WO2025138282A1

WO2025138282A1 - Sidelink communication method and apparatus, and terminal, chip and storage medium

Info

Publication number: WO2025138282A1
Application number: PCT/CN2023/143673
Authority: WO
Inventors: 王昊
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2025-07-03
Anticipated expiration: 2026-06-29
Also published as: WO2025138282A9

Abstract

Provided in the embodiments of the present application are a sidelink (SL) communication method and apparatus, and a terminal, a chip and a storage medium. The method comprises: a first terminal receiving beam reporting information sent by a second terminal, wherein the beam reporting information comprises beam reporting information corresponding to an SL CSI-RS, and on the basis of first priority information corresponding to a first PSFCH, the first terminal receives beam reporting information carried by the first PSFCH. Correspondingly, on the basis of the first priority information corresponding to the first PSFCH, the second terminal sends to the first terminal the beam reporting information carried by the first PSFCH.

Description

Sidelink communication method and device, terminal, chip, and storage medium

Technical Field

本申请实施例涉及侧行通信技术领域，具体涉及一种侧行链路的通信方法及装置、终端、芯片、存储介质。The embodiments of the present application relate to the field of sidelink communication technology, and specifically to a sidelink communication method and device, terminal, chip, and storage medium.

Background Art

为了提升侧行(Sidelink)系统的传输速率，侧行通信中可以考虑使用毫米波频段。在侧行毫米波传输系统中，终端之间采用模拟波束的方式进行数据传输。其中，可以使用不同的波束轮询发送不同的SL信道状态信息测量参考信号(Channel State Information Reference Signal，CSI-RS)资源，根据波束上报信息可以选择一个或多个SL CSI-RS资源。但是，终端通过测量现有的SL CSI-RS进行波束管理，大大增加了波束管理的时延，严重影响了波束管理的效率。因此需要对SL CSI-RS进行增强。In order to improve the transmission rate of the sidelink system, the use of millimeter wave frequency bands can be considered in sidelink communications. In the sidelink millimeter wave transmission system, data is transmitted between terminals using analog beams. Different beam polling can be used to send different SL channel state information measurement reference signal (Channel State Information Reference Signal, CSI-RS) resources, and one or more SL CSI-RS resources can be selected based on the beam reporting information. However, the terminal performs beam management by measuring the existing SL CSI-RS, which greatly increases the delay of beam management and seriously affects the efficiency of beam management. Therefore, it is necessary to enhance the SL CSI-RS.

然而，在对SL CSI-RS进行增强并引入不同的SL CSI-RS资源结构后，缺少对SL CSI-RS相对应的优先级信息进行确定的方法，相应的也缺少确定与SL CSI-RS相关联的PSFCH相对应的优先级信息的相关方案，从而无法保证波束管理机制的有效性，进而降低了通信可靠性。However, after enhancing the SL CSI-RS and introducing different SL CSI-RS resource structures, there is a lack of methods to determine the priority information corresponding to the SL CSI-RS, and correspondingly, there is a lack of relevant schemes to determine the priority information corresponding to the PSFCH associated with the SL CSI-RS, thereby failing to guarantee the effectiveness of the beam management mechanism, thereby reducing communication reliability.

发明内容Summary of the invention

本申请实施例提供一种侧行链路的通信方法及装置、终端、芯片、计算机可读存储介质、计算机程序产品、计算机程序。Embodiments of the present application provide a side link communication method and apparatus, a terminal, a chip, a computer-readable storage medium, a computer program product, and a computer program.

第一方面，本申请实施例提供了一种侧行链路的通信方法，所述方法包括：In a first aspect, an embodiment of the present application provides a sidelink communication method, the method comprising:

第一终端接收第二终端发送的波束上报信息；其中，所述波束上报信息包括SL CSI-RS对应的波束上报信息，所述第一终端基于第一PSFCH对应的第一优先级信息接收所述第一PSFCH承载的所述波束上报信息。The first terminal receives beam reporting information sent by the second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

第二方面，本申请实施例提供了一种侧行链路的通信方法，所述方法包括：In a second aspect, an embodiment of the present application provides a sidelink communication method, the method comprising:

第二终端向第一终端发送波束上报信息；其中，所述波束上报信息包括SL CSI-RS对应的波束上报信息，所述第二终端基于第一PSFCH对应的第一优先级信息发送所述第一PSFCH承载的所述波束上报信息。The second terminal sends beam reporting information to the first terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

第三方面，本申请实施例提供了一种侧行链路的通信装置，应用于第一终端，所述装置包括：In a third aspect, an embodiment of the present application provides a sidelink communication device, applied to a first terminal, the device comprising:

接收单元，用于接收第二终端发送的波束上报信息；其中，所述波束上报信息包括SL CSI-RS对应的波束上报信息，所述第一终端基于第一PSFCH对应的第一优先级信息接收所述第一PSFCH承载的所述波束上报信息。A receiving unit, used for receiving beam reporting information sent by a second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

第四方面，本申请实施例提供了一种侧行链路的通信装置，应用于第二终端，所述装置包括：In a fourth aspect, an embodiment of the present application provides a sidelink communication device, applied to a second terminal, the device comprising:

发送单元，用于向第一终端发送波束上报信息；其中，所述波束上报信息包括SL CSI-RS对应的波束上报信息，所述第二终端基于第一PSFCH对应的第一优先级信息发送所述第一PSFCH承载的所述波束上报信息。A sending unit, used for sending beam reporting information to a first terminal; wherein the beam reporting information includes beam reporting information corresponding to SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

第五方面，本申请实施例提供了一种终端，该终端包括存储器和处理器；其中，存储器，用于存储计算机可执行指令；处理器，与该存储器连接，用于通过执行该计算机可执行指令，实现如上述任一方面所述的方法。In a fifth aspect, an embodiment of the present application provides a terminal comprising a memory and a processor; wherein the memory is used to store computer-executable instructions; and the processor is connected to the memory and is used to implement a method as described in any of the above aspects by executing the computer-executable instructions.

第六方面，本申请实施例提供了一种芯片，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述任一方面所述的方法。In a sixth aspect, an embodiment of the present application provides a chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as described in any of the above aspects.

第七方面，本申请实施例提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，计算机程序被至少一个处理器执行时实现如上述任一方面所述的方法。In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by at least one processor, it implements the method described in any of the above aspects.

第八方面，本申请实施例提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行时实现如上述任一方面所述的方法。In an eighth aspect, an embodiment of the present application provides a computer program product, comprising computer program instructions, which enable a computer to implement the method described in any of the above aspects when executed.

第九方面，本申请实施例提供了一种计算机程序，所述计算机程序使得计算机执行时实现如上述任一方面所述的方法。In a ninth aspect, an embodiment of the present application provides a computer program, which enables a computer to implement the above The method described in any aspect.

本申请实施例提出了一种侧行链路的通信方案，第一终端接收第二终端发送的波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第一终端基于第一PSFCH对应的第一优先级信息接收第一PSFCH承载的波束上报信息。相应地，第二终端基于第一PSFCH对应的第一优先级信息向第一终端发送第一PSFCH承载的波束上报信息。也就是说，在本申请的实施例中，针对承载SL CSI-RS对应的波束上报信息的PSFCH，可以引入该PSFCH对应的优先级信息，从而可以利用PSFCH的优先级信息进行波束上报信息的接收或发送。由此可见，本申请实施例通过确定与SL CSI-RS相关联的PSFCH的优先级信息来进一步对PSFCH发送/接收机制进行了相应的优化，完善了终端发送和接收PSFCH的相关机制，从而保证了波束管理机制的有效性，进而提升了通信可靠性。The embodiment of the present application proposes a side link communication scheme, in which a first terminal receives beam reporting information sent by a second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH. Correspondingly, the second terminal sends the beam reporting information carried by the first PSFCH to the first terminal based on the first priority information corresponding to the first PSFCH. That is to say, in the embodiment of the present application, for the PSFCH carrying the beam reporting information corresponding to the SL CSI-RS, the priority information corresponding to the PSFCH can be introduced, so that the priority information of the PSFCH can be used to receive or send the beam reporting information. It can be seen that the embodiment of the present application further optimizes the PSFCH sending/receiving mechanism by determining the priority information of the PSFCH associated with the SL CSI-RS, and improves the relevant mechanism of the terminal sending and receiving the PSFCH, thereby ensuring the effectiveness of the beam management mechanism and improving the communication reliability.

BRIEF DESCRIPTION OF THE DRAWINGS

此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

图1-1是本申请实施例提供的网络覆盖范围内侧行通信的示意图；FIG1-1 is a schematic diagram of sideline communication within the network coverage area provided by an embodiment of the present application;

图1-2是本申请实施例提供的部分网络覆盖侧行通信的示意图；Figure 1-2 is a schematic diagram of partial network coverage side communication provided by an embodiment of the present application;

图1-3是本申请实施例提供的网络覆盖外侧行通信的示意图；1-3 are schematic diagrams of network coverage outer line communication provided by embodiments of the present application;

图1-4是本申请实施例提供的有中央控制节点的侧行通信的示意图；1-4 are schematic diagrams of sideline communications with a central control node provided in embodiments of the present application;

图2-1是本申请实施例提供的单播传输方式的示意图；FIG2-1 is a schematic diagram of a unicast transmission method provided in an embodiment of the present application;

图2-2是本申请实施例提供的组播传输方式的示意图；FIG2-2 is a schematic diagram of a multicast transmission method provided in an embodiment of the present application;

图2-3是本申请实施例提供的广播传输方式的示意图；2-3 is a schematic diagram of a broadcast transmission method provided in an embodiment of the present application;

图3-1是本申请实施例提供的NR-V2X帧结构示意图一；FIG3-1 is a schematic diagram of the NR-V2X frame structure provided in an embodiment of the present application;

图3-2是本申请实施例提供的NR-V2X帧结构示意图二；FIG3-2 is a second schematic diagram of the NR-V2X frame structure provided in an embodiment of the present application;

图4是本申请实施例提供的PSSCH的传输示意图；FIG4 is a schematic diagram of PSSCH transmission provided in an embodiment of the present application;

图5是本申请实施例提供的第二阶SCI的映射方式示意图；FIG5 is a schematic diagram of a mapping method of a second-order SCI provided in an embodiment of the present application;

图6是本申请实施例提供的一种SL CSI-RS时频位置示意图；FIG6 is a schematic diagram of the time-frequency position of an SL CSI-RS provided in an embodiment of the present application;

图7是本申请实施例提供的不使用模拟波束的系统示意图；FIG7 is a schematic diagram of a system without using analog beams provided in an embodiment of the present application;

图8是本申请实施例提供的使用模拟波束的系统示意图；FIG8 is a schematic diagram of a system using an analog beam provided in an embodiment of the present application;

图9是本申请实施例提供的SL CSI-RS增强方式一；FIG9 is a first SL CSI-RS enhancement method provided in an embodiment of the present application;

图10是本申请实施例提供的SL CSI-RS增强方式二；FIG10 is a second SL CSI-RS enhancement method provided in an embodiment of the present application;

图11是本申请实施例提供的侧行链路的通信方法的实现流程示意图一；FIG11 is a schematic diagram of a first implementation flow of a sidelink communication method provided in an embodiment of the present application;

图12是本申请实施例提供的PSFCH与SL CSI-RS的关联关系的示意图一；FIG12 is a schematic diagram 1 of the association relationship between PSFCH and SL CSI-RS provided in an embodiment of the present application;

图13是本申请实施例提供的PSFCH与SL CSI-RS的关联关系的示意图二；FIG13 is a second schematic diagram of the association relationship between PSFCH and SL CSI-RS provided in an embodiment of the present application;

图14是本申请实施例提供的接收第一PSFCH的实现示意图一；FIG14 is a schematic diagram of an implementation of receiving a first PSFCH provided in an embodiment of the present application;

图15是本申请实施例提供的接收第一PSFCH的实现示意图二；FIG15 is a second schematic diagram of an implementation of receiving a first PSFCH provided in an embodiment of the present application;

图16是本申请实施例提供的接收第一PSFCH的实现示意图三；FIG16 is a third schematic diagram of an implementation of receiving a first PSFCH provided in an embodiment of the present application;

图17是本申请实施例提供的侧行链路的通信方法的实现流程示意图二；FIG17 is a second schematic diagram of an implementation flow of a sidelink communication method provided in an embodiment of the present application;

图18是本申请实施例提供的发送第一PSFCH的实现示意图一；FIG18 is a schematic diagram of an implementation of sending a first PSFCH provided in an embodiment of the present application;

图19是本申请实施例提供的发送第一PSFCH的实现示意图二；FIG19 is a second schematic diagram of an implementation of sending a first PSFCH provided in an embodiment of the present application;

图20是本申请实施例提供的发送第一PSFCH的实现示意图三；FIG20 is a third schematic diagram of an implementation of sending a first PSFCH provided in an embodiment of the present application;

图21是本申请实施例提供的侧行链路的通信方法的实现流程示意图三；FIG21 is a third schematic diagram of an implementation flow of a sidelink communication method provided in an embodiment of the present application;

图22是本申请实施例提供的发送第一PSFCH的实现示意图四；FIG22 is a fourth schematic diagram of an implementation of sending a first PSFCH provided in an embodiment of the present application;

图23是本申请实施例提供的发送第一PSFCH的实现示意图五；FIG23 is a schematic diagram of a fifth implementation of sending a first PSFCH provided in an embodiment of the present application;

图24是本申请实施例提供的侧行链路的通信方法的实现流程示意图四；FIG24 is a fourth schematic diagram of an implementation flow of a sidelink communication method provided in an embodiment of the present application;

图25是本申请实施例提供的侧行链路的通信装置的结构组成示意图一；FIG25 is a schematic diagram of the first structure of a side link communication device provided in an embodiment of the present application;

图26是本申请实施例提供的侧行链路的通信装置的结构组成示意图二；FIG26 is a second schematic diagram of the structure of the side link communication device provided in an embodiment of the present application;

图27是本申请实施例提供的一种通信设备示意性结构图；FIG27 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

图28是本申请实施例的芯片的示意性结构图。 FIG. 28 is a schematic structural diagram of a chip according to an embodiment of the present application.

DETAILED DESCRIPTION

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

本申请实施例的技术方案可以应用于各种侧行通信系统(也可以简称为侧行系统)，为便于理解本申请实施例的技术方案，以下对侧行通信系统中的相关技术进行说明，以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。The technical solutions of the embodiments of the present application can be applied to various side communication systems (also referred to as side communication systems for short). To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies in the side communication systems are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

不同网络覆盖环境下的侧行通信Sideline communication in different network coverage environments

在侧行通信中，根据进行通信的终端所处的网络覆盖情况，可以分为网络覆盖内侧行通信，部分网络覆盖侧行通信，网络覆盖外侧行通信，及有中央控制节点的侧行通信，分别如图1-1，图1-2，图1-3和图1-4所示。In sideline communication, according to the network coverage of the communicating terminals, it can be divided into sideline communication within network coverage, sideline communication with partial network coverage, sideline communication outside network coverage, and sideline communication with a central control node, as shown in Figure 1-1, Figure 1-2, Figure 1-3 and Figure 1-4 respectively.

如图1-1所示，在网络覆盖内侧行通信中，所有进行侧行通信的终端(如图1-1中的终端1和终端2)均处于同一基站的覆盖范围内，从而，上述终端均可以通过接收基站的配置信令，基于相同的侧行配置进行侧行通信。As shown in Figure 1-1, in the sideline communication within the network coverage, all terminals performing sideline communication (such as terminal 1 and terminal 2 in Figure 1-1) are within the coverage of the same base station. Therefore, the above terminals can all perform sideline communication based on the same sideline configuration by receiving the configuration signaling of the base station.

如图1-2所示，在部分网络覆盖侧行通信情况下，部分进行侧行通信的终端(如图1-2中的终端1)位于基站的覆盖范围内，这部分终端终端能够接收到基站的配置信令，而且根据基站的配置进行侧行通信。而位于网络覆盖范围外的终端(如图1-2中的终端2)，无法接收基站的配置信令，在这种情况下，网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的侧行广播信道(Physical Sidelink Broadcast Channel，PSBCH)中携带的信息确定侧行配置，进行侧行通信。As shown in Figure 1-2, in the case of partial network coverage of sidelink communication, some terminals performing sidelink communication (such as terminal 1 in Figure 1-2) are located within the coverage of the base station. These terminals can receive the configuration signaling of the base station and perform sidelink communication according to the configuration of the base station. However, terminals outside the network coverage (such as terminal 2 in Figure 1-2) cannot receive the configuration signaling of the base station. In this case, the terminals outside the network coverage will determine the sidelink configuration according to the pre-configuration information and the information carried in the sidelink broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) sent by the terminals within the network coverage, and perform sidelink communication.

如图1-3所示，对于网络覆盖外侧行通信，所有进行侧行通信的终端(如图1-3中的终端1和终端2)均位于网络覆盖范围外，所有终端均根据预配置信息确定侧行配置进行侧行通信。As shown in Figure 1-3, for sideline communications outside the network coverage, all terminals performing sideline communications (such as terminal 1 and terminal 2 in Figure 1-3) are located outside the network coverage, and all terminals determine the sideline configuration according to the pre-configuration information to perform sideline communications.

如图1-4所示，对于有中央控制节点的侧行通信，多个终端构成一个通信组，该通信组内具有中央控制节点(如图1-4中的终端1)，又可以成为组头终端(Cluster Header，CH)，该中央控制节点具有以下功能之一：负责通信组的建立；组成员的加入、离开；进行资源协调，为其他终端(如图1-4中的终端2、终端3)分配侧行传输资源，接收其他终端的侧行反馈信息；与其他通信组进行资源协调等功能。As shown in Figure 1-4, for side communication with a central control node, multiple terminals constitute a communication group. The communication group has a central control node (such as terminal 1 in Figure 1-4), which can also become a cluster head terminal (Cluster Header, CH). The central control node has one of the following functions: responsible for the establishment of the communication group; the joining and leaving of group members; coordinating resources, allocating side transmission resources to other terminals (such as terminal 2 and terminal 3 in Figure 1-4), and receiving side feedback information from other terminals; coordinating resources with other communication groups, etc.

侧行系统中的终端可以是任意终端，其包括但不限于与网络设备和/或其它终端采用有线或者无线连接的终端。例如，终端可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、IoT设备、卫星手持终端、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进网络中的终端设备等。The terminal in the sideline system can be any terminal, including but not limited to a terminal that is connected to a network device and/or other terminals by wire or wireless. For example, a terminal can refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

侧行通信中的资源选择方式Resource selection method in sideline communication

设备到设备通信是基于设备到设备(Device to Device，D2D)的一种侧行链路传输技术，与传统的蜂窝系统中通信数据通过基站接收或者发送的方式不同，因此具有更高的频谱效率以及更低的传输时延。侧行通信中采用终端到终端直接通信的方式，3GPP定义了两种传输模式：第一模式和第二模式。Device-to-device communication is a sidelink transmission technology based on device-to-device (D2D). It is different from the traditional cellular system where communication data is received or sent by base stations, so it has higher spectrum efficiency and lower transmission delay. Sidelink communication adopts terminal-to-terminal direct communication. 3GPP defines two transmission modes: first mode and second mode.

第一模式：终端的传输资源是由基站分配的，终端根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。如图1-1所示，终端位于网络覆盖范围内，网络为终端分配侧行传输使用的传输资源。Mode 1: The transmission resources of the terminal are allocated by the base station. The terminal sends data on the sidelink according to the resources allocated by the base station. The base station can allocate resources for single transmission or semi-static transmission to the terminal. As shown in Figure 1-1, the terminal is within the coverage of the network, and the network allocates transmission resources for the terminal to use for sidelink transmission.

第二模式：终端在资源池中选取一个资源进行数据的传输。如图1-3所示，终端位于小区覆盖范围外，终端在预配置的资源池中自主选取传输资源进行侧行传输；或者在图1-1所示，终端在网络配置的资源池中自主选取传输资源进行侧行传输。The second mode: The terminal selects a resource in the resource pool for data transmission. As shown in Figure 1-3, the terminal is outside the coverage of the cell, and the terminal autonomously selects a transmission resource from the pre-configured resource pool for side transmission; or as shown in Figure 1-1, the terminal autonomously selects a transmission resource from the resource pool configured by the network for side transmission.

需要说明的是，本申请实施例中，第一模式也可以称为第一资源选择模式或者模式1，第二模式也可以称为第二资源选择模式或者模式2。本申请实施例的技术方案对第一模式和第二模式的名称不做限制。It should be noted that in the embodiment of the present application, the first mode may also be referred to as the first resource selection mode or mode 1, and the second mode may also be referred to as the second resource selection mode or mode 2. The technical solution of the embodiment of the present application does not limit the names of the first mode and the second mode.

NR-V2X中的传输方式Transmission method in NR-V2X

在NR-V2X中，需要支持自动驾驶，因此对车辆之间数据交互提出了更高的要求，如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。In NR-V2X, autonomous driving needs to be supported, which places higher requirements on data exchange between vehicles, such as higher throughput. Throughput, lower latency, higher reliability, wider coverage, more flexible resource allocation, etc.

在LTE-V2X中，支持广播传输方式，在NR-V2X中，引入了单播和组播的传输方式。对于单播传输，其接收端只有一个终端，如图2-1所示，终端1和终端2之间进行单播传输。对于组播传输，其接收端是一个通信组内的所有终端，或者是在一定传输距离内的所有终端，如图2-2所示，终端1、终端2、终端3和终端4构成一个通信组，其中终端1发送数据，该组内的其他终端都是接收端。对于广播传输方式，其接收端是发送端周围的任意一个终端，如图2-3所示，终端1是发送端，其周围的其他终端，终端2至终端6都是接收端。In LTE-V2X, broadcast transmission is supported, and in NR-V2X, unicast and multicast transmission are introduced. For unicast transmission, there is only one terminal at the receiving end. As shown in Figure 2-1, unicast transmission is performed between terminal 1 and terminal 2. For multicast transmission, the receiving end is all terminals in a communication group, or all terminals within a certain transmission distance. As shown in Figure 2-2, terminal 1, terminal 2, terminal 3, and terminal 4 constitute a communication group, where terminal 1 sends data, and other terminals in the group are receiving ends. For broadcast transmission, the receiving end is any terminal around the sending end. As shown in Figure 2-3, terminal 1 is the sending end, and other terminals around it, terminal 2 to terminal 6, are all receiving ends.

NR-V2X中的2阶SCI机制Second-order SCI mechanism in NR-V2X

在NR-V2X中引入2阶侧行控制信息(Sidelink Control Information，SCI)，第一阶SCI承载在物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)中，用于指示物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的传输资源、预留资源信息、调制编码策略(Modulation and Coding Scheme，MCS)等级、优先级数值等信息，第二阶SCI在PSSCH的资源中发送，利用PSSCH的解调参考信号(Demodulation Reference Signal，DMRS)进行解调，用于指示发送端ID、接收端ID、混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)ID、新数据指示(New Data indicator，NDI)等用于数据解调的信息。The second-order sidelink control information (SCI) is introduced in NR-V2X. The first-order SCI is carried in the physical sidelink control channel (PSCCH) to indicate the transmission resources, reserved resource information, modulation and coding scheme (MCS) level, priority value and other information of the physical sidelink shared channel (PSSCH). The second-order SCI is sent in the resources of PSSCH and demodulated using the demodulation reference signal (DMRS) of PSSCH. It is used to indicate the sender ID, receiver ID, hybrid automatic repeat request (HARQ) ID, new data indicator (NDI) and other information used for data demodulation.

NR-V2X系统帧结构NR-V2X system frame structure

示例性地，NR-V2X中的时隙结构如图3-1和图3-2所示，一个时隙包括14个侧行符号，图3-1和图3-2中的每个矩形框代表一个侧行符号，侧行符号可以是正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号(也可以简称为符号)。Exemplarily, the time slot structure in NR-V2X is shown in Figures 3-1 and 3-2. One time slot includes 14 side symbols. Each rectangular box in Figures 3-1 and 3-2 represents a side symbol. The side symbol can be an orthogonal frequency division multiplexing (OFDM) symbol (also referred to as a symbol for short).

图3-1为时隙中不包括物理侧行反馈信道(Physical Sidelink Feedback Channel，PSFCH)的时隙结构；图3-2为时隙中包括PSFCH的时隙结构。在图3-1和图3-2中，PSCCH在时域上从时隙的第二个侧行符号开始，占用2个或3个符号，在频域上可以占用{10，12 15，20，25}个物理资源块(Physical Resource Block，PRB)。为了降低终端对PSCCH的盲检测复杂度，在一个资源池内只允许配置一个PSCCH符号个数和PRB个数。另外，因为子信道为NR-V2X中PSSCH资源分配的最小粒度，PSCCH占用的PRB个数必须小于或等于资源池内一个子信道中包含的PRB个数，以免对PSSCH资源选择或分配造成额外的限制。PSSCH在时域上也是从时隙的第二个侧行符号开始。时隙中的最后一个侧行符号为保护间隔(Guard Period，GP)符号，其余符号映射至PSSCH。时隙中的第一个侧行符号是第二个侧行符号的重复，通常接收端将第一个侧行符号用作自动增益控制(Automatic Gain Control，AGC)符号，该符号上的数据通常不用于数据解调。PSSCH在频域上占据K(K≥1)个子信道，每个子信道包括N(N≥1)个连续的PRB。在图3-2中，时隙包含PSFCH，时隙中倒数第二个和倒数第三个符号用作PSFCH传输，在PSFCH之前的一个符号用作GP符号。Figure 3-1 shows the time slot structure without Physical Sidelink Feedback Channel (PSFCH) in the time slot; Figure 3-2 shows the time slot structure including PSFCH in the time slot. In Figures 3-1 and 3-2, PSCCH starts from the second sidelink symbol of the time slot in the time domain, occupies 2 or 3 symbols, and can occupy {10, 12 15, 20, 25} Physical Resource Blocks (PRBs) in the frequency domain. In order to reduce the complexity of the terminal's blind detection of PSCCH, only one number of PSCCH symbols and PRBs are allowed to be configured in a resource pool. In addition, because the subchannel is the minimum granularity of PSSCH resource allocation in NR-V2X, the number of PRBs occupied by PSCCH must be less than or equal to the number of PRBs contained in a subchannel in the resource pool, so as to avoid additional restrictions on PSSCH resource selection or allocation. PSSCH also starts from the second sideline symbol of the time slot in the time domain. The last sideline symbol in the time slot is the Guard Period (GP) symbol, and the remaining symbols are mapped to PSSCH. The first sideline symbol in the time slot is a repetition of the second sideline symbol. Usually, the receiver uses the first sideline symbol as an Automatic Gain Control (AGC) symbol, and the data on this symbol is usually not used for data demodulation. PSSCH occupies K (K≥1) subchannels in the frequency domain, and each subchannel includes N (N≥1) consecutive PRBs. In Figure 3-2, the time slot contains PSFCH, the second to last and third to last symbols in the time slot are used for PSFCH transmission, and the symbol before PSFCH is used as a GP symbol.

侧行链路PSSCHSidelink PSSCH

在NR-V2X中，PSSCH用于承载第二阶SCI和数据信息。第二阶SCI采用Polar编码方式，固定采用QPSK调制。PSSCH的数据部分采用低密度奇偶校验码(Low Density Parity Check，LDPC)，支持的最高调制阶数为256QAM。In NR-V2X, PSSCH is used to carry the second-order SCI and data information. The second-order SCI uses Polar coding and fixed QPSK modulation. The data part of PSSCH uses Low Density Parity Check (LDPC) and supports the highest modulation order of 256QAM.

在NR-V2X中，PSSCH最多支持两个流传输，并且采用单位预编码矩阵将两个层上的数据映射到两个天线端口，在一个PSSCH中最多只能发送一个TB。然而，和PSSCH数据部分的发送方式不同，当PSSCH采用双流发送方式时，第二阶SCI在两个流上发送的调制符号完全相同，这样的设计可以保证第二阶SCI在高相关信道下的接收性能。In NR-V2X, PSSCH supports up to two stream transmissions, and uses a unit precoding matrix to map the data on the two layers to two antenna ports. At most, one TB can be sent in one PSSCH. However, unlike the transmission method of the PSSCH data part, when PSSCH adopts a dual-stream transmission method, the modulation symbols sent by the second-order SCI on the two streams are exactly the same. This design can ensure the reception performance of the second-order SCI in highly correlated channels.

由于在NR-V2X中一个PSSCH的最大重传次数为32次，如果资源池内存在PSFCH资源，而且PSFCH资源的配置周期为2或4，则一个PSSCH的不同传输所在的时隙内可用的OFDM符号可能会发生变化，图4是本申请实施例提供的PSSCH的传输示意图，如图4所示。如果按照一个时隙内真实的OFDM符号数计算可能会由于一个时隙内可用于PSSCH传输的符号个数不同导致Q′_SCI2不同，而Q′_SCI2的改变会导致PSSCH承载的TB的大小的变化，如下文所述。为了保证PSSCH多次传输中TBS保持不变，在计算时并没有采用真实的PSFCH符号数，另外在计算时，可能在重传过程中发生变化的PSSCH DMRS占用的RE个数和PT-RS占用的RE个数也没有考虑在内。Since the maximum number of retransmissions of a PSSCH in NR-V2X is 32, if there are PSFCH resources in the resource pool and the configuration period of the PSFCH resources is 2 or 4, the OFDM symbols available in the time slots where different transmissions of a PSSCH are located may change. FIG4 is a transmission diagram of the PSSCH provided in an embodiment of the present application, as shown in FIG4. If the actual number of OFDM symbols in a time slot is calculated The Q′ _SCI2 may be different due to the different number of symbols available for PSSCH transmission in a time slot, and the change of Q′ _SCI2 will cause the size of the TB carried by PSSCH to change, as described below. In order to ensure that the TBS remains unchanged during multiple transmissions of PSSCH, The actual number of PSFCH symbols is not used. The number of REs occupied by the PSSCH DMRS and the number of REs occupied by the PT-RS, which may change during the retransmission process, are not taken into account.

图5是本申请实施例提供的第二阶SCI的映射方式示意图，第二阶SCI的码率可以在一定范围内动态调整，具体采用的码率由第一阶SCI指示，所以即使在码率改变后接收端也无需对第二阶SCI 进行盲检测。第二阶SCI的调制符号从第一个PSSCH DMRS所在的符号采用先频域后时域的方式开始映射，在DMRS所在的OFDM符号上第二阶SCI映射到未被DMRS占用的RE上，如图5所示。FIG5 is a schematic diagram of a mapping method of the second-order SCI provided in an embodiment of the present application. The code rate of the second-order SCI can be dynamically adjusted within a certain range. The specific code rate used is indicated by the first-order SCI. Therefore, even after the code rate changes, the receiving end does not need to adjust the second-order SCI. The modulation symbol of the second-order SCI is mapped from the symbol where the first PSSCH DMRS is located in the frequency domain first and then in the time domain. On the OFDM symbol where the DMRS is located, the second-order SCI is mapped to the RE not occupied by the DMRS, as shown in FIG5 .

在一个资源池内PSSCH的数据部分可以采用多个不同的MCS表格，包括常规64QAM MCS表格，256QAM MCS表格，和低频谱效率64QAM MCS表格，而在一次传输中具体采用的MCS表格由第一阶SCI中的“MCS表格指示”域指示。为了控制PAPR，PSSCH必须采用连续的PRB发送，由于子信道为PSSCH的最小频域资源粒度，这就要求PSSCH必须占用连续的子信道。The data part of PSSCH in a resource pool can use multiple different MCS tables, including the conventional 64QAM MCS table, 256QAM MCS table, and the low spectrum efficiency 64QAM MCS table. The specific MCS table used in a transmission is indicated by the "MCS table indication" field in the first-order SCI. In order to control PAPR, PSSCH must be sent using continuous PRBs. Since the subchannel is the minimum frequency domain resource granularity of PSSCH, this requires that PSSCH must occupy continuous subchannels.

侧行链路CSI-RSSidelink CSI-RS

为了更好的支持单播通信，NR-V2X中支持SL CSI-RS，SL CSI-RS只有满足以下3个条件时才会发送：In order to better support unicast communication, NR-V2X supports SL CSI-RS. SL CSI-RS will only be sent when the following three conditions are met:

·UE发送对应的PSSCH，也就是说，UE不能只发送SL CSI-RS；UE sends the corresponding PSSCH, that is, UE cannot only send SL CSI-RS;

·高层信令激活了侧行CSI上报；· Sidelink CSI reporting is activated by high-level signaling;

·在高层信令激活侧行CSI上报的情况下，UE发送的二阶SCI中的相应比特触发了侧行CSI上报。When the sidelink CSI reporting is activated by higher layer signaling, the corresponding bit in the second-order SCI sent by the UE triggers the sidelink CSI reporting.

SL CSI-RS支持的最大端口数为2，两个端口时不同端口的SL CSI-RS在同一个OFDM符号的相邻两个RE上通过码分的方式复用，在一个PRB内每个端口的SLCSI-RS的个数为1，即密度为1。所以，在一个PRB内SL CSI-RS最多只会出现在一个OFDM符号上，这个OFDM符号的具体位置由发送终端确定，为了避免对PSCCH和第二阶SCI的资源映射造成影响，SL CSI-RS不能与PSCCH和第二阶SCI位于同一个OFDM符号。由于PSSCH DMRS所在OFDM符号的信道估计精度较高，而且两个端口的SL CSI-RS将在频域上占用两个连续的RE，所以SL-CSI-RS也不能和PSSCH的DMRS发送在同一个OFDM符号上。SL CSI-RS所在的OFDM符号的位置由PC5RRC中的sl-CSI-RS-FirstSymbol参数指示。The maximum number of ports supported by SL CSI-RS is 2. When there are two ports, the SL CSI-RS of different ports are multiplexed by code division on two adjacent REs of the same OFDM symbol. The number of SL CSI-RS of each port in a PRB is 1, that is, the density is 1. Therefore, SL CSI-RS will appear in at most one OFDM symbol in a PRB. The specific position of this OFDM symbol is determined by the transmitting terminal. In order to avoid affecting the resource mapping of PSCCH and the second-order SCI, SL CSI-RS cannot be located in the same OFDM symbol as PSCCH and the second-order SCI. Since the channel estimation accuracy of the OFDM symbol where the PSSCH DMRS is located is high, and the SL CSI-RS of the two ports will occupy two consecutive REs in the frequency domain, the SL-CSI-RS cannot be sent on the same OFDM symbol as the PSSCH DMRS. The position of the OFDM symbol where the SL CSI-RS is located is indicated by the sl-CSI-RS-FirstSymbol parameter in PC5RRC.

SL CSI-RS在一个PRB内占用的第一个RE的位置由PC5RRC中的sl-CSI-RS-FreqAllocation参数指示，如果SL CSI-RS为一个端口，该参数为长度为12的比特位图，对应一个PRB内的12个RE，如果SL CSI-RS为两个端口，该参数为长度为6的比特位图，在这种情况下SL CSI-RS占用2f(1)和2f(1)+1两个RE，其中f(1)表示值为1的比特在上述比特位图中的索引。SL CSI-RS的频域位置也是由发送终端确定，但是确定的SL CSI-RS的频域位置不能和PT-RS发生冲突。The position of the first RE occupied by SL CSI-RS in a PRB is indicated by the sl-CSI-RS-FreqAllocation parameter in PC5RRC. If SL CSI-RS is one port, this parameter is a bitmap with a length of 12, corresponding to 12 REs in a PRB. If SL CSI-RS is two ports, this parameter is a bitmap with a length of 6. In this case, SL CSI-RS occupies two REs, 2f(1) and 2f(1)+1, where f(1) represents the index of the bit with a value of 1 in the above bitmap. The frequency domain position of SL CSI-RS is also determined by the transmitting terminal, but the determined frequency domain position of SL CSI-RS cannot conflict with PT-RS.

图6是本申请实施例提供的一种SL CSI-RS时频位置示意图，如图6所示，SL CSI-RS端口数为2，sl-CSI-RS-FirstSymbol为8，sl-CSI-RS-FreqAllocation为[b₅,b₄,b₃,b₂,b₁,b₀]＝[0,0,0,1,0,0]。Figure 6 is a schematic diagram of SL CSI-RS time-frequency position provided by an embodiment of the present application. As shown in Figure 6, the number of SL CSI-RS ports is 2, sl-CSI-RS-FirstSymbol is 8, and sl-CSI-RS-FreqAllocation is [ _b5 , _b4 , _b3 , _b2 , _b1 , _b0 ] = [0,0,0,1,0,0].

模拟波束赋形Analog Beamforming

NR/5G系统的设计目标包括高频段(例如6GHz以上的频段)的大带宽通信。当工作频率变高时，传输过程中的路径损耗会增大，从而影响高频系统的覆盖能力。为了能够有效地保证高频段NR系统的覆盖，一种有效的技术方案便是基于大规模天线阵列(Massive MIMO)，以形成增益更大的赋形波束，克服传播损耗，确保系统覆盖。The design goals of the NR/5G system include high-bandwidth communications in high-frequency bands (e.g., bands above 6 GHz). When the operating frequency becomes higher, the path loss during transmission will increase, thus affecting the coverage capability of the high-frequency system. In order to effectively ensure the coverage of the high-frequency band NR system, an effective technical solution is based on massive antenna arrays (Massive MIMO) to form a shaped beam with greater gain, overcome propagation loss, and ensure system coverage.

毫米波天线阵列，由于波长更短，天线阵子间距以及孔径更小，可以让更多的物理天线阵子集成在一个有限大小的二维天线阵列中，同时，由于毫米波天线阵列的尺寸有限，从硬件复杂度、成本开销以及功耗等因素考虑，无法采用数字波束赋形方式，而是通常采用模拟波束赋形方式，在增强网络覆盖同时，也可以降低设备的实现复杂度。Millimeter-wave antenna arrays, due to their shorter wavelengths, smaller antenna array spacing and apertures, can allow more physical antenna arrays to be integrated into a two-dimensional antenna array of limited size. At the same time, due to the limited size of the millimeter-wave antenna array, digital beamforming cannot be used due to factors such as hardware complexity, cost overhead, and power consumption. Instead, analog beamforming is usually used, which can reduce the complexity of device implementation while enhancing network coverage.

现有的2/3/4G典型系统中，一个小区(扇区)使用一个较宽的beam(波束)来覆盖整个小区。因此在每个时刻，小区覆盖范围内UE都有机会获得系统分配的传输资源。In the existing 2/3/4G typical system, a cell (sector) uses a wider beam to cover the entire cell. Therefore, at every moment, UEs within the cell coverage area have the opportunity to obtain transmission resources allocated by the system.

NR/5G的Multi-beam系统通过不同的beam来覆盖整个小区，即每个beam覆盖一个较小的范围，通过时间上的sweeping来实现多个beam覆盖整个小区的效果。The NR/5G Multi-beam system uses different beams to cover the entire cell. That is, each beam covers a smaller area, and time sweeping is used to achieve the effect of multiple beams covering the entire cell.

下面给出了不使用波束赋形和使用波束赋形系统的示意图。图7为是传统的、不使用波束赋形的LTE和NR系统，图8为是使用波束赋形的NR系统。The following are schematic diagrams of systems without and with beamforming. Figure 7 shows a conventional LTE and NR system without beamforming, and Figure 8 shows a NR system with beamforming.

图7是本申请实施例提供的不使用模拟波束的系统示意图，如图7所示，LTE/NR网络侧使用一个宽的波束来覆盖整个小区，用户1-5在任何时刻都可以接收到网络信号。Figure 7 is a schematic diagram of a system provided in an embodiment of the present application without using an analog beam. As shown in Figure 7, the LTE/NR network side uses a wide beam to cover the entire cell, and users 1-5 can receive network signals at any time.

与此相反，图8是本申请实施例提供的使用模拟波束的系统示意图，如图8所示，网络侧使用较窄的波束(例如图中的波束1-4)，在不同的时刻使用不同波束来覆盖小区中的不同区域，例如在时刻1，NR网络侧通过波束1覆盖用户1所在的区域；在时刻2，NR网络侧通过波束2覆盖用户2所在的区域；在时刻3，NR网络侧通过波束3覆盖用户3和用户4所在的区域；在时刻4，NR网络侧通过波束4覆盖用户5所在的区域。In contrast, FIG8 is a schematic diagram of a system using analog beams provided in an embodiment of the present application. As shown in FIG8, the network side uses narrower beams (e.g., beams 1-4 in the figure), and uses different beams at different times to cover different areas in the cell. For example, at time 1, the NR network side covers the area where user 1 is located through beam 1; at time 2, the NR network side covers the area where user 2 is located through beam 2; at time 3, the NR network side covers the area where user 3 and user 4 are located through beam 3; at time 4, the NR network side covers the area where user 3 and user 4 are located through beam 3. The network side covers the area where user 5 is located through beam 4.

右图中，由于网络使用较窄的波束，发射能量可以更集中，因此可以覆盖更远的距离；同时由于波束较窄，每个波束只能覆盖小区中的部分区域，因此模拟波束赋形是“以时间换空间”。模拟波束赋形不仅可以用于网络侧设备，也同样可以用于终端。同时，模拟波束赋形不仅可以用于信号的发送(称为发送波束)，同样也可以用于信号的接收(称为接收波束)。In the right figure, because the network uses narrower beams, the transmission energy can be more concentrated, so it can cover a longer distance; at the same time, because the beams are narrow, each beam can only cover part of the area in the cell, so analog beamforming is "trading time for space". Analog beamforming can be used not only for network-side devices, but also for terminals. At the same time, analog beamforming can be used not only for sending signals (called transmit beams), but also for receiving signals (called receive beams).

为了提升侧行系统的传输速率，侧行通信中也可以考虑使用毫米波频段。在侧行毫米波传输系统中，终端之间采用模拟波束的方式进行数据传输。由于存在不同的波束方向，终端工作在毫米波频段时，需要通过波束管理机制选取合适的发送波束和接收波束。在波束管理中，终端并不会直接指示传输数据所使用的发送波束或接收波束，而是通过指示与波束相关联的参考信号间接地指示相应的波束，参考信号可以是SL CSI-RS，每一个SL CSI-RS可以有对应的索引信息，不同的SL CSI-RS可以对应不同的波束方向。在进行发送波束选择时，终端可以使用不同的波束轮询发送不同的SL CSI-RS资源，接收终端分别接收该多个SL CSI-RS，并进行测量，根据测量结果可以选择一个或多个SL CSI-RS资源，并将所选择的SL CSI-RS资源索引信息上报给发送终端，发送终端可以从上报的一个或多个SL CSI-RS资源中选择较优的SL CSI-RS，并将其对应的发送波束选择为最优发送波束。在进行接收波束选择时，发送终端可以使用所选择的最优发送波束多次发送相关联的SL CSI-RS，接收终端采用不同的接收波束进行轮询接收并测量，根据测量结果接收终端选择较优接收波束作为与该发送波束相对应的接收波束。In order to improve the transmission rate of the sidewalk system, the use of millimeter wave frequency bands can also be considered in sidewalk communications. In the sidewalk millimeter wave transmission system, data is transmitted between terminals using analog beams. Due to the existence of different beam directions, when the terminal operates in the millimeter wave frequency band, it is necessary to select appropriate transmit beams and receive beams through the beam management mechanism. In beam management, the terminal does not directly indicate the transmit beam or receive beam used to transmit data, but indirectly indicates the corresponding beam by indicating the reference signal associated with the beam. The reference signal can be SL CSI-RS, and each SL CSI-RS can have corresponding index information. Different SL CSI-RS can correspond to different beam directions. When selecting a transmit beam, the terminal can use different beams to poll and send different SL CSI-RS resources. The receiving terminal receives the multiple SL CSI-RSs respectively and performs measurements. One or more SL CSI-RS resources can be selected based on the measurement results, and the selected SL CSI-RS resource index information is reported to the transmitting terminal. The transmitting terminal can select a better SL CSI-RS from the reported one or more SL CSI-RS resources, and select its corresponding transmit beam as the optimal transmit beam. When selecting a receive beam, the transmitting terminal can use the selected optimal transmit beam to send the associated SL CSI-RS multiple times. The receiving terminal uses different receive beams for polling, reception and measurement. The receiving terminal selects a better receive beam as the receive beam corresponding to the transmit beam based on the measurement results.

SL CSI-RS增强方式SL CSI-RS enhancement method

常见的SL CSI-RS以非周期的方式发送，并且必须与数据在同一时隙发送，如果终端通过测量现有的SL CSI-RS进行波束管理，大大增加了波束管理的时延，严重影响了波束管理的效率。因此，在3GPP RAN1的会议讨论中，考虑通过以下两种方式对SL CSI-RS进行增强。Common SL CSI-RS is sent in a non-periodic manner and must be sent in the same time slot as data. If the terminal performs beam management by measuring the existing SL CSI-RS, the delay of beam management will be greatly increased, which will seriously affect the efficiency of beam management. Therefore, in the meeting discussion of 3GPP RAN1, the following two methods are considered to enhance SL CSI-RS.

图9是本申请实施例提供的SL CSI-RS增强方式一，如图9所示，方式1为一种standalone SL CSI-RS，上述standalone表示的是终端在传输SL CSI-RS的时隙内不能传输数据业务，即该时隙不能用于传输SL MAC SDU。该时隙中可能包含第一阶SCI，第二阶SCI和SL MAC CE。SL CSI-RS资源时域上包括两个OFDM符号，第一个符号用于AGC，第二个符号用于传输SL CSI-RS。另外，在一个时隙内可能包含多个SL CSI-RS资源，如图9中CSI-RS#0，CSI-RS#1，…，由于传输不同的SL CSI-RS时可以使用不同发送波束，所以，该多个SL CSI-RS资源是TDM方式。FIG9 is a first SL CSI-RS enhancement method provided by an embodiment of the present application. As shown in FIG9 , method 1 is a standalone SL CSI-RS. The above standalone means that the terminal cannot transmit data services in the time slot for transmitting the SL CSI-RS, that is, the time slot cannot be used to transmit the SL MAC SDU. The time slot may contain a first-order SCI, a second-order SCI and a SL MAC CE. The SL CSI-RS resource includes two OFDM symbols in the time domain, the first symbol is used for AGC, and the second symbol is used to transmit the SL CSI-RS. In addition, a time slot may contain multiple SL CSI-RS resources, such as CSI-RS#0, CSI-RS#1, ... in FIG9 . Since different transmission beams can be used when transmitting different SL CSI-RS, the multiple SL CSI-RS resources are TDM methods.

图10是本申请实施例提供的SL CSI-RS增强方式二，如图10所示，方式2为一种non-standalone SL CSI-RS，SL CSI-RS和数据业务可以在同一个时隙内传输。与现有SL CSI-RS不同的是，方式2中的SL CSI-RS与数据业务是TDM的复用方式，即用不的OFDM符号传输，因为终端在发送信号时只能选择一个波束方向，如果SL CSI-RS和数据位于同一个的OFDM符号，终端无法为数据和SL CSI-RS选择不同的发送波束。FIG10 is a second SL CSI-RS enhancement method provided by an embodiment of the present application. As shown in FIG10 , method 2 is a non-standalone SL CSI-RS, and SL CSI-RS and data services can be transmitted in the same time slot. Different from the existing SL CSI-RS, the SL CSI-RS and data services in method 2 are TDM multiplexed, that is, they are transmitted using different OFDM symbols, because the terminal can only select one beam direction when sending a signal. If the SL CSI-RS and data are located in the same OFDM symbol, the terminal cannot select different transmission beams for the data and the SL CSI-RS.

在SL FR2中对SL CSI-RS进行增强并引入不同的SL CSI-RS资源结构后，同时会引入以下新的问题需要解决：After enhancing SL CSI-RS in SL FR2 and introducing different SL CSI-RS resource structures, the following new problems will be introduced and need to be solved:

1)SL终端工作在第二模式下，当终端需要发送SL CSI-RS时，需要为SL CSI-RS选择传输资源，沿用现有Mode 2(第二模式)资源选择机制是对标准影响较小方式，但是，在Mode 2资源选择机制中，终端需要根据高层指示的优先级数值进行资源排除从而完成资源选择，而目前3GPP RAN1讨论中还没有涉及SL CSI-RS相对应的优先级数值，需要就此问题进行增强；1) When the SL terminal works in the second mode, when the terminal needs to send SL CSI-RS, it needs to select transmission resources for SL CSI-RS. Using the existing Mode 2 resource selection mechanism is a method with less impact on the standard. However, in the Mode 2 resource selection mechanism, the terminal needs to exclude resources according to the priority value indicated by the high-level layer to complete resource selection. At present, the 3GPP RAN1 discussion has not yet involved the priority value corresponding to SL CSI-RS, and this issue needs to be enhanced;

2)在接收终端进行SL CSI-RS测量后，需要将测量结果信息上报给发送终端，根据目前RAN1的讨论，上述上报信息可以考虑承载于PSFCH，因此，对于上述与SL CSI-RS相关联的PSFCH也需要确定相关优先级数值；2) After the receiving terminal performs SL CSI-RS measurement, the measurement result information needs to be reported to the transmitting terminal. According to the current discussion of RAN1, the above-mentioned reporting information can be considered to be carried on PSFCH. Therefore, for the above-mentioned PSFCH associated with SL CSI-RS, it is also necessary to determine the relevant priority value;

3)在SL系统中，对于PSFCH，由于终端发送/接收PSFCH能力受限以及半双工限制，现有机制中，终端需要根据待发送/接收的PSFCH的优先级数值确定PSFCH收/发状态以及PSFCH收/发数量，所以，当引入上述承载上报信息的PSFCH后，终端收/发PSFCH的相关规则也需要进行增强。3) In the SL system, for PSFCH, due to the limited ability of the terminal to send/receive PSFCH and the half-duplex limitation, in the existing mechanism, the terminal needs to determine the PSFCH receive/send status and the number of PSFCHs received/sent based on the priority value of the PSFCH to be sent/received. Therefore, after the introduction of the above-mentioned PSFCH carrying reporting information, the relevant rules for the terminal to receive/send PSFCH also need to be enhanced.

由此可见，常见技术中缺少对SL CSI-RS相对应的优先级数值进行确定的方法，相应的也缺少确定与SL CSI-RS相关联的PSFCH相对应的优先级数值的相关方案，从而无法保证波束管理机制的有效性，进而降低了通信可靠性。It can be seen that common technologies lack a method for determining the priority value corresponding to the SL CSI-RS, and correspondingly lack a related scheme for determining the priority value corresponding to the PSFCH associated with the SL CSI-RS, thereby failing to ensure the effectiveness of the beam management mechanism, thereby reducing communication reliability.

为了解决上述问题，在本申请的实施例中，第一终端接收第二终端发送的波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第一终端基于第一PSFCH对应的第一优先级信息接收第一PSFCH承载的波束上报信息。相应地，第二终端基于第一PSFCH对应的第一优先级信息向第一终端发送第一PSFCH承载的波束上报信息。也就是说，在本申请的实施例中，针对承载 SL CSI-RS对应的波束上报信息的PSFCH，可以引入该PSFCH对应的优先级信息，从而可以利用PSFCH的优先级信息进行波束上报信息的接收或发送。由此可见，本申请实施例通过确定与SL CSI-RS相关联的PSFCH的优先级信息来进一步对PSFCH发送/接收机制进行了相应的优化，完善了终端发送和接收PSFCH的相关机制，从而保证了波束管理机制的有效性，进而提升了通信可靠性。In order to solve the above problem, in an embodiment of the present application, the first terminal receives the beam reporting information sent by the second terminal; wherein the beam reporting information includes the beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH. Correspondingly, the second terminal sends the beam reporting information carried by the first PSFCH to the first terminal based on the first priority information corresponding to the first PSFCH. That is to say, in an embodiment of the present application, for the beam reporting information carried The PSFCH of the beam reporting information corresponding to the SL CSI-RS can introduce the priority information corresponding to the PSFCH, so that the priority information of the PSFCH can be used to receive or send the beam reporting information. It can be seen that the embodiment of the present application further optimizes the PSFCH sending/receiving mechanism by determining the priority information of the PSFCH associated with the SL CSI-RS, improves the relevant mechanism of the terminal sending and receiving PSFCH, thereby ensuring the effectiveness of the beam management mechanism and improving the communication reliability.

应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。还应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。还应理解，在本申请的实施例中提到的“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。还应理解，在本申请的实施例中提到的“预定义”或“预定义规则”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。还应理解，本申请实施例中，所述“协议”可以指通信领域的标准协议。It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and/or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the objects associated with each other are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B. It should also be understood that the "correspondence" mentioned in the embodiments of the present application can mean that there is a direct or indirect correspondence relationship between the two, or it can mean that there is an association relationship between the two, or it can mean that there is an indication and being indicated, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit its specific implementation method. For example, predefined can refer to the definition in the protocol. It should also be understood that in the embodiments of the present application, the "protocol" can refer to a standard protocol in the field of communications.

为便于理解本申请实施例的技术方案，以下通过具体实施例详述本申请的技术方案。以上相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

本申请的一实施例提出了一种侧行链路的通信方法，该方法可以应用于第一终端。其中，第一终端可以为侧行终端。An embodiment of the present application provides a sidelink communication method, which can be applied to a first terminal, wherein the first terminal can be a sidelink terminal.

需要说明的是，在本申请的实施例中，第一终端可以为侧行系统中的终端，本申请不进行具体限定。例如，第一终端可以为侧行毫米波传输系统中的侧行终端。It should be noted that, in the embodiments of the present application, the first terminal may be a terminal in a sidewalk system, which is not specifically limited in the present application. For example, the first terminal may be a sidewalk terminal in a sidewalk millimeter wave transmission system.

进一步地，在本申请的实施例中，图11是是本申请实施例提供的侧行链路的通信方法的实现流程示意图一，如图11所示，侧行链路的通信方法可以包括以下步骤：Further, in an embodiment of the present application, FIG. 11 is a schematic diagram of a flow chart of a side link communication method provided in an embodiment of the present application. As shown in FIG. 11 , the side link communication method may include the following steps:

步骤101、第一终端接收第二终端发送的波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第一终端基于第一PSFCH对应的第一优先级信息接收第一PSFCH承载的波束上报信息。Step 101: The first terminal receives beam reporting information sent by the second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

在本申请的实施例中，第一终端可以接收第二终端发送的波束上报(beam reporting)信息。其中，第一终端可以基于第一PSFCH对应的第一优先级信息接收第二终端发送的、第一PSFCH承载的波束上报信息。In an embodiment of the present application, the first terminal may receive beam reporting information sent by the second terminal. The first terminal may receive beam reporting information carried by the first PSFCH and sent by the second terminal based on the first priority information corresponding to the first PSFCH.

需要说明的是，在本申请的实施例中，第一优先级信息可以用于对第一PSFCH的优先级进行确定。其中，本申请对第一优先级信息的形式不进行具体限定，例如，第一优先级信息可以为第一PSFCH的优先级数值，也可以为指示第一PSFCH的优先级数值的参数。It should be noted that, in an embodiment of the present application, the first priority information can be used to determine the priority of the first PSFCH. The present application does not specifically limit the form of the first priority information. For example, the first priority information can be the priority value of the first PSFCH or a parameter indicating the priority value of the first PSFCH.

也就是说，在本申请的实施例中，可以为第一PSFCH引入对应的第一优先级信息，例如，第一PSFCH的优先级数值，从而可以在后续的PSFCH的收发过程中，可以基于第一PSFCH的第一优先级信息进行收发状态以及PSFCH收发数量的确定，从而能够保证波束管理机制的有效性。That is to say, in an embodiment of the present application, corresponding first priority information can be introduced for the first PSFCH, for example, the priority value of the first PSFCH, so that in the subsequent PSFCH reception and transmission process, the reception and transmission status and the number of PSFCH reception and transmission can be determined based on the first priority information of the first PSFCH, thereby ensuring the effectiveness of the beam management mechanism.

需要说明的是，在本申请的实施例中，优先级信息越大，即优先级信息指示的优先级数值越大，指示该优先级越低，优先级信息越小，即优先级信息指示的优先级数值越小，指示该优先级越高。也就是说，优先级的取值越大，该优先级越低，优先级的取值越小，该优先级越高。It should be noted that, in the embodiment of the present application, the larger the priority information, that is, the larger the priority value indicated by the priority information, the lower the priority is, and the smaller the priority information, that is, the smaller the priority value indicated by the priority information, the higher the priority is. In other words, the larger the priority value, the lower the priority is, and the smaller the priority value, the higher the priority is.

示例性的，在一些实施例中，第一优先级信息可以为大于等于1且小于等于8的整数。其中，当第一优先级信息为1时，对应的第一PSFCH的优先级最高，当第一优先级信息为8时，对应的第一PSFCH的优先级最低。Exemplarily, in some embodiments, the first priority information may be an integer greater than or equal to 1 and less than or equal to 8. When the first priority information is 1, the corresponding first PSFCH has the highest priority, and when the first priority information is 8, the corresponding first PSFCH has the lowest priority.

也就是说，在本申请的实施例中，当第一优先级信息为第一PSFCH的优先级数值时，第一优先级信息可以在1-8的取值范围内，这是因为SL数据业务的优先级信息包括1-8共八个优先级，第一优先级信息也应该在此范围内。That is to say, in an embodiment of the present application, when the first priority information is the priority value of the first PSFCH, the first priority information can be in the value range of 1-8. This is because the priority information of the SL data service includes eight priorities from 1 to 8, and the first priority information should also be within this range.

可以理解的是，在本申请的实施例中，波束上报信息可以包括SL CSI-RS对应的波束上报信息。其中，第一终端向第二终端发送SL CSI-RS，第二终端在测量完进行上报时，可以采用任意的上报方式。例如，可以直接上报波束上报信息；也可以预设一个门限值，当测量结果大于这个门限值时，上报1bit的指示信息；还可以在每一次测量结果大于之前所有测量结果时上报1bit的指示信息。It is understandable that in an embodiment of the present application, the beam reporting information may include beam reporting information corresponding to the SL CSI-RS. Among them, the first terminal sends the SL CSI-RS to the second terminal, and the second terminal can use any reporting method when reporting after measurement. For example, the beam reporting information can be reported directly; a threshold value can also be preset, and when the measurement result is greater than the threshold value, 1 bit of indication information is reported; and 1 bit of indication information can also be reported each time the measurement result is greater than all previous measurement results.

也就是说，在本申请的实施例中，第一PSFCH承载的信息可能是各种内容的信息，例如，可以承载SL CSI-RS对应的波束上报信息，本申请不进行具体限定。That is to say, in the embodiment of the present application, the information carried by the first PSFCH may be information of various contents, for example, The beam reporting information corresponding to the SL CSI-RS is not specifically limited in this application.

需要说明的是，在本申请的实施例中，第二终端与第一终端可以为不同的侧行终端，本申请不进行具体限定。例如，第二终端可以为侧行毫米波传输系统中的侧行终端。It should be noted that, in the embodiment of the present application, the second terminal and the first terminal may be different sidewalk terminals, which is not specifically limited in the present application. For example, the second terminal may be a sidewalk terminal in a sidewalk millimeter wave transmission system.

进一步地，在本申请的实施例中，第一优先级信息可以基于以下一种或多种信息确定：SL CSI-RS的第二优先级信息，优先级参考值，第一预设数值。Furthermore, in an embodiment of the present application, the first priority information can be determined based on one or more of the following information: the second priority information of SL CSI-RS, a priority reference value, and a first preset value.

需要说明的是，在本申请的实施例中，第一PSFCH对应的第一优先级信息，可以通过多种方式进行确定。其中，第一优先级信息可以基于SL CSI-RS的第二优先级信息确定，也可以基于SCI所指示的优先级参考值确定，也可以基于第一预设数值确定，还可以基于第二优先级信息、优先级参考值以及第一预设数值中的多种信息进行确定，本申请不进行具体限定。It should be noted that, in the embodiment of the present application, the first priority information corresponding to the first PSFCH can be determined in a variety of ways. Among them, the first priority information can be determined based on the second priority information of the SL CSI-RS, can also be determined based on the priority reference value indicated by the SCI, can also be determined based on the first preset value, can also be determined based on the second priority information, the priority reference value and the first preset value of the multiple information, the present application does not specifically limit.

进一步地，在本申请的实施例中，第一终端可以先向第二终端发送第一信息；其中，第一信息可以用于指示SL CSI-RS的第二优先级信息。Furthermore, in an embodiment of the present application, the first terminal may first send first information to the second terminal; wherein the first information may be used to indicate the second priority information of the SL CSI-RS.

需要说明的是，在本申请的实施例中，第二优先级信息可以用于对SL CSI-RS的优先级进行确定。其中，本申请对第二优先级信息的形式不进行具体限定，例如，第二优先级信息可以为SL CSI-RS的优先级数值，也可以为指示SL CSI-RS的优先级数值的参数。It should be noted that, in the embodiments of the present application, the second priority information can be used to determine the priority of the SL CSI-RS. The present application does not specifically limit the form of the second priority information. For example, the second priority information can be the priority value of the SL CSI-RS or a parameter indicating the priority value of the SL CSI-RS.

也就是说，在本申请的实施例中，可以为SL CSI-RS引入对应的第二优先级信息，例如，SL CSI-RS的优先级数值，从而可以进一步确定与SL CSI-RS相关联的第一PSFCH相对应的第一优先级信息，进而可以在后续的PSFCH的收发过程中，可以基于第一PSFCH的第一优先级信息进行收发状态以及PSFCH收发数量的确定，从而能够保证波束管理机制的有效性。That is to say, in an embodiment of the present application, corresponding second priority information can be introduced for the SL CSI-RS, for example, the priority value of the SL CSI-RS, so that the first priority information corresponding to the first PSFCH associated with the SL CSI-RS can be further determined, and then in the subsequent PSFCH reception and transmission process, the reception and transmission status and the number of PSFCH reception and transmission can be determined based on the first priority information of the first PSFCH, thereby ensuring the effectiveness of the beam management mechanism.

示例性的，在一些实施例中，第二优先级信息可以为大于等于1且小于等于8的整数。其中，当第二优先级信息为1时，对应的SL CSI-RS的优先级最高，当第二优先级信息为8时，对应的SL CSI-RS的优先级最低。Exemplarily, in some embodiments, the second priority information may be an integer greater than or equal to 1 and less than or equal to 8. When the second priority information is 1, the corresponding SL CSI-RS has the highest priority, and when the second priority information is 8, the corresponding SL CSI-RS has the lowest priority.

也就是说，在本申请的实施例中，当第二优先级信息为SL CSI-RS的优先级数值时，第二优先级信息可以在1-8的取值范围内，这是因为SL数据业务的优先级信息包括1-8共八个优先级，为了保证在侧行数据传输和SL CSI-RS传输在相同资源池中的兼容性和可比较性，SL CSI-RS的优先级信息也应该在此范围内。That is to say, in an embodiment of the present application, when the second priority information is the priority value of SL CSI-RS, the second priority information can be in the value range of 1-8. This is because the priority information of the SL data service includes eight priorities from 1 to 8. In order to ensure the compatibility and comparability of sidelink data transmission and SL CSI-RS transmission in the same resource pool, the priority information of SL CSI-RS should also be within this range.

需要说明的是，在本申请的实施例中，第一终端可以向第二终端发送第一信息；其中，第一信息承载于与SL CSI-RS关联的第一信令，第一信令可以包括SCI。It should be noted that, in an embodiment of the present application, the first terminal may send first information to the second terminal; wherein the first information is carried in a first signaling associated with the SL CSI-RS, and the first signaling may include SCI.

示例性的，在一些实施例中，承载第一信息的第一信令可以包括第一阶SCI。其中，该第一阶SCI可以用于指示PSSCH的传输资源、预留资源信息、调制编码策略MCS等级、优先级信息(如第二优先级信息)等信息。Exemplarily, in some embodiments, the first signaling carrying the first information may include a first-order SCI, wherein the first-order SCI may be used to indicate information such as transmission resources, reserved resource information, modulation and coding strategy MCS level, priority information (such as second priority information) of the PSSCH.

可以理解的是，在本申请的实施例中，第一信令承载于第一物理侧行通道，第一物理侧行通道可以包括PSCCH。It can be understood that, in the embodiment of the present application, the first signaling is carried on the first physical sidewalk channel, and the first physical sidewalk channel may include the PSCCH.

也就是说，在本申请的实施例中，第一终端可以向第二终端发送第一信息，该第一信息承载于第一阶SCI，该第一阶SCI承载于PSCCH。That is to say, in an embodiment of the present application, the first terminal may send first information to the second terminal, where the first information is carried on a first-order SCI, and the first-order SCI is carried on a PSCCH.

进一步地，在本申请的实施例中，一个或多个SL CSI-RS和第一信令在同一时隙上传输。Furthermore, in an embodiment of the present application, one or more SL CSI-RS and the first signaling are transmitted in the same time slot.

需要说明的是，在本申请的实施例中，第一终端可以向第二终端发送一个或多个SL CSI-RS，该一个或多个SL CSI-RS与承载第一信息的SCI可以在同一时隙上传输。It should be noted that, in an embodiment of the present application, the first terminal can send one or more SL CSI-RS to the second terminal, and the one or more SL CSI-RS and the SCI carrying the first information can be transmitted in the same time slot.

示例性的，在一些实施例中，在侧行毫米波传输系统中，由于存在不同的波束方向，需要通过指示与波束相关联的参考信号间接地指示相应的波束，参考信号可以是SL CSI-RS，每一个SL CSI-RS可以有对应的索引信息，不同的SL CSI-RS可以对应不同的波束方向。例如，在进行发送波束选择时，第一终端可以使用不同的波束轮询发送不同的SL CSI-RS资源，第二终端分别接收该多个SL CSI-RS，并进行测量，根据测量结果可以选择一个或多个SL CSI-RS资源，并将所选择的SL CSI-RS资源索引信息上报给发送终端(如第一终端)，第一终端可以从上报的一个或多个SL CSI-RS资源中选择较优的SL CSI-RS，并将其对应的发送波束选择为最优发送波束。相应地，在进行接收波束选择时，第二终端可以使用所选择的最优发送波束多次发送相关联的SL CSI-RS，第一终端采用不同的接收波束进行轮询接收并测量，根据测量结果第二终端选择较优接收波束作为与该发送波束相对应的接收波束。Exemplarily, in some embodiments, in a side-travel millimeter wave transmission system, due to the existence of different beam directions, it is necessary to indirectly indicate the corresponding beam by indicating a reference signal associated with the beam, and the reference signal may be an SL CSI-RS, and each SL CSI-RS may have corresponding index information, and different SL CSI-RS may correspond to different beam directions. For example, when performing a transmit beam selection, the first terminal may use different beam polling to send different SL CSI-RS resources, and the second terminal may receive the multiple SL CSI-RSs respectively and perform measurements, and one or more SL CSI-RS resources may be selected based on the measurement results, and the selected SL CSI-RS resource index information may be reported to the transmitting terminal (such as the first terminal), and the first terminal may select a better SL CSI-RS from the reported one or more SL CSI-RS resources, and select its corresponding transmit beam as the optimal transmit beam. Accordingly, when selecting a receiving beam, the second terminal can use the selected optimal transmitting beam to send the associated SL CSI-RS multiple times, and the first terminal uses different receiving beams to perform polling reception and measurement. According to the measurement results, the second terminal selects a better receiving beam as the receiving beam corresponding to the transmitting beam.

进一步地，在本申请的实施例中，第二优先级信息可以基于以下一种或多种信息确定：应用类型与优先级信息的预设映射关系，已分配的传输资源关联的优先级信息，待传输数据的优先级信息，第二预设数值。Furthermore, in an embodiment of the present application, the second priority information can be determined based on one or more of the following information: a preset mapping relationship between application type and priority information, priority information associated with allocated transmission resources, priority information of data to be transmitted, and a second preset numerical value.

需要说明的是，在本申请的实施例中，SL CSI-RS对应的第二优先级信息，可以通过多种方式进行确定。其中，第二优先级信息可以基于应用类型与优先级信息的预设映射关系确定，也可以基于已分配的传输资源关联的优先级信息确定，也可以基于待传输数据的优先级信息确定，也可以基于第二预设数值确定，还可以基于应用类型与优先级信息的预设映射关系，已分配的传输资源关联的优先级信息，待传输数据的优先级信息，第二预设数值中的多种信息进行确定，本申请不进行具体限定。It should be noted that, in the embodiment of the present application, the second priority information corresponding to the SL CSI-RS can be obtained in a variety of ways. The second priority information can be determined based on a preset mapping relationship between the application type and the priority information, or based on the priority information associated with the allocated transmission resources, or based on the priority information of the data to be transmitted, or based on a second preset value, or based on a preset mapping relationship between the application type and the priority information, the priority information associated with the allocated transmission resources, the priority information of the data to be transmitted, or a second preset value, and this application does not make specific limitations.

进一步地，在本申请的实施例中，应用类型与优先级信息的预设映射关系用于确定波束应用类型与优先级信息之间的对应关系。其中，波束应用类型与优先级信息之间的对应关系，可以为一个波束应用类型对应一个优先级信息，也可以为一个波束应用类型对应多个优先级信息，即波束应用类型与优先级信息之间可以是一一对应的映射关系，也可以一对多的映射关系，本申请不进行具体限定。Further, in an embodiment of the present application, a preset mapping relationship between an application type and priority information is used to determine a corresponding relationship between a beam application type and priority information. The corresponding relationship between a beam application type and priority information may be one beam application type corresponding to one priority information, or one beam application type corresponding to multiple priority information, that is, a one-to-one mapping relationship or a one-to-many mapping relationship between beam application types and priority information, which is not specifically limited in the present application.

也就是说，在本申请的实例中，发送SL CSI-RS的目的与SL CSI-RS的优先级信息之间关系为一对一的映射关系或一对多的映射关系，不同目的所映射的优先级信息可以是相同的、不同的或者部分相同的。That is to say, in the example of the present application, the relationship between the purpose of sending SL CSI-RS and the priority information of SL CSI-RS is a one-to-one mapping relationship or a one-to-many mapping relationship, and the priority information mapped for different purposes can be the same, different, or partially the same.

需要说明的是，在本申请的实施例中，波束应用类型包括以下一种或多种类型：初始波束配对，波束维护，波束失效恢复和候选发送波束选择。It should be noted that, in the embodiments of the present application, the beam application type includes one or more of the following types: initial beam pairing, beam maintenance, beam failure recovery and candidate transmission beam selection.

需要说明的是，在本申请的实施例中，波束应用类型可以用于表征发送SL CSI-RS的目的，即发送SL CSI-RS的目的可以包括初始波束配对，波束维护，波束失效恢复和候选发送波束选择。It should be noted that, in the embodiments of the present application, the beam application type can be used to characterize the purpose of sending the SL CSI-RS, that is, the purpose of sending the SL CSI-RS can include initial beam pairing, beam maintenance, beam failure recovery and candidate transmission beam selection.

可以理解的是，在本申请的实施例中，波束维护可以包括发送波束选择和接收波束选择。也就是说，波束应用类型包括但不限于以下一种或多种类型：初始波束配对，发送波束选择，接收波束选择，波束失效恢复和候选发送波束选择。It is understood that in the embodiments of the present application, beam maintenance may include transmit beam selection and receive beam selection. That is, beam application types include but are not limited to one or more of the following types: initial beam pairing, transmit beam selection, receive beam selection, beam failure recovery, and candidate transmit beam selection.

进一步地，在本申请的实施例中，如果第二优先级信息是基于应用类型与优先级信息的预设映射关系确定的，即对于根据发送SL CSI-RS的目的确定SL CSI-RS的第二优先级信息的情况，第二优先级信息为根据应用类型与优先级信息的预设映射关系确定的、与SL CSI-RS的波束应用类型对应的优先级信息。Further, in an embodiment of the present application, if the second priority information is determined based on a preset mapping relationship between the application type and the priority information, that is, for the case where the second priority information of the SL CSI-RS is determined according to the purpose of sending the SL CSI-RS, the second priority information is the priority information corresponding to the beam application type of the SL CSI-RS, which is determined according to the preset mapping relationship between the application type and the priority information.

需要说明的是，在本申请的实施例中，如果SL CSI-RS对应的波束应用类型对应有多个优先级信息，最终确定的第二优先级信息可以为多个优先级信息中的一个。其中，第二优先级信息的选择原则可以是随机选择，或者取决于终端实现。It should be noted that, in an embodiment of the present application, if the beam application type corresponding to the SL CSI-RS corresponds to multiple priority information, the second priority information finally determined may be one of the multiple priority information. Among them, the selection principle of the second priority information may be random selection, or depend on the terminal implementation.

示例性的，在一些实施例中，假设应用类型与优先级信息的预设映射关系用于确定波束应用类型对应的一个优先级信息，即波束应用类型与优先级信息之间是一一对应的映射关系，那么，可以确定发送SL CSI-RS的目的和SL CSI-RS优先级信息为一对一的映射关系。应用类型与优先级信息的预设映射关系可以如表1所示：Exemplarily, in some embodiments, assuming that the preset mapping relationship between the application type and the priority information is used to determine a priority information corresponding to the beam application type, that is, there is a one-to-one mapping relationship between the beam application type and the priority information, then it can be determined that the purpose of sending the SL CSI-RS and the SL CSI-RS priority information are a one-to-one mapping relationship. The preset mapping relationship between the application type and the priority information can be shown in Table 1:

表1
Table 1

基于表1，假设SL CSI-RS对应的波束应用类型为初始波束配对，那么对应的第二优先级信息可以为1，优先级最高，即如果发送SL CSI-RS的目的为初始波束配对，那么该SL CSI-RS的优先级最高。Based on Table 1, assuming that the beam application type corresponding to the SL CSI-RS is initial beam pairing, the corresponding second priority information can be 1, which means the highest priority. That is, if the purpose of sending the SL CSI-RS is initial beam pairing, the SL CSI-RS has the highest priority.

示例性的，在一些实施例中，假设应用类型与优先级信息的预设映射关系用于确定波束应用类型对应的多个优先级信息，即波束应用类型与优先级信息之间是一对多的映射关系，那么，可以确定发送SL CSI-RS的目的和SL CSI-RS优先级信息为一对多的映射关系。应用类型与优先级信息的预设映射关系可以如表2所示：Exemplarily, in some embodiments, assuming that the preset mapping relationship between the application type and the priority information is used to determine the multiple priority information corresponding to the beam application type, that is, the beam application type and the priority information are in a one-to-many mapping relationship, then, it can be determined that the purpose of sending the SL CSI-RS and the SL CSI-RS priority information are in a one-to-many mapping relationship. The preset mapping relationship between the application type and the priority information can be shown in Table 2:

表2
Table 2

基于表2，假设SL CSI-RS对应的波束应用类型为初始波束配对，那么对应的第二优先级信息可以为1，也可以为2，即如果发送SL CSI-RS的目的为初始波束配对，那么该SL CSI-RS的第二优先级信息可以在1或2中进行选择。其中，在多个优先级中的选择方式为均匀随机选择，或者取决于终端实现。Based on Table 2, assuming that the beam application type corresponding to the SL CSI-RS is initial beam pairing, the corresponding second priority information can be 1 or 2, that is, if the purpose of sending the SL CSI-RS is initial beam pairing, the second priority information of the SL CSI-RS can be selected from 1 or 2. Among them, the selection method among multiple priorities is uniform random selection, or depends on the terminal implementation.

进一步地，在本申请的实施例中，如果第二优先级信息是基于已分配的传输资源关联的优先级信息确定的，即对于根据已分配的传输资源关联的优先级信息确定SL CSI-RS的第二优先级信息的情况，第二优先级信息可以为已分配的传输资源关联的优先级信息。其中，已分配的传输资源(已分配的SL grant)用于同时传输SL CSI-RS和SL数据。Further, in an embodiment of the present application, if the second priority information is determined based on the priority information associated with the allocated transmission resources, that is, for the case where the second priority information of the SL CSI-RS is determined based on the priority information associated with the allocated transmission resources, the second priority information may be the priority information associated with the allocated transmission resources. Wherein, the allocated transmission resources (allocated SL grant) are used to simultaneously transmit the SL CSI-RS and SL data.

可以理解的是，在本申请的实施例中，如果待传输的SL CSI-RS与SL数据一起通过已分配的SL grant同时传输，那么该SL CSI-RS的第二优先级信息可以等于该已分配的SL grant关联的优先级信息。It can be understood that in an embodiment of the present application, if the SL CSI-RS to be transmitted is transmitted simultaneously with the SL data through the allocated SL grant, then the second priority information of the SL CSI-RS can be equal to the priority information associated with the allocated SL grant.

需要说明的是，在本申请的实施例中，已分配的传输资源关联的优先级信息可以用于确定已分配的传输资源的优先级。其中，本申请对优先级信息的形式不进行具体限定，例如，优先级信息可以为已分配的传输资源的优先级数值，也可以为指示已分配的传输资源的优先级数值的参数。It should be noted that, in the embodiments of the present application, the priority information associated with the allocated transmission resources can be used to determine the priority of the allocated transmission resources. The present application does not specifically limit the form of the priority information. For example, the priority information can be the priority value of the allocated transmission resources, or can be a parameter indicating the priority value of the allocated transmission resources.

进一步地，在本申请的实施例中，如果第二优先级信息是基于逻辑信道中的待传输数据对应的优先级信息确定的，即对于根据逻辑信道中的待传输数据对应的优先级信息确定SL CSI-RS的第二优先级信息的情况，第二优先级信息可以基于逻辑信道中的待传输数据对应的优先级信息中的最小优先级信息确定。Furthermore, in an embodiment of the present application, if the second priority information is determined based on the priority information corresponding to the data to be transmitted in the logical channel, that is, in the case where the second priority information of the SL CSI-RS is determined according to the priority information corresponding to the data to be transmitted in the logical channel, the second priority information can be determined based on the minimum priority information in the priority information corresponding to the data to be transmitted in the logical channel.

需要说明的是，在本申请的实施例中，待传输数据对应的优先级信息可以用于确定待传输数据的优先级。其中，本申请对优先级信息的形式不进行具体限定，例如，优先级信息可以为待传输数据的优先级数值，也可以为指示待传输数据的优先级数值的参数。It should be noted that, in the embodiments of the present application, the priority information corresponding to the data to be transmitted can be used to determine the priority of the data to be transmitted. The present application does not specifically limit the form of the priority information. For example, the priority information can be the priority value of the data to be transmitted, or can be a parameter indicating the priority value of the data to be transmitted.

可以理解的是，在本申请的实施例中，如果待传输的SL CSI-RS与SL数据并不能通过已分配的SL grant同时传输，那么该SL CSI-RS的第二优先级信息可以等于逻辑信道中待传输数据中最小的优先级信息，即第二优先级信息可以根据逻辑信道中待传输数据中最高的优先级的数值确定。It can be understood that in an embodiment of the present application, if the SL CSI-RS and SL data to be transmitted cannot be transmitted simultaneously through the allocated SL grant, then the second priority information of the SL CSI-RS can be equal to the minimum priority information of the data to be transmitted in the logical channel, that is, the second priority information can be determined according to the numerical value of the highest priority of the data to be transmitted in the logical channel.

可以理解的是，在本申请的实施例中，如果不存在已分配的传输资源(已分配的SL grant)，那么SL CSI-RS的第二优先级信息可以等于逻辑信道中待传输数据中最小的优先级信息，即第二优先级信息可以根据逻辑信道中待传输数据中最高的优先级的数值确定。It can be understood that in an embodiment of the present application, if there is no allocated transmission resource (allocated SL grant), then the second priority information of the SL CSI-RS can be equal to the minimum priority information of the data to be transmitted in the logical channel, that is, the second priority information can be determined based on the numerical value of the highest priority of the data to be transmitted in the logical channel.

也就是说，在本申请的实施例中，可以根据逻辑信道中待传输数据确定SL CSI-RS的第二优先级信息。其中，当第一终端需要发送SL CSI-RS或第一终端MAC层为SL CSI-RS传输触发资源选择(或重选)时，一种情况包括第一终端已经为逻辑信道中待传输数据触发资源选择，并分配SL grant(即已分配的传输资源)，且上述待传输的SL CSI-RS可以与数据一起通过该SL grant同时传输，则该SL CSI-RS的优先级信息等于该SL grant关联的优先级信息。另一种情况包括第一终端已经为逻辑信道中待传输数据触发资源选择，并分配SL grant(即已分配的传输资源)，且上述待传输的SL CSI-RS不可以与数据一起通过该SL grant同时传输，则该SL CSI-RS优先级信息等于逻辑信道中待传输数据中最小的优先级信息(即最高优先级)。再一种情况包括第一终端没有为逻辑信道中待传输数据触发资源选择，即不存在已分配的SL grant，则该SL CSI-RS的优先级信息等于终端逻辑信道中待传输数据中的最小优先级信息(即最高优先级)。That is to say, in an embodiment of the present application, the second priority information of the SL CSI-RS can be determined according to the data to be transmitted in the logical channel. Among them, when the first terminal needs to send the SL CSI-RS or the MAC layer of the first terminal triggers resource selection (or reselection) for the SL CSI-RS transmission, one situation includes that the first terminal has triggered resource selection for the data to be transmitted in the logical channel, and allocated SL grant (i.e., the allocated transmission resources), and the above-mentioned SL CSI-RS to be transmitted can be transmitted simultaneously with the data through the SL grant, then the priority information of the SL CSI-RS is equal to the priority information associated with the SL grant. Another situation includes that the first terminal has triggered resource selection for the data to be transmitted in the logical channel, and allocated SL grant (i.e., the allocated transmission resources), and the above-mentioned SL CSI-RS to be transmitted cannot be transmitted simultaneously with the data through the SL grant, then the SL CSI-RS priority information is equal to the smallest priority information (i.e., the highest priority) among the data to be transmitted in the logical channel. Another situation includes that the first terminal does not trigger resource selection for the data to be transmitted in the logical channel, that is, there is no allocated SL grant, then the priority information of the SL CSI-RS is equal to the minimum priority information (that is, the highest priority) among the data to be transmitted in the terminal logical channel.

进一步地，在本申请的实施例中，如果第二优先级信息是基于第二预设数值确定的，即对于根据第二预设数值确定SL CSI-RS的第二优先级信息的情况，第二优先级信息可以为第二预设数值。Furthermore, in an embodiment of the present application, if the second priority information is determined based on a second preset value, that is, for the case where the second priority information of the SL CSI-RS is determined according to the second preset value, the second priority information may be the second preset value.

示例性的，在一些实施例中，第二预设数值可以为大于等于1且小于等于8的整数。Exemplarily, in some embodiments, the second preset value may be an integer greater than or equal to 1 and less than or equal to 8.

也就是说，在本申请的实例中，SL CSI-RS的第二优先级信息可以为默认的整数值，如第二预设数值，其中，第二预设数值可以由标准预定义或约定。That is to say, in the example of the present application, the second priority information of the SL CSI-RS can be a default integer value, such as a second preset value, where the second preset value can be predefined or agreed upon by the standard.

示例性的，在一些实施例中，SL CSI-RS默认设为最高优先级，即第二预设数值为1，相应地，基于第二预设数值确定的第二优先级信息为1。这样配置的原因是考虑在毫米波系统中波束管理机制是保证通信可靠性的基础，如果收发终端之间没有建立合适的收发波束对，正常的数据传输无法成功传输，因此需要保证SL CSI-RS的优先发送。Exemplarily, in some embodiments, the SL CSI-RS is set to the highest priority by default, that is, the second preset value is 1, and accordingly, the second priority information determined based on the second preset value is 1. The reason for such configuration is that the beam management mechanism is the basis for ensuring communication reliability in the millimeter wave system. If a suitable transceiver beam pair is not established between the transceiver terminals, normal data transmission cannot be successfully transmitted, so it is necessary to ensure the priority transmission of the SL CSI-RS.

进一步地，在本申请的实施例中，对于同一个时隙内发送的多个SL CSI-RS，对应的第二优先级信息是相同的。Furthermore, in an embodiment of the present application, for multiple SL CSI-RS sent in the same time slot, the corresponding second priority information is the same.

可以理解的是，在本申请的实施例中，如果第一终端在一个时隙内发送多个SL CSI-RS，例如，多个SL CSI-RS以TDM的方式占用了一个时隙内的多个OFDM符号，如图9中CSI-RS#0，CSI-RS#1， CSI-RS#2…，该多个SL CSI-RS的优先级应是相同的，即多个SL CSI-RS对应有相同的第二优先级信息。It can be understood that in an embodiment of the present application, if the first terminal sends multiple SL CSI-RS in a time slot, for example, multiple SL CSI-RS occupy multiple OFDM symbols in a time slot in a TDM manner, such as CSI-RS#0, CSI-RS#1, CSI-RS#2…, the priorities of the multiple SL CSI-RSs should be the same, that is, the multiple SL CSI-RSs correspond to the same second priority information.

进一步地，在本申请的实施例中，侧行数据物理层优先级承载于在SCI中“priority”域，由于在共享资源池中需要考虑与侧行数据通信的兼容性(例如SL CSI-RS资源选择也需要考虑排除侧行数据的已选资源)，因此，SL CSI-RS的优先级(第二优先级信息)也由SCI侧行链路控制信息中“priority”域承载。Furthermore, in an embodiment of the present application, the physical layer priority of the sidelink data is carried in the "priority" field in the SCI. Since the compatibility with the sidelink data communication needs to be considered in the shared resource pool (for example, the SL CSI-RS resource selection also needs to consider the exclusion of the selected resources for the sidelink data), the priority of the SL CSI-RS (the second priority information) is also carried by the "priority" field in the SCI sidelink control information.

需要说明的是，在本申请的实施例中，对于取值为1-8的第二优先级信息，其开销为3比特，所指示的优先级数值为1到8。例如，“priority”域值为“000”指示的第二优先级信息为“1”，“priority”域值为“001”指示的第二优先级信息为“2”，“priority”域值为“010”指示的第二优先级信息为“3”，“priority”域值为“011”指示的第二优先级信息为“4”，“priority”域值为“100”指示的第二优先级信息为“5”，“priority”域值为“101”指示的第二优先级信息为“6”，“priority”域值为“110”指示的第二优先级信息为“7”，“priority”域值为“111”指示的第二优先级信息为“8”。It should be noted that, in the embodiment of the present application, for the second priority information with a value of 1-8, the overhead is 3 bits, and the indicated priority value is 1 to 8. For example, the second priority information indicated by the "priority" field value "000" is "1", the second priority information indicated by the "priority" field value "001" is "2", the second priority information indicated by the "priority" field value "010" is "3", the second priority information indicated by the "priority" field value "011" is "4", the second priority information indicated by the "priority" field value "100" is "5", the second priority information indicated by the "priority" field value "101" is "6", the second priority information indicated by the "priority" field value "110" is "7", and the second priority information indicated by the "priority" field value "111" is "8".

可以理解的是，在本申请的实施例中，对于SL CSI-RS的优先级来说，第二优先级信息越小，即优先级信息指示的优先级数值越小，对应的优先级越高，第二优先级信息越大，即优先级信息指示的优先级数值越大，对应的优先级越低。It can be understood that in the embodiments of the present application, for the priority of SL CSI-RS, the smaller the second priority information is, that is, the smaller the priority value indicated by the priority information is, the higher the corresponding priority is, and the larger the second priority information is, that is, the larger the priority value indicated by the priority information is, the lower the corresponding priority is.

需要说明的是，在本申请的实施例中，虽然“priority”指示域可以指示1到8共八个优先级，在一些情况下，SL CSI-RS可以只启用其中的部分数值，例如SL CSI-RS只有3个优先级1，2，3，则只使用“priority”域中“000”、“001”、“011”三种比特指示组合。It should be noted that, in the embodiments of the present application, although the "priority" indication field can indicate eight priorities from 1 to 8, in some cases, the SL CSI-RS may only enable some of the values. For example, if the SL CSI-RS has only three priorities 1, 2, and 3, only the three bit indication combinations of "000", "001", and "011" in the "priority" field are used.

进一步地，在本申请的实施例中，在SL CSI-RS和SL数据在相同时隙上传输的情况下，第一信息指示的第二优先级信息是与波束应用类型对应的优先级信息或SL数据的优先级信息。Further, in an embodiment of the present application, when SL CSI-RS and SL data are transmitted on the same time slot, the second priority information indicated by the first information is the priority information corresponding to the beam application type or the priority information of the SL data.

需要说明的是，在本申请的实施例中，在SL CSI-RS和SL数据在相同时隙上传输的情况下，如果SL CSI-RS的波束应用类型对应的优先级信息小于等于SL数据的优先级信息，那么第一信息指示的第二优先级信息为SL CSI-RS的波束应用类型对应的优先级信息，如果SL CSI-RS的波束应用类型对应的优先级信息大于SL数据的优先级信息，那么第一信息指示的第二优先级信息为SL数据的优先级信息。It should be noted that, in an embodiment of the present application, when SL CSI-RS and SL data are transmitted in the same time slot, if the priority information corresponding to the beam application type of SL CSI-RS is less than or equal to the priority information of SL data, then the second priority information indicated by the first information is the priority information corresponding to the beam application type of SL CSI-RS; if the priority information corresponding to the beam application type of SL CSI-RS is greater than the priority information of SL data, then the second priority information indicated by the first information is the priority information of SL data.

可以理解的是，在本申请的实施例中，在根据应用类型与优先级信息的预设映射关系初步确定与SL CSI-RS相对应的优先级信息之后，如果SL CSI-RS和SL数据在同一时隙进行传输，那么PSCCH中承载的第一阶SCI中“priority”域所指示的值，可以根据SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息进行确定。其中，可以比较SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息的大小，然后根据两者中较小的优先级信息确定第二优先级信息，即SCI中“priority”域所指示的第二优先级信息可以为SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息中的最小值。It can be understood that in the embodiments of the present application, after the priority information corresponding to the SL CSI-RS is preliminarily determined according to the preset mapping relationship between the application type and the priority information, if the SL CSI-RS and the SL data are transmitted in the same time slot, then the value indicated by the "priority" field in the first-order SCI carried in the PSCCH can be determined according to the priority information corresponding to the beam application type of the SL CSI-RS and the priority information of the SL data. Among them, the size of the priority information corresponding to the beam application type of the SL CSI-RS and the priority information of the SL data can be compared, and then the second priority information is determined according to the smaller priority information of the two, that is, the second priority information indicated by the "priority" field in the SCI can be the minimum value of the priority information corresponding to the beam application type of the SL CSI-RS and the priority information of the SL data.

进一步地，在本申请的实施例中，对于第一终端，即发送SL CSI-RS的终端，可以采用一种或者多种信息确定SL CSI-RS优先级信息(第二优先级信息)以及确定承载该优先级信息的方法。Furthermore, in an embodiment of the present application, for the first terminal, that is, the terminal that sends the SL CSI-RS, one or more information can be used to determine the SL CSI-RS priority information (second priority information) and a method for determining the carrying of the priority information.

相应地，在本申请的实施例中，对于第二终端，即接收测量SL CSI-RS的终端，在进行SL CSI-RS测量时，第二终端根据与所测量的SL CSI-RS关联的SCI确定所测量的SL CSI-RS的优先级信息。其中，SCI与SL CSI-RS关联关系指的是与SL CSI-RS在同一时隙传输的SCI。Accordingly, in an embodiment of the present application, for the second terminal, that is, the terminal that receives and measures the SL CSI-RS, when performing the SL CSI-RS measurement, the second terminal determines the priority information of the measured SL CSI-RS according to the SCI associated with the measured SL CSI-RS. The association relationship between the SCI and the SL CSI-RS refers to the SCI transmitted in the same time slot as the SL CSI-RS.

示例性的，在一些实施例中，对于第二终端，在确定SL CSI-RS的第二优先级信息时，SL CSI-RS的第二优先级信息可以为SL CSI-RS所关联的SCI所指示的优先级信息。Exemplarily, in some embodiments, for the second terminal, when determining the second priority information of the SL CSI-RS, the second priority information of the SL CSI-RS may be the priority information indicated by the SCI associated with the SL CSI-RS.

进一步地，在本申请的实施例中，如果第一优先级信息是基于SL CSI-RS对应的第二优先级信息确定的，即对于根据SL CSI-RS对应的第二优先级信息确定第一PSFCH的第一优先级信息的情况，第一优先级信息可以为SL CSI-RS对应的第二优先级信息。其中，第一PSFCH承载的波束上报信息包括一个SL CSI-RS对应的一个波束上报信息。Further, in an embodiment of the present application, if the first priority information is determined based on the second priority information corresponding to the SL CSI-RS, that is, for the case where the first priority information of the first PSFCH is determined according to the second priority information corresponding to the SL CSI-RS, the first priority information may be the second priority information corresponding to the SL CSI-RS. The beam reporting information carried by the first PSFCH includes one beam reporting information corresponding to one SL CSI-RS.

示例性的，在一些实施例中，图12是本申请实施例提供的PSFCH与SL CSI-RS的关联关系的示意图一，如图12所示，一种可能的关联关系为每一个SL CSI-RS关联一个第一PSFCH。Exemplarily, in some embodiments, Figure 12 is a schematic diagram of the association relationship between PSFCH and SL CSI-RS provided in an embodiment of the present application. As shown in Figure 12, a possible association relationship is that each SL CSI-RS is associated with a first PSFCH.

也就是说，在本申请的实施例中，在根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定第一PSFCH的第一优先级信息时，如果每一个SL CSI-RS关联一个第一PSFCH，即第一PSFCH与SL CSI-RS为一对一的映射关系，那么该第一PSFCH的第一优先级信息等于上述相关联的SL CSI-RS的第二优先级信息。That is to say, in an embodiment of the present application, when determining the first priority information of the first PSFCH based on the second priority information of the SL CSI-RS associated with the first PSFCH, if each SL CSI-RS is associated with a first PSFCH, that is, the first PSFCH and the SL CSI-RS are in a one-to-one mapping relationship, then the first priority information of the first PSFCH is equal to the second priority information of the above-mentioned associated SL CSI-RS.

可以理解的是，在本申请的实施例中，第二终端每测量一个SL CSI-RS后，可以基于第一PSFCH的第一优先级信息决定是否在其所关联的PSFCH occasion(PSFCH传输机会)上发送第一PSFCH，该第一PSFCH的第一优先级信息等于相关联的SL CSI-RS的第二优先级信息。相应地，第一终端可以根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定对应的第一优先级信息，从而进一步决定是否在其所关联的PSFCH occasion上接收第一PSFCH。It can be understood that in the embodiment of the present application, after the second terminal measures a SL CSI-RS, it can decide whether to send the first PSFCH on the PSFCH occasion (PSFCH transmission opportunity) associated therewith based on the first priority information of the first PSFCH. The first priority information of the first PSFCH is equal to the second priority information of the associated SL CSI-RS. Accordingly, the first terminal can determine the corresponding first priority information according to the second priority information of the SL CSI-RS associated with the first PSFCH, thereby further deciding whether to receive the first PSFCH on the PSFCH occasion to which it is associated.

需要说明的是，在本申请的实施例中，针对每一个SL CSI-RS关联一个第一PSFCH的情况，如果不同的SL CSI-RS关联相同的第一PSFCH，那么第一PSFCH与SL CSI-RS可以理解为一对多的映射关系，也就是说，虽然第一PSFCH只承载一个SL CSI-R对应的一个波束上报信息，但是第一PSFCH与SL CSI-R之间也可以为一对多的映射关系。此时，第一PSFCH的第一优先级信息依然需要根据其承载的那一个SL CSI-RS的优先级信息确定。It should be noted that, in the embodiment of the present application, for each SL CSI-RS associated with a first PSFCH, if different SL CSI-RS are associated with the same first PSFCH, then the first PSFCH and the SL CSI-RS can be understood as a one-to-many mapping relationship, that is, although the first PSFCH only carries one beam reporting information corresponding to one SL CSI-R, the first PSFCH and the SL CSI-R can also be a one-to-many mapping relationship. At this time, the first priority information of the first PSFCH still needs to be determined according to the priority information of the SL CSI-RS it carries.

进一步地，在本申请的实施例中，如果第一优先级信息是基于SL CSI-RS对应的第二优先级信息确定的，即对于根据SL CSI-RS对应的第二优先级信息确定第一PSFCH的第一优先级信息的情况，第一优先级信息可以基于多个SL CSI-RS对应的多个第二优先级信息中的最小优先级信息确定。其中，第一PSFCH承载的波束上报信息包括多个SL CSI-RS对应的多个波束上报信息。Further, in an embodiment of the present application, if the first priority information is determined based on the second priority information corresponding to the SL CSI-RS, that is, for the case where the first priority information of the first PSFCH is determined based on the second priority information corresponding to the SL CSI-RS, the first priority information can be determined based on the minimum priority information among the multiple second priority information corresponding to the multiple SL CSI-RS. The beam reporting information carried by the first PSFCH includes multiple beam reporting information corresponding to multiple SL CSI-RS.

示例性的，在一些实施例中，图13是本申请实施例提供的PSFCH与SL CSI-RS的关联关系的示意图二，如图13所示，一种可能的关联关系为多个SL CSI-RS关联一个第一PSFCH。Exemplarily, in some embodiments, Figure 13 is a second schematic diagram of the association relationship between PSFCH and SL CSI-RS provided in an embodiment of the present application. As shown in Figure 13, a possible association relationship is that multiple SL CSI-RS are associated with one first PSFCH.

也就是说，在本申请的实施例中，在根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定第一PSFCH的第一优先级信息时，如果多个SL CSI-RS关联一个第一PSFCH，即第一PSFCH与SL CSI-RS为一对多的映射关系，那么该第一PSFCH的第一优先级信息等于相关联的多个SL CSI-RS对应的多个第二优先级信息中的最小优先级信息。That is to say, in an embodiment of the present application, when determining the first priority information of the first PSFCH based on the second priority information of the SL CSI-RS associated with the first PSFCH, if multiple SL CSI-RS are associated with one first PSFCH, that is, the first PSFCH and the SL CSI-RS are in a one-to-many mapping relationship, then the first priority information of the first PSFCH is equal to the minimum priority information among the multiple second priority information corresponding to the associated multiple SL CSI-RS.

可以理解的是，在本申请的实施例中，第二终端在测量多SL CSI-RS后，可以基于第一PSFCH的第一优先级信息决定是否在其所关联的PSFCH occasion上通过第一PSFCH上报其中一个或多个SL CSI-RS相关的测量结果信息，若第一PSFCH上报多个SL CSI-RS的测量结果信息，则该第一PSFCH的第一优先级信息等于相关联的多个SL CSI-RS的多个第二优先级信息中最小的优先级信息。相应地，第一终端可以根据与第一PSFCH相关联的多个SL CSI-RS的多个第二优先级信息确定对应的第一优先级信息，从而进一步决定是否在其所关联的PSFCH occasion上接收第一PSFCH。It can be understood that in an embodiment of the present application, after measuring multiple SL CSI-RS, the second terminal can decide whether to report the measurement result information related to one or more SL CSI-RS through the first PSFCH on the PSFCH occasion to which it is associated based on the first priority information of the first PSFCH. If the first PSFCH reports the measurement result information of multiple SL CSI-RS, the first priority information of the first PSFCH is equal to the smallest priority information among the multiple second priority information of the associated multiple SL CSI-RS. Accordingly, the first terminal can determine the corresponding first priority information based on the multiple second priority information of the multiple SL CSI-RS associated with the first PSFCH, thereby further deciding whether to receive the first PSFCH on the PSFCH occasion to which it is associated.

需要说明的是，在本申请的实施例中，在通过第一PSFCH上报多个SL CSI-RS相关的测量结果信息的情况下，由于现有的PSFCH format 0无法承载多比特信息，需要为第一PSFCH引入新的格式从而可以承载多比特信息。It should be noted that, in an embodiment of the present application, when reporting multiple SL CSI-RS related measurement result information through the first PSFCH, since the existing PSFCH format 0 cannot carry multi-bit information, it is necessary to introduce a new format for the first PSFCH so that it can carry multi-bit information.

可以理解的是，在本申请的实施例中，第一PSFCH可以为承载一个或多个波束上报信息的PSFCH，第一PSFCH的第一优先级信息可以通过与第一PSFCH关联的SL CSI-RS的第二优先级信息确定。It can be understood that in an embodiment of the present application, the first PSFCH can be a PSFCH carrying one or more beam reporting information, and the first priority information of the first PSFCH can be determined by the second priority information of the SL CSI-RS associated with the first PSFCH.

需要说明的是，在本申请的实施例中，第一PSFCH与SL CSI-RS相关联，可以理解为第一PSFCH资源与SL CSI-RS的时域、频域、码域至少一种信息相关联。It should be noted that, in the embodiments of the present application, the first PSFCH is associated with the SL CSI-RS, which can be understood as the first PSFCH resource being associated with at least one information of the time domain, frequency domain, and code domain of the SL CSI-RS.

也就是说，在本申请的实施例中，在根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定第一PSFCH的第一优先级信息时，如果每一个SL CSI-RS关联一个第一PSFCH，即第一PSFCH与SL CSI-RS为一对一的映射关系，那么该第一PSFCH的优先级信息等于相关联的SL CSI-RS的优先级信息。如果多个SL CSI-RS关联一个第一PSFCH，即第一PSFCH与SL CSI-RS为一对多的映射关系，那么该第一PSFCH的优先级信息等于相关联的多个SL CSI-RS的多个第二优先级信息中最小的优先级信息。That is to say, in an embodiment of the present application, when determining the first priority information of the first PSFCH according to the second priority information of the SL CSI-RS associated with the first PSFCH, if each SL CSI-RS is associated with a first PSFCH, that is, the first PSFCH and the SL CSI-RS are in a one-to-one mapping relationship, then the priority information of the first PSFCH is equal to the priority information of the associated SL CSI-RS. If multiple SL CSI-RS are associated with a first PSFCH, that is, the first PSFCH and the SL CSI-RS are in a one-to-many mapping relationship, then the priority information of the first PSFCH is equal to the smallest priority information among the multiple second priority information of the associated multiple SL CSI-RS.

还需要说明的是，在本申请的实施例中，在根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定第一PSFCH的第一优先级信息时，对于一个SL CSI-RS关联一个第一PSFCH的情况，如果多个不同的SL CSI-RS关联同一个第一PSFCH，那么该第一PSFCH的第一优先级信息依然需要根据其承载的那一个SL CSI-RS的优先级信息确定。It should also be noted that, in an embodiment of the present application, when the first priority information of the first PSFCH is determined based on the second priority information of the SL CSI-RS associated with the first PSFCH, for the case where one SL CSI-RS is associated with one first PSFCH, if multiple different SL CSI-RSs are associated with the same first PSFCH, then the first priority information of the first PSFCH still needs to be determined based on the priority information of the SL CSI-RS it carries.

进一步地，在本申请的实施例中，如果第一优先级信息是基于优先级参考值确定的，即对于根据优先级参考值确定第一PSFCH的第一优先级信息的情况，第一优先级信息可以根据与SL CSI-RS关联的SCI所指示的优先级参考值确定。Furthermore, in an embodiment of the present application, if the first priority information is determined based on a priority reference value, that is, for the case where the first priority information of the first PSFCH is determined according to the priority reference value, the first priority information can be determined according to the priority reference value indicated by the SCI associated with the SL CSI-RS.

示例性的，在一些实施例中，优先级参考值的取值可以为大于等于1且小于等于8的整数。Exemplarily, in some embodiments, the priority reference value may be an integer greater than or equal to 1 and less than or equal to 8.

进一步地，在本申请的实施例中，第一优先级信息基于SCI所指示的一个优先级参考值确定；其中，第一PSFCH关联一个SCI。Further, in an embodiment of the present application, the first priority information is determined based on a priority reference value indicated by the SCI; wherein the first PSFCH is associated with an SCI.

也就是说，在本申请的实施例中，在根据SCI所指示的一个优先级参考值确定第一PSFCH的第一优先级信息时，如果一个第一PSFCH关联一个SCI，即第一PSFCH与SCI为一对一的映射关系，那么该第一PSFCH的第一优先级信息等于上述相关联的SCI所指示的一个优先级参考值。 That is to say, in an embodiment of the present application, when the first priority information of the first PSFCH is determined according to a priority reference value indicated by the SCI, if a first PSFCH is associated with an SCI, that is, the first PSFCH and the SCI are mapped one to one, then the first priority information of the first PSFCH is equal to a priority reference value indicated by the above-mentioned associated SCI.

需要说明的是，在本申请的实施例中，针对每一个SCI关联一个第一PSFCH的情况，如果不同的SCI关联相同的第一PSFCH，那么第一PSFCH与SCI可以理解为一对多的映射关系，也就是说，虽然一个第一PSFCH关联一个SCI，但是第一PSFCH与SCI之间也可以为一对多的映射关系。此时，第一PSFCH的第一优先级信息依然需要根据其承载的那一个SL CSI-RS所关联的SCI指示的优先级参考值确定。It should be noted that, in the embodiment of the present application, for each SCI associated with a first PSFCH, if different SCIs are associated with the same first PSFCH, then the first PSFCH and the SCI can be understood as a one-to-many mapping relationship, that is, although a first PSFCH is associated with a SCI, the first PSFCH and the SCI can also be a one-to-many mapping relationship. At this time, the first priority information of the first PSFCH still needs to be determined according to the priority reference value indicated by the SCI associated with the SL CSI-RS it carries.

进一步地，在本申请的实施例中，第一优先级信息基于多个SCI所指示的多个优先级参考值中的最小优先级信息确定；其中，第一PSFCH关联多个SCI。Further, in an embodiment of the present application, the first priority information is determined based on the minimum priority information among multiple priority reference values indicated by multiple SCIs; wherein the first PSFCH is associated with multiple SCIs.

也就是说，在本申请的实施例中，在根据SCI所指示的一个优先级参考值确定第一PSFCH的第一优先级信息时，如果一个第一PSFCH关联多个SCI，即第一PSFCH与SCI为一对多的映射关系，那么该第一PSFCH的第一优先级信息基于多个SCI所指示的多个优先级参考值中的最小优先级信息确定。That is to say, in an embodiment of the present application, when the first priority information of the first PSFCH is determined according to a priority reference value indicated by the SCI, if a first PSFCH is associated with multiple SCIs, that is, the first PSFCH and the SCI have a one-to-many mapping relationship, then the first priority information of the first PSFCH is determined based on the minimum priority information among the multiple priority reference values indicated by the multiple SCIs.

示例性的，在一些实施例中，可能不会显示地引入SL CSI-RS的第二优先级信息，而是通过与SL CSI-RS相关联的SCI指示优先级信息(优先级参考值)，在这种情况下，第一PSFCH的优先级信息可以根据与该第一PSFCH所关联的SCI所指示的优先级参考值确定。Exemplarily, in some embodiments, the second priority information of the SL CSI-RS may not be explicitly introduced, but the priority information (priority reference value) may be indicated by the SCI associated with the SL CSI-RS. In this case, the priority information of the first PSFCH can be determined based on the priority reference value indicated by the SCI associated with the first PSFCH.

示例性的，在一些实施例中，第一PSFCH与SCI可以包括有两种关联关系。其中，若第一PSFCH关联一个SCI，则该第一PSFCH的优先级信息等于所关联的SCI所指示的优先级参考值。若第一PSFCH关联多个SCI，则该第一PSFCH的优先级信息等于多个所关联的SCI所指示的优先级参考值中最小的优先级信息。Exemplarily, in some embodiments, the first PSFCH and the SCI may include two association relationships. If the first PSFCH is associated with one SCI, the priority information of the first PSFCH is equal to the priority reference value indicated by the associated SCI. If the first PSFCH is associated with multiple SCIs, the priority information of the first PSFCH is equal to the smallest priority information among the priority reference values indicated by the multiple associated SCIs.

还需要说明的是，在本申请的实施例中，在根据与第一PSFCH相关联的SCI所指示的优先级参考值确定第一PSFCH的第一优先级信息时，对于一个SCI关联一个第一PSFCH的情况，如果多个不同的SCI关联同一个第一PSFCH，那么该第一PSFCH的第一优先级信息依然需要根据其承载的那一个SL CSI-RS所关联的SCI指示的优先级参考值确定。It should also be noted that, in an embodiment of the present application, when determining the first priority information of the first PSFCH based on the priority reference value indicated by the SCI associated with the first PSFCH, for the case where one SCI is associated with one first PSFCH, if multiple different SCIs are associated with the same first PSFCH, then the first priority information of the first PSFCH still needs to be determined based on the priority reference value indicated by the SCI associated with the SL CSI-RS it carries.

可以理解的是，在本申请的实施例中，其中，SCI所指示的优先级参考值根据该SCI中“priority”域所指示的优先级信息确定，例如，根据该SCI中“priority”域所指示的优先级信息数值确定。It can be understood that in an embodiment of the present application, the priority reference value indicated by the SCI is determined according to the priority information indicated by the "priority" field in the SCI, for example, according to the value of the priority information indicated by the "priority" field in the SCI.

进一步地，在本申请的实施例中，如果第一优先级信息是基于第一预设数值确定的，即对于根据第一预设数值确定第一PSFCH的第一优先级信息的情况，第一优先级信息可以为第一预设数值。Further, in an embodiment of the present application, if the first priority information is determined based on a first preset value, that is, for the case where the first priority information of the first PSFCH is determined according to the first preset value, the first priority information may be the first preset value.

示例性的，在一些实施例中，第一预设数值可以为大于等于1且小于等于8的整数。Exemplarily, in some embodiments, the first preset value may be an integer greater than or equal to 1 and less than or equal to 8.

也就是说，在本申请的实例中，第一PSFCH的第一优先级信息可以为默认的整数值，如第一预设数值，其中，第一预设数值可以由标准预定义或约定。That is to say, in the example of the present application, the first priority information of the first PSFCH may be a default integer value, such as a first preset value, wherein the first preset value may be predefined or agreed upon by a standard.

示例性的，在一些实施例中，第一PSFCH的第一优先级信息默认设为最高优先级，即第一预设数值为1，相应地，基于第一预设数值确定的第一优先级信息为1。这样配置的优势在于第一终端或第二终端在多种类型的PSFCH中优先处理第一PSFCH，以便在FR2频段保证波束管理机制的有效性，从而保证通信可靠性。Exemplarily, in some embodiments, the first priority information of the first PSFCH is set to the highest priority by default, that is, the first preset value is 1, and accordingly, the first priority information determined based on the first preset value is 1. An advantage of such a configuration is that the first terminal or the second terminal prioritizes the first PSFCH among multiple types of PSFCHs, so as to ensure the effectiveness of the beam management mechanism in the FR2 frequency band, thereby ensuring communication reliability.

也就是说，在本申请的实施例中，第一终端可以先确定第一PSFCH的第一优先级信息，然后可以基于第一优先级信息接收第一PSFCH承载的波束上报信息。其中，第一优先级信息可以基于以下一种或多种信息确定：SL CSI-RS的第二优先级信息，优先级参考值，第一预设数值。That is, in an embodiment of the present application, the first terminal may first determine the first priority information of the first PSFCH, and then may receive the beam reporting information carried by the first PSFCH based on the first priority information. The first priority information may be determined based on one or more of the following information: the second priority information of the SL CSI-RS, the priority reference value, and the first preset value.

相应地，在本申请的实施例中，第二终端可以先确定第一PSFCH的第一优先级信息，然后可以基于第一优先级信息发送第一PSFCH承载的波束上报信息。其中，第一优先级信息可以基于以下一种或多种信息确定：SL CSI-RS的第二优先级信息，优先级参考值，第一预设数值。Accordingly, in an embodiment of the present application, the second terminal may first determine the first priority information of the first PSFCH, and then may send the beam reporting information carried by the first PSFCH based on the first priority information. The first priority information may be determined based on one or more of the following information: the second priority information of the SL CSI-RS, a priority reference value, and a first preset value.

由此可见，在本申请的实施例中，第一PSFCH的第一优先级信息的确定方式，可以应用于第一终端，也可以应用于第二终端。本申请实施例不进行具体限定。It can be seen that in the embodiment of the present application, the method for determining the first priority information of the first PSFCH can be applied to the first terminal or the second terminal. The embodiment of the present application does not make any specific limitation.

进一步地，在本申请的实施例中，第一终端在基于第一PSFCH对应的第一优先级接收第一PSFCH承载的波束上报信息时，第一终端可以基于第一优先级信息和PSFCH状态，接收第一PSFCH承载的波束上报信息。Further, in an embodiment of the present application, when the first terminal receives beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, the first terminal can receive the beam reporting information carried by the first PSFCH based on the first priority information and the PSFCH status.

也就是说，在本申请的实施例中，第一终端在接收波束上报信息时，可以选择基于第一PSFCH的第一优先级信息和PSFCH状态，接收第一PSFCH承载的波束上报信息。That is to say, in an embodiment of the present application, when receiving beam reporting information, the first terminal can choose to receive the beam reporting information carried by the first PSFCH based on the first priority information and PSFCH status of the first PSFCH.

需要说明的是，在本申请的实施例中，PSFCH状态包括发送状态或接收状态。It should be noted that, in the embodiments of the present application, the PSFCH state includes a sending state or a receiving state.

进一步地，在本申请的实施例中，PSFCH状态可以基于PSFCH的预设处理顺序和第一PSFCH集合确定；其中，PSFCH的预设处理顺序包括最先处理第一PSFCH，或者，最后处理第一PSFCH；第一PSFCH集合包括一个或多个待发送的第一PSFCH，和/或一个或多个待接收的第一PSFCH。Further, in an embodiment of the present application, the PSFCH state can be determined based on a preset processing order of the PSFCH and a first PSFCH set; wherein the preset processing order of the PSFCH includes processing the first PSFCH first, or processing the first PSFCH last; the first PSFCH set includes one or more first PSFCHs to be sent, and/or one or more first PSFCHs to be received.

需要说明的是，在本申请的实施例中，在SL系统中，在资源池中的一个PSFCH occasion上可能存在多种不同类型的PSFCH需要同时发送/接收，其中，一个PSFCH occasion上至少可以存在以下一种或多种类型的PSFCH：承载混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)的正确应答指令(ACKnowledge，ACK)信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH。It should be noted that, in the embodiment of the present application, in the SL system, a PSFCH occasion in the resource pool can be There may be multiple different types of PSFCHs that need to be sent/received simultaneously, among which, at least one or more of the following types of PSFCHs may exist on a PSFCH occasion: a PSFCH carrying the correct response instruction (ACKnowledge, ACK) information of the hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ), a PSFCH carrying resource conflict information, and a first PSFCH.

可以理解的是，在本申请的实施例中，PSFCH的预设处理顺序可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的处理顺序。It can be understood that in an embodiment of the present application, the preset processing order of PSFCH can indicate the processing order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH.

示例性的，在一些实施例中，PSFCH的预设处理顺序可以指示最先处理第一PSFCH。其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，优先处理第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，优先处理第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，优先处理第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，处理第一PSFCH。Exemplarily, in some embodiments, the preset processing order of PSFCH may indicate that the first PSFCH is processed first. Specifically, it includes: one situation is that there are PSFCH carrying HARQ-ACK information and PSFCH carrying resource conflict information at the same time, and the first PSFCH is processed first first; another situation is that there are PSFCH carrying HARQ-ACK information and the first PSFCH at the same time, and the first PSFCH is processed first first; another situation is that there are PSFCH carrying resource conflict information and the first PSFCH at the same time, and the first PSFCH is processed first first; the processing order between them; another situation is that there is only the first PSFCH, and the first PSFCH is processed.

示例性的，在一些实施例中，PSFCH的预设处理顺序可以指示最后处理第一PSFCH。其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，最后处理第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，最后处理第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，最后处理第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，处理第一PSFCH。Exemplarily, in some embodiments, the preset processing order of PSFCH may indicate that the first PSFCH is processed last. Specifically, it includes: one case where there are PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and the first PSFCH at the same time, and the first PSFCH is processed last; another case where there are PSFCH carrying HARQ-ACK information and the first PSFCH at the same time, and the first PSFCH is processed last; another case where there are PSFCH carrying resource conflict information and the first PSFCH at the same time, and the first PSFCH is processed last; the processing order between them; another case where there is only the first PSFCH, and the first PSFCH is processed.

需要说明的是，在本申请的实施例中，PSFCH的预设处理顺序还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种处理顺序，本申请不进行具体限定。It should be noted that in an embodiment of the present application, the preset processing order of PSFCH can also indicate any processing order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make specific limitations.

需要说明的是，在本申请的实施例中，在SL系统中，在资源池中任意一个PSFCH occasion可能既存在待发送的PSFCH，同时也存在待接收的PSFCH，但是，由于半双工限制，在发送状态或接收状态中只能选择一个PSFCH状态进行相关PSFCH操作。It should be noted that in the embodiments of the present application, in the SL system, in any PSFCH occasion in the resource pool, there may be both PSFCH to be sent and PSFCH to be received. However, due to half-duplex limitations, only one PSFCH state can be selected in the sending state or the receiving state to perform related PSFCH operations.

示例性的，在一些实施例中，如果同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，那么可以先根据PSFCH承载信息的内容和PSFCH优先级信息确定PSFCH状态为发送状态或接收状态。Exemplarily, in some embodiments, if there are both a PSFCH carrying HARQ-ACK information and a PSFCH carrying resource conflict information, the PSFCH state can be first determined as a sending state or a receiving state based on the content of the PSFCH carrying information and the PSFCH priority information.

示例性的，在一些实施例中，如果同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，在进行PSFCH状态的确定时，可以优先根据承载HARQ-ACK信息的PSFCH集合中所关联的优先级信息最小的PSFCH对应的状态确定PSFCH状态为发送状态或接收状态。Exemplarily, in some embodiments, if there are both a PSFCH carrying HARQ-ACK information and a PSFCH carrying resource conflict information, when determining the PSFCH state, the PSFCH state can be determined as a sending state or a receiving state based on the state corresponding to the PSFCH with the smallest priority information associated with the PSFCH set carrying the HARQ-ACK information.

示例性的，在一些实施例中，如果没有承载HARQ-ACK信息的PSFCH，但存在承载冲突信息的PSFCH，则根据承载冲突信息的PSFCH集合中所关联的优先级信息最小的PSFCH对应的状态PSFCH状态为发送状态或接收状态。Exemplarily, in some embodiments, if there is no PSFCH carrying HARQ-ACK information, but there is a PSFCH carrying conflict information, the PSFCH state corresponding to the PSFCH with the smallest priority information associated with the PSFCH set carrying the conflict information is a sending state or a receiving state.

需要说明的是，在本申请的实施例中，第一PSFCH集合可以包括一个或多个待发送的第一PSFCH，和/或一个或多个待接收的第一PSFCH。It should be noted that, in the embodiment of the present application, the first PSFCH set may include one or more first PSFCHs to be sent, and/or one or more first PSFCHs to be received.

也就是说，在本申请的实施例中，在SL系统中，在资源池中的一个PSFCH occasion上可能存在多种不同类型的PSFCH，且每一种类型的PSFCH可以包括待接收或待发送的一个或多个PSFCH，该待接收或待发送的一个或多个PSFCH可以构成该类型的PSFCH的PSFCH集合。That is, in an embodiment of the present application, in the SL system, there may be multiple different types of PSFCHs on a PSFCH occasion in a resource pool, and each type of PSFCH may include one or more PSFCHs to be received or to be sent, and the one or more PSFCHs to be received or to be sent may constitute a PSFCH set of this type of PSFCH.

相应地，在本申请的实施例中，第一终端在接收第一PSFCH承载的波束上报信息时，可以选择先根据PSFCH的预设处理顺序和第一PSFCH集合确定PSFCH状态，然后根据第一PSFCH的第一优先级信息和PSFCH状态，接收波束上报信息。Accordingly, in an embodiment of the present application, when the first terminal receives beam reporting information carried by the first PSFCH, it can choose to first determine the PSFCH state according to the preset processing order of the PSFCH and the first PSFCH set, and then receive the beam reporting information according to the first priority information of the first PSFCH and the PSFCH state.

需要说明的是，在本申请的实施例中，在根据PSFCH的预设处理顺序和第一PSFCH集合确定PSFCH状态时，如果PSFCH的预设处理顺序指示第一PSFCH的优先级最高，即PSFCH的预设处理顺序指示最先处理第一PSFCH，那么对于第一PSFCH集合中的一个或多个待发送的第一PSFCH，和/或一个或多个待接收的第一PSFCH，可以先确定每一个第一PSFCH的第一优先级信息，如果第一PSFCH集合中、第一优先级信息最小的第一PSFCH为待发送的第一PSFCH，那么可以确定PSFCH状态为发送状态，反之，如果第一PSFCH集合中、第一优先级信息最小的第一PSFCH为待接收的第一PSFCH，那么可以确定PSFCH状态为接收状态。It should be noted that, in an embodiment of the present application, when the PSFCH state is determined according to the preset processing order of the PSFCH and the first PSFCH set, if the preset processing order of the PSFCH indicates that the first PSFCH has the highest priority, that is, the preset processing order of the PSFCH indicates that the first PSFCH is processed first, then for one or more first PSFCHs to be sent in the first PSFCH set, and/or one or more first PSFCHs to be received, the first priority information of each first PSFCH can be determined first, if the first PSFCH with the smallest first priority information in the first PSFCH set is the first PSFCH to be sent, then the PSFCH state can be determined to be the sending state, conversely, if the first PSFCH with the smallest first priority information in the first PSFCH set is the first PSFCH to be received, then the PSFCH state can be determined to be the receiving state.

也就是说，在本申请的实施例中，如果PSFCH的预设处理顺序指示最先处理第一PSFCH，那么只有当第一PSFCH集合中最小的第一优先级信息对应的第一PSFCH为待接收的第一PSFCH时，可以确定PSFCH状态为接收状态，此时，第一终端在该PSFCH occasion可以接收第一PSFCH。That is to say, in an embodiment of the present application, if the preset processing order of PSFCH indicates that the first PSFCH is processed first, then only when the first PSFCH corresponding to the smallest first priority information in the first PSFCH set is the first PSFCH to be received, it can be determined that the PSFCH state is the receiving state. At this time, the first terminal can receive the first PSFCH at this PSFCH occasion.

示例性的，在一些实施例中，如果第一PSFCH的优先度最高，若存在第一PSFCH的发送或接收，可以优先考虑处理第一PSFCH。其中，如果存在待发送和/或待接收的第一PSFCH，可以确定第一优先级信息集合和/或第二优先级信息集合，其中，第一优先级信息集合关联于待发送的第一 PSFCH的集合，第二优先级信息集合关联于待接收的第一PSFCH的集合，可以根据第一优先级信息集合和/或第二优先级信息集合中最小的优先级信息所对应的第一PSFCH确定发送PSFCH或者接收PSFCH。具体地，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the first PSFCH has the highest priority, if there is a first PSFCH to be sent or received, the first PSFCH can be processed first. If there is a first PSFCH to be sent and/or to be received, a first priority information set and/or a second priority information set can be determined, wherein the first priority information set is associated with the first PSFCH to be sent. The set of PSFCHs, the second priority information set is associated with the set of first PSFCHs to be received, and the sending or receiving of PSFCH can be determined according to the first PSFCH corresponding to the smallest priority information in the first priority information set and/or the second priority information set. Specifically, if the above-mentioned first PSFCH is the PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs on this PSFCH occasion; if the above-mentioned first PSFCH is the PSFCH to be received by the terminal, the terminal receives one or more PSFCHs on this PSFCH occasion.

需要说明的是，在本申请的实施例中，在根据PSFCH的预设处理顺序和第一PSFCH集合确定PSFCH状态时，如果PSFCH的预设处理顺序指示第一PSFCH的优先级最低，即PSFCH的预设处理顺序指示最后处理第一PSFCH，那么可以根据承载HARQ-ACK信息的PSFCH和/或承载资源冲突信息的PSFCH所对应的PSFCH优先级信息确定PSFCH状态为发送状态或接收状态。It should be noted that, in an embodiment of the present application, when the PSFCH state is determined according to the preset processing order of the PSFCH and the first PSFCH set, if the preset processing order of the PSFCH indicates that the first PSFCH has the lowest priority, that is, the preset processing order of the PSFCH indicates that the first PSFCH is processed last, then the PSFCH state can be determined as a sending state or a receiving state based on the PSFCH priority information corresponding to the PSFCH carrying HARQ-ACK information and/or the PSFCH carrying resource conflict information.

也就是说，在本申请的实施例中，如果PSFCH的预设处理顺序指示最后处理第一PSFCH，那么此时不再会根据第一PSFCH的第一优先级信息进行PSFCH状态的确定，并且会在处理完承载HARQ-ACK信息的PSFCH和/或承载资源冲突信息的PSFCH之后，再进行第一PSFCH的处理。That is to say, in an embodiment of the present application, if the preset processing order of PSFCH indicates that the first PSFCH is processed last, then the PSFCH state will no longer be determined based on the first priority information of the first PSFCH, and the first PSFCH will be processed after the PSFCH carrying HARQ-ACK information and/or the PSFCH carrying resource conflict information is processed.

需要说明的是，在本申请的实施例中，如果仅存在第一PSFCH，即仅处理第一PSFCH，那么对于第一PSFCH集合中的一个或多个待发送的第一PSFCH，和/或一个或多个待接收的第一PSFCH，可以先确定每一个第一PSFCH的第一优先级信息，如果第一PSFCH集合中、第一优先级信息最小的第一PSFCH为待发送的第一PSFCH，那么可以确定PSFCH状态为发送状态，反之，如果第一PSFCH集合中、第一优先级信息最小的第一PSFCH为待接收的第一PSFCH，那么可以确定PSFCH状态为接收状态。It should be noted that, in an embodiment of the present application, if only the first PSFCH exists, that is, only the first PSFCH is processed, then for one or more first PSFCHs to be sent in the first PSFCH set, and/or one or more first PSFCHs to be received, the first priority information of each first PSFCH can be determined first. If the first PSFCH with the smallest first priority information in the first PSFCH set is the first PSFCH to be sent, then the PSFCH state can be determined to be the sending state. Conversely, if the first PSFCH with the smallest first priority information in the first PSFCH set is the first PSFCH to be received, then the PSFCH state can be determined to be the receiving state.

也就是说，在本申请的实施例中，如果仅存在第一PSFCH，那么只有当第一PSFCH集合中最小的第一优先级信息对应的第一PSFCH为待接收的第一PSFCH时，可以确定PSFCH状态为接收状态，此时，第一终端在该PSFCH occasion可以接收第一PSFCH。That is to say, in an embodiment of the present application, if only the first PSFCH exists, then only when the first PSFCH corresponding to the smallest first priority information in the first PSFCH set is the first PSFCH to be received, can the PSFCH state be determined to be the receiving state. At this time, the first terminal can receive the first PSFCH at this PSFCH occasion.

示例性的，在一些实施例中，如果第一PSFCH的优先度最低，那么只有在不存在其他类型的PSFCH时，会根据第一PSFCH的第一优先级信息确定PSFCH状态。其中，若存在第一PSFCH的发送或接收，可以优先考虑处理第一PSFCH。其中，如果存在待发送和/或待接收的第一PSFCH，可以确定第一优先级信息集合和/或第二优先级信息集合，其中，第一优先级信息集合关联于待发送的第一PSFCH的集合，第二优先级信息集合关联于待接收的第一PSFCH的集合，可以根据第一优先级信息集合和/或第二优先级信息集合中最小的优先级信息所对应的第一PSFCH确定发送PSFCH或者接收PSFCH。具体地，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the first PSFCH has the lowest priority, then the PSFCH state will be determined according to the first priority information of the first PSFCH only when there is no other type of PSFCH. Wherein, if there is a transmission or reception of the first PSFCH, the first PSFCH can be processed with priority. Wherein, if there is a first PSFCH to be sent and/or to be received, a first priority information set and/or a second priority information set can be determined, wherein the first priority information set is associated with the set of first PSFCHs to be sent, and the second priority information set is associated with the set of first PSFCHs to be received, and the transmission of PSFCH or reception of PSFCH can be determined according to the first PSFCH corresponding to the smallest priority information in the first priority information set and/or the second priority information set. Specifically, if the above-mentioned first PSFCH is a PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs at this PSFCH occasion; if the above-mentioned first PSFCH is a PSFCH to be received by the terminal, the terminal receives one or more PSFCHs at this PSFCH occasion.

示例性的，在一些实施例中，如果第一PSFCH的优先度仅次于承载HARQ-ACK信息的PSFCH，如果不存在待发送/或待接收的承载HARQ-ACK的PSFCH时，则根据第一PSFCH的第一优先级信息确定PSFCH状态。其中，若存在第一PSFCH的发送或接收，可以优先考虑处理第一PSFCH。其中，如果存在待发送和/或待接收的第一PSFCH，可以确定第一优先级信息集合和/或第二优先级信息集合，其中，第一优先级信息集合关联于待发送的第一PSFCH的集合，第二优先级信息集合关联于待接收的第一PSFCH的集合，可以根据第一优先级信息集合和/或第二优先级信息集合中最小的优先级信息所对应的第一PSFCH确定发送PSFCH或者接收PSFCH。具体地，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the priority of the first PSFCH is second only to the PSFCH carrying HARQ-ACK information, if there is no PSFCH carrying HARQ-ACK to be sent/or received, the PSFCH state is determined according to the first priority information of the first PSFCH. Among them, if there is a first PSFCH to be sent or received, the first PSFCH can be given priority. Among them, if there is a first PSFCH to be sent and/or to be received, a first priority information set and/or a second priority information set can be determined, wherein the first priority information set is associated with the set of first PSFCHs to be sent, and the second priority information set is associated with the set of first PSFCHs to be received. The sending of PSFCH or the receiving of PSFCH can be determined according to the first PSFCH corresponding to the smallest priority information in the first priority information set and/or the second priority information set. Specifically, if the above-mentioned first PSFCH is the PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs in this PSFCH occasion; if the above-mentioned first PSFCH is the PSFCH to be received by the terminal, the terminal receives one or more PSFCHs in this PSFCH occasion.

也就是说，在本申请的实施例中，无论是第一终端还是第二终端，在PSFCH occasion上进行PSFCH的接收或发送时，可以先根据PSFCH的优先级数据确定PSFCH状态，如果PSFCH状态为发送状态，则可以在PSFCH occasion上发送PSFCH，如果PSFCH状态为接收状态，则可以在PSFCH occasion上接收PSFCH。That is to say, in an embodiment of the present application, whether it is the first terminal or the second terminal, when receiving or sending PSFCH on PSFCH occasion, the PSFCH state can be first determined according to the priority data of PSFCH. If the PSFCH state is a sending state, the PSFCH can be sent on the PSFCH occasion. If the PSFCH state is a receiving state, the PSFCH can be received on the PSFCH occasion.

进一步地，在本申请的实施例中，第一终端在基于第一PSFCH对应的第一优先级接收第一PSFCH承载的波束上报信息时，第一终端可以基于第一优先级信息，PSFCH的预设接收顺序以及PSFCH接收数量阈值中的一种或多种接收第一PSFCH承载的波束上报信息。Furthermore, in an embodiment of the present application, when the first terminal receives beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, the first terminal can receive the beam reporting information carried by the first PSFCH based on one or more of the first priority information, the preset reception order of the PSFCH, and the PSFCH reception number threshold.

也就是说，在本申请的实施例中，第一终端在接收波束上报信息时，可以参考以下信息中的一种或多种信息：第一PSFCH的第一优先级信息，PSFCH的预设接收顺序以及PSFCH接收数量阈值。That is to say, in an embodiment of the present application, when receiving beam reporting information, the first terminal can refer to one or more of the following information: the first priority information of the first PSFCH, the preset receiving order of the PSFCH, and the PSFCH receiving quantity threshold.

需要说明的是，在本申请的实施例中，PSFCH接收数量阈值表征SL CSI-RS对应的PSFCH传输机会同时接收PSFCH的上限数量N，N为大于0的整数。It should be noted that, in the embodiments of the present application, the PSFCH reception number threshold represents the upper limit number N of PSFCH transmission opportunities corresponding to the SL CSI-RS that can simultaneously receive PSFCHs, where N is an integer greater than 0.

需要说明的是，在本申请的实施例中，PSFCH的预设接收顺序可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的接收顺序。It should be noted that, in the embodiment of the present application, the preset receiving order of PSFCH can indicate the carrying HARQ-ACK information The receiving order between the PSFCH, and/or, the PSFCH carrying resource conflict information, and/or, the first PSFCH.

示例性的，在一些实施例中，PSFCH的预设接收顺序可以指示最先接收第一PSFCH，其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，优先接收第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，优先接收第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，优先接收第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，接收第一PSFCH。Exemplarily, in some embodiments, the preset receiving order of PSFCH may indicate that the first PSFCH is received first, which specifically includes: one situation is that there are PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and the first PSFCH at the same time, and the first PSFCH is received first; another situation is that there are PSFCH carrying HARQ-ACK information and the first PSFCH at the same time, and the first PSFCH is received first; another situation is that there are PSFCH carrying resource conflict information and the first PSFCH at the same time, and the first PSFCH is received first; the processing order between them; another situation is that only the first PSFCH exists, and the first PSFCH is received.

示例性的，在一些实施例中，PSFCH的预设接收顺序可以指示最后接收第一PSFCH，其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，最后接收第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，最后接收第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，最后接收第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，接收第一PSFCH。Exemplarily, in some embodiments, the preset receiving order of PSFCH may indicate that the first PSFCH is received last, which specifically includes: one situation is that there are PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and first PSFCH at the same time, and the first PSFCH is received last; another situation is that there are PSFCH carrying HARQ-ACK information and first PSFCH at the same time, and the first PSFCH is received last; another situation is that there are PSFCH carrying resource conflict information and first PSFCH at the same time, and the first PSFCH is received last; the processing order in between; another situation is that only the first PSFCH exists, and the first PSFCH is received.

需要说明的是，在本申请的实施例中，PSFCH的预设接收顺序还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种接收顺序，本申请不进行具体限定。It should be noted that in an embodiment of the present application, the preset reception order of PSFCH can also indicate any reception order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make specific limitations.

进一步地，在本申请的实施例中，在确定PSFCH状态之后，如果PSFCH状态为接收状态，那么可以选择在SL CSI-RS对应的PSFCH传输机会(PSFCH occasion)接收PSFCH。具体地，第一终端可以按照第一优先级信息，PSFCH的预设接收顺序以及PSFCH接收数量阈值中的一种或多种接收承载波束上报信息的第一PSFCH。Further, in an embodiment of the present application, after determining the PSFCH state, if the PSFCH state is a receiving state, then the PSFCH transmission opportunity (PSFCH occasion) corresponding to the SL CSI-RS can be selected to receive the PSFCH. Specifically, the first terminal can receive the first PSFCH carrying the beam reporting information according to one or more of the first priority information, the preset receiving order of the PSFCH, and the PSFCH receiving quantity threshold.

可以理解的是，在本申请的实施例中，由于第一终端同时接收多个PSFCH的最大数量受限，若超过一定的数量限制，第一终端无法完成所有待接收的PSFCH接收处理，只能选择接收其中部分PSFCH。It is understandable that in the embodiments of the present application, since the maximum number of multiple PSFCHs that can be received simultaneously by the first terminal is limited, if a certain number limit is exceeded, the first terminal cannot complete the reception processing of all PSFCHs to be received and can only choose to receive some of the PSFCHs.

示例性的，在一些实施例中，第一终端待接收的PSFCH个数为N_{sch，Rx，PSFCH}，第一终端支持同时接收PSFCH的最大数量(PSFCH接收数量阈值)为N_max，PSFCH，第一终端最终传输的PSFCH数量为N_Rx，PSFCH，若N_{sch，Rx，PSFCH}>N_max，PSFCH，则N_Rx，PSFCH＝N_max，PSFCH；若N_{sch，Rx，PSFCH}≤N_Max，PSFCH，则N_Rx，PSFCH＝N_{sch，Rx，PSFCH}。Exemplarily, in some embodiments, the number of PSFCHs to be received by the first terminal is N _sch,Rx,PSFCH , the maximum number of PSFCHs supported for simultaneous reception by the first terminal (PSFCH reception number threshold) is N _max,PSFCH , and the number of PSFCHs finally transmitted by the first terminal is N _Rx,PSFCH . If N _sch,Rx,PSFCH >N _max,PSFCH , then N _Rx,PSFCH ＝N _max,PSFCH ; if N _sch,Rx,PSFCH ≤N _Max,PSFCH , then N _Rx,PSFCH ＝N _sch,Rx,PSFCH .

可以理解的是，在本申请的实施例中，由于一个PSFCH occasion上可以存在包括承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH等一种或多种类型的PSFCH，因此，还需要根据PSFCH的预设接收顺序来进一步对第一终端接收的PSFCH进行限制。It can be understood that in the embodiments of the present application, since one PSFCH occasion may contain one or more types of PSFCHs including a PSFCH carrying HARQ-ACK information, and/or a PSFCH carrying resource conflict information, and/or a first PSFCH, it is necessary to further restrict the PSFCH received by the first terminal according to the preset reception order of the PSFCH.

也就是说，在本申请的实施例中，考虑到可能存在多种类型的待接收的PSFCH，以及同时接收多个PSFCH的最大能力，在最终所能接收的N_Rx，PSFCH个PSFCH中，第一终端可以基于第一优先级信息，PSFCH的预设接收顺序以及PSFCH接收数量阈值中的一种或多种接收第一PSFCH。That is to say, in an embodiment of the present application, taking into account the possibility of multiple types of PSFCHs to be received and the maximum capability of simultaneously receiving multiple PSFCHs, among the N _Rx,PSFCH PSFCHs that can be finally received, the first terminal can receive the first PSFCH based on the first priority information, the preset reception order of PSFCH and the PSFCH reception quantity threshold or more.

进一步地，在本申请的实施例中，在PSFCH的预设接收顺序指示最先接收第一PSFCH，且待接收的第一PSFCH的数量大于N的情况下，第一终端基于优先级信息最小的N个待接收的第一PSFCH接收波束上报信息。Furthermore, in an embodiment of the present application, when the preset reception order of PSFCH indicates that the first PSFCH is received first, and the number of first PSFCHs to be received is greater than N, the first terminal receives beam reporting information based on the N first PSFCHs to be received with the smallest priority information.

需要说明是，在本申请的实施例中，如果PSFCH的预设接收顺序指示最先接收第一PSFCH，那么第一终端可以优先接收第一PSFCH。具体地，如果待接收的第一PSFCH的数量超过PSFCH接收数量阈值，即待接收的第一PSFCH的数量大于N，那么第一终端可以优先接收第一优先级信息最小的N个第一PSFCH，从而通过N个待接收的第一PSFCH接收波束上报信息。It should be noted that, in an embodiment of the present application, if the preset reception order of the PSFCH indicates that the first PSFCH is received first, then the first terminal can give priority to receiving the first PSFCH. Specifically, if the number of first PSFCHs to be received exceeds the PSFCH reception number threshold, that is, the number of first PSFCHs to be received is greater than N, then the first terminal can give priority to receiving the N first PSFCHs with the smallest first priority information, thereby receiving beam reporting information through the N first PSFCHs to be received.

示例性的，在一些实施例中，图14是本申请实施例提供的接收第一PSFCH的实现示意图一，如图14所示，第一终端待接收的三种PSFCH的总数为8，第一终端所支持的同时接收PSFCH的最大数量为4，即第一终端能够同时接收的PSFCH数量应为4。此时，如果PSFCH的预设接收顺序指示优先接收第一PSFCH，那么只有在接收全部第一PSFCH之后，才会考虑接收其他类型的PSFCH。由于待接收的第一PSFCH数量为5，无法接收全部第一PSFCH，此时，按照优先级信息(如优先级数值)升序的方式选择待接收的第一PSFCH，最后所能接收的第一PSFCH为第一优先级信息(如第一优先级数值)为1，3，4，6的第一PSFCH。Exemplarily, in some embodiments, FIG. 14 is a schematic diagram of the implementation of receiving the first PSFCH provided by an embodiment of the present application. As shown in FIG. 14, the total number of three types of PSFCHs to be received by the first terminal is 8, and the maximum number of PSFCHs supported by the first terminal to be received simultaneously is 4, that is, the number of PSFCHs that the first terminal can receive simultaneously should be 4. At this time, if the preset reception order of the PSFCH indicates that the first PSFCH is received first, then only after all the first PSFCHs are received will other types of PSFCHs be considered for reception. Since the number of first PSFCHs to be received is 5, it is impossible to receive all the first PSFCHs. At this time, the first PSFCHs to be received are selected in ascending order according to the priority information (such as the priority value), and the first PSFCHs that can be received in the end are the first PSFCHs whose first priority information (such as the first priority value) is 1, 3, 4, and 6.

进一步地，在本申请的实施例中，在PSFCH的预设接收顺序指示优先接收第一PSFCH，且待接收的第一PSFCH的数量小于等于N的情况下，第一终端基于全部待接收的第一PSFCH接收波束上报信息。Furthermore, in an embodiment of the present application, when the preset reception order of PSFCH indicates priority reception of the first PSFCH, and the number of first PSFCHs to be received is less than or equal to N, the first terminal receives beam reporting information based on all first PSFCHs to be received.

需要说明是，在本申请的实施例中，如果PSFCH的预设接收顺序指示最先接收第一PSFCH，那么第一终端可以优先接收第一PSFCH。具体地，如果待接收的第一PSFCH的数量小于等于PSFCH 接收数量阈值，即待接收的第一PSFCH的数量小于等于N，那么第一终端可以直接接收全部待接收的第一PSFCH，从而通过待接收的第一PSFCH接收波束上报信息。It should be noted that, in the embodiment of the present application, if the preset reception order of the PSFCH indicates that the first PSFCH is received first, then the first terminal may preferentially receive the first PSFCH. Specifically, if the number of the first PSFCH to be received is less than or equal to the number of the PSFCH The receiving quantity threshold, that is, the number of first PSFCHs to be received is less than or equal to N, then the first terminal can directly receive all first PSFCHs to be received, thereby receiving beam reporting information through the first PSFCH to be received.

示例性的，在一些实施例中，图15是本申请实施例提供的接收第一PSFCH的实现示意图二，如图15所示，第一终端待接收的三种PSFCH的总数为8，第一终端所支持的同时接收PSFCH的最大数量为5，即第一终端能够同时接收的PSFCH数量应为5。此时，如果PSFCH的预设接收顺序指示优先接收第一PSFCH，那么只有在接收全部第一PSFCH之后，才会考虑接收其他类型的PSFCH。由于待接收的第一PSFCH数量为5，只能同时接收全部第一PSFCH，此时，第一终端选择接收全部5个第一PSFCH。Exemplarily, in some embodiments, FIG. 15 is a second schematic diagram of an implementation of receiving the first PSFCH provided by an embodiment of the present application. As shown in FIG. 15 , the total number of three types of PSFCHs to be received by the first terminal is 8, and the maximum number of PSFCHs supported by the first terminal for simultaneous reception is 5, that is, the number of PSFCHs that the first terminal can receive simultaneously should be 5. At this time, if the preset reception order of the PSFCH indicates that the first PSFCH is received first, then only after all the first PSFCHs are received will other types of PSFCHs be considered for reception. Since the number of first PSFCHs to be received is 5, only all the first PSFCHs can be received simultaneously. At this time, the first terminal chooses to receive all 5 first PSFCHs.

进一步地，在本申请的实施例中，在PSFCH的预设接收顺序指示优先接收承载HARQ-ACK信息的PSFCH和承载资源冲突信息的PSFCH，且待接收的PSFCH的数量Q小于等于N的情况下，第一终端基于优先级信息最小的N-Q个待接收的第一PSFCH接收波束上报信息；其中，Q为大于0的整数。Furthermore, in an embodiment of the present application, when the preset reception order of PSFCH indicates priority reception of PSFCH carrying HARQ-ACK information and PSFCH carrying resource conflict information, and the number Q of PSFCHs to be received is less than or equal to N, the first terminal receives beam reporting information based on the N-Q first PSFCHs to be received with the smallest priority information; wherein Q is an integer greater than 0.

需要说明是，在本申请的实施例中，如果PSFCH的预设接收顺序指示最后接收第一PSFCH，那么第一终端可以优先接收第一PSFCH以外的其他类型的待接收PSFCH。具体地，如果第一PSFCH以外的其他类型的待接收PSFCH的数量Q小于等于N，那么第一终端在接收Q个其他类型的待接收PSFCH的同时，还可以选择接收第一优先级信息最小的N-Q个待接收的第一PSFCH，从而通过N-Q个待接收的第一PSFCH接收波束上报信息。It should be noted that, in an embodiment of the present application, if the preset reception order of PSFCH indicates that the first PSFCH is received last, then the first terminal can give priority to receiving other types of PSFCHs to be received other than the first PSFCH. Specifically, if the number Q of other types of PSFCHs to be received other than the first PSFCH is less than or equal to N, then the first terminal can choose to receive N-Q first PSFCHs to be received with the smallest first priority information while receiving Q other types of PSFCHs to be received, thereby receiving beam reporting information through N-Q first PSFCHs to be received.

示例性的，在一些实施例中，图16是本申请实施例提供的接收第一PSFCH的实现示意图三，如图16所示，第一终端待接收的三种PSFCH的总数为8，第一终端所支持的同时接收PSFCH的最大数量为4，即第一终端能够同时接收的PSFCH数量应为4。此时，如果PSFCH的预设接收顺序指示最后接收第一PSFCH，那么会优先选择接收除第一PSFCH外的其他其他类型的待接收PSFCH，如果还允许接收第一PSFCH，那么可以按照优先级信息升序的方法选择第一PSFCH。例如，最后选择接收第一优先级信息(第一优先级数值)为1的第一PSFCH。Exemplarily, in some embodiments, FIG. 16 is a schematic diagram of the implementation of receiving the first PSFCH provided in an embodiment of the present application. As shown in FIG. 16, the total number of three types of PSFCHs to be received by the first terminal is 8, and the maximum number of PSFCHs supported by the first terminal to be received simultaneously is 4, that is, the number of PSFCHs that the first terminal can receive simultaneously should be 4. At this time, if the preset reception order of the PSFCH indicates that the first PSFCH is received last, then other types of PSFCHs to be received other than the first PSFCH will be preferentially selected. If the first PSFCH is still allowed to be received, then the first PSFCH can be selected in ascending order of priority information. For example, the first PSFCH with the first priority information (first priority value) of 1 is selected to be received last.

也就是说，在本申请的实施例中，第一终端在接收PSFCH时，一方面，PSFCH接收数量阈值会对同时接收多个PSFCH的最大数量进行限制，另一方面，PSFCH的预设接收顺序会对接收的不同类型的PSFCH的顺序进行限制。That is to say, in an embodiment of the present application, when the first terminal receives PSFCH, on the one hand, the PSFCH reception number threshold will limit the maximum number of multiple PSFCHs received simultaneously, and on the other hand, the preset reception order of PSFCH will limit the order of receiving different types of PSFCHs.

相应地，在本申请的实施例中，第二终端在发送PSFCH时，需要基于PSFCH发送数量阈值来对同时发送多个PSFCH的最大数量进行限制，也需要基于PSFCH的预设发送顺序对发送的不同类型的PSFCH的顺序进行限制。其中，第二终端可以参考上述第一终端接收PSFCH的原则和方式来进行PSFCH的发送。Accordingly, in an embodiment of the present application, when the second terminal sends PSFCH, it is necessary to limit the maximum number of PSFCHs sent simultaneously based on the PSFCH sending number threshold, and it is also necessary to limit the order of sending different types of PSFCHs based on the preset sending order of PSFCH. The second terminal can refer to the principle and method of receiving PSFCH by the first terminal to send PSFCH.

综上所述，本申请实施例提出的侧行链路的通信方法，通过引入与SL CSI-RS关联的PSFCH的优先级完成上报波束上报信息的传输，其中，PSFCH的优先级信息可以参考SL CSI-RS的优先级信息，也可以参考SCI所指示的优先级信息，还可以参考预先设置的优先级信息。相应地，在引入与SL CSI-RS相关联的PSFCH的优先级的基础上，进一步对PSFCH发送/接收过程进行了相应的优化，完善了终端发送和接收PSFCH的相关机制，从而能够保证波束管理机制的有效性。In summary, the sidelink communication method proposed in the embodiment of the present application completes the transmission of the reporting beam reporting information by introducing the priority of the PSFCH associated with the SL CSI-RS, wherein the priority information of the PSFCH can refer to the priority information of the SL CSI-RS, can refer to the priority information indicated by the SCI, and can refer to the pre-set priority information. Accordingly, on the basis of introducing the priority of the PSFCH associated with the SL CSI-RS, the PSFCH sending/receiving process is further optimized accordingly, and the relevant mechanism of the terminal sending and receiving the PSFCH is improved, so as to ensure the effectiveness of the beam management mechanism.

本申请实施例提出了一种侧行链路的通信方案，第一终端接收第二终端发送的波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第一终端基于第一PSFCH对应的第一优先级信息接收第一PSFCH承载的波束上报信息。也就是说，在本申请的实施例中，针对承载SL CSI-RS对应的波束上报信息的PSFCH，可以引入该PSFCH对应的优先级信息，从而可以利用PSFCH的优先级信息进行波束上报信息的接收或发送。由此可见，本申请实施例通过确定与SL CSI-RS相关联的PSFCH的优先级信息来进一步对PSFCH发送/接收机制进行了相应的优化，完善了终端发送和接收PSFCH的相关机制，从而保证了波束管理机制的有效性，进而提升了通信可靠性。The embodiment of the present application proposes a side link communication scheme, in which a first terminal receives beam reporting information sent by a second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH. That is to say, in the embodiment of the present application, for the PSFCH carrying the beam reporting information corresponding to the SL CSI-RS, the priority information corresponding to the PSFCH can be introduced, so that the priority information of the PSFCH can be used to receive or send the beam reporting information. It can be seen that the embodiment of the present application further optimizes the PSFCH sending/receiving mechanism by determining the priority information of the PSFCH associated with the SL CSI-RS, and improves the relevant mechanism of the terminal sending and receiving the PSFCH, thereby ensuring the effectiveness of the beam management mechanism and improving the communication reliability.

本申请的一实施例提出了一种侧行链路的通信方法，该方法可以应用于第二终端。其中，第二终端可以为侧行终端，第二终端与第一终端可以为不同的侧行终端。An embodiment of the present application provides a sidelink communication method, which can be applied to a second terminal, wherein the second terminal can be a sidelink terminal, and the second terminal and the first terminal can be different sidelink terminals.

需要说明的是，在本申请的实施例中，第二终端可以为侧行系统中的终端，本申请不进行具体限定。例如，第二终端可以为侧行毫米波传输系统中的侧行终端。It should be noted that, in the embodiments of the present application, the second terminal may be a terminal in a sidewalk system, which is not specifically limited in the present application. For example, the second terminal may be a sidewalk terminal in a sidewalk millimeter wave transmission system.

进一步地，在本申请的实施例中，图17是本申请实施例提供的侧行链路的通信方法的实现流程示意图二，如图17所示，侧行链路的通信方法可以包括以下步骤：Further, in an embodiment of the present application, FIG. 17 is a second schematic diagram of a flow chart of an implementation of a sidelink communication method provided in an embodiment of the present application. As shown in FIG. 17 , the sidelink communication method may include the following steps:

步骤201、第二终端向第一终端发送波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第二终端基于第一PSFCH对应的第一优先级信息发送第一PSFCH承载的波束上报信息。 Step 201: The second terminal sends beam reporting information to the first terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

在本申请的实施例中，第二终端可以向第一终端发送波束上报信息。其中，第二终端可以基于第一PSFCH对应的第一优先级信息向第以终端发送第一PSFCH承载的波束上报信息。In an embodiment of the present application, the second terminal may send beam reporting information to the first terminal. The second terminal may send beam reporting information carried by the first PSFCH to the first terminal based on the first priority information corresponding to the first PSFCH.

也就是说，在本申请的实施例中，第一PSFCH承载的信息可能是各种内容的信息，例如，可以承载SL CSI-RS对应的波束上报信息，本申请不进行具体限定。That is to say, in the embodiments of the present application, the information carried by the first PSFCH may be information of various contents, for example, it may carry beam reporting information corresponding to the SL CSI-RS, and the present application does not make specific limitations.

需要说明的是，在本申请的实施例中，第一终端与第二终端可以为不同的侧行终端，本申请不进行具体限定。例如，第一终端可以为侧行毫米波传输系统中的侧行终端。It should be noted that, in the embodiments of the present application, the first terminal and the second terminal may be different sideline terminals, which is not specifically limited in the present application. For example, the first terminal may be a sideline terminal in a sideline millimeter wave transmission system.

进一步地，在本申请的实施例中，第二终端可以先接收第一终端发送的第一信息；其中，第一信息可以用于指示SL CSI-RS的第二优先级信息。Furthermore, in an embodiment of the present application, the second terminal may first receive the first information sent by the first terminal; wherein the first information may be used to indicate the second priority information of the SL CSI-RS.

需要说明的是，在本申请的实施例中，第二终端可以接收第一终端发送的第一信息；其中，第一信息承载于与SL CSI-RS关联的第一信令，第一信令可以包括SCI。It should be noted that, in an embodiment of the present application, the second terminal can receive the first information sent by the first terminal; wherein the first information is carried in the first signaling associated with the SL CSI-RS, and the first signaling may include the SCI.

示例性的，在一些实施例中，承载第一信息的第一信令可以包括第一阶SCI。其中，该第一阶SCI可以用于指示PSSCH的传输资源、预留资源信息、调制编码策略MCS等级、优先级信息(如第二优先级信息)等信息。Exemplarily, in some embodiments, the first signaling carrying the first information may include a first-order SCI. The first-order SCI may be used to indicate the transmission resources, reserved resource information, modulation and coding strategy MCS level, priority information (such as second priority information) and other information.

也就是说，在本申请的实施例中，第二终端可以接收第一终端发送的第一信息，该第一信息承载于第一阶SCI，该第一阶SCI承载于PSCCH。That is to say, in an embodiment of the present application, the second terminal may receive first information sent by the first terminal, where the first information is carried in a first-order SCI, and the first-order SCI is carried in a PSCCH.

需要说明的是，在本申请的实施例中，第二终端可以接收第一终端发送的一个或多个SL CSI-RS，该一个或多个SL CSI-RS与承载第一信息的SCI可以在同一时隙上传输。It should be noted that, in an embodiment of the present application, the second terminal can receive one or more SL CSI-RS sent by the first terminal, and the one or more SL CSI-RS and the SCI carrying the first information can be transmitted in the same time slot.

示例性的，在一些实施例中，在侧行毫米波传输系统中，由于存在不同的波束方向，需要通过指示与波束相关联的参考信号间接地指示相应的波束，参考信号可以是SL CSI-RS，每一个SL CSI-RS可以有对应的索引信息，不同的SL CSI-RS可以对应不同的波束方向。例如，在进行发送波束选择时，第一终端可以使用不同的波束轮询发送不同的SL CSI-RS资源，第二终端分别接收该多个SL CSI-RS，并进行测量，根据测量结果可以选择一个或多个SL CSI-RS资源，并将所选择的SL CSI-RS资源索引信息上报给发送终端，第一终端可以从上报的一个或多个SL CSI-RS资源中选择较优的SL CSI-RS，并将其对应的发送波束选择为最优发送波束。相应地，在进行接收波束选择时，第二终端可以使用所选择的最优发送波束多次发送相关联的SL CSI-RS，第一终端采用不同的接收波束进行轮询接收并测量，根据测量结果第二终端选择较优接收波束作为与该发送波束相对应的接收波束。Exemplarily, in some embodiments, in a side-travel millimeter wave transmission system, due to the existence of different beam directions, it is necessary to indirectly indicate the corresponding beam by indicating a reference signal associated with the beam, and the reference signal may be an SL CSI-RS, and each SL CSI-RS may have corresponding index information, and different SL CSI-RS may correspond to different beam directions. For example, when performing a transmit beam selection, the first terminal may use different beam polling to send different SL CSI-RS resources, and the second terminal may receive the multiple SL CSI-RSs respectively and perform measurements, and one or more SL CSI-RS resources may be selected based on the measurement results, and the selected SL CSI-RS resource index information may be reported to the transmitting terminal, and the first terminal may select a better SL CSI-RS from the reported one or more SL CSI-RS resources, and select its corresponding transmit beam as the optimal transmit beam. Accordingly, when selecting a receiving beam, the second terminal can use the selected optimal transmitting beam to send the associated SL CSI-RS multiple times, and the first terminal uses different receiving beams to perform polling reception and measurement. According to the measurement results, the second terminal selects a better receiving beam as the receiving beam corresponding to the transmitting beam.

需要说明的是，在本申请的实施例中，SL CSI-RS对应的第二优先级信息，可以通过多种方式进行确定。其中，第二优先级信息可以基于应用类型与优先级信息的预设映射关系确定，也可以基于已分配的传输资源关联的优先级信息确定，也可以基于待传输数据的优先级信息确定，也可以基于第二预设数值确定，还可以基于应用类型与优先级信息的预设映射关系，已分配的传输资源关联的优先级信息，待传输数据的优先级信息，第二预设数值中的多种信息进行确定，本申请不进行具体限定。It should be noted that, in the embodiments of the present application, the second priority information corresponding to the SL CSI-RS can be determined in a variety of ways. Among them, the second priority information can be determined based on the preset mapping relationship between the application type and the priority information, can also be determined based on the priority information associated with the allocated transmission resources, can also be determined based on the priority information of the data to be transmitted, can also be determined based on the second preset value, can also be determined based on the preset mapping relationship between the application type and the priority information, the priority information associated with the allocated transmission resources, the priority information of the data to be transmitted, and the second preset value. The present application does not make specific limitations.

示例性的，在一些实施例中，假设应用类型与优先级信息的预设映射关系用于确定波束应用类型对应的一个优先级信息，即波束应用类型与优先级信息之间是一一对应的映射关系，那么，可以确定发送SL CSI-RS的目的和SL CSI-RS优先级信息为一对一的映射关系。应用类型与优先级信息的预设映射关系可以如表3所示：Exemplarily, in some embodiments, assuming that the preset mapping relationship between the application type and the priority information is used to determine a priority information corresponding to the beam application type, that is, there is a one-to-one mapping relationship between the beam application type and the priority information, then it can be The purpose of sending the SL CSI-RS and the SL CSI-RS priority information are determined to be a one-to-one mapping relationship. The preset mapping relationship between the application type and the priority information can be shown in Table 3:

表3
Table 3

基于表3，假设SL CSI-RS对应的波束应用类型为初始波束配对，那么对应的第二优先级信息可以为1，优先级最高，即如果发送SL CSI-RS的目的为初始波束配对，那么该SL CSI-RS的优先级最高。Based on Table 3, assuming that the beam application type corresponding to the SL CSI-RS is initial beam pairing, the corresponding second priority information can be 1, which means the highest priority. That is, if the purpose of sending the SL CSI-RS is initial beam pairing, the SL CSI-RS has the highest priority.

示例性的，在一些实施例中，假设应用类型与优先级信息的预设映射关系用于确定波束应用类型对应的多个优先级信息，即波束应用类型与优先级信息之间是一对多的映射关系，那么，可以确定发送SL CSI-RS的目的和SL CSI-RS优先级信息为一对多的映射关系。应用类型与优先级信息的预设映射关系可以如表4所示：Exemplarily, in some embodiments, assuming that the preset mapping relationship between the application type and the priority information is used to determine the multiple priority information corresponding to the beam application type, that is, the beam application type and the priority information are in a one-to-many mapping relationship, then, it can be determined that the purpose of sending the SL CSI-RS and the SL CSI-RS priority information are in a one-to-many mapping relationship. The preset mapping relationship between the application type and the priority information can be shown in Table 4:

表4
Table 4

基于表4，假设SL CSI-RS对应的波束应用类型为初始波束配对，那么对应的第二优先级信息可以为1，也可以为2，即如果发送SL CSI-RS的目的为初始波束配对，那么该SL CSI-RS的第二优先级信息可以在1或2中进行选择。其中，在多个优先级中的选择方式为均匀随机选择，或者取决于终端实现。Based on Table 4, assuming that the beam application type corresponding to the SL CSI-RS is initial beam pairing, the corresponding second priority information can be 1 or 2, that is, if the purpose of sending the SL CSI-RS is initial beam pairing, the second priority information of the SL CSI-RS can be selected from 1 or 2. Among them, the selection method among multiple priorities is uniform random selection, or depends on the terminal implementation.

也就是说，在本申请的实施例中，可以根据逻辑信道中待传输数据确定SL CSI-RS的第二优先级信息。其中，当第一终端需要发送SL CSI-RS或第一终端MAC层为SL CSI-RS传输触发资源选择(或重选)时，一种情况包括第一终端已经为逻辑信道中待传输数据触发资源选择，并分配SL grant(即已分配的传输资源)，且上述待传输的SL CSI-RS可以与数据一起通过该SL grant同时传输，则该SL CSI-RS的优先级信息等于该SL grant关联的优先级信息。另一种情况包括第一终端已经为逻辑信道中待传输数据触发资源选择，并分配SL grant(即已分配的传输资源)，且上述待传输的SL CSI-RS不可以与数据一起通过该SL grant同时传输，则该SL CSI-RS优先级信息等于逻辑信道中待传输数据中最小的优先级信息(即最高优先级)。再一种情况包括第一终端没有为逻辑信道中待传输数据触发资源选择，即不存在已分配的SL grant，则该SL CSI-RS的优先级信息等于终端逻辑信道中待传输数据中的最小优先级信息(即最高优先级)。That is, in the embodiment of the present application, the second priority of the SL CSI-RS can be determined according to the data to be transmitted in the logical channel. Level information. Among them, when the first terminal needs to send SL CSI-RS or the first terminal MAC layer triggers resource selection (or reselection) for SL CSI-RS transmission, one situation includes that the first terminal has triggered resource selection for data to be transmitted in the logical channel, and allocated SL grant (that is, allocated transmission resources), and the above-mentioned SL CSI-RS to be transmitted can be transmitted simultaneously with the data through the SL grant, then the priority information of the SL CSI-RS is equal to the priority information associated with the SL grant. Another situation includes that the first terminal has triggered resource selection for data to be transmitted in the logical channel, and allocated SL grant (that is, allocated transmission resources), and the above-mentioned SL CSI-RS to be transmitted cannot be transmitted simultaneously with the data through the SL grant, then the SL CSI-RS priority information is equal to the minimum priority information (that is, the highest priority) among the data to be transmitted in the logical channel. Another situation includes that the first terminal has not triggered resource selection for data to be transmitted in the logical channel, that is, there is no allocated SL grant, then the priority information of the SL CSI-RS is equal to the minimum priority information (that is, the highest priority) among the data to be transmitted in the terminal logical channel.

可以理解的是，在本申请的实施例中，如果第二终端在一个时隙内接搜多个SL CSI-RS，例如，多个SL CSI-RS以TDM的方式占用了一个时隙内的多个OFDM符号，如图9中CSI-RS#0，CSI-RS#1，CSI-RS#2…，该多个SL CSI-RS的优先级应是相同的，即多个SL CSI-RS对应有相同的第二优先级信息。It can be understood that in an embodiment of the present application, if the second terminal receives multiple SL CSI-RS in a time slot, for example, multiple SL CSI-RS occupy multiple OFDM symbols in a time slot in a TDM manner, such as CSI-RS#0, CSI-RS#1, CSI-RS#2... in Figure 9, the priorities of the multiple SL CSI-RS should be the same, that is, the multiple SL CSI-RS correspond to the same second priority information.

可以理解的是，在本申请的实施例中，在根据应用类型与优先级信息的预设映射关系初步确定与SL CSI-RS相对应的优先级信息之后，如果SL CSI-RS和SL数据在同一时隙进行传输，那么PSCCH中承载的第一阶SCI中“priority”域所指示的值，可以根据SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息进行确定。其中，可以比较SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息的大小，然后根据两者中较小的优先级信息确定第二优先级信息，即SCI中“priority”域所指示的第二优先级信息可以为SL CSI-RS的波束应用类型对应的优先级信息和SL数据的优先级信息中的最小值。It can be understood that in the embodiment of the present application, after the priority information corresponding to the SL CSI-RS is preliminarily determined according to the preset mapping relationship between the application type and the priority information, if the SL CSI-RS and the SL data are transmitted in the same time slot, then the value indicated by the "priority" field in the first-order SCI carried in the PSCCH can be determined according to the priority information corresponding to the beam application type of the SL CSI-RS and the priority information of the SL data. The size of the priority information of the SL CSI-RS and the priority information of the SL data is measured, and the second priority information is determined according to the smaller priority information of the two. That is, the second priority information indicated by the "priority" field in the SCI can be the minimum value of the priority information corresponding to the beam application type of the SL CSI-RS and the priority information of the SL data.

示例性的，在一些实施例中，如图12所示，一种可能的关联关系为每一个SL CSI-RS关联一个第一PSFCH。Exemplarily, in some embodiments, as shown in FIG12 , a possible association relationship is that each SL CSI-RS is associated with a first PSFCH.

可以理解的是，在本申请的实施例中，第二终端每测量一个SL CSI-RS后，可以基于第一PSFCH的第一优先级信息决定是否在其所关联的PSFCH occasion(PSFCH传输机会)上发送第一PSFCH，该第一PSFCH的第一优先级信息等于相关联的SL CSI-RS的第二优先级信息。相应地，第一终端可以根据与第一PSFCH相关联的SL CSI-RS的第二优先级信息确定对应的第一优先级信息，从而进一步决定是否在其所关联的PSFCH occasion上接收第一PSFCH。It can be understood that in the embodiment of the present application, after the second terminal measures each SL CSI-RS, it can decide whether to send the first PSFCH on its associated PSFCH occasion (PSFCH transmission opportunity) based on the first priority information of the first PSFCH, and the first priority information of the first PSFCH is equal to the second priority information of the associated SL CSI-RS. Accordingly, the first terminal can determine the corresponding first priority information based on the second priority information of the SL CSI-RS associated with the first PSFCH, thereby further deciding whether to receive the first PSFCH on its associated PSFCH occasion.

示例性的，在一些实施例中，如图13所示，一种可能的关联关系为多个SL CSI-RS关联一个第一PSFCH。Exemplarily, in some embodiments, as shown in FIG13 , a possible association relationship is that multiple SL CSI-RS are associated with one first PSFCH.

可以理解的是，在本申请的实施例中，第一PSFCH可以为承载一个或多个波束上报信息的PSFCH，第一PSFCH的第一优先级信息可以通过与第一PSFCH关联的SL CSI-RS的第二优先级信息确定。It can be understood that, in the embodiment of the present application, the first PSFCH may be a PSFCH carrying one or more beam reporting information, and the first priority information of the first PSFCH may be transmitted through the second priority information of the SL CSI-RS associated with the first PSFCH. Information confirmed.

示例性的，在一些实施例中，优先级参考值的取值为大于等于1且小于等于8的整数。Exemplarily, in some embodiments, the priority reference value is an integer greater than or equal to 1 and less than or equal to 8.

也就是说，在本申请的实施例中，在根据SCI所指示的一个优先级参考值确定第一PSFCH的第一优先级信息时，如果一个第一PSFCH关联一个SCI，即第一PSFCH与SCI为一对一的映射关系，那么该第一PSFCH的第一优先级信息等于上述相关联的SCI所指示的一个优先级参考值。That is to say, in an embodiment of the present application, when the first priority information of the first PSFCH is determined according to a priority reference value indicated by the SCI, if a first PSFCH is associated with an SCI, that is, the first PSFCH and the SCI are mapped one to one, then the first priority information of the first PSFCH is equal to a priority reference value indicated by the above-mentioned associated SCI.

也就是说，在本申请的实例中，第一PSFCH的第一优先级信息可以为默认的整数值，如第一预设数值，其中，第一预设数值可以由标准预定义或约定。 That is to say, in the example of the present application, the first priority information of the first PSFCH may be a default integer value, such as a first preset value, wherein the first preset value may be predefined or agreed upon by a standard.

进一步地，在本申请的实施例中，第二终端在基于第一PSFCH对应的第一优先级发送第一PSFCH承载的波束上报信息时，第二终端可以基于第一优先级信息和PSFCH状态，发送第一PSFCH承载的波束上报信息。Further, in an embodiment of the present application, when the second terminal sends beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, the second terminal can send beam reporting information carried by the first PSFCH based on the first priority information and the PSFCH status.

也就是说，在本申请的实施例中，第二终端在发送波束上报信息时，可以选择基于第一PSFCH的第一优先级信息和PSFCH状态，发送第一PSFCH承载的波束上报信息。That is to say, in an embodiment of the present application, when sending beam reporting information, the second terminal can choose to send the beam reporting information carried by the first PSFCH based on the first priority information and PSFCH status of the first PSFCH.

需要说明的是，在本申请的实施例中，在SL系统中，在资源池中的一个PSFCH occasion上可能存在多种不同类型的PSFCH需要同时发送/接收，其中，一个PSFCH occasion上至少可以存在以下一种或多种类型的PSFCH：承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH。It should be noted that in an embodiment of the present application, in the SL system, there may be multiple different types of PSFCHs that need to be sent/received simultaneously on a PSFCH occasion in the resource pool, wherein at least one or more of the following types of PSFCHs may exist on a PSFCH occasion: PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and the first PSFCH.

示例性的，在一些实施例中，如果没有承载HARQ-ACK信息的PSFCH，但存在承载冲突信息的PSFCH，则根据承载冲突信息的PSFCH集合中所关联的优先级信息最小的PSFCH对应的状态 PSFCH状态为发送状态或接收状态。Exemplarily, in some embodiments, if there is no PSFCH carrying HARQ-ACK information, but there is a PSFCH carrying conflicting information, then the state corresponding to the PSFCH with the smallest priority information associated with the PSFCH set carrying the conflicting information is determined. The PSFCH state is either a sending state or a receiving state.

相应地，在本申请的实施例中，第二终端在发送第一PSFCH承载的波束上报信息时，可以选择先根据PSFCH的预设处理顺序和第一PSFCH集合确定PSFCH状态，然后根据第一PSFCH的第一优先级信息和PSFCH状态，发送第一PSFCH承载的波束上报信息。Accordingly, in an embodiment of the present application, when the second terminal sends the beam reporting information carried by the first PSFCH, it can choose to first determine the PSFCH state according to the preset processing order of the PSFCH and the first PSFCH set, and then send the beam reporting information carried by the first PSFCH according to the first priority information of the first PSFCH and the PSFCH state.

也就是说，在本申请的实施例中，如果PSFCH的预设处理顺序指示最先处理第一PSFCH，那么只有当第一PSFCH集合中最小的第一优先级信息对应的第一PSFCH为待发送的第一PSFCH时，可以确定PSFCH状态为发送状态，此时，第二终端在该PSFCH occasion可以发送第一PSFCH。That is to say, in an embodiment of the present application, if the preset processing order of PSFCH indicates that the first PSFCH is processed first, then only when the first PSFCH corresponding to the smallest first priority information in the first PSFCH set is the first PSFCH to be sent, it can be determined that the PSFCH state is the sending state. At this time, the second terminal can send the first PSFCH at this PSFCH occasion.

示例性的，在一些实施例中，如果第一PSFCH的优先度最高，若存在第一PSFCH的发送或接收，可以优先考虑处理第一PSFCH。其中，如果存在待发送和/或待接收的第一PSFCH，可以确定第一优先级信息集合和/或第二优先级信息集合，其中，第一优先级信息集合关联于待发送的第一PSFCH的集合，第二优先级信息集合关联于待接收的第一PSFCH的集合，可以根据第一优先级信息集合和/或第二优先级信息集合中最小的优先级信息所对应的第一PSFCH确定发送PSFCH或者接收PSFCH。具体地，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the first PSFCH has the highest priority, if there is a first PSFCH to be sent or received, the first PSFCH can be processed with priority. If there is a first PSFCH to be sent and/or to be received, a first priority information set and/or a second priority information set can be determined, wherein the first priority information set is associated with a set of first PSFCHs to be sent, and the second priority information set is associated with a set of first PSFCHs to be received. The sending of PSFCH or the receiving of PSFCH can be determined based on the first PSFCH corresponding to the smallest priority information in the first priority information set and/or the second priority information set. Specifically, if the above-mentioned first PSFCH is a PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs at this PSFCH occasion; if the above-mentioned first PSFCH is a PSFCH to be received by the terminal, the terminal receives one or more PSFCHs at this PSFCH occasion.

也就是说，在本申请的实施例中，如果仅存在第一PSFCH，那么只有当第一PSFCH集合中最小的第一优先级信息对应的第一PSFCH为待发送的第一PSFCH时，可以确定PSFCH状态为发送状态，此时，第二终端在该PSFCH occasion可以发送第一PSFCH。That is to say, in an embodiment of the present application, if only the first PSFCH exists, then only when the first PSFCH corresponding to the smallest first priority information in the first PSFCH set is the first PSFCH to be sent, can the PSFCH state be determined to be the sending state. At this time, the second terminal can send the first PSFCH at this PSFCH occasion.

示例性的，在一些实施例中，如果第一PSFCH的优先度最低，那么只有在不存在其他类型的PSFCH时，会根据第一PSFCH的第一优先级信息确定PSFCH状态。其中，若存在第一PSFCH的发送或接收，可以优先考虑处理第一PSFCH。其中，如果存在待发送和/或待接收的第一PSFCH，可以确定第一优先级信息集合和/或第二优先级信息集合，其中，第一优先级信息集合关联于待发送的第一PSFCH的集合，第二优先级信息集合关联于待接收的第一PSFCH的集合，可以根据第一优先级信息集合和/或第二优先级信息集合中最小的优先级信息所对应的第一PSFCH确定发送PSFCH或者接收PSFCH。具体地，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion 接收一个或多个PSFCH。Exemplarily, in some embodiments, if the first PSFCH has the lowest priority, then the PSFCH state will be determined according to the first priority information of the first PSFCH only when there is no other type of PSFCH. Among them, if there is a transmission or reception of the first PSFCH, the first PSFCH can be processed with priority. Among them, if there is a first PSFCH to be sent and/or to be received, a first priority information set and/or a second priority information set can be determined, wherein the first priority information set is associated with the set of first PSFCHs to be sent, and the second priority information set is associated with the set of first PSFCHs to be received. The sending or receiving of PSFCH can be determined according to the first PSFCH corresponding to the smallest priority information in the first priority information set and/or the second priority information set. Specifically, if the above-mentioned first PSFCH is a PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs on this PSFCH occasion; if the above-mentioned first PSFCH is a PSFCH to be received by the terminal, the terminal sends one or more PSFCHs on this PSFCH occasion Receive one or more PSFCHs.

进一步地，在本申请的实施例中，第二终端在基于第一PSFCH对应的第一优先级发送第一PSFCH承载的波束上报信息时，第二终端可以基于第一优先级信息，PSFCH的预设发送顺序以及PSFCH发送数量阈值中的一种或多种发送第一PSFCH承载的波束上报信息。Furthermore, in an embodiment of the present application, when the second terminal sends beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, the second terminal may send beam reporting information carried by the first PSFCH based on one or more of the first priority information, the preset sending order of the PSFCH, and the PSFCH sending quantity threshold.

也就是说，在本申请的实施例中，第二终端在发送波束上报信息时，可以参考以下信息中的一种或多种信息：第一PSFCH的第一优先级信息，PSFCH的预设发送顺序以及PSFCH发送数量阈值。That is to say, in an embodiment of the present application, when sending beam reporting information, the second terminal can refer to one or more of the following information: the first priority information of the first PSFCH, the preset sending order of the PSFCH, and the PSFCH sending quantity threshold.

需要说明的是，在本申请的实施例中，PSFCH发送数量阈值表征SL CSI-RS对应的PSFCH传输机会同时发送PSFCH的上限数量M，M为大于0的整数。It should be noted that, in the embodiment of the present application, the PSFCH transmission number threshold represents the upper limit number M of PSFCHs that can be simultaneously transmitted by the PSFCH transmission opportunities corresponding to the SL CSI-RS, where M is an integer greater than 0.

可以理解的是，在本申请的实施例中，PSFCH发送数量阈值M与PSFCH接收数量阈值N可以相同，也可以不同，本申请实施例不进行具体限定。It can be understood that in the embodiments of the present application, the PSFCH sending quantity threshold M and the PSFCH receiving quantity threshold N may be the same or different, and the embodiments of the present application do not specifically limit this.

需要说明的是，在本申请的实施例中，PSFCH的预设发送顺序可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的发送顺序。It should be noted that, in an embodiment of the present application, the preset sending order of PSFCH may indicate the sending order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH.

示例性的，在一些实施例中，PSFCH的预设发送顺序可以指示最先发送第一PSFCH，其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，优先发送第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，优先发送第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，优先发送第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，发送第一PSFCH。Exemplarily, in some embodiments, the preset sending order of PSFCH may indicate that the first PSFCH is sent first, which specifically includes: one situation is that there are PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and the first PSFCH at the same time, and the first PSFCH is sent first; another situation is that there are PSFCH carrying HARQ-ACK information and the first PSFCH at the same time, and the first PSFCH is sent first; another situation is that there are PSFCH carrying resource conflict information and the first PSFCH at the same time, and the first PSFCH is sent first; the processing order between them; another situation is that only the first PSFCH exists, and the first PSFCH is sent.

示例性的，在一些实施例中，PSFCH的预设发送顺序可以指示最后发送第一PSFCH，其中，具体包括：一种情况是同时存在承载HARQ-ACK信息的PSFCH，承载资源冲突信息的PSFCH，第一PSFCH，最后发送第一PSFCH；另一种情况是同时存在承载HARQ-ACK信息的PSFCH，第一PSFCH，最后发送第一PSFCH；再一种情况是同时存在承载资源冲突信息的PSFCH，第一PSFCH，最后发送第一PSFCH；之间的处理顺序；又一种情况是仅存在第一PSFCH，发送第一PSFCH。Exemplarily, in some embodiments, the preset sending order of PSFCH may indicate that the first PSFCH is sent last, which specifically includes: one situation is that there are PSFCH carrying HARQ-ACK information, PSFCH carrying resource conflict information, and first PSFCH at the same time, and the first PSFCH is sent last; another situation is that there are PSFCH carrying HARQ-ACK information and first PSFCH at the same time, and the first PSFCH is sent last; another situation is that there are PSFCH carrying resource conflict information and first PSFCH at the same time, and the first PSFCH is sent last; the processing order in between; another situation is that only the first PSFCH exists, and the first PSFCH is sent.

需要说明的是，在本申请的实施例中，PSFCH的预设发送顺序还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种发送顺序，本申请不进行具体限定。It should be noted that in an embodiment of the present application, the preset sending order of PSFCH can also indicate any sending order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make specific limitations.

进一步地，在本申请的实施例中，在确定PSFCH状态之后，如果PSFCH状态为发送状态，那么可以选择在SL CSI-RS对应的PSFCH传输机会(PSFCH occasion)发送PSFCH。具体地，第二终端可以按照第一优先级信息，PSFCH的预设发送顺序以及PSFCH发送数量阈值中的一种或多种发送承载波束上报信息的第一PSFCH。Further, in an embodiment of the present application, after determining the PSFCH state, if the PSFCH state is a sending state, then the PSFCH can be selected to be sent in a PSFCH transmission opportunity (PSFCH occasion) corresponding to the SL CSI-RS. Specifically, the second terminal can send the first PSFCH carrying the beam reporting information according to one or more of the first priority information, the preset sending order of the PSFCH, and the PSFCH sending quantity threshold.

可以理解的是，在本申请的实施例中，由于第二终端同时发送多个PSFCH的最大数量受限，若超过一定的数量限制，第二终端无法完成所有待发送的PSFCH发送处理，只能选择发送其中部分PSFCH。It can be understood that in the embodiments of the present application, since the maximum number of PSFCHs that the second terminal can send simultaneously is limited, if a certain number limit is exceeded, the second terminal cannot complete the sending processing of all PSFCHs to be sent and can only choose to send some of the PSFCHs.

示例性的，在一些实施例中，第二终端待发送的PSFCH个数为N_{sch，Tx，PSFCH}，第二终端支持同时发送PSFCH的最大数量(PSFCH发送数量阈值M)为N_max，PSFCH，第二终端最终传输的PSFCH数量为N_Tx，PSFCH，若N_{sch，Tx，PSFCH}>N_max，PSFCH，则N_Tx，PSFCH＝N_max，PSFCH；若N_{sch，Tx，PSFCH}≤N_Max，PSFCH，则N_Tx，PSFCH＝N_{sch，Tx，PSFCH}。Exemplarily, in some embodiments, the number of PSFCHs to be sent by the second terminal is N _sch,Tx,PSFCH , the maximum number of PSFCHs supported for simultaneous transmission by the second terminal (PSFCH transmission number threshold M) is N _max,PSFCH , and the number of PSFCHs finally transmitted by the second terminal is N _Tx,PSFCH . If N _sch,Tx,PSFCH >N _max,PSFCH , then N _Tx,PSFCH ＝N _max,PSFCH ; if N _sch,Tx,PSFCH ≤N _Max,PSFCH , then N _Tx,PSFCH ＝N _sch,Tx,PSFCH .

可以理解的是，在本申请的实施例中，由于第二终端同时发送多个PSFCH的最大功率受限，若超过一定的功率限制，第二终端无法完成所有待发送的PSFCH发送处理，只能选择发送其中部分 PSFCH。It is understandable that in the embodiment of the present application, since the maximum power of the second terminal to send multiple PSFCHs simultaneously is limited, if a certain power limit is exceeded, the second terminal cannot complete the sending process of all PSFCHs to be sent, and can only choose to send some of them. PSFCH.

可以理解的是，在本申请的实施例中，由于一个PSFCH occasion上可以存在包括承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH等一种或多种类型的PSFCH，因此，还需要根据PSFCH的预设发送顺序来进一步对第二终端发送的PSFCH进行限制。It can be understood that in the embodiments of the present application, since one PSFCH occasion may contain one or more types of PSFCHs including a PSFCH carrying HARQ-ACK information, and/or a PSFCH carrying resource conflict information, and/or a first PSFCH, it is necessary to further restrict the PSFCH sent by the second terminal according to the preset sending order of the PSFCH.

也就是说，在本申请的实施例中，考虑到可能存在多种类型的待发送的PSFCH，以及同时发送多个PSFCH的最大能力(包括数量限制和功率限制)，在最终所能发送的N_Tx，PSFCH个PSFCH中，第二终端可以基于第一优先级信息，PSFCH的预设发送顺序以及PSFCH发送数量阈值中的一种或多种发送第一PSFCH，同时，在发送PSFCH的过程中，可能还会受到预设功率阈值的限制。That is to say, in an embodiment of the present application, taking into account that there may be multiple types of PSFCHs to be sent, and the maximum capacity of sending multiple PSFCHs at the same time (including quantity limitation and power limitation), among the N _{Tx, PSFCH} PSFCHs that can be finally sent, the second terminal can send the first PSFCH based on one or more of the first priority information, the preset sending order of PSFCH and the PSFCH sending quantity threshold. At the same time, in the process of sending PSFCH, it may also be limited by the preset power threshold.

进一步地，在本申请的实施例中，第二终端可以基于优先级信息最小的K个所述待发送的第一PSFCH发送所述波束上报信息；其中，K为大于0且小于或等于M的整数。Further, in an embodiment of the present application, the second terminal may send the beam reporting information based on the K first PSFCHs to be sent with the smallest priority information; wherein K is an integer greater than 0 and less than or equal to M.

可以理解的是，在本申请的实施例中，除了PSFCH发送数量阈值的限制以外，PSFCH发送数量可能还受到功率控制机制的影响，即在PSFCH发送数量阈值M和预设功率阈值的限制下，第二终端最终可以同时发送的PSFCH数量可能是小于PSFCH发送数量阈值M的。It can be understood that in the embodiments of the present application, in addition to the limitation of the PSFCH transmission number threshold, the PSFCH transmission number may also be affected by the power control mechanism, that is, under the limitation of the PSFCH transmission number threshold M and the preset power threshold, the number of PSFCHs that the second terminal can ultimately send simultaneously may be less than the PSFCH transmission number threshold M.

进一步地，在本申请的实施例中，在PSFCH的预设发送顺序指示最先发送第一PSFCH，且待发送的第一PSFCH的数量大于M的情况下，第二终端基于优先级信息最小的K个待发送的第一PSFCH发送波束上报信息。Furthermore, in an embodiment of the present application, when the preset sending order of PSFCH indicates that the first PSFCH is sent first, and the number of first PSFCHs to be sent is greater than M, the second terminal sends beam reporting information based on the K first PSFCHs to be sent with the smallest priority information.

需要说明是，在本申请的实施例中，如果PSFCH的预设发送顺序指示最先发送第一PSFCH，那么第二终端可以优先发送第一PSFCH。具体地，如果待发送的第一PSFCH的数量超过PSFCH发送数量阈值，即待发送的第一PSFCH的数量大于M，那么第二终端可以优先发送第一优先级信息最小的K个第一PSFCH，从而通过K个待发送的第一PSFCH发送波束上报信息。其中，考虑到功率控制机制的影响，最终发送的第一PSFCH的数量K可能小于等于PSFCH发送数量阈值M。It should be noted that, in an embodiment of the present application, if the preset transmission order of the PSFCH indicates that the first PSFCH is to be sent first, then the second terminal may give priority to sending the first PSFCH. Specifically, if the number of first PSFCHs to be sent exceeds the PSFCH transmission number threshold, that is, the number of first PSFCHs to be sent is greater than M, then the second terminal may give priority to sending the K first PSFCHs with the smallest first priority information, thereby sending beam reporting information through the K first PSFCHs to be sent. Among them, considering the influence of the power control mechanism, the number K of the first PSFCHs finally sent may be less than or equal to the PSFCH transmission number threshold M.

示例性的，在一些实施例中，图18是本申请实施例提供的发送第一PSFCH的实现示意图一，如图18所示，第二终端待发送的三种PSFCH的总数为8，第二终端所支持的同时发送PSFCH的最大数量为4，即第二终端能够同时发送的PSFCH数量应为4。此时，如果PSFCH的预设发送顺序指示优先发送第一PSFCH，那么只有在发送全部第一PSFCH之后，才会考虑发送其他类型的PSFCH。由于待发送的第一PSFCH数量为5，无法发送全部第一PSFCH，此时，按照优先级信息(优先级数值)升序的方式选择待发送的第一PSFCH，同时，由于受到预设功率阈值的限制，最后所能发送的第一PSFCH为第一优先级信息(第一优先级数值)为1，3，4的三个第一PSFCH。Exemplarily, in some embodiments, FIG. 18 is a schematic diagram of the implementation of sending the first PSFCH provided by an embodiment of the present application. As shown in FIG. 18, the total number of three types of PSFCHs to be sent by the second terminal is 8, and the maximum number of PSFCHs supported by the second terminal to be sent simultaneously is 4, that is, the number of PSFCHs that the second terminal can send simultaneously should be 4. At this time, if the preset transmission order of the PSFCH indicates that the first PSFCH is sent first, then only after all the first PSFCHs are sent, will other types of PSFCHs be considered for sending. Since the number of first PSFCHs to be sent is 5, it is impossible to send all the first PSFCHs. At this time, the first PSFCHs to be sent are selected in ascending order of priority information (priority value). At the same time, due to the limitation of the preset power threshold, the first PSFCHs that can be sent at the end are the three first PSFCHs whose first priority information (first priority value) is 1, 3, and 4.

进一步地，在本申请的实施例中，在PSFCH的预设发送顺序指示优先发送第一PSFCH，且待发送的第一PSFCH的数量小于等于M的情况下，如果不考虑预设功率阈值的限制，第二终端可以基于全部待发送的第一PSFCH发送波束上报信息。Furthermore, in an embodiment of the present application, when the preset sending order of PSFCH indicates that the first PSFCH is sent first, and the number of first PSFCHs to be sent is less than or equal to M, if the limitation of the preset power threshold is not considered, the second terminal can send beam reporting information based on all first PSFCHs to be sent.

需要说明是，在本申请的实施例中，如果PSFCH的预设发送顺序指示最先发送第一PSFCH，那么第二终端可以优先发送第一PSFCH。具体地，如果待发送的第一PSFCH的数量小于等于PSFCH发送数量阈值，即待发送的第一PSFCH的数量小于等于M，那么在不考虑预设功率阈值的限制的情况下，第二终端可以直接发送全部待发送的第一PSFCH，从而通过待发送的第一PSFCH发送波束上报信息。It should be noted that, in an embodiment of the present application, if the preset transmission order of the PSFCH indicates that the first PSFCH is to be transmitted first, then the second terminal may give priority to transmitting the first PSFCH. Specifically, if the number of first PSFCHs to be transmitted is less than or equal to the PSFCH transmission number threshold, that is, the number of first PSFCHs to be transmitted is less than or equal to M, then without considering the limitation of the preset power threshold, the second terminal may directly transmit all first PSFCHs to be transmitted, thereby transmitting the beam reporting information through the first PSFCH to be transmitted.

示例性的，在一些实施例中，图19是本申请实施例提供的发送第一PSFCH的实现示意图二，如图19所示，第二终端待发送的三种PSFCH的总数为8，第二终端所支持的同时发送PSFCH的最大数量为4，即第二终端能够同时发送的PSFCH数量应为4。此时，如果PSFCH的预设发送顺序指示优先发送第一PSFCH，那么只有在发送全部第一PSFCH之后，才会考虑发送其他类型的PSFCH。由于待发送的第一PSFCH数量为4，只能同时发送全部第一PSFCH，此时，在不考虑预设功率阈值的限制的情况下，第二终端选择发送全部4个第一PSFCH。Exemplarily, in some embodiments, FIG. 19 is a second schematic diagram of the implementation of sending the first PSFCH provided by an embodiment of the present application. As shown in FIG. 19 , the total number of three types of PSFCHs to be sent by the second terminal is 8, and the maximum number of PSFCHs supported by the second terminal to be sent simultaneously is 4, that is, the number of PSFCHs that the second terminal can send simultaneously should be 4. At this time, if the preset transmission order of the PSFCH indicates that the first PSFCH is sent first, then only after all the first PSFCHs are sent, will other types of PSFCHs be considered for sending. Since the number of first PSFCHs to be sent is 4, all the first PSFCHs can only be sent simultaneously. At this time, without considering the limitation of the preset power threshold, the second terminal chooses to send all 4 first PSFCHs.

进一步地，在本申请的实施例中，在PSFCH的预设发送顺序指示优先发送承载HARQ-ACK信息的PSFCH和承载资源冲突信息的PSFCH，且待发送的PSFCH的数量Q小于等于M，不考虑预设功率阈值的限制的情况下，第二终端基于优先级信息最小的M-Q个待发送的第一PSFCH发送波束上报信息；其中，Q为大于0的整数。Furthermore, in an embodiment of the present application, when the preset sending order of PSFCH indicates that PSFCH carrying HARQ-ACK information and PSFCH carrying resource conflict information are sent first, and the number Q of PSFCHs to be sent is less than or equal to M, without considering the limitation of the preset power threshold, the second terminal sends beam reporting information based on the M-Q first PSFCHs to be sent with the smallest priority information; wherein Q is an integer greater than 0.

需要说明是，在本申请的实施例中，如果PSFCH的预设发送顺序指示最后发送第一PSFCH，那么第二终端可以优先发送第一PSFCH以外的其他类型的待发送PSFCH。具体地，如果第一PSFCH以外的其他类型的待发送PSFCH的数量Q小于等于M，那么第二终端在发送Q个其他类型的待发送PSFCH的同时，还可以选择发送第一优先级信息最小的M-Q个待发送的第一PSFCH，从而通过 M-Q个待发送的第一PSFCH发送波束上报信息。It should be noted that, in the embodiment of the present application, if the preset transmission order of PSFCH indicates that the first PSFCH is to be transmitted last, then the second terminal may give priority to transmitting other types of PSFCHs to be transmitted other than the first PSFCH. Specifically, if the number Q of other types of PSFCHs to be transmitted other than the first PSFCH is less than or equal to M, then the second terminal may also choose to transmit MQ first PSFCHs to be transmitted with the smallest first priority information while transmitting Q other types of PSFCHs to be transmitted, thereby The first PSFCH transmission beam reporting information of MQ to be sent.

示例性的，在一些实施例中，图20是本申请实施例提供的发送第一PSFCH的实现示意图三，如图20所示，第二终端待发送的三种PSFCH的总数为8，第二终端所支持的同时发送PSFCH的最大数量为4，即第二终端能够同时发送的PSFCH数量应为4。此时，如果PSFCH的预设发送顺序指示最后发送第一PSFCH，那么会优先选择发送除第一PSFCH外的其他其他类型的待发送PSFCH，如果还允许发送第一PSFCH，那么可以按照优先级信息升序的方法选择第一PSFCH。例如，最后选择发送第一优先级信息(第一优先级数值)为1的第一PSFCH。Exemplarily, in some embodiments, FIG. 20 is a schematic diagram of the implementation of sending the first PSFCH provided in an embodiment of the present application. As shown in FIG. 20, the total number of three types of PSFCHs to be sent by the second terminal is 8, and the maximum number of PSFCHs supported by the second terminal to be sent simultaneously is 4, that is, the number of PSFCHs that the second terminal can send simultaneously should be 4. At this time, if the preset sending order of PSFCH indicates that the first PSFCH is sent last, then other types of PSFCHs to be sent except the first PSFCH will be preferentially selected. If the first PSFCH is still allowed to be sent, then the first PSFCH can be selected in ascending order of priority information. For example, the first PSFCH with the first priority information (first priority value) of 1 is selected to be sent last.

也就是说，在本申请的实施例中，第二终端在发送PSFCH时，需要基于PSFCH发送数量阈值和/或预设功率阈值来对同时发送多个PSFCH的最大数量进行限制，也需要基于PSFCH的预设发送顺序对发送的不同类型的PSFCH的顺序进行限制。That is to say, in an embodiment of the present application, when the second terminal sends PSFCH, it is necessary to limit the maximum number of multiple PSFCHs sent simultaneously based on the PSFCH sending quantity threshold and/or the preset power threshold, and it is also necessary to limit the order of sending different types of PSFCHs based on the preset sending order of PSFCH.

相应地，在本申请的实施例中，第一终端在接收PSFCH时，一方面，PSFCH接收数量阈值会对同时接收多个PSFCH的最大数量进行限制，另一方面，PSFCH的预设接收顺序会对接收的不同类型的PSFCH的顺序进行限制。其中，第一终端可以参考上述第二终端发送PSFCH的原则和方式来进行PSFCH的接收。Accordingly, in an embodiment of the present application, when the first terminal receives PSFCH, on the one hand, the PSFCH reception number threshold will limit the maximum number of multiple PSFCHs received simultaneously, and on the other hand, the preset reception order of PSFCH will limit the order of different types of PSFCHs received. The first terminal can refer to the principle and method of sending PSFCH by the second terminal to receive PSFCH.

本申请实施例提出了一种侧行链路的通信方案，第二终端向第一终端发送波束上报信息；其中，波束上报信息包括SL CSI-RS对应的波束上报信息，第二终端基于第一PSFCH对应的第一优先级信息发送第一PSFCH承载的波束上报信息。相应地，第一终端基于第一PSFCH对应的第一优先级信息接收第二终端发送的第一PSFCH承载的波束上报信息。也就是说，在本申请的实施例中，针对承载SL CSI-RS对应的波束上报信息的PSFCH，可以引入该PSFCH对应的优先级信息，从而可以利用PSFCH的优先级信息进行波束上报信息的接收或发送。由此可见，本申请实施例通过确定与SL CSI-RS相关联的PSFCH的优先级信息来进一步对PSFCH发送/接收机制进行了相应的优化，完善了终端发送和接收PSFCH的相关机制，从而保证了波束管理机制的有效性，进而提升了通信可靠性。The embodiment of the present application proposes a side link communication scheme, in which the second terminal sends beam reporting information to the first terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH. Correspondingly, the first terminal receives the beam reporting information carried by the first PSFCH sent by the second terminal based on the first priority information corresponding to the first PSFCH. That is to say, in the embodiment of the present application, for the PSFCH carrying the beam reporting information corresponding to the SL CSI-RS, the priority information corresponding to the PSFCH can be introduced, so that the priority information of the PSFCH can be used to receive or send the beam reporting information. It can be seen that the embodiment of the present application further optimizes the PSFCH sending/receiving mechanism by determining the priority information of the PSFCH associated with the SL CSI-RS, and improves the relevant mechanism of the terminal sending and receiving the PSFCH, thereby ensuring the effectiveness of the beam management mechanism, and further improving the communication reliability.

基于上述实施例，本申请的再一实施例提出了一种侧行链路的通信方法，该方法可以可以应用于第一终端和/或第二终端。其中，第一终端和第二终端可以为侧行终端。Based on the above embodiment, another embodiment of the present application proposes a sidelink communication method, which can be applied to a first terminal and/or a second terminal. The first terminal and the second terminal can be sidelink terminals.

需要说明的是，在本申请的实施例中，第一终端和第二终端可以为侧行系统中的不同终端，本申请不进行具体限定。例如，第一终端和第二终端可以为侧行毫米波传输系统中的不同的侧行终端。It should be noted that in the embodiments of the present application, the first terminal and the second terminal may be different terminals in the sidewalk system, which is not specifically limited in the present application. For example, the first terminal and the second terminal may be different sidewalk terminals in the sidewalk millimeter wave transmission system.

下面，以优先级信息为优先级数值的情况为例，对本申请实施例提出的侧行链路的通信方法进行示例性说明。例如，第一优先级信息为第一PSFCH对应的第一优先级数值，第二优先级信息为SL CSI-RS的第二优先级数值。Below, taking the case where the priority information is a priority value as an example, the communication method of the side link proposed in the embodiment of the present application is exemplarily described. For example, the first priority information is the first priority value corresponding to the first PSFCH, and the second priority information is the second priority value of the SL CSI-RS.

进一步地，在本申请的实施例中，图21是本申请实施例提供的侧行链路的通信方法的实现流程示意图三，如图21所示，侧行链路的通信方法可以包括以下步骤：Further, in an embodiment of the present application, FIG. 21 is a schematic diagram of a third implementation flow of a sidelink communication method provided in an embodiment of the present application. As shown in FIG. 21 , the sidelink communication method may include the following steps:

步骤301、第一终端向第二终端发送第一信息；其中，第一信息用于指示SL CSI-RS的第二优先级数值。Step 301: The first terminal sends first information to the second terminal; wherein the first information is used to indicate a second priority value of the SL CSI-RS.

在本申请的实施例中，第一终端可以向第二终端发送第一信息，其中，第一信息可以用于指示SL CSI-RS的优先级数值，即指示第二优先级数值。In an embodiment of the present application, the first terminal may send first information to the second terminal, wherein the first information may be used to indicate a priority value of the SL CSI-RS, that is, to indicate a second priority value.

示例性的，在一些实施例中，第一终端可以先进行SL CSI-RS优先级的确定，即确定第二优先级数值。Exemplarily, in some embodiments, the first terminal may first determine the SL CSI-RS priority, that is, determine the second priority value.

可以理解的是，在本申请的实施例中，SL CSI-RS的传输可以位于共享资源池，所述共享资源池表示该资源池可以用于侧行数据传输，即该资源池中的PSSCH可以用于承载SL MAC SDU。SL CSI-RS的传输也可以位于专用资源池中(dedicated resource pool)，即通过配置或预配置的方式，在SL BWP中单独配置一个专用资源池用于发送/接收SL CSI-RS，在专用资源池中不会存在侧行数据传输。It can be understood that in the embodiments of the present application, the transmission of SL CSI-RS can be located in a shared resource pool, and the shared resource pool indicates that the resource pool can be used for sideline data transmission, that is, the PSSCH in the resource pool can be used to carry the SL MAC SDU. The transmission of SL CSI-RS can also be located in a dedicated resource pool (dedicated resource pool), that is, by configuration or pre-configuration, a dedicated resource pool is separately configured in the SL BWP for sending/receiving SL CSI-RS, and there will be no sideline data transmission in the dedicated resource pool.

示例性的，在一些实施例中，在SL FR2中需要为SL CSI-RS引入优先级数值，具体可以包括以下几种方法：For example, in some embodiments, it is necessary to introduce a priority value for the SL CSI-RS in the SL FR2, which may specifically include the following methods:

方法1、根据发送SL CSI-RS的目的确定SL CSI-RS的优先级数值，即根据应用类型与优先级信息的预设映射关系确定第二优先级数值。 Method 1: Determine the priority value of the SL CSI-RS according to the purpose of sending the SL CSI-RS, that is, determine the second priority value according to a preset mapping relationship between the application type and the priority information.

在毫米波系统中，波束管理机制包括初始波束配对(initial beam pairing)、波束维护(beam maintenance)、波束失效恢复(beam failure recovery)三个部分。其中，初始波束配对指的是两个终端之间第一次建立发送波束和接收波束对应关系；波束维护指的是两个终端之间在建立初始波束对之后，终端进行更加精细的波束选择以及切换；波束失效恢复指的是当两个终端之间通信质量差的一定程度后，需要进行重新在两者之间建立波束连接。In the millimeter wave system, the beam management mechanism includes three parts: initial beam pairing, beam maintenance, and beam failure recovery. Among them, initial beam pairing refers to the first establishment of the corresponding relationship between the transmit beam and the receive beam between two terminals; beam maintenance refers to the more sophisticated beam selection and switching of the terminals after the initial beam pair is established between the two terminals; beam failure recovery refers to the need to re-establish the beam connection between the two terminals when the communication quality between the two terminals deteriorates to a certain extent.

具体的，发送SL CSI-RS的目的与SL CSI-RS的优先级数值之间关系为一对一或一对多的映射关系，不同目的所映射的优先级数值可以是相同的、不同的或者部分相同的。Specifically, the relationship between the purpose of sending SL CSI-RS and the priority value of SL CSI-RS is a one-to-one or one-to-many mapping relationship, and the priority values mapped to different purposes can be the same, different, or partially the same.

发送SL CSI-RS的目的，即波束应用类型可以包括以下类型中的一种或多种：初始波束配对，波束维护，波束失效恢复。其中，波束维护可以包括发送波束选择和接收波束选择，波束失效恢复可以包括波束失效检测，波束失效恢复可以包括新候选波束选择。The purpose of sending SL CSI-RS, that is, the beam application type, may include one or more of the following types: initial beam pairing, beam maintenance, and beam failure recovery. Among them, beam maintenance may include transmit beam selection and receive beam selection, beam failure recovery may include beam failure detection, and beam failure recovery may include new candidate beam selection.

发送波束选择可以为波束维护目的下更精细的划分。当两个终端建立完初始波束对之后，终端之间建立的是粗粒度的波束对，发送终端可以使用更细粒度的波束发送SL CSI-RS，接收终端(如第二终端)使用相同的接收波束进行测量后反馈较优的测量结果给发送终端，发送终端根据反馈的信息可以确定较优的发送波束。Transmit beam selection can be a finer division for the purpose of beam maintenance. After the two terminals have established the initial beam pair, a coarse-grained beam pair is established between the terminals. The transmitting terminal can use a finer-grained beam to send SL CSI-RS. The receiving terminal (such as the second terminal) uses the same receiving beam to measure and then feeds back the better measurement result to the transmitting terminal. The transmitting terminal can determine the better transmission beam based on the feedback information.

接收波束选择可以为波束维护目的下更精细的划分。与发送波束选择不同的地方是，在进行接收波束选择时，发送终端是以相同的发送波束多次发送SL CSI-RS，接收终端以不同的接收波束进行接收，根据测量结果选择较优的接收波束。Receive beam selection can provide a more refined division for the purpose of beam maintenance. The difference from transmit beam selection is that during receive beam selection, the transmitting terminal sends SL CSI-RS multiple times with the same transmit beam, and the receiving terminal receives with different receive beams, and selects the better receive beam based on the measurement results.

波束失效检测可以波束失效恢复目的下更精细的划分。波束失效恢复过程中，第一步是需要接收终端检测波束失效才会启动恢复流程，波束失效检测的过程为发送终端周期性发送SL CSI-RS，接收终端进行接收测量，当测量结果满足一定条件后，则判定发送波束失效。Beam failure detection can be divided more finely under the purpose of beam failure recovery. In the beam failure recovery process, the first step is that the receiving terminal needs to detect beam failure before starting the recovery process. The beam failure detection process is that the transmitting terminal periodically sends SL CSI-RS, and the receiving terminal performs receiving measurement. When the measurement result meets certain conditions, it is determined that the transmitting beam fails.

新候选波束选择可以为波束失效恢复目的下更精细的划分。当判定发送波束失效后，发送终端可以使用不同的发送波束发送SL CSI-RS，接收终端进行测量后反馈新的候选波束信息给发送终端。The selection of new candidate beams can provide a finer division for the purpose of beam failure recovery. When the transmit beam is determined to be failed, the transmitting terminal can use a different transmit beam to send SL CSI-RS, and the receiving terminal will measure and feed back the new candidate beam information to the transmitting terminal.

SL CSI-RS的优先级数值为1-8中的一个或多个，这是因为SL数据业务的优先级数值包括1-8共八个优先级，为了保证在侧行数据传输和SL CSI-RS传输在相同资源池中的兼容性和可比较性，SL CSI-RS的优先级数值也应该在此范围内。The priority value of SL CSI-RS is one or more of 1-8. This is because the priority value of SL data service includes eight priorities from 1 to 8. In order to ensure the compatibility and comparability of sidelink data transmission and SL CSI-RS transmission in the same resource pool, the priority value of SL CSI-RS should also be within this range.

示例性的，在一些实施例中，发送SL CSI-RS的目的和SL CSI-RS优先级数值为一对一的映射关系，如下表5所示：Exemplarily, in some embodiments, the purpose of sending SL CSI-RS and the SL CSI-RS priority value are mapped one-to-one, as shown in Table 5 below:

表5
Table 5

示例性的，在一些实施例中，发送SL CSI-RS的目的和SL CSI-RS优先级数值为一对多的映射关系，如下表6所示：Exemplarily, in some embodiments, the purpose of sending SL CSI-RS and the SL CSI-RS priority value are a one-to-many mapping relationship, as shown in Table 6 below:

表6
Table 6

可以理解的是，在本申请的实施例中，当上述映射关系为一对多的映射关系时，终端在多个优先级中的选择方式为均匀随机选择，或取决于终端实现。It can be understood that, in the embodiment of the present application, when the above mapping relationship is a one-to-many mapping relationship, the terminal selects among multiple priorities in a uniform random manner, or depends on the terminal implementation.

方法2、根据逻辑信道中待传输数据确定SL CSI-RS的优先级数值，即根据已分配的传输资源关联的优先级数值或待传输数据的优先级数值确定第二优先级数值。Method 2: Determine the priority value of the SL CSI-RS according to the data to be transmitted in the logical channel, that is, determine the second priority value according to the priority value associated with the allocated transmission resources or the priority value of the data to be transmitted.

当终端需要发送SL CSI-RS或终端MAC层为SL CSI-RS传输触发资源选择(或重选)时，若终端已经为逻辑信道中待传输数据触发资源选择，并分配SL grant(即传已分配的传输资源)，若上述待传输的SL CSI-RS可以与数据一起通过该SL grant同时传输，则该SL CSI-RS的优先级数值等于该SL grant关联的优先级数值。否则，该SL CSI-RS优先级数值等于逻辑信道中待传输数据中最小的优先级数值(即最高优先级)。When the terminal needs to send SL CSI-RS or the terminal MAC layer triggers resource selection (or reselection) for SL CSI-RS transmission, if the terminal has triggered resource selection for the data to be transmitted in the logical channel and allocated SL grant (i.e., transmits the allocated transmission resources), if the above-mentioned SL CSI-RS to be transmitted can be transmitted simultaneously with the data through the SL grant, then the priority value of the SL CSI-RS is equal to the priority value associated with the SL grant. Otherwise, the priority value of the SL CSI-RS is equal to the priority value of the highest priority value among the data to be transmitted in the logical channel. Small priority value (i.e. highest priority).

若终端没有为逻辑信道中待传输数据触发资源选择，即不存在已分配的SL grant，则该SL CSI-RS的优先级数值等于终端逻辑信道中待传输数据中的最小优先级数值(即最高优先级)。If the terminal does not trigger resource selection for the data to be transmitted in the logical channel, that is, there is no allocated SL grant, then the priority value of the SL CSI-RS is equal to the minimum priority value (that is, the highest priority) among the data to be transmitted in the terminal's logical channel.

方法3、SL CSI-RS的优先级数值为默认的整数值，即根据第二预设数值确定第二优先级数值。Method 3: The priority value of SL CSI-RS is a default integer value, that is, the second priority value is determined according to the second preset value.

第二预设数值数值由标准预定义或约定的。例如，SL CSI-RS默认设为最高优先级，即优先级数值为1，这样配置的原因是考虑在毫米波系统中波束管理机制是保证通信可靠性的基础，如果收发终端之间没有建立合适的收发波束对，正常的数据传输无法成功传输，因此需要保证SL CSI-RS的优先发送。The second preset value is predefined or agreed upon by the standard. For example, the SL CSI-RS is set to the highest priority by default, that is, the priority value is 1. The reason for this configuration is that the beam management mechanism in the millimeter wave system is the basis for ensuring communication reliability. If a suitable transceiver beam pair is not established between the transceiver terminals, normal data transmission cannot be successfully transmitted. Therefore, it is necessary to ensure the priority transmission of the SL CSI-RS.

进一步地，当终端在一个时隙内发送多个SL CSI-RS时，例如多个SL CSI-RS以TDM的方式占用了一个时隙内的多个OFDM符号，如图9中CSI-RS#0，CSI-RS#1，CSI-RS#2…，该多个SL CSI-RS的优先级应是相同的。Furthermore, when the terminal sends multiple SL CSI-RS in one time slot, for example, multiple SL CSI-RS occupy multiple OFDM symbols in one time slot in a TDM manner, such as CSI-RS#0, CSI-RS#1, CSI-RS#2... in Figure 9, the priority of the multiple SL CSI-RS should be the same.

进一步地，现有SL机制中，侧行数据物理层优先级承载于在SCI中“priority”域，由于在共享资源池中需要考虑与侧行数据通信的兼容性(例如SL CSI-RS资源选择也需要考虑排除侧行数据的已选资源)，因此，SL CSI-RS的优先级也由SCI侧行链路控制信息中“priority”域承载，开销为3比特，所指示的优先级数值为1到8，即该域值为“000”指示的优先级数值为“1”，以此类推，数值越小表示优先级越高。需要说明的是，虽然该指示域可以指示1到8共8个优先级，在一些情况下，SL CSI-RS可以只启用其中的部分数值，例如SL CSI-RS只有3个优先级1，2，3，则只使用“priority”域中“000”、“001”、“011”三种比特指示组合。Furthermore, in the existing SL mechanism, the physical layer priority of the sidelink data is carried in the "priority" field in the SCI. Since the compatibility with the sidelink data communication needs to be considered in the shared resource pool (for example, the SL CSI-RS resource selection also needs to consider the selected resources excluding the sidelink data), the priority of the SL CSI-RS is also carried by the "priority" field in the SCI sidelink control information, with an overhead of 3 bits, and the indicated priority value is 1 to 8, that is, the priority value indicated by the field value of "000" is "1", and so on, the smaller the value, the higher the priority. It should be noted that although the indication field can indicate a total of 8 priorities from 1 to 8, in some cases, the SL CSI-RS can only enable some of the values. For example, if the SL CSI-RS has only 3 priorities 1, 2, and 3, only the three bit indication combinations of "000", "001", and "011" in the "priority" field are used.

进一步地，当SL CSI-RS和SL数据在同一时隙进行传输时，PSCCH物理侧行控制信道(用于传输控制信息)中承载的第一阶SCI中“priority”域的值根据两者中较小优先级数值确定。Furthermore, when SL CSI-RS and SL data are transmitted in the same time slot, the value of the "priority" field in the first-order SCI carried in the PSCCH physical sidelink control channel (used to transmit control information) is determined according to the smaller priority value of the two.

进一步地，对于第二终端，即从接收测量SL CSI-RS的角度来看，当接收终端进行SL CSI-RS测量时，接收终端根据与所测量的SL CSI-RS关联的SCI确定所测量的SL CSI-RS的优先级数值，具体的，上述SCI与SL CSI-RS关联关系指的是与SL CSI-RS在同一时隙传输的SCI，上述优先级数值确定方法为SL CSI-RS优先级数值等于所关联的SCI所指示的优先级数值。Furthermore, for the second terminal, that is, from the perspective of receiving and measuring the SL CSI-RS, when the receiving terminal performs SL CSI-RS measurement, the receiving terminal determines the priority value of the measured SL CSI-RS based on the SCI associated with the measured SL CSI-RS. Specifically, the above-mentioned association relationship between SCI and SL CSI-RS refers to the SCI transmitted in the same time slot as the SL CSI-RS, and the above-mentioned priority value determination method is that the SL CSI-RS priority value is equal to the priority value indicated by the associated SCI.

步骤302、第二终端基于第一PSFCH对应的第一优先级数值向第一终端发第一PSFCH承载的波束上报信息。Step 302: The second terminal sends beam reporting information carried by the first PSFCH to the first terminal based on the first priority value corresponding to the first PSFCH.

在本申请的实施例中，在第一终端向第二终端发送SL CSI-RS之后，第二终端可以基于第一优先级数值向第一终端发送SL CSI-RS对应的波束上报信息；其中，第一优先级数值为承载波束上报信息的第一PSFCH对应的优先级数值。In an embodiment of the present application, after the first terminal sends the SL CSI-RS to the second terminal, the second terminal may send beam reporting information corresponding to the SL CSI-RS to the first terminal based on a first priority value; wherein the first priority value is the priority value corresponding to the first PSFCH carrying the beam reporting information.

需要说明的是，在本申请的实施例中，波束上报信息可以包括SL CSI-RS对应的波束上报信息。其中，第一终端向第二终端发送SL CSI-RS，第二终端在测量完进行上报时，可以采用任意的上报方式。例如，可以直接上报波束上报信息；也可以预设一个门限值，当测量结果大于这个门限值时，上报1bit的指示信息；还可以在每一次测量结果大于之前所有测量结果时上报1bit的指示信息。It should be noted that, in an embodiment of the present application, the beam reporting information may include beam reporting information corresponding to the SL CSI-RS. Among them, the first terminal sends the SL CSI-RS to the second terminal, and the second terminal can use any reporting method when reporting after the measurement. For example, the beam reporting information can be reported directly; a threshold value can also be preset, and when the measurement result is greater than the threshold value, 1 bit of indication information is reported; and 1 bit of indication information can also be reported each time the measurement result is greater than all previous measurement results.

可以理解的是，在本申请的实施例中，在第一终端向第二终端发送SL CSI-RS之后，第二终端需要在相应的SL CSI-RS资源上进行测量，并将获得的测量结果上报给发送终端，上述上报信息(波束上报信息)可以承载于PSFCH，根据一定的关联关系可以通过SL CSI-RS确定唯一关联的PSFCH，此处关联关系可以是该PSFCH资源与SL CSI-RS的时域、频域、码域至少一种信息相关联，为方便后续描述，将上述用于承载所述上报信息的PSFCH称为第一PSFCH。(示例性的，每一个SL CSI-RS通过传输资源的时域信息关联唯一一个PSFCH occasion，由于PSFCH format 0只能承载1bit信息，当测量结果大于或等于一定阈值时，则在该PSFCH occasion上报“1”，反之，上报“0”。)It can be understood that in the embodiment of the present application, after the first terminal sends the SL CSI-RS to the second terminal, the second terminal needs to perform measurements on the corresponding SL CSI-RS resources and report the obtained measurement results to the sending terminal. The above-mentioned reporting information (beam reporting information) can be carried on the PSFCH. According to a certain association relationship, the unique associated PSFCH can be determined through the SL CSI-RS. The association relationship here can be that the PSFCH resource is associated with at least one information of the time domain, frequency domain, and code domain of the SL CSI-RS. For the convenience of subsequent description, the above-mentioned PSFCH used to carry the reporting information is called the first PSFCH. (Exemplarily, each SL CSI-RS is associated with a unique PSFCH occasion through the time domain information of the transmission resource. Since PSFCH format 0 can only carry 1 bit of information, when the measurement result is greater than or equal to a certain threshold, "1" is reported in the PSFCH occasion, otherwise, "0" is reported.)

示例性的，在一些实施例中，在SL系统中，已经存在承载HARQ-ACK信息的PSFCH和承载资源冲突信息的PSFCH，当引入第一PSFCH后，在资源池中的一个PSFCH occasion上可能存在多种类型以及多个PSFCH需要同时发送/接收，为了协调上述多种PSFCH的发送或接收，首先需要为第一PSFCH确定其优先级数值，具体可以包括以下几种方法：For example, in some embodiments, in the SL system, there are already PSFCHs carrying HARQ-ACK information and PSFCHs carrying resource conflict information. After the first PSFCH is introduced, there may be multiple types and multiple PSFCHs that need to be sent/received simultaneously on a PSFCH occasion in the resource pool. In order to coordinate the sending or receiving of the above multiple PSFCHs, it is first necessary to determine the priority value for the first PSFCH, which may include the following methods:

方法1、第一PSFCH优先级数值根据与其相关联的SL CSI-RS的优先级数值确定，即可以根据SL CSI-RS的第二优先级数值确定第一优先级数值。Method 1: The first PSFCH priority value is determined according to the priority value of the SL CSI-RS associated with it, that is, the first priority value can be determined according to the second priority value of the SL CSI-RS.

第一PSFCH是用于承载SL CSI-RS测量结果的相关信息的，因此，对于第一PSFCH的发送或接收，总是可以找到与其相关联的SL CSI-RS，则根据该SL CSI-RS的优先级数值可以确定第一PSFCH的优先级数值。The first PSFCH is used to carry relevant information of the SL CSI-RS measurement results. Therefore, for the transmission or reception of the first PSFCH, the SL CSI-RS associated with it can always be found. The priority value of the first PSFCH can be determined according to the priority value of the SL CSI-RS.

需要说明的是，在本申请的实施例中，若每一个SL CSI-RS关联一个第一PSFCH(one-to-one mapping)，接收终端每测量一个SL CSI-RS后，决定是否在其所关联的PSFCH occasion上发送第一 PSFCH，该第一PSFCH的优先级数值等于上述相关联的SL CSI-RS的优先级数值。It should be noted that, in the embodiment of the present application, if each SL CSI-RS is associated with a first PSFCH (one-to-one mapping), after measuring each SL CSI-RS, the receiving terminal decides whether to send the first PSFCH occasion associated with it. PSFCH, the priority value of the first PSFCH is equal to the priority value of the above-mentioned associated SL CSI-RS.

需要说明的是，在本申请的实施例中，多个SL CSI-RS关联一个PSFCH occasion，接收终端在测量完该多个SL CSI-RS后，该PSFCH occasion上通过第一PSFCH上报其中一个或多个SL CSI-RS相关的测量结果信息，在这种情况下，由于现有的PSFCH format 0无法承载多比特信息，可能需要为第一PSFCH引入新的格式从而可以承载多比特信息。It should be noted that, in an embodiment of the present application, multiple SL CSI-RS are associated with one PSFCH occasion. After the receiving terminal measures the multiple SL CSI-RS, the measurement result information related to one or more SL CSI-RS is reported through the first PSFCH on the PSFCH occasion. In this case, since the existing PSFCH format 0 cannot carry multi-bit information, it may be necessary to introduce a new format for the first PSFCH so that it can carry multi-bit information.

此时，若第一PSFCH只上报一个SL CSI-RS的测量结果信息，则该第一PSFCH的优先级数值等于该SL CSI-RS的优先级数值；若第一PSFCH上报多个SL CSI-RS的测量结果信息，则该第一PSFCH的优先级数值等于多个SL CSI-RS优先级数值中最低的优先级数值。At this time, if the first PSFCH only reports the measurement result information of one SL CSI-RS, the priority value of the first PSFCH is equal to the priority value of the SL CSI-RS; if the first PSFCH reports the measurement result information of multiple SL CSI-RS, the priority value of the first PSFCH is equal to the lowest priority value among the multiple SL CSI-RS priority values.

方法2、第一PSFCH的优先级数值根据与其关联的SCI所指示的优先级数值确定，即可以根据关联的SCI所指示的优先级参考值确定第一优先级数值。Method 2: The priority value of the first PSFCH is determined according to the priority value indicated by the SCI associated therewith, that is, the first priority value can be determined according to the priority reference value indicated by the associated SCI.

可以理解的是，在一些情况下，可能不会显示地引入SL CSI-RS的优先级数值，而是通过与SL CSI-RS相关联的SCI指示优先级数值，在这种情况下，第一PSFCH的优先级数值可以根据与该第一PSFCH所关联的SCI所指示的优先级数值(优先级参考值)确定。It can be understood that in some cases, the priority value of the SL CSI-RS may not be explicitly introduced, but the priority value may be indicated by the SCI associated with the SL CSI-RS. In this case, the priority value of the first PSFCH can be determined based on the priority value (priority reference value) indicated by the SCI associated with the first PSFCH.

示例性的，在一些实施例中，若第一PSFCH关联一个SCI，则该第一PSFCH的优先级数值等于所关联的SCI所指示的优先级数值，其中，SCI所指示的优先级数值根据该SCI中“priority”域所指示的优先级数值确定；若第一PSFCH关联多个SCI，则该第一PSFCH的优先级数值等于多个所关联的SCI所指示的优先级数值中最低的优先级数值。Exemplarily, in some embodiments, if the first PSFCH is associated with an SCI, the priority value of the first PSFCH is equal to the priority value indicated by the associated SCI, wherein the priority value indicated by the SCI is determined according to the priority value indicated by the "priority" field in the SCI; if the first PSFCH is associated with multiple SCIs, the priority value of the first PSFCH is equal to the lowest priority value among the priority values indicated by the multiple associated SCIs.

方法3、第一PSFCH的优先级数值为默认设置的一个整数值，即可以根据第一预设数值确定第一优先级数值。Method 3: The priority value of the first PSFCH is an integer value set by default, that is, the first priority value can be determined according to the first preset value.

可以理解的是，在本申请的实施例中，第一PSFCH的优先级数值为标准预定义的一个整数值，如第一预设数值。例如，可以将第一PSFCH的优先级数值默认为最高优先级数值，即该数值为“0”，此方式的优势在于终端在多种类型的PSFCH中优先处理第一PSFCH，以便在FR2频段保证波束管理机制的有效性，从而保证通信可靠性。It can be understood that, in the embodiment of the present application, the priority value of the first PSFCH is an integer value predefined by the standard, such as a first preset value. For example, the priority value of the first PSFCH can be defaulted to the highest priority value, that is, the value is "0". The advantage of this method is that the terminal prioritizes the first PSFCH among multiple types of PSFCHs, so as to ensure the effectiveness of the beam management mechanism in the FR2 frequency band, thereby ensuring communication reliability.

需要说明的是，对于发送第一PSFCH的第二终端来说，需要确定发送第一PSFCH的优先级数值，相应地，对于接收第一PSFCH的第一终端，即发送SL CSI-RS的终端来说，接收第一PSFCH时也需要确定相关的优先级数值。It should be noted that for the second terminal sending the first PSFCH, it is necessary to determine the priority value for sending the first PSFCH. Correspondingly, for the first terminal receiving the first PSFCH, that is, the terminal sending the SL CSI-RS, it is also necessary to determine the relevant priority value when receiving the first PSFCH.

也就是说，在本申请的实施例中，确定第一PSFCH的优先级数值的方法可以适用于发送第一PSFCH优先级数值的确定，也适用于接收第一PSFCH优先级数值的确定，因此，对于第一PSFCH的侧行链路的通信方法，无需做特殊区分是发送还是接收第一PSFCH。That is to say, in an embodiment of the present application, the method for determining the priority value of the first PSFCH can be applied to determining the priority value of sending the first PSFCH, and can also be applied to determining the priority value of receiving the first PSFCH. Therefore, for the communication method of the side link of the first PSFCH, there is no need to make a special distinction between sending or receiving the first PSFCH.

可以理解的是，在本申请的实施例中，第一PSFCH的优先级数值，即第一优先级数值可以基于以下一种或多种信息确定：所述SL CSI-RS的第二优先级数值，优先级参考值，第一预设数值。It can be understood that in an embodiment of the present application, the priority value of the first PSFCH, that is, the first priority value can be determined based on one or more of the following information: the second priority value of the SL CSI-RS, the priority reference value, and the first preset value.

进一步地，终端在资源池中任意一个PSFCH occasion可能既存在待发送的PSFCH，同时也存在待接收的PSFCH，但是，由于半双工限制，终端在发送或接收状态只能选择一个状态进行相关PSFCH操作。Furthermore, the terminal may have both a PSFCH to be sent and a PSFCH to be received at any PSFCH occasion in the resource pool. However, due to half-duplex limitations, the terminal can only select one state to perform related PSFCH operations in the sending or receiving state.

示例性的，在一些实施例中，在未引入第一PSFCH的情况下，终端可以根据PSFCH承载信息的内容和PSFCH优先级数值确定发送或接收状态。具体方式是，终端优先根据承载HARQ-ACK信息的PSFCH集合中所关联的优先级数值最小的PSFCH对应的状态确定发送或接收PSFCH的状态，如果没有承载HARQ-ACK信息的PSFCH但存在承载冲突信息的PSFCH，终端则根据承载冲突信息的PSFCH集合中所关联的优先级数值最小的PSFCH对应的状态确定PSFCH发送或接收的状态。Exemplarily, in some embodiments, when the first PSFCH is not introduced, the terminal can determine the sending or receiving state according to the content of the PSFCH carried information and the PSFCH priority value. Specifically, the terminal preferentially determines the state of sending or receiving PSFCH according to the state corresponding to the PSFCH with the smallest priority value associated in the PSFCH set carrying HARQ-ACK information. If there is no PSFCH carrying HARQ-ACK information but there is a PSFCH carrying conflict information, the terminal determines the state of PSFCH sending or receiving according to the state corresponding to the PSFCH with the smallest priority value associated in the PSFCH set carrying conflict information.

可以理解的是，在本申请的实施例中，当引入上述第一PSFCH后，在一个PSFCH occasion上可能存在承载三种不同信息的PSFCH，因此，终端确定发送或接收PSFCH状态的方法应与上述第一PSFCH相关，具体可以包括以下几种方法：It can be understood that in the embodiment of the present application, after the above-mentioned first PSFCH is introduced, there may be a PSFCH carrying three different information on one PSFCH occasion. Therefore, the method for the terminal to determine the state of sending or receiving the PSFCH should be related to the above-mentioned first PSFCH, and specifically may include the following methods:

方法1、若存在第一PSFCH待发送或待接收，终端根据第一PSFCH确定PSFCH发送或接收状态，其中，PSFCH的预设处理顺序指示最先处理第一PSFCH。Method 1: If there is a first PSFCH to be sent or received, the terminal determines the PSFCH sending or receiving state according to the first PSFCH, wherein the preset processing order of the PSFCH indicates that the first PSFCH is processed first.

可以理解的是，在本申请的实施例中，在PSFCH的预设处理顺序指示最先处理第一PSFCH，即基于PSFCH的预设处理顺序确定在三种类型的PSFCH中第一PSFCH的优先度最高，若存在第一PSFCH的发送或接收，终端优先考虑处理第一PSFCH。It can be understood that in an embodiment of the present application, the preset processing order of PSFCH indicates that the first PSFCH is processed first, that is, based on the preset processing order of PSFCH, it is determined that the first PSFCH has the highest priority among the three types of PSFCHs. If there is a transmission or reception of the first PSFCH, the terminal gives priority to processing the first PSFCH.

示例性的，在一些实施例中，若终端存在待发送和/或待接收的第一PSFCH，则终端可以确定第一优先级数值集合和/或第二优先级数值集合，其中，第一优先级数值集合关联于待发送的第一PSFCH的集合，第二优先级数值集合关联于待接收的第一PSFCH的集合，终端根据第一优先级数值集合和/或第二优先级数值集合中最小的优先级数值所对应的第一PSFCH确定发送PSFCH或者接收PSFCH，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the terminal has a first PSFCH to be sent and/or to be received, the terminal can determine a first priority value set and/or a second priority value set, wherein the first priority value set is associated with a set of first PSFCHs to be sent, and the second priority value set is associated with a set of first PSFCHs to be received, and the terminal determines whether to send the PSFCH or receive the PSFCH according to the first PSFCH corresponding to the smallest priority value in the first priority value set and/or the second priority value set. If the first PSFCH is the PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs on this PSFCH occasion; if the first PSFCH is the PSFCH to be received by the terminal, the terminal receives one or more PSFCHs on this PSFCH occasion.

方法2、如果只存在第一PSFCH待发送或待接收，则终端根据第一PSFCH确定发送或接收PSFCH状态，其中，PSFCH的预设处理顺序指示最后处理第一PSFCH。Method 2: If there is only the first PSFCH to be sent or received, the terminal determines the state of sending or receiving the PSFCH according to the first PSFCH, wherein the preset processing order of the PSFCH indicates that the first PSFCH is processed last.

可以理解的是，在本申请的实施例中，在PSFCH的预设处理顺序指示最后处理第一PSFCH，即基于PSFCH的预设处理顺序确定在三种类型的PSFCH中第一PSFCH的优先度最低，当不存在其他类型的PSFCH时，终端才会考虑第一PSFCH。It can be understood that in an embodiment of the present application, the preset processing order of PSFCH indicates that the first PSFCH is processed last, that is, the preset processing order based on PSFCH determines that the first PSFCH has the lowest priority among the three types of PSFCHs. When there are no other types of PSFCHs, the terminal will consider the first PSFCH.

示例性的，在一些实施例中，若终端只存在待发送和/或待接收的第一PSFCH，则终端可以确定第一优先级数值集合和/或第二优先级数值集合，其中，第一优先级数值集合关联于待发送的第一PSFCH的集合，第二优先级数值集合关联于待接收的第一PSFCH的集合，终端根据第一优先级数值集合和/或第二优先级数值集合中最小的优先级数值所对应的第一PSFCH确定发送PSFCH或者接收PSFCH，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, if the terminal has only a first PSFCH to be sent and/or to be received, the terminal may determine a first priority value set and/or a second priority value set, wherein the first priority value set is associated with a set of first PSFCHs to be sent, and the second priority value set is associated with a set of first PSFCHs to be received, and the terminal determines whether to send PSFCH or receive PSFCH based on the first PSFCH corresponding to the smallest priority value in the first priority value set and/or the second priority value set, and if the above-mentioned first PSFCH is the PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs at this PSFCH occasion; if the above-mentioned first PSFCH is the PSFCH to be received by the terminal, the terminal receives one or more PSFCHs at this PSFCH occasion.

方法3、当不存在承载HARQ-ACK信息的PSFCH且存在第一PSFCH待发送或待接收，终端根据第一PSFCH确定发送或接收PSFCH状态，其中，PSFCH的预设处理顺序指示承载HARQ-ACK信息的PSFCH的处理顺序优先于第一PSFCH。Method 3: When there is no PSFCH carrying HARQ-ACK information and there is a first PSFCH to be sent or received, the terminal determines the sending or receiving PSFCH state based on the first PSFCH, wherein the preset processing order of the PSFCH indicates that the processing order of the PSFCH carrying HARQ-ACK information takes precedence over the first PSFCH.

可以理解的是，在本申请的实施例中，基于PSFCH的预设处理顺序确定在SL FR2中第一PSFCH的优先度仅次于承载HARQ-ACK信息的PSFCH，或者，对于SL FR2不支持承载冲突资源的PSFCH的情况，如果不存在承载HARQ-ACK信息的PSFCH，终端才会考虑第一PSFCH。It can be understood that in an embodiment of the present application, the priority of the first PSFCH in SL FR2 is determined to be second only to the PSFCH carrying HARQ-ACK information based on the preset processing order of PSFCH, or, for the case where SL FR2 does not support PSFCH carrying conflicting resources, if there is no PSFCH carrying HARQ-ACK information, the terminal will consider the first PSFCH.

示例性的，在一些实施例中，当不存在待发送的承载HARQ-ACK的PSFCH时，则终端可以确定第一优先级数值集合和/或第二优先级数值集合，其中，第一优先级数值集合关联于待发送的第一PSFCH的集合，第二优先级数值集合关联于待接收的第一PSFCH的集合，终端根据第一优先级数值集合和/或第二优先级数值集合中最小的优先级数值所对应的第一PSFCH确定发送PSFCH或者接收PSFCH，若上述第一PSFCH为终端待发送的PSFCH，则终端在此PSFCH occasion发送一个或多个PSFCH；若上述第一PSFCH为终端待接收的PSFCH，则终端在此PSFCH occasion接收一个或多个PSFCH。Exemplarily, in some embodiments, when there is no PSFCH carrying HARQ-ACK to be sent, the terminal may determine a first priority value set and/or a second priority value set, wherein the first priority value set is associated with a set of first PSFCHs to be sent, and the second priority value set is associated with a set of first PSFCHs to be received, and the terminal determines whether to send or receive the PSFCH based on the first PSFCH corresponding to the smallest priority value in the first priority value set and/or the second priority value set, and if the above-mentioned first PSFCH is the PSFCH to be sent by the terminal, the terminal sends one or more PSFCHs at this PSFCH occasion; if the above-mentioned first PSFCH is the PSFCH to be received by the terminal, the terminal receives one or more PSFCHs at this PSFCH occasion.

示例性的，在一些实施例中，PSFCH的预设处理顺序可以指示最先处理第一PSFCH，也可以指示最后处理第一PSFCH，还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种处理顺序，本申请不进行具体限定。Exemplarily, in some embodiments, the preset processing order of PSFCH may indicate that the first PSFCH is processed first, or may indicate that the first PSFCH is processed last, or may indicate any processing order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make any specific limitation.

进一步地，在本申请的实施例中，第一终端可以基于第一优先级数值，PSFCH的预设接收顺序以及PSFCH接收数量阈值中的一种或多种接收第一PSFCH承载的波束上报信息。Furthermore, in an embodiment of the present application, the first terminal may receive beam reporting information carried by the first PSFCH based on one or more of a first priority value, a preset reception order of the PSFCH, and a PSFCH reception quantity threshold.

相应地，在本申请的实施例中，第二终端可以基于第一优先级数值，PSFCH的预设发送顺序以及PSFCH发送数量阈值中的一种或多种发送第一PSFCH承载的波束上报信息。Accordingly, in an embodiment of the present application, the second terminal may send beam reporting information carried by the first PSFCH based on one or more of the first priority value, the preset sending order of the PSFCH, and the PSFCH sending quantity threshold.

示例性的，在一些实施例中，以第二终端发送波束上报信息为例，当终端确定在一个PSFCH occasion上是PSFCH发送还是PSFCH接收后，如果终端在该PSFCH occasion将进行PSFCH发送操作，还需要进一步确定如何发送第一PSFCH，这是因为终端同时发送多个PSFCH的最大功率和最大数量受限，若超过一定限制，终端无法将所有待发送的PSFCH发送出去，只能选择发送其中部分PSFCH。Exemplarily, in some embodiments, taking the second terminal sending beam reporting information as an example, when the terminal determines whether to send PSFCH or receive PSFCH on a PSFCH occasion, if the terminal will perform a PSFCH sending operation on the PSFCH occasion, it is necessary to further determine how to send the first PSFCH. This is because the maximum power and maximum number of PSFCHs sent by the terminal at the same time are limited. If a certain limit is exceeded, the terminal cannot send all PSFCHs to be sent and can only choose to send part of the PSFCHs.

示例性的，在一些实施例中，终端待传输的PSFCH个数为N_{sch，Tx，PSFCH}，终端支持同时发送PSFCH的最大数量为N_max，PSFCH，终端最终传输的PSFCH数量为N_Tx，PSFCH，若N_{sch，Tx，PSFCH}>N_max，PSFCH，则N_Tx，PSFCH＝N_max，PSFCH；若N_{sch，tx，PSFCH}≤N_Max，PSFCH，则N_Tx，PSFCH＝N_{sch，tx，PSFCH}。由于终端可能存在多种类型的待发送的PSFCH，在最终所能传输的N_Tx，PSFCH个PSFCH中，终端发送第一PSFCH具体可以包括以下几种方法： Exemplarily, in some embodiments, the number of PSFCHs to be transmitted by the terminal is N _sch,Tx,PSFCH , the maximum number of PSFCHs supported by the terminal to be transmitted simultaneously is N _max,PSFCH , and the number of PSFCHs finally transmitted by the terminal is N _Tx,PSFCH . If N _sch,Tx,PSFCH >N _max,PSFCH , then N _Tx,PSFCH ＝N _max,PSFCH ; if N _sch,tx,PSFCH ≤N _Max,PSFCH , then N _Tx,PSFCH ＝N _sch,tx,PSFCH . Since the terminal may have multiple types of PSFCHs to be transmitted, among the N _Tx,PSFCH PSFCHs that can be transmitted in the end, the terminal sending the first PSFCH may specifically include the following methods:

方法1、终端优先发送第一PSFCH且先发送较小优先级数值的第一PSFCH，其中，PSFCH的预设发送顺序指示最先发送第一PSFCH。Method 1: The terminal preferentially sends the first PSFCH and sends the first PSFCH with a smaller priority value first, wherein the preset sending order of the PSFCH indicates that the first PSFCH is sent first.

示例性的，在一些实施例中，图22是本申请实施例提供的发送第一PSFCH的实现示意图四，如图22所示，终端待发送的三种PSFCH总数为8，终端所支持的同时传输PSFCH的最大数量为4，终端最后能发送的PSFCH数量应为4。此时，终端将优先选择传输第一PSFCH，若第一PSFCH能全部发送出去，才会考虑发送其他类型的PSFCH。但是，第一PSFCH数量为5，无法全部发送出去，此时，按照优先级数值升序的方式选择第一PSFCH，最后所能发送的PSFCH为优先级数值为1，3，4，6的第一PSFCH。Exemplarily, in some embodiments, FIG. 22 is a fourth schematic diagram of the implementation of sending the first PSFCH provided by an embodiment of the present application. As shown in FIG. 22, the total number of three types of PSFCHs to be sent by the terminal is 8, the maximum number of PSFCHs supported by the terminal for simultaneous transmission is 4, and the number of PSFCHs that the terminal can finally send should be 4. At this time, the terminal will give priority to transmitting the first PSFCH. If the first PSFCH can be sent out in full, it will consider sending other types of PSFCHs. However, the number of first PSFCHs is 5, which cannot be sent out in full. At this time, the first PSFCH is selected in ascending order of priority values, and the PSFCHs that can be sent in the end are the first PSFCHs with priority values of 1, 3, 4, and 6.

方法2、当承载其他信息的PSFCH数量未超过N_max，PSFCH时，才会发送第一PSFCH，其中，PSFCH的预设发送顺序指示最后发送第一PSFCH。Method 2: When the number of PSFCHs carrying other information does not exceed N _max,PSFCH , the first PSFCH is sent, wherein the preset sending order of PSFCH indicates that the first PSFCH is sent last.

示例性的，在一些实施例中，图23是本申请实施例提供的发送第一PSFCH的实现示意图五，如图23所示，终端待发送的三种PSFCH总数为8，终端所支持的同时传输PSFCH的最大数量为5，终端最后能发送的PSFCH数量应为5。此时，终端会优先选择发送除第一PSFCH外的PSFCH，还允许发送第一PSFCH时，按照优先级数值升序的方法选择第一PSFCH，最后选择发送优先级数值为1和3的两个第一PSFCH。Exemplarily, in some embodiments, FIG. 23 is a schematic diagram of the implementation of sending the first PSFCH provided in an embodiment of the present application. As shown in FIG. 23, the total number of three types of PSFCHs to be sent by the terminal is 8, the maximum number of PSFCHs supported by the terminal for simultaneous transmission is 5, and the number of PSFCHs that the terminal can finally send should be 5. At this time, the terminal will give priority to sending PSFCHs other than the first PSFCH, and when the first PSFCH is allowed to be sent, the first PSFCH is selected in ascending order of priority values, and finally two first PSFCHs with priority values of 1 and 3 are selected for sending.

可以理解的是，在本申请的实施例中，PSFCH的预设发送顺序可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的发送顺序。It can be understood that in an embodiment of the present application, the preset sending order of PSFCH can indicate the sending order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH.

示例性的，在一些实施例中，PSFCH的预设发送顺序可以指示最先发送第一PSFCH，也可以指示最后发送第一PSFCH，还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种发送顺序，本申请不进行具体限定。Exemplarily, in some embodiments, the preset sending order of PSFCH may indicate that the first PSFCH is sent first, or may indicate that the first PSFCH is sent last, or may indicate any sending order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make any specific limitation.

可以理解的是，在本申请的实施例中，终端能力对于PSFCH接收数量也会有所限制。例如，终端最多可以同时接收PSFCH的数量为N_Rx，PSFCH，当引入第一PSFCH后，同样需要对PSFCH接收规则进行修改。也就是说，第一终端在接收PSFCH时，需要基于PSFCH接收数量阈值来对同时接收多个PSFCH的最大数量进行限制，也需要基于PSFCH的预设接收顺序对接收的不同类型的PSFCH的顺序进行限制。其中，第一终端可以参考上述第二终端发送PSFCH的原则和方式来进行PSFCH的接收。It is understandable that in the embodiments of the present application, the terminal capability will also have some restrictions on the number of PSFCH receptions. For example, the maximum number of PSFCHs that a terminal can receive simultaneously is N _Rx,PSFCH . When the first PSFCH is introduced, the PSFCH reception rules also need to be modified. In other words, when the first terminal receives PSFCH, it is necessary to limit the maximum number of PSFCHs that can be received simultaneously based on the PSFCH reception number threshold, and it is also necessary to limit the order of different types of PSFCHs received based on the preset reception order of PSFCH. Among them, the first terminal can refer to the principles and methods of sending PSFCH by the second terminal to receive PSFCH.

进一步地，在本申请的实施例中，图24是本申请实施例提供的侧行链路的通信方法的实现流程示意图四，如图24所示，侧行链路的通信方法可以包括以下步骤：Further, in an embodiment of the present application, FIG. 24 is a schematic diagram of a fourth implementation flow of a sidelink communication method provided in an embodiment of the present application. As shown in FIG. 24 , the sidelink communication method may include the following steps:

步骤401、第二终端接收第一终端发送SL CSI-RS。Step 401: The second terminal receives the SL CSI-RS sent by the first terminal.

在本申请的实施例中，第一终端可以向第二终端发送SL CSI-RS，以使第二终端进行SL CSI-RS测量，并上报相应的波束上报信息。In an embodiment of the present application, the first terminal may send SL CSI-RS to the second terminal so that the second terminal performs SL CSI-RS measurement and reports corresponding beam reporting information.

步骤402、第一终端基于第一PSFCH对应的第一优先级数值接收第二终端发送的第一PSFCH承载的波束上报信息。Step 402: The first terminal receives beam reporting information carried by the first PSFCH sent by the second terminal based on the first priority value corresponding to the first PSFCH.

在本申请的实施例中，在第一终端向第二终端发送SL CSI-RS之后，第一终端基于第一优先级数值接收第二终端发送SL CSI-RS对应的波束上报信息；其中，第一优先级数值为承载波束上报信息的第一PSFCH对应的优先级数值。In an embodiment of the present application, after the first terminal sends the SL CSI-RS to the second terminal, the first terminal receives beam reporting information corresponding to the SL CSI-RS sent by the second terminal based on a first priority value; wherein the first priority value is the priority value corresponding to the first PSFCH carrying the beam reporting information.

示例性的，在一些实施例中，当引入第一PSFCH后，在资源池中的一个PSFCH occasion上可能存在多种类型以及多个PSFCH需要同时发送/接收，为了协调上述多种PSFCH的发送或接收，首先需要为第一PSFCH确定其优先级数值，具体可以包括以下几种方法：For example, in some embodiments, after the first PSFCH is introduced, there may be multiple types and multiple PSFCHs that need to be sent/received simultaneously on a PSFCH occasion in the resource pool. In order to coordinate the sending or receiving of the above multiple PSFCHs, it is first necessary to determine the priority value for the first PSFCH, which may include the following methods:

方法1、第一PSFCH的优先级数值根据与其关联的SCI所指示的优先级数值确定，即可以根据关联的SCI所指示的优先级参考值确定第一优先级数值。Method 1: The priority value of the first PSFCH is determined according to the priority value indicated by the SCI associated therewith, that is, the first priority value can be determined according to the priority reference value indicated by the associated SCI.

方法2、第一PSFCH的优先级数值为默认设置的一个整数值，即可以根据第一预设数值确定第一优先级数值。Method 2: The priority value of the first PSFCH is an integer value set by default, that is, the first priority value can be determined according to the first preset value.

可以理解的是，在本申请的实施例中，第一PSFCH的优先级数值，即第一优先级数值可以基于以下一种或多种信息确定：优先级参考值，第一预设数值。It can be understood that, in an embodiment of the present application, the priority value of the first PSFCH, that is, the first priority value can be determined based on one or more of the following information: a priority reference value, a first preset value.

相应地，在本申请的实施例中，第二终端可以基于第一优先级数值，PSFCH的预设发送顺序以及PSFCH发送数量阈值中的一种或多种发送第一PSFCH承载的波束上报信息。Accordingly, in the embodiment of the present application, the second terminal may be based on the first priority value, the preset transmission order of PSFCH is And one or more of the PSFCH sending quantity thresholds send the beam reporting information carried by the first PSFCH.

示例性的，在一些实施例中，以第一终端接收波束上报信息为例，当终端确定在一个PSFCH occasion上是PSFCH发送还是PSFCH接收后，如果终端在该PSFCH occasion将进行PSFCH接收操作，还需要进一步确定如何接收第一PSFCH，这是因为终端同时接收多个PSFCH的最大数量受限，若超过一定限制，终端无法将所有待接收的PSFCH进行接收，只能选择接收其中部分PSFCH。Exemplarily, in some embodiments, taking the first terminal receiving beam reporting information as an example, after the terminal determines whether to send PSFCH or receive PSFCH on a PSFCH occasion, if the terminal will perform a PSFCH reception operation on the PSFCH occasion, it is necessary to further determine how to receive the first PSFCH. This is because the maximum number of PSFCHs that the terminal can receive simultaneously is limited. If it exceeds a certain limit, the terminal cannot receive all PSFCHs to be received and can only choose to receive some of them.

也就是说，在本申请的实施例中，考虑到可能存在多种类型的待接收的PSFCH，以及同时接收多个PSFCH的最大能力，在最终所能接收的N_Rx，PSFCH个PSFCH中，第一终端可以基于第一优先级数值，PSFCH的预设接收顺序以及PSFCH接收数量阈值中的一种或多种接收第一PSFCH。That is to say, in an embodiment of the present application, taking into account the possibility of multiple types of PSFCHs to be received and the maximum capability of simultaneously receiving multiple PSFCHs, among the N _Rx,PSFCH PSFCHs that can be finally received, the first terminal can receive the first PSFCH based on one or more of the first priority value, the preset reception order of PSFCH and the PSFCH reception quantity threshold.

可以理解的是，在本申请的实施例中，PSFCH的预设接收顺序可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的接收顺序。It can be understood that in an embodiment of the present application, the preset reception order of PSFCH can indicate the reception order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH.

示例性的，在一些实施例中，PSFCH的预设接收顺序可以指示最先接收第一PSFCH，也可以指示最后接收第一PSFCH，还可以指示承载HARQ-ACK信息的PSFCH，和/或，承载资源冲突信息的PSFCH，和/或，第一PSFCH之间的任意一种接收顺序，本申请不进行具体限定。Exemplarily, in some embodiments, the preset receiving order of PSFCH may indicate that the first PSFCH is received first, or may indicate that the first PSFCH is received last, or may indicate any receiving order between the PSFCH carrying HARQ-ACK information, and/or the PSFCH carrying resource conflict information, and/or the first PSFCH, and the present application does not make any specific limitation.

综上所述，本申请实施例提出的侧行链路的通信方法，可以针对SL FR2中引入的standalone和non-standalone的SL CSI-RS，提出了确定SL CSI-RS相关优先级(第二优先级数值)的方法，以及确定与SL CSI-RS相关联的PSFCH的优先级(第一优先级数值)的方法。另外，当引入与SL CSI-RS相关联的PSFCH的优先级之后，通过本申请实施例提出的方法还可以对PSFCH收/发规则进行增强。In summary, the sidelink communication method proposed in the embodiment of the present application can propose a method for determining the SL CSI-RS related priority (second priority value) for the standalone and non-standalone SL CSI-RS introduced in SL FR2, as well as a method for determining the priority (first priority value) of the PSFCH associated with the SL CSI-RS. In addition, after introducing the priority of the PSFCH associated with the SL CSI-RS, the method proposed in the embodiment of the present application can also enhance the PSFCH receiving/transmitting rules.

以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于上述实施方式中的具体细节，在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，这些简单变型均属于本申请的保护范围。例如，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。又例如，本申请的各种不同的实施方式之间也可以进行任意组合，只要其不违背本申请的思想，其同样应当视为本申请所公开的内容。又例如，在不冲突的前提下，本申请描述的各个实施例和/或各个实施例中的技术特征可以和现有技术任意的相互组合，组合之后得到的技术方案也应落入本申请的保护范围。The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will not further explain various possible combinations. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and/or the technical features in the various embodiments described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the protection scope of the present application.

还应理解，在本申请的各种方法实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。此外，在本申请实施例中，术语“下行”、“上行”和“侧行”用于表示信号或数据的传输方向，其中，“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向，“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向，“侧行”用于表示信号或数据的传输方向为从用户设备1发送至用户设备2的第三方向。例如，“下行信号”表示该信号的传输方向为第一方向。另外，本申请实施例中，术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系。具体地，A和/或B可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。It should also be understood that in various method embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. In addition, in the embodiment of the present application, the terms "downlink", "uplink" and "side" are used to indicate the transmission direction of the signal or data, wherein "downlink" is used to indicate that the transmission direction of the signal or data is the first direction sent from the site to the user equipment of the cell, "uplink" is used to indicate that the transmission direction of the signal or data is the second direction sent from the user equipment of the cell to the site, and "side" is used to indicate that the transmission direction of the signal or data is the third direction sent from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is only a description of the association relationship of the associated objects, indicating that three relationships can exist. Specifically, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the front and back associated objects are in an "or" relationship.

图25是本申请实施例提供的侧行链路的通信装置的结构组成示意图一，应用于第一终端，如图25所示，该装置包括：FIG. 25 is a schematic diagram of a structure of a side link communication device provided in an embodiment of the present application, which is applied to a first terminal. As shown in FIG. 25 , the device includes:

接收单元2501，用于接收第二终端发送的波束上报信息；其中，所述波束上报信息包括SLCSI-RS对应的波束上报信息，所述第一终端基于第一PSFCH对应的第一优先级信息接收所述第一PSFCH承载的所述波束上报信息。The receiving unit 2501 is configured to receive beam reporting information sent by the second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SLCSI-RS, and the first terminal receives the first priority information corresponding to the first PSFCH based on the first priority information corresponding to the first PSFCH. The beam reporting information carried by a PSFCH.

本领域技术人员应当理解，本申请实施例的上述侧行链路的通信装置的相关描述可以参照本申请实施例的侧行链路的通信方法的相关描述进行理解。Those skilled in the art should understand that the relevant description of the above-mentioned side link communication device of the embodiment of the present application can be understood by referring to the relevant description of the side link communication method of the embodiment of the present application.

图26是本申请实施例提供的侧行链路的通信装置的结构组成示意图二，应用于第二终端，如图26所示，该装置包括：FIG. 26 is a second schematic diagram of the structure of a sidelink communication device provided in an embodiment of the present application, which is applied to a second terminal. As shown in FIG. 26 , the device includes:

发送单元2601，用于向第一终端发送波束上报信息；其中，所述波束上报信息包括SL CSI-RS对应的波束上报信息，所述第二终端基于第一PSFCH对应的第一优先级信息发送所述第一PSFCH承载的所述波束上报信息。The sending unit 2601 is used to send beam reporting information to the first terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

图27是本申请实施例提供的一种通信设备示意性结构图，图27所示的通信设备2700包括处理器2710，处理器2710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。Figure 27 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 2700 shown in Figure 27 includes a processor 2710. The processor 2710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

可选地，如图27所示，通信设备2700还可以包括存储器2720。其中，处理器2710可以从存储器2720中调用并运行计算机程序，以实现本申请实施例中的方法。Optionally, as shown in FIG27 , the communication device 2700 may further include a memory 2720. The processor 2710 may call and run a computer program from the memory 2720 to implement the method in the embodiment of the present application.

其中，存储器2720可以是独立于处理器2710的一个单独的器件，也可以集成在处理器2710中。The memory 2720 may be a separate device independent of the processor 2710 , or may be integrated into the processor 2710 .

可选地，如图27所示，通信设备2700还可以包括收发器2730，处理器2710可以控制该收发器2730与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。Optionally, as shown in FIG. 27 , the communication device 2700 may further include a transceiver 2730 , and the processor 2710 may control the transceiver 2730 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

其中，收发器2730可以包括发射机和接收机。收发器2730还可以进一步包括天线，天线的数量可以为一个或多个。The transceiver 2730 may include a transmitter and a receiver. The transceiver 2730 may further include an antenna, and the number of antennas may be one or more.

该通信设备2700具体可为本申请实施例的终端，并且该通信设备1200可以实现本申请实施例的各个方法中由终端实现的相应流程，为了简洁，在此不再赘述。The communication device 2700 may specifically be a terminal of an embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the terminal in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

图28是本申请实施例的芯片的示意性结构图。图28所示的芯片2800包括处理器2810，处理器2810可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。Fig. 28 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 2800 shown in Fig. 28 includes a processor 2810, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

可选地，如图28所示，芯片2800还可以包括存储器2820。其中，处理器2810可以从存储器2820中调用并运行计算机程序，以实现本申请实施例中的方法。Optionally, as shown in FIG28 , the chip 2800 may further include a memory 2820. The processor 2810 may call and run a computer program from the memory 2820 to implement the method in the embodiment of the present application.

其中，存储器2820可以是独立于处理器2810的一个单独的器件，也可以集成在处理器2810中。The memory 2820 may be a separate device independent of the processor 2810 , or may be integrated into the processor 2810 .

可选地，该芯片2800还可以包括输入接口2830。其中，处理器2810可以控制该输入接口2830与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。Optionally, the chip 2800 may further include an input interface 2830. The processor 2810 may control the input interface 2830 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

可选地，该芯片2800还可以包括输出接口2840。其中，处理器2810可以控制该输出接口2840与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。Optionally, the chip 2800 may further include an output interface 2840. The processor 2810 may control the output interface 2840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

该芯片可应用于本申请实施例中的终端，并且该芯片可以实现本申请实施例的各个方法中由终端实现的相应流程，为了简洁，在此不再赘述。The chip can be applied to the terminal in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be The RAM is a random access memory (RAM) used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.

本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。该计算机可读存储介质可应用于本申请实施例中的终端，并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端实现的相应流程，为了简洁，在此不再赘述。The embodiment of the present application also provides a computer-readable storage medium for storing a computer program. The computer-readable storage medium can be applied to the terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal in each method of the embodiment of the present application, which will not be described here for the sake of brevity.

本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。该计算机程序产品可应用于本申请实施例中的终端，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由终端实现的相应流程，为了简洁，在此不再赘述。The embodiment of the present application also provides a computer program product, including computer program instructions. The computer program product can be applied to the terminal in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding process implemented by the terminal in each method of the embodiment of the present application, which will not be described here for brevity.

本申请实施例还提供了一种计算机程序。该计算机程序可应用于本申请实施例中的终端，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由终端实现的相应流程，为了简洁，在此不再赘述。The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal in the embodiment of the present application. When the computer program is run on a computer, the computer executes the corresponding process implemented by the terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。 The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A sidelink communication method, the method comprising:

The first terminal receives beam reporting information sent by the second terminal; wherein the beam reporting information includes beam reporting information corresponding to a sidelink channel state information reference signal SL CSI-RS, and the first terminal receives the beam reporting information carried by the first physical sidelink feedback channel PSFCH based on the first priority information corresponding to the first PSFCH.

The method according to claim 1, wherein

The first priority information is determined based on one or more of the following information: the second priority information of the SL CSI-RS, a priority reference value, and a first preset value.

The method according to claim 2, wherein

The first terminal sends first information to the second terminal; wherein the first information is used to indicate second priority information of the SL CSI-RS.

The method according to claim 3, wherein

The second priority information is determined based on one or more of the following information: a preset mapping relationship between application type and priority information, priority information associated with allocated transmission resources, priority information of data to be transmitted, and a second preset value.

The method according to claim 4, wherein

The preset mapping relationship between the application type and the priority information is used to determine the corresponding relationship between the beam application type and the priority information; wherein the beam application type includes one or more of the following types: initial beam pairing, beam maintenance, beam failure recovery and candidate transmission beam selection.

The method according to claim 4 or 5, wherein

The second priority information is priority information corresponding to the beam application type of the SL CSI-RS, which is determined according to a preset mapping relationship between the application type and the priority information.

The method according to claim 6, wherein

When the SL CSI-RS and sidelink SL data are transmitted in the same time slot, if the priority information corresponding to the beam application type of the SL CSI-RS is less than or equal to the priority information of the SL data, then the second priority information indicated by the first information is the priority information corresponding to the beam application type of the SL CSI-RS; if the priority information corresponding to the beam application type of the SL CSI-RS is greater than the priority information of the SL data, then the second priority information indicated by the first information is the priority information of the SL data.

The method according to claim 4, wherein

The second priority information is priority information associated with the allocated transmission resources; wherein the allocated transmission resources are used to simultaneously transmit the SL CSI-RS and SL data.

The method according to claim 4, wherein

The second priority information is determined based on minimum priority information in the priority information corresponding to the data to be transmitted in the logical channel.

The method according to claim 4, wherein

The second priority information is the second preset value.

The method according to any one of claims 3 to 8, wherein:

The first information is carried in a first signaling associated with the SL CSI-RS; the first signaling includes side link control information SCI.

The method according to claim 11, wherein

One or more of the SL CSI-RS and the first signaling are transmitted in the same time slot.

The method according to any one of claims 2 to 12, wherein:

The first priority information is determined based on the second priority information corresponding to the SL CSI-RS; wherein the beam reporting information includes a beam reporting information corresponding to the SL CSI-RS.

The method according to any one of claims 2 to 12, wherein:

The first priority information is determined based on the minimum priority information among the multiple second priority information corresponding to the multiple SL CSI-RS; wherein the beam reporting information includes multiple beam reporting information corresponding to the multiple SL CSI-RS.

The method according to claim 2, wherein

The first priority information is determined based on the priority reference value indicated by the SCI associated with the SL CSI-RS.

The method according to claim 15, wherein

The first priority information is determined based on a priority reference value indicated by the SCI; wherein the first PSFCH is associated with one of the SCIs.

The method according to claim 15, wherein

The first priority information is determined based on minimum priority information among a plurality of priority reference values indicated by a plurality of SCIs; wherein the first PSFCH is associated with a plurality of the SCIs.

The method according to claim 2, wherein

The first priority information is the first preset value.

The method according to any one of claims 1 to 18, wherein the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, comprising:

The first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information and the PSFCH state; wherein the PSFCH state includes a sending state or a receiving state.

The method according to claim 19, wherein

The PSFCH state is determined based on a preset processing order of the PSFCH and a first PSFCH set; wherein the preset processing order of the PSFCH includes processing the first PSFCH first, or processing the first PSFCH last; the first PSFCH set includes one or more first PSFCHs to be sent, and/or one or more first PSFCHs to be received.

The method according to claim 20, wherein the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, comprising:

The first terminal receives the beam reporting information carried by the first PSFCH based on one or more of the first priority information, the preset reception order of PSFCH and the PSFCH reception quantity threshold; wherein the PSFCH reception quantity threshold represents the upper limit number N of PSFCH transmission opportunities corresponding to the SL CSI-RS that can simultaneously receive PSFCH, and N is an integer greater than 0.

The method according to claim 21, wherein

When the preset reception order of the PSFCH indicates that the first PSFCH is received first, and the number of first PSFCHs to be received is greater than N, the first terminal receives the beam reporting information based on the N first PSFCHs to be received with the smallest priority information.

The method according to claim 22, wherein

When the preset reception order of the PSFCH indicates that the first PSFCH is received first, and the number of the first PSFCHs to be received is less than or equal to N, the first terminal receives the beam reporting information based on all the first PSFCHs to be received.

The method according to claim 22, wherein

When the preset receiving order of the PSFCH indicates priority reception of the PSFCH carrying hybrid automatic repeat request positive acknowledgement HARQ-ACK information and the PSFCH carrying resource conflict information, and the number Q of PSFCHs to be received is less than or equal to N, the first terminal receives the beam reporting information based on the N-Q first PSFCHs to be received with the smallest priority information; wherein Q is an integer greater than 0.

A sidelink communication method, the method comprising:

The second terminal sends beam reporting information to the first terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

The method according to claim 23, wherein

The method according to claim 26, wherein

The second terminal receives the first information sent by the first terminal; wherein the first information is used to indicate the second priority information of the SL CSI-RS.

The method according to claim 27, wherein

The second priority information is determined by the first terminal based on one or more of the following information: a preset mapping relationship between application type and priority information, priority information associated with allocated transmission resources, priority information of data to be transmitted, and a second preset value.

The method according to claim 28, wherein

The method according to claim 28 or 29, wherein

The method according to claim 30, wherein

When the SL CSI-RS and SL data are transmitted in the same time slot, if the priority information corresponding to the beam application type of the SL CSI-RS is less than or equal to the priority information of the SL data, then the second priority information indicated by the first information is the priority information corresponding to the beam application type of the SL CSI-RS; if the priority information corresponding to the beam application type of the SL CSI-RS is greater than the priority information of the SL data, then the second priority information indicated by the first information is the priority information of the SL data.

The method according to claim 28, wherein

The second priority information is the second preset value.

The method according to any one of claims 27 to 32, wherein:

The method according to claim 35, wherein

The method according to any one of claims 26 to 36, wherein:

The method according to claim 26, wherein

The method according to claim 39, wherein

The method according to claim 26, wherein

The first priority information is the first preset value.

The method according to any one of claims 25 to 42, wherein the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, comprising:

The second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information and the PSFCH state; wherein the PSFCH state includes a sending state or a receiving state.

The method according to claim 43, wherein

The method according to claim 44, wherein the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority corresponding to the first PSFCH, comprising:

The second terminal sends the beam reporting information carried by the first PSFCH based on one or more of the first priority information, the preset sending order of PSFCH and the PSFCH sending quantity threshold; wherein the PSFCH sending quantity threshold represents the upper limit number M of PSFCHs that can be sent simultaneously by the PSFCH transmission opportunities corresponding to the SL CSI-RS, and M is an integer greater than 0.

The method according to claim 45, wherein

The second terminal sends the beam reporting information based on the K first PSFCHs to be sent with the smallest priority information; wherein K is an integer greater than 0 and less than or equal to M.

A sidelink communication device, applied to a first terminal, comprising:

A receiving unit, used for receiving beam reporting information sent by a second terminal; wherein the beam reporting information includes beam reporting information corresponding to the SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

A sidelink communication device, applied to a second terminal, comprising:

A sending unit, used for sending beam reporting information to a first terminal; wherein the beam reporting information includes beam reporting information corresponding to SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on the first priority information corresponding to the first PSFCH.

A terminal comprises: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method described in any one of claims 1 to 24, or the method described in any one of claims 25 to 46.

A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as described in any one of claims 1 to 24, or a method as described in any one of claims 25 to 46.

A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 24, or the method according to any one of claims 25 to 46.

A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 1 to 24, or the method according to any one of claims 25 to 46.

A computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 24, or the method according to any one of claims 25 to 46.