfy the first power The transmission power corresponding to the allocation criterion, the first power allocation criterion includes a maximum capacity criterion and a maximum signal-leakage-to-noise ratio criterion, the fourth transmission power is equal to the second transmission power, and the second terminal device is A terminal device that uses the first resource block group to send a signal.
The apparatus according to claim 21, wherein the channel quality information of the second terminal device includes the transmit power of the second terminal device.
The apparatus according to claim 21 or 22, wherein the second terminal equipment and the first terminal equipment access the same cell, or the second terminal equipment and the first terminal equipment access different Community.
The device according to any one of claims 19 to 23, wherein the second indication information is carried by at least one of the following signaling:

DCI signaling, MAC signaling or RRC signaling.
An uplink power control device, comprising a processor and a memory, the memory is used to store instructions, and the processor is used to read the instructions stored in the memory, so as to implement the method according to any one of claims 1 to 12 Methods.
A computer-readable storage medium comprising a computer program, which when running on a computer, causes the computer to execute the method according to any one of claims 1 to 12.
A chip, characterized in that it includes at least one processor and an interface;

The at least one processor is configured to call and run a computer program, so that the chip executes the method according to any one of claims 1-12.