Transmission power determination method, apparatus and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communication, and provide a transmission power determination method, an apparatus and a storage medium. The method comprises: acquiring power control parameter information, wherein the power control parameter information comprises a first reference signal and a power control parameter associated with the first reference signal; determining a first beam and a first physical sidelink feedback channel (PSFCH) set, wherein the first beam covers a transmit beam of each PSFCH in the first PSFCH set, and the first PSFCH set is a subset of a scheduled PSFCH set; on the basis of the power control parameter information and the first beam, determining a power control parameter to be used; and on the basis of the power control parameter to be used and the first PSFCH set, determining a second PSFCH set and the transmission power of each PSFCH in the second PSFCH set, wherein the second PSFCH set is a subset of the first PSFCH set.

Description

Transmission power determination method, device and storage medium

[0001] Cross-references

[0002] The present invention claims priority to the Chinese patent application filed with the China Patent Office on December 15, 2023, with application number 202311733811.8 and invention name “Transmission power determination method, device and storage medium”. The entire contents of the application are incorporated into the present invention by reference. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a method, device, and storage medium for determining transmission power. Background Art

[0004] In a sidelink (SL) communication system, when services need to be transmitted between user equipment (UE), they can be transmitted directly from the transmitting UE to the receiving UE via a sidelink, bypassing the base station. For short-range communication users capable of SL communication, SL not only conserves wireless spectrum resources but also reduces data transmission pressure on the core network, thereby reducing system resource usage, increasing the spectrum efficiency of the cellular communication system, reducing communication latency, and ultimately saving network operating costs.

[0005] However, the accuracy of determining the transmission power of the physical sidelink feedback channel (PSFCH) is currently low, resulting in sidelink transmission power being too high or too low. Excessive transmission power can lead to high energy consumption and interference with other transmissions; while insufficient transmission power can result in insufficient power for decoding at the receiving end, failing to guarantee communication performance.

[0006] Summary of the Invention

[0007] The embodiments of the present disclosure provide a transmission power determination method, apparatus, and storage medium for improving the accuracy of determining the transmission power of a PSFCH.

[0008] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:

[0009] In a first aspect, a method for determining transmission power is provided, the method comprising: obtaining power control parameter information, the power control parameter information including a first reference signal and a power control parameter associated with the first reference signal; determining a first beam and a first physical side link feedback channel PSFCH set, the first beam covering the transmit beam of each PSFCH in the first PSFCH set, the first PSFCH set being a subset of the scheduled PSFCH set; determining the power control parameter to be used based on the power control parameter information and the first beam; determining the second PSFCH set and the transmission power of each PSFCH in the second PSFCH set based on the power control parameter to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

[0010] According to a second aspect, a communication device is provided, which includes: an acquisition unit for acquiring power control parameter information, the power control parameter information including a first reference signal and a power control parameter associated with the first reference signal; a processing unit for determining a first beam and a first physical side link feedback channel PSFCH set, the first beam covering the transmit beam of each PSFCH in the first PSFCH set, and the first PSFCH set being a subset of the scheduled PSFCH set; the processing unit is also used to determine the power control parameter to be used based on the power control parameter information and the first beam; the processing unit is also used to determine the second PSFCH set and the transmission power of each PSFCH in the second PSFCH set based on the power control parameter to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

[0011] In a third aspect, a communication device is provided, comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements the method provided in the first aspect above.

[0012] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions. When the computer instructions are executed on a computer, the computer executes the method provided in the first aspect.

[0013] In a fifth aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, causes the computer to execute the method provided in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0015] FIG1 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure;

[0016] FIG2 is a schematic diagram of a flow chart of a method for determining transmission power provided by an embodiment of the present disclosure;

[0017] FIG3 is a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure;

[0018] FIG4 is a schematic structural diagram of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0020] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this disclosure, unless otherwise specified, "plurality" means two or more.

[0022] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0023] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0024] Sidelink communication can also be called sidelink communication, direct communication, sidelink communication, PC5 interface link communication, or inter-terminal device link communication. Sidelink communication is wireless communication directly between multiple UEs (for example, two UEs). In sidelink communication, multiple UEs that are geographically close to each other can communicate directly. Data transmission in direct communication is different from typical cellular network communication. Typical cellular network communication includes uplink (UL) transmission (for example, UE sends data to base station) and downlink transmission (for example, base station sends data to UE). The interface between base station and UE is usually called Uu interface; but in sidelink communication, data is sent directly from the transmitting UE to the receiving UE via an air interface such as PC5 interface, without passing through any network equipment. Sidelink communication methods include but are not limited to device-to-device (D2D) communication, such as early warning communication for disasters such as earthquakes and fires, and vehicle-to-everything (V2X) communication, such as remote driving and unmanned driving. Side-link communication can provide multiple advantages, such as reducing the data transmission load on the core network, system resource consumption, transmission power consumption and network operation cost, saving wireless spectrum resources and improving the spectrum utilization of cellular wireless network systems.

[0025] There are currently two air interface technologies (i.e., radio access technologies (RAT)) for SL communications: SL communications using the fourth-generation mobile communication technology (4G) long term evolution (LTE) and SL communications using the fifth-generation mobile communication technology (5G) new radio (NR) technology. In the future, SL communications using the sixth-generation mobile communication technology (6G) may emerge.

[0026] In the licensed spectrum, for UEs based on sidelink transmission within the coverage of the cellular network, the sidelink transmission must ensure that it does not interfere with the uplink transmission of the Uu interface as much as possible. Therefore, for PSFCH, power control can be performed based on the downlink (DL) path loss (PL) of the base station.

[0027] For example, in PSFCH transmission opportunity i, the UE is scheduled for N sch,Tx,PSFCH PSFCH, the maximum number of PSFCHs that a UE can transmit simultaneously is N max,PSFCH The UE determines that the PSFCHs to be sent simultaneously are N Tx,PSFCH (i.e. the number of PSFCHs that the UE finally determines to send), the transmission power of PSFCH transmission k′ is P PSFCH,k′ (i), 1≤k′≤N Tx,PSFCH , the maximum transmission power of UE is P CMAX .

[0028] Step (1): When the power control parameter dl-P0-PSFCH is provided or configured (i.e., if the receiving end target power based on DL path loss power control is provided or configured to the UE), P PSFCH,one =P O,PSFCH +10log 10 (2 μ )+α PSFCH PL [dBm]; where P PSFCH,one Indicates the reference transmission power, P O,PSFCH It is the value provided by the parameter dl-P0-PSFCH, which can be understood as the receiving end target power (or target received power) based on DL path loss power control; α PSFCHrepresents the compensation factor for downlink path loss; PL represents downlink path loss; μ represents the subcarrier spacing configuration, that is, the subcarrier spacing configuration corresponding to the bandwidth part (BWP) where the PSFCH is located (or the subcarrier spacing configuration used by the PSFCH).

[0029] For calculating the downlink path loss PL D The reference signal of the DL path loss can be determined as follows: when the UE is configured to monitor the physical downlink control channel (PDCCH) to detect the downlink control information (DCI) format 0_0 in the serving cell, the reference signal for calculating the DL path loss used when determining the transmission power of the physical uplink shared channel (PUSCH) scheduled by DCI format 0_0 is used as the reference signal for calculating the downlink path loss PL D When the UE is not configured to monitor the PDCCH to detect the DCI format 0_0 in the serving cell, the synchronization signal block (SSB) of the master information block (MIB) obtained by the UE is used as the reference signal for calculating the downlink path loss PL D The reference signal.

[0030] If N sch,Tx,PSFCH ≤N max,PSFCH , and satisfies P PSFCH,one +10log 10 (N sch,Tx,PSFCH )≤P CMAX , then N Tx,PSFCH =N sch,Tx,PSFCH , and P PSFCH,k′ (i) = P PSFCH,one .

[0031] If N sch,Tx,PSFCH ≤N max,PSFCH , but does not satisfy P PSFCH,one +10log 10 (N sch,Tx,PSFCH )≤P CMAX , the UE autonomously determines (or selects) N according to the priority of PSFCH, the transmission content of PSFCH (for example, the transmission content may be HARQ-ACK information, or conflict information, etc.), etc. Tx,PSFCH PSFCH, and P PSFCH,k′ (i) = min(P CMAX -10log 10 (NTx,PSFCH ),P PSFCH,one ).

[0032] If N sch,Tx,PSFCH >N max,PSFCH , the UE autonomously determines N based on the priority of PSFCH and the transmission content of PSFCH max,PSFCH PSFCH, if P PSFCH,one +10log 10 (N max,PSFCH )≤P CMAX , then N Tx,PSFCH =N max,PSFCH andP PSFCH,k′ (i) = P PSFCH,one Otherwise, according to the priority of PSFCH and the transmission content of PSFCH, N is selected autonomously. Tx,PSFCH PSFCH, and P PSFCH,k′ (i) = min(P CMAX -10log 10 (N Tx,PSFCH ),P PSFCH,one ).

[0033] Step (2): If the power control parameter dl-P0-PSFCH is not provided or configured (i.e., if the receiving end target power based on DL path loss power control is provided or configured to the UE), P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ); where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0034] It should be noted that steps (1) and (2) in the above description represent different operations in the process of determining the transmission power of PSFCH transmission k′ in PSFCH transmission opportunity i, and do not represent the order of the different operations.

[0035] SL communication can operate in the millimeter wave frequency band (for example, frequency range 2 (FR 2)). Since the wavelength of the millimeter wave frequency band is short and has high propagation loss, the introduction of beams can overcome the path loss caused by high-frequency transmission and increase the coverage of SL communication. Currently, the 3rd generation partnership project (3GPP) has established a project on beam management for SL unicast communication. However, it can be seen from the above content that in the related technology, the SL power control parameters do not take into account the influence of the beam, especially the power control parameters based on the downlink path loss do not take into account the influence of the beam, resulting in the low accuracy of the currently determined PSFCH transmission power, making the side link transmission power too high or too low. Excessive transmission power may cause high energy consumption and interfere with other transmissions. Too low transmission power may result in insufficient power to support decoding at the receiving end, and communication performance cannot be guaranteed.

[0036] Based on this, the embodiments of the present disclosure provide a transmission power determination method, device and storage medium, which improves the accuracy of determining the transmission power of PSFCH by considering the impact of the transmitting beam on the transmission power of PSFCH when determining the transmission power of PSFCH, thereby reducing energy consumption and reducing interference to other transmissions while ensuring communication performance.

[0037] The following describes the solutions of the embodiments of the present application with reference to the accompanying drawings.

[0038] The technical solutions provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, SL communication networks using 5G NR, SL communication networks using 4G LTE technology, SL communication networks using 6G that may appear in the future, and other future mobile communication networks or SL communication networks in multiple communication convergence systems, etc. The embodiments of the present disclosure are not limited to this.

[0039] FIG1 is a schematic diagram of the structure of a communication system provided by an embodiment of the present disclosure. As shown in FIG1 , the communication system 10 includes multiple base stations (e.g., base station 21 and base station 22) and multiple terminals (e.g., terminal 31, terminal 32, terminal 33, and terminal 34). The multiple base stations and the multiple terminals may be connected via a wired network or a wireless network. The wired network or wireless network may include routers, switches, or other devices that facilitate communication between the multiple base stations and the multiple terminals, which is not limited by the embodiments of the present disclosure.

[0040] In some embodiments, a base station is used to provide wireless access services to multiple terminals. Specifically, a base station provides a service coverage area (also known as a cell). Terminals within this area can communicate with the base station via wireless signals, thereby receiving the wireless access services provided by the base station. The service coverage areas of base stations may overlap, and terminals within the overlapping areas can receive wireless signals from multiple base stations.

[0041] In some embodiments, each of the multiple base stations can be connected to multiple terminals. For example, base station 21 is connected to terminal 31 and terminal 32. Terminal 31 and terminal 32 can be located in the same cell or in different cells. In other words, a base station can provide network services to terminals in one cell or to terminals in multiple cells simultaneously.

[0042] In some embodiments, each of the multiple base stations (e.g., base station 21) can be an evolution nodeB (eNB), a next-generation nodeB (gNB), a transmission receive point (TRP), a transmission point (TP), an access point (AP), or any other access node. Based on the size of the service coverage area provided, base stations can be further divided into macro base stations for providing macro cells, micro base stations for providing pico cells, and femto base stations for providing femto cells. With the continuous evolution of wireless communication technology, future base stations may also adopt other names.

[0043] In some embodiments, each of the multiple terminals (e.g., terminal 31) may be a device with wireless transceiver capabilities, such as a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc. The embodiments of the present disclosure do not limit the specific type of the terminal.

[0044] In some embodiments, terminals can communicate with each other, for example, terminal 31 in Figure 1 performs SL communication with terminal 32, and terminal 33 performs SL communication with terminal 34. Communication between terminals refers to communication directly between two terminals. Taking device-to-device (D2D) communication as an example, a terminal performing D2D communication can be called a D2D terminal, and the link between two terminals performing D2D communication can be called a pair of D2D links. The two terminals in a pair of D2D links can be receivers and transmitters to each other. In one transmission, one terminal can be a transmitter and the other terminal can be a receiver. If both terminals support simultaneous sending and receiving functions, each D2D terminal can be both a transmitter and a receiver at the same time.

[0045] It should be understood that Figure 1 is an exemplary structural diagram, and the number of devices included in the communication system shown in Figure 1 is not limited, for example, the number of base stations is not limited, and the number of terminals is not limited. Furthermore, in addition to the devices shown in Figure 1, the communication system shown in Figure 1 may also include other devices, which is not limited.

[0046] The present disclosure provides a method for determining transmission power, which is applied to a terminal. As shown in FIG2 , the method includes the following steps:

[0047] Step S101: Acquire power control parameter information.

[0048] The power control parameter information includes the first reference signal and a power control parameter associated with the first reference signal.

[0049] As an example, the terminal obtains the power control parameter information by receiving the power control parameter information sent by the base station (or the network side). Alternatively, the terminal obtains the power control parameter information by receiving power control parameter signaling sent by the base station (or the network side), where the power control parameter signaling carries the power control parameter information.

[0050] As another example, preconfigured or predefined power control parameter information is stored in a memory of the terminal, and the terminal obtains the power control parameter information, which may be that the terminal obtains the power control parameter information from the memory of the terminal.

[0051] In some embodiments, the first reference signal includes at least one of the following:

[0052] Downlink channel state information reference signal (CSI-RS); downlink channel state information interference measurement signal (CSI-IM); downlink demodulation reference signal (DMRS); uplink demodulation reference signal; sounding reference signal (SRS); phase tracking reference signal (PTRS); random access channel (RACH); downlink synchronization signal block (synchronization signal / physical broadcast channel (PBCH) block, SSB); positioning reference signal (PRS); sidelink channel state information reference signal; sidelink demodulation reference signal; sidelink phase tracking reference signal; sidelink positioning reference signal; sidelink synchronization signal block (physical sidelink broadcast channel (PSBCH) block, S-SSB).

[0053] In some embodiments, the power control parameter associated with the first reference signal includes at least one of the following: a target received power, a compensation factor for downlink path loss, and a second reference signal for determining downlink path loss.

[0054] In some embodiments, the power control parameter information includes at least one first reference signal and a power control parameter associated with each of the at least one first reference signal.

[0055] For example, taking the reference signal as RS as an example, the power control parameter information may include the first reference signal RS k and the first reference signal RS k The associated power control parameters include the parameters used to calculate the transmission power required based on the downlink path loss, including the target received power P O,PSFCH,k , compensation factor α for downlink path loss PSFCH,k and a second reference signal R for determining the downlink path loss PSFCH,k, where k = 1, 2, ..., K, where K is a positive integer greater than 0, K represents the number of first reference signals, and the subscript k in the power control parameter represents the power control parameter and the first reference signal RS k It should be noted that, when the power control parameter information does not include the downlink path loss compensation factor, the downlink path loss compensation factor takes a default value, which may be pre-configured or pre-defined, for example, α PSFCH,k =1.

[0056] In some embodiments, the first reference signal is associated with a power control parameter on each time domain resource. For example, the power control parameter associated with the first reference signal includes a target received power and a compensation factor for downlink path loss. Based on this, the power control parameter information includes the first reference signal RS k And time domain resources TR n The corresponding first reference signal RS k Associated target received power P O,PSFCH,k,n , compensation factor α for downlink path loss PSFCH,k,n , or the power control parameter information includes a first reference signal RS k And in the time domain resource TR n The first reference signal RS k Associated target received power P O,PSFCH,k,n and the compensation factor α for downlink path loss PSFCH,k,n Wherein, k=1,2,…,K,n=1,2,…,N, N is a positive integer, and N represents the number of time domain resources. That is, each combination of time domain resource and first reference signal is associated with a set of power control parameters, power control parameter P O,PSFCH,k,n and α PSFCH,k,n The subscripts k and n represent the power control parameters and time domain resources TR n and the first reference signal RS k For another example, taking the power control parameters associated with the first reference signal including the target received power, the compensation factor of the downlink path loss and the second reference signal for determining the downlink path loss as an example, the power control parameter information includes the first reference signal RS k And in the time domain resource TR n The first reference signal RS k Associated target receiving power O,PSFCH,k,n , Downlink path loss compensation factor α PSFCH,k,n and a second reference signal R for determining the downlink path loss PSFCH,k,n , power control parameter P O,PSFCH,k,n , α PSFCH,k,n and R PSFCH,k,n The subscripts k and n represent the power control parameters and time domain resources TR n and the first reference signal RSk Association (or correspondence).

[0057] For example, assuming TR n It includes one or more time slots, K=2, N=2, TR1 consists of time slots with even indexes, and TR2 consists of time slots with odd indexes. Then the power control parameter associated with the first reference signal RS1 corresponding to TR1 is P O,PSFCH,1,1 and α PSFCH,1,1 , the power control parameter associated with the first reference signal RS2 corresponding to TR1 is P O,PSFCH,2,1 and α PSFCH,2,1 ; The power control parameter associated with the first reference signal RS1 corresponding to TR2 is P O,PSFCH,1,2 and α PSFCH,1,2 , the power control parameter associated with the first reference signal RS2 corresponding to TR2 is P O,PSFCH,2,2 and α PSFCH,2,2 .TR n It may also include the resources occupied by SL transmission (or PSFCH) in one or more time slots.

[0058] In some embodiments, the second reference signal used to determine the downlink path loss includes at least one of the following:

[0059] Downlink channel state information reference signal; downlink channel state information interference measurement signal; downlink demodulation reference signal; downlink synchronization signal block.

[0060] In some embodiments, the power control parameter information indicates the first reference signal by at least one of the following:

[0061] The transmission configuration indicator state (TCI state) of the communication link between the terminal and the network side; the transmission configuration indicator state of the side link; the reference signal index.

[0062] In some embodiments, the network side may refer to a base station, a higher-layer entity, or other network-side entities, and the TCI state between the terminal and the network side may refer to the TCI state of the Uu link.

[0063] In some embodiments, the terminal may report the side link reference signal resource configuration of the terminal to the network side, or the network side may configure the side link reference signal resource for the terminal.

[0064] In some embodiments, the network side provides time domain resource configuration for the UE, where the time domain resource configuration is used to indicate one or more time domain resources and the index of each time domain resource, and the power control parameter information indicates at least one time domain resource by indicating at least one time domain resource index; or the power control parameter information directly indicates at least one time domain resource.

[0065] In some embodiments, the network side sends power control parameter information to the terminal through high-layer signaling, where the high-layer signaling can be radio resource control (RRC) signaling, medium access control (MAC) signaling, or system messages, etc., which is not limited in the embodiments of the present disclosure.

[0066] Step S102: Determine a first beam and a first PSFCH set.

[0067] The first PSFCH set is a subset of the scheduled PSFCH set, and the scheduled PSFCH set includes at least one scheduled PSFCH. The first beam covers the transmit beam of each PSFCH in the first PSFCH set. That is, the first PSFCH set may include all or part of the PSFCHs in the scheduled PSFCH set whose transmit beams are covered by the first beam.

[0068] As a possible implementation manner, the first beam and the first PSFCH set are determined according to at least one of the priority of the PSFCH in the scheduled PSFCH set, the transmit beam, and the transmission content.

[0069] As an example, the first beam can be determined to be a beam that covers the transmission beam of the S highest priority PSFCHs in the scheduled PSFCH set, where S is a positive integer and S is less than or equal to the number of PSFCHs in the scheduled PSFCH set.

[0070] As an example, the first beam can be determined to be the transmit beam of the highest-priority PSFCH in the scheduled PSFCH set. If there are multiple transmit beams for the highest-priority PSFCH, the terminal can select one of the multiple transmit beams for the highest-priority PSFCH as the first beam. The disclosed embodiments do not limit the manner in which the first beam is determined.

[0071] As an example, for the N PSFCHs in the scheduled PSFCH set whose transmit beams are covered by the first beam, the N PSFCHs can be sorted according to their respective priorities and / or transmission contents, and the first X PSFCHs in the sorted sequence of the N PSFCHs are selected to form the first PSFCH set, where N and X are both positive integers, and X is less than N or not greater than N.

[0072] Step S103: Determine the power control parameter to be used according to the power control parameter information and the first beam.

[0073] As a possible implementation, a power control parameter to be used is determined based on the relationship between the first beam and the second beam corresponding to the first reference signal (the power control parameter to be used can be understood as a power control parameter used to calculate the transmission power of the PSFCH, or referred to as a target power control parameter). As an example, when a target first reference signal exists in the first reference signal, the power parameter to be used is determined based on the power control parameter associated with the target first reference signal. Alternatively, when the target first reference signal does not exist in the first reference signal, the power control parameter to be used is determined to be a default power control parameter.

[0074] In some embodiments, the default power control parameter includes at least one of the following: a configured power control parameter, a preconfigured power control parameter, a predefined power control parameter, a power control parameter associated with a specific first reference signal included in the power control parameter information; or a specific power control parameter included in the power control parameter information.

[0075] As an example, the specific first reference signal or the specific power control parameter may be determined through preconfiguration or predefinition, or may be indicated through indication information. For example, the predefined specific first reference signal is the first reference signal with the smallest index among the first reference signals included in the power control parameter information; the predefined specific power control parameter is the first parameter among each power control parameter included in the power control parameter information. For example, if the power control information includes three target received powers and three downlink path loss compensation factors, the specific power control parameter is the first target received power among the three target received powers and the first downlink path loss compensation factor among the three downlink path loss compensation factors. The indication information may or may not be included in the power control parameter information.

[0076] In some embodiments, when there are multiple target first reference signals in the first reference signal, determining the power parameter to be used based on the power control parameter associated with the target first reference signal includes: determining a target first reference signal from the multiple target first reference signals, and determining the power control parameter associated with the determined target first reference signal as the power control parameter to be used. The determined target first reference signal may be any one of the multiple target first reference signals; or the determined target first reference signal may be the target first reference signal with the highest priority among the multiple target first reference signals.

[0077] As an example, the priority of the target first reference signal can be determined based on the overlap area between the second beam and the first beam corresponding to the target first reference signal. The larger the overlap area, the higher the priority; the smaller the overlap area, the lower the priority.

[0078] As another example, the priority of the target first reference signal can be determined based on the angle between the second beam corresponding to the target first reference signal and the first beam. The smaller the angle, the higher the priority; the larger the angle, the lower the priority.

[0079] As another example, the priority of the target first reference signal is determined by the terminal, or the terminal selects a target first reference signal from multiple target first reference signals, which is not limited in the embodiments of the present disclosure.

[0080] In some embodiments, the power control parameter associated with the first reference signal includes a power control parameter associated with the first reference signal on at least one time domain resource. Based on this, determining the power control parameter to be used based on the power control parameter associated with the target first reference signal includes: determining, among the power control parameters associated with the target first reference signal, a power control parameter associated with the time domain resource to which the time slot or transmission opportunity of the scheduled PSFCH set belongs as the power control parameter to be used.

[0081] The second beam and the first beam corresponding to the above-mentioned target first reference signal meet the preset conditions. Exemplarily, the preset conditions include at least one of the following: the second beam and the first beam overlap in space; the area of ​​spatial overlap between the second beam and the first beam is greater than or equal to the first threshold; the ratio between the area of ​​spatial overlap between the second beam and the first beam and the coverage area of ​​the first beam is greater than or equal to the second threshold; the ratio between the area of ​​spatial overlap between the second beam and the first beam and the coverage area of ​​the second beam is greater than or equal to the third threshold; the angle between the second beam and the first beam is less than or equal to the fourth threshold; the second beam and the first beam have the same spatial filtering. The first threshold, the second threshold, the third threshold and the fourth threshold can all be configured or preconfigured or predefined, and the embodiments of the present disclosure do not impose any restrictions on this.

[0082] For example, assuming that the first reference signal RS k The corresponding beam is Beam k , the first beam is Beam tx , can be obtained from RS k (k=1,2,…,K) to determine whether there is a Beam tx The target first reference signal that meets the preset conditions can be obtained from RS k Determine if there is a connection with Beam tx The target first reference signal with the same spatial filtering. Assume RS k Medium RS m Corresponding beam m With Beam tx With the same spatial filtering, RS can be determined m As the target first reference signal, RS m The associated power control parameters are used as the power control parameters to be used. Assume that RS k There is no Beam tx The target first reference signal with the same spatial filtering may determine the power control parameter to be used as the default power control parameter. For example, the default power control parameter may be RS k The power control parameters associated with a specific first reference signal (eg, RS1) in the .

[0083] In some embodiments, the second beam corresponding to the first reference signal refers to a beam used when sending or receiving the first reference signal.

[0084] As an example, the second beam corresponding to the first reference signal includes at least one of the following:

[0085] When the first reference signal is a downlink reference signal, the second beam corresponding to the first reference signal is a receiving beam of the first reference signal;

[0086] When the first reference signal is an uplink reference signal or a sidelink reference signal, the second beam corresponding to the first reference signal is a transmit beam of the first reference signal.

[0087] Step S104: Determine the second PSFCH set and the transmission power of each PSFCH in the second PSFCH set according to the power control parameter to be used and the first PSFCH set.

[0088] The second PSFCH set is a subset of the first PSFCH set, that is, the second PSFCH set includes part or all of the PSFCHs in the first PSFCH set.

[0089] The following describes step S104 with reference to an example.

[0090] Example 1: The power control parameter associated with the first reference signal includes a target received power and a compensation factor for a downlink path loss.

[0091] As an example, the power control parameter information includes a first reference signal RS k and the first reference signal RS k The associated power control parameters (i.e. target received power P O,PSFCH,k and the compensation factor α for downlink path loss PSFCH,k , where k = 1, 2, ..., K).

[0092] Based on this, in the PSFCH transmission opportunity i, the power control parameter to be used is the first reference signal RS m (ie, the target first reference signal) associated power control parameter as an example, the transmission power P of each PSFCH in the second PSFCH set PSFCH,l′ (i) can be determined in the following way (where 1≤k′≤N Tx,PSFCH , N Tx,PSFCH is the number of PSFCHs included in the second PSFCH set):

[0093] P PSFCH,one =P O,PSFCH,m +10log 10 (2 μ )+α PSFCH,m PL [dBm];

[0094] Among them, P PSFCH,one is the reference transmission power, P O,PSFCH,m is the first reference signal RS m The target received power in the associated power control parameter, α PSFCH,m Represents the first reference signal RS m The compensation factor for downlink path loss in the associated power control parameters.

[0095] If P PSFCH,one +10log 10 (X)≤P CMAX , then N Tx,PSFCH =X (ie, the second PSFCH set is the same as the first PSFCH set) and P PSFCH,k′ (i) = P PSFCH,one Wherein, X is the number of PSFCHs included in the first PSFCH set.

[0096] Otherwise (i.e. P PSFCH,one +10log 10 (X)>P CMAX), the UE autonomously determines (or selects) N from the first PSFCH set according to the priority of PSFCH, the transmission content of PSFCH, etc. Tx,PSFCH PSFCH (i.e., the second PSFCH set), and P PSFCH,k′ (i) = min(P CMAX -10log 10 (N Tx,PSFCH ),P PSFCH,one ).

[0097] As another example, the power control parameter information includes a first reference signal RS k and the first reference signal RS k The associated power control parameters (i.e., target received power and downlink path loss compensation factor), and the power control parameters associated with the first reference signal include the first reference signal in the time domain resource TR n The power control parameter associated with the time domain resource and the first reference signal, that is, the power control parameter information includes the power control parameter associated with the time domain resource and the first reference signal: the target received power P O,PSFCH,k,n and the compensation factor α for downlink path loss PSFCH,k,n , where k = 1, 2,…, K, n = 1, 2,…, N.

[0098] Based on this, in the PSFCH transmission opportunity i, the time domain resource TR to which the UE is scheduled or the transmission opportunity belongs is the time slot of the PSFCH to which the UE is scheduled with the power control parameter to be used. t (TR t It is the time domain resource TR n , n=1,2,…,N, a time domain resource) corresponding to the first reference signal RS m The associated power control parameter (ie the power control parameter to be used is the power control parameter associated with the time domain resource TR t and the first reference signal RS m As an example, the transmission power P of each PSFCH in the second PSFCH set is PSFCH,k′ (i) It may be determined in the following ways:

[0099] P PSFCH,one =P O,PSFCH,m,t +10log 10 (2 μ )+α PSFCH,m,t PL [dBm]; where P O,PSFCH,m,t For time domain resources TR t and the first reference signal RS m The target received power in the associated power control parameter, α PSFCH,m,t For time domain resources TR t and the first reference signal RS mThe compensation factor for downlink path loss in the associated power control parameters.

[0100] If P PSFCH,one +10log 10 (X)≤P CMAX , then N Tx,PSFCH =X (ie, the second PSFCH set is the same as the first PSFCH set) and P PSFCH,k′ (i) = P PSFCH,one Wherein, X is the number of PSFCHs included in the first PSFCH set.

[0101] Otherwise (i.e. P PSFCH,one +10log 10 (X)>P CMAX ), the UE autonomously determines (or selects) N from the first PSFCH set according to the priority of PSFCH, the transmission content of PSFCH, etc. Tx,PSFCH PSFCH (i.e., the second PSFCH set), and P PSFCH,k′ (i) = min(P CMAX -10log 10 (N Tx,PSFCH ),P PSFCH,one ).

[0102] As a possible example, when the UE is not provided with power control parameter information, P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ); where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0103] As another possible example, when the UE is not provided with power control parameter information, if the UE is provided with a receiving end target power based on DL path loss power control (for example, the UE is provided with a higher layer parameter dl-P0-PSFCH), the UE determines the final number of PSFCHs to be sent N according to the above step (1). Tx,PSFCH and the transmission power P of PSFCH transmission k′ PSFCH,k′ (i), 1≤k′≤N Tx,PsFCH Otherwise (for example, the UE is not provided with the higher layer parameter d1-P0-PSFCH), P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ), where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0104] Example 2: The power control parameters associated with the first reference signal include a target received power, a compensation factor for a downlink path loss, and a second reference signal for determining the downlink path loss.

[0105] As an example, the power control parameter information includes a first reference signal RS k and the first reference signal RS k The associated power control parameters (i.e. target received power P O,PSFCH,k , compensation factor α for downlink path loss PSFCH,k and a second reference signal R for determining the downlink path loss PSFCH,k , where k = 1, 2, ..., K).

[0106] Based on this, in the PSFCH transmission opportunity i, the power control parameter to be used is the first reference signal RS k (where k=1, 2, ..., K) in the first reference signal RS m For example, the transmission power P of each PSFCH in the second PSFCH set is PSFCH,k′ (i) It may be determined in the following ways:

[0107] P PSFCH,one =P O,PSFCH,m +10log 10 (2 μ )+α PSFCH,m PL(R PSFCH,m )[dBm]; where PL(R PSFCH,m ) is based on the second reference signal R PSFCH,m Calculated downlink path loss, R PSFCH,m is the first reference signal RS m A second reference signal for determining a downlink path loss in the associated power control parameter.

[0108] If P PSFCH,one +10log 10 (X)≤P CMAX , then N Tx,PSFCH =X (ie, the second PSFCH set is the same as the first PSFCH set) and P PSFCH,k′ (i) = P PSFCH,one Wherein, X is the number of PSFCHs included in the first PSFCH set.

[0109] Otherwise (i.e. P PSFCH,one +10log 10 (X)>P CMAX ), the UE autonomously determines (or selects) N from the first PSFCH set according to the priority of PSFCH, the transmission content of PSFCH, etc. Tx,PSFCHPSFCH (i.e., the second PSFCH set), and P PSFCH,k′ (i) = min(P CMAX -10log 10 (N Tx,PSFCH ),P PSFCH,one ).

[0110] As another example, the power control parameter information includes a first reference signal RS k and the first reference signal RS k The associated power control parameters (i.e., target received power, downlink path loss compensation factor, and a second reference signal for determining downlink path loss), and the power control parameters associated with the first reference signal include the first reference signal in the time domain resource TR n The power control parameter associated with the target received power P is the power control parameter information including the power control parameter associated with the time domain resource and the first reference signal: O,PSFCH,k,n , compensation factor α for downlink path loss PSFCH,k,n and a second reference signal R for determining the downlink path loss PSFCH,k,n , where k = 1, 2,…, K, n = 1, 2,…, N.

[0111] Based on this, in the PSFCH transmission opportunity i, the time domain resource TR to which the time slot (or time resource) of the PSFCH scheduled by the UE belongs is used as the power control parameter to be used. t (TR t It is the time domain resource TR n , n=1,2,…,N, a time domain resource) corresponding to the first reference signal RS m The associated power control parameter (ie the power control parameter to be used is the power control parameter associated with the time domain resource TR t and the first reference signal RS m As an example, the transmission power P of each PSFCH in the second PSFCH set is PSFCH,k( (i) It may be determined in the following ways:

[0112] P PSFCH,one =P O,PSFCH,m,t +10log 10 (2 μ )+α PSFCH,m,t PL(R PSFCH,m,t )[dBm]; where PL(R PSFCH,m,t ) is based on the second reference signal R PSFCH,m,t Calculated downlink path loss, R PtFCH,m,t For time domain resources TR t and the first reference signal RS m A second reference signal for determining a downlink path loss in the associated power control parameter.

[0113] If P PSFCH,one +10log 10 (X)≤P CMAX , then N Tx,PSFCH =X (ie, the second PSFCH set is the same as the first PSFCH set) and P PSFCH,k′ (i) = P PSFCH,one Wherein, X is the number of PSFCHs included in the first PSFCH set.

[0114] Otherwise (i.e. P PSFCH,one +10log 10 (X)>P CMAX ), the UE autonomously determines (or selects) N from the first PSFCH set according to the priority of PSFCH, the transmission content of PSFCH, etc. Tx,PSFCH PSFCH (i.e., the second PSFCH set), and P PSFCH,k′ (i) = min(P CMAX -10log 10 (N Tx,PSFCH ),P PSFCH,one ).

[0115] As a possible example, when the UE is not provided with power control parameter information,

[0116] P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ); where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0117] As another possible example, in the case where the UE is not provided with power control parameter information, if the UE is provided with a receiving end target power based on DL path loss power control (for example, the UE is provided with a higher layer parameter dl-P0-PSFCH), the UE determines the final number of PSFCHs to be sent N according to the above step (1). Tx,PSFCH and the transmission power P of PSFCH transmission k′ PSFCH,k′ (i), 1≤k′≤N Tx,PSFCH Otherwise (for example, the UE is not provided with the higher layer parameter d1-P0-PSFCH), P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ), where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0118] In some embodiments, the time slot (or transmission opportunity) of the PSFCH that the terminal does not expect to be scheduled does not belong to any time domain resource TR n ; Or, the terminal expects all time domain resources TR n The union of all time slots in the edge link resource pool or PSFCH resources in all time slots, n = 1, 2, ..., N; or, the time slot (or transmission opportunity) of the PSFCH scheduled by the terminal does not belong to any time domain resource TR n In the case of

[0119] P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ); where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0120] Alternatively, the time slot (or transmission opportunity) of the PSFCH scheduled by the terminal does not belong to the time domain resource TR n In the case of , if the UE is provided with a receiving end target power based on DL path loss power control (for example, the UE is provided with a high-layer parameter dl-P0-PSFCH), the UE determines the final number of PSFCHs to be sent N according to the above step (1) Tx,PSFCH and the transmission power P of PSFCH transmission k′ PSFCH,k( (i), 1≤k′≤N Tx,PSFCH Otherwise, P PSFCH,k′ (i) = P CMAX -10log 10 (N Tx,PSFCH ), where N Tx,PSFCH The UE makes its own selection based on the priority of the PSFCH and the transmission content of the PSFCH.

[0121] Based on the embodiment shown in FIG2 , the transmission power of each PSFCH in the second PSFCH set is determined based on the power control parameter to be used and the first PSFCH set, and the power control parameter to be used is determined based on the power control parameter information and the first beam, and the first beam covers the transmit beam of each PSFCH in the first PSFCH set, that is, the transmit beam of each PSFCH in the first PSFCH set is taken into account when determining the transmission power of each PSFCH in the second PSFCH set. It can be seen that the technical solution disclosed in the present invention takes into account the influence of the transmit beam on the transmission power of the PSFCH when determining the transmission power of the PSFCH, thereby improving the accuracy of determining the transmission power of the PSFCH, thereby reducing energy consumption and reducing interference to other transmissions while ensuring communication performance.

[0122] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between each node. It is understandable that each node, such as a terminal and a base station, includes a hardware structure and / or software module corresponding to the execution of each function in order to implement the above functions. Those skilled in the art should easily appreciate that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0123] The embodiments of the present disclosure can divide the terminal into functional modules according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0124] FIG3 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure. As shown in FIG3 , the communication device 20 includes an acquisition unit 201 and a processing unit 202 .

[0125] The communication device 20 may be the terminal or a chip in the terminal. When the communication device 20 is used to implement the functions of the terminal in the above embodiment, each unit is specifically used to implement the following functions.

[0126] An acquiring unit 201 is configured to acquire power control parameter information, where the power control parameter information includes a first reference signal and a power control parameter associated with the first reference signal;

[0127] The processing unit 202 is used to determine the first beam and the first physical side link feedback channel PSFCH set, where the first beam covers the transmit beam of each PSFCH in the first PSFCH set, and the first PSFCH set is a subset of the scheduled PSFCH set; determine the power control parameter to be used based on the power control parameter information and the first beam; determine the second PSFCH set and the transmission power of each PSFCH in the second PSFCH set based on the power control parameter to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

[0128] In some embodiments, the power control parameter includes at least one of the following: a target received power, a compensation factor for downlink path loss, and a second reference signal for determining downlink path loss.

[0129] In some embodiments, the processing unit 202 is specifically configured to determine the first beam and the first PSFCH set according to at least one of a priority of the PSFCH in the scheduled PSFCH set, a transmit beam, and a transmission content.

[0130] In some embodiments, the processing unit 202 is specifically used to determine the power control parameter to be used based on the power control parameter associated with the target first reference signal when there is a target first reference signal in the first reference signal, and the second beam corresponding to the target first reference signal and the first beam meet the preset conditions; or, when there is no target first reference signal in the first reference signal, determine that the power control parameter to be used is the default power control parameter.

[0131] In some embodiments, the preset condition includes at least one of the following:

[0132] The second beam overlaps with the first beam in space; the area of ​​spatial overlap between the second beam and the first beam is greater than or equal to the first threshold; the ratio of the area of ​​spatial overlap between the second beam and the first beam to the coverage area of ​​the first beam is greater than or equal to the second threshold; the ratio of the area of ​​spatial overlap between the second beam and the first beam to the coverage area of ​​the second beam is greater than or equal to the third threshold; the angle between the second beam and the first beam is less than or equal to the fourth threshold; the second beam and the first beam have the same spatial domain filtering.

[0133] In some embodiments, the processing unit 202 is configured to determine a target first reference signal from a plurality of target first reference signals, and determine a power control parameter associated with the determined target first reference signal as the power control parameter to be used.

[0134] In some embodiments, the target first reference signal determined is the target first reference signal with the highest priority among multiple target first reference signals; the priority is determined based on the overlapping area between the second beam corresponding to the target first reference signal and the first beam; or, the priority is determined based on the angle between the second beam corresponding to the target first reference signal and the first beam.

[0135] In some embodiments, the power control parameter associated with the first reference signal includes a power control parameter associated with the first reference signal on at least one time domain resource.

[0136] In some embodiments, the processing unit 202 is specifically configured to determine, among the power control parameters associated with the target first reference signal, a power control parameter associated with the time domain resource to which the time slot or transmission opportunity of the scheduled PSFCH set belongs as the power control parameter to be used.

[0137] In some embodiments, the default power control parameter includes at least one of the following: a configured power control parameter; a preconfigured power control parameter; a predefined power control parameter; a power control parameter associated with a specific first reference signal included in the power control parameter information; or a specific power control parameter included in the power control parameter information.

[0138] In some embodiments, the second beam corresponding to the first reference signal refers to a beam used when sending or receiving the first reference signal.

[0139] As an example, the second beam corresponding to the first reference signal includes at least one of the following: when the first reference signal is a downlink reference signal, the second beam corresponding to the first reference signal is a receiving beam of the first reference signal; when the first reference signal is an uplink reference signal or a side link reference signal, the second beam corresponding to the first reference signal is a transmitting beam of the first reference signal.

[0140] In some embodiments, the first reference signal includes at least one of the following: a downlink channel state information reference signal; a downlink channel state information interference measurement signal; a downlink demodulation reference signal; an uplink demodulation reference signal; a sounding reference signal; a downlink phase tracking reference signal; a random access channel signal; a downlink synchronization signal block; a downlink positioning reference signal; a side link channel state information reference signal; a side link demodulation reference signal; a side link phase tracking reference signal; a side link positioning reference signal; and a side link synchronization signal block.

[0141] In some embodiments, the power control parameter information indicates the first reference signal through at least one of the following: a transmission configuration indication state of a communication link between the terminal and the network side; a transmission configuration indication state of a side link; a reference signal index.

[0142] In some embodiments, the second reference signal includes at least one of the following: a downlink channel state information reference signal; a downlink channel state information interference measurement signal; a downlink demodulation reference signal; and a downlink synchronization signal block.

[0143] If the various units in Figure 3 are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or 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 a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0144] In the case of implementing the functions of the above-mentioned integrated modules in hardware, an embodiment of the present disclosure provides a schematic structural diagram of a communication device, which may be the above-mentioned communication device 20. As shown in Figure 4, the communication device 30 includes: a processor 302, a communication interface 303, and a bus 304. Optionally, the communication device 30 may also include a memory 301.

[0145] Processor 302 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 302 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 302 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0146] The communication interface 303 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0147] The memory 301 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0148] As a possible implementation, the memory 301 may exist independently of the processor 302. The memory 301 may be connected to the processor 302 via a bus 304 and used to store instructions or program codes. When the processor 302 calls and executes the instructions or program codes stored in the memory 301, the transmission power determination method provided in the embodiment of the present disclosure can be implemented.

[0149] In another possible implementation, the memory 301 and the processor 302 may also be integrated together.

[0150] Bus 304 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 304 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG4 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0151] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above models is used as an example. In actual applications, the above functions can be allocated to different models as needed, that is, the internal structure of the base station or terminal can be divided into different models to complete all or part of the functions described above.

[0152] The embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to instruct relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be the memory of any of the above-mentioned embodiments. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned base station or terminal, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned base station or terminal. Furthermore, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned base station or terminal and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned base station or terminal. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0153] An embodiment of the present disclosure further provides a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the transmission power determination methods provided in the above embodiments.

[0154] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0155] Although the present disclosure has been described with reference to specific features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations if they fall within the scope of the claims of the present disclosure and their equivalents.

[0156] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for determining transmission power, wherein: The method comprises: Acquire power control parameter information, where the power control parameter information includes a first reference signal and a power control parameter associated with the first reference signal; Determine a first beam and a first physical side link feedback channel PSFCH set, wherein the first beam covers a transmit beam of each PSFCH in the first PSFCH set, and the first PSFCH set is a subset of the scheduled PSFCH set; Determining a power control parameter to be used according to the power control parameter information and the first beam; According to the power control parameter to be used and the first PSFCH set, a second PSFCH set and the transmission power of each PSFCH in the second PSFCH set are determined; wherein the second PSFCH set is a subset of the first PSFCH set.

2. The method according to claim 1, wherein: The power control parameter includes at least one of the following: a target received power, a compensation factor of a downlink path loss, and a second reference signal for determining the downlink path loss.

3. The method according to claim 1, wherein: The determining of the first beam and the first physical side link feedback channel PSFCH set includes: The first beam and the first PSFCH set are determined according to at least one of the priority of the PSFCH in the scheduled PSFCH set, the transmit beam, and the transmission content.

4. The method according to claim 1, wherein: The determining, according to the power control parameter information and the first beam, a power control parameter to be used includes: The power control parameter to be used is determined according to a relationship between the first beam and a second beam corresponding to the first reference signal.

5. The method according to claim 4, wherein: The determining, according to a relationship between the first beam and a second beam corresponding to the first reference signal, the power control parameter to be used includes: In a case where a target first reference signal exists in the first reference signal, determining the power control parameter to be used according to a power control parameter associated with the target first reference signal, and the second beam corresponding to the target first reference signal and the first beam satisfy a preset condition; or In a case where the target first reference signal does not exist in the first reference signal, the power control parameter to be used is determined to be a default power control parameter.

6. The method according to claim 5, wherein: The preset condition includes at least one of the following: The second beam spatially overlaps with the first beam; The spatial overlap area between the second beam and the first beam is greater than or equal to a first threshold; A ratio between an area where the second beam overlaps the first beam in space and an area covered by the first beam is greater than or equal to a second threshold; A ratio between an area where the second beam overlaps the first beam in space and an area covered by the second beam is greater than or equal to a third threshold; The angle between the second beam and the first beam is less than or equal to a fourth threshold; The second beam has the same spatial filtering as the first beam.

7. The method according to claim 5, wherein: There are multiple target first reference signals in the first reference signal, and determining the power control parameter to be used according to the power control parameter associated with the target first reference signal includes: A target first reference signal is determined from a plurality of target first reference signals, and a power control parameter associated with the determined target first reference signal is determined as the power control parameter to be used.

8. The method according to claim 7, wherein: The determined target first reference signal is the target first reference signal with the highest priority among the multiple target first reference signals; The priority is determined based on an overlapping area between the second beam corresponding to the target first reference signal and the first beam; or, the priority is determined based on an angle between the second beam corresponding to the target first reference signal and the first beam.

9. The method according to claim 5, wherein: The power control parameter associated with the first reference signal includes a power control parameter associated with the first reference signal on at least one time domain resource; The determining, according to the power control parameter associated with the target first reference signal, the power control parameter to be used includes: Among the power control parameters associated with the target first reference signal, the power control parameter associated with the time domain resource to which the time slot or transmission opportunity of the scheduled PSFCH set belongs is determined as the power control parameter to be used.

10. The method according to claim 5, wherein: The default power control parameter includes at least one of the following: Configured power control parameters; Preconfigured power control parameters; Predefined power control parameters; A power control parameter associated with a specific first reference signal included in the power control parameter information; The power control parameter information includes specific power control parameters.

11. The method according to claim 1, wherein: In the case where the first reference signal is a downlink reference signal, the second beam corresponding to the first reference signal is a receiving beam of the first reference signal; or, In the case where the first reference signal is an uplink reference signal or a sidelink reference signal, the second beam corresponding to the first reference signal is a transmission beam of the first reference signal.

12. The method according to claim 1, wherein: The first reference signal includes at least one of the following: Downlink channel state information reference signal; Downlink channel state information interferes with the measurement signal; Downlink demodulation reference signal; Uplink demodulation reference signal; detecting a reference signal; Downlink phase tracking reference signal; Random access channel signal; Downlink synchronization signal block; Downlink positioning reference signal; Channel state information reference signal for the side link; Demodulation reference signal of the side link; Phase tracking reference signal for side links; Positioning reference signal for edge link; The synchronization signal block of the side link.

13. The method according to claim 1, wherein: The power control parameter information indicates the first reference signal by at least one of the following: The transmission configuration indication status of the communication link between the terminal and the network side; a transmission configuration indication state of the edge link; Reference signal index.

14. The method according to claim 2, wherein: The second reference signal includes at least one of the following: Downlink channel state information reference signal; Downlink channel state information interferes with the measurement signal; Downlink demodulation reference signal; Downlink synchronization signal block.

15. A communication device, wherein: The method comprises a memory, a processor, and computer program instructions stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 14 when executing the computer program instructions.

16. A computer-readable storage medium, wherein: The computer-readable storage medium comprises computer program instructions; wherein, when the computer program instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 14.

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