Psfch transmission method and apparatus

Abstract

The present disclosure provides a PSFCH sending method, device and equipment and storage medium, belonging to the technical field of communication. The method comprises determining N1 PSFCHs in N PSFCHs and at least one sending beam, wherein the N PSFCHs are PSFCHs to be simultaneously sent by the terminal device, N and N1 are positive integers, N1 is less than or equal to N, N is greater than or equal to two, and the at least one sending beam is used to send the N1 PSFCHs. The present disclosure provides a processing method for the case of "PSFCH sending" to provide a determination mechanism of sending beams and sending PSFCHs when the terminal device simultaneously sends multiple PSFCHs, which can solve the case that PSFCHs cannot be sent when multiple PSFCHs are simultaneously sent and the number of simultaneously sent beams exceeds the number of simultaneously sent beams supported by the terminal device, and can improve the accuracy of sending beam determination and the accuracy of PSFCH sending.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, device and storage medium for transmitting a Physical Sidelink Feedback Channel (PSFCH). Background Technology

[0002] With the development of science and technology, it has become possible to use higher millimeter-wave frequency bands for sidelink communication in communication systems. For example, transmitting and receiving terminal equipment can use millimeter-wave frequency bands using analog beamforming or hybrid analog-digital beamforming. To improve the communication quality between transmitting and receiving terminal equipment, transmitting and receiving beams can be paired to form beam pairs with better communication quality. Summary of the Invention

[0003] This disclosure presents a PSFCH transmission method, apparatus, device, and storage medium to provide a transmission beam and PSFCH transmission determination mechanism when a terminal device transmits multiple PSFCHs simultaneously. This can solve the problem of PSFCH transmission failure when the number of simultaneous transmissions of multiple PSFCHs exceeds the number of beams supported by the terminal device, and can improve the accuracy of transmission beam determination and PSFCH transmission.

[0004] This disclosure provides a Physical Direct Feedback Channel (PSFCH) transmission method according to one embodiment, the method being executed by a terminal device, including:

[0005] N1 PSFCHs out of N PSFCHs are determined, and at least one transmit beam is determined. The N PSFCHs are the PSFCHs that the terminal device will transmit simultaneously. N and N1 are both positive integers. N1 is less than or equal to N and N is greater than or equal to two. The at least one transmit beam is used to transmit the N1 PSFCHs.

[0006] Another aspect of this disclosure provides a communication device, comprising:

[0007] The determining module is used to determine N1 PSFCHs out of N PSFCHs, and at least one transmit beam, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and the at least one transmit beam is used to transmit the N1 PSFCHs.

[0008] Another aspect of this disclosure provides a terminal device including a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the method as described in the preceding aspect of the embodiment.

[0009] Another aspect of this disclosure provides a communication device, comprising: a processor and an interface circuit;

[0010] The interface circuit is used to receive code instructions and transmit them to the processor;

[0011] The processor is configured to run the code instructions to perform the method as proposed in one aspect of the embodiments.

[0012] Another aspect of this disclosure provides a computer-readable storage medium for storing instructions that, when executed, cause the method described in one aspect of the disclosure to be implemented.

[0013] In summary, in the embodiments of this disclosure, N1 PSFCHs out of N PSFCHs are determined, along with at least one transmission beam. The N PSFCHs are the PSFCHs that the terminal device intends to transmit simultaneously. N and N1 are both positive integers, where N1 is less than or equal to N, and N is greater than or equal to two. The at least one transmission beam is used to transmit the N1 PSFCHs. In the embodiments of this disclosure, N1 PSFCHs can be determined when the terminal device transmits multiple PSFCHs simultaneously, reducing the possibility of PSFCHs being unable to be transmitted due to the inability to transmit N PSFCHs simultaneously. A mechanism for determining the transmission beam and a mechanism for transmitting PSFCHs are provided. This disclosure provides a processing method for the scenario of "PSFCH transmission," providing a mechanism for determining the transmission beam and PSFCHs when the terminal device transmits multiple PSFCHs simultaneously. This solves the problem of PSFCHs being unable to be transmitted when the number of beams supported by the terminal device for simultaneous transmission exceeds the number of PSFCHs it can transmit simultaneously, improving the accuracy of transmission beam determination and PSFCH transmission. Attached Figure Description

[0014] The foregoing and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the architecture of a communication system provided in one embodiment of the present disclosure;

[0016] Figure 2 This is a schematic flowchart illustrating a PSFCH transmission method provided in one embodiment of this disclosure;

[0017] Figure 3 A schematic flowchart illustrating a PSFCH transmission method provided in yet another embodiment of this disclosure;

[0018] Figure 4 A schematic flowchart illustrating a PSFCH transmission method provided in yet another embodiment of this disclosure;

[0019] Figure 5 A schematic flowchart illustrating a PSFCH transmission method provided in yet another embodiment of this disclosure;

[0020] Figure 6 A schematic flowchart illustrating a PSFCH transmission method provided in yet another embodiment of this disclosure;

[0021] Figure 7 This is a schematic diagram of the structure of a PSFCH transmitting device provided in one embodiment of the present disclosure;

[0022] Figure 8 This is a block diagram of a terminal device provided in one embodiment of the present disclosure;

[0023] Figure 9 This is a block diagram of a network-side device provided in one embodiment of the present disclosure. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0025] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0027] The network elements or network functions involved in the embodiments of this disclosure can be implemented by independent hardware devices or by software in hardware devices. This disclosure does not limit this.

[0028] Optionally, in some embodiments, the communication system may include, for example, terminal equipment and network equipment, and the network equipment may include, for example, core network equipment and access network equipment, such as... Figure 1 As shown, this disclosure provides a communication system including: core network equipment 11 (e.g., 5G core network (5th generation core, 5GC), evolved packet core (EPC)), access network equipment 12 (e.g., evolved node B (gNB), evolved node B (eNB)), and terminal equipment 13.

[0029] Terminal equipment 13, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., refers to devices that provide voice and / or data connectivity to users. Examples include handheld devices with wireless connectivity and in-vehicle devices. Currently, some examples of terminal equipment include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.

[0030] Core network equipment 11 refers to the equipment in the core network (CN) that provides service support for terminal equipment. For example, core network equipment includes the 5G core network (5GC) 11 and the evolved packet core (EPC) 12. Some core network equipment includes: access and mobility management functions (AMF), session management functions (SMF), user plane functions (UPF), etc., which are not listed here. Among them, the AMF can be responsible for the access management and mobility management of terminal equipment. The SMF can be responsible for session management, such as user session establishment. The UPF can be a user plane functional entity, mainly responsible for connecting to external networks.

[0031] Access network equipment 12 refers to a radio access network (RAN) node (or device) that connects terminal devices to a wireless network; it can also be called a base station. For example, access network equipment includes evolved node B (gNB) and evolved node B (eNB). Examples of RAN nodes include: gNB, eNB, transmission reception point (TRP), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B, HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), etc. Furthermore, in a network architecture, access network equipment may include a centralized unit (CU), a distributed unit (DU), or RAN equipment including both CU and DU. This includes RAN equipment with CU and DU separating the protocol layer from a logical function perspective. Some protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0032] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0033] in, Figure 1 The entities shown are illustrative; the implementation methods or embodiments of this disclosure may include... Figure 1 All or part of the main body, or may include Figure 1 Other entities besides these, the number of each entity is arbitrary, not limited to Figure 1 . Figure 1 The connections shown are illustrative. Any entities may be connected or not connected, and the connection can be in any way, whether it is a direct or indirect connection, a wired connection or a wireless connection.

[0034] Optionally, in one embodiment of this disclosure, the continuous emergence of new-generation Internet applications places higher demands on wireless communication technology, driving the continuous evolution of wireless communication technology to meet the needs of applications.

[0035] Optionally, in one embodiment of this disclosure, to better support vehicle-to-everything (V2X) communication, LTE vehicle-to-everything (V2X) wireless communication technology was developed in Long Term Evolution (LTE) Release 14, supporting communication between vehicle-to-everything (V2X) devices (such as vehicles-to-vehicle, vehicle-to-person, and vehicle-to-roadside nodes) via direct links. Release 15 further enhanced LTE V2X technology, supporting features such as carrier aggregation. Following the development of 5G New Radio (NR) technology in Release 15, the 3rd Generation Partnership Project (3GPP) initiated work on supporting V2X communication using the NR interface, completing the 5G sidelink in Release 16, supporting direct communication between V2X devices via NR technology. In Release 17, NR Sidelink underwent further enhancements, including improvements in energy efficiency and reliability.

[0036] Beam management support was not considered in LTE V2X and Release 16 NR V2X because the primary frequency bands for V2X applications at that time were located in lower spectrum locations. However, with technological advancements, sidelink communication using higher millimeter-wave bands has become possible. When using millimeter-wave bands (e.g., FR2 band), analog beamforming or hybrid analog-digital beamforming is typically employed. When both the transmitting and receiving terminals use analog beamforming, pairing the transmit and receive beams is necessary to achieve better communication quality. Therefore, beam management support is required on the sidelink.

[0037] In traditional NR downlink (DL) or uplink (UL) communication, beam management is performed using reference signals such as downlink synchronization signals and PBCH blocks (SSBs), Channel State Information (CSI)-Reference Signals (RS), or uplink Sounding Reference Signals (SRS). The terminal device reports a measurement report obtained from downlink CSI-RS measurements, and the base station determines the downlink transmission beam based on this report. The base station determines the uplink transmission beam of the terminal device based on uplink SRS measurements, or instructs the terminal device to determine the uplink transmission beam according to the receive beam of a specific downlink reference signal based on channel exclusivity. Since both uplink and downlink transmissions are scheduled and controlled by the base station, base station scheduling ensures that neither the base station nor the terminal device needs to simultaneously transmit multiple signals / channels requiring different transmission beams beyond their capacity.

[0038] Currently, NR SL only supports the simultaneous transmission of one PSCCH / PSSCH or one S-SSB. Therefore, a terminal device only needs to use one transmit beam to transmit the Physical Sidelink Control Channel (PSCCH), Physical Sidelink Control Channel (PSSCH), or S-SSB simultaneously. However, NR SL now supports the simultaneous transmission of multiple Physical Sidelink Feedback Channels (PSFCHs). Multiple PSFCHs can multiplex the same Orthogonal Frequency Division Multiplexing (OFDM) symbols using Frequency-division multiplexing (FDM) or Code Division Multiplexing (CDM) and be transmitted by the same terminal device. The number of PSFCHs that a terminal device can transmit simultaneously is determined by the terminal device's capabilities. In R16 / 17 Sidelink, since terminal devices can only use omnidirectional antennas for transmission, the simultaneous transmission of multiple PSFCHs does not cause problems.

[0039] The following describes in detail, with reference to the accompanying drawings, a PSFCH transmission method, apparatus, device, and storage medium provided in the embodiments of this disclosure.

[0040] Figure 2 This is a flowchart illustrating a PSFCH transmission method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 2 As shown, the method may include the following steps:

[0041] Step 201: Determine N1 PSFCHs out of N PSFCHs, and at least one transmit beam, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and at least one transmit beam is used to transmit the N1 PSFCHs.

[0042] It should be noted that, in one embodiment of this disclosure, the executing entity of this embodiment may be, for example, a terminal device. The terminal device may be a device that provides voice and / or data connectivity to a user. The terminal device may communicate with one or more core networks via a RAN (Radio Access Network). The terminal device may be an Internet of Things (IoT) terminal, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT terminal. For example, it may be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, and user equipment (UE). Alternatively, the terminal device may also be a device from an unmanned aerial vehicle (UAV). Alternatively, the terminal device may also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless terminal connected to an external vehicle computer. Alternatively, the terminal device can also be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0043] In one embodiment of this disclosure, the New Radio (NR) is a synchronization system. This embodiment may take a slot as an example. The slot may also be replaced by other time units, such as frames, subframes, OFDM symbols, seconds, microseconds, etc. The slot in the text may be a physical slot or a logical slot. For example, all slots that can be used for SL transmission are defined as logical slots, or slots in a resource pool are defined as logical slots, and slot n+1 is the next logical slot after slot n.

[0044] Here, "beam" refers to spatial relation information, spatial setting, spatial Rx parameter, Tx spatial filter, spatial domain receive filters, transmission configuration indication (TCI) status, quasi-co-location (QCL), and type D, etc.

[0045] Furthermore, in one embodiment of this disclosure, N is used, for example, to indicate the number of PSFCHs that the terminal device needs to send simultaneously. N does not specifically refer to a fixed value. N is a positive integer. N is greater than two. The terminal device can, for example, determine the corresponding PSFCH feedback time-frequency domain position according to the transmission time-frequency resources of PSSCH / PSCCH based on the protocol, and determine the N PSFCHs that need to be fed back within the same time unit.

[0046] For example, in one embodiment of this disclosure, N1 is used to indicate the number of PSFCHs that the terminal device determines to be sent simultaneously from N PSFCHs. N1 does not specifically refer to a fixed value. For example, when the method of determining N1 changes, N1 can also change accordingly. N1 is less than or equal to N. For example, N1 can be less than N. For example, N1 can also be equal to N.

[0047] In some embodiments, the transmit beam may refer, for example, to a beam used to transmit PSFCH. At least one transmit beam is used to transmit N1 PSFCHs. One transmit beam may, for example, transmit one PSFCH.

[0048] In one embodiment of this disclosure, determining at least one transmission beam includes:

[0049] Determine at least one transmit beam as the default transmit beam.

[0050] For example, in one embodiment of this disclosure, if at least one transmit beam is determined to be the default transmit beam, N1 PSFCHs can be transmitted using the default transmit beam.

[0051] In one embodiment of this disclosure, the default transmission beam may be configured by the base station. The default transmission beam may also be predefined. Alternatively, the default beam may be pre-configured.

[0052] In one embodiment of this disclosure, the default transmission beam includes at least one of the following:

[0053] Omnidirectional beam;

[0054] The transmit beam corresponding to the receive beam of a specific sidelink-synchronization signal block (S-SSB) resource;

[0055] The transmit beam corresponding to the receive beam of the sidelink downlink channel state information-reference signal (SL CSI-RS) resource.

[0056] Furthermore, in one embodiment of this disclosure, the default transmission beam can be, for example, an omnidirectional beam. The terminal device can, for example, use the omnidirectional beam to transmit N1 PSFCHs. The omnidirectional beam can, for example, be the beam corresponding to an omnidirectional antenna.

[0057] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of a specific S-SSB or SLCSI-RS resource.

[0058] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of a specific S-SSB resource.

[0059] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of the SL CSI-RS resource.

[0060] Furthermore, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0061] Determine the maximum number of PSFCHs that can be transmitted simultaneously, M1, when using the default transmit beam, where M1 is a positive integer and M1 is less than or equal to N;

[0062] Choose N1 PSFCHs from N PSFCHs, where N1 is less than or equal to M1.

[0063] In one embodiment of this disclosure, M1 is used to indicate the maximum number of PSFCHs that can be transmitted simultaneously when using the default transmit beam. This maximum number M1 is a positive integer. The maximum number M1 can be, for example, a predefined fixed value or determined based on the capabilities of the terminal device. When the maximum number M1 is determined based on the capabilities of the terminal device, it can be determined, for example, through pre-configuration or by receiving downlink control signaling from the base station.

[0064] For example, in one embodiment of this disclosure, the maximum number M1 may be a predefined fixed value.

[0065] For example, in one embodiment of this disclosure, the maximum number M1 may be determined by pre-configuration.

[0066] For example, in one embodiment of this disclosure, the maximum number M1 may be determined, for instance, by receiving downlink control signaling from a base station.

[0067] For example, in one embodiment of this disclosure, selecting N1 PSFCHs from N PSFCHs includes:

[0068] Select N1 PSFCHs from the N PSFCHs according to the PSFCH transmission priority from high to low.

[0069] For example, in one embodiment of this disclosure, when N is greater than M1, no more than M N1 PSFCHs can be selected for transmission according to the PSFCH transmission priority. These N1 PSFCHs can, for example, share the maximum transmission power of the terminal device equally.

[0070] For example, in one embodiment of this disclosure, when N is greater than M1, no more than M N1 PSFCHs can be selected for transmission according to the order of PSFCH transmission priority, and the transmission of other PSFCHs can be discarded.

[0071] In one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0072] Determine the minimum power P1 used to transmit a PSFCH when using the default transmit beam;

[0073] Based on the minimum power and the maximum transmit power Pmax of the terminal device, determine N1 PSFCHs out of N PSFCHs.

[0074] For example, in one embodiment of this disclosure, the product of N1 and P1 is less than or equal to Pmax.

[0075] Furthermore, in one embodiment of this disclosure, when N1 PSFCHs out of N PSFCHs are determined, the N1 PSFCHs can be sent, and the other PSFCHs can be discarded.

[0076] In one embodiment of this disclosure, determining at least one transmission beam includes:

[0077] Determine the number of transmit beams M2 that the terminal device can use simultaneously;

[0078] At least one transmission beam is determined based on the number of transmission beams M2.

[0079] Furthermore, in one embodiment of this disclosure, M2 is used to indicate the number of transmission beams that the terminal device supports using simultaneously. M2 can be a predefined fixed value. M2 does not specifically refer to a particular fixed value. For example, M2 can be 1, 2, or 4.

[0080] For example, in one embodiment of this disclosure, M2 may depend on the capabilities of the terminal device. These capabilities can be reported to the base station via uplink control signaling or transmitted to other terminal devices via sidelink control signaling.

[0081] In one embodiment of this disclosure, determining the number M2 of transmission beams M2 that the terminal device supports for simultaneous use includes:

[0082] Determine the number M2 of transmission beams that the terminal device supports for simultaneous use based on at least one of the following:

[0083] The capabilities of the terminal equipment;

[0084] Pre-configuration information of terminal devices;

[0085] Control information received from the base station or network-side equipment;

[0086] Implementation of terminal devices.

[0087] In one embodiment of this disclosure, the pre-configuration information may be directly configured in the terminal device. This pre-configuration information may, for example, include M2.

[0088] For example, in one embodiment of this disclosure, the number M2 of transmit beams that the terminal device supports for simultaneous use can be determined based on the capabilities of the terminal device.

[0089] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports for simultaneous use can be determined based on the pre-configuration information of the terminal device.

[0090] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the base station or network-side device.

[0091] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the base station.

[0092] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the network-side device.

[0093] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports for simultaneous use can be determined according to the implementation of the terminal device.

[0094] In one embodiment of this disclosure, implementation may mean that the protocol does not specify, and different manufacturers' terminal devices may have different implementation schemes.

[0095] In one embodiment of this disclosure, at least one transmission beam is determined, including at least one of the following:

[0096] At least one transmit beam is determined by at least one of the transmit beams and receive beams of the physical direct control channel PSCCH corresponding to N1 PSFCHs.

[0097] At least one transmit beam is determined by selecting at least one of the transmit beams and receive beams of the Physical Direct Shared Channel (PSSCH) corresponding to the N1 PSFCHs.

[0098] For example, in one embodiment of this disclosure, at least one transmit beam is determined by at least one of the transmit beams and receive beams of the Physical Direct Control Channels (PSCCHs) corresponding to N1 PSFCHs.

[0099] For example, in one embodiment of this disclosure, at least one transmit beam is determined by at least one of the transmit beams and receive beams of the Physical Direct Shared Channel (PSSCH) corresponding to N1 PSFCHs.

[0100] In one embodiment of this disclosure, the method further includes:

[0101] Determine N1 based on M2, where N1 is less than or equal to M2.

[0102] In one embodiment of this disclosure, N1 is less than or equal to M2.

[0103] For example, in one embodiment of this disclosure, when determining N1 according to M2, N1 PSFCHs can be determined from N PSFCHs.

[0104] For example, in one embodiment of this disclosure, the method includes at least one of the following:

[0105] Determine the minimum value among N, M2, and M3 as N1, where M3 indicates the number of PSFCHs that the terminal device supports sending simultaneously, and M2 is less than M3;

[0106] Determine the minimum value among N, M2, and M4 as N1; where M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously.

[0107] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0108] For example, in one embodiment of this disclosure, M3 is used to indicate the number of PSFCHs that the terminal device supports sending simultaneously. The value of M3 depends on the capabilities of the terminal device.

[0109] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0110] For example, in one embodiment of this disclosure, M4 is used to indicate the maximum number of PSFCHs that the terminal device can simultaneously transmit. When M2 is less than the number of PSFCHs that the terminal device can simultaneously transmit, M3, the minimum power P2 for transmitting one PSFCH can be determined. Based on the minimum power P2 for transmitting one PSFCH and the maximum transmission power Pmax of the terminal device, the maximum number of PSFCHs that the terminal device can simultaneously transmit, M4, is determined, and the minimum value among N, M2, and M4 is determined to be N1. For example, N1 is the minimum value among N, M2, and M4. Optionally, the transmission power of N1 PSFCHs is evenly distributed among the maximum transmission power Pmax of the terminal device.

[0111] For example, in one embodiment of this disclosure, for N PSFCHs, the minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs can be determined. In response to the determined minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs and the maximum transmission power Pmax of the terminal device, it is determined that the sum of the minimum transmission powers corresponding to the N1 PSFCHs among the N PSFCHs does not exceed Pmax. For instance, given the determined minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs and the maximum transmission power Pmax of the terminal device, N1 PSFCHs can be selected from the N PSFCHs, wherein the sum of the minimum transmission powers corresponding to the N1 PSFCHs does not exceed the maximum transmission power Pmax.

[0112] Furthermore, in one embodiment of this disclosure, the N1 PSFCHs can, for example, allocate the maximum transmission power Pmax proportionally to the minimum transmission power of each PSFCH. For example, suppose the PSFCHs... i and PSFCH j All belong to N1 PSFCHs, PSFCH i Actual transmit power Pia / PSFCH j The actual transmit power Pja is equal to PSFCH i Minimum transmit power and PSFCH j The minimum transmit power ratio Pi / Pj, and the sum of the transmit powers of N1 PSFCHs equals Pmax.

[0113] In one embodiment of this disclosure, the method further includes:

[0114] N1 PSFCHs are selected in descending order of PSFCH transmission priority.

[0115] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for example, by the priority field in the Sidelink Control Information (SCI) carried in the PSCCH or PSSCH transmission corresponding to the PSFCH.

[0116] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for instance, by the priority field in the SCI carried in the PSCCH transmission corresponding to the PSFCH.

[0117] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for instance, by the priority field in the SCI carried in the PSSCH transmission corresponding to the PSFCH.

[0118] In one embodiment of this disclosure, the method further includes:

[0119] A first set is determined, wherein the first set includes at least one first transmit beam combination, and the transmit beams in the first transmit beam combination can be used simultaneously.

[0120] For example, in one embodiment of this disclosure, the term "first" in the first set is used only to distinguish it from the second set and does not specifically refer to a fixed set. For instance, the first set may also change accordingly when the number of combinations included in the first set changes. The first set may, for example, be a collection of at least one transmit beam combination that can be used simultaneously. For example, the transmit beams included in one transmit beam combination of the first set can be used simultaneously.

[0121] For example, in one embodiment of this disclosure, a transmit beam combination in the first set may include transmit beams corresponding to different antenna panels, which may be used simultaneously.

[0122] Furthermore, in one embodiment of this disclosure, determining the first set includes:

[0123] The first set is determined based on at least one of the following:

[0124] The capabilities of the terminal equipment;

[0125] Pre-configuration information of terminal devices;

[0126] Control information received from the base station or network-side equipment;

[0127] Implementation of terminal devices.

[0128] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0129] Based on the first set, determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to a first transmit beam combination in the first set.

[0130] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0131] Determine the transmit beam corresponding to one of the N PSFCHs;

[0132] Determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to a first transmit beam combination in the first set.

[0133] In one embodiment of this disclosure, one PSFCH corresponds to one transmit beam in the transmit beam combination.

[0134] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes at least one of the following:

[0135] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0136] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0137] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0138] For example, in one embodiment of this disclosure, the PSFCH carries a HARQ-acknowledgement (ACK) feedback message of its associated PSCCH or PSSCH, and the target receiving terminal device of the feedback information is the transmitting terminal device of its associated PSCCH or PSSCH. The second-stage SCI information carried in the transmission of the PSCCH or PSSCH associated with the PSFCH includes the source ID information of the transmitting terminal device; the transmitting terminal device of the PSFCH can select different most suitable transmission beams according to different terminal devices.

[0139] For example, in one embodiment of this disclosure, the method further includes at least one of the following:

[0140] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0141] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0142] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0143] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0144] For example, in one embodiment of this disclosure, the method may include: selecting N1 PSFCHs according to the criterion of selecting the most PSFCHs, and selecting a transmit beam combination that can support the transmission of the most PSFCHs.

[0145] For example, in one embodiment of this disclosure, the method may include: selecting a transmit beam according to PSFCH priority, and selecting a transmit beam combination that can support the transmission of the highest priority PSFCH.

[0146] For example, in one embodiment of this disclosure, the method may include: first selecting according to the criterion of selecting the most PSFCHs, and then selecting according to the criterion of the highest priority when multiple transmit beam combinations can support the same number of PSFCHs.

[0147] For example, in one embodiment of this disclosure, the method may include: first selecting according to the highest priority criterion, and then selecting according to the highest PSFCH criterion.

[0148] In one embodiment of this disclosure, the method further includes:

[0149] A second set is determined, wherein the second set includes at least one second transmit beam combination, and the transmit beams in the second transmit beam combination cannot be used simultaneously.

[0150] For example, in one embodiment of this disclosure, determining the second set includes:

[0151] The second set is determined based on at least one of the following:

[0152] The capabilities of the terminal equipment;

[0153] Pre-configuration information of terminal devices;

[0154] Control information received from the base station or network-side equipment;

[0155] Implementation of terminal devices.

[0156] For example, in one embodiment of this disclosure, the method further includes:

[0157] A second set is determined, wherein the second set includes at least one second transmit beam combination, and the transmit beams in the second transmit beam combination cannot be used simultaneously.

[0158] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0159] Determine the transmit beam corresponding to one of the N PSFCHs;

[0160] Determine N1 PSFCHs out of N PSFCHs, where the transmit beam corresponding to the first PSFCH among the N1 PSFCHs and the transmit beam corresponding to the second PSFCH among the N1 PSFCHs belong to different combinations of second transmit beams in the second set.

[0161] For example, in one embodiment of this disclosure, N1 PSFCHs out of N PSFCHs can be determined based on a second set.

[0162] For example, in one embodiment of this disclosure, the first PSFCH and the second PSFCH are used to indicate two different PSFCHs among N1 PSFCHs. The first PSFCH and the second PSFCH do not specifically refer to two fixed PSFCHs.

[0163] For example, in one embodiment of this disclosure, at most one transmit beam is selected in each combination in the second set. If there are multiple PSFCHs corresponding to multiple transmit beams in a combination, the PSFCH with the highest priority and its corresponding transmit beam can be selected, and the selected PSFCH is determined as N1 PSFCHs; the transmit beam combination corresponding to the selected PSFCH is determined as the transmit beam of the transmit PSFCH.

[0164] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes at least one of the following:

[0165] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0166] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0167] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0168] For example, in one embodiment of this disclosure, the PSFCH carries a HARQ-acknowledgement (ACK) feedback message of its associated PSCCH or PSSCH, and the target receiving terminal device of the feedback information is the transmitting terminal device of its associated PSCCH or PSSCH. The second-stage SCI information carried in the transmission of the PSCCH or PSSCH associated with the PSFCH includes the source ID information of the transmitting terminal device; the transmitting terminal device of the PSFCH can select different most suitable transmission beams according to different terminal devices.

[0169] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0170] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0171] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0172] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0173] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0174] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0175] For example, in one embodiment of this disclosure, the method further includes at least one of the following:

[0176] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0177] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0178] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0179] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0180] The embodiments or examples disclosed herein are not exhaustive, but merely illustrative of some embodiments or examples, and are not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment or example can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment or example can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment or example can be arbitrarily interchanged. Furthermore, optional methods or examples in a particular embodiment or example can be arbitrarily combined; moreover, embodiments or examples can be arbitrarily combined. For example, some or all steps of different embodiments or examples can be arbitrarily combined, and a particular embodiment or example can be arbitrarily combined with optional methods or examples of other embodiments or examples.

[0181] In some implementations or embodiments, terms such as “in response to…”, “in the case of…”, “when…”, “when…”, “if…”, etc. in this disclosure can be replaced with each other.

[0182] In some implementations or embodiments, the notation "A or B", "A and / or B", "at least one of A and B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include at least one of the following technical solutions depending on the circumstances: executing A regardless of B, that is, A in some implementations or embodiments; executing B regardless of A, that is, B in some implementations or embodiments; selectively executing A and B, that is, selecting to execute from A and B in some implementations or embodiments; executing both A and B, that is, A and B in some implementations or embodiments.

[0183] In some implementations or embodiments, the terms "including A", "containing A", "for indicating A", and "carrying A" in this disclosure can be interpreted as directly carrying A or indirectly indicating A.

[0184] In summary, in the embodiments of this disclosure, N1 PSFCHs out of N PSFCHs are determined, along with at least one transmission beam. The N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, where N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two. At least one transmission beam is used to transmit the N1 PSFCHs. In the embodiments of this disclosure, N1 PSFCHs can be determined when the terminal device transmits multiple PSFCHs simultaneously, reducing the possibility of PSFCHs being unable to be transmitted due to the inability to transmit N PSFCHs simultaneously. A mechanism for determining the transmission beam and a mechanism for transmitting PSFCHs are provided. This disclosure provides a processing method for the scenario of "PSFCH transmission," providing a mechanism for determining the transmission beam and the transmission PSFCHs when the terminal device transmits multiple PSFCHs simultaneously. This solves the problem of PSFCHs being unable to be transmitted when the number of beams supported by the terminal device for simultaneous transmission exceeds the number of PSFCHs it can transmit simultaneously, improving the accuracy of transmission beam determination and PSFCH transmission. Second, by designating at least one transmit beam as the default transmit beam, the beam determination time can be reduced, improving the transmission efficiency of N1 PSFCHs. Third, by determining the maximum number M1 of PSFCHs that can be transmitted simultaneously when using the default transmit beam, the accuracy of determining and transmitting N1 PSFCHs can be improved. Fourth, by determining the minimum power P1 used to transmit one PSFCH when using the default transmit beam, the accuracy of determining and transmitting N1 PSFCHs can be improved. Fifth, by determining the number M2 of transmit beams that the terminal device supports using simultaneously, and determining the transmit beams based on the number M2, the accuracy of transmit beam determination can be improved, reducing the number of cases where N1 PSFCHs cannot be transmitted simultaneously, thus improving the accuracy of transmitting N1 PSFCHs. Sixth, determining the first set of transmit beams that the terminal equipment supports for simultaneous use can identify N1 PSFCHs out of N PSFCHs, improving the matching between the N1 PSFCHs and the first set, increasing the accuracy of N1 PSFCH identification, reducing the number of cases where the N1 PSFCHs cannot be transmitted simultaneously, and improving the accuracy of N1 PSFCH transmission. Seventh, determining the second set of transmit beams that the terminal equipment does not support for simultaneous use can identify N1 PSFCHs out of N PSFCHs, improving the matching between the N1 PSFCHs and the second set, increasing the accuracy of N1 PSFCH identification, reducing the number of cases where the N1 PSFCHs cannot be transmitted simultaneously, and improving the accuracy of N1 PSFCH transmission.

[0185] Figure 3 This is a flowchart illustrating a PSFCH transmission method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 3 As shown, the method may include the following steps:

[0186] Step 301: Determine N1 PSFCHs out of N PSFCHs, and determine at least one transmit beam as the default transmit beam. Here, N PSFCHs are PSFCHs that the terminal device will transmit simultaneously. N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two. The default transmit beam is used to transmit N1 PSFCHs.

[0187] For example, in one embodiment of this disclosure, if at least one transmit beam is determined to be the default transmit beam, N1 PSFCHs can be transmitted using the default transmit beam.

[0188] In one embodiment of this disclosure, the default transmission beam may be configured by the base station. The default transmission beam may also be predefined. Alternatively, the default beam may be pre-configured.

[0189] In one embodiment of this disclosure, the default transmission beam includes at least one of the following:

[0190] Omnidirectional antenna;

[0191] The transmit beam corresponding to the receive beam of a specific sidelink-synchronization signal block (S-SSB) resource;

[0192] The transmit beam corresponding to the receive beam of the sidelink downlink channel state information-reference signal (SL CSI-RS) resource.

[0193] Furthermore, in one embodiment of this disclosure, the default transmission beam can be, for example, an omnidirectional antenna. The terminal device can, for example, use an omnidirectional antenna to transmit N1 PSFCHs.

[0194] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of a specific S-SSB or SLCSI-RS resource.

[0195] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of a specific S-SSB resource.

[0196] For example, in one embodiment of this disclosure, the default beam may be, for example, the transmit beam corresponding to the receive beam of the SL CSI-RS resource.

[0197] Furthermore, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0198] Determine the maximum number of PSFCHs that can be transmitted simultaneously, M1, when using the default transmit beam, where M1 is a positive integer;

[0199] Choose N1 PSFCHs from N PSFCHs, where N is greater than M1 and N1 is less than or equal to M1.

[0200] In one embodiment of this disclosure, M1 is used to indicate the maximum number of PSFCHs that can be transmitted simultaneously when using the default transmit beam. This maximum number M1 is a positive integer. The maximum number M1 can be, for example, a predefined fixed value or determined based on the capabilities of the terminal device. When the maximum number M1 is determined based on the capabilities of the terminal device, it can be determined, for example, through pre-configuration or by receiving downlink control signaling from the base station.

[0201] For example, in one embodiment of this disclosure, the maximum number M1 may be a predefined fixed value.

[0202] For example, in one embodiment of this disclosure, the maximum number M1 may be determined by pre-configuration.

[0203] For example, in one embodiment of this disclosure, the maximum number M1 may be determined, for instance, by receiving downlink control signaling from a base station.

[0204] For example, in one embodiment of this disclosure, selecting N1 PSFCHs from N PSFCHs includes:

[0205] Select N1 PSFCHs from the N PSFCHs according to the PSFCH transmission priority from high to low.

[0206] For example, in one embodiment of this disclosure, when N is greater than M1, no more than M N1 PSFCHs can be selected for transmission according to the PSFCH transmission priority. These N1 PSFCHs can, for example, share the maximum transmission power of the terminal device equally.

[0207] For example, in one embodiment of this disclosure, when N is greater than M1, no more than M N1 PSFCHs can be selected for transmission according to the order of PSFCH transmission priority, and the transmission of other PSFCHs can be discarded.

[0208] In one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0209] Determine the minimum power P1 used to transmit a PSFCH when using the default transmit beam;

[0210] Based on the minimum power and the maximum transmit power Pmax of the terminal device, determine N1 PSFCHs out of N PSFCHs.

[0211] For example, in one embodiment of this disclosure, the product of N1 and P1 is less than or equal to Pmax.

[0212] Furthermore, in one embodiment of this disclosure, when N1 PSFCHs out of N PSFCHs are determined, the N1 PSFCHs can be sent, and the other PSFCHs can be discarded.

[0213] In one embodiment of this disclosure, the description of steps 301-302 can be found in the description of steps 201-202, and this embodiment is not limited thereto. The optional examples in this disclosure can be arbitrarily combined, and without contradiction, this disclosure can be combined with steps from other embodiments and optional examples from other embodiments.

[0214] In summary, in the embodiments of this disclosure, by determining at least one transmission beam as the default transmission beam, the determination time of the transmission beam can be reduced, thereby improving the transmission efficiency of N1 PSFCHs. Secondly, by determining the maximum number M1 of PSFCHs that can be transmitted simultaneously when using the default transmission beam, the accuracy of determining N1 PSFCHs and the accuracy of transmitting N PSFCHs can be improved. Furthermore, by determining the minimum power P1 used to transmit one PSFCH when using the default transmission beam, the accuracy of determining N1 PSFCHs and the accuracy of transmitting N PSFCHs can be improved.

[0215] Figure 4 This is a flowchart illustrating a PSFCH transmission method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 4 As shown, the method may include the following steps:

[0216] Step 401: Determine N1 PSFCHs out of N PSFCHs, where N PSFCHs are PSFCHs that the terminal device needs to send simultaneously, and N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two;

[0217] Step 402: Determine the number M2 of transmission beams that the terminal device can use simultaneously;

[0218] Step 403: Determine at least one transmission beam based on the number of transmission beams M2;

[0219] Step 404: Transmit N1 PSFCHs using at least one transmit beam.

[0220] Furthermore, in one embodiment of this disclosure, M2 is used to indicate the number of transmission beams that the terminal device supports using simultaneously. M2 can be a predefined fixed value. M2 does not specifically refer to a particular fixed value. For example, M2 can be 1, 2, or 4.

[0221] For example, in one embodiment of this disclosure, M2 may depend on the capabilities of the terminal device. These capabilities can be reported to the base station via uplink control signaling or transmitted to other terminal devices via sidelink control signaling.

[0222] In one embodiment of this disclosure, determining the number M2 of transmission beams M2 that the terminal device supports for simultaneous use includes:

[0223] Determine the number M2 of transmission beams that the terminal device supports for simultaneous use based on at least one of the following:

[0224] The capabilities of the terminal equipment;

[0225] Pre-configuration information of terminal devices;

[0226] Control information received from the base station or network-side equipment;

[0227] Implementation of terminal devices.

[0228] In one embodiment of this disclosure, the pre-configuration information may be directly configured in the terminal device. This pre-configuration information may, for example, include M2.

[0229] For example, in one embodiment of this disclosure, the number M2 of transmit beams that the terminal device supports for simultaneous use can be determined based on the capabilities of the terminal device.

[0230] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports for simultaneous use can be determined based on the pre-configuration information of the terminal device.

[0231] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the base station or network-side device.

[0232] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the base station.

[0233] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports using simultaneously can be determined based on the control information received from the network-side device.

[0234] For example, in one embodiment of this disclosure, the number M2 of transmission beams that the terminal device supports for simultaneous use can be determined according to the implementation of the terminal device.

[0235] In one embodiment of this disclosure, implementation may mean that the protocol does not specify, and different manufacturers' terminal devices may have different implementation schemes.

[0236] In one embodiment of this disclosure, at least one transmission beam is determined, including at least one of the following:

[0237] At least one transmit beam is determined by at least one of the transmit beams and receive beams of the physical direct control channel PSCCH corresponding to N1 PSFCHs.

[0238] At least one transmit beam is determined by selecting at least one of the transmit beams and receive beams of the Physical Direct Shared Channel (PSSCH) corresponding to the N1 PSFCHs.

[0239] For example, in one embodiment of this disclosure, at least one transmit beam is determined by at least one of the transmit beams and receive beams of the Physical Direct Control Channels (PSCCHs) corresponding to N1 PSFCHs.

[0240] For example, in one embodiment of this disclosure, at least one transmit beam is determined by at least one of the transmit beams and receive beams of the Physical Direct Shared Channel (PSSCH) corresponding to N1 PSFCHs.

[0241] In one embodiment of this disclosure, the method further includes:

[0242] Determine N1 based on M2, where N1 is less than or equal to M2.

[0243] In one embodiment of this disclosure, N1 is less than or equal to M2.

[0244] For example, in one embodiment of this disclosure, when determining N1 according to M2, N1 PSFCHs can be determined from N PSFCHs.

[0245] For example, in one embodiment of this disclosure, the method includes at least one of the following:

[0246] Determine the minimum value among N, M2, and M3 as N1, where M3 indicates the number of PSFCHs that the terminal device supports sending simultaneously, and M2 is less than M3;

[0247] Determine the minimum value among N, M2, and M4 as N1; where M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously.

[0248] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0249] For example, in one embodiment of this disclosure, M3 is used to indicate the number of PSFCHs that the terminal device supports sending simultaneously. The value of M3 depends on the capabilities of the terminal device.

[0250] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0251] For example, in one embodiment of this disclosure, M4 is used to indicate the maximum number of PSFCHs that the terminal device can simultaneously transmit. When M2 is less than the number of PSFCHs that the terminal device can simultaneously transmit, M3, the minimum power P2 for transmitting one PSFCH can be determined. Based on the minimum power P2 for transmitting one PSFCH and the maximum transmission power Pmax of the terminal device, the maximum number of PSFCHs that the terminal device can simultaneously transmit, M4, is determined, and the minimum value among N, M2, and M4 is determined to be N1. For example, N1 is the minimum value among N, M2, and M4. Optionally, the transmission power of N1 PSFCHs is evenly distributed among the maximum transmission power Pmax of the terminal device.

[0252] For example, in one embodiment of this disclosure, for N PSFCHs, the minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs can be determined. In response to the determined minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs and the maximum transmission power Pmax of the terminal device, it is determined that the sum of the minimum transmission powers corresponding to the N1 PSFCHs among the N PSFCHs does not exceed Pmax. For instance, given the determined minimum transmission power Pi corresponding to the i-th PSFCH among the N PSFCHs and the maximum transmission power Pmax of the terminal device, N1 PSFCHs can be selected from the N PSFCHs, wherein the sum of the minimum transmission powers corresponding to the N1 PSFCHs does not exceed the maximum transmission power Pmax.

[0253] Furthermore, in one embodiment of this disclosure, the N1 PSFCHs can, for example, allocate the maximum transmission power Pmax proportionally to the minimum transmission power of each PSFCH. For example, suppose the PSFCHs... i and PSFCH j All belong to N1 PSFCHs, PSFCH i Actual transmit power Pia / PSFCH j The actual transmit power Pja is equal to PSFCH i Minimum transmit power and PSFCH j The minimum transmit power ratio Pi / Pj, and the sum of the transmit powers of N1 PSFCHs equals Pmax.

[0254] In one embodiment of this disclosure, the method further includes:

[0255] N1 PSFCHs are selected in descending order of PSFCH transmission priority.

[0256] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for example, by the priority field in the Sidelink Control Information (SCI) carried in the PSCCH or PSSCH transmission corresponding to the PSFCH.

[0257] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for instance, by the priority field in the SCI carried in the PSCCH transmission corresponding to the PSFCH.

[0258] For example, in one embodiment of this disclosure, the PSFCH transmission priority can be determined, for instance, by the priority field in the SCI carried in the PSSCH transmission corresponding to the PSFCH.

[0259] In one embodiment of this disclosure, the description of steps 401-404 can be found in the description of step 201, and this embodiment is not limited thereto. The optional examples in this disclosure can be arbitrarily combined, and without contradiction, this disclosure can be combined with steps from other embodiments and optional examples from other embodiments.

[0260] In summary, in the embodiments of this disclosure, by determining N1 PSFCHs out of N PSFCHs, where N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two; determining the number M2 of transmission beams that the terminal device supports for simultaneous use; determining at least one transmission beam based on the number of transmission beams M2; and transmitting N1 PSFCHs using at least one transmission beam. This disclosure provides a processing method for a "PSFCH transmission" scenario, which improves the accuracy of transmission beam determination and reduces the possibility of N1 PSFCHs not being transmitted simultaneously by determining the number M2 of transmission beams that the terminal device supports for simultaneous use and determining the transmission beam based on the number of transmission beams M2.

[0261] Figure 5 This is a flowchart illustrating a PSFCH transmission method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 5 As shown, the method may include the following steps:

[0262] Step 501: Determine a first set, wherein the first set includes at least one first transmit beam combination, and at least two transmit beams in each first transmit beam combination can be used simultaneously;

[0263] Step 502: Based on the first set, determine N1 PSFCHs out of N PSFCHs, where N PSFCHs are PSFCHs to be sent simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two. N1 PSFCHs correspond to a transmission beam combination in the first set.

[0264] Step 503: Transmit N1 PSFCHs using at least two transmit beams from one transmit beam combination in the first set.

[0265] For example, in one embodiment of this disclosure, the term "first" in the first set is used only to distinguish it from the second set and does not specifically refer to a fixed set. For instance, the first set may also change accordingly when the number of combinations included in the first set changes. The first set may, for example, be a collection of at least one transmit beam combination that can be used simultaneously. For example, the transmit beams included in one transmit beam combination of the first set can be used simultaneously.

[0266] For example, in one embodiment of this disclosure, a transmit beam combination in the first set may include transmit beams corresponding to different antenna panels, which may be used simultaneously.

[0267] Furthermore, in one embodiment of this disclosure, determining the first set includes:

[0268] The first set is determined based on at least one of the following:

[0269] The capabilities of the terminal equipment;

[0270] Pre-configuration information of terminal devices;

[0271] Control information received from the base station or network-side equipment;

[0272] Implementation of terminal devices.

[0273] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0274] Based on the first set, determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to a first transmit beam combination in the first set.

[0275] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0276] Determine the transmit beam corresponding to one of the N PSFCHs;

[0277] Determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to a first transmit beam combination in the first set.

[0278] In one embodiment of this disclosure, one PSFCH corresponds to one transmit beam in the transmit beam combination.

[0279] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes at least one of the following:

[0280] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0281] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0282] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0283] For example, in one embodiment of this disclosure, the PSFCH carries a HARQ-acknowledgement (ACK) feedback message of its associated PSCCH or PSSCH, and the target receiving terminal device of the feedback information is the transmitting terminal device of its associated PSCCH or PSSCH. The second-stage SCI information carried in the transmission of the PSCCH or PSSCH associated with the PSFCH includes the source ID information of the transmitting terminal device; the transmitting terminal device of the PSFCH can select different most suitable transmission beams according to different terminal devices.

[0284] For example, in one embodiment of this disclosure, the method further includes at least one of the following:

[0285] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0286] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0287] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0288] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0289] For example, in one embodiment of this disclosure, the method may include: selecting N1 PSFCHs according to the criterion of selecting the most PSFCHs, and selecting a transmit beam combination that can support the transmission of the most PSFCHs.

[0290] For example, in one embodiment of this disclosure, the method may include: selecting a transmit beam according to PSFCH priority, and selecting a transmit beam combination that can support the transmission of the highest priority PSFCH.

[0291] For example, in one embodiment of this disclosure, the method may include: first selecting according to the criterion of selecting the most PSFCHs, and then selecting according to the criterion of the highest priority when multiple transmit beam combinations can support the same number of PSFCHs.

[0292] For example, in one embodiment of this disclosure, the method may include: first selecting according to the highest priority criterion, and then selecting according to the highest PSFCH criterion.

[0293] In one embodiment of this disclosure, the description of steps 501-503 can be found in the description of step 201, and this embodiment is not limited thereto. The optional examples in this disclosure can be arbitrarily combined, and without contradiction, this disclosure can be combined with steps from other embodiments and optional examples from other embodiments.

[0294] In summary, in the embodiments of this disclosure, by determining a first set, wherein the first set includes at least one first transmission beam combination, and at least two transmission beams in each first transmission beam combination can be used simultaneously; based on the first set, N1 PSFCHs out of N PSFCHs are determined, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and the N1 PSFCHs correspond to one transmission beam combination in the first set; and the N1 PSFCHs are transmitted using at least two transmission beams from one transmission beam combination in the first set. This disclosure provides a processing method for a "PSFCH transmission" scenario, which determines a first set of transmission beams that the terminal device supports for simultaneous use, can determine N1 PSFCHs out of N PSFCHs, can improve the matching between the N1 PSFCHs and the first set, can improve the accuracy of determining the N1 PSFCHs, can reduce the situation where the N1 PSFCHs cannot be transmitted simultaneously, and can improve the accuracy of transmitting the N1 PSFCHs.

[0295] Figure 6 This is a flowchart illustrating a PSFCH transmission method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 6 As shown, the method may include the following steps:

[0296] Step 601: Determine the second set, wherein the second set includes at least one second transmission beam combination, and at least two transmission beams in each second transmission beam combination cannot be used simultaneously;

[0297] Step 602: Based on the second set, determine N1 PSFCHs out of N PSFCHs, where N PSFCHs are PSFCHs to be sent simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two. The N1 PSFCHs correspond to different transmission beam combinations in the second set.

[0298] Step 603: Transmit N1 PSFCHs using at least two of the different transmit beam combinations in the second set.

[0299] The second set is determined based on at least one of the following:

[0300] The capabilities of the terminal equipment;

[0301] Pre-configuration information of terminal devices;

[0302] Control information received from the base station or network-side equipment;

[0303] Implementation of terminal devices.

[0304] For example, in one embodiment of this disclosure, the method further includes:

[0305] A second set is determined, wherein the second set includes at least one second transmit beam combination, and the transmit beams in the second transmit beam combination cannot be used simultaneously.

[0306] For example, in one embodiment of this disclosure, determining N1 PSFCHs out of N PSFCHs includes:

[0307] Determine the transmit beam corresponding to one of the N PSFCHs;

[0308] Determine N1 PSFCHs out of N PSFCHs, where the transmit beam corresponding to the first PSFCH among the N1 PSFCHs and the transmit beam corresponding to the second PSFCH among the N1 PSFCHs belong to different combinations of second transmit beams in the second set.

[0309] For example, in one embodiment of this disclosure, N1 PSFCHs out of N PSFCHs can be determined based on a second set.

[0310] For example, in one embodiment of this disclosure, the first PSFCH and the second PSFCH are used to indicate two different PSFCHs among N1 PSFCHs. The first PSFCH and the second PSFCH do not specifically refer to two fixed PSFCHs.

[0311] For example, in one embodiment of this disclosure, at most one transmit beam is selected in each combination in the second set. If there are multiple PSFCHs corresponding to multiple transmit beams in a combination, the PSFCH with the highest priority and its corresponding transmit beam can be selected, and the selected PSFCH is determined as N1 PSFCHs; the transmit beam combination corresponding to the selected PSFCH is determined as the transmit beam of the transmit PSFCH.

[0312] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes at least one of the following:

[0313] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0314] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0315] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0316] For example, in one embodiment of this disclosure, the PSFCH carries a HARQ-acknowledgement (ACK) feedback message of its associated PSCCH or PSSCH, and the target receiving terminal device of the feedback information is the transmitting terminal device of its associated PSCCH or PSSCH. The second-stage SCI information carried in the transmission of the PSCCH or PSSCH associated with the PSFCH includes the source ID information of the transmitting terminal device; the transmitting terminal device of the PSFCH can select different most suitable transmission beams according to different terminal devices.

[0317] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0318] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0319] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0320] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0321] For example, in one embodiment of this disclosure, determining the transmit beam corresponding to one PSFCH out of N PSFCHs includes:

[0322] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0323] For example, in one embodiment of this disclosure, the method further includes at least one of the following:

[0324] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0325] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0326] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0327] For example, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0328] In one embodiment of this disclosure, the description of steps 601-603 can be found in the description of step 201, and this embodiment is not limited thereto. The optional examples in this disclosure can be arbitrarily combined, and without contradiction, this disclosure can be combined with steps from other embodiments and optional examples from other embodiments.

[0329] In summary, in the embodiments of this disclosure, by determining a second set, wherein the second set includes at least one second transmission beam combination, and at least two transmission beams in each second transmission beam combination cannot be used simultaneously; based on the second set, N1 PSFCHs out of N PSFCHs are determined, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and the N1 PSFCHs correspond to different transmission beam combinations in the second set; and at least two transmission beams from the different transmission beam combinations in the second set are used to transmit the N1 PSFCHs. This disclosure provides a processing method for a "PSFCH transmission" scenario. By determining a second set of transmission beams that the terminal device does not support for simultaneous use, N1 PSFCHs out of N PSFCHs can be determined, which can improve the matching between the N1 PSFCHs and the second set, improve the accuracy of determining the N1 PSFCHs, reduce the number of cases where the N1 PSFCHs cannot be transmitted simultaneously, and improve the accuracy of transmitting the N1 PSFCHs.

[0330] For example, in one embodiment of this disclosure, when a terminal device needs to transmit N Physical Direct Feedback Channels (PSFCHs) simultaneously, N1 PSFCHs are determined, and a transmission beam is determined. The terminal device can use the transmission beam to transmit the PSFCHs.

[0331] Optionally, in one embodiment of this disclosure, a specific default transmit beam may be used for transmission, which may be configured by the base station, predefined, or pre-configured; for example, an omnidirectional antenna may be used by default for transmission, or the default beam may be the transmit beam corresponding to the receive beam of a specific side link synchronization signal block (S-SSB) or side link channel state information reference signal (SL CSI-RS) resource.

[0332] Optionally, in one embodiment of this disclosure, a maximum number M of PSFCHs that can be transmitted simultaneously using the default transmit beam is determined. This maximum number can be a predefined fixed value or depend on the capabilities of the terminal device, obtained through pre-configuration or by receiving downlink control signaling from the base station. When N is greater than M, no more than M N1 PSFCHs are selected for transmission according to their priority order. Optionally, the transmission of other PSFCHs is discarded. The transmission power of the N1 PSFCHs is evenly distributed among the UE's maximum transmission power.

[0333] Optionally, in one embodiment of this disclosure, the minimum power P1 used to transmit one PSFCH when using the default transmit beam is determined; N1 PSFCHs are determined to be transmitted based on the minimum power and the maximum power Pmax transmitted by the terminal device, where N1*P1≤Pmax. The transmission of other PSFCHs is discarded.

[0334] Optionally, in one embodiment of this disclosure, the number M of transmit beams that the terminal device can support being used simultaneously is determined. The value of M can be a predefined fixed value, such as 1, 2, or 4; or it can depend on the capabilities of the terminal device, which can be reported to the base station through uplink control signaling or transmitted to other terminal devices through sidelink control signaling.

[0335] Optionally, in one embodiment of this disclosure, the PSFCH transmit beam can be determined by the transmit and / or receive beams of its corresponding PSCCH / PSSCH;

[0336] Optionally, in one embodiment of this disclosure, the value of N1 and N1 PSFCHs are determined according to M, where N1 is less than or equal to M;

[0337] Optionally, in one embodiment of this disclosure, the N1 PSFCHs are transmitted using the transmit beams corresponding to the N1 PSFCHs;

[0338] Optionally, in one embodiment of this disclosure, M is less than the number of PSFCHs that the UE can send simultaneously, M1, and the value of M1 depends on the UE's capabilities; N1 is the minimum value among N, M, and M1.

[0339] Optionally, in one embodiment of this disclosure, based on the above embodiments, the minimum transmission power P1 for transmitting one PSFCH is determined, and the maximum number of PSFCHs that the UE can support transmitting simultaneously, M2, is determined according to P1 and the UE's maximum transmission power Pmax; N1 is the minimum value among N, M, and M2; optionally, the transmission power of N1 PSFCHs is evenly distributed among Pmax.

[0340] Optionally, in one embodiment of this disclosure, based on the above embodiments, for the i-th PSFCH among N PSFCHs, its minimum transmit power Pi is determined according to its corresponding transmit beam, and N1 PSFCHs are selected according to Pi and the UE's maximum transmit power Pmax, such that the sum of the minimum transmit powers corresponding to these N1 PSFCHs does not exceed Pmax; Optionally, Pmax is allocated to the N1 PSFCHs proportionally according to the minimum transmit power of each PSFCH, that is, assuming that PSFCH1 and PSFCHj both belong to the N1 PSFCHs, their actual transmit power Pia / Pja is equal to the ratio of their minimum transmit power Pi / Pj, and the sum of the transmit powers of the N1 PSFCHs is equal to Pmax.

[0341] Optionally, in one embodiment of this disclosure, in the above embodiment, the N1 PSFCHs are selected in descending order of transmission priority corresponding to the PSFCH; the priority of the PSFCH is determined by the priority field in the direct control information (SCI) carried in the transmission of the PSCCH / PSSCH corresponding to the PSFCH.

[0342] Optionally, in one embodiment of this disclosure, a set of combinations of transmit beams that the terminal device can support for simultaneous use is determined, N1 transmit beams are determined according to the set of combinations, and transmit are performed.

[0343] Optionally, in one embodiment of this disclosure, the terminal device determines the combination of transmit beams that can be used simultaneously based on its own capabilities or implementation; for example, transmit beams corresponding to different antenna panels can be used simultaneously.

[0344] Optionally, in one embodiment of this disclosure, N1 PSFCHs are selected, wherein the N1 PSFCHs belong to the same transmit beam combination;

[0345] Optionally, in one embodiment of this disclosure, N1 PSFCHs are selected according to the criterion of selecting the most PSFCHs, and the transmit beam combination that can support the transmission of the most PSFCHs is selected.

[0346] Optionally, in one embodiment of this disclosure, the transmit beam is selected according to the PSFCH priority, and the transmit beam combination that can support the transmission of the most and highest priority PSFCH is selected.

[0347] Optionally, in one embodiment of this disclosure, the combination of the above embodiments may, for example, first select according to the criterion of most PSFCHs, and when multiple transmit beam combinations can support the same number of PSFCHs, then select according to the criterion of most highest priority; or first select according to the criterion of most highest priority, and then select according to the criterion of most PSFCHs.

[0348] Optionally, in one embodiment of this disclosure, a set of combinations of transmit beams that the terminal device cannot support being used simultaneously is determined; for example, transmit beams corresponding to the same antenna panel cannot be used simultaneously.

[0349] Optionally, in one embodiment of this disclosure, N1 PSFCHs are selected, wherein any two PSFCHs among the N1 PSFCHs do not belong to the same combination;

[0350] Optionally, in one embodiment of this disclosure, at most one transmit beam is selected in each combination of the set. If multiple PSFCHs correspond to multiple transmit beams in a combination, the PSFCH with the highest priority and its corresponding transmit beam are selected. The selected PSFCHs are defined as the N1 PSFCHs; the transmit beam combination corresponding to the selected PSFCHs is defined as the transmit beam of the transmit PSFCH.

[0351] It should be noted that the above Figures 3-6 The various embodiments shown can be executed independently or combined without contradiction. This combination includes combinations of the various embodiments, or combinations of one or more steps from the embodiments. This application does not specifically limit the method of combination.

[0352] Figure 7 This is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure, as shown below. Figure 7 As shown, the communication device 700 may include:

[0353] The determining module 701 is used to determine N1 PSFCHs out of N PSFCHs, and at least one transmit beam, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and at least one transmit beam is used to transmit the N1 PSFCHs.

[0354] In summary, in the PSFCH transmitting apparatus of this disclosure, a determining module is used to determine N1 PSFCHs out of N PSFCHs, and at least one transmitting beam. The N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, where N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two. At least one transmitting beam is used to transmit the N1 PSFCHs. In this disclosure, N1 PSFCHs can be determined when the terminal device transmits multiple PSFCHs simultaneously, reducing the possibility of PSFCHs being unable to be transmitted due to the inability to transmit N PSFCHs simultaneously. A mechanism for determining the transmitting beam and a mechanism for transmitting PSFCHs are provided. This disclosure provides a processing apparatus for the scenario of "PSFCH transmission," providing a mechanism for determining the transmitting beam and transmitting PSFCHs when the terminal device transmits multiple PSFCHs simultaneously. This solves the problem of PSFCHs being unable to be transmitted when the number of beams supported by the terminal device for simultaneous transmission exceeds the number of PSFCHs it supports, improving the accuracy of transmitting beam determination and PSFCH transmission.

[0355] Optionally, in one embodiment of this disclosure, the determining module 701, when determining at least one transmit beam, is specifically used for:

[0356] Determine at least one transmit beam as the default transmit beam.

[0357] Optionally, in one embodiment of this disclosure, the default transmission beam includes at least one of the following:

[0358] Omnidirectional beam;

[0359] The transmit beam corresponding to the receive beam of a specific side link synchronization signal block (S-SSB) resource;

[0360] The transmit beam corresponding to the receive beam of the side link channel state information reference signal (SL) CSI-RS resource.

[0361] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs, the determining module 701 is specifically used for:

[0362] Determine the maximum number of PSFCHs that can be transmitted simultaneously, M1, when using the default transmit beam, where M1 is a positive integer and M1 is less than or equal to N;

[0363] Choose N1 PSFCHs from N PSFCHs, where N1 is less than or equal to M1.

[0364] Optionally, in one embodiment of this disclosure, the determining module 701 is used to select N1 PSFCHs from N PSFCHs, including:

[0365] Select N1 PSFCHs from the N PSFCHs according to the PSFCH transmission priority from high to low.

[0366] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs, the determining module 701 is specifically used for:

[0367] Determine the minimum power P1 used to transmit a PSFCH when using the default transmit beam;

[0368] Based on the minimum power and the maximum transmit power Pmax of the terminal device, determine N1 PSFCHs out of N PSFCHs.

[0369] Optionally, in one embodiment of this disclosure, the product of N1 and P1 is less than or equal to Pmax.

[0370] Optionally, in one embodiment of this disclosure, the determining module 701, when determining at least one transmit beam, is specifically used for:

[0371] Determine the number of transmit beams M2 that the terminal device can use simultaneously;

[0372] At least one transmission beam is determined based on the number of transmission beams M2.

[0373] Optionally, in one embodiment of this disclosure, when determining the number M2 of simultaneous transmission beams supported by the terminal device, the determining module 701 is specifically used for:

[0374] Determine the number M2 of transmission beams that the terminal device supports for simultaneous use based on at least one of the following:

[0375] The capabilities of the terminal equipment;

[0376] Pre-configuration information of terminal devices;

[0377] Control information received from the base station or network-side equipment;

[0378] Implementation of terminal devices.

[0379] Optionally, in one embodiment of this disclosure, when determining at least one transmission beam, the determining module 701 is specifically used for at least one of the following:

[0380] At least one transmit beam is determined by at least one of the transmit beams and receive beams of the physical direct control channel PSCCH corresponding to N1 PSFCHs.

[0381] At least one transmit beam is determined by selecting at least one of the transmit beams and receive beams of the Physical Direct Shared Channel (PSSCH) corresponding to the N1 PSFCHs.

[0382] Optionally, in one embodiment of this disclosure, N1 is less than or equal to M2.

[0383] Optionally, in one embodiment of this disclosure, the determining module 701 is further used for at least one of the following:

[0384] Determine the minimum value among N, M2, and M3 as N1, where M3 indicates the number of PSFCHs that the terminal device supports sending simultaneously, and M2 is less than M3;

[0385] Determine the minimum value among N, M2, and M4 as N1; where M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously.

[0386] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0387] Optionally, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0388] Optionally, in one embodiment of this disclosure, the determining module 701 is further configured to:

[0389] N1 PSFCHs are selected in descending order of PSFCH transmission priority.

[0390] Optionally, in one embodiment of this disclosure, the determining module 701 is further configured to:

[0391] A first set is determined, wherein the first set includes at least one first transmit beam combination, and the transmit beams in the first transmit beam combination can be used simultaneously.

[0392] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs, the determining module 701 is specifically used for:

[0393] Based on the first set, determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to a first transmit beam combination in the first set.

[0394] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs based on the first set, the determining module 701 is specifically used for:

[0395] Determine the transmit beam corresponding to one PSFCH out of N PSFCHs;

[0396] Determine N1 PSFCHs out of N PSFCHs, where the transmit beams corresponding to the N1 PSFCHs belong to a first transmit beam combination in the first set.

[0397] Optionally, in one embodiment of this disclosure, the determining module 701 is used to determine the transmission beam corresponding to one of the N PSFCHs, specifically for at least one of the following:

[0398] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0399] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0400] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0401] Optionally, in one embodiment of this disclosure, the determining module 701 is further used for at least one of the following:

[0402] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0403] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0404] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0405] Optionally, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0406] Optionally, in one embodiment of this disclosure, the determining module 701 is further configured to:

[0407] A second set is determined, wherein the second set includes at least one second transmit beam combination, and the transmit beams in the second transmit beam combination cannot be used simultaneously.

[0408] Optionally, in one embodiment of this disclosure, the determining module 701 is further configured to:

[0409] Determine the minimum value among N, M2, and M4 as N1; where M2 is used to indicate the number of transmit beams that the terminal device supports using simultaneously, and M4 is used to indicate the maximum number of PSFCHs that the terminal device supports transmitting simultaneously.

[0410] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0411] Optionally, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0412] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs, the determining module 701 is specifically used for:

[0413] Based on the second set, determine N1 PSFCHs out of N PSFCHs, where the N1 PSFCHs correspond to different combinations of second transmission beams in the second set.

[0414] Optionally, in one embodiment of this disclosure, when determining N1 PSFCHs out of N PSFCHs based on the second set, the determining module 701 is specifically used for:

[0415] Determine the transmit beam corresponding to one of the N PSFCHs;

[0416] Determine N1 PSFCHs out of N PSFCHs, where the transmit beam corresponding to the first PSFCH among the N1 PSFCHs and the transmit beam corresponding to the second PSFCH among the N1 PSFCHs belong to different combinations of second transmit beams in the second set.

[0417] Optionally, in one embodiment of this disclosure, the determining module 701 is used to determine the transmission beam corresponding to one of the N PSFCHs, specifically for at least one of the following:

[0418] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSCCH corresponding to a PSFCH and the receive beam of the PSCCH.

[0419] The transmit beam corresponding to a PSFCH is determined by at least one of the transmit beam of the PSSCH corresponding to a PSFCH and the receive beam of the PSSCH.

[0420] The transmission beam corresponding to a PSFCH is determined by a transmitting terminal device that uses at least one of the PSCCH and PSSCH corresponding to a PSFCH.

[0421] Optionally, in one embodiment of this disclosure, the determining module 701 is further configured to:

[0422] Ensure that N1 is not greater than M2, where M2 indicates the number of transmission beams that the terminal device supports using simultaneously;

[0423] Ensure that N1 is not greater than M4, where M4 indicates the maximum number of PSFCHs that the terminal device can send simultaneously;

[0424] Based on the minimum transmit power Pi corresponding to any PSFCH among the N PSFCHs and the maximum transmit power Pmax of the terminal device, determine that the sum of the minimum transmit powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

[0425] Optionally, in one embodiment of this disclosure, the product of M4 and the minimum power P2 of the terminal device transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

[0426] Figure 8 This is a block diagram of a terminal device UE800 provided in one embodiment of this disclosure. For example, UE800 may be a mobile phone, computer, digital broadcasting terminal device, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0427] Reference Figure 8 UE800 may include at least one of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0428] Processing component 802 typically controls the overall operation of UE 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include at least one processor 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include at least one module to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0429] Memory 804 is configured to store various types of data to support operation on UE 800. Examples of this data include instructions for any application or method operating on UE 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0430] Power supply component 806 provides power to various components of UE800. Power supply component 806 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to UE800.

[0431] The multimedia component 808 includes a screen that provides an output interface between the UE 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or swipe action but also detect the wake-up time and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the UE 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0432] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when UE 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0433] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0434] Sensor assembly 814 includes at least one sensor for providing status assessments of various aspects of UE 800. For example, sensor assembly 814 can detect the on / off state of device 800, the relative positioning of components such as the display and keypad of UE 800, changes in position of UE 800 or one of its components, the presence or absence of user contact with UE 800, orientation or acceleration / deceleration of UE 800, and temperature changes of UE 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0435] Communication component 816 is configured to facilitate wired or wireless communication between UE 800 and other devices. UE 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0436] In an exemplary embodiment, UE800 may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field-programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component to perform the above method.

[0437] Figure 9 This is a block diagram of a network-side device 900 provided in an embodiment of this disclosure. For example, the network-side device 900 can be provided as a network-side device. (Refer to...) Figure 9 The network-side device 900 includes a processing component 922, which further includes at least one processor, and memory resources represented by memory 932 for storing instructions, such as application programs, that can be executed by the processing component 922. The application programs stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform any of the methods described above applied to the network-side device.

[0438] The network-side device 900 may also include a power supply component 926 configured to perform power management of the network-side device 900, a wired or wireless network interface 950 configured to connect the network-side device 900 to a network, and an input / output (I / O) interface 958. The network-side device 900 can operate on an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, Free BSD™, or similar.

[0439] In the embodiments provided above, the methods provided by the present disclosure have been described from the perspectives of the network-side device and the UE, respectively. To implement the functions of the methods provided in the embodiments of the present disclosure, the network-side device and the UE may include hardware structures and software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. One of the above functions can be executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules.

[0440] This disclosure provides a communication device. The communication device may include a transceiver module and a processing module. The transceiver module may include a sending module and / or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiver module can implement both sending and / or receiving functions.

[0441] The communication device can be a terminal device (such as the terminal device in the aforementioned method embodiments), a device within a terminal device, or a device that can be used in conjunction with a terminal device. Alternatively, the communication device can be a network device, a device within a network device, or a device that can be used in conjunction with a network device.

[0442] This disclosure provides another communication device. The communication device can be a network device, a terminal device (such as the terminal device in the foregoing method embodiments), a chip, chip system, or processor that supports the network device in implementing the above methods, or a chip, chip system, or processor that supports the terminal device in implementing the above methods. This device can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0443] A communication device may include one or more processors. The processor may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., network-side equipment, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0444] Optionally, the communication device may further include one or more memories, on which computer programs may be stored. The processor executes the computer programs to cause the communication device to perform the methods described in the above method embodiments. Optionally, the memories may also store data. The communication device and the memories may be provided separately or integrated together.

[0445] Optionally, the communication device may also include a transceiver and an antenna. The transceiver, also known as a transceiver unit, transceiver, or transceiver circuit, is used to implement transmission and reception functions. The transceiver may include a receiver and a transmitter; the receiver, also known as a receiver circuit, is used to implement the receiving function; the transmitter, also known as a transmitter or transmitting circuit, is used to implement the transmitting function.

[0446] Optionally, the communication device may further include one or more interface circuits. The interface circuits are used to receive code instructions and transmit them to the processor. The processor executes the code instructions to cause the communication device to perform the methods described in the above method embodiments.

[0447] The communication device is a terminal device: the processor is used to execute... Figure 2-6 The method shown.

[0448] In one implementation, the processor may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0449] In one implementation, the processor may store a computer program that runs on the processor, causing the communication device to perform the methods described in the above method embodiments. The computer program may be embedded in the processor; in this case, the processor may be implemented in hardware.

[0450] In one implementation, the communication device may include circuitry that performs the functions of transmitting, receiving, or communicating as described in the foregoing method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0451] The communication device described in the above embodiments can be a network device or a terminal device (such as the terminal device in the foregoing method embodiments), but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device is not limited. The communication device can be a standalone device or part of a larger device. For example, the communication device can be:

[0452] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0453] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0454] (3) ASIC, such as modem;

[0455] (4) Modules that can be embedded in other devices;

[0456] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0457] (6) Others, etc.

[0458] When the communication device can be a chip or a chip system, the chip includes a processor and an interface. There can be one or more processors, and multiple interfaces.

[0459] Optionally, the chip also includes a memory for storing necessary computer programs and data.

[0460] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0461] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0462] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0463] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0464] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0465] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0466] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0467] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for transmitting a Physical Direct Feedback Channel (PSFCH), characterized in that, The method is executed by a terminal device and includes: N1 PSFCHs out of N PSFCHs are determined, and at least one transmit beam is determined. The N PSFCHs are the PSFCHs that the terminal device wants to transmit simultaneously. N and N1 are both positive integers. N1 is less than or equal to N and N is greater than or equal to two. The at least one transmit beam is used to transmit the N1 PSFCHs. Determining the at least one transmitting beam includes: Determine the number M2 of transmission beams that the terminal device can use simultaneously; The at least one transmission beam is determined based on the number of transmission beams M2, wherein N1 is less than or equal to M2; Determining the at least one transmission beam further includes at least one of the following: The at least one transmit beam is determined by at least one of the transmit beams of the physical direct control channel PSCCH corresponding to the N1 PSFCHs and the receive beams of the PSCCH. The at least one transmit beam is determined by at least one of the transmit beams of the Physical Direct Shared Channel (PSSCH) corresponding to the N1 PSFCHs and the receive beams of the PSSCHs.

2. The method according to claim 1, characterized in that, Determining the at least one transmitting beam further includes: The at least one transmit beam is determined as the default transmit beam.

3. The method according to claim 2, characterized in that, The default transmission beam includes at least one of the following: Omnidirectional beam; The transmit beam corresponding to the receive beam of a specific side link synchronization signal block (S-SSB) resource; The transmit beam corresponding to the receive beam of the side link channel state information reference signal (SL) CSI-RS resource.

4. The method according to claim 2 or 3, characterized in that, Determining N1 PSFCHs out of N PSFCHs includes: Determine the maximum number M1 of PSFCHs that can be transmitted simultaneously when using the default transmit beam, wherein M1 is a positive integer and M1 is less than or equal to N; Select N1 PSFCHs from the N PSFCHs, where N1 is less than or equal to M1.

5. The method according to claim 4, characterized in that, The step of selecting the N1 PSFCHs from the N PSFCHs includes: According to the PSFCH transmission priority from high to low, select the N1 PSFCHs.

6. The method according to claim 2, characterized in that, Determine N1 PSFCHs out of N PSFCHs, including: Determine the minimum power P1 used to transmit a PSFCH when using the default transmit beam; Based on the minimum power and the maximum transmit power Pmax of the terminal device, determine the N1 PSFCHs among the N PSFCHs.

7. The method according to claim 6, characterized in that, in, The product of N1 and P1 is less than or equal to Pmax.

8. The method according to claim 1, characterized in that, Determining the number M2 of transmission beams that the terminal device supports for simultaneous use includes: The number M2 of transmission beams that the terminal device supports for simultaneous use is determined according to at least one of the following: The capabilities of the terminal device; The pre-configuration information of the terminal device; Control information received from the base station or network-side equipment; The implementation of the terminal device.

9. The method according to any one of claims 1 or 8, characterized in that, The method further includes at least one of the following: The minimum value among N, M2, and M3 is determined to be N1, wherein M3 is used to indicate the number of PSFCHs that the terminal device supports sending simultaneously, and M2 is less than M3; The minimum value among N, M2, and M4 is determined to be N1; wherein, M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously; Based on the minimum transmission power Pi corresponding to any one of the N PSFCHs and the maximum transmission power Pmax of the terminal device, it is determined that the sum of the minimum transmission powers corresponding to N1 of the N PSFCHs does not exceed Pmax.

10. The method according to claim 9, characterized in that, in, The product of M4 and the minimum power P2 of the terminal device for transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

11. The method according to any one of claims 1 or 8, characterized in that, The method further includes: The N1 PSFCHs are selected in descending order of PSFCH transmission priority.

12. The method according to claim 1, characterized in that, The method further includes: A first set is determined, wherein the first set includes at least one first transmit beam combination, and the transmit beams in the first transmit beam combination can be used simultaneously.

13. The method according to claim 12, characterized in that, Determining N1 PSFCHs out of N PSFCHs includes: Based on the first set, determine the N1 PSFCHs among the N PSFCHs, wherein the N1 PSFCHs correspond to a first transmit beam combination in the first set.

14. The method according to claim 13, characterized in that, The step of determining the N1 PSFCHs from the N PSFCHs based on the first set includes: Determine the transmit beam corresponding to one of the N PSFCHs; Determine N1 PSFCHs from the N PSFCHs, wherein the transmit beams corresponding to the N1 PSFCHs belong to a first transmit beam combination in the first set.

15. The method according to claim 14, characterized in that, Determining the transmit beam corresponding to one of the N PSFCHs includes at least one of the following: The transmit beam corresponding to the PSCCH is determined by at least one of the transmit beam of the PSCCH corresponding to the PSFCH. The transmit beam corresponding to the PSSCH is determined by at least one of the transmit beam of the PSSCH corresponding to the PSFCH. The transmission beam corresponding to the PSFCH is determined by a transmitting terminal device using at least one of the PSCCH and PSSCH corresponding to the PSFCH.

16. The method according to claim 13, characterized in that, The method further includes at least one of the following: It is determined that N1 is not greater than M2, wherein M2 is used to indicate the number of transmission beams that the terminal device supports using simultaneously; It is determined that N1 is not greater than M4, wherein M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously; Based on the minimum transmission power Pi corresponding to any one of the N PSFCHs and the maximum transmission power Pmax of the terminal device, it is determined that the sum of the minimum transmission powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

17. The method according to claim 16, characterized in that, in, The product of M4 and the minimum power P2 of the terminal device for transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

18. The method according to claim 1, characterized in that, The method further includes: A second set is determined, wherein the second set includes at least one second transmit beam combination, and the transmit beams in the second transmit beam combination cannot be used simultaneously.

19. The method according to claim 18, characterized in that, Determining N1 PSFCHs out of N PSFCHs includes: Based on the second set, determine the N1 PSFCHs among the N PSFCHs, wherein the N1 PSFCHs correspond to different combinations of second transmit beams in the second set.

20. The method according to claim 19, characterized in that, The step of determining the N1 PSFCHs from the N PSFCHs based on the second set includes: Determine the transmit beam corresponding to one of the N PSFCHs; Determine the N1 PSFCHs among the N PSFCHs, wherein the transmit beam corresponding to the first PSFCH among the N1 PSFCHs and the transmit beam corresponding to the second PSFCH among the N1 PSFCHs belong to different combinations of second transmit beams in the second set.

21. The method according to claim 20, characterized in that, Determining the transmission beam corresponding to one of the N PSFCHs includes at least one of the following: The transmit beam corresponding to the PSCCH is determined by at least one of the transmit beam of the PSCCH corresponding to the PSFCH. The transmit beam corresponding to the PSSCH is determined by at least one of the transmit beam of the PSSCH corresponding to the PSFCH. The transmission beam corresponding to the PSFCH is determined by a transmitting terminal device using at least one of the PSCCH and PSSCH corresponding to the PSFCH.

22. The method according to claim 18, characterized in that, The method further includes at least one of the following: It is determined that N1 is not greater than M2, wherein M2 is used to indicate the number of transmission beams that the terminal device supports using simultaneously; It is determined that N1 is not greater than M4, wherein M4 is used to indicate the maximum number of PSFCHs that the terminal device can send simultaneously; Based on the minimum transmission power Pi corresponding to any one of the N PSFCHs and the maximum transmission power Pmax of the terminal device, it is determined that the sum of the minimum transmission powers corresponding to N1 PSFCHs among the N PSFCHs does not exceed Pmax.

23. The method according to claim 22, characterized in that, in, The product of M4 and the minimum power P2 of the terminal device for transmitting a PSFCH is less than or equal to the maximum transmission power Pmax of the terminal device.

24. A communication device, characterized in that, include: The determining module is used to determine N1 PSFCHs out of N PSFCHs, and at least one transmit beam, wherein the N PSFCHs are PSFCHs to be transmitted simultaneously by the terminal device, N and N1 are both positive integers, N1 is less than or equal to N, and N is greater than or equal to two, and the at least one transmit beam is used to transmit the N1 PSFCHs; The determining module is also used for: Determine the number M2 of transmission beams that the terminal device can use simultaneously; The at least one transmission beam is determined based on the number of transmission beams M2, wherein N1 is less than or equal to M2; The determining module is also used for at least one of the following: The at least one transmit beam is determined by at least one of the transmit beams of the Physical Direct Control Channel (PSCCH) corresponding to the N1 PSFCHs and the receive beams of the PSCCHs; and / or, The at least one transmit beam is determined by at least one of the transmit beams of the Physical Direct Shared Channel (PSSCH) corresponding to the N1 PSFCHs and the receive beams of the PSSCHs.

25. A terminal device, characterized in that, The device includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the method as described in any one of claims 1 to 23.

26. A communication device, characterized in that, include: Processor and interface circuitry, among which The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in any one of claims 1 to 23.

27. A computer-readable storage medium, characterized in that, It is used to store instructions that, when executed, cause the method as described in any one of claims 1 to 23 to be implemented.

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