CN117956584A

CN117956584A - Transmission power determining method, device and storage medium

Info

Publication number: CN117956584A
Application number: CN202311733811.8A
Authority: CN
Inventors: 苗婷; 卢有雄; 陈杰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-04-30

Abstract

The embodiment of the disclosure provides a transmission power determining method, a transmission power determining device and a storage medium, relates to the technical field of communication, and is used for improving the accuracy of determining PSFCH transmission power. The method comprises the following steps: acquiring power control parameter information, wherein the power control parameter information comprises a first reference signal and power control parameters associated with the first reference signal; determining a first set of beams and a first set of physical side link feedback channels PSFCH, the first beam covering transmit beams of each PSFCH of the first set PSFCH, the first set PSFCH being a subset of the set PSFCH that is scheduled; determining a power control parameter to be used according to the power control parameter information and the first wave beam; determining a transmission power of each PSFCH in the second PSFCH set and the second PSFCH set according to the power control parameters to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

Description

Transmission power determining method, device and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a transmission power determining method, a device and a storage medium.

Background

In a Sidelink (SL) communication system, when there is a service between User Equipments (UEs) that needs to be transmitted, the service between UEs may be directly transmitted from a UE at a transmitting end to a UE at a receiving end through the sidelink without being forwarded by a base station. For a near field communication user capable of applying SL communication, the SL communication not only saves wireless spectrum resources, but also reduces data transmission pressure of a core network, can reduce system resource occupation, increases spectrum efficiency of a cellular communication system, reduces communication delay, and can save network operation cost.

However, the accuracy of determining the transmission power of the physical side link feedback channel (PHYSICAL SIDELINK feedback channel, PSFCH) is currently low, resulting in either too high or too low side link transmission power. The transmission power is too high, which may cause higher energy consumption and cause interference to other transmissions; too low a transmission power may cause insufficient power to support decoding at the receiving end, and communication performance cannot be guaranteed.

Disclosure of Invention

The embodiment of the disclosure provides a transmission power determining method, a device and a storage medium, which are used for improving the accuracy of determining PSFCH transmission power.

In order to achieve the above purpose, the present disclosure adopts the following technical scheme:

in a first aspect, a transmission power determining method is provided, the method comprising:

acquiring power control parameter information, wherein the power control parameter information comprises a first reference signal and power control parameters associated with the first reference signal;

Determining a first set of beams and a first set of physical side link feedback channels PSFCH, the first beam covering transmit beams of each PSFCH of the first set PSFCH, the first set PSFCH being a subset of the set PSFCH that is scheduled;

determining a power control parameter to be used according to the power control parameter information and the first wave beam;

Determining a transmission power of each PSFCH in the second PSFCH set and the second PSFCH set according to the power control parameters to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

In a second aspect, there is provided a communication apparatus comprising:

The power control device comprises an acquisition unit, a power control unit and a control unit, wherein the acquisition unit is used for acquiring power control parameter information, and the power control parameter information comprises a first reference signal and a power control parameter associated with the first reference signal;

A processing unit configured to determine a first set of physical side link feedback channels PSFCH and a first set of beams, the first set of beams covering transmit beams of each PSFCH of the first set PSFCH, the first set PSFCH being a subset of the set PSFCH that is scheduled;

The processing unit is further used for determining a power control parameter to be used according to the power control parameter information and the first wave beam;

The processing unit is further configured to determine, according to the power control parameter to be used and the first PSFCH set, a transmission power of each PSFCH in the second PSFCH set and the second PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

In a third aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory stores instructions executable by the processor; the processor is configured to execute the instructions to cause the communication device to implement the method as provided in the first aspect described above.

In a fourth aspect, there is provided a computer readable storage medium storing computer instructions that, when run on a computer, cause the computer to perform the method provided by the first aspect.

In a fifth aspect, there is provided a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method provided in the first aspect.

In the disclosed embodiment, the transmission power of each PSFCH in the second set PSFCH is determined based on the power control parameters to be used and the first set PSFCH, and the power control parameters to be used are determined based on the power control parameter information and the first beam, and the first beam covers the transmission beam of each PSFCH in the first set PSFCH, that is, the transmission beam of each PSFCH in the first set PSFCH is considered when determining the transmission power of each PSFCH in the second set PSFCH. Therefore, the technical scheme of the disclosure considers the influence of the transmitting beam on the transmission power of PSFCH when determining the transmission power of PSFCH, and improves the accuracy of determining the transmission power of PSFCH, thereby reducing the energy consumption and the interference on other transmissions while ensuring the communication performance.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the disclosed embodiments.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the disclosure;

Fig. 2 is a flow chart of a transmission power determining method according to an embodiment of the disclosure;

Fig. 3 is a schematic diagram of a communication device according to an embodiment of the disclosure;

Fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and its other forms such as the third person referring to the singular form "comprise" and the present word "comprising" are to be construed as open, inclusive meaning, i.e. as "comprising, but not limited to. In the description of the specification, the terms "one embodiment", "some embodiments (some embodiments)", "exemplary embodiment (exemplary embodiments)", "example (example)", "specific example (some examples)", etc. are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the presently disclosed embodiments, the words "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in the examples of this disclosure should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In addition, the use of "based on" is intended to be open and inclusive in that a process, step, calculation, or other action "based on" one or more of the stated conditions or values may be based on additional conditions or beyond the stated values in practice.

The side link communication may also be referred to as a side link communication, a direct communication, or a side link communication, or a PC5 interface link communication, or an inter-terminal device link communication. The side link communication is a wireless communication directly performed between a plurality of UEs (e.g., two UEs). In the side link communication, a plurality of UEs geographically close to each other can directly communicate. Data transmission in direct communication is different from typical cellular network communication. Typical cellular network communications include Uplink (UL) transmissions (e.g., UE sending data to base station) and downlink transmissions (e.g., base station sending data to UE), the interface between the base station and the UE being commonly referred to as the Uu interface; in the side link communication, however, data is transmitted directly from the UE at the transmitting end to the UE at the receiving end through an air interface such as a PC5 interface, without passing through any network device. The side link communication means includes, but is not limited to, device-to-device (D2D) communication, such as early warning communication of disasters such as earthquakes, fires, etc., vehicle-to-everything (V2X) communication, such as remote driving, unmanned driving, etc. The side link communications may provide various advantages such as reduced data transmission load on the core network, system resource consumption, transmission power consumption, and network operating costs, saving radio spectrum resources, and improving spectrum utilization of the cellular radio network system.

SL communication currently has two air interface technologies (i.e., radio access technology (radio access technology, RAT)), such as SL communication using the fourth generation mobile communication technology (the four-generation mobile communication technology, 4G) long term evolution (long term evolution, LTE) technology, and SL communication using the fifth generation mobile communication technology (the fifth-generation mobile communication technology, 5G) new air interface (NR) technology. And SL communication using the sixth generation mobile communication technology (the six-generation mobile communication technology, 6G) may occur in the future.

On licensed spectrum, for UEs based on the side link transmission in the cellular coverage, the side link transmission needs to ensure that the uplink transmission of the Uu interface is not interfered as much as possible, so for PSFCH, power control can be performed according to Downlink (DL) path loss (pathloss, PL) of the base station.

For example, in PSFCH transmission occasions i, the UE is scheduled with a total of N _sch,Tx,PSFCH PSFCHs, the maximum PSFCH number that the UE can simultaneously transmit is N _max,PSFCH, the UE determines that PSFCH that is simultaneously transmitted is N _Tx,PSFCH (i.e., the UE ultimately determines the PSFCH number that is transmitted), the transmission power of PSFCH transmission k' is P _PSFCH,k′(i),1≤k′≤N_Tx,PSFCH, and the maximum transmission power of the UE is P _CMAX.

Step (1): in the case where the power control parameters DL-P0-PSFCH are provided or configured (i.e. if the receiver target power based on DL path loss power control is provided or configured to the UE),

P_PSFCH,one＝P_O,PSFCH+10log₁₀(2^μ)+α_PSFCH·PL[dBm]；

Where P _PSFCH,one represents the reference transmission power, and P _O,PSFCH is a value provided by the parameter DL-P0-PSFCH, which can be understood as the target power (or target received power) of the receiving end based on DL path loss power control; alpha _PSFCH represents a compensation factor of the downlink loss; PL represents downlink loss; μ is a subcarrier spacing configuration, that is, a subcarrier spacing configuration corresponding to a partial Bandwidth (BWP) where PSFCH is located (or a subcarrier spacing configuration used by PSFCH).

The reference signal for calculating the downlink loss PL _D may be determined as follows: when the UE is configured to listen to a physical downlink control channel (physical downlink control channel, PDCCH) to detect downlink control information (downlink control information, DCI) format 0_0 in the serving cell, a reference signal for calculating DL path loss used when determining transmission power of a Physical Uplink Shared Channel (PUSCH) scheduled by DCI format 0_0 is employed as a reference signal for calculating downlink path loss PL _D. When the UE is not configured to listen to PDCCH to detect DCI format 0_0 in the serving cell, the UE is employed to acquire a synchronization signal block (synchronization signal block, SSB) of a master information block (masterinformationblock, MIB) as a reference signal for calculating downlink path loss PL _D.

If N _sch,Tx,PSFCH≤N_max,PSFCH, and P _PSFCH,one+10log₁₀(N_sch,Tx,PSFCH)≤P_CMAX is satisfied, then N _Tx,PSFCH＝N_sch,Tx,PSFCH, and P _PSFCH,k′(i)＝P_PSFCH,one.

If N _sch,Tx,PSFCH≤N_max,PSFCH, but P _PSFCH,one+10log₁₀(N_sch,Tx,PSFCH)≤P_CMAX is not satisfied, the UE autonomously determines (or selects) N _Tx,PSFCH PSFCH, and P _PSFCH,k′(i)＝min(P_CMAX-10log₁₀(N_Tx,PSFCH),P_PSFCH,one, according to the priority of PSFCH, the transmission content of PSFCH (e.g., the transmission content may be HARQ-ACK information, or collision information, etc.), and so on.

If N _sch,Tx,PSFCH＞N_max,PSFCH, the UE autonomously determines N _max,PSFCH pieces PSFCH according to the priority of PSFCH, the transmission content of PSFCH, if P _PSFCH,one+10log₁₀(N_max,PSFCH)≤P_CMAX, N _Tx,PSFCH＝N_max,PSFCH and P_PSFCH,k′(i)＝P_PSFCH,one, otherwise, autonomously selects N _Tx,PSFCH pieces PSFCH according to the priority of PSFCH, the transmission content of PSFCH, and P _PSFCH,k′(i)＝min(P_CMAX-10log₁₀(N_Tx,PSFCH),P_PSFCH,one).

Step (2): in the case where the power control parameters DL-P0-PSFCH are not provided or configured (i.e. if the receiver target power based on DL path loss power control is provided or configured to the UE),

P_PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH)；

Wherein N _Tx,PSFCH is autonomously selected by the UE according to the priority of PSFCH, the transmission content of PSFCH.

It should be noted that, in the above description, step (1) and step (2) represent different operations in the transmission power determining process of the transmission k' of PSFCH in the transmission timing i of PSFCH, and do not represent the sequence of the different operations.

The SL communication may operate in a millimeter wave band (e.g., frequency domain range2 (FR 2)), and since the millimeter wave band has a shorter wavelength and a higher propagation loss, introducing a beam may overcome the path loss caused by high frequency transmission, and increase the coverage area of the SL communication. The third generation partnership project (3rd generation partnership project,3GPP) is now standing on beam management for SL unicast communications. However, as can be seen from the foregoing, in the related art, the SL power control parameter does not consider the influence of the beam, especially the power control parameter based on the downlink loss does not consider the influence of the beam, which results in lower accuracy of the currently determined transmission power PSFCH, so that the transmission power of the sidelink is too high or too low, the transmission power is too high, which may cause higher energy consumption, cause interference to other transmissions, and the transmission power is too low, which may cause insufficient power to support decoding of the receiving end, and cannot guarantee the communication performance.

Based on this, the embodiments of the present disclosure provide a transmission power determining method, apparatus and storage medium, which increase accuracy of determining the transmission power PSFCH by considering the influence of the transmission beam on the transmission power PSFCH when determining the transmission power PSFCH, so as to reduce energy consumption and interference to other transmissions while ensuring communication performance.

Embodiments of the present application will be described below with reference to the accompanying drawings.

The technical solution provided by the embodiments of the present disclosure may be applied to various mobile communication networks, for example, a SL communication network employing NR of 5G, a SL communication network using 4G LTE technology, a SL communication network using 6G that may occur in the future, and other future mobile communication networks or a SL communication network in various communication convergence systems, etc., which the embodiments of the present disclosure are not limited.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure. As shown in fig. 1, communication system 10 includes a plurality of base stations (e.g., base station 21 and base station 22) and a plurality of terminals (e.g., terminal 31, terminal 32, terminal 33, and terminal 34). Wherein the plurality of base stations and the plurality of terminals may be connected through a wired network or a wireless network. Wherein the wired or wireless network may include a router, switch, or other device that facilitates communication between a plurality of base stations and a plurality of terminals, as embodiments of the present disclosure are not limited in this regard.

In some embodiments, a base station is used to provide wireless access services for a plurality of terminals. Specifically, one base station provides one service coverage area (also may be referred to as a cell). Terminals entering the area may communicate with the base station via wireless signals to receive wireless access services provided by the base station. There may be overlap between the service coverage areas of the base stations and terminals within the overlap area may receive wireless signals from multiple base stations.

In some embodiments, each of the plurality of base stations may connect to a plurality of terminals, e.g., base station 21 connects terminal 31 and terminal 32. The terminal 31 and the terminal 32 may be located in the same cell, and the terminal 31 and the terminal 32 may be located in different cells. That is, one base station may provide network services to terminals of one cell, or may provide network services to terminals of a plurality of cells at the same time.

In some embodiments, each of the plurality of base stations (e.g., base station 21) may be any of an evolved node b (eNB), a next generation base station (generationnodeB, gNB), a transceiver Point (transmission receive Point, TRP), a transmission Point (transmission Point, TP), an Access Point (AP), and some other Access node. Base stations can be further divided into Macro base stations for providing Macro cells (Macro cells), micro base stations for providing micro cells (picocells), and Femto base stations for providing Femto cells (Femto cells) according to the size of the service coverage area provided. As wireless communication technology continues to evolve, future base stations may also be referred to by other names.

In some embodiments, each of the plurality of terminals (e.g., terminal 31) may be a device having wireless transceiving capabilities, such as a cell phone, tablet, wearable device, in-vehicle device, augmented reality (augmented reality, AR)/virtual reality (virtualreality, VR) device, notebook, ultra-mobilepersonal computer, UMPC, netbook, personal digital assistant (personal digitalassistant, PDA), or the like. The embodiment of the disclosure does not limit the specific kind of the terminal.

In some embodiments, communication may be made between terminals, such as terminal 31 and terminal 32 in fig. 1, and terminal 33 and terminal 34. The communication between terminals refers to communication directly performed between two terminals, and, taking device to device (D2D) communication as an example, a terminal performing D2D communication may be referred to as a D2D terminal, a link between two terminals performing D2D communication may be referred to as a pair of D2D links, and two terminals in the pair of D2D links may be a receiving end and a transmitting end. In one transmission, one of the terminals may be a transmitting end and the other terminal may be a receiving end. If both terminals support the simultaneous transceiving function, each D2D terminal may be both a transmitting end and a receiving end.

It should be understood that fig. 1 is an exemplary block diagram, and the communication system shown in fig. 1 includes no limitation in the number of devices, for example, the number of base stations and the number of terminals. The communication system shown in fig. 1 may include other devices in addition to the devices shown in fig. 1, and is not limited thereto.

The embodiment of the disclosure provides a transmission power determining method, which is applied to a terminal, as shown in fig. 2, and includes the following steps:

S101, acquiring power control parameter information.

The power control parameter information comprises a first reference signal and a power control parameter associated with the first reference signal.

As an example, the terminal acquires the power control parameter information, which may be the power control parameter information transmitted by the terminal receiving base station (or network side). Or the terminal acquires the power control parameter information, or the terminal receives the power control parameter signaling sent by the base station (or the network side), wherein the power control parameter signaling carries the power control parameter information.

As another example, the memory of the terminal stores pre-configured or predefined power control parameter information, and the terminal acquires the power control parameter information, which may be the terminal acquires the power control parameter information from the memory of the terminal.

In some embodiments, the first reference signal comprises at least one of:

a downlink channel state information reference signal (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS);

Downlink channel state information interference measurement signals (CHANNEL STATE information interference measurement signal, CSI-IM);

downlink demodulation reference signals (demodulation REFERENCE SIGNAL, DMRS);

An uplink demodulation reference signal;

sounding REFERENCE SIGNAL (SRS);

A phase tracking reference signal (PHASE TRACKING REFERENCE SIGNAL, PTRS);

a random access channel signal (RACH) ACCESS CHANNEL;

A downlink synchronization signal block (synchronization signal/Physical Broadcast Channel (PBCH) block, SSB);

Positioning Reference Signals (PRS) REFERENCE SIGNALS;

a side link channel state information reference signal;

A side link demodulation reference signal;

a sidelink phase tracking reference signal;

A side link positioning reference signal;

A side link synchronization signal block (sidelink synchronization signal/PHYSICAL SIDELINK Broadcast Channel (PSBCH) block, S-SSB).

In some embodiments, the power control parameter associated with the first reference signal comprises at least one of: the method comprises the steps of target receiving power, a compensation factor of downlink loss and a second reference signal for determining the downlink loss.

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.

For example, taking reference signals as RS as an example, the power control parameter information may include a first reference signal RS _k and a power control parameter associated with the first reference signal RS _k, where the power control parameter includes a parameter for calculating a transmission power requirement based on downlink loss, including a target received power P _O,PSFCH,k, a compensation factor α _PSFCH,k of the downlink loss, and a second reference signal R _pSFCH,k for determining the downlink loss, where k=1, 2. It should be noted that, in the case where the power control parameter information does not include the compensation factor of the downlink loss, the compensation factor of the downlink loss takes a default value, and the default value may be preconfigured or predefined, for example, α _PSFCH,k =1.

In some embodiments, the first reference signal is associated with one power control parameter on each time domain resource, taking as an example that the power control parameter associated with the first reference signal includes a target received power and a compensation factor of downlink loss, based on this, the power control parameter information includes a target received power P _O,PSFCH,k,n associated with the first reference signal RS _k corresponding to the time domain resource TR _n, a compensation factor of downlink loss α _PSFCH,k,n, or the power control parameter information includes the first reference signal RS _k and a target received power P _O,PSFCH,k,n associated with the first reference signal RS _k and a compensation factor of downlink loss α _PSFCH,k,n on the time domain resource TR _n. Where 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, k and n in the subscripts of power control parameters P _O,PSFCH,k,n and a _PSFCH,k,n indicate that the power control parameters are associated with (or correspond to) time domain resource TR _n and first reference signal RS _k. For another example, taking the case that the power control parameter associated with the first reference signal includes a target received power, a compensation factor of a downlink loss, and a second reference signal for determining a downlink loss, the power control parameter information includes the first reference signal RS _k and a target received power P _O,PSFCH,k,n associated with the first reference signal RS _k on the time domain resource TR _n, a compensation factor α _PSFCH,k,n of a downlink loss, and a second reference signal R _PSFCH,k,n for determining a downlink loss, and k and n in subscripts of the power control parameters P _O,PSFCH,k,n、α_PSFCH,k,n and R _PSFCH,k,n indicate that the power control parameter is associated with (or corresponds to) the time domain resource TR _n and the first reference signal RS _k.

Illustratively, assuming TR _n includes one or more slots, k=2, n=2, TR ₁ consists of even-indexed slots, and TR ₂ consists of odd-indexed slots. The power control parameter associated with the first reference signal RS ₁ corresponding to TR ₁ is P _O,PSFCH,1, the power control parameter associated with the first reference signal RS ₂ corresponding to 1 and α _PSFCH,1,1,TR₁ is P _O,PSFCH,2,1 and the power control parameter associated with the first reference signal RS ₁ corresponding to α _PSFCH,2,1;TR₂ is P _O,PSFCH,1,2 and the power control parameter associated with the first reference signal RS ₂ corresponding to α _PSFCH,1,2,TR₂ is P _O,PSFCH,2,2 and α _PSFCH,2,2.TR_n may also include resources occupied by the SL transmission (or PSFCH) in one or more slots.

In some embodiments, the second reference signal for determining the downlink loss comprises at least one of:

a downlink channel state information reference signal;

The downlink channel state information interferes with the measurement signal;

downlink demodulation reference signals;

A downlink synchronization signal block.

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

a transmission configuration indication state (transmission configuration indicator state, TCI state) of a communication link between the terminal and the network side;

The transmission configuration of the side link indicates the status;

Reference signal index.

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

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 configures the side link reference signal resource for the terminal.

In some embodiments, the network side provides a time domain resource configuration for the UE, the time domain resource configuration being used to indicate one or more time domain resources and an index for each time domain resource, the power control parameter information indicating 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.

In some embodiments, the network side sends the power control parameter information to the terminal through higher layer signaling, where the higher layer signaling may be radio resource control (radio resource control, RRC) signaling, medium access control (medium access control, MAC) signaling, or system message, etc., which is not limited by the embodiments of the disclosure.

S102, determining a first beam and a first PSFCH set.

Wherein the first PSFCH set is a subset of the scheduled PSFCH set, the scheduled PSFCH set includes at least one PSFCH that is scheduled. 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 PSFCH of the PSFCH of the scheduled PSFCH set where the transmit beam is covered by the first beam.

As one possible implementation, the first beam and the first set PSFCH are determined according to at least one of the priority, the transmit beam, and the transmission content of PSFCH in the set PSFCH that is scheduled.

As one example, the first beam may be determined to be the beam covering the highest priority S PSFCH transmit beams in the scheduled PSFCH set, S being a positive integer, and S being less than or equal to the number of PSFCH in the scheduled PSFCH set.

As one example, the first beam may be determined to be the highest priority PSFCH transmit beam of the set of PSFCH that is scheduled. In the case where the transmission beam of PSFCH having the highest priority is plural, one of the transmission beams of PSFCH having the highest priority may be selected as the first beam by the terminal. The embodiments of the present disclosure do not limit the manner in which the first beam is determined.

As an example, for N PSFCH of the scheduled PSFCH sets where the transmit beam is covered by the first beam, the first X PSFCH of the ordered sequence of N PSFCH is selected to form the first PSFCH set according to the respective priorities and/or transmissions of the N PSFCH, where N and X are positive integers, and X is less than N or not greater than N.

S103, determining a power control parameter to be used according to the power control parameter information and the first wave beam.

As a possible implementation, the power control parameter to be used is determined according to the relation between the first beam and the second beam corresponding to the first reference signal (the power control parameter to be used may be understood as a power control parameter for calculating PSFCH transmission power, or referred to as a target power control parameter). As an example, in case there is a target first reference signal in the first reference signals, a power parameter to be used is determined based on a power control parameter associated with the target first reference signal. Or in the case that the target first reference signal does not exist in the first reference signals, determining the power control parameter to be used as a default power control parameter.

In some embodiments, the default power control parameters include at least one of: the power control parameters are associated with the specific first reference signals contained in the configured power control parameters, the pre-defined power control parameters and the power control parameter information; the power control parameter information contains specific power control parameters.

As an example, the specific first reference signal or the specific power control parameter may be determined by a pre-configuration or a predefined manner, or may be indicated by indication information, e.g. the predefined specific first reference signal is the first reference signal with the smallest index among the first reference signals contained in the power control parameter information; the specific power control parameter is predefined as a first parameter in each power control parameter included in the power control parameter information, for example, the power control information includes 3 target received powers and 3 compensation factors of downlink losses, and the specific power control parameter is a first target received power in the 3 target received powers and a first compensation factor of downlink losses in the 3 compensation factors of downlink losses. The instruction information may or may not be included in the power control parameter information.

In some embodiments, in a case where there are a plurality of target first reference signals in the first reference signals, determining the power parameter to be used based on the power control parameter associated with the target first reference signals includes: one target first reference signal is determined from a plurality of target first reference signals, and the power control parameter associated with the determined target first reference signal is determined as the power control parameter to be used. Wherein the determined target first reference signal may be any one of a plurality of target first reference signals; or the determined target first reference signal may be the highest priority target first reference signal among the plurality of target first reference signals.

As one example, the priority of the target first reference signal may be determined based on an overlapping region of 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.

As another example, the priority of the target first reference signal may be determined based on an angle of a second beam corresponding to the target first reference signal with the first beam. The smaller the included angle, the higher the priority; the larger the angle, the lower the priority.

As another example, the priority of the target first reference signal is determined by the terminal implementation, or the terminal implementation selects one target first reference signal from a plurality of target first reference signals, which the disclosed embodiments do not limit.

In some embodiments, the power control parameter associated with the first reference signal comprises a power control parameter associated with the first reference signal on at least one time domain resource. Based on this, the above-mentioned determining the power control parameter to be used according to the power control parameter associated with the target first reference signal includes: and determining the power control parameter associated with the time domain resource to which the time slot or the transmission opportunity of the scheduled PSFCH set belongs from the power control parameters associated with the target first reference signal as the power control parameter to be used.

The second beam and the first beam corresponding to the target first reference signal meet a preset condition. Illustratively, the preset conditions include at least one of: the second beam spatially overlaps the first beam; the spatial overlapping area of the second beam and the first beam is greater than or equal to a first threshold; the ratio between the spatially overlapping region of the second beam and the first beam and the coverage area of the first beam is greater than or equal to a second threshold; a ratio between a spatially overlapping region of the second beam and the first beam and a coverage area of the second beam is greater than or equal to a third threshold; the included angle between the second beam and the first beam is smaller than or equal to a fourth threshold; the second beam has the same spatial filtering as the first beam. The first threshold, the second threshold, the third threshold, and the fourth threshold may all be configured or preconfigured or predefined, and embodiments of the present disclosure are not limited in this regard.

For example, assuming that the Beam corresponding to the first reference signal RS _k is Beam _k and the first Beam is Beam _tx, it may be determined from RS _k (k=1, 2..k) whether there is a target first reference signal satisfying a preset condition with Beam _tx. For example, it may be determined from RS _k whether there is a target first reference signal that has the same spatial filtering as Beam _tx. Assuming that Beam _m corresponding to RS _m in RS _k has the same spatial filtering as Beam _tx, it may be determined that RS _m is the target first reference signal, and the power control parameter associated with RS _m may be used as the power control parameter to be used. Assuming that there is no target first reference signal in RS _k that has the same spatial filtering as Beam _tx, the power control parameter to be used may be determined as a default power control parameter. For example, the default power control parameter may be a power control parameter associated with a particular first reference signal (e.g., RS ₁) in RS _k.

In some embodiments, the second beam corresponding to the first reference signal refers to a beam used when transmitting or receiving the first reference signal.

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

in the case that 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;

In the case that 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 transmission beam of the first reference signal.

And S104, determining the transmission power of each PSFCH in the second PSFCH set and the second PSFCH set according to the power control parameters to be used and the first PSFCH set.

Wherein the second PSFCH set is a subset of the first PSFCH set. That is, the second PSFCH set includes some or all PSFCH of the first PSFCH set.

Step S104 is described below in connection with an example.

Example 1, the first reference signal associated power control parameter includes a target received power and a compensation factor for downlink loss.

As an example, the power control parameter information includes a first reference signal RS _k and a power control parameter associated with the first reference signal RS _k (i.e., a target received power P _O,PSFCH,k and a compensation factor of downlink loss a _PSFCH,k, where k=1, 2, and).

Based on this, in PSFCH transmission occasions i, taking as an example that the power control parameter to be used is the power control parameter associated with the first reference signal RS _m (i.e. the target first reference signal), the transmission power P _PSFCH,k′ (i) of each PSFCH in the second PSFCH set can be determined in the following manner (where 1+.k' +.n _Tx,PSFCH,N_Tx,PSFCH is PSFCH number contained in the second PSFCH set):

P_PSFCH,one＝P_O,PSFCH,m+10log₁₀(2^μ)+α_PSFCH,m·PL[dBm]；

where P _PSFCH,one is the reference transmission power, P _O,PSFCH,m is the target received power in the power control parameter associated with the first reference signal RS _m, and α _PSFCH,m represents the compensation factor of the downlink loss in the power control parameter associated with the first reference signal RS _m.

If P _PSFCH,one+10log₁₀(X)≤P_CMAX, then N _Tx,PSFCH = X (i.e., the second PSFCH set and the first PSFCH set are the same) and P _PSFCH,k′(i)＝P_PSFCH,one. Wherein, X is PSFCH number contained in the first PSFCH set.

Otherwise (i.e., P _PSFCH,one+10log₁₀(X)＞P_CMAX), the UE autonomously determines (or selects) N _Tx,PSFCH PSFCH (i.e., second PSFCH set) from the first PSFCH set, and P _PSFCH,k′(i)＝min(P_CMAX-10log₁₀(N_Tx,PSFCH),P_PSFCH,one, based on the priority of PSFCH, the transmission content of PSFCH, and so on.

As another example, the power control parameter information includes a first reference signal RS _k and a power control parameter associated with the first reference signal RS _k (i.e., a compensation factor for target received power and downlink loss), and the power control parameter associated with the first reference signal includes a power control parameter associated with the first reference signal on a time domain resource TR _n, i.e., the power control parameter information includes power control parameters associated with the time domain resource and the first reference signal: target received power P _O,PSFCH,k,n and compensation factor of downlink loss α _PSFCH,k,n, where k=1, 2.

Based on this, in the transmission occasion i of PSFCH, taking as an example that the power control parameter to be used is a time slot of PSFCH to which the UE is scheduled or that the time domain resource TR _t(TR_t to which the transmission occasion belongs is a time domain resource TR _n, n=1, 2,..:

P_PSFCH,one＝P_O,PSFCH,m,t+10log₁₀(2^μ)+α_PSFCH,m,t·PL[dBm]；

Where P _O,PSFCH,m,t is the target received power in the power control parameter associated with time domain resource TR _t and first reference signal RS _m, and α _PSFCH,m,t is the compensation factor for the downlink loss in the power control parameter associated with time domain resource TR _t and first reference signal RS _m.

As one possible example, in case the UE is not provided with power control parameter information,

P_PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH)；

As another possible example, in case that the UE is not provided with the power control parameter information, if the UE is provided with the receiving end target power based on DL path loss power control (e.g., the UE is provided with the higher layer parameters DL-P0-PSFCH), the UE determines the transmission power P _PSFCH,k′(i),1≤k′≤N_Tx,PSFCH of the final transmitted PSFCH numbers N _Tx,PSFCH and PSFCH of transmission k' according to the above step (1). Otherwise (e.g., the UE is also not provided with the higher-layer parameters dl-P0-PSFCH), P _PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH), where N _Tx,PSFCH is autonomously selected by the UE according to the priority of PSFCH, the transmission content of PSFCH.

Example 2, the first reference signal associated power control parameters include a target received power, a compensation factor for a downlink loss, and a second reference signal for determining the downlink loss.

As an example, the power control parameter information includes a first reference signal RS _k and a power control parameter associated with the first reference signal RS _k (i.e., a target received power P _O,PSFCH,k, a compensation factor of a downlink loss a _PSFCH,k, and a second reference signal R _PSFCH,k for determining a downlink loss, where k=1, 2.

Based on this, in PSFCH transmission occasions i, taking as an example that the power control parameter to be used is the power control parameter associated with the first reference signal RS _m in the first reference signal RS _k (where k=1, 2..once., K), the transmission power P _PSFCH,k′ (i) of each PSFCH in the second PSFCH set may be determined in the following manner:

P_PSFCH,one＝P_O,PSFCH,m+10log₁₀(2^μ)+α_PSFCH,m·PL(R_PSFCH,m)[dBm]；

Wherein PL (R _PSFCH,m) is a downlink loss calculated based on the second reference signal R _PSFCH,m, and R _PSFCH,m is a second reference signal for determining the downlink loss in the power control parameters associated with the first reference signal RS _m.

As another example, the power control parameter information includes a first reference signal RS _k and a power control parameter associated with the first reference signal RS _k (i.e., a target received power, a compensation factor for a downlink loss, and a second reference signal for determining a downlink loss), and the power control parameter associated with the first reference signal includes a power control parameter associated with the first reference signal on a time domain resource TR _n, i.e., the power control parameter information includes power control parameters associated with the time domain resource and the first reference signal: target received power P _O,PSFCH,k,n, compensation factor α _PSFCH,k,n for downlink loss, and second reference signal R _pSFCH,k,n for determining downlink loss, where k=1, 2.

Based on this, in the transmission occasion i of PSFCH, the time domain resource TR _t(TR_t to which the time slot (or time resource) of PSFCH to which the UE is scheduled belongs with the power control parameter to be used is the time domain resource TR _n, n=1, 2, N, for example, the power control parameter associated with the first reference signal RS _m (i.e., 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), the transmission power P _PSFCH,k′ (i) of each PSFCH in the second set of PSFCH may be determined in the following manner:

P_PSFCH,one＝P_O,PSFCH,m,t+10log₁₀(2^μ)+α_PSFCH,m,t·PL(R_PSFCH,m,t)[dBm]；

Where PL (R _PSFCH,m,t) is the downlink loss calculated based on the second reference signal R _PSFCH,m,t, and R _PSFCH,m,t is the second reference signal for determining the downlink loss in the power control parameters associated with the time domain resource TR _t and the first reference signal RS _m.

P_PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH)；

In some embodiments, the time slots (or transmission occasions) of PSFCH that the terminal does not expect to be scheduled do not belong to any time domain resources TR _n; or the terminal expects the union of all time domain resources TR _n to contain all time slots in the side link resource pool or PSFCH resources in all time slots, n=1, 2,..n; or in case the time slot (or transmission occasion) of PSFCH to which the terminal is scheduled does not belong to any time domain resource TR _n,

P_PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH)；

Or in the case that the time slot (or transmission opportunity) of PSFCH scheduled by the terminal does not belong to the time domain resource TR _n, if the UE is provided with the target power of the receiving end based on DL path loss power control (for example, the UE is provided with the higher layer parameters DL-P0-PSFCH), the UE determines the finally transmitted PSFCH numbers N _Tx,PSFCH and PSFCH of transmission k' of transmission power P _PSFCH,k′(i),1≤k′≤N_Tx,PSFCH according to the above step (1). Otherwise, P _PSFCH,k′(i)＝P_CMAX-10log₁₀(N_Tx,PSFCH), where N _Tx,PSFCH is autonomously selected by the UE according to the priority of PSFCH, the transmission content of PSFCH.

Based on the embodiment shown in fig. 2, the transmission power of each PSFCH in the second set PSFCH is determined based on the power control parameters to be used and the first set PSFCH, and the power control parameters to be used are determined based on the power control parameter information and the first beam, which covers the transmission beam of each PSFCH in the first set PSFCH, that is to say the transmission beam of each PSFCH in the first set PSFCH is taken into account when determining the transmission power of each PSFCH in the second set PSFCH. Therefore, the technical scheme of the disclosure considers the influence of the transmitting beam on the transmission power of PSFCH when determining the transmission power of PSFCH, and improves the accuracy of determining the transmission power of PSFCH, thereby reducing the energy consumption and the interference on other transmissions while ensuring the communication performance.

The foregoing has described the solutions provided by the present disclosure mainly from the point of interaction between the nodes. It will be appreciated that each node, e.g., terminal and base station, may comprise hardware structures and/or software modules that perform the functions described above. Those of skill in the art will readily appreciate that the algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The embodiment of the disclosure may divide the functional modules of the terminal according to the embodiment of the method, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The integrated modules may be implemented in hardware or software. It should be noted that, in the embodiment of the present disclosure, the division of the modules is merely a logic function division, and other division manners may be implemented in actual practice. The following description will take an example of dividing each function module into corresponding functions.

Fig. 3 is a schematic diagram of a communication device according to an embodiment of the disclosure. As shown in fig. 3, the communication apparatus 20 includes an acquisition unit 201 and a processing unit 202.

The communication device 20 may be the terminal or a chip in the terminal. When the communication device 20 is used to realize the functions of the terminal in the above-described embodiment, each unit is specifically used to realize the following functions.

An obtaining unit 201, configured to obtain 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;

A processing unit 202 configured to determine a first set of physical side link feedback channels PSFCH and a first set of beams, the first set of beams covering transmit beams of each PSFCH of the first set PSFCH, the first set PSFCH being a subset of the set PSFCH that is scheduled; determining a power control parameter to be used according to the power control parameter information and the first wave beam; determining a transmission power of each PSFCH in the second PSFCH set and the second PSFCH set according to the power control parameters to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

In some embodiments, the power control parameter includes at least one of: the method comprises the steps of target receiving power, a compensation factor of downlink loss and a second reference signal for determining the downlink loss.

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

In some embodiments, the processing unit 202 is specifically configured to determine, when the target first reference signal exists in the first reference signal, a power control parameter to be used according to a power control parameter associated with the target first reference signal, where a second beam and a first beam corresponding to the target first reference signal meet a preset condition; or in the case that the target first reference signal does not exist in the first reference signals, determining the power control parameter to be used as a default power control parameter.

In some embodiments, the preset conditions include at least one of:

The second beam spatially overlaps the first beam;

the spatial overlapping area of the second beam and the first beam is greater than or equal to a first threshold;

The ratio between the spatially overlapping region of the second beam and the first beam and the coverage area of the first beam is greater than or equal to a second threshold;

A ratio between a spatially overlapping region of the second beam and the first beam and a coverage area of the second beam is greater than or equal to a third threshold;

The included angle between the second beam and the first beam is smaller than or equal to a fourth threshold;

the second beam has the same spatial filtering as the first beam.

In some embodiments, the processing unit 202 is configured to determine one 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.

In some embodiments, the determined target first reference signal is a highest priority target first reference signal of the plurality of target first reference signals; the priority is determined based on the overlapping area of the second beam and the first beam corresponding to the target first reference signal; or the priority is determined based on the included angle between the second beam corresponding to the target first reference signal and the first beam.

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

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

In some embodiments, the default power control parameters include at least one of:

A configured power control parameter;

A preconfigured power control parameter;

predefined power control parameters;

The power control parameter information comprises a power control parameter associated with a specific first reference signal;

The power control parameter information contains specific power control parameters.

In some embodiments, the first reference signal comprises at least one of: downlink channel state information reference signals; the downlink channel state information interferes with the measurement signal; downlink demodulation reference signals; an uplink demodulation reference signal; detecting a reference signal; a downlink phase tracking reference signal; a random access channel signal; a downlink synchronization signal block; a downlink positioning reference signal; a channel state information reference signal of the side link; demodulation reference signals of the side link; a phase tracking reference signal of the side link; positioning reference signals of the side links; synchronization signal blocks of the side link.

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

In some embodiments, the second reference signal comprises at least one of: downlink channel state information reference signals; the downlink channel state information interferes with the measurement signal; downlink demodulation reference signals; a downlink synchronization signal block.

The individual units in fig. 3 may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present disclosure may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present disclosure. The storage medium storing the computer software product includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (randomaccess memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In the case where the functions of the above-described integrated modules are implemented in the form of hardware, the embodiment of the present disclosure provides a schematic structural diagram of a communication apparatus, which may be the above-described communication apparatus 20. As shown in fig. 4, the communication device 30 includes: a processor 302, a communication interface 303, a bus 304. Optionally, the communication device 30 may also include a memory 301.

The processor 302 may be a logic block, module, and circuitry that implements or performs the various examples described in connection with the present disclosure. The processor 302 may be a central processor, 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. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor 302 may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

A communication interface 303 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.

The memory 301 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random accessmemory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), a magnetic 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 that can be accessed by a computer.

As a possible implementation, the memory 301 may exist separately from the processor 302, and the memory 301 may be connected to the processor 302 by a bus 304 for storing instructions or program code. The processor 302, when invoking and executing instructions or program code stored in the memory 301, is capable of implementing the transmission power determination method provided by the embodiments of the present disclosure.

In another possible implementation, the memory 301 may also be integrated with the processor 302.

Bus 304, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The bus 304 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 4, but not only one bus or one type of bus.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of each model is illustrated, and in practical application, the above-described function allocation may be performed by different models, that is, the internal structure of the base station or the terminal is divided into different models, so as to perform all or part of the above-described functions.

Embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the flow in the above method embodiments may be implemented by computer instructions to instruct related hardware, and the program may be stored in the above computer readable storage medium, and the program may include the flow in the above method embodiments when executed. The computer readable storage medium may be any of the foregoing embodiments or memory. The computer-readable storage medium may be an external storage device of the base station or the terminal, such as a plug-in hard disk, a smart card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, or a flash memory card (FLASH CARD) provided in the base station or the terminal. Further, the computer readable storage medium may include both an internal storage unit and an external storage device of the base station or the terminal. The computer-readable storage medium is used to store the computer program and other programs and data required by the base station or terminal. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

The disclosed embodiments also provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform any one of the transmission power determination methods provided in the embodiments above.

Although the disclosure has been described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed disclosure, from a study of the drawings, the disclosure, and the appended claims. In the claims, the term "comprising" (Comprising) does not exclude other elements or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present disclosure has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations thereof can be made without departing from the spirit and scope of the disclosure. Accordingly, the specification and drawings are merely exemplary illustrations of the present disclosure as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the disclosure. It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the spirit or scope of the disclosure. Thus, the present disclosure is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions within the technical scope of the disclosure should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method of transmission power determination, the method comprising:

Determining a first set of beams and a first set of physical side link feedback channels PSFCH, the first beam covering transmit beams of each PSFCH of a first set PSFCH, the first set PSFCH being a subset of the set PSFCH that is scheduled;

Determining a second PSFCH set and a transmission power of each PSFCH in the second PSFCH set according to the power control parameters to be used and the first PSFCH set; wherein the second PSFCH set is a subset of the first PSFCH set.

2. The method of claim 1, wherein the power control parameter comprises at least one of: the method comprises the steps of target receiving power, a compensation factor of downlink loss and a second reference signal for determining the downlink loss.

3. The method of claim 1, wherein the determining the first beam and the first set of physical side link feedback channels PSFCH comprises:

The first beam and the first set PSFCH are determined according to at least one of a priority, a transmit beam, and a transmission content of PSFCH in the scheduled PSFCH set.

4. The method of claim 1, wherein the determining the power control parameters to be used based on the power control parameter information and the first beam comprises:

and determining the power control parameter to be used according to the relation between the first beam and the second beam corresponding to the first reference signal.

5. The method of claim 4, wherein the determining the power control parameter to be used according to the relationship between the first beam and the second beam corresponding to the first reference signal comprises:

Under the condition that a target first reference signal exists in the first reference signals, determining the power control parameters to be used according to the power control parameters associated with the target first reference signals, wherein a second wave beam corresponding to the target first reference signal and the first wave beam meet preset conditions; or alternatively

And under the condition that the target first reference signal does not exist in the first reference signal, determining the power control parameter to be used as a default power control parameter.

6. The method of claim 5, wherein the preset conditions include at least one of:

The second beam spatially overlaps the first beam;

A ratio between a spatially overlapping region of the second beam and the first beam and a coverage region of the first beam is greater than or equal to a second threshold;

a ratio between a spatially overlapping region of the second beam and the first beam and a coverage region of the second beam is greater than or equal to a third threshold;

An included angle between the second beam and the first beam is smaller than or equal to a fourth threshold;

the second beam has the same spatial filtering as the first beam.

7. The method of claim 5, wherein there are a plurality of target first reference signals in the first reference signals, and wherein the determining the power control parameter to be used based on the power control parameter associated with the target first reference signals comprises:

One target first reference signal is determined from a plurality of target first reference signals, and the power control parameter associated with the determined target first reference signal is determined as the power control parameter to be used.

8. The method of claim 7, wherein the determined target first reference signal is a highest priority target first reference signal of the plurality of target first reference signals; the priority is determined based on the overlapping area of the first beam and the second beam corresponding to the target first reference signal; or the priority is determined based on the included angle between the second beam corresponding to the target first reference signal and the first beam.

9. The method of claim 5, wherein the power control parameter associated with the first reference signal comprises a power control parameter associated with the first reference signal on at least one time domain resource;

The determining the power control parameter to be used according to the power control parameter associated with the target first reference signal includes:

And determining the power control parameter associated with the time domain resource to which the time slot or the transmission opportunity of the scheduled PSFCH set belongs from the power control parameters associated with the target first reference signal as the power control parameter to be used.

10. The method of claim 5, wherein the default power control parameters include at least one of:

A configured power control parameter;

A preconfigured power control parameter;

predefined power control parameters;

a power control parameter associated with a specific first reference signal contained in the power control parameter information;

The power control parameter information includes a specific power control parameter.

11. The method of claim 1, wherein the step of determining the position of the substrate comprises,

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; or alternatively

And 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.

12. The method of claim 1, wherein the first reference signal comprises at least one of:

Downlink channel state information reference signals;

the downlink channel state information interferes with the measurement signal;

downlink demodulation reference signals;

an uplink demodulation reference signal;

Detecting a reference signal;

A downlink phase tracking reference signal;

A random access channel signal;

A downlink synchronization signal block;

A downlink positioning reference signal;

a channel state information reference signal of the side link;

demodulation reference signals of the side link;

a phase tracking reference signal of the side link;

positioning reference signals of the side links;

synchronization signal blocks of the side link.

13. The method of claim 1, wherein the power control parameter information indicates the first reference signal by at least one of:

A transmission configuration indication state of a communication link between the terminal and the network side;

A transmission configuration indication state of the side link;

Reference signal index.

14. The method of claim 2, wherein the second reference signal comprises at least one of:

Downlink channel state information reference signals;

the downlink channel state information interferes with the measurement signal;

downlink demodulation reference signals;

A downlink synchronization signal block.

15. A communication device comprising a memory, a processor and computer program instructions stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 14 when executing the computer program instructions.

16. A computer readable storage medium, the computer readable storage medium comprising computer program instructions; wherein the computer program instructions, when run on a computer, cause the computer to perform the method of any of claims 1 to 14.