CN116073966A

Movatterモバイル変換

Info

Publication number: CN116073966A
Application number: CN202111277412.6A
Authority: CN
Inventors: 刘星
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2023-05-05
Anticipated expiration: 2041-10-29
Also published as: CN116073966B; WO2023071752A1

Abstract

Translated fromChinese

本申请提供了一种侧行链路传输方法及装置、网络设备、终端设备，涉及通信技术领域，该方法包括：网络设备向终端设备发送第一侧行链路配置信息，第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数，相应地，终端设备接收第一侧行链路配置信息，根据第一侧行链路配置信息在非授权频段上进行通信。利用本申请方案，可以提高侧行链路链路管理的可靠性。

The present application provides a sidelink transmission method and device, network equipment, and terminal equipment, which relate to the field of communication technology. The method includes: the network equipment sends the first sidelink configuration information to the terminal equipment, and the first sidelink The channel configuration information is used to configure the transmission parameters of the unlicensed frequency band of the sidelink. Correspondingly, the terminal device receives the first sidelink configuration information, and performs communication on the unlicensed frequency band according to the first sidelink configuration information. By using the solution of the present application, the reliability of sidelink link management can be improved.

Description

Translated fromChinese

侧行链路传输方法及装置、网络设备、终端设备Sidelink transmission method and device, network equipment, and terminal equipment

技术领域technical field

本申请涉及通信技术领域，具体涉及一种侧行链路传输方法及装置，还涉及一种网络设备和一种终端设备。The present application relates to the technical field of communication, and specifically relates to a sidelink transmission method and device, and also relates to a network device and a terminal device.

背景技术Background technique

蜂窝网络中，终端设备和基站设备进行通信，此时终端设备和基站设备之间的链路被称为上行链路(Uplink，UL)或下行链路(Downlink，DL)，接口被称为Uu接口。不同终端设备之间还可以直接进行通信，终端设备和终端设备之间的链路称为侧行链路(sidelink，SL)，接口被称为PC5接口。上下行链路和侧行链路的示意图如图1所示。In the cellular network, the terminal equipment communicates with the base station equipment. At this time, the link between the terminal equipment and the base station equipment is called uplink (Uplink, UL) or downlink (Downlink, DL), and the interface is called Uu interface. Different terminal devices can also directly communicate with each other, the link between the terminal devices is called a sidelink (sidelink, SL), and the interface is called a PC5 interface. A schematic diagram of the uplink and downlink and the sidelink is shown in FIG. 1 .

在SL上，终端设备工作在非授权频段上时，需要通过抢占机制获取资源进行传输，因此可能存在终端设备因为抢占资源失败而无法传输的情况，此时，可能会被误认为发生了无线链路失败(Radio link failure，RLF)，从而使得SL链路管理功能的可靠性较低。On SL, when a terminal device works on an unlicensed frequency band, it needs to obtain resources for transmission through the preemption mechanism. Therefore, there may be cases where the terminal device cannot transmit due to failure to preempt resources. At this time, it may be mistaken for a wireless link. Radio link failure (RLF), which makes the reliability of the SL link management function low.

发明内容Contents of the invention

本申请实施例提供一种侧行链路传输方法及装置、网络设备、终端设备，以解决现有技术中SL链路管理功能的可靠性较低的问题。Embodiments of the present application provide a sidelink transmission method and device, network equipment, and terminal equipment, so as to solve the problem of low reliability of the SL link management function in the prior art.

为解决上述技术问题，本申请实施例提供如下技术方案：In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

一方面，本申请实施例提供一种侧行链路传输方法，该方法包括：接收第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数；根据所述第一侧行链路配置信息在非授权频段上进行通信。On the one hand, an embodiment of the present application provides a sidelink transmission method, the method including: receiving first sidelink configuration information, where the first sidelink configuration information is used to configure sidelink non- Transmission parameters of the licensed frequency band; performing communication on the unlicensed frequency band according to the first sidelink configuration information.

可选地，所述方法还包括：接收第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数；根据所述第二侧行链路配置信息在授权频段上进行通信。Optionally, the method further includes: receiving second sidelink configuration information, where the second sidelink configuration information is used to configure transmission parameters of the authorized frequency band of the sidelink; The uplink configuration information is communicated on the licensed frequency band.

可选地，所述第一侧行链路配置信息包括用于确定所述非授权频段的传输参数的值的信息，所述第二侧行链路配置信息包括所述授权频段的传输参数的值，所述非授权频段的传输参数的值和所述授权频段的传输参数的值不同。Optionally, the first sidelink configuration information includes information for determining the value of the transmission parameter of the unlicensed frequency band, and the second sidelink configuration information includes information of the transmission parameter of the licensed frequency band value, the value of the transmission parameter of the unlicensed frequency band is different from the value of the transmission parameter of the licensed frequency band.

可选地，所述用于确定所述非授权频段的传输参数的值的信息为所述非授权频段的传输参数的值；或者，所述用于确定所述非授权频段的传输参数的值的信息为所述非授权频段的传输参数的值和所述授权频段的传输参数的值之间的比值。Optionally, the information used to determine the value of the transmission parameter of the unlicensed frequency band is the value of the transmission parameter of the unlicensed frequency band; or, the information used to determine the value of the transmission parameter of the unlicensed frequency band The information is the ratio between the value of the transmission parameter of the unlicensed frequency band and the value of the transmission parameter of the licensed frequency band.

可选地，所述传输参数包括至少一个参数，针对所述至少一个参数中的同一参数，所述第一侧行链路配置信息配置的值大于所述第二侧行链路配置信息配置的值。Optionally, the transmission parameters include at least one parameter, and for the same parameter in the at least one parameter, the value configured in the first sidelink configuration information is greater than the value configured in the second sidelink configuration information value.

可选地，所述根据所述第二侧行链路配置信息在授权频段上进行通信，包括：在当前发送载波和/或当前接收载波所在的频段为授权频段的情况下，根据所述第二侧行链路配置信息在授权频段上进行通信。Optionally, the communicating on the licensed frequency band according to the second sidelink configuration information includes: when the frequency band where the current sending carrier and/or the current receiving carrier is located is a licensed frequency band, according to the second Two sidelink configuration information is communicated on the licensed frequency band.

可选地，所述根据所述第一侧行链路配置信息在非授权频段上进行通信，包括：在当前发送载波和/或当前接收载波所在的频段为非授权频段的情况下，根据所述第一侧行链路配置信息在非授权频段上进行通信。Optionally, the communicating on the unlicensed frequency band according to the first sidelink configuration information includes: when the frequency band where the current sending carrier and/or the current receiving carrier is located is an unlicensed frequency band, according to the The first sidelink configuration information is communicated in an unlicensed frequency band.

可选地，所述传输参数包括以下任意一种或多种：定时器的时长、混合自动重传请求非连续发送HARQ DTX最大次数，所述定时器用于进行侧行链路管理。Optionally, the transmission parameters include any one or more of the following: the duration of the timer, the maximum number of HARQ DTX non-continuous transmission of hybrid automatic repeat request, and the timer is used for sidelink management.

另一方面，本申请实施例还提供一种侧行链路传输方法，所述方法包括：向终端设备发送第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数。On the other hand, an embodiment of the present application further provides a sidelink transmission method, the method including: sending first sidelink configuration information to a terminal device, where the first sidelink configuration information is used to configure Transmission parameters in the unlicensed band for the sidelink.

可选地，所述方法还包括：向所述终端设备发送第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数。Optionally, the method further includes: sending second sidelink configuration information to the terminal device, where the second sidelink configuration information is used to configure transmission parameters of a licensed frequency band of the sidelink.

可选地，所述第一侧行链路配置信息包括用于确定所述非授权频段的传输参数的值的信息，所述第二侧行链路配置信息包括所述授权频段的传输参数的值，所述非授权频段的传输参数和所述授权频段的传输参数的值不同。Optionally, the first sidelink configuration information includes information for determining the value of the transmission parameter of the unlicensed frequency band, and the second sidelink configuration information includes information of the transmission parameter of the licensed frequency band value, the value of the transmission parameter of the unlicensed frequency band is different from the value of the transmission parameter of the licensed frequency band.

另一方面，本申请实施例还提供一种侧行链路传输装置，所述装置包括：第一处理模块和第一通信模块；On the other hand, the embodiment of the present application also provides a sidelink transmission device, the device includes: a first processing module and a first communication module;

所述第一处理模块，用于通过所述第一通信模块接收第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数；The first processing module is configured to receive first sidelink configuration information through the first communication module, and the first sidelink configuration information is used to configure the transmission parameters of the unlicensed frequency band of the sidelink ;

所述第一处理模块，还用于根据所述第一侧行链路配置信息通过所述第一通信模块在非授权频段上进行通信。The first processing module is further configured to perform communication on an unlicensed frequency band through the first communication module according to the first sidelink configuration information.

可选地，所述第一处理模块，还用于通过所述第一通信模块接收第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数；所述第一处理模块，还用于根据所述第二侧行链路配置信息通过所述第一通信模块在授权频段上进行通信。Optionally, the first processing module is further configured to receive second sidelink configuration information through the first communication module, and the second sidelink configuration information is used to configure sidelink authorization The transmission parameter of the frequency band; the first processing module is further configured to communicate on the licensed frequency band through the first communication module according to the second sidelink configuration information.

可选地，所述第一处理模块具体用于：在当前发送载波和/或当前接收载波所在的频段为授权频段的情况下，根据所述第二侧行链路配置信息通过所述通信模块在授权频段上进行通信。Optionally, the first processing module is specifically configured to: when the frequency band where the current transmitting carrier and/or the current receiving carrier are located is a licensed frequency band, according to the second sidelink configuration information, through the communication module Communicate on licensed frequency bands.

可选地，所述第一处理模块具体用于：在当前发送载波和/或当前接收载波所在的频段为非授权频段的情况下，根据所述第一侧行链路配置信息通过所述通信模块在非授权频段上进行通信。Optionally, the first processing module is specifically configured to: when the frequency band where the current transmitting carrier and/or the current receiving carrier are located is an unlicensed frequency band, pass the communication according to the first sidelink configuration information The module communicates on an unlicensed frequency band.

另一方面，本申请实施例还提供一种侧行链路传输装置，所述装置包括：第二处理模块和第二通信模块；On the other hand, the embodiment of the present application also provides a sidelink transmission device, the device includes: a second processing module and a second communication module;

所述第二处理模块，用于通过所述第二通信模块向终端设备发送第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数。The second processing module is configured to send the first sidelink configuration information to the terminal device through the second communication module, and the first sidelink configuration information is used to configure the unlicensed frequency band of the sidelink The transmission parameters.

可选地，所述第二处理模块，还用于通过所述第二通信模块向所述终端设备发送第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数。Optionally, the second processing module is further configured to send second sidelink configuration information to the terminal device through the second communication module, and the second sidelink configuration information is used to configure the sidelink The transmission parameters of the licensed frequency band of the uplink.

另一方面，本申请实施例还提供一种终端设备，包括前面任一项所述的侧行链路传输装置。On the other hand, an embodiment of the present application further provides a terminal device, including the sidelink transmission apparatus described in any one of the preceding items.

另一方面，本申请实施例还提供一种网络设备，其特征在于，包括前面任一项所述的侧行链路传输装置。On the other hand, the embodiment of the present application further provides a network device, which is characterized by including the sidelink transmission device described in any one of the preceding items.

另一方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时使得前面各项所述方法被执行。On the other hand, the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program When executed by the processor, the methods described in the preceding items are executed.

另一方面，本申请实施例还提供一种侧行链路传输装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行前面各项所述方法。On the other hand, the embodiment of the present application also provides a sidelink transmission device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor runs the A computer program executes the methods described in the preceding items.

另一方面，本申请实施例还提供一种侧行链路传输装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时使得上述方法被执行。On the other hand, the embodiment of the present application also provides a sidelink transmission device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor runs the A computer program causes the above method to be performed.

本申请实施例提供的侧行链路传输方法及装置，针对终端设备工作在非授权频段上时需要通过抢占机制获取资源这一特点，网络侧对终端设备侧行链路的非授权频段的传输参数单独进行配置，使传输参数与非授权频段的传输特性相适配，避免将终端设备在非授权频段因抢占资源失败而无法传输的情况误判为发生了无线链路失败，提高SL链路管理的可靠性。相应地，终端设备在进行侧行链路通信时，可以根据配置的侧行链路的非授权频段的传输参数在非授权频段上进行通信。The sidelink transmission method and device provided by the embodiments of the present application aim at the feature that the terminal equipment needs to obtain resources through the preemption mechanism when it works on the unlicensed frequency band. The parameters are configured separately to match the transmission parameters with the transmission characteristics of the unlicensed frequency band, so as to avoid misjudgment that the failure of the terminal device to transmit in the unlicensed frequency band due to the failure to seize resources is a wireless link failure, and improve the SL link management reliability. Correspondingly, when performing sidelink communication, the terminal device may perform communication on the unlicensed frequency band according to the configured transmission parameters of the unlicensed frequency band of the sidelink.

进一步地，通过对授权频段和非授权频段配置不同的传输参数，可以使相应的传输参数适配不同载波的传输特性，相应地，终端设备可以根据当前载波所在的频段，采用该频段对应的传输参数进行通信，对SL链路在不同频段上的传输提供了可靠的管理功能。Furthermore, by configuring different transmission parameters for licensed frequency bands and unlicensed frequency bands, the corresponding transmission parameters can be adapted to the transmission characteristics of different carriers. Parameter communication, providing a reliable management function for the transmission of SL links in different frequency bands.

附图说明Description of drawings

图1是现有技术中上下行链路和侧行链路的示意图；FIG. 1 is a schematic diagram of uplink, downlink and sidelink in the prior art;

图2是本申请实施例侧行链路传输方法的一种流程图；FIG. 2 is a flowchart of a sidelink link transmission method according to an embodiment of the present application;

图3是本申请实施例中传输参数配置及应用的一种示意图；FIG. 3 is a schematic diagram of transmission parameter configuration and application in an embodiment of the present application;

图4是本申请实施例中传输参数配置及应用的另一种示意图；FIG. 4 is another schematic diagram of transmission parameter configuration and application in the embodiment of the present application;

图5是本申请实施例中传输参数配置及应用的另一种示意图；FIG. 5 is another schematic diagram of transmission parameter configuration and application in the embodiment of the present application;

图6是本申请实施例侧行链路传输装置的一种结构示意图；FIG. 6 is a schematic structural diagram of a sidelink transmission device according to an embodiment of the present application;

图7是本申请实施例侧行链路传输装置的另一种结构示意图；FIG. 7 is another schematic structural diagram of a sidelink transmission device according to an embodiment of the present application;

图8是本申请实施例电子设备的硬件结构示意图。FIG. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.

具体实施方式Detailed ways

为使本申请的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本申请的具体实施例做详细的说明。In order to make the above purpose, features and beneficial effects of the present application more obvious and understandable, specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

首先对本申请所适用的系统以及相应的术语进行说明。Firstly, the system applicable to this application and the corresponding terms are described.

本申请技术方案可适用于第五代(5th Generation，5G)通信系统，还可适用于第四代(4th Generation，4G)、第三代(3rd Generation，3G)通信系统，还可适用于未来新的各种通信系统，例如第六代(6th Generation，6G)、第七代(7th Generation，7G)等，本申请实施例对此并不限定。The technical solution of this application can be applied to the fifth generation (5th Generation, 5G) communication system, and can also be applied to the fourth generation (4th Generation, 4G), third generation (3rd Generation, 3G) communication system, and can also be applied to the future Various new communication systems, such as sixth generation (6th Generation, 6G), seventh generation (7th Generation, 7G), etc., are not limited in this embodiment of the present application.

本申请技术方案还适用于其他网络架构，包括但不限于中继网络架构、双链接架构、车辆到任何物体的通信(Vehicle-to-Everything，V2X)架构、设备到设备的通信(Device-to-Device，D2D)等架构。The technical solution of this application is also applicable to other network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything (V2X) architecture, device-to-device communication (Device-to- -Device, D2D) and other architectures.

本申请实施例涉及到的设备包括核心网设备、接入网设备以及终端设备。The devices involved in this embodiment of the present application include core network devices, access network devices, and terminal devices.

本申请实施例中的接入网设备是一种部署在无线接入网(RAN)用以提供无线通信功能的装置，例如，基站(base station，BS)，基站控制器，中继节点(relay node，RN)等。基站例如在2G网络中可以为基地无线收发站(Base Transceiver Station，BTS)，在3G网络中可以为节点B(NodeB)，在4G网络中可以为演进的节点B(evolved NodeB，eNB)，在无线局域网络(Wireless Local Area Networks，WLAN)中，可以为接入点(Access Point，AP)，在5G新无线(New Radio，NR)中可以为下一代基站节点(Next generation NodeB，gNB)，以及继续演进的节点B(ng-eNB),其中gNB和终端设备之间采用NR技术进行通信，ng-eNB和终端设备之间采用演进的通用地面无线接入(Evolved Universal Terrestrial Radio Access，E-UTRA)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信系统中提供基站功能的设备等。基站控制器，也可以称为基站控制器设备，是一种管理基站的装置，例如2G网络中的基站控制器(Base Station Controller，BSC)、3G网络中的无线网络控制器(Radio Network Controller，RNC)、还可指未来新的通信系统中控制管理基站的装置。The access network device in the embodiment of the present application is a device deployed in a radio access network (RAN) to provide wireless communication functions, for example, a base station (base station, BS), a base station controller, a relay node (relay node, RN) and so on. For example, the base station can be a base transceiver station (Base Transceiver Station, BTS) in a 2G network, a node B (NodeB) in a 3G network, and an evolved NodeB (evolved NodeB, eNB) in a 4G network. In a wireless local area network (Wireless Local Area Networks, WLAN), it can be an access point (Access Point, AP), and in a 5G new wireless (New Radio, NR), it can be a next generation base station node (Next generation NodeB, gNB), And the Node B (ng-eNB) that continues to evolve, in which NR technology is used for communication between gNB and terminal equipment, and evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, E- UTRA) technology for communication, both gNB and ng-eNB can be connected to the 5G core network. The base station in the embodiment of the present application also includes devices that provide base station functions in future new communication systems, and the like. A base station controller, also known as a base station controller device, is a device that manages a base station, such as a base station controller (Base Station Controller, BSC) in a 2G network, a radio network controller (Radio Network Controller, RNC) can also refer to a device that controls and manages base stations in a new communication system in the future.

本申请实施例中的终端设备，也可以称为终端、用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(Mobile Station，MS)、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。终端设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(WirelessLocal 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，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public LandMobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。The terminal equipment in the embodiment of the present application may also be referred to as terminal, user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (Mobile Station, MS), remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device. The terminal equipment can be cellular phone, cordless phone, Session Initiation Protocol (Session Initiation Protocol, SIP) phone, wireless local loop (WirelessLocal Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA), wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network or terminal devices in the future evolution of the Public Land Mobile Network (PLMN), etc. , which is not limited in this embodiment of the present application.

终端设备在SL上进行数据传输时，需要首先获取SL配置信息，比如定时器配置(例如，定时器的时长配置)、连续混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)非连续发送(Discontinuous Transmission，DTX)数量上限(可以通过字段“sl-MaxNumConsecutiveDTX”进行配置)配置等信息，终端设备根据SL配置信息进行SL传输。When the terminal device performs data transmission on the SL, it needs to obtain SL configuration information first, such as timer configuration (for example, timer duration configuration), continuous hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) discontinuous transmission (Discontinuous Transmission, DTX) upper limit (can be configured through the field "sl-MaxNumConsecutiveDTX") configuration and other information, the terminal device performs SL transmission according to the SL configuration information.

比如，SL配置信息中可以包括定时器T400的配置信息，第一终端设备向第二终端设备发送SL RRC重配置消息(RRCReconfigurationSidelink)后，启动定时器T400，在定时器T400超时，若没有收到第二终端设备回复的SL RRC重配置失败消息(RRCReconfigurationFailureSidelink)或SL RRC重配置完成消息(RRCReconfigurationCompleteSidelink)的情况下，则认为发生了SL链路失败。For example, the SL configuration information may include the configuration information of the timer T400. After the first terminal device sends the SL RRC reconfiguration message (RRCReconfigurationSidelink) to the second terminal device, the timer T400 is started. When the timer T400 expires, if no In the case of the SL RRC reconfiguration failure message (RRCReconfigurationFailureSidelink) or the SL RRC reconfiguration completion message (RRCReconfigurationCompleteSidelink) returned by the second terminal device, it is considered that an SL link failure has occurred.

再比如，SL配置信息中可以包括定时器T5000的配置信息，在SL连接建立时，第一终端设备向第二终端设备发送直连链路建立请求消息(DIRECT LINK ESTABLISHMENTREQUEST)后，启动定时器T5000，如果在定时器T5000超时前未收到直连链路建立接收(DIRECT LINK ESTABLISHMENT ACCEPT)或者直连链路建立拒绝(DIRECT LINKESTABLISHMENT REJECT)消息，则重新发送直连链路建立请求消息，或者终止该直连链路建立过程。在T5000超时后，如未收到上述消息，则认为发生了SL链路失败。再比如，SL配置信息中可以包括HARQ DTX数量上限(假设为X)，当第一终端设备发送任意数据包给第二终端设备之后，连续X次没有收到来自第二终端设备的HARQ反馈，则认为发生了SL链路失败。For another example, the SL configuration information may include the configuration information of the timer T5000. When the SL connection is established, the first terminal device starts the timer T5000 after sending a direct link establishment request message (DIRECT LINK ESTABLISHMENTREQUEST) to the second terminal device. , if the DIRECT LINK ESTABLISHMENT ACCEPT or DIRECT LINK ESTABLISHMENT REJECT message is not received before the timer T5000 expires, resend the DIRECT LINK ESTABLISHMENT REJECT message, or terminate The direct link establishment process. After T5000 times out, if the above message is not received, it is considered that an SL link failure has occurred. For another example, the SL configuration information may include the upper limit of the number of HARQ DTXs (assumed to be X). After the first terminal device sends any data packet to the second terminal device, it does not receive HARQ feedback from the second terminal device for X consecutive times. Then it is considered that an SL link failure has occurred.

在SL上存在授权和非授权两种频段时，终端设备在非授权频段上需要通过抢占机制获取资源。如果对于授权和非授权两种频段配置同一套SL配置参数，例如都使用同样的T400的时长，当终端设备工作在非授权频段上时，可能存在上述第二终端设备因为抢占资源失败而无法反馈的情况，当T400超时，上述第一终端设备会误认为发生SL链路失败。When there are licensed and unlicensed frequency bands on the SL, the terminal device needs to obtain resources through the preemption mechanism on the unlicensed frequency band. If the same set of SL configuration parameters is configured for the licensed and unlicensed frequency bands, for example, the same T400 duration is used, when the terminal device is working on the unlicensed frequency band, the above-mentioned second terminal device may fail to respond due to resource preemption failure. In some cases, when T400 times out, the above-mentioned first terminal device will mistakenly believe that the SL link failure occurs.

针对上述问题，本申请实施例提供一种侧行链路传输方法，对SL的授权频段和非授权频段分别进行配置，相应地，终端设备可根据当前载波所在的频段，选择对应的传输参数进行SL传输。参见图2，该方法包括：In view of the above problems, the embodiment of the present application provides a sidelink transmission method, which configures the licensed frequency band and the unlicensed frequency band of the SL respectively. Correspondingly, the terminal device can select the corresponding transmission parameters according to the frequency band where the current carrier is located. SL transmission. Referring to Figure 2, the method includes:

201、网络设备向终端设备发送第一侧行链路配置信息，第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数。相应的，终端设备接收第一侧行链路配置信息。201. The network device sends first sidelink configuration information to the terminal device, where the first sidelink configuration information is used to configure transmission parameters of an unlicensed frequency band of the sidelink. Correspondingly, the terminal device receives the first sidelink configuration information.

其中，网络设备可以为核心网设备或接入网设备，若为前者，核心网设备可以将第一侧行链路配置信息发送给接入网设备，接入网设备将第一侧行链路配置信息透传给终端设备。示例性的，核心网设备可以为AMF(Access and mobility management function，接入及移动性管理功能)、ProSe Function(Proximity service function，邻近服务功能)等。Wherein, the network device can be a core network device or an access network device. If it is the former, the core network device can send the first sidelink configuration information to the access network device, and the access network device sends the first sidelink configuration information to the access network device. The configuration information is transparently transmitted to the terminal device. Exemplarily, the core network device may be AMF (Access and mobility management function, access and mobility management function), ProSe Function (Proximity service function, proximity service function), etc.

可选的，本申请中的传输参数可以包括一个或多个参数，比如可以包括但不限于以下任意一种或多种参数：定时器的时长、HARQ DTX最大次数等。其中，所述定时器用于进行侧行链路管理。Optionally, the transmission parameters in this application may include one or more parameters, such as but not limited to any one or more of the following parameters: the duration of the timer, the maximum number of HARQ DTX, etc. Wherein, the timer is used for sidelink management.

示例性的，定时器可以包括T400和/或T5000，还可以包括其他用于进行侧行链路管理的定时器。Exemplarily, the timer may include T400 and/or T5000, and may also include other timers used for sidelink management.

需要说明的是，所述传输参数可以在现有的配置信息中引入新的字段来表示非授权链路的配置信息。It should be noted that, the transmission parameter may introduce a new field into the existing configuration information to represent the configuration information of the unauthorized link.

需要说明的是，在实际应用中，可以在现有的配置信息中引入新的字段来表示非授权链路的配置信息。It should be noted that, in practical applications, a new field may be introduced into the existing configuration information to represent the configuration information of the unauthorized link.

可选的，在步骤201之前，该方法还可包括：网络设备生成第一侧行链路配置信息。Optionally, before step 201, the method may further include: the network device generates first sidelink configuration information.

202、终端设备根据第一侧行链路配置信息在非授权频段上进行通信。202. The terminal device performs communication on an unlicensed frequency band according to the first sidelink configuration information.

可选的，步骤202在具体实现时可以包括：在当前发送载波和/或当前接收载波所在的频段为非授权频段的情况下，根据所述第一侧行链路配置信息在非授权频段上进行通信。Optionally, during specific implementation, step 202 may include: in the case that the frequency band where the current transmitting carrier and/or the current receiving carrier is located is an unlicensed frequency band, according to the first sidelink configuration information on the unlicensed frequency band to communicate.

为了提高SL链路管理功能的可靠性，本申请实施例中，网络设备为终端设备单独配置非授权频段的传输参数，根据上文中的描述可知，若网络设备在非授权频段上采用授权频段的传输参数，会导致RLF的误判，因此，通过单独为非授权频段配置传输参数，可以根据非授权频段的特点灵活的配置适合非授权频段的传输参数，从而提高SL链路管理功能的可靠性。In order to improve the reliability of the SL link management function, in the embodiment of this application, the network device separately configures the transmission parameters of the unlicensed frequency band for the terminal device. According to the above description, if the network device uses the licensed frequency band on the unlicensed frequency band Transmission parameters will lead to RLF misjudgment. Therefore, by configuring transmission parameters for the unlicensed frequency band separately, you can flexibly configure transmission parameters suitable for the unlicensed frequency band according to the characteristics of the unlicensed frequency band, thereby improving the reliability of the SL link management function. .

可选的，参见图2，该方法还可进一步包括：203、网络设备向终端设备发送第二侧行链路配置信息，第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数。相应的。终端设备接收第二侧行链路配置信息。Optionally, referring to FIG. 2, the method may further include: 203, the network device sends second sidelink configuration information to the terminal device, and the second sidelink configuration information is used to configure the authorized frequency band of the sidelink The transmission parameters. corresponding. The terminal device receives second sidelink configuration information.

其中，第一侧行链路配置信息和第二侧行链路配置信息可以放在同一消息中，也可以放在不同的消息中，本申请不作限制。该消息可以是专有信令或系统消息等，对此本申请实施例不做限定。Wherein, the first sidelink configuration information and the second sidelink configuration information may be placed in the same message or in different messages, which is not limited in this application. The message may be a proprietary signaling or a system message, which is not limited in this embodiment of the present application.

可选的，在步骤203之前，该方法还包括：网络设备生成第二侧行链路配置信息。Optionally, before step 203, the method further includes: the network device generates second sidelink configuration information.

204、终端设备根据所述第二侧行链路配置信息在授权频段上进行通信。204. The terminal device performs communication on the authorized frequency band according to the second sidelink configuration information.

可选的，步骤204在具体实现时可以包括：Optionally, step 204 may include during specific implementation:

在当前发送载波和/或当前接收载波所在的频段为授权频段的情况下，根据所述第二侧行链路配置信息在授权频段上进行通信。In a case where the frequency band where the current sending carrier and/or the current receiving carrier is located is an authorized frequency band, communication is performed on the authorized frequency band according to the second sidelink configuration information.

终端设备在进行侧行链路传输时，可以根据网络设备配置的针对非授权频段和授权频段的配置信息和当前载波所在的频段，选择相应的传输参数进行通信。When performing sidelink transmission, the terminal device can select corresponding transmission parameters for communication according to the configuration information for the unlicensed frequency band and licensed frequency band configured by the network device and the frequency band where the current carrier is located.

其中，步骤201和步骤202中的任意一个步骤，与步骤203和步骤204中的任意一个步骤之间的执行顺序不分先后。Wherein, the execution sequence between any one of step 201 and step 202 and any one of step 203 and step 204 is in no particular order.

可选地，所述用于确定所述非授权频段的传输参数的值的信息可以有以下两种情况：Optionally, the information for determining the value of the transmission parameter of the unlicensed frequency band may have the following two situations:

情况1、用于确定所述非授权频段的传输参数的值为所述非授权频段的传输参数的值。Case 1: The value used to determine the transmission parameter of the unlicensed frequency band is the value of the transmission parameter of the unlicensed frequency band.

在情况1下，终端设备可以直接根据第一侧行链路配置信息确定非授权频段的传输参数。In case 1, the terminal device may directly determine the transmission parameters of the unlicensed frequency band according to the first sidelink configuration information.

情况2、用于确定所述非授权频段的传输参数的值的信息为所述非授权频段的传输参数的值和所述授权频段的传输参数的值之间的比值。In case 2, the information used to determine the value of the transmission parameter of the unlicensed frequency band is the ratio between the value of the transmission parameter of the unlicensed frequency band and the value of the transmission parameter of the licensed frequency band.

在情况2下，终端设备可以根据该比值和授权频段的传输参数的值计算得到非授权频段的传输参数。In case 2, the terminal device can calculate the transmission parameter of the unlicensed frequency band according to the ratio and the value of the transmission parameter of the licensed frequency band.

在情况2下，需要说明的是，针对传输参数中的不同的参数，该比值可以相同也可以不同，本申请不作限制。若针对传输参数中的全部参数，该比值均相同，第一侧行链路配置信息可以仅配置一个值，从而降低信令开销。In case 2, it should be noted that, for different parameters in the transmission parameters, the ratio may be the same or different, which is not limited in this application. If the ratio is the same for all parameters in the transmission parameters, only one value may be configured in the first sidelink configuration information, thereby reducing signaling overhead.

情况3、用于确定所述非授权频段的传输参数的值的信息为所述非授权频段的传输参数的值和所述授权频段的传输参数的值之间的差值。Case 3: The information used to determine the value of the transmission parameter of the unlicensed frequency band is the difference between the value of the transmission parameter of the unlicensed frequency band and the value of the transmission parameter of the licensed frequency band.

在情况3下，终端设备可以根据该差值和授权频段的传输参数的值计算得到非授权频段的传输参数。In case 3, the terminal device may calculate the transmission parameter of the unlicensed frequency band according to the difference and the value of the transmission parameter of the licensed frequency band.

在情况3下，需要说明的是，针对传输参数中的不同的参数，该差值可以相同也可以不同，本申请不作限制。若针对传输参数中的全部参数，该差值均相同，第一侧行链路配置信息可以仅配置一个值，从而降低信令开销。In case 3, it should be noted that for different parameters in the transmission parameters, the difference may be the same or different, which is not limited in this application. If the difference is the same for all parameters in the transmission parameters, only one value may be configured in the first sidelink configuration information, thereby reducing signaling overhead.

当然，用于确定所述非授权频段的传输参数的值的信息也可以为其他信息，本申请不做限制。Of course, the information used to determine the value of the transmission parameter of the unlicensed frequency band may also be other information, which is not limited in this application.

可选地，所述传输参数包括至少一个参数，针对所述至少一个参数中的同一参数，所述第一侧行链路配置信息配置的值大于所述第二侧行链路配置信息配置的值，比如非授权频段的T400的时长T1大于授权频段的T400的时长T2。该情况下，在非授权频段进行传输时，不会因对端终端设备抢占资源失败而未及时反馈的情况下，在T400到达时长T2时误判为SL链路失败，而是等到T400到达时长T1后才会判断SL链路失败，可以更好地保证非授权频段上的传输，提高SL链路管理的可靠性。Optionally, the transmission parameters include at least one parameter, and for the same parameter in the at least one parameter, the value configured in the first sidelink configuration information is greater than the value configured in the second sidelink configuration information For example, the duration T1 of T400 in the unlicensed frequency band is greater than the duration T2 of T400 in the licensed frequency band. In this case, when transmitting in the unlicensed frequency band, it will not be misjudged as SL link failure when T400 arrives at T2 when the peer terminal device fails to seize resources and fails to give feedback in time, but waits until T400 arrives The failure of the SL link will be judged after T1, which can better ensure the transmission on the unlicensed frequency band and improve the reliability of SL link management.

需要说明的是，在实际应用中，授权频段和非授权频段对应的传输参数可以全部或部分由网络设备下发给终端设备或者由协议提供，对此本申请实施例不做限定。It should be noted that, in practical applications, the transmission parameters corresponding to the licensed frequency band and the unlicensed frequency band may be all or partly delivered by the network device to the terminal device or provided by a protocol, which is not limited in this embodiment of the present application.

在本申请实施例中，针对终端设备工作在非授权频段上时需要通过抢占机制获取资源这一特点，网络侧对终端设备侧行链路的非授权频段的传输参数单独进行配置，也就是说，采用两套传输参数，即分别配置侧行链路的非授权频段的传输参数和授权频段的传输参数。进一步地，对侧行链路的授权频段和非授权频段配置不同的传输参数。相应地，终端设备在进行侧行链路传输时，可以根据当前载波所在的频段，采用该频段对应的传输参数进行侧行链路传输，也就是说，根据配置的侧行链路的非授权频段的传输参数在非授权频段上进行通信，根据配置的侧行链路的授权频段的传输参数在授权频段上进行通信。由于对授权频段和非授权频段配置了不同的传输参数，可以使相应的传输参数适配不同载波的传输特性，有效避免终端设备因为抢占资源失败而无法传输的情况误判为SL链路失败的情况，进而提高SL链路管理功能的可靠性。In this embodiment of the application, in view of the fact that the terminal device needs to obtain resources through the preemption mechanism when it works on the unlicensed frequency band, the network side separately configures the transmission parameters of the unlicensed frequency band of the side link of the terminal device, that is to say , two sets of transmission parameters are adopted, that is, the transmission parameters of the unlicensed frequency band and the transmission parameters of the licensed frequency band of the sidelink are respectively configured. Further, different transmission parameters are configured for the licensed frequency band and the unlicensed frequency band of the sidelink. Correspondingly, when performing sidelink transmission, the terminal device can use the transmission parameters corresponding to the frequency band to perform sidelink transmission according to the frequency band where the current carrier is located, that is, according to the configured unlicensed The transmission parameters of the frequency band are communicated on the unlicensed frequency band, and the communication is performed on the authorized frequency band according to the configured transmission parameters of the authorized frequency band of the sidelink. Since different transmission parameters are configured for licensed frequency bands and unlicensed frequency bands, the corresponding transmission parameters can be adapted to the transmission characteristics of different carriers, effectively avoiding the misjudgment that the terminal equipment cannot transmit due to failure to seize resources as SL link failure In this way, the reliability of the SL link management function is improved.

示例性的，在由接入网设备配置上述传输参数的情况下，可以有多种不同的配置方式，比如：Exemplarily, in the case where the above-mentioned transmission parameters are configured by the access network device, there may be various configuration methods, such as:

(1)在终端设备处于连接态的情况下，接入网设备可以通过专有信令发送第一侧行链路配置信息和/或第二侧行链路配置信息给终端设备。(1) When the terminal device is in the connected state, the access network device may send the first sidelink configuration information and/or the second sidelink configuration information to the terminal device through dedicated signaling.

(2)在终端设备处于空闲态或非活动态的情况下，接入网设备可以通过系统信息块(System information block，SIB)广播第一侧行链路配置信息和/或第二侧行链路SL配置信息。(2) When the terminal device is in the idle state or inactive state, the access network device can broadcast the first sidelink configuration information and/or the second sidelink configuration information through the system information block (SIB) Route SL configuration information.

另外，在终端设备位于接入网设备覆盖范围之外、无法收到接入网设备的信号的情况下，终端设备还可以通过保存的预配置信息获取相应的传输参数。In addition, when the terminal device is located outside the coverage of the access network device and cannot receive the signal of the access network device, the terminal device can also obtain the corresponding transmission parameters through the stored pre-configuration information.

为了使得本申请上述实施例更加的清楚，以下通过图3、图4和图5所示的实施例对上述实施例的实现过程做示例性说明，图3、图4和图5所示的实施例的不同之处在于，图3所示的实施例传输参数中包括T5000的时长，图4所示的实施例传输参数中包括HARQ DTX数量上限，图5所示的实施例中传输参数中包括T5000的时长。图3、图4和图5所示的过程中以网络设备为基站为例进行说明，以下对图3、图4和图5的实现过程分别进行描述。如图3所示，是本申请实施例中传输参数配置及应用的一种示意图。In order to make the above-mentioned embodiments of the present application more clear, the implementation process of the above-mentioned embodiments is illustrated below through the embodiments shown in Fig. 3, Fig. 4 and Fig. 5. The implementation shown in Fig. 3, Fig. 4 and Fig. 5 The difference between the examples is that the transmission parameters of the embodiment shown in Figure 3 include the duration of T5000, the transmission parameters of the embodiment shown in Figure 4 include the upper limit of the number of HARQ DTX, and the transmission parameters of the embodiment shown in Figure 5 include The duration of T5000. The processes shown in FIG. 3 , FIG. 4 and FIG. 5 are described by taking the network device as an example, and the implementation processes in FIG. 3 , FIG. 4 and FIG. 5 are described respectively below. As shown in FIG. 3 , it is a schematic diagram of transmission parameter configuration and application in the embodiment of the present application.

在步骤31，基站向第一终端设备发送第一侧行链路配置信息，比如通过SIB广播侧行链路配置信息，以配置侧行链路的非授权频段的传输参数，传输参数包括非授权频段对应的定时器T5000的时长。In step 31, the base station sends the first sidelink configuration information to the first terminal device, such as broadcasting the sidelink configuration information through the SIB, to configure the transmission parameters of the unlicensed frequency band of the sidelink, and the transmission parameters include unlicensed The duration of the timer T5000 corresponding to the frequency band.

需要说明的是，授权频段对应的传输参数可以由基站发送的第二侧行链路配置信息来确定，或者由协议提供。It should be noted that the transmission parameters corresponding to the licensed frequency band may be determined by the second sidelink configuration information sent by the base station, or provided by a protocol.

在步骤32，第一终端设备保存基站配置的非授权频段的传输参数。In step 32, the first terminal device saves the transmission parameters of the unlicensed frequency band configured by the base station.

在步骤33，第一终端设备需要与第二终端设备建立SL连接时，第一终端设备向第二终端设备发送直连链路建立请求消息(DIRECT LINK ESTABLISHMENT REQUEST)。In step 33, when the first terminal device needs to establish an SL connection with the second terminal device, the first terminal device sends a direct link establishment request message (DIRECT LINK ESTABLISHMENT REQUEST) to the second terminal device.

若当前发送载波所在的频段为非授权频段，在步骤34，第一终端设备启动非授权频段对应的定时器T5000。If the frequency band where the current sending carrier is located is an unlicensed frequency band, in step 34, the first terminal device starts a timer T5000 corresponding to the unlicensed frequency band.

第一终端设备在定时器T5000超时前未收到第二终端设备发送的直连链路建立接收(DIRECT LINK ESTABLISHMENT ACCEPT)或者直连链路建立拒绝(DIRECT LINKESTABLISHMENT REJECT)消息，因此在步骤35，重新发送直连链路建立请求消息。The first terminal device does not receive the direct link establishment reception (DIRECT LINK ESTABLISHMENT ACCEPT) or the direct link establishment rejection (DIRECT LINKESTABLISHMENT REJECT) message sent by the second terminal device before the timer T5000 expires, so in step 35, Resend the direct link establishment request message.

在步骤36.定时器T5000超时，第一终端设备确定发生了SL链路失败。In step 36. The timer T5000 expires, and the first terminal device determines that an SL link failure occurs.

由于非授权频段的T5000的时长的值比授权频段的T5000的时长的值大，比如，非授权频段的T5000的时长为t1，授权频段的T5000的时长为t2，t1>t2，因此可以为接收直连链路建立接收或直连链路建立拒绝消息提供更长的等待时间，从而在一定程度上弥补了第二终端设备因抢占资源失败而导致的消息无法发送所占用的时间，提升了侧行链路管理的可靠性。Since the value of the T5000 duration of the unlicensed frequency band is greater than the value of the T5000 duration of the licensed frequency band, for example, the duration of the T5000 of the unlicensed frequency band is t1, and the duration of the T5000 of the licensed frequency band is t2, t1>t2, so it can be received The direct link establishment reception or direct link establishment rejection message provides a longer waiting time, which to a certain extent makes up for the time taken by the second terminal device to fail to send the message due to resource preemption failure, and improves the side Reliability of link management.

如图4所示，是本申请实施例中传输参数配置及应用的另一种示意图。As shown in FIG. 4 , it is another schematic diagram of transmission parameter configuration and application in the embodiment of the present application.

在步骤41，基站向第一终端设备发送第一侧行链路配置信息和第二侧行链路配置信息，比如可以通过专有信令发送上述配置信息，第一侧行链路配置信息中包括非授权频段对应的传输参数：连续HARQ DTX数量上限(比如为3)。In step 41, the base station sends the first side link configuration information and the second side link configuration information to the first terminal device, for example, the above configuration information may be sent through dedicated signaling, and the first side link configuration information Including the transmission parameters corresponding to the unlicensed frequency band: the upper limit of the number of continuous HARQ DTX (for example, 3).

在步骤42，第一终端设备向第二终端设备发送数据A，由于未收到第二终端设备的HARQ反馈，重复发送数据A。In step 42, the first terminal device sends data A to the second terminal device, and repeatedly sends data A because no HARQ feedback from the second terminal device is received.

若当前接收载波所在的频段为非授权频段，在步骤43，第一终端设备向第二终端设备重复发送数据A的次数达到3次后，确定发生了SL链路失败。If the frequency band where the current receiving carrier is located is an unlicensed frequency band, in step 43, after the first terminal device repeatedly sends data A to the second terminal device for 3 times, it is determined that an SL link failure has occurred.

由于非授权频段的HARQ DTX数量上限(假设为3)比授权频段的HARQ DTX数量上限(假设为2)大，因此，在第一终端发送数据包给第二终端后，连续3次没有收到来自第二终端设备的HARQ反馈，才会认为发生了SL链路失败，相对于授权频段的HARQ DTX数量上限，增加了重复发送该数据包的次数，同样是在一定程度上弥补了第二终端设备因抢占资源失败而导致的无法进行HARQ反馈的情况而占用的数据重发次数，提升了侧行链路管理的可靠性。Since the upper limit of the number of HARQ DTXs in the unlicensed frequency band (assumed to be 3) is greater than the upper limit of the number of HARQ DTXs in the licensed frequency band (assumed to be 2), after the first terminal sends a data packet to the second terminal, it does not receive it for 3 consecutive times. Only the HARQ feedback from the second terminal device will consider that the SL link failure has occurred. Compared with the upper limit of the HARQ DTX number in the licensed frequency band, the number of times the data packet is repeatedly sent is increased, which also makes up for the second terminal to a certain extent. The number of data retransmissions occupied by the device due to the failure to preempt resources due to the failure to perform HARQ feedback improves the reliability of sidelink management.

如图5所示，是本申请实施例中传输参数配置及应用的另一种示意图。As shown in FIG. 5 , it is another schematic diagram of transmission parameter configuration and application in the embodiment of the present application.

在步骤51，基站向第一终端设备发送第一侧行链路配置信息和第二侧行链路配置信息，第一终端设备接收基站下发的第一侧行链路配置信息和第二侧行链路配置信息，第二侧行链路配置信息中包括授权频段的定时器T400的时长T1，第一侧行链路配置信息中包括非授权频段对应的定时器T400的时长T2与授权频段对应的定时器T400的差值△T，△T大于0。In step 51, the base station sends the first side link configuration information and the second side link configuration information to the first terminal device, and the first terminal device receives the first side link configuration information and the second side link configuration information issued by the base station. Uplink configuration information, the second sidelink configuration information includes the duration T1 of the timer T400 of the licensed frequency band, and the first sidelink configuration information includes the duration T2 of the timer T400 corresponding to the unlicensed frequency band and the licensed frequency band The difference ΔT of the corresponding timer T400, ΔT is greater than 0.

在步骤52，第一终端设备确定非授权频段对应的定时器T400的时长T2为T1+△T。In step 52, the first terminal device determines that the duration T2 of the timer T400 corresponding to the unlicensed frequency band is T1+ΔT.

在步骤53，第一终端设备需要与第二终端设备交互配置信息，第一终端设备向第二终端设备发送SL RRC重配置消息。In step 53, the first terminal device needs to exchange configuration information with the second terminal device, and the first terminal device sends an SL RRC reconfiguration message to the second terminal device.

若当前发送载波所在的频段为非授权频段，在步骤54，启动非授权频段对应的定时器T400，定时器T400的时长为T1+△T。If the frequency band where the current transmitting carrier is located is an unlicensed frequency band, in step 54, start a timer T400 corresponding to the unlicensed frequency band, and the duration of the timer T400 is T1+ΔT.

在定时器T400达到T1+△T时，第一终端设备没有收到第二终端设备回复的SL RRC重配置失败消息或SL RRC重配置完成消息，因此在步骤55，确定发生了SL链路失败。When the timer T400 reaches T1+△T, the first terminal equipment does not receive the SL RRC reconfiguration failure message or the SL RRC reconfiguration completion message replied by the second terminal equipment, so in step 55, it is determined that an SL link failure has occurred.

由于非授权频段的T400的时长的值比授权频段的T400的时长的值大，因此可以为接收SL RRC重配置失败消息或SL RRC重配置完成消息提供更长的等待时间，从而在一定程度上弥补了第二终端设备因抢占资源失败而导致的消息无法发送所占用的时间，提升了侧行链路管理的可靠性。Since the value of the T400 duration of the unlicensed frequency band is larger than the value of the T400 duration of the licensed frequency band, a longer waiting time can be provided for receiving the SL RRC reconfiguration failure message or the SL RRC reconfiguration completion message, thus to a certain extent It makes up for the time taken by the second terminal device that the message cannot be sent due to the failure to seize resources, and improves the reliability of sidelink management.

需要说明的是，上述各实施例中的步骤只是示意性地描述，并不限定本申请方案的具体实施步骤及先后顺序。It should be noted that the steps in the above embodiments are only schematically described, and do not limit the specific implementation steps and sequence of the solution of the present application.

本申请实施例提供的侧行链路传输方法，针对终端设备工作在非授权频段上时需要通过抢占机制获取资源这一特点，对侧行链路的授权频段和非授权频段的传输参数分别进行配置，从而可以使配置的传输参数分别与授权频段和非授权频段相适应。相应地，终端设备在进行SL通信时，可以根据当前载波所在的频段，选择该频段对应的传输参数进行通信，由于对授权频段和非授权频段的传输参数分别进行配置，因此可以使相应的传输参数适配不同载波的传输特性，有效避免将接收端终端设备因为抢占资源失败而无法反馈的情况误判为SL链路失败的情况，进而提高SL链路管理的可靠性。The sidelink transmission method provided by the embodiment of the present application aims at the feature that the terminal equipment needs to obtain resources through the preemption mechanism when it works on the unlicensed frequency band, and performs the transmission parameters of the licensed frequency band and the unlicensed frequency band of the sidelink respectively. configuration, so that the configured transmission parameters can be adapted to the licensed frequency band and the unlicensed frequency band respectively. Correspondingly, when performing SL communication, the terminal device can select the transmission parameters corresponding to the frequency band for communication according to the frequency band where the current carrier is located. Since the transmission parameters of the licensed frequency band and the unlicensed frequency band are configured separately, the corresponding transmission The parameters are adapted to the transmission characteristics of different carriers, effectively avoiding the misjudgment that the terminal equipment at the receiving end fails to provide feedback due to the failure to seize resources as the failure of the SL link, thereby improving the reliability of SL link management.

相应地，本申请实施例还提供一种侧行链路传输装置，如图6所示，在一种非限制性实施例中，该侧行链路传输装置600包括：第一处理模块601和第一通信模块602。其中：第一处理模块601用于通过第一通信模块602接收第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数；第一处理模块601还用于根据所述第一侧行链路配置信息通过所述第一通信模块602在非授权频段上进行通信。Correspondingly, the embodiment of the present application also provides a sidelink transmission device, as shown in FIG. 6 , in a non-limiting embodiment, thesidelink transmission device 600 includes: afirst processing module 601 and Thefirst communication module 602 . Wherein: thefirst processing module 601 is configured to receive the first sidelink configuration information through thefirst communication module 602, and the first sidelink configuration information is used to configure the transmission parameters of the unlicensed frequency band of the sidelink; Thefirst processing module 601 is further configured to perform communication on an unlicensed frequency band through thefirst communication module 602 according to the first sidelink configuration information.

进一步地，在另一种非限制性实施例中，上述第一处理模块601还用于通过第一通信模块602接收第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数；所述第一处理模块601还用于根据所述第二侧行链路配置信息通过所述第一通信模块602在授权频段上进行通信。Further, in another non-limiting embodiment, the above-mentionedfirst processing module 601 is further configured to receive second sidelink configuration information through thefirst communication module 602, and the second sidelink configuration information uses Thefirst processing module 601 is configured to configure the transmission parameters of the licensed frequency band of the sidelink; thefirst processing module 601 is also configured to communicate on the licensed frequency band through thefirst communication module 602 according to the second sidelink configuration information.

需要说明的是，上述第一处理模块601具体可以是在当前发送载波和/或当前接收载波所在的频段为授权频段的情况下，根据所述第二侧行链路配置信息通过所述通信模块在授权频段上进行通信；和/或在当前发送载波和/或当前接收载波所在的频段为非授权频段的情况下，根据所述第一侧行链路配置信息通过所述通信模块在非授权频段上进行通信。It should be noted that, the above-mentionedfirst processing module 601 may specifically, when the frequency band where the current transmitting carrier and/or the current receiving carrier are located is a licensed frequency band, according to the second sidelink configuration information through the communication module Perform communication on the licensed frequency band; and/or in the case that the frequency band where the current transmitting carrier and/or the current receiving carrier is located is an unlicensed frequency band, according to the first sidelink configuration information through the communication module in the unlicensed communicate on the frequency band.

相应地，本申请实施例还提供一种终端设备，包括上述图6所示的侧行链路传输装置。网络设备可以是核心网设备或基站。Correspondingly, an embodiment of the present application further provides a terminal device, including the sidelink transmission apparatus shown in FIG. 6 above. A network device may be a core network device or a base station.

相应地，本申请实施例还提供一种侧行链路传输装置，如图7所示，在一种非限制性实施例中，该侧行链路传输装置700包括以下各模块：第二处理模块701和第二通信模块702。其中：第二处理模块701用于通过第二通信模块702向终端设备发送第一侧行链路配置信息，所述第一侧行链路配置信息用于配置侧行链路的非授权频段的传输参数。Correspondingly, the embodiment of the present application also provides a sidelink transmission device, as shown in FIG. 7 , in a non-limiting embodiment, thesidelink transmission device 700 includes the following modules: thesecond processing module 701 and asecond communication module 702. Wherein: thesecond processing module 701 is configured to send the first sidelink configuration information to the terminal device through thesecond communication module 702, and the first sidelink configuration information is used to configure the unlicensed frequency band of the sidelink Transfer parameters.

在另一种非限制性实施例中，上述第二处理模块701还用于通过第二通信模块702向所述终端设备发送第二侧行链路配置信息，所述第二侧行链路配置信息用于配置侧行链路的授权频段的传输参数。。In another non-limiting embodiment, thesecond processing module 701 is further configured to send second sidelink configuration information to the terminal device through thesecond communication module 702, the second sidelink configuration The information is used to configure the transmission parameters of the licensed frequency band of the sidelink. .

关于上述第一侧行链路配置信息和第二侧行链路配置信息的形式、内容及发送方式等可参照前面本申请侧行链路传输方法实施例中的描述，在此不再赘述。Regarding the form, content, and transmission method of the above-mentioned first sidelink configuration information and second sidelink configuration information, reference may be made to the description in the foregoing sidelink transmission method embodiment of the present application, and details are not repeated here.

相应地，本申请实施例还提供一种网络设备，包括上述图7所示的侧行链路传输装置。网络设备可以是核心网设备或基站。Correspondingly, an embodiment of the present application further provides a network device, including the sidelink transmission apparatus shown in FIG. 7 above. A network device may be a core network device or a base station.

关于上述各装置的工作原理、工作方式的更多内容，可以参照前面相应的方法实施例中的相关描述，在此不再赘述。For more details about the working principles and working modes of the above-mentioned devices, reference may be made to the relevant descriptions in the corresponding method embodiments above, and details will not be repeated here.

本申请实施例提供的侧行链路传输装置，针对终端设备工作在非授权频段上时需要通过抢占机制获取资源这一特点，对侧行链路的非授权频段的传输参数单独进行配置，从而可以使配置的传输参数分别与非授权频段的传输特性相适配，避免将终端设备在非授权频段因抢占资源失败而无法传输的情况误判为发生了无线链路失败，提高SL链路管理的可靠性。相应地，终端设备在进行侧行链路通信时，可以根据配置的侧行链路的非授权频段的传输参数进行通信。The sidelink transmission device provided by the embodiment of the present application is aimed at the feature that the terminal equipment needs to obtain resources through a preemption mechanism when it works on the unlicensed frequency band, and separately configures the transmission parameters of the unlicensed frequency band of the sidelink, so that The configured transmission parameters can be adapted to the transmission characteristics of the unlicensed frequency band, so as to avoid misjudgment that the terminal device cannot transmit due to failure to seize resources in the unlicensed frequency band as a wireless link failure, and improve SL link management reliability. Correspondingly, when performing sidelink communication, the terminal device may perform communication according to the configured transmission parameters of the unlicensed frequency band of the sidelink.

在具体实施中，上述侧行链路传输装置可以对应于网络设备和/或终端设备中相应功能的芯片，例如SOC(System-On-a-Chip，片上系统)、基带芯片、芯片模组等。In a specific implementation, the above-mentioned sidelink transmission device may correspond to chips with corresponding functions in network equipment and/or terminal equipment, such as SOC (System-On-a-Chip, system on chip), baseband chip, chip module, etc. .

在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。In a specific implementation, regarding each device described in the above embodiments, each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit, partly is a hardware module/unit.

例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。For example, for each device or product applied to or integrated in a chip, each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs, The software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits; /Units can be realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components in the terminal, or at least some modules/units can be implemented in the form of software programs Realization, the software program runs on the processor integrated in the terminal, and the remaining (if any) modules/units can be implemented by means of hardware such as circuits.

本申请实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述各方法实施例中的步骤。The embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program is executed by a processor The steps in the above method embodiments are executed during runtime.

本申请实施例提供的侧行链路传输方法可以通过以下装置来执行：芯片、或者芯片模组、或者通信装置等。The sidelink transmission method provided in the embodiment of the present application may be implemented by the following devices: a chip, or a chip module, or a communication device.

本申请实施例还提供了一种侧行链路传输装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述各方法实施例中的步骤。The embodiment of the present application also provides a sidelink transmission device, including a memory and a processor, the memory stores a computer program that can run on the processor, and when the processor runs the computer program Execute the steps in the above method embodiments.

请参照图8，是本申请实施例提供的电子设备的硬件结构示意图。该电子设备包括处理器801、存储器802和收发器803。Please refer to FIG. 8 , which is a schematic diagram of a hardware structure of an electronic device provided by an embodiment of the present application. The electronic device includes aprocessor 801 , amemory 802 and atransceiver 803 .

处理器801可以是一个通用中央处理器(central processing unit，CPU)、微处理器、特定应用集成电路(application-specific integrated circuit，ASIC)，或者一个或多个用于控制本申请方案程序执行的集成电路。处理器801也可以包括多个CPU，并且处理器801可以是一个单核(single-CPU)处理器，也可以是多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路或用于处理数据(例如计算机程序指令)的处理核。Theprocessor 801 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more for controlling the execution of the application program program integrated circuit. Theprocessor 801 may also include multiple CPUs, and theprocessor 801 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data such as computer program instructions.

存储器802可以是ROM或可存储静态信息和指令的其他类型的静态存储设备、RAM或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compactdisc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，本申请实施例对此不作任何限制。存储器802可以是独立存在(此时，存储器802可以位于该装置外，也可以位于该装置内)，也可以和处理器801集成在一起。其中，存储器802中可以包含计算机程序代码。处理器801用于执行存储器802中存储的计算机程序代码，从而实现本申请实施例提供的方法。Memory 802 can be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, and can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), read-only disc (compactdisc read-only memory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), disk storage The medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, is not limited in this embodiment of the present application. Thememory 802 may exist independently (in this case, thememory 802 may be located outside the device or within the device), or may be integrated with theprocessor 801 . Wherein, thememory 802 may contain computer program codes. Theprocessor 801 is configured to execute computer program codes stored in thememory 802, so as to implement the method provided by the embodiment of the present application.

处理器801、存储器802和收发器803通过总线相连接。收发器803用于与其他设备或通信网络通信。可选的，收发器803可以包括发射机和接收机。收发器803中用于实现接收功能的器件可以视为接收机，接收机用于执行本申请实施例中的接收的步骤。收发器803中用于实现发送功能的器件可以视为发射机，发射机用于执行本申请实施例中的发送的步骤。Theprocessor 801, thememory 802 and thetransceiver 803 are connected through a bus.Transceiver 803 is used to communicate with other devices or a communication network. Optionally, thetransceiver 803 may include a transmitter and a receiver. The device in thetransceiver 803 for implementing the receiving function may be regarded as a receiver, and the receiver is configured to perform the receiving step in the embodiment of the present application. The device in thetransceiver 803 for implementing the sending function may be regarded as a transmitter, and the transmitter is used to perform the sending step in the embodiment of the present application.

当图8所示的结构示意图用于示意上述实施例中所涉及的终端设备的结构时，处理器801用于对终端设备的动作进行控制管理，例如，处理器801用于支持终端设备执行图2或图3或图4或图5中的部分或全部终端设备执行的步骤，和/或本申请实施例中所描述的其他过程中的终端设备执行的动作。处理器801可以通过收发器803与其他网络实体通信，例如，与上述网络设备通信。存储器802用于存储终端设备的程序代码和数据。所述处理器运行所述计算机程序时可以控制所述收发器803接收下行信令或下行数据。When the schematic structural diagram shown in FIG. 8 is used to illustrate the structure of the terminal device involved in the above embodiments, theprocessor 801 is used to control and manage the actions of the terminal device. For example, theprocessor 801 is used to support the terminal device to execute the diagram 2 or some or all of the steps performed by the terminal device in FIG. 3 or FIG. 4 or FIG. 5 , and/or the actions performed by the terminal device in other processes described in the embodiments of this application. Theprocessor 801 may communicate with other network entities through thetransceiver 803, for example, communicate with the aforementioned network devices. Thememory 802 is used to store program codes and data of the terminal device. When the processor runs the computer program, it can control thetransceiver 803 to receive downlink signaling or downlink data.

当图8所示的结构示意图用于示意上述实施例中所涉及的网络设备的结构时，处理器801用于对网络设备的动作进行控制管理，例如，处理器801用于支持网络设备执行图2或图3或图4或图5中的部分或全部网络设备执行的步骤，和/或本申请实施例中所描述的其他过程中的网络设备执行的动作。处理器801可以通过收发器803与其他网络实体通信，例如，与上述终端设备通信。存储器802用于存储网络设备的程序代码和数据。所述处理器运行所述计算机程序时可以控制所述收发器803发送下行数据或下行信令。When the structural diagram shown in FIG. 8 is used to illustrate the structure of the network device involved in the above-mentioned embodiments, theprocessor 801 is used to control and manage the actions of the network device, for example, theprocessor 801 is used to support the network device to execute the diagram 2 or steps performed by some or all of the network devices in FIG. 3 or FIG. 4 or FIG. 5 , and/or actions performed by network devices in other processes described in the embodiments of this application. Theprocessor 801 may communicate with other network entities through thetransceiver 803, for example, communicate with the above-mentioned terminal equipment. Thememory 802 is used to store program codes and data of network devices. When the processor runs the computer program, it can control thetransceiver 803 to send downlink data or downlink signaling.

应理解，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“/“，表示前后关联对象是一种“或”的关系。It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this article indicates that the associated objects are an "or" relationship.

本申请实施例中出现的“多个”是指两个或两个以上。"Multiple" appearing in the embodiments of the present application means two or more.

本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。The first, second, etc. descriptions that appear in the embodiments of this application are only for illustration and to distinguish the description objects. Any limitations of the examples.

本申请所提供的各实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。应理解，在本申请的各种实施例中，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。The various embodiments provided in the present application may be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of computer program products. The computer program product comprises one or more computer instructions or computer programs. When the computer instruction or computer program is loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Wired or wireless transmission to another website site, computer, server or data center. It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，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 this application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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。A unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

另外，在本发明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布置，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be physically arranged separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

虽然本申请披露如上，但本申请并非限定于此。任何本领域技术人员，在不脱离本申请的精神和范围内，均可作各种更动与修改，因此本申请的保护范围应当以权利要求所限定的范围为准。Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be based on the scope defined in the claims.