WO2021109023A1

WO2021109023A1 - Power control method and apparatus

Info

Publication number: WO2021109023A1
Application number: PCT/CN2019/122948
Authority: WO
Inventors: 黄煌; 邵华; 王晓娜
Original assignee: 华为技术有限公司
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2021-06-10

Abstract

Provided are a power control method and apparatus. In the technical solution of the present application, for the scenario of using multi-peak beams to send downlink signals, a terminal device measures multiple downlink signals with different indexes and determines an uplink transmission power according to the measured multiple downlink signals, so that the uplink transmission power can be rationally determined.

Description

Power control method and device

Technical field

This application relates to the field of communications, and more specifically, to power control methods and devices.

Background technique

In high-frequency communication, the transmitted signal has strong spatial directivity. In the initial stage of communication, neither the network device nor the terminal device knows the specific spatial location of the other party, so it is necessary to agree on the beam direction used by both parties.

In the traditional way, downlink signals, such as synchronization signal/physical broadcast channel block (SS/PBCH, also referred to as SSB), channel state information reference signal (channel state information-reference signal, CSI) -RS), etc., are all sent through single-peak beams, that is, one beam covers one direction, and different directions are covered by time division multiplexing. After the terminal device receives a downlink signal sent by a beam in a certain direction, it determines the downlink path loss according to the received power of the received downlink signal and the transmit power of the downlink signal issued in advance by the network device. Further according to the obtained downlink path loss and the target receiving power of the uplink signal (such as message 1, msg1), message 3 (msg3), etc.) issued by the network equipment in advance, determine the uplink transmission for sending the uplink signal power. Reasonable determination of the uplink transmission power can ensure that the received power of the uplink signal is within a reasonable range, that is, it will neither cause the power to be too low to be detected, nor cause the power to be too high to appear in an analog-to-digital converter (analog to digital converter, ADC) is saturated.

However, since each single-peak beam occupies a corresponding time-frequency resource, when the number of downlink signals is large, the resource overhead of downlink signals is relatively large. At the same time, as the communication frequency band becomes higher, such as in E-band, because the beam is narrower, more downlink signals are needed for spatial coverage. In order to solve this problem, in addition to the traditional single-peak beam, people have proposed a scheme of using a multi-peak beam to send downlink signals. Different multi-peak beams have different spatial directions, and each multi-peak beam includes multiple narrow peaks, and each narrow peak covers a different direction.

At present, there is no way to determine the uplink transmit power of the scheme of using the multi-peak beam to transmit the downlink signal.

Summary of the invention

The present application provides a power control method and device, which can reasonably determine the uplink transmit power in a scenario where a multi-peak beam is used to send a downlink signal.

In the first aspect, this application provides a power control method, which may be executed by a terminal device or a chip or a circuit included in the terminal device. The following description takes the terminal device as the execution subject as an example. The method includes: the terminal device detects N first downlink signals, the N first downlink signals have different indexes, and N is an integer greater than 1; The N first downlink signals determine the path loss between the terminal device and the network device; determine the uplink transmission power according to the path loss between the terminal device and the network device.

The first downlink signal may be any downlink signal that can be used to determine the uplink transmit power, and the embodiment of the present application does not specifically limit it. For example, the first downlink signal may be SSB, CSI-RS, and so on.

The N first downlink signals may be N first downlink signals continuously or discontinuously sent by a network device, and N first downlink signals continuously or discontinuously detected or received by a terminal device.

The N first downlink signals have different indexes, that is, the N first downlink signals are N different first downlink signals. For example, the N first downlink signals are SSB 1 to SSB N with indexes 1 to N. For another example, the N first downlink signals are CSI-RS 1 to CSI-RS N with indices 1 to N.

The network device can send N first downlink signals through N multi-peak beams. Wherein, each of the N multi-peak beams includes a plurality of narrow peaks, and each narrow peak covers a different direction. The N multimodal beams have different beam shapes.

In the above technical solution, in a scenario where a multi-peak beam is used to transmit downlink signals, the terminal device measures multiple downlink signals with different indexes, and determines the uplink transmit power according to the measured multiple downlink signals, so that the uplink transmission power can be reasonably determined. Transmit power.

In a possible implementation manner, the determining the path loss between the terminal device and the network device according to the N first downlink signals includes: according to the N first downlink signals Determine N path losses, and the N path losses correspond to the N first downlink signals in a one-to-one correspondence; according to the N path losses To determine the path loss between the terminal device and the network device.

Optionally, the transmission power of the N first downlink signals may be first indicated by the network device to the terminal device.

Optionally, the transmission power of the N first downlink signals may be agreed in advance, for example, agreed in a protocol.

In the above technical solution, the terminal equipment can determine the path loss respectively according to multiple first downlink signals, and further determine the path loss between the terminal equipment and the network equipment according to the determined multiple path losses, so that the terminal equipment can be accurately determined The path loss between and network equipment improves energy efficiency.

In a possible implementation manner, the according to the N path losses includes: determining the maximum value of the N path losses as the path loss between the terminal device and the network device; or , Determine the minimum value of the N path losses as the path loss between the terminal device and the network device; or determine the average value of the N path losses as the terminal device and the network device Path loss between network devices.

In a possible implementation manner, the determining the path loss between the terminal device and the network device according to the N first downlink signals includes: according to the N first downlink signals , Determine a target narrow peak, where the target narrow peak is a narrow peak covering the terminal device; and determine the path loss of a second downlink signal having a quasi co-located QCL relationship with the target narrow peak as the terminal device and the terminal device. Describes the path loss between network devices.

The signals or beams with the QCL relationship have the same or similar communication characteristics. Therefore, in the above technical solution, the terminal device can determine the path between the terminal device and the network device based on the second downlink signal that has a quasi co-location relationship with the target narrow peak. Loss, the path loss between terminal equipment and network equipment can be reasonably determined, thereby improving energy efficiency.

In a possible implementation manner, the determining the uplink transmit power according to the path loss between the terminal device and the network device includes: according to the path loss between the terminal device and the network device, And a target received power to determine the uplink transmission power, where the target received power is the received power of the uplink signal expected by the network device.

In a possible implementation, the method further includes: the terminal device receives configuration information from the network device, where the configuration information is used to indicate that the beam used to transmit the first downlink signal includes The number of narrow peaks; the terminal device determines a first power adjustment amount according to the number of the narrow peaks, and the first power adjustment amount is used to compensate for the gain difference between the transmit beam and the receive beam of the network device Value; said determining the uplink transmit power according to the path loss between the terminal device and the network device, and the target received power, including: according to the path loss between the terminal device and the network device, The target received power and the first power adjustment amount determine the uplink transmit power.

Since the network equipment uses the multi-peak beam to send the first downlink signal and the single-peak beam to receive the uplink signal sent by the terminal, the beam gain or the array gain corresponding to the same direction of the single-peak beam and the multi-peak beam are different, and the uplink and downlink gains are different. This may cause the network device to fail to correctly receive the uplink signal sent by the terminal device. Therefore, the terminal device of the above technical solution can further adjust the uplink transmission power to compensate for the gain difference between the transmission beam and the reception beam of the network device, which can improve the success rate of uplink signal demodulation.

In a possible implementation manner, the terminal device receives configuration information of the network device, the configuration information is used to indicate a target received power, and the target received power is the network device that has compensated for the gain between the transmit beam and the receive beam The received power after the difference.

Optionally, the network device configures a target received power pattern for the terminal device through the configuration information, and the terminal device determines the target narrow peak and uses the target received power cyclically according to the index of the target narrow peak.

For example, the target received power pattern is {3,5,4,3}dbm, and there are 16 narrow peaks in total. The index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), so mod(6,4 )=2, the second target received power is adopted, and 5dbm is used as the target received power this time.

In a possible implementation manner, the method further includes: determining a second power adjustment amount according to an index covering the target narrow peak of the terminal device, the second power adjustment amount being used to compensate for the network device The gain difference between the multiple narrow peaks of the transmission beam and/or the gain difference of the target narrow peak in the different transmission beams of the network device; according to the difference between the terminal device and the network device Path loss, and target received power, and determining the uplink transmit power includes: determining the uplink transmission power according to the path loss between the terminal device and the network device, the target received power, and the second power adjustment amount Uplink transmit power.

Considering that the antenna architecture of the network equipment is in a non-constant mode architecture, the same narrow peak direction may have different beam gains or array gains in different multi-peak beams, and the same multi-peak beam may have narrow peaks in different directions. It may have different beam gains or array gains, and the narrow peak gain difference caused by the above may cause the network equipment to fail to receive the uplink signal correctly. Therefore, in the above technical solution, the terminal equipment further adjusts the uplink transmit power to compensate for the gain difference of the same multi-peak beam in different directions and/or the gain difference of the same narrow peak direction in different multi-peak beams, which can improve the uplink transmission power. Signal demodulation success rate.

In a possible implementation manner, the method further includes: determining a second power adjustment amount according to an index covering the target narrow peak of the terminal device, the second power adjustment amount being used to compensate for the network device The gain difference between the multiple narrow peaks of the transmission beam and/or the gain difference of the target narrow peak in the different transmission beams of the network device; according to the difference between the terminal device and the network device The path loss, the target received power, and the first power adjustment amount to determine the uplink transmit power includes: according to the path loss between the terminal device and the network device, the target received power, the The first power adjustment amount and the second power adjustment amount determine the uplink transmission power.

In the above technical solution, the terminal equipment further adjusts the uplink transmit power to compensate for the gain difference of the same multi-peak beam in different directions and/or the gain difference of the same narrow peak direction in different multi-peak beams, and to compensate the network equipment The gain difference between the transmit beam and the receive beam can further improve the success rate of uplink signal demodulation.

In the second aspect, the present application provides a power control device, and the method can be executed by a network device or a chip or a circuit included in the network device. The following describes the network device as an example. The method includes: the network device sends N downlink signals, the N first downlink signals have different indexes, and N is an integer greater than 1, and the network device sends Configuration information, the configuration information including the transmit power of the N downlink signals, the number of narrow peaks included in the beam used to transmit the N downlink signals, the expected received power of the uplink signal, the narrow peaks and the power adjustment amount At least one of the corresponding relationship between and the QCL relationship of the narrow peak; the network device receives an uplink signal from a terminal device, and the transmission power of the uplink signal is determined according to the N downlink signals and the configuration information.

In the above technical solution, the network device sends N downlink signals with different indexes and configuration information to the terminal device, so that the terminal device can measure the N downlink signals with different indexes in the scenario of using a multi-peak beam to send the downlink signal. The signal and configuration information reasonably determine the uplink transmit power.

In a third aspect, the present application provides a power control device, including a module for executing the first aspect or any one of the implementation manners of the first aspect.

In a possible implementation manner, the device includes a processor, which is connected to a memory, and is configured to read and execute a software program stored in the memory to implement the first aspect or any one of the first aspect. The method described in the way.

In a possible implementation manner, the device includes one or more processors.

In a possible implementation manner, the device includes one or more memories.

In a possible implementation manner, the device further includes a transceiver.

In a possible implementation, the device is a chip that can be applied to terminal equipment.

In a possible implementation, the device is a terminal device.

In a fourth aspect, the present application provides a power control device, including a module for executing the second aspect or any one of the implementation manners of the second aspect.

In a possible implementation manner, the device includes a processor, which is connected to a memory, and is configured to read and execute a software program stored in the memory to implement the second aspect or any one of the second aspect. The method described in the way.

In a possible implementation manner, the device includes one or more memories.

In a possible implementation manner, the device further includes a transceiver.

In a possible implementation, the device is a chip that can be applied to network equipment.

In a possible implementation, the device is a network device.

In a fifth aspect, the present application provides a computer program product, the computer program product including computer instructions, when the computer instructions are executed, cause the foregoing first aspect or any possible implementation of the first aspect to be executed, Or cause the foregoing second aspect or the method in any possible implementation of the second aspect to be executed.

In a sixth aspect, the present application provides a computer-readable storage medium that stores computer instructions. When the computer instructions are executed, the foregoing first aspect or any possible implementation of the first aspect The method is executed, or the method in the foregoing second aspect or any possible implementation of the second aspect is executed.

In a seventh aspect, the present application provides a communication system including the power control device described in the third aspect and the power control device described in the fourth aspect.

Based on the above description, the terminal device in this application measures multiple downlink signals and determines the uplink transmit power according to some or all of the measured multiple downlink signals. In the scenario of using multi-peak beams to transmit downlink signals, it can be reasonably Determine the uplink transmit power.

Description of the drawings

Figure 1 is a schematic diagram of the relationship between beams and narrow peaks.

Fig. 2 is a schematic diagram of the architecture of a wireless communication system applicable to an embodiment of the present application.

Fig. 3 is a schematic diagram of using a single-peak beam to send a downlink signal.

Figure 4 is a schematic diagram of using a multi-peak beam to send a downlink signal.

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

Fig. 6 is a schematic structural diagram of a power control device according to an embodiment of the present application.

FIG. 7 is a schematic structural diagram of a power control device according to another embodiment of the present application.

FIG. 8 is a schematic diagram of a simplified terminal device structure.

FIG. 9 is a schematic structural diagram of a power control device according to another embodiment of the present application.

FIG. 10 is a schematic structural diagram of a power control device according to another embodiment of the present application.

Detailed ways

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

In order to facilitate the understanding of the embodiments of the present application, some related concepts are first introduced below. It should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments, and are not intended to limit the application.

1. Beam

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

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

The transmitting beam of a network device can refer to the distribution of signal strength in different directions in space after the signal is transmitted through the antenna of the network device. The receiving beam of the network device can refer to the wireless signal received from the antenna of the network device in space. Distribution of signal strength in different directions.

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

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

Optionally, multiple beams with the same or similar communication characteristics may be regarded as one beam.

One or more antenna ports can be included in one beam, which are used to transmit data channels, control channels, and sounding signals. One or more antenna ports forming a beam can also be regarded as an antenna port set.

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

The beam forming technology may be beamforming technology (beamforming) or other technical means. Beamforming technology can achieve higher antenna array gain by oriented in a specific direction in space. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, and a hybrid digital/analog beamforming technology. Analog beamforming can be achieved through phase shifters. A radio frequency chain (RF chain) adjusts the phase through a phase shifter, thereby controlling the change of the analog beam direction. Therefore, an RF link can only shoot one analog beam at the same time.

The radio frequency link may also be referred to as the radio frequency channel. That is, one RF channel can only shoot one beam at the same time.

2. Single-peak beam and multi-peak beam

Generally speaking, a single-peak beam has one wave crest, which can cover one direction. By adopting time division multiplexing, different directions can be covered.

Compared with a single-peak beam, a multi-peak beam can include multiple peaks, where each narrow peak covers a different direction. Therefore, a multi-peak beam can cover multiple directions. In some cases, some peaks of different multi-peak beams may overlap.

Among them, the wave peak can also be called narrow peak, beam component, sub-beam, narrow beam, thin beam, and so on. As shown in Figure 1, the crest is a part of the angle that a beam can cover. For the convenience of description and distinction, hereinafter collectively referred to as narrow peaks.

Understandably, the single-peak beam and the multi-peak beam refer to one beam, and the difference lies in how many narrow peaks the beam has. In other words, single-peak beams and multi-peak beams are distinguished according to the shape of the beam.

In the embodiment of the present application, each narrow peak may have a corresponding number or index number to distinguish different narrow peaks.

3. Quasi-co-location (QCL)

The co-location relationship is used to indicate that multiple resources have one or more identical or similar communication features. For multiple resources that have a co-location relationship, the same or similar communication configuration can be adopted. For example, if two antenna ports have a co-location relationship, the large-scale characteristics of the channel for one port to transmit a symbol can be inferred from the large-scale characteristics of the channel for the other port to transmit a symbol. Large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receiving parameters, terminal device receiving beam number, transmitting/receiving channel correlation, receiving angle of arrival, receiver antenna Spatial correlation, main angle of arrival (angel-of-arrival, AoA), average angle of arrival, expansion of AoA, etc.

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), worldwide interoperability for microwave access (WiMAX) communication system, the future 5th generation (5G) system or new wireless ( new radio, NR) etc.

Fig. 2 is a schematic diagram of the architecture of a wireless communication system applicable to an embodiment of the present application. As shown in FIG. 2, the wireless communication system includes a network device 210 and a terminal device 220. The terminal device is connected to the network device in a wireless manner, and the network device may use a multi-peak beam or a single-peak beam to send signals to the terminal device. The terminal device can be a fixed location, or it can be movable. FIG. 2 is only a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 2. The embodiment of the present application does not limit the number of network devices and terminal devices included in the wireless communication system.

The terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile network (PLMN) Terminal equipment, etc., this embodiment of the present application is not limited thereto.

The network device in the embodiment of the present application may be a device used to communicate with a terminal device, and the network device may be any device with a wireless transceiving function. This equipment includes but is not limited to: evolved node B (evolved node B, eNB), radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC) , Base transceiver station (BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BBU), wireless fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc., can also be 5G, such as NR , The gNB in the system, or the transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or it can also be a network node that constitutes a gNB or transmission point, Such as baseband unit (BBU), or distributed unit (DU), etc. In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements part of the functions of gNB, and the DU implements part of the functions of gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions. The DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.

Network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airborne aircraft, balloons, and satellites. The embodiments of the present application do not limit the application scenarios of network equipment and terminal equipment.

Network equipment and terminal equipment can communicate through licensed spectrum, or communicate through unlicensed spectrum, or communicate through licensed spectrum and unlicensed spectrum at the same time. Network equipment and terminal equipment can communicate through a frequency spectrum below 6 gigahertz (GHz), communicate through a frequency spectrum above 6 GHz, and communicate using a frequency spectrum below 6 GHz and a frequency spectrum above 6 GHz at the same time. The embodiment of the present application does not limit the spectrum resource used between the network device and the terminal device.

In high-frequency communication, the signal sent by network equipment and terminal equipment has strong spatial directivity. In the initial stage of communication, neither network equipment nor terminal equipment knows the specific spatial location of the other party, so it is necessary to agree on the beam used for dual transmission. direction.

In NR, the network device performs spatial scanning and transmission of the SSB, that is, using different spatial beams to transmit different SSBs. In the traditional way, downlink signals, such as SSB, CSI-RS, etc., are all sent through single-peak beams, that is, one beam covers one direction, and different directions are covered by time division multiplexing, for example, as shown in Figure 3. , With a period of 20ms, time division multiplexing of 20ms is performed, and SSB1-SSB16 are sent on different single-peak beams respectively; at the same time, different SSBs are associated with different resources (for example, random access resources), and the association relationship is passed by the network device. The physical broadcast channel/system information (PBCH/SI) (broadcast message) is delivered to the terminal device. After powering on, the terminal device independently selects the receiving beam for SSB reception. If the terminal device finds an SSB that meets the requirements, such as the reference signal received power (RSRP) of the received SSB is greater than a certain threshold, it will be based on the SSB's The received power and the transmission power of the SSB issued by the network equipment in advance, the estimated path loss value or path loss; combined with the target received power of the uplink signal configured by the network equipment (such as Msg1 or uplink random access signal, Msg3, etc.) , Calculate the uplink transmission power and use it to send the uplink signal; the terminal equipment uses the calculated uplink transmission power to send the uplink signal on the resource associated with the SSB that meets the requirements. In this way, it is possible to reasonably determine the transmit power of the uplink signal, and to ensure that the power received by the network device is within a reasonable range, that is, it will neither cause the power to be too low to detect, nor cause the ADC to saturate when the power is too high.

Specifically, taking the transmission power of Msg1 in NR as an example, the transmission power of Msg1 can be determined according to the following formula:

P _PRACH,b,f,c (i)=min{P _CMAX,f,c (i),P _{PRACH,target,f,c} +PL _b,f,c } Formula (1)

Among them, P _CMAX,f,c (i) represents the maximum transmit power of the terminal equipment; P _{PRACH,target,f,c} represents the target preamble received power (ie, the target received power of Msg1), and this parameter is controlled by the network device through radio resources (radio resource control, RRC) signaling, which is then notified to the physical layer by high-level signaling; PL _{b, f, c} represent the path loss value; the minimum function min{.} represents that the transmit power determined according to the above method cannot exceed the terminal equipment Maximum transmit power. The subscripts b, f, and c in the above several parameters respectively indicate that the parameter is for the b-th bandwidth part (BWP), the f-th carrier, and the c-th cell. After determining the transmission power of Msg1, the terminal device sends a random access preamble on the random access resource associated with the SSB that meets the requirements.

In the above-mentioned traditional method, each single-peak beam occupies a corresponding time-frequency resource. In the case of a large number of SSBs, the resource overhead of the downlink signal is relatively large. At the same time, as the communication frequency band becomes higher, such as in E-band, because the beam is narrower, more downlink signals are needed for spatial coverage. In order to solve this problem, in addition to the traditional single-peak beam, people have proposed a scheme of using a multi-peak beam to send downlink signals.

Figure 4 shows a schematic diagram of using a multi-peak beam to send a downlink signal. As shown in Figure 4, SSB1-SSB16 are sent by multi-peak beams with different beam shapes. One multi-peak beam corresponds to one SSB. Each multi-peak beam has 4 narrow peaks and can cover 4 directions at the same time. As shown in Figure 4, different multi-peak beams may have some narrow peaks overlapping. The terminal equipment covered by the overlapping narrow peaks can simultaneously receive the SSB of the overlapping multi-peak beams, for example, the multi-peak beam of SSB1 The fourth narrow peak of SSB and the third narrow peak of SSB4 overlap, and the terminal equipment covered by the narrow peak can receive SSB1 and SSB4 at the same time. When the position of the terminal device is fixed, the multi-peak beam pattern is reasonably designed, and the terminal device can pass multiple multi-peak beam measurements to uniquely determine which narrow peak of the multi-peak beam is covered by the terminal device.

Although compared with single-peak beam scanning transmission, multi-peak beam scanning transmission has the advantage of high scanning efficiency, but since each SSB includes multiple narrow peaks, the terminal device needs to continuously measure multiple SSBs to figure out which terminal device is located. Covered by narrow peaks. In order to understand and calculate the narrow peak covering the terminal equipment, the terminal equipment receives multiple SSBs, and because multiple SSBs are different, different path loss values may be calculated for these multiple SSBs, which will cause the terminal equipment to be unable to determine which SSB should be used Corresponding path loss value, therefore, the above-mentioned traditional method is not suitable for the scenario where a multi-peak beam is used to send a downlink signal. Currently, there is no way to determine the uplink transmit power for the scheme of using multi-peak beams to transmit downlink signals.

In response to the above-mentioned problems, the present application provides a power control method and device, which can reasonably determine the uplink transmission power in a scenario where a multi-peak beam is used to transmit a downlink signal.

Fig. 5 is a schematic flowchart of a power control method provided by an embodiment of the present application. The method in FIG. 5 can be used for the terminal equipment and network equipment in the wireless communication system shown in FIG. 2. In the embodiments of this application, terminal devices and network devices are taken as the execution body as an example for description. It should be understood that the execution body may also be a chip applied to a terminal device and a chip applied to a network device. The embodiment of this application does not make specific descriptions. limited.

In 510, the network device sends N first downlink signals to the terminal device. Correspondingly, the terminal device detects the N first downlink signals from the network device, where the N first downlink signals have different indexes, N is an integer greater than 1.

The first downlink signal may be any downlink signal that can be used to determine the uplink transmit power, and the embodiment of the present application does not specifically limit it. For example, the first downlink signal may be SSB, CSI-RS, and so on. The N first downlink signals may be N first downlink signals continuously or discontinuously sent by a network device, and N first downlink signals continuously or discontinuously detected or received by a terminal device. The N first downlink signals have different indexes, that is, the N first downlink signals are N different first downlink signals. For example, the N first downlink signals are SSB 1 to SSB N with indexes 1 to N. For another example, the N first downlink signals are CSI-RS 1 to CSI-RS N with indices 1 to N.

The network device can send N first downlink signals through N multi-peak beams. Wherein, each of the N multi-peak beams includes a plurality of narrow peaks, and each narrow peak covers a different direction. The N multi-peak beams have different beam shapes, and different multi-peak beams can cover different multiple directions by changing the beam shape of the multi-peak beam.

In 520, the terminal device determines the path loss between the terminal device and the network device according to the N first downlink signals.

In some embodiments, the N first downlink signals may be N first downlink signals that satisfy the condition among the plurality of first downlink signals detected by the terminal device. For example, the N first downlink signals may be N first downlink signals of which RSRP is greater than a threshold among the plurality of downlink signals detected by the terminal device. For another example, the N first downlink signals may be the first N first downlink signals or the last N first downlink signals among the multiple downlink signals continuously detected by the terminal device.

In other embodiments, the N first downlink signals may be all of the plurality of first downlink signals detected by the terminal device, that is, the terminal device may use all the detected plurality of first downlink signals. To calculate the uplink transmit power. At this time, each first downlink signal may or may not satisfy that the RSRP is greater than the threshold.

The embodiment of the present application does not specifically limit the manner in which the terminal device determines the path loss, as long as the terminal device determines the path loss based on the N first downlink signals.

In some embodiments, before 530 is executed, 540 may also be executed. The network device may send configuration information to the terminal device. Accordingly, the terminal device receives the configuration information sent by the network device. The configuration information includes the network device sending the above N pieces of configuration information. The transmit power of the first downlink signal. The terminal device determines N path losses according to the received power of the N first downlink signals and the transmit power of the N first downlink signals, where the N path losses correspond to the N first downlink signals in a one-to-one correspondence. For example, the terminal device separately calculates the difference between the received power and the transmit power of the N first downlink signals, and uses the obtained N differences as N path losses. Further, according to the obtained N path losses, the path loss between the terminal device and the network device is determined.

Optionally, for any one of the N first downlink signals, the terminal device may measure the same first downlink signal in multiple different periods (for example, SSB with the same index, or with CSI-RS with the same resource set index, or CSI-RS with the same resource index, or CSI-RS with the same port index, etc.), by averaging the received power of multiple identical first downlink signals to obtain the The received power of the first downlink signal is more accurate, so that the path loss corresponding to the first downlink signal can be calculated more accurately.

For example, as shown in Figure 4, the network device sends SSB1-SSB16 in a 20ms period. Taking SSB1 as an example, the terminal device can use the average value of the received power of multiple SSB1 as SSB1 by measuring SSB1 over multiple 20ms periods. Then, the path loss corresponding to SSB1 is determined according to the determined receiving power of SSB1 and the transmission power of SSB1 sent by the network device. For other SSBs, a similar way can be used to determine the corresponding path loss.

According to the obtained N path losses, the path loss between the terminal equipment and the network equipment is determined.

As an example, the smallest value among the N path losses may be determined as the path loss between the terminal device and the network device. As another example, the maximum value of the N path losses may be determined as the path loss between the terminal device and the network device. As another example, the average value of N path losses may be determined as the path loss between the terminal device and the network device.

For example, the terminal device may use the minimum, maximum, or average value of the path loss of all the detected multi-peak beams as the path loss between the terminal device and the network device. The terminal equipment determines the narrow peaks that cover the terminal equipment by continuously detecting 4 different multi-peak beams. In one measurement, the path loss measured by the 4 different multi-peak beams is {3, 6, 9, 15} dbm, the terminal device can use 3 (minimum), 15 (maximum), or 8.25 (average) as the path loss between the terminal device and the network device.

For another example, the terminal device may use the minimum, maximum, or average value of the effective path loss among the path losses of all the detected multi-peak beams as the path loss between the terminal device and the network device. The terminal equipment determines the narrow peaks that cover the terminal equipment by continuously detecting 4 different multi-peak beams. In one measurement, the measurement result of the terminal equipment on the continuous 4 different multi-peak beams is {1, 0, 1, 1 }, where 1 in the measurement result indicates that the multimodal beam meets the requirement (for example, the RSRP is greater than the threshold), and 0 indicates that the multimodal beam does not meet the requirement (for example, the RSRP is less than the threshold). The above measurement result indicates that the terminal device is first No. 3 and No. 4 multi-peak beams cover, and the path losses measured by No. 1, 3 and No. 4 multi-peak beams are {3, 9, 15}dbm respectively, then the terminal equipment can use 3 (minimum), 15( Maximum value) or 9 (average value) as the path loss between the terminal device and the network device.

After obtaining N path losses, the terminal device can also determine the path loss between the terminal device and the network device in other ways. For example, the weighted average of the N path losses can be determined as the difference between the terminal device and the network device. The path loss is not specifically limited in the embodiment of this application.

In other embodiments, before executing 530, executing 540, the network device may send configuration information to the terminal device, and accordingly, the terminal device receives the configuration information sent by the network device, and the configuration information includes the QCL of the narrow peak and the downlink signal. relationship. The terminal device can obtain the target narrow peak covering the terminal device through the measured N first downlink signals, and further determine the path loss between the terminal device and the network device according to the second downlink signal having a QCL relationship with the target narrow peak. The network device may configure the narrow peak with index x and the second downlink signal with index y to have a QCL relationship, that is, the configuration information may include the index of the narrow peak with QCL relationship and the index of the second downlink signal; the network device may also Configure the narrow peak with index x and the second downlink signal with resource set index y, the narrow peak with index x and the second downlink signal with resource index y, or the narrow peak with index x and the second downlink signal with port index y. 2. The downlink signal has a QCL relationship, that is, the configuration information may include the index of the narrow peak with the QCL relationship and the resource set index of the second downlink signal, the index of the narrow peak with the QCL relationship and the resource index of the second downlink signal, or have a QCL The index of the narrow peak of the relationship and the port index of the second downstream signal, etc.

For example, the terminal device measures 4 different multi-peak beams and obtains a target narrow peak. The target narrow peak has a QCL relationship with another reference signal (for example, SSB, CSI-RS, etc.), and the path loss of the reference signal The path loss used as a reference is used to calculate the transmit power of the uplink signal.

Optionally, when the target narrow peak and the second downlink signal have a QCL relationship, the second downlink signal is sent through the same narrow peak.

There are many ways for the terminal device to determine the target narrow peak covering the terminal device according to the N first downlink signals, which are not specifically limited in this application. As a possible implementation manner, the terminal device determines the target beam according to the measurement results of the N multi-peak beams used to transmit the N first downlink signals, and the preset correspondence between the measurement results and the narrow peaks.

For example, when the terminal device detects 4 different multi-peak beams, the terminal device can be pre-configured with the following pattern:

The rows of the pattern represent the measurement results of the multi-peak beam, and the columns represent the narrow peaks, with a total of 15 narrow peaks. If the measurement result of the terminal device on the four consecutive multi-peak beams is {1, 0, 0, 0}, it can be determined that the target narrow peak is the first narrow peak. If the terminal device measures the four consecutive multi-peak beams The measurement result is {0, 1, 0, 0}, then it can be determined that the target narrow peak is the second narrow peak, and so on. Wherein 1 in the measurement result indicates that the multimodal beam meets the requirement (for example, the RSRP is greater than the threshold), and 0 indicates that the multimodal beam does not meet the requirement (for example, the RSRP is less than the threshold).

In 530, the terminal device determines the uplink transmit power according to the path loss between the terminal device and the network device.

In some embodiments, the terminal device determines the uplink transmit power according to the path loss between the terminal device and the network device determined in 520 and the target received power, where the target received power is the received power of the uplink signal expected by the network device. Optionally, the network device may configure the target received power for the terminal device in advance, for example, through configuration information in 540. Optionally, the target received power may be predefined, for example, defined in a protocol. At this time, the network device and the terminal device default the target received power to a certain value.

Specifically, the terminal device may determine the uplink transmit power according to formula (1), except that the path loss PL _{b, f, c} is determined in the manner provided in this embodiment of the application, for example, it may be determined in step 520.

Since the network equipment uses the multi-peak beam to send the first downlink signal and the single-peak beam to receive the uplink signal sent by the terminal, the beam gain or the array gain corresponding to the same direction of the single-peak beam and the multi-peak beam are different, and the uplink and downlink gains are different. This may cause the network device to fail to correctly receive the uplink signal sent by the terminal device. Therefore, the terminal device can further adjust the uplink transmit power to compensate for the gain difference between the transmit beam and the receive beam of the network device.

In some embodiments, the terminal device determines the uplink transmit power according to the path loss between the terminal device and the network device, the target received power, and the first power adjustment amount. Wherein, the first power adjustment amount is used to compensate the gain difference between the transmitting beam and the receiving beam of the network device.

There are many ways to determine the first power adjustment amount, which is not specifically limited in the embodiment of the present application.

As an example, the network device may indicate the number of narrow peaks included in the multi-peak beam used to transmit the first downlink signal to the terminal device through configuration information, and the terminal device may determine the first power adjustment amount according to the number of narrow peaks.

For example, the terminal device may calculate the first power adjustment amount _{according to the formula P 1} =10log ₁₀ _{M, where P 1} is the first power adjustment amount and M is the number of narrow peaks. For example, a network device transmits a single-peak beam and a multi-peak beam with 4 narrow peaks at the same transmit power. Compared with the single-peak beam, the beam gain of each narrow peak of the multi-peak beam is reduced by P ₁ =10log ₁₀ 4 = 6db.

As another example, the network device may directly indicate the first power adjustment amount to the terminal device through the configuration information.

For example, the network device configures a first power adjustment amount pattern to the terminal device through configuration information, and the terminal device uses the first power adjustment amount cyclically according to the index of the target narrow peak after determining the target narrow peak. For example, the first power adjustment pattern is {3,5,4,3}dbm, and there are 16 narrow peaks in total. The index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), so mod(6 , 4)=2, the second first power adjustment value is adopted, and 5dbm is used as the first power adjustment value this time.

As another example, after determining the target narrow peak, the terminal device may determine the first power adjustment amount according to the index of the target narrow peak and a preset algorithm.

For example, if the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6, 4)+2=4, then 4dbm is used as the first power adjustment amount this time. For another example, the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6, 4)*0.5=1, and then 1dbm is used as the first power adjustment amount this time.

In the foregoing embodiment, the terminal device can use the obtained first power adjustment amount to adjust the uplink transmission power, and the formula (1) can be expressed as the following formula (2):

P _PRACH,b,f,c (i)=min{P _CMAX,f,c (i),P _{PRACH,target,f,c} +PL _b,f,c -P ₁ } Formula (2)

Among them, P _{CMAX, f, c} (i) represents the maximum transmit power of the terminal device; P _{PRACH, target, f, c} represents the target received power, this parameter is notified to the physical layer by the network device through RRC signaling, and then by high-level signaling ; PL _{b, f, c} represents the path loss value; P ₁ represents the first power adjustment amount; the minimum value function min{.} represents that the transmission power determined according to the above method cannot exceed the maximum transmission power of the terminal device. The subscripts b, f, and c in the above several parameters respectively indicate that the parameter is for the b-th BWP, f-th carrier, and c-th cell.

The terminal device can also use the obtained first power adjustment amount to adjust the target received power. In formula (1), P _{PRACH, target, f, c} can be determined by formula (3):

P _{PRACH, target, f, c} = P′ _{PRACH, target, f, c-} P ₁ formula (3)

Among them, P _{PRACH, target, f, c} represent the target received power; P′ _{PRACH, target, f, c} represent the target received power before adjustment. This parameter is notified to the physical layer by the network equipment through RRC signaling and then high-level signaling ; P ₁ represents the first power adjustment amount.

In other embodiments, the network device may display the adjusted target received power, that is, the network device pre-compensates for the gain difference between the network device’s transmit beam and the receive beam, and receives the adjusted target The power is indicated to the terminal equipment.

As an example, the network device configures a target received power pattern to the terminal device through configuration information, and after determining the target narrow peak, the terminal device uses the target received power cyclically according to the index of the target narrow peak.

In still other embodiments, after determining the target narrow peak, the terminal device may determine the target received power according to the index of the target narrow peak and a preset algorithm. For example, the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6, 4)+2=4, then 4dbm is used as the target received power this time. For another example, the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6, 4)*2=4, then 4dbm is used as the target received power this time.

Considering that the antenna architecture of the network equipment is in a non-constant mode architecture, the same narrow peak direction may have different beam gains or array gains in different multi-peak beams, and the same multi-peak beam may have narrow peaks in different directions. It may have different beam gains or array gains, and the narrow peak gain difference caused by the above may cause the network equipment to fail to receive the uplink signal correctly. Therefore, the terminal device may further adjust the uplink transmit power to compensate for the gain difference of the same multi-peak beam in different directions and/or the gain difference of the same narrow peak direction in different multi-peak beams.

In some embodiments, the network device may configure each narrow peak gain pattern for the terminal device through configuration information, and the terminal device determines the second power adjustment amount according to the determined target narrow peak index.

For example, the narrow peak gain pattern configured by the network device for the terminal device is {3, -5, 4, 3}dbm, and the target narrow peak index determined by the terminal device is 6 (assuming the index starts from 1), mod (6, 4) )=2, the second second power adjustment value -5dbm is used to adjust the uplink transmit power.

In other embodiments, after determining the target narrow peak, the terminal device may determine the second power adjustment amount according to the index of the target narrow peak and a preset algorithm.

For example, if the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6, 4)+2=4, then 4dbm is used as the second power adjustment amount this time. For another example, the index of the target narrow peak determined by the terminal device is 6 (assuming the index starts from 1), and the preset algorithm is mod(6,4)*0.5=1, and then 1dbm is used as the second power adjustment amount this time.

In the above embodiment, the uplink transmit power can be calculated by formula (4):

P _PRACH,b,f,c (i)=min{P _CMAX,f,c (i),P _{PRACH,target,f,c} +PL _b,f,c +ΔP _b,f,c } Formula (4 )

Among them, P _CMAX,f,c (i) represents the maximum transmit power of the terminal equipment; P _{PRACH,target,f,c} represents the target received power; PL _b,f,c represents the path loss value; ΔP _b,f,c represents The second power adjustment value; the minimum value function min{.} indicates that the transmission power determined according to the above method cannot exceed the maximum transmission power of the terminal device. The subscripts b, f, and c in the above several parameters respectively indicate that the parameter is for the b-th BWP, f-th carrier, and c-th cell.

Of course, in this application, the first power adjustment and the second power adjustment can also be calculated at the same time, that is, the gain difference of the same multi-peak beam in different directions and/or the same narrow peak direction in different multi-peak beams can be compensated at the same time. The gain difference, and the gain difference between the transmitting beam and the receiving beam of the network device, to ensure that the network device correctly receives the uplink signal.

It should be understood that P ₁ and ΔP _{b, f, c} in the foregoing embodiment may be configured as newly added parameters, or may not be configured as separate parameters, but as a part of path loss or target received power.

It should also be understood that although two parameters in the above formulas (2) and (4) are consistent with the existing protocol, the determination method is different, and the determination method is the method provided by each embodiment of the application.

In this way, after determining the uplink transmission power, the terminal device uses the transmission power to send an uplink signal to the network device, and accordingly, the network device receives the uplink signal sent by the terminal device.

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

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

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

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

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

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

Above, the method provided by the embodiment of the present application has been described in detail with reference to FIG. 5. Hereinafter, the device provided by the embodiment of the present application will be described in detail with reference to FIGS. 6 to 12. It should be understood that the description of the device embodiment and the description of the method embodiment correspond to each other. Therefore, for the content that is not described in detail, please refer to the above method embodiment. For brevity, details are not repeated here.

FIG. 6 shows a schematic structural diagram of a power control device 600 according to an embodiment of the present application. It should be understood that the apparatus 600 may correspond to each terminal device or chip in the terminal device described above, and may have any function of the terminal device in the method embodiment. The device 600 includes a receiving module 610 and a processing module 630.

The receiving module 610 is configured to detect N first downlink signals, where the N first downlink signals have different indexes, and N is an integer greater than 1.

The processing module 630 is configured to determine the path loss between the terminal device and the network device according to the N first downlink signals.

The processing module 630 is further configured to determine the uplink transmit power according to the path loss between the terminal device and the network device.

Optionally, the processing module 630 is specifically configured to: determine N path losses according to the received power of the N first downlink signals and the transmit power of the N first downlink signals, and the N The path loss corresponds to the N first downlink signals one-to-one; and the path loss between the terminal device and the network device is determined according to the N path losses.

Optionally, the processing module 630 is specifically configured to: determine the maximum value of the N path losses as the path loss between the terminal device and the network device; or, determine the N path losses The minimum value in is determined as the path loss between the terminal device and the network device; or, the average value of the N path losses is determined as the path loss between the terminal device and the network device.

Optionally, the processing module 630 is specifically configured to: determine a target narrow peak according to the N first downlink signals, where the target narrow peak is a narrow peak covering the terminal device; The path loss of the second downlink signal whose peak has a quasi co-location QCL relationship is determined as the path loss between the terminal device and the network device.

Optionally, the processing module 630 is specifically configured to: determine the uplink transmit power according to the path loss between the terminal device and the network device and the target received power, where the target received power is the network The received power of the uplink signal expected by the device.

Optionally, the receiving module 610 is further configured to: receive configuration information from the network device, where the configuration information is used to indicate the number of narrow peaks included in the beam used to transmit the first downlink signal; The processing module 630 is further configured to: the terminal device determines a first power adjustment amount according to the number of the narrow peaks, and the first power adjustment amount is used to compensate for the difference between the transmission beam and the reception beam of the network device The gain difference; the processing module 630 is specifically configured to: determine the uplink transmit power according to the path loss between the terminal device and the network device, the target received power, and the first power adjustment amount .

Optionally, the receiving module 610 is further configured to: receive configuration information of the network device, the configuration information is used to indicate a target received power, and the target received power is the network device that has compensated for the gain between the transmit beam and the receive beam The received power after the difference.

Optionally, the processing module 630 is further configured to determine a second power adjustment amount according to the index of the target narrow peak covering the terminal device, and the second power adjustment amount is used to compensate for the transmission beam of the network device The gain difference between the multiple narrow peaks and/or the gain difference of the target narrow peak in different transmission beams of the network device; the processing module 630 is specifically configured to: according to the terminal device and the The path loss between network devices, the target received power, and the second power adjustment amount are used to determine the uplink transmission power.

Optionally, the processing module 630 is further configured to determine a second power adjustment amount according to the index of the target narrow peak covering the terminal device, and the second power adjustment amount is used to compensate for the transmission beam of the network device The gain difference between the multiple narrow peaks and/or the gain difference of the target narrow peak in different transmission beams of the network device; the processing module 630 is specifically configured to: according to the terminal device and the The path loss between network devices, the target received power, the first power adjustment amount, and the second power adjustment amount are used to determine the uplink transmit power.

For a more detailed description of the foregoing receiving module 610 and processing module 630, reference may be made to the relevant description in the foregoing method embodiment, which will not be described here.

FIG. 7 shows a power control apparatus 700 provided by an embodiment of the present application. The apparatus 700 may be the terminal device described above. The device can adopt the hardware architecture shown in FIG. 7. The device may include a processor 710 and a transceiver 720, and optionally, the device may further include a memory 730. The processor 710, the transceiver 720, and the memory 730 communicate with each other through internal connection paths. The related functions implemented by the processing module 630 in FIG. 6 may be implemented by the processor 710, and the related functions implemented by the receiving module 610 may be implemented by the processor 710 controlling the transceiver 720.

Optionally, the processor 710 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control power control devices (such as base stations, terminal equipment, or chips, etc.), execute software programs, and process software program data.

Optionally, the processor 710 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.

The transceiver 720 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

The memory 730 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory. A compact disc (read-only memory, CD-ROM), and the memory 730 is used to store related instructions and data.

The memory 730 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 710.

Specifically, the processor 710 is configured to control the transceiver to perform information transmission with the network device. For details, please refer to the description in the method embodiment, which will not be repeated here.

In a specific implementation, as an embodiment, the apparatus 700 may further include an output device and an input device. The output device communicates with the processor 710 and can display information in a variety of ways. For example, the output device can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 910, and can receive user input in a variety of ways. For example, the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.

It can be understood that FIG. 7 only shows a simplified design of the power control device. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement this application are protected by this application. Within range.

In a possible design, the apparatus 700 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 710 in the terminal device. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

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

Optionally, when the device in this embodiment is a terminal device, FIG. 8 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate. In FIG. 8, the terminal device uses a mobile phone as an example. As shown in FIG. 8, the terminal device includes: an antenna 810, a radio frequency part 820, and a signal processing part 830. The antenna 810 is connected to the radio frequency part 820. In the downlink direction, the radio frequency part 820 receives the information sent by the network device through the antenna 810, and sends the information sent by the network device to the signal processing part 830 for processing. In the uplink direction, the signal processing part 830 processes the information of the terminal equipment and sends it to the radio frequency part 820, and the radio frequency part 820 processes the information of the terminal equipment and sends it to the network equipment through the antenna 810.

The signal processing part 830 may include a modem subsystem, which is used to process data at various communication protocol layers; it may also include a central processing subsystem, which is used to process terminal equipment operating systems and application layers; in addition, it may also Including other subsystems, such as multimedia subsystems, peripheral subsystems, etc., where the multimedia subsystem is used to control the terminal device camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices. The modem subsystem can be a separate chip. Optionally, the above apparatus for terminal equipment may be located in the modem subsystem.

The modem subsystem may include one or more processing elements 831, for example, including a main control CPU and other integrated circuits. In addition, the modem subsystem may also include a storage element 832 and an interface circuit 833. The storage element 832 is used to store data and programs, but the program used to execute the method executed by the terminal device in the above method may not be stored in the storage element 832, but stored in a memory outside the modem subsystem. When in use, the modem subsystem is loaded and used. The interface circuit 833 is used to communicate with other subsystems. The above apparatus for terminal equipment may be located in a modem subsystem, which may be implemented by a chip. The chip includes at least one processing element and an interface circuit, wherein the processing element is used to perform any of the above terminal equipment executions. In each step of this method, the interface circuit is used to communicate with other devices. In one implementation, the unit for the terminal device to implement each step in the above method can be implemented in the form of a processing element scheduler. For example, the device for the terminal device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the terminal device in the above method embodiment. The storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.

In another implementation, the program used to execute the method executed by the terminal device in the above method may be a storage element on a different chip from the processing element, that is, an off-chip storage element. At this time, the processing element calls or loads a program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.

In yet another implementation, the unit of the terminal device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the modem subsystem, where the processing elements may be integrated circuits, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.

The units of the terminal device that implement each step in the above method can be integrated together and implemented in the form of a system-on-a-chip (SOC), and the SOC chip is used to implement the above method. The chip can integrate at least one processing element and a storage element, and the processing element can call the stored program of the storage element to implement the method executed by the above terminal device; or, the chip can integrate at least one integrated circuit to implement the above terminal The method executed by the device; or, it can be combined with the above implementations. The functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.

It can be seen that the above apparatus for terminal equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the terminal equipment provided in the above method embodiments. The processing element can execute part or all of the steps executed by the terminal device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device are executed in a manner; of course, part or all of the steps executed by the terminal device can also be executed in combination with the first and second methods.

The processing element here is the same as the above description, and it may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element can be a memory or a collective term for multiple storage elements.

FIG. 9 shows a schematic structural diagram of a power control device 900 according to an embodiment of the present application. It should be understood that the apparatus 900 may correspond to the above-mentioned network device or a chip in the network device, and may have any function of the network device in the method embodiment.

In a possible implementation manner, the device 900 includes a receiving module 910 and a sending module 920.

The sending module 920 is configured to send N downlink signals, where the N downlink signals have different indexes, and N is an integer greater than 1.

The sending unit 920 is further configured to send configuration information, the configuration information including the transmission power of the N downlink signals, the number of narrow peaks included in the beam used to transmit the N downlink signals, and the desired reception of the uplink signal At least one of the power and the correspondence relationship between the narrow peak and the power adjustment amount.

The receiving module 910 is configured to receive an uplink signal from a terminal device, and the transmission power of the uplink signal is determined according to the N downlink signals and the configuration information.

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

FIG. 10 shows a power control apparatus 1000 provided by an embodiment of the present application. The apparatus 1000 may be the network device described above. The device can adopt the hardware architecture shown in FIG. 10. The device may include a processor 1010 and a transceiver 1020, and optionally, the device may also include a memory 1030. The processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through internal connection paths. The related functions implemented by the receiving module 910 and the sending module 920 in FIG. 9 can be implemented by the processor 1010 controlling the transceiver 1020.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Claims

A power control method, characterized by comprising:

The terminal device detects N first downlink signals, where the N first downlink signals have different indexes, and N is an integer greater than 1;

Determine the path loss between the terminal device and the network device according to the N first downlink signals;

Determine the uplink transmit power according to the path loss between the terminal device and the network device.
The method according to claim 1, wherein the determining the path loss between the terminal device and the network device according to the N first downlink signals comprises:

According to the received power of the N first downlink signals and the transmit power of the N first downlink signals, N path losses are determined, and the N path losses are the same as the N first downlink signals. One correspondence

According to the N path losses, the path loss between the terminal device and the network device is determined.
The method according to claim 2, wherein the determining the path loss between the terminal device and the network device according to the N path losses comprises:

Determine the maximum value of the N path losses as the path loss between the terminal device and the network device; or,

Determine the smallest value among the N path losses as the path loss between the terminal device and the network device; or,

The average value of the N path losses is determined as the path loss between the terminal device and the network device.
The method according to claim 1, wherein the determining the path loss between the terminal device and the network device according to the N first downlink signals comprises:

Determine a target narrow peak according to the N first downlink signals, where the target narrow peak is a narrow peak covering the terminal device;

The path loss of the second downlink signal having a quasi co-location QCL relationship with the target narrow peak is determined as the path loss between the terminal device and the network device.
The method according to any one of claims 1 to 4, wherein the determining the uplink transmit power according to the path loss between the terminal device and the network device comprises:

The uplink transmission power is determined according to the path loss between the terminal device and the network device and the target received power, where the target received power is the received power of the uplink signal expected by the network device.
The method according to claim 5, wherein the method further comprises:

Receiving, by the terminal device, configuration information from the network device, where the configuration information is used to indicate the number of narrow peaks included in a beam used to transmit the first downlink signal;

Determining, by the terminal device, a first power adjustment amount according to the number of narrow peaks, where the first power adjustment amount is used to compensate for the gain difference between the transmitting beam and the receiving beam of the network device;

The determining the uplink transmit power according to the path loss between the terminal device and the network device and the target received power includes:

The uplink transmit power is determined according to the path loss between the terminal device and the network device, the target received power, and the first power adjustment amount.
The method according to claim 5, wherein the method further comprises:

Determine a second power adjustment amount according to the index of the target narrow peak covering the terminal device, where the second power adjustment amount is used to compensate for the gain difference and/or between the multiple narrow peaks of the transmission beam of the network device Gain difference of the target narrow peak in different transmission beams of the network device;

The determining the uplink transmit power according to the path loss between the terminal device and the network device and the target received power includes:

The uplink transmit power is determined according to the path loss between the terminal device and the network device, the target received power, and the second power adjustment amount.
The method according to claim 6, wherein the method further comprises:

Determine a second power adjustment amount according to the index of the target narrow peak covering the terminal device, where the second power adjustment amount is used to compensate for the gain difference and/or between the multiple narrow peaks of the transmission beam of the network device Gain difference of the target narrow peak in different transmission beams of the network device;

The determining the uplink transmit power according to the path loss between the terminal device and the network device, the target received power, and the first power adjustment amount includes:

The uplink transmit power is determined according to the path loss between the terminal device and the network device, the target received power, the first power adjustment amount, and the second power adjustment amount.
A power control method, characterized by comprising:

The network device sends N downlink signals, the N downlink signals have different indexes, and N is an integer greater than 1.

The network device sends configuration information, where the configuration information includes the transmit power of the N downlink signals, the number of narrow peaks included in the beam used to transmit the N downlink signals, the expected received power of the uplink signal, and At least one of the correspondence between the narrow peak and the power adjustment amount;

The network device receives an uplink signal from a terminal device, and the transmission power of the uplink signal is determined according to the N downlink signals and the configuration information.
A power control device, characterized in that it comprises:

A receiving unit, configured to detect N first downlink signals, where the N first downlink signals have different indexes, and N is an integer greater than 1;

A processing unit, configured to determine the path loss between the terminal device and the network device according to the N first downlink signals;

The processing unit is further configured to determine the uplink transmission power according to the path loss between the terminal device and the network device.
The device according to claim 10, wherein the processing unit is specifically configured to:

According to the received power of the N first downlink signals and the transmit power of the N first downlink signals, N path losses are determined, and the N path losses are the same as the N first downlink signals. One correspondence

According to the N path losses, the path loss between the terminal device and the network device is determined.
The device according to claim 11, wherein the processing unit is specifically configured to:

Determine the maximum value of the N path losses as the path loss between the terminal device and the network device; or,

Determine the smallest value among the N path losses as the path loss between the terminal device and the network device; or,

The average value of the N path losses is determined as the path loss between the terminal device and the network device.
The device according to claim 10, wherein the processing unit is specifically configured to:

Determine a target narrow peak according to the N first downlink signals, where the target narrow peak is a narrow peak covering the terminal device;

The path loss of the second downlink signal having a quasi co-location QCL relationship with the target narrow peak is determined as the path loss between the terminal device and the network device.
The device according to any one of claims 10 to 13, wherein the processing unit is specifically configured to:

The uplink transmission power is determined according to the path loss between the terminal device and the network device and the target received power, where the target received power is the received power of the uplink signal expected by the network device.
The device according to claim 14, wherein the receiving unit is further configured to:

Receiving configuration information from the network device, where the configuration information is used to indicate the number of narrow peaks included in the beam used to transmit the first downlink signal;

The processing unit is further configured to determine a first power adjustment amount according to the number of narrow peaks, where the first power adjustment amount is used to compensate for the gain difference between the transmitting beam and the receiving beam of the network device;

The processing unit is specifically configured to determine the uplink transmit power according to the path loss between the terminal device and the network device, the target received power, and the first power adjustment amount.
The device according to claim 14, wherein the processing unit is further configured to:

Determine a second power adjustment amount according to the index of the target narrow peak covering the terminal device, where the second power adjustment amount is used to compensate for the gain difference and/or between the multiple narrow peaks of the transmission beam of the network device Gain difference of the target narrow peak in different transmission beams of the network device;

The processing unit is specifically configured to determine the uplink transmit power according to the path loss between the terminal device and the network device, the target received power, and the second power adjustment amount.
The device according to claim 15, wherein the processing unit is further configured to:

According to the index of the target narrow peak covering the terminal device, the second power adjustment amount is used to compensate the gain difference between the multiple narrow peaks of the transmission beam of the network device and/or the target narrow peak is The gain difference in different transmit beams of the network equipment;

The processing unit is specifically configured to determine the uplink according to the path loss between the terminal device and the network device, the target received power, the first power adjustment amount, and the second power adjustment amount Transmit power.
A power control device, characterized in that it comprises:

A sending unit, configured to send N downlink signals, the N downlink signals have different indexes, and N is an integer greater than 1;

The sending unit is further configured to send configuration information, the configuration information including the transmit power of the N downlink signals, the number of narrow peaks included in the beam used to transmit the N downlink signals, and the desired uplink signal At least one of the received power and the corresponding relationship between the narrow peak and the power adjustment amount;

The receiving unit is configured to receive an uplink signal from a terminal device, and the transmission power of the uplink signal is determined according to the N downlink signals and the configuration information.
A computer-readable storage medium, characterized in that, a computer program or instruction is stored in the storage medium, and when the computer program or instruction is executed by a power control device, the implementation is as defined in any one of claims 1 to 8. The method described above, or the method described in claim 9 can be implemented.