WO2023051086A1

WO2023051086A1 - Data transmission method, terminal device, and system

Info

Publication number: WO2023051086A1
Application number: PCT/CN2022/113715
Authority: WO
Inventors: 苏宏家; 郭文婷; 卢磊
Original assignee: 华为技术有限公司
Priority date: 2021-09-30
Filing date: 2022-08-19
Publication date: 2023-04-06
Also published as: CN115915474A

Abstract

The present application provides a data transmission method, a terminal device, and a system, capable of avoiding resource collision of unlicensed time-frequency resources and improving reliability of data transmission. The method comprises: performing a channel access procedure, used for sending first data on a time-frequency resource in a first resource pool; determining a resource selection window and a listening window of a second resource pool, a time slot range corresponding to the listening window being before a time slot range corresponding to the resource selection window; determining, according to a listening result of the listening window, a second time-frequency resource available in the second resource pool within the resource selection window; and sending first information to a second terminal device on the second time-frequency resource, the first information comprising first indication information, the first indication information being used for indicating a first time-frequency resource on which the first data is sent, and the second terminal device receiving the first information from a first terminal device on the second time-frequency resource and receiving the first data on the first time-frequency resource according to the first information.

Description

数据传输的方法、终端装置及***Data transmission method, terminal device and system

本申请要求于2021年09月30日提交中国专利局、申请号为202111158368.7、发明名称为“数据传输的方法、终端装置及***”的专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the patent application submitted to the China Patent Office on September 30, 2021, with the application number 202111158368.7, and the title of the invention is "Data transmission method, terminal device and system", the entire content of which is incorporated by reference in this application middle.

技术领域technical field

本申请涉及通信领域，并且更具体地，涉及一种数据传输的方法、终端装置及***。The present application relates to the communication field, and more specifically, to a data transmission method, terminal device and system.

背景技术Background technique

在无线通信***中，按照使用频段的不同，可以分为授权频段和非授权频段。在授权频段中，用户设备基于中心节点的调度使用频谱资源。在***长期演进(the fourth generation long term evolution，4G LTE)***中，蜂窝移动通信开始了对非授权频段的研究工作，催生了LTE在非授权频段(LTE-in unlicensed spectrum，LTE-U)、授权辅助访问(licensed assisted access，LAA)、多重定义(multefire)等技术。其中，第三代合作伙伴计划(3rd generation partnership project，3GPP)组织对LAA进行了标准化，并相继发展出了增强的授权辅助访问(enhanced licensed assisted access，eLAA)和进一步增强的授权辅助访问(further enhanced licensed assisted access，feLAA)，令LTE***有能力基于先听后说(listen-before-talk，LBT)机制与Wi-Fi设备共存，使能非授权频段上的LTE Uu接口通信。在第五代新无线(5th generation new radio，5G NR)***中，非授权频段中的NR协议技术统称为NR-U，3GPP组织期望通过NR-U进一步提升相应的Uu接口通信性能。In a wireless communication system, according to different frequency bands used, it can be divided into licensed frequency bands and unlicensed frequency bands. In the licensed frequency band, the user equipment uses spectrum resources based on the scheduling of the central node. In the fourth generation long term evolution (4G LTE) system, cellular mobile communication began to study the unlicensed frequency band, which gave birth to LTE in the unlicensed frequency band (LTE-in unlicensed spectrum, LTE-U ), authorized assisted access (licensed assisted access, LAA), multiple definitions (multefire) and other technologies. Among them, the 3rd generation partnership project (3rd generation partnership project, 3GPP) organization standardized LAA, and successively developed enhanced licensed assisted access (eLAA) and further enhanced authorized assisted access (further enhanced licensed assisted access (feLAA), enabling the LTE system to coexist with Wi-Fi devices based on the listen-before-talk (LBT) mechanism, enabling LTE Uu interface communication on unlicensed bands. In the fifth generation new radio (5G NR) system, the NR protocol technology in the unlicensed frequency band is collectively referred to as NR-U, and the 3GPP organization expects to further improve the corresponding Uu interface communication performance through NR-U.

在非授权频段中，发射节点需要按照竞争的方式使用频谱资源，具体地，通过LBT的方式竞争信道。LBT机制本质是一种基于随机退避(random back-off)的信道接入规则。UE在接入信道并开始发送数据之前需要侦听信道是否空闲(idle)，如果信道已经保持空闲一定时间则可以占用信道，如果信道非空闲则需要等待信道重新恢复为空闲后，才可以占用信道。In the unlicensed frequency band, the transmitting nodes need to use spectrum resources in a competitive manner, specifically, compete for channels through LBT. The essence of the LBT mechanism is a channel access rule based on random back-off. Before accessing the channel and starting to send data, the UE needs to monitor whether the channel is idle (idle). If the channel has been idle for a certain period of time, it can occupy the channel. If the channel is not idle, it needs to wait for the channel to return to idle before occupying the channel. .

目前，使用基于侦听预约信息的资源选择方案在非授权频段进行通信时，由于受限于LBT的结果，终端设备未必能在预约的时频资源上接入非授权频段，即未必能使用预约的时频资源发送数据。因此，基于侦听预约信息的资源选择方式使用非授权时频资源发送数据可能会导致资源碰撞、数据传输的可靠性降低。At present, when using the resource selection scheme based on interception reservation information to communicate in the unlicensed frequency band, due to the limitation of LBT, the terminal device may not be able to access the unlicensed frequency band on the reserved time-frequency resources, that is, it may not be able to use the reserved time-frequency resources to send data. Therefore, sending data using unauthorized time-frequency resources in a resource selection method based on interception reservation information may lead to resource collisions and reduce the reliability of data transmission.

发明内容Contents of the invention

本申请提供了一种的数据传输的方法、终端装置及***，能够避免非授权时频资源的资源碰撞、提高数据传输的可靠性。The present application provides a data transmission method, terminal device and system, which can avoid resource collision of unlicensed time-frequency resources and improve the reliability of data transmission.

第一方面，提供一种数据传输的方法，该方法可以由终端装置或终端侧的芯片或芯片***执行。该方法包括：执行信道接入流程，用于在第一资源池中的时频资源发送第一数据；确定第二资源池的资源选择窗和侦听窗，所述侦听窗在所述资源选择窗之前；根据在所述侦听窗的侦听结果，确定所述资源选择窗内所述第二资源池中可用的第二时频资源；在所述第二时频资源向第二终端装置发送第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送所述第一数据的第一时频资源。In a first aspect, a data transmission method is provided, and the method may be executed by a terminal device or a chip or a chip system on a terminal side. The method includes: executing a channel access procedure for sending first data on a time-frequency resource in a first resource pool; determining a resource selection window and a listening window of a second resource pool, and the listening window is in Before selecting the window; according to the listening result in the listening window, determine the second time-frequency resource available in the second resource pool in the resource selection window; The device sends first information, where the first information includes first indication information, where the first indication information is used to indicate a first time-frequency resource for sending the first data.

基于上述技术方案，第一终端装置根据LBT确定第二资源池(授权资源)的资源选择窗和侦听窗；根据侦听结果在资源选择窗内第二资源池中可用的第二时频资源向第二终端装置发送第一指示信息，该第一指示信息用于指示在第一资源池(非授权资源)中发送第一数据的第一时频资源。若之前预约的用于发送第一数据的时频资源被其他终端装置占用，则可以在重新确定的第一时频资源发送第一数据，从而避免资源碰撞、提高数据传输的可靠性。Based on the above technical solution, the first terminal device determines the resource selection window and listening window of the second resource pool (authorized resource) according to LBT; the second time-frequency resource available in the second resource pool in the resource selection window according to the listening result Sending first indication information to the second terminal device, where the first indication information is used to indicate the first time-frequency resource for sending the first data in the first resource pool (unauthorized resource). If the previously reserved time-frequency resource for sending the first data is occupied by other terminal devices, the first data may be sent at the newly determined first time-frequency resource, thereby avoiding resource collision and improving reliability of data transmission.

结合第一方面，在第一方面的某些实现方式中，所述确定第二资源池的资源选择窗和侦听窗，包括：根据在第一时隙n ₁时第一计数器的数值N _n1，确定所述资源选择窗，所述第一计数器为根据所述信道接入流程确定的用于发送所述第一数据的计数器，其中，所述第一时隙在所述资源选择窗之前，0＜N _n1≤N _init，N _init是所述第一计数器的初始值；根据所述资源选择窗确定所述侦听窗。 With reference to the first aspect, in some implementation manners of the first aspect, the determining the resource selection window and the listening window of the second resource pool includes: according to the value N _n1 of the first counter at the first time slot n ₁ , determining the resource selection window, the first counter is a counter for sending the first data determined according to the channel access procedure, wherein the first time slot is before the resource selection window, 0<N _n1 ≤N _init , where N _init is an initial value of the first counter; the listening window is determined according to the resource selection window.

结合第一方面，在第一方面的某些实现方式中，所述资源选择窗的时隙范围为[n ₁+T′ ₁,n ₁+T′ ₂]，其中，T′ ₁和T′ ₂满足如下公式： With reference to the first aspect, in some implementation manners of the first aspect, the time slot range of the resource selection window is [n ₁ +T′ ₁ , n ₁ +T′ ₂ ], where T′ ₁ and T′ ₂ satisfies the following formula:

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

为大于零的正整数。 in,

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

is a positive integer greater than zero.

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

为大于零的正整数，T _BWP为部分带宽的切换时延或载波的切换时延。 in,

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

is a positive integer greater than zero, and T _BWP is the switching delay of a part of the bandwidth or the switching delay of the carrier.

结合第一方面，在第一方面的某些实现方式中，

其中，T _d为侦听所述第一时频资源是否空闲的延长持续时间，T _sl为侦听时隙时段，m与发送所述第一数据所使用的子载波间隔的大小相关。 In combination with the first aspect, in some implementations of the first aspect,

Wherein, T _d is an extended duration for monitoring whether the first time-frequency resource is idle, T _sl is a time slot period for monitoring, and m is related to the size of the subcarrier interval used for sending the first data.

结合第一方面，在第一方面的某些实现方式中，所述侦听窗的时隙范围为

其中，

是确定所述资源选择窗的时延，

是处理所述侦听窗的侦听结果的时延，T ₀用于确定所述侦听窗的长度。 With reference to the first aspect, in some implementation manners of the first aspect, the time slot range of the listening window is

in,

is the time delay for determining the resource selection window,

is the time delay for processing the interception result of the interception window, and T ₀ is used to determine the length of the interception window.

结合第一方面，在第一方面的某些实现方式中，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：N _n1；第一时隙偏移值信息，用于指示

与发送所述第一信息的时隙的时隙差值；第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；第一位置信息，用于指示第一终端装置的地理位置；第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；第一装置标识信息，用于标识所述第一终端装置；或，第一资源池标识信息，用于指示所述第一资源池。 With reference to the first aspect, in some implementation manners of the first aspect, the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information: N _n1 ; Gap offset value information, used to indicate

The time slot difference from the time slot for sending the first information; first channel occupancy time information, used to indicate the channel occupancy time used to send the first data; first location information, used to indicate the first terminal The geographic location of the device; first data identification information, used to identify the sending source and/or sending destination of the first data; first device identification information, used to identify the first terminal device; or, the first resource Pool identification information, used to indicate the first resource pool.

结合第一方面，在第一方面的某些实现方式中，所述方法还包括：在第三时频资源向所述第二终端装置发送第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源。应理解，第四时频资源为在发送第一信息之前预约的用于发送第一数据的时频资源，第一信息将用于发送第一数据的第四时频资源更新为第一时频资源。With reference to the first aspect, in some implementations of the first aspect, the method further includes: sending second information to the second terminal device in a third time-frequency resource, where the second information includes third indication information , the third indication information is used to indicate a fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, and the fourth time-frequency resource is in the first time-frequency resource Before resources, the third time-frequency resource is a time-frequency resource in the second resource pool. It should be understood that the fourth time-frequency resource is a time-frequency resource reserved before sending the first information for sending the first data, and the first information updates the fourth time-frequency resource for sending the first data to the first time-frequency resource. resource.

结合第一方面，在第一方面的某些实现方式中，所述方法还包括：根据所述第一信息，向所述第二终端装置发送侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。应理解，非激活时间为终端设备进入休眠状态的时间，第二终端装置可以根据第一信息在第四时频资源包含的时隙进入休眠状态，从而可以节省第二终端装置的功耗。With reference to the first aspect, in some implementations of the first aspect, the method further includes: sending sidelink discontinuous reception configuration information to the second terminal device according to the first information, the sidelink discontinuous reception configuration information, the sidelink The uplink discontinuous reception configuration information indicates that the inactivation time of the sidelink discontinuous reception includes the time slot included in the fourth time-frequency resource. It should be understood that the inactive time is the time when the terminal device enters the dormant state, and the second terminal device may enter the dormant state in the time slot included in the fourth time-frequency resource according to the first information, thereby saving power consumption of the second terminal device.

第二方面，提供了一种数据传输的方法，该方法可以由终端装置或终端侧的芯片或芯片***执行。该方法包括：在第二时频资源接收来自第一终端装置的第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送第一数据的第一时频资源，所述第一时频资源为第一资源池中的时频资源，所述第二时频资源为第二资源池中的时频资源；根据所述第一信息，在所述第一时频资源接收所述第一数据。In a second aspect, a data transmission method is provided, and the method may be executed by a terminal device or a chip or a chip system on the terminal side. The method includes: receiving first information from a first terminal device at a second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate the first time-frequency for sending the first data resource, the first time-frequency resource is a time-frequency resource in the first resource pool, and the second time-frequency resource is a time-frequency resource in the second resource pool; according to the first information, in the first The time-frequency resource receives the first data.

基于上述技术方案，第一终端装置根据LBT确定第二资源池(授权资源)的资源选择窗和侦听窗；根据侦听结果在资源选择窗内第二资源池中可用的第二时频资源向第二终端装置发送第一指示信息，该第一指示信息用于指示在第一资源池(非授权资源)中发送第一数据的第一时频资源；第二终端装置在第一终端装置指示的第一时频资源接收第一数据。若之前预约的用于发送第一数据的时频资源被其他终端装置占用，则可以在重新确定的第一时频资源接收第一数据，从而提高数据传输的可靠性。Based on the above technical solution, the first terminal device determines the resource selection window and listening window of the second resource pool (authorized resource) according to LBT; the second time-frequency resource available in the second resource pool in the resource selection window according to the listening result Sending first indication information to the second terminal device, where the first indication information is used to indicate the first time-frequency resource for sending the first data in the first resource pool (unauthorized resource); the second terminal device is in the first terminal device The indicated first time-frequency resource receives first data. If the previously reserved time-frequency resource for sending the first data is occupied by other terminal devices, the first data may be received at the newly determined first time-frequency resource, thereby improving the reliability of data transmission.

结合第二方面，在第二方面的某些实现方式中，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：在第一时隙n ₁时第一计数器的数值N _n1，所述第一计数器为用于确定所述第一时频资源的计数器，所述第一时隙在所述第二时频资源包含的时隙之前；第一时隙偏移值信息，用于指示所述第一计数器的数值等于零时所在的时隙

与发送所述第一信息的时隙的时隙差值；第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；第一位置信息，用于指示第一终端装置的地理位置；第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；第一装置标识信息，用于标识所述第一终端装置；或，第一资源池标识信息，用于指示所述第一资源池。 With reference to the second aspect, in some implementation manners of the second aspect, the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information: in the first time slot n When ₁ is the value N _n1 of the first counter, the first counter is a counter used to determine the first time-frequency resource, and the first time slot is before the time slot included in the second time-frequency resource; Time slot offset value information, used to indicate the time slot where the value of the first counter is equal to zero

结合第二方面，在第二方面的某些实现方式中，所述根据所述第一信息，在所述第一时频资源接收所述第一数据，包括：根据所述第一信道占用时间信息，确定第一唤醒时间段，所述第一唤醒时间段包括所述第一时频资源包含的全部时隙；在所述第一时频资源接收所述第一数据。第二终端装置根据第一终端装置发送的第一信息，在第一唤醒时间段唤醒以接收第一数据，可以及时调整接收状态/休眠状态，从而提高数据传输的可靠性、节省功耗。With reference to the second aspect, in some implementation manners of the second aspect, the receiving the first data at the first time-frequency resource according to the first information includes: according to the first channel occupancy time information, determining a first wake-up time period, where the first wake-up time period includes all time slots included in the first time-frequency resource; and receiving the first data in the first time-frequency resource. According to the first information sent by the first terminal device, the second terminal device wakes up in the first wake-up period to receive the first data, and can adjust the receiving state/sleep state in time, thereby improving the reliability of data transmission and saving power consumption.

结合第二方面，在第二方面的某些实现方式中，所述方法还包括：在第三时频资源接收来自第一终端装置的第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源；根据所述第一信息，在所述第四时频资源包含的时隙休眠。应理解，第四时频资源为在发送第一信息之前预约的用于发送第一数据的时频资源，第一信息将用于发送第一数据的第四时频资源更新为第一时频资源。With reference to the second aspect, in some implementations of the second aspect, the method further includes: receiving second information from the first terminal device at a third time-frequency resource, where the second information includes third indication information, The third indication information is used to indicate a fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, and the fourth time-frequency resource is in the first time-frequency resource Before, the third time-frequency resource is a time-frequency resource in the second resource pool; according to the first information, sleep in a time slot included in the fourth time-frequency resource. It should be understood that the fourth time-frequency resource is a time-frequency resource reserved before sending the first information for sending the first data, and the first information updates the fourth time-frequency resource for sending the first data to the first time-frequency resource. resource.

结合第二方面，在第二方面的某些实现方式中，所述方法还包括：获取侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时段包括所述第四时频资源包含的时隙。应理解，非激活时间为终端设备进入休眠状态的时间，第二终端装置可以根据第一信息在第四时频资源包含的时隙进入休眠状态，从而可以节省第二终端装置的功耗。With reference to the second aspect, in some implementations of the second aspect, the method further includes: acquiring sidelink discontinuous reception configuration information, where the sidelink discontinuous reception configuration information indicates that the sidelink discontinuous reception configuration information indicates that the sidelink discontinuous reception The inactive period of continuous reception includes time slots included in the fourth time-frequency resource. It should be understood that the inactive time is the time when the terminal device enters the dormant state, and the second terminal device may enter the dormant state in the time slot included in the fourth time-frequency resource according to the first information, thereby saving power consumption of the second terminal device.

第三方面，提供了一种第一终端装置，此第一终端装置可执行第一方面提供的方法，第一终端装置具体包括：处理单元，用于执行信道接入流程，用于在第一资源池中的时频资源发送第一数据；确定单元，用于确定第二资源池的资源选择窗和侦听窗，所述侦听窗在所述资源选择窗之前；所述确定单元还用于，根据在所述侦听窗的侦听结果，确定所述资源选择窗内所述第二资源池中可用的第二时频资源；收发单元，用于在所述第二时频资源向第二终端装置发送第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送所述第一数据的第一时频资源。A third aspect provides a first terminal device, the first terminal device can execute the method provided in the first aspect, the first terminal device specifically includes: a processing unit, configured to execute a channel access procedure, configured to The time-frequency resources in the resource pool send the first data; the determining unit is configured to determine the resource selection window and the listening window of the second resource pool, and the listening window is before the resource selection window; the determining unit also uses According to the listening result in the listening window, determine the second time-frequency resource available in the second resource pool in the resource selection window; the transceiver unit is configured to transmit the second time-frequency resource to The second terminal device sends first information, where the first information includes first indication information, where the first indication information is used to indicate a first time-frequency resource for sending the first data.

结合第三方面，在第三方面的某些实现方式中，所述确定单元具体用于：根据在第一时隙n ₁时第一计数器的数值N _n1，确定所述资源选择窗，所述第一计数器为根据所述信道接入流程确定的用于发送所述第一数据的计数器，其中，所述第一时隙在所述资源选择窗之前，0＜N _n1≤N _init，N _init是所述第一计数器的初始值；根据所述资源选择窗确定所述侦听窗。 With reference to the third aspect, in some implementation manners of the third aspect, the determining unit is specifically configured to: determine the resource selection window according to the value N _n1 of the first counter at the first time slot n ₁ , the The first counter is a counter for sending the first data determined according to the channel access procedure, where the first time slot is before the resource selection window, 0<N _n1 ≤ N _init , N _init is the initial value of the first counter; the listening window is determined according to the resource selection window.

结合第三方面，在第三方面的某些实现方式中，所述资源选择窗的时隙范围为[n ₁+T′ ₁,n ₁+T′ ₂]，其中，T′ ₁和T′ ₂满足如下公式： With reference to the third aspect, in some implementation manners of the third aspect, the time slot range of the resource selection window is [n ₁ +T′ ₁ , n ₁ +T′ ₂ ], where T′ ₁ and T′ ₂ satisfies the following formula:

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

为大于零的正整数。 in,

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

is a positive integer greater than zero.

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

结合第三方面，在第三方面的某些实现方式中，

其中，T _d为侦听所述第一时频资源是否空闲的延长持续时间，T _sl为侦听时隙时段，m与发送所述第一数据所使用的子载波间隔的大小相关。 In combination with the third aspect, in some implementations of the third aspect,

结合第三方面，在第三方面的某些实现方式中，所述侦听窗的时隙范围为

其中，

是确定所述资源选择窗的时延，

是处理所述侦听窗的侦听结果的时延，T ₀用于确定所述侦听窗的长度。 With reference to the third aspect, in some implementation manners of the third aspect, the time slot range of the listening window is

in,

is the time delay for determining the resource selection window,

结合第三方面，在第三方面的某些实现方式中，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：N _n1；第一时隙偏移值信息，用于指示

与发送所述第一信息的时隙的时隙差值；第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；第一位置信息，用于指示所述第一终端装置的地理位置；第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；第一装置标识信息，用于标识所述第一终端装置；或，第一资源池标识信息，用于指示所述第一资源池。 With reference to the third aspect, in some implementation manners of the third aspect, the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information: N _n1 ; Gap offset value information, used to indicate

The time slot difference from the time slot for sending the first information; first channel occupancy time information, used to indicate the channel occupancy time used to send the first data; first location information, used to indicate the first channel occupancy time The geographic location of a terminal device; the first data identification information, used to identify the sending source and/or the sending destination of the first data; the first device identification information, used to identify the first terminal device; or, Resource pool identification information, used to indicate the first resource pool.

结合第三方面，在第三方面的某些实现方式中，所述收发单元还用于，在第三时频资源向所述第二终端装置发送第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源。With reference to the third aspect, in some implementation manners of the third aspect, the transceiver unit is further configured to send second information to the second terminal device on a third time-frequency resource, where the second information includes the third indication information, the third indication information is used to indicate a fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, and the fourth time-frequency resource is in the first resource pool Before the time-frequency resource, the third time-frequency resource is a time-frequency resource in the second resource pool.

结合第三方面，在第三方面的某些实现方式中，所述收发单元还用于，根据所述第一信息，向所述第二终端装置发送侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。With reference to the third aspect, in some implementation manners of the third aspect, the transceiver unit is further configured to, according to the first information, send sidelink discontinuous reception configuration information to the second terminal device, so that The sidelink discontinuous reception configuration information indicates that the inactivation time of the sidelink discontinuous reception includes the time slot included in the fourth time-frequency resource.

第四方面，提供了一种第二终端装置，此第二终端装置可执行第二方面提供的方法，第二终端装置具体包括：收发单元，用于在第二时频资源接收来自第一终端装置的第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送第一数据的第一时频资源，所述第一时频资源为第一资源池中的时频资源，所述第二时频资源为第二资源池中的时频资源；所述收发单元还用于，根据所述第一信息，在所述第一时频资源接收所述第一数据。In a fourth aspect, a second terminal device is provided, and the second terminal device can execute the method provided in the second aspect, and the second terminal device specifically includes: a transceiver unit configured to receive a message from the first terminal in a second time-frequency resource First information of the device, where the first information includes first indication information, and the first indication information is used to indicate the first time-frequency resource for sending the first data, and the first time-frequency resource is the first time-frequency resource in the first resource pool time-frequency resource, the second time-frequency resource is a time-frequency resource in the second resource pool; the transceiver unit is further configured to, according to the first information, receive the first time-frequency resource in the first time-frequency resource a data.

结合第四方面，在第四方面的某些实现方式中，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：在第一时隙n ₁时第一计数器的数值N _n1，所述第一计数器为用于确定所述第一时频资源的计数器，所述第一时隙在所述第二时频资源包含的时隙之前；第一时隙偏移值信息，用于指示所述第一计数器的数值等于零时所在的时隙

与发送所述第一信息的时隙的时隙差值；第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；第一位置信息，用于指示第一终端装置的地理位置；第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；第一装置标识信息，用于标识所述第一终端装置；或，第一资源池标识信息，用于指示所述第一资源池。 With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information: in the first time slot n When ₁ is the value N _n1 of the first counter, the first counter is a counter used to determine the first time-frequency resource, and the first time slot is before the time slot included in the second time-frequency resource; Time slot offset value information, used to indicate the time slot where the value of the first counter is equal to zero

结合第四方面，在第四方面的某些实现方式中，所述第二终端装置还包括：确定单元，用于根据所述第一信道占用时间信息，确定第一唤醒时间段，所述第一唤醒时间段包括所述第一时频资源包含的全部时隙；所述收发单元还用于，在所述第一时频资源接收所述第一数据。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the second terminal device further includes: a determining unit, configured to determine a first wake-up time period according to the first channel occupancy time information, and the first A wake-up period includes all time slots included in the first time-frequency resource; the transceiver unit is further configured to receive the first data in the first time-frequency resource.

结合第四方面，在第四方面的某些实现方式中，所述收发单元还用于，在第三时频资源接收来自第一终端装置的第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源；所述第二终端装置还包括：处理单元，用于根据所述第一信息，在所述第四时频资源包含的时隙休眠。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is further configured to receive second information from the first terminal device at a third time-frequency resource, where the second information includes a third indication information, the third indication information is used to indicate a fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, and the fourth time-frequency resource is in the first time-frequency resource Before the frequency resource, the third time-frequency resource is a time-frequency resource in the second resource pool; the second terminal device further includes: a processing unit configured to, according to the first information, in the fourth The time-slot dormancy included in the time-frequency resource.

结合第四方面，在第四方面的某些实现方式中，所述收发单元还用于，获取侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时段包括所述第四时频资源包含的时隙。第五方面，提供一种通信装置，包括：处理器，所述处理器与至少一个存储器耦合，所述处理器用于读取所述至少一个存储器所存储的计算机程序，以执行以上第一方面或第一方面的任意可能的实现方式中的方法，或执行以上第二方面或第二方面的任意可能的实现方式中的方法。With reference to the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is further configured to acquire sidelink discontinuous reception configuration information, where the sidelink discontinuous reception configuration information indicates the sidelink discontinuous reception configuration information The inactive period of the discontinuous reception includes the time slot included in the fourth time-frequency resource. In a fifth aspect, a communication device is provided, including: a processor, the processor is coupled to at least one memory, and the processor is configured to read a computer program stored in the at least one memory to execute the above first aspect or The method in any possible implementation manner of the first aspect, or execute the method in the above second aspect or any possible implementation manner of the second aspect.

第五方面，提供了一种计算机可读存储介质，所述计算机可读介质存储有计算机程序；所述计算机程序在计算机上运行时，使得计算机执行第一方面或第二方面任意可能的实现方式中的方法。In a fifth aspect, a computer-readable storage medium is provided, the computer-readable medium stores a computer program; when the computer program runs on a computer, the computer executes any possible implementation of the first aspect or the second aspect method in .

第六方面，提供一种计算机程序产品，当其在计算机上运行时，使得该计算机执行上述第一方面至第二方面或其任意一种可能的实现方式中的方法。According to a sixth aspect, a computer program product is provided, which, when running on a computer, causes the computer to execute the method in the first aspect to the second aspect or any possible implementation thereof.

第七方面，提供了一种芯片，包括：处理器和通信接口，所述处理器用于读取指令或计算机程序以执行上述第一方面或第二方面的任一种可能的实现方式中的方法。In a seventh aspect, there is provided a chip, including: a processor and a communication interface, the processor is used to read instructions or computer programs to execute the method in any possible implementation of the first aspect or the second aspect above .

第八方面，提供了一种通信***，包括第一方面所述方法中的第一终端装置，以及包括第二方面所述方法中的第二的终端装置。An eighth aspect provides a communication system, including the first terminal device in the method of the first aspect, and the second terminal device in the method of the second aspect.

以上第三方面至第八方面及其可能的设计的有益效果可参照第一或第二方面及其可能的设计中的有益效果。The beneficial effects of the above third to eighth aspects and their possible designs can refer to the beneficial effects of the first or second aspect and their possible designs.

附图说明Description of drawings

图1是逻辑时隙示意图。Figure 1 is a schematic diagram of a logical time slot.

图2是本申请实施例适用的通信场景示意图。FIG. 2 is a schematic diagram of a communication scenario applicable to an embodiment of the present application.

图3是一种交错RB的示意图。FIG. 3 is a schematic diagram of an interleaved RB.

图4是本申请实施例提供的一种数据传输方法的示意性流程交互图。Fig. 4 is a schematic flowchart interaction diagram of a data transmission method provided by an embodiment of the present application.

图5是一种确定资源选择窗和侦听窗的示意图。Fig. 5 is a schematic diagram of determining a resource selection window and a listening window.

图6至图9是一个时隙中第一计数器的数值的示意图。6 to 9 are schematic diagrams of values of the first counter in a time slot.

图10是本申请实施例的一种通信装置的示意性框图。Fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.

图11是本申请实施例的另一种通信装置的示意性框图。Fig. 11 is a schematic block diagram of another communication device according to an embodiment of the present application.

图12是本申请实施例的另一种通信装置的示意性框图。Fig. 12 is a schematic block diagram of another communication device according to an embodiment of the present application.

具体实施方式Detailed ways

下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below with reference to the accompanying drawings.

以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

1)终端装置，例如是终端设备，或者是用于实现终端设备的功能的模块，例如芯片***，该芯片***可以设置在终端设备中。终端设备包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、V2X终端设备、机器到机器/ 机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备。最典型的，终端装置可以为车辆或终端型路边单元，或内置于车辆或路边单元的通信模块或芯片。1) A terminal device, such as a terminal device, or a module for implementing functions of the terminal device, such as a system-on-a-chip, and the system-on-a-chip may be set in the terminal device. Terminal equipment includes equipment that provides voice and/or data connectivity to users, specifically, equipment that provides voice to users, or equipment that provides data connectivity to users, or equipment that provides voice and data connectivity to users . Examples may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The terminal device can communicate with the core network via a radio access network (radio access network, RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN. The terminal device may include user equipment (user equipment, UE), wireless terminal device, mobile terminal device, device-to-device communication (device-to-device, D2D) terminal device, V2X terminal device, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, and Internet of Things (IoT) terminal equipment. Most typically, the terminal device can be a vehicle or terminal type roadside unit, or a communication module or chip built into the vehicle or roadside unit.

本申请实施例中，终端设备之间支持直接通信(PC5)接口通信，即支持通过侧行链路进行传输。In the embodiment of the present application, direct communication (PC5) interface communication is supported between terminal devices, that is, transmission through a sidelink is supported.

作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes wait. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。The various terminal devices described above, if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal devices. ).

本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。In this embodiment of the present application, the terminal device may further include a relay (relay). Or it can be understood that all devices capable of performing data communication with the base station can be regarded as terminal devices.

2)网络设备，是终端设备通过无线方式接入到该移动通信***中的接入设备，包括无线接入网(radio access network，RAN)设备，例如基站。网络设备也可以是指在空口与终端设备通信的设备。网络设备可以包括LTE***或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(evolved Node B)，可简称为eNB或e-NodeB)。eNB是一种部署在无线接入网中满足***移动通信技术(the fourth generation，4G)标准的为终端设备提供无线通信功能的装置。网络设备还可以是新无线控制器(new radio controller，NR controller)，可以是5G***中的(gNode B，gNB)，可以是集中式网元(centralized unit)，可以是新无线基站，可以是射频拉远模块，可以是微基站(也称为小站)，可以是中继(relay)，可以是分布式网元(distributed unit)，可以是各种形式的宏基站，可以是传输接收点(transmission reception point，TRP)、传输测量功能(transmission measurement function，TMF)或传输点(transmission point，TP)或者任何其它无线接入设备，本申请实施例不限于此。网络设备也可以包括无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)或射频拉远单元(remote radio unit，RRU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)，或者在云无线接入网(cloud radio access netowrk，CRAN)中的基带池(BBU pool)和RRU等。本申请的实施例对网络设备所使用的具体技术和具体设备形态不做限定。网络设备在4G***中可以对应eNB，在5G***中对应gNB。2) A network device is an access device for a terminal device to access the mobile communication system through wireless means, including a radio access network (radio access network, RAN) device, such as a base station. A network device may also refer to a device that communicates with a terminal device over an air interface. The network equipment may include an evolved base station (evolved Node B) in the LTE system or long term evolution-advanced (LTE-A), which may be referred to as eNB or e-NodeB for short). An eNB is a device deployed in a radio access network that meets the standards of the fourth generation mobile communication technology (the fourth generation, 4G) and provides wireless communication functions for terminal equipment. The network device can also be a new wireless controller (new radio controller, NR controller), it can be a (gNode B, gNB) in the 5G system, it can be a centralized network element (centralized unit), it can be a new wireless base station, it can be a The radio remote module can be a micro base station (also called a small station), a relay, a distributed unit, various forms of macro base stations, or a transmission and receiving point (transmission reception point, TRP), transmission measurement function (transmission measurement function, TMF) or transmission point (transmission point, TP) or any other wireless access device, the embodiment of the present application is not limited thereto. The network equipment may also include a radio network controller (radio network controller, RNC), a node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU) or remote radio unit (remote radio unit, RRU), or wireless fidelity (wireless fidelity, Wifi) access point (access point, AP), or the baseband pool (BBU pool) and RRU in the cloud radio access network (cloud radio access netowrk, CRAN). The embodiment of the present application does not limit the specific technology and specific device form used by the network device. Network equipment can correspond to eNB in the 4G system, and correspond to gNB in the 5G system.

另外，本申请实施例中的基站可以包括集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，多个DU可以由一个CU集中控制。CU和DU可以根据其具备的无线网络的协议层功能进行划分，例如分组数据汇聚协议(packet data convergence protocol，PDCP)层及以上协议层的功能设置在CU，PDCP以下的协议层，例如无线链路控制(radio link control，RLC)层和介质访问控制(medium access control，MAC)层等的功能设置在DU。需要说明的是，这种协议层的划分仅仅是一种举例，还可以在其它协议层划分。射频装置可以拉远，不放在DU中，也可以集成在DU中，或者部分拉远部分集成在DU中，本申请实施例不作任何限制。另外，在一些实施例中，还可以将CU的控制面(control plan，CP)和用户面(user plan，UP)分离，分成不同实体来实现，分别为控制面CU实体(CU-CP实体)和用户面CU实体(CU-UP实体)。在该网络架构中，CU产生的信令可以通过DU发送给终端设备，或者UE产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装而透传给终端设备或CU。在该网络架构中，将CU划分为RAN侧的网络设备，此外，也可以将CU划分作为核心网(core network，CN)侧的网络设备，本申请对此不做限制。In addition, the base station in this embodiment of the present application may include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU), and multiple DUs may be centrally controlled by one CU. The CU and DU can be divided according to the protocol layer functions of the wireless network they have. For example, the functions of the packet data convergence protocol (packet data convergence protocol, PDCP) layer and the protocol layer above are set in the protocol layer below the CU and PDCP, such as the wireless link Functions such as the radio link control (radio link control, RLC) layer and the medium access control (medium access control, MAC) layer are set in the DU. It should be noted that the division of such protocol layers is only an example, and may also be divided in other protocol layers. The radio frequency device can be remote, not placed in the DU, or integrated in the DU, or partially remote and partially integrated in the DU, which is not limited in this embodiment of the present application. In addition, in some embodiments, the control plane (control plan, CP) and the user plane (user plan, UP) of the CU can also be separated and divided into different entities for implementation, respectively being the control plane CU entity (CU-CP entity) And user plane CU entity (CU-UP entity). In this network architecture, the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the UE can be sent to the CU through the DU. The DU can directly transmit the signaling to the terminal device or CU through protocol layer encapsulation without analyzing the signaling. In this network architecture, the CU is classified as a network device on the RAN side. In addition, the CU may also be classified as a network device on the core network (core network, CN) side, which is not limited in this application.

3)侧行通信传输模式。终端装置和终端装置之间进行侧行通信，拥有两种传输模式，分别为受网络设备调度模式(通常称为传输模式1，transmission mode 1)和用户自主资源选择模式(通常称为传输模式2,transmission mode 2)。3) Lateral communication transmission mode. There are two transmission modes for side communication between terminal devices and terminal devices, which are scheduled by network equipment mode (usually called transmission mode 1, transmission mode 1) and user autonomous resource selection mode (usually called transmission mode 2 ,transmission mode 2).

在网络覆盖范围下，终端装置通过接收网络设备的***消息块(system information block，SIB)、小区级(cell-specific)的无线资源控制(radio resource control，RRC)信令或者终端装置用户级(UE-specific)RRC信令获得侧行链路(sidelink，SL)资源池(resource pool)配置信息。终端装置也可以使用设备出厂预配置的SL资源池配置信息，例如，在没有网络覆盖范围时。SL资源池配置信息用于指示SL资源池，资源池是时频资源的集合用于UE之间进行侧行通信。资源池可以包括码域资源。资源池的资源用于包括终端装置发送和接收以下至少一种物理信道的资源，如PSCCH，PSSCH，PSDCH，PSFCH，PSBCH等，PSSCH所承载的业务类型可以包括单播、组播和/或广播通信类型。其中，PSCCH用于承载SCI，PSSCH用于承载控制信息、数据、侧行CSI反馈信息等至少一种；PSDCH用于承载发现消息；PSFCH用于侧行反馈信息，侧行反馈信息可以用于对数据信息的混合自动重传请求(hybrid automatic repeat request，HARQ)应答反馈信息，例如确认应答(acknowledge，ACK)或否定应答(negative acknowledge，NACK)，还可以包括信道状态指示(channel state information，CSI)反馈信息，还可以用于指示如下至少一种信息，例如，节能信息、资源辅助信息，资源辅助信息包括推荐使用的资源、不推荐使用的资源、资源碰撞、资源预约冲突、过去发生了或未来即将发生半双工冲突等；PSBCH用于承载侧行同步先关的信息。Under the coverage of the network, the terminal device receives the system information block (system information block, SIB) of the network equipment, the cell-specific radio resource control (radio resource control, RRC) signaling or the terminal device user level ( UE-specific) RRC signaling to obtain sidelink (sidelink, SL) resource pool (resource pool) configuration information. The terminal device may also use the SL resource pool configuration information pre-configured in the factory, for example, when there is no network coverage. The SL resource pool configuration information is used to indicate the SL resource pool, and the resource pool is a collection of time-frequency resources for sidelink communication between UEs. A resource pool may include code domain resources. The resources in the resource pool are used to include resources for the terminal device to send and receive at least one of the following physical channels, such as PSCCH, PSSCH, PSDCH, PSFCH, PSBCH, etc., and the service types carried by the PSSCH can include unicast, multicast and/or broadcast communication type. Among them, the PSCCH is used to carry SCI, the PSSCH is used to carry at least one of control information, data, and sidelink CSI feedback information, etc.; the PSDCH is used to carry discovery messages; the PSFCH is used for sideline feedback information, and the sideline feedback information can be used for Hybrid automatic repeat request (HARQ) response feedback information of data information, such as acknowledgment (acknowledge, ACK) or negative acknowledgment (negative acknowledgment, NACK), can also include channel state indication (channel state information, CSI ) feedback information, which can also be used to indicate at least one of the following information, for example, energy saving information, resource assistance information, resource assistance information includes recommended resources, not recommended resources, resource collisions, resource reservation conflicts, past occurrences or Half-duplex conflicts will occur in the future; PSBCH is used to carry the information of side line synchronization first off.

在SL资源池的时域上，包括一个或多个时间单元，时间单元可以为一个或若干个符号、一个或若干个时隙(slot)，一个或若干个微时隙(mini-slot)、一个或若干个子帧，或，一个或若干个帧等。一个或多个时间单元可以是在时间上连续的，也可以是离散的。应理解，在一个资源池内时域单元是逻辑上连续的。In the time domain of the SL resource pool, it includes one or more time units, and the time unit can be one or several symbols, one or several time slots (slot), one or several mini-slots (mini-slot), One or several subframes, or one or several frames, etc. One or more time units can be continuous in time or discrete. It should be understood that the time domain units in a resource pool are logically continuous.

一个资源池内所包含的时隙是逻辑上连续的，这些时隙称为逻辑时隙。如图1所示，出示了逻辑时隙示意图，其中时隙1至时隙8在时间上是连续的时隙，称这些时隙为物理时隙(physical slot)。一个资源池，被配置在时域包括时隙1，时隙3，时隙5和时隙8，尽管在时间上，这些时隙没有全部连续，但从该资源池的角度而言，其所包括这些时隙是相对连续的，称这些时隙称为逻辑时隙(logical slot)。时隙1’，时隙2’，时隙3’和时隙4’分别是物理时隙1，物理时隙3，物理时隙5和物理时隙8在该资源池的所对应的逻辑时隙。在SL资源池的频域上，包括一个或多个频域单元，频域单元可以是一个资源元素(resource element，RE)，若干个RE，一个资源块(resource block，RB)、若干个RB、一个子信道(sub channel)、若干个子信道。子信道的大小，即表示一个子信道包括一个或多个在频域上连续的(continuous)或交错的(interlaced)RB数量，可以是10、12、15、20、25或50等整数。The time slots included in a resource pool are logically continuous, and these time slots are called logical time slots. As shown in FIG. 1 , a schematic diagram of logical time slots is shown, wherein time slots 1 to 8 are consecutive time slots in time, and these time slots are called physical time slots (physical slots). A resource pool is configured to include time slot 1, time slot 3, time slot 5, and time slot 8 in the time domain. Although these time slots are not all consecutive in time, from the perspective of the resource pool, all of them These time slots are relatively continuous, and these time slots are called logical slots. Time slot 1', time slot 2', time slot 3' and time slot 4' are respectively physical time slot 1, physical time slot 3, physical time slot 5 and physical time slot 8 in the logical time slot corresponding to the resource pool Gap. In the frequency domain of the SL resource pool, it includes one or more frequency domain units. The frequency domain unit can be a resource element (resource element, RE), several REs, a resource block (resource block, RB), and several RBs , a sub channel, and several sub channels. The size of the subchannel means that one subchannel includes one or more continuous or interlaced RBs in the frequency domain, and may be an integer such as 10, 12, 15, 20, 25 or 50.

随着无线通信技术的发展，人们对高数据速率和用户体验的需求日益增长，同时人们对了解周边人或事物并与之通信的邻近服务的需求逐渐增加，因此，设备到设备(device-to-device，D2D)技术应运而生。D2D技术的应用，可以减轻蜂窝网络的负担、减少用户设备的电池功耗、提高数据速率，并能很好地满足邻近服务的需求。D2D技术允许多个支持D2D功能的用户设备(user equipment，UE)在有网络基础设施或无网络基础设施的情况下进行直接通信，在第三代合作伙伴项目(the 3rd Generation Partnership Project，3GPP)定义的无线通信网络中，用户和用户直接通信的空口(air interface)为PC5，所以也称为PC5通信；从链路的角度，定义用户和用户直接通信的链路为侧行链路，也可以称为sidelink通信。With the development of wireless communication technology, people's demand for high data rate and user experience is increasing, and at the same time, people's demand for proximity services that understand and communicate with people or things around them is gradually increasing. Therefore, device-to-device (device-to-device) -device, D2D) technology came into being. The application of D2D technology can reduce the burden of the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and can well meet the requirements of proximity services. D2D technology allows multiple D2D-enabled user equipment (user equipment, UE) to communicate directly with or without network infrastructure. In the 3rd Generation Partnership Project (3GPP) In the defined wireless communication network, the air interface (air interface) for direct communication between users is PC5, so it is also called PC5 communication; from the perspective of links, the link for direct communication between users is defined as a sidelink link, also Can be called sidelink communication.

sidelink通信的应用场景也包括车联网应用场景，例如，车与任何事物通信(vehicle-to-everything，简称为V2X)场景。V2X通信是指车辆与外界的任何事物的通信，包括车与车的通信(vehicle to vehicle，V2V)、车与行人的通信(vehicle to pedestrian，V2P)、车与基础设施的通信(vehicle to infrastructure，V2I)、车与网络的通信(vehicle to network，V2N)。V2X通信针对以车辆为代表的高速设备，是未来对通信时延要求非常高的场景下应用的基础技术和关键技术，如智能汽车、自动驾驶、智能交通运输***等场景。V2X通信可以支持有网络覆盖和无网络覆盖的通信场景，其资源分配方式可以采取网络接入设备调度模式，如演进通用陆地无线接入网节点B(E-UTRAN Node B，eNB)调度模式和UE自选资源模式。The application scenarios of the sidelink communication also include the application scenarios of the Internet of Vehicles, for example, the vehicle-to-everything (V2X for short) scenario. V2X communication refers to the communication between vehicles and anything outside, including vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), vehicle-to-infrastructure (vehicle-to-infrastructure) communication. , V2I), vehicle-to-network communication (vehicle to network, V2N). V2X communication is aimed at high-speed equipment represented by vehicles. It is the basic technology and key technology applied in scenarios that require very high communication delays in the future, such as smart cars, autonomous driving, and intelligent transportation systems. V2X communication can support communication scenarios with and without network coverage, and its resource allocation method can adopt the network access device scheduling mode, such as the Evolved Universal Terrestrial Radio Access Network Node B (E-UTRAN Node B, eNB) scheduling mode and UE self-selected resource mode.

基于V2X技术，车辆用户(vehicle UE，简称为V-UE)能将自身的一些信息，例如位置、速度、转弯、并线、倒车等信息周期性以及一些非周期性的事件触发的信息向周围的V-UE发送，同样地V-UE也会实时接收周围用户的信息。Based on V2X technology, the vehicle user (vehicle UE, referred to as V-UE) can send some of its own information, such as position, speed, turning, merging, reversing and other information periodically and some aperiodic event-triggered information to the surrounding The V-UE sent by the V-UE will also receive the information of the surrounding users in real time.

3GPP先后标准化了基于LTE技术的LTE V2X和基于NR技术的NR V2X，共同作为蜂窝车辆网(cellular-V2X，C-V2X)的自动驾驶技术，其中LTE V2X支持基础安全自动驾驶；NR-V2X还可以支持高级业务自动驾驶，即支持更低的传输时延、更可靠的通信传输、更高的吞吐量、更好的用户体验，满足更加广泛的应用场景需求。3GPP has successively standardized LTE V2X based on LTE technology and NR V2X based on NR technology, which are jointly used as the automatic driving technology of cellular vehicle network (cellular-V2X, C-V2X). Among them, LTE V2X supports basic safe automatic driving; NR-V2X also It can support advanced business autonomous driving, that is, support lower transmission delay, more reliable communication transmission, higher throughput, and better user experience, and meet the needs of a wider range of application scenarios.

进一步地，V2X所支持的车辆到车辆的通信技术，可以延伸应用到任何***下sidelink通信/D2D通信，其应用场景也包括智能终端之间的通信等商用场景，例如手机和可穿戴设备之间的通信，AR/VR头盔或眼镜和智能屏幕之间的通信，传感器之间的通信等等。Furthermore, the vehicle-to-vehicle communication technology supported by V2X can be extended and applied to sidelink communication/D2D communication under any system, and its application scenarios also include commercial scenarios such as communication between smart terminals, such as between mobile phones and wearable devices Communication between AR/VR helmets or glasses and smart screens, communication between sensors, and more.

sidelink通信可以支持有网络覆盖和无网络覆盖的通信场景，如图2出示了出示了本申请实施例适用的通信场景示意图。图2(a)和图2(b)所示的第一终端装置在有网络覆盖的场景下，第一终端装置通过sidelink通信进行发送时的资源分配方式可以采取网络设备调度模式。例如，通过网络设备调度发送的终端装置进行侧行链路通信所采用的资源，该资源可称为授权资源或授权频段。图2(c)所示的第一终端装置无网络覆盖场景下，或虽然有网络覆盖但第一终端装置未采用网络设备调度模式的情况下，可由第一终端装置进行资源的自选，即从资源池中选择用于侧行链路通信的资源，该资源可称为非授权资源或非授权频段。应理解，本申请中的资源是指时频资源。sidelink通信使用的频谱可以是非授权频段、授权频段和/或专用频段。Sidelink communication can support communication scenarios with and without network coverage, and FIG. 2 shows a schematic diagram of a communication scenario applicable to the embodiment of the present application. In the scenario where the first terminal device shown in FIG. 2(a) and FIG. 2(b) has network coverage, the resource allocation mode when the first terminal device transmits through sidelink communication may adopt the network device scheduling mode. For example, the resource used by the terminal device to perform sidelink communication through scheduling and sending by the network device may be referred to as an authorized resource or an authorized frequency band. In the scenario shown in Figure 2(c) where the first terminal device has no network coverage, or the first terminal device does not adopt the network equipment scheduling mode although there is network coverage, the first terminal device can perform self-selection of resources, that is, from A resource selected for sidelink communication in the resource pool may be called an unlicensed resource or an unlicensed frequency band. It should be understood that resources in this application refer to time-frequency resources. The spectrum used for sidelink communication may be an unlicensed frequency band, a licensed frequency band and/or a dedicated frequency band.

SL资源池配置信息还可以包括PSCCH的配置信息，PSCCH的配置信息包括一个时隙中PSCCH所占用的符号的数量和一个子信道中PSCCH所占用的RB个数。SL带宽部分(bandwidth part，BWP)配置信息可以包括SL资源池信息，用于配置BWP内包括的资源池的个数。SL BWP配置信息可以包括SL带宽信息，用于指示进行SL通信的带宽大小，例如指示SL带宽为20兆赫兹(MHz)。需要注意的是，本发明所描述的带宽部分或BWP，凡是用于SL通信的，在没有特殊说明时，均表示SL-BWP。The SL resource pool configuration information may also include PSCCH configuration information, and the PSCCH configuration information includes the number of symbols occupied by the PSCCH in a time slot and the number of RBs occupied by the PSCCH in a subchannel. SL bandwidth part (bandwidth part, BWP) configuration information may include SL resource pool information, which is used to configure the number of resource pools included in the BWP. The SL BWP configuration information may include SL bandwidth information, which is used to indicate the size of the bandwidth for SL communication, for example, indicating that the SL bandwidth is 20 megahertz (MHz). It should be noted that the bandwidth part or BWP described in the present invention, which is used for SL communication, means SL-BWP unless otherwise specified.

SL BWP配置信息还可以包括SL的符号信息，用于指示一个时隙上起始的SL符号位置和所占用的连续的SL符号的个数。SL BWP配置信息还可以包括SL的子载波间隔和循环前缀信息，用于指示SL通信所使用的子载波间隔和循环前缀。循环前缀指示扩展循环前缀或正常循环前缀。在一种可能的配置中，SL BWP配置信息还可以包括SL资源池配置信息。本申请中，除非特殊说明时间单元的含义，均用时隙进行描述，但不限于时间单位只为时隙；除非特殊说明时频域单元的含义，均用子信道进行描述，但不限于频域单位只为子信道。The SL BWP configuration information may also include SL symbol information, which is used to indicate the starting SL symbol position on a time slot and the number of occupied continuous SL symbols. The SL BWP configuration information may also include SL subcarrier spacing and cyclic prefix information, which is used to indicate the subcarrier spacing and cyclic prefix used for SL communication. Cyclic prefix indicates extended cyclic prefix or normal cyclic prefix. In a possible configuration, the SL BWP configuration information may also include SL resource pool configuration information. In this application, unless the meaning of the time unit is specifically stated, it is described with a time slot, but not limited to the time unit is only a time slot; unless the meaning of the time-frequency domain unit is specified, it is described with a sub-channel, but not limited to the frequency domain Units are subchannels only.

考虑陆地无线接入网络和用户设备(UTRAN-to-UE，Uu)空口传输，无线通信的双方包括网络设备和用户通信设备；考虑SL空口传输，无线通信的收发端都是用户通信设备。在***架构图中，网络设备在传统通用移动通信***(universal mobile telecommunications system，UMTS)/长期演进(long term evolution，LTE)无线通信***中可以是传统宏基站(evolved node B，eNB)，在异构网络(heterogeneous network，HetNet)场景下可以是微基站eNB，在分布式基站场景可以是基带处理单元(base band unit，BBU)和射频拉远单元(remote radio unit，RRU)，在云无线接入网(cloud radio access netowrk，CRAN)场景下可以是基带池(BBU pool)和射频单元，在未来无线通信***中可以是gNB。用户通信设备可以是车载通信模块或其它嵌入式通信模块，也可以是用户手持通信设备，包括手机，平板电脑、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)头盔/眼镜等。Considering terrestrial radio access network and user equipment (UTRAN-to-UE, Uu) air interface transmission, the two parties of wireless communication include network equipment and user communication equipment; considering SL air interface transmission, the transceiver end of wireless communication is user communication equipment. In the system architecture diagram, the network device can be a traditional macro base station (evolved node B, eNB) in a traditional universal mobile telecommunications system (UMTS)/long term evolution (LTE) wireless communication system. In the heterogeneous network (heterogeneous network, HetNet) scenario, it can be a micro base station eNB. In the distributed base station scenario, it can be a base band unit (base band unit, BBU) and a remote radio unit (remote radio unit, RRU). In the cloud radio access netowrk (CRAN) scenario, it can be a baseband pool (BBU pool) and a radio frequency unit, and it can be a gNB in a future wireless communication system. The user communication device can be a vehicle communication module or other embedded communication modules, or a user handheld communication device, including mobile phones, tablet computers, augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) helmets/glasses, etc. .

在无线通信***中，按照使用频段的不同，可以分为授权频段和非授权频段。在授权频段中，用户设备基于中心节点的调度使用频谱资源。在4G LTE***中，蜂窝移动通信开始了对非授权频段的研究工作，催生了LTE在非授权频段(LTE-in unlicensed spectrum，LTE-U)、授权辅助访问(licensed assisted access，LAA)、多重定义(multefire)等技术。其中，3GPP组织对LAA进行了标准化，并相继发展出了增强的授权辅助访问(enhanced licensed assisted access，eLAA)和进一步增强的授权辅助访问(further enhanced licensed assisted access，feLAA)，令LTE***有能力基于先听后说(listen-before-talk，LBT)机制与Wi-Fi设备共存，使能非授权频段上的LTE Uu接口通信。在新一代5G NR***中，非授权频段中的NR协议技术统称为NR-U，3GPP组织期望通过NR-U进一步提升相应的Uu接口通信性能。在局域空间内使能非授权频段的SL通信是一个重要演进方向，相应协议技术可以统称为SL-U。与Uu接口类似，通过SL-U工作的UE也需要基于LBT机制与附近的Wi-Fi设备共存。In a wireless communication system, according to different frequency bands used, it can be divided into licensed frequency bands and unlicensed frequency bands. In the licensed frequency band, the user equipment uses spectrum resources based on the scheduling of the central node. In the 4G LTE system, cellular mobile communication has started the research work on the unlicensed frequency band, which gave birth to LTE in the unlicensed frequency band (LTE-in unlicensed spectrum, LTE-U), licensed assisted access (licensed assisted access, LAA), multiple Define (multefire) and other technologies. Among them, the 3GPP organization standardized LAA, and successively developed enhanced licensed assisted access (eLAA) and further enhanced licensed assisted access (feLAA), making the LTE system capable of Coexist with Wi-Fi devices based on the listen-before-talk (LBT) mechanism, enabling LTE Uu interface communication on unlicensed frequency bands. In the new generation of 5G NR system, the NR protocol technology in the unlicensed frequency band is collectively called NR-U, and the 3GPP organization expects to further improve the corresponding Uu interface communication performance through NR-U. Enabling SL communication in unlicensed frequency bands in the local space is an important evolution direction, and the corresponding protocol technologies can be collectively referred to as SL-U. Similar to the Uu interface, UEs working through SL-U also need to coexist with nearby Wi-Fi devices based on the LBT mechanism.

在非授权频段中，发射节点需要按照竞争的方式使用频谱资源，具体地，通过LBT的方式竞争信道。LBT机制本质是一种基于随机退避(random back-off)的信道接入规则。UE在接入信道并开始发送数据之前需要侦听信道是否空闲(idle)，如果信道已经保持空闲一定时间则可以占用信道，如果信道非空闲则需要等待信道重新恢复为空闲后，才可以占用信道。之所以LTB机制会成为非授权频段的必选特性，是因为世界各个地区对于非授权频段的使用有法规(regulation)要求。工作于不同通信协议的各种形态的UE，只有满足法规才能使用非授权频段，进而相对公平、高效地使用频谱资源。In the unlicensed frequency band, the transmitting nodes need to use spectrum resources in a competitive manner, specifically, compete for channels through LBT. The essence of the LBT mechanism is a channel access rule based on random back-off. Before accessing the channel and starting to send data, the UE needs to monitor whether the channel is idle (idle). If the channel has been idle for a certain period of time, it can occupy the channel. If the channel is not idle, it needs to wait for the channel to return to idle before occupying the channel. . The reason why the LTB mechanism will become a mandatory feature of the unlicensed frequency band is that there are regulatory requirements for the use of the unlicensed frequency band in various regions of the world. UEs of various forms working on different communication protocols can only use unlicensed frequency bands if they meet the regulations, so as to use spectrum resources relatively fairly and efficiently.

LBT接入方式一般采用基于能量的检测和信号类型的检测，比如NR-U就是采用能量的检测，而wifi采用两种相结合的检测方法。基于能量的检测需要设定一个能量检测门限(energy detection threshold)，当检测的能量低于检测门限时，如果持续超过一段时间后，则允许接入信道。根据国家和地区对于使用非授权频段的法规要求，以5GHz频段为例，接入20MHz的一个信道，需要满足至少最小占用信道带宽(occupied channel bandwidth，OCB)的要求，才可以占用信道，一般最小OCB要至少是正常带宽的80％。以20MHz为例，即至少需要占用16MHz的带宽才可以抢占该20MHz信道。LBT access methods generally use energy-based detection and signal type detection. For example, NR-U uses energy detection, while wifi uses a combination of two detection methods. Energy-based detection needs to set an energy detection threshold (energy detection threshold). When the detected energy is lower than the detection threshold, if it lasts for more than a period of time, access to the channel is allowed. According to the national and regional regulations on the use of unlicensed frequency bands, taking the 5GHz frequency band as an example, access to a channel of 20MHz must meet at least the minimum occupied channel bandwidth (OCB) requirements before the channel can be occupied, generally the minimum OCB should be at least 80% of normal bandwidth. Taking 20MHz as an example, it is necessary to occupy at least 16MHz of bandwidth to preempt the 20MHz channel.

交错的RB是离散的RB的其中一种形式。例如，一个信道或一个BWP或一个资源池或一个资源池中的子信道所包含的多个RB是交错的，指该子信道所包含的任意相邻的两个RB之间至少间隔一个不属于该子信道的RB。具体地，定义交错资源(interlace)为：一个信道或一个BWP或一个资源池或一个资源池中的子信道可以包括M个交错资源，其中第m个交错资源(m∈{0,1,…,M-1})包括的交错的RB的序号为{m,M+m,2M+m,3M+m,…}一般情况，一个交错资源包括至少10个交错的RB。一个交错资源包括的交错的RB的个数也可以少于10个，这里不做限定。M的取值和子载波间隔(sub carrier spacing，SCS)有关。如图3所示，出示了一种交错RB的示意图，当使用15千赫兹(kHz)SCS时，M的取值可以为10；当使用30kHz SCS时，M的取值可以为5。Interleaved RBs are one form of discrete RBs. For example, multiple RBs contained in a channel or a BWP or a resource pool or a subchannel in a resource pool are interleaved, which means that there is at least one interval between any adjacent two RBs contained in the subchannel that does not belong to RB for this subchannel. Specifically, an interlace resource (interlace) is defined as: a channel or a BWP or a resource pool or a subchannel in a resource pool may include M interlace resources, where the mth interlace resource (m∈{0,1,... ,M-1}) the sequence numbers of the interleaved RBs included are {m, M+m, 2M+m, 3M+m,...} Generally, one interleaved resource includes at least 10 interleaved RBs. The number of interleaved RBs included in one interleaving resource may also be less than 10, which is not limited here. The value of M is related to subcarrier spacing (sub carrier spacing, SCS). As shown in FIG. 3 , a schematic diagram of an interleaved RB is shown. When a 15 kilohertz (kHz) SCS is used, the value of M can be 10; when a 30 kHz SCS is used, the value of M can be 5.

为了满足法规，LBT机制一般划分为如下四类：In order to meet the regulations, LBT mechanisms are generally divided into the following four categories:

一类LBT(category 1 LBT)：category 1 LBT简称cat 1 LBT。在短暂的转换间隔(switching gap)后立即发送。用于通信设备在信道占用时间(channel occupancy time，COT)中由接收状态到发送状态的转换间隔后立即进行发送。其中，COT指通信设备在成功接入信道后允许占用信道的时间；转换间隔的时间不能大于16us。A class of LBT (category 1 LBT): category 1 LBT is referred to as cat 1 LBT. Sent immediately after a short switching gap. It is used for the communication device to send immediately after the transition interval from the receiving state to the sending state in the channel occupancy time (Channel Occupancy Time, COT). Among them, COT refers to the time allowed for the communication device to occupy the channel after successfully accessing the channel; the switching interval cannot be greater than 16us.

二类LBT(category 2 LBT)：无随机退避的LBT，简称cat 2 LBT，用于通信设备在侦听到信道处于空闲状态并持续一段确定时间后，不进行随机退避就可以进行发送。Category 2 LBT (category 2 LBT): LBT without random backoff, referred to as cat 2 LBT, is used for communication equipment to send without random backoff after detecting that the channel is idle for a certain period of time.

三类LBT(category 3 LBT)：有固定大小竞争窗口(contention window)的随机退避的LBT。简称cat 3 LBT，用于通信设备基于固定大小的竞争窗口产生随机数N，并在侦听到信道处于空闲状态且持续一段根据随机数N确定的时间后可以进行发送。其中，竞争窗口的大小与N的最小值与最大值有关。Three types of LBT (category 3 LBT): LBT with random backoff with a fixed-size contention window. Abbreviated as cat 3 LBT, it is used for communication equipment to generate a random number N based on a fixed-size competition window, and can send it after detecting that the channel is idle for a period of time determined according to the random number N. Wherein, the size of the competition window is related to the minimum value and maximum value of N.

四类LBT(Category 4 LBT)：有可变大小竞争窗口的随机退避的LBT。简称cat 4 LBT，用于通信设备基于可变大小的竞争窗口产生随机数N，并在侦听到信道处于空闲状态且持续一段根据随机数N确定的时间后可以进行发送。其中，竞争窗口的大小与N的最小值与最大值有关，该通信设备可以改变竞争窗口的大小。Category 4 LBT (Category 4 LBT): LBT with random backoff with variable-sized contention windows. Abbreviated as cat 4 LBT, it is used for communication equipment to generate a random number N based on a variable-sized contention window, and can send it after detecting that the channel is idle for a period of time determined according to the random number N. Wherein, the size of the contention window is related to the minimum value and maximum value of N, and the communication device can change the size of the contention window.

NR-U设备遵循3GPP协议，采用LBT机制作为信道接入方法。具体地，NR-U设备使用如下几个类型的LBT：NR-U equipment follows the 3GPP protocol and uses the LBT mechanism as the channel access method. Specifically, NR-U equipment uses the following types of LBT:

一、Type 1 LBT：Cat 4 LBT。NR-U设备需要进行随机退避后才能接入信道并发送数据。1. Type 1 LBT: Cat 4 LBT. The NR-U device needs to perform random backoff before it can access the channel and send data.

具体地，网络设备或终端设备可以在一段延长持续时间(defer sensing，记作T _d)的侦听时隙时段(sensing slot duration，记作T _sl)首次侦听信道为空闲之后，并且在如下步骤4中的计数器N为零之后，发起传输。具体地，根据以下步骤，通过侦听信道以获得额外的侦听时隙来调整计数器的数值N： Specifically, the network device or the terminal device may first sense that the channel is idle after a sensing slot duration (sensing slot duration, denoted as T _sl ) of a prolonged duration (defer sensing, denoted as T _d ), and as follows After the counter N in step 4 is zero, the transmission is initiated. Specifically, according to the following steps, the value N of the counter is adjusted by monitoring the channel to obtain an additional listening time slot:

(1)设置N的初始值为N _init，其中N _init为均匀分布在0和CW _p之间的随机数，执行步骤(4)； (1) The initial value of N is set to N _init , wherein N _init is a random number uniformly distributed between 0 and CW _p , and step (4) is performed;

(2)如果N>0，网络设备或终端设备调整递减计数器的数值，N＝N-1；(2) If N>0, the network device or terminal device adjusts the value of the down counter, N=N-1;

(3)侦听信道以获得额外的侦听时隙时段，如果额外的侦听时隙时段的信道是空闲的，则转至步骤(4)；否则，转至步骤(5)；(3) Listen to the channel to obtain an additional listening time slot period, if the channel of the additional listening time slot period is idle, then go to step (4); otherwise, go to step (5);

(4)如果N＝0，停止；否则，执行步骤(2)；(4) If N=0, stop; otherwise, execute step (2);

(5)侦听信道，直到在另一个T _d内侦听到信道繁忙或侦听到另一个T _d内所有侦听时隙时段都被检测为信道空闲； (5) Listening to the channel until the channel is detected to be busy in another _Td or all the listening time slot periods in another _Td are detected as channel idle;

(6)如果在另一个T _d内的侦听时隙时段都检测到信道空闲，则执行步骤(4)；否则，执行步骤(5)。 (6) If it is detected that the channel is idle during the listening time slot period within another T _d , then perform step (4); otherwise, perform step (5).

T _d包括持续时间T _f＝16us以及紧随其后的m _p个连续的侦听时隙时段。 T _d includes a duration of T _f =16 us followed by m _p consecutive listening slot periods.

CW _min，p≤CW _p≤CW _max，p为竞争窗口。应理解，在上述步骤(1)之前选择CW _min，p和T _m _cot，p、CW _min，p和CW _max，p是基于网络设备或终端设备传输相关联的信道接入优先级等级p确定的。如下表1所示。 CW _{min, p} ≤ CW _p ≤ CW _{max, p} is the competition window. It should be understood that the selection of CW _{min, p} and T _m _{cot, p} , CW _{min, p} and CW _{max, p} before the above step (1) is determined based on the channel access priority level p associated with network equipment or terminal equipment transmission of. As shown in Table 1 below.

表1Table 1

网络设备或终端设备在信道上传输的信道占用时间(channel occupancy time，COT)不超过T _m _cot，p，其中，信道接入过程是基于网络设备或终端设备传输相关联的信道接入优先级等级p执行的。 The channel occupancy time (channel occupancy time, COT) of the network device or terminal device transmitting on the channel does not exceed T _m _{cot, p} , wherein the channel access process is based on the channel access priority associated with the network device or terminal device transmission Grade p is performed.

网络设备或终端设备维护竞争窗口值CW _p，并在上述步骤(1)之前根据以下步骤调整CW _p的取值： The network device or terminal device maintains the competition window value CW _p , and adjusts the value of CW _p according to the following steps before the above step (1):

1)对于每个优先级类p∈{1,2,3,4}，设置CW _p＝CW _min，p； 1) For each priority class p ∈ {1,2,3,4}, set CW _p = CW _min,p ;

2)网络设备或终端设备在参考子帧k中发送的数据所对应的反馈混合式自动重传请求(hybrid automatic repeat request，HARQ)-肯定确认(acknowledgement，ACK)值中，如果至少Z＝80％被确定为否定确认(negative acknowledgement，NACK)，则将每个优先级类p∈{1,2,3,4}所对应的CW _p增加到下一个较高的允许值，在步骤2)中使用；否则，执行步骤1)。其中，参考子帧k是网络设备或终端设备在信道上最近的传输的起始子帧。 2) In the feedback hybrid automatic repeat request (hybrid automatic repeat request, HARQ)-positive acknowledgment (acknowledgment, ACK) value corresponding to the data sent by the network device or terminal device in the reference subframe k, if at least Z=80 % is determined to be a negative acknowledgment (NACK), then increase the CW _p corresponding to each priority class p ∈ {1,2,3,4} to the next higher allowed value, in step 2) used in ; otherwise, go to step 1). Wherein, the reference subframe k is the start subframe of the latest transmission by the network device or the terminal device on the channel.

二、Type 2A LBT：25us间隔的Cat 2 LBT。NR-U设备在侦听到信道空闲25us后就可以接入信道并发送数据。2. Type 2A LBT: Cat 2 LBT with 25us interval. The NR-U device can access the channel and send data after detecting that the channel is idle for 25us.

三、Type 2B LBT：16us间隔的Cat 2 LBT。NR-U设备在侦听到信道空闲16us后就可以接入信道并发送数据。3. Type 2B LBT: Cat 2 LBT with 16us interval. The NR-U device can access the channel and send data after detecting that the channel is idle for 16us.

四、Type 2C LBT：至多16us间隔的Cat 1 LBT。NR-U设备不需要侦听信道，在COT内经过至多16us的转换间隔后可以直接接入信道并发送数据。4. Type 2C LBT: Cat 1 LBT with up to 16us interval. The NR-U device does not need to listen to the channel, and can directly access the channel and send data after a conversion interval of up to 16us in the COT.

从执行LBT的设备类型角度，当NR-U设备和WiFi共存时，可以作为基于负载的设备(load based equipment，LBE)工作，其在任意时间点都可以进行信道侦听和竞争接入，而不需要考虑帧边界。除了支持作为LBE工作外还支持作为基于帧的设备(frame based equipment，FBE)工作。此时，NR-U设备仅允许在***内同步的帧边界上通过信道的竞争接入取得COT，此处的“帧”表示固定帧周期(fixed frame period，FFP)，具体周期值由无线资源控制(radio resource control，RRC)信令配置，当前协议支持的周期值可以为1ms、2ms、2.5ms、4ms、5ms和10ms，均可以整除2个无线帧持续时间。From the perspective of the type of equipment performing LBT, when NR-U equipment and WiFi coexist, it can work as a load based equipment (LBE), which can perform channel monitoring and contention access at any point in time, while There is no need to consider frame boundaries. In addition to supporting work as LBE, it also supports work as frame based equipment (FBE). At this time, the NR-U device is only allowed to obtain COT through channel contention access on the synchronized frame boundary in the system. The "frame" here means fixed frame period (fixed frame period, FFP), and the specific period value is determined by the wireless resource. Control (radio resource control, RRC) signaling configuration, the cycle value supported by the current protocol can be 1ms, 2ms, 2.5ms, 4ms, 5ms and 10ms, all of which can be divisible by 2 radio frame durations.

为了便于对本申请技术方案的理解，对现有技术中利用授权频段的资源或专用频段的资源进行数据传输进行简单介绍。In order to facilitate the understanding of the technical solution of the present application, a brief introduction is given to data transmission in the prior art using resources of a licensed frequency band or resources of a dedicated frequency band.

终端设备在时隙n(slot n)时刻触发Mode 2资源分配，进行侦听和资源选择，用于发送数据，具体步骤为：The terminal device triggers Mode 2 resource allocation at time slot n (slot n), and performs listening and resource selection for sending data. The specific steps are:

步骤1：确定资源选择窗[n ₁+T′ ₁,n ₁+T′ ₂]，

T _2min≤T ₂≤PDB，其中，PDB表示数据包的延时，

是终端设备的处理资源选择和数据发送的时延。 Step 1: Determine the resource selection window [n ₁ +T′ ₁ ,n ₁ +T′ ₂ ],

T _2min ≤T ₂ ≤PDB, where PDB represents the delay of the data packet,

is the processing resource selection and data transmission delay of the terminal equipment.

步骤2：确定侦听窗

是终端设备的处理侦听结果的时延。 Step 2: Determine the Listening Window

is the delay for the terminal device to process the listening result.

步骤3：确定参考信号接收功率(reference signal received power，RSRP)的门限值，RSRP的门限值和待发送数据的prio _TX和接收到的侧行链路控制信息(sidelink control information，SCI)所指示的优先级prio _TX有关，具体为资源池配置的RSRP门限值集合中的第prio _RX+(prio _TX-1)*8个序号(index)对应的RSRP门限值。 Step 3: Determine the reference signal received power (reference signal received power, RSRP) threshold value, the threshold value of RSRP and the prio _TX of the data to be sent and the received sidelink control information (sidelink control information, SCI) The indicated priority prio _TX is related to, specifically, the RSRP threshold value corresponding to the prio _RX + (prio _TX -1)*8 sequence number (index) in the RSRP threshold value set configured in the resource pool.

步骤4：初始化可用资源集合S _A为资源选择窗中所有的时频资源单元，其中，一个时频资源单元可以为一个时隙和一个子信道。 Step 4: Initialize the available resource set _SA as all time-frequency resource units in the resource selection window, where a time-frequency resource unit can be a time slot and a subchannel.

步骤5：满足以下全部条件时，从S _A中排除以下时频资源： Step 5: When all the following conditions are met, exclude the following time-frequency resources from _SA :

a)侦听窗中未侦听的时隙，即终端设备处于发送状态的时隙；由于受限于半双工的收发机，当终端设备处于发送状态时，则无法接收，因此不能侦听该发送时隙；a) The unlistened time slot in the listening window, that is, the time slot when the terminal device is in the sending state; due to the limitation of the half-duplex transceiver, when the terminal device is in the sending state, it cannot receive, so it cannot be listened to the sending slot;

b)假设该时隙有其他终端设备发送SCI，该SCI指示周期资源预约，该周期资源预约所对应的在选择窗内的时隙上的全部子信道。该SCI所使用的周期资源预约值包括所有的资源池配置的周期预约值。b) It is assumed that other terminal devices send SCI in this time slot, and the SCI indicates periodic resource reservation, and the periodic resource reservation corresponds to all subchannels on the time slot in the selection window. The periodic resource reservation value used by the SCI includes the periodic reservation values configured in all resource pools.

如果S _A排除的时频资源少于资源选择窗总资源的x％，重新执行上述步骤4的初始化。 If the time-frequency resources excluded by _SA are less than x% of the total resources in the resource selection window, re-execute the initialization in step 4 above.

步骤6：满足以下全部条件时，从S _A排除以下时频资源： Step 6: When all the following conditions are met, exclude the following time-frequency resources from S _A :

c)接收的第一级SCI译码成功；c) The received first-level SCI is decoded successfully;

d)该接收的第一级SCI所预约的用于传输物理层侧行链路共享信道(physical sidelink shared channel，PSSCH)时频资源所包括的PSSCH解调参考符号(de-modulation reference signal，DMRS)进行RSRP测量，其RSRP结果高于步骤3确定的RSRP门限值，其中， PSSCH时频资源包括周期预约的时频资源、TRVI和FRVI预约的时频资源；d) The PSSCH demodulation reference symbol (de-modulation reference signal, DMRS) included in the time-frequency resource for transmitting the physical sidelink shared channel (PSSCH) reserved by the received first-level SCI ) performing RSRP measurement, and the RSRP result is higher than the RSRP threshold value determined in step 3, wherein the PSSCH time-frequency resources include periodically reserved time-frequency resources, TRVI and FRVI reserved time-frequency resources;

e)该接收的第一级SCI所预约的时频资源(包括连续多个周期的预约和TRVI和FRVI的预约)在资源选择窗内的；e) The time-frequency resources reserved by the received first-level SCI (including reservations for multiple consecutive cycles and reservations for TRVI and FRVI) are within the resource selection window;

步骤7：如果S _A中剩余的资源少于资源选择窗总资源的x％，x的取值由资源池配置，则通过提升步骤3所确定RSRP门限的方式，例如RSRP门限每次提升3dB，直至满足S _A中剩余的资源不小于资源选择窗总资源的x％。 Step 7: If the remaining resources in _SA are less than x% of the total resources in the resource selection window, and the value of x is configured by the resource pool, then by raising the RSRP threshold determined in step 3, for example, the RSRP threshold is increased by 3dB each time, Until S is satisfied, the remaining resources in _A are not less than x% of the total resources in the resource selection window.

在S _A中随机选择时频资源(r ₀,r ₁,r ₂,…)用于发送数据，在发送之前对(r ₀,r ₁,r ₂,…)进行资源重评估，重评估后，从S _A中选择的资源(r′ ₀,r′ _1,r′ ₂,…)进行抢占检测。 In _SA , time-frequency resources (r ₀ , r ₁ , r ₂ ,…) are randomly selected for sending data, and resources are re-evaluated for (r ₀ , r ₁ , r ₂ ,…) before sending, and after re-evaluation , the resources (r′ ₀ , r′ _1, r′ ₂ ,…) selected from S _A are preempted.

用户设备在至少时隙

时刻进行资源重评估和抢占检测，UE可以基于实现在时隙m-T ₃前后额外触发进行资源重评估和/或抢占检测。确定(r ₀,r ₁,r ₂,…)和(r′ ₀,r′ ₁,r′ ₂,…)是否需要被排除的方式和步骤1-7相同。如果(r ₀,r ₁,r ₂,…)和(r′ ₀,r′ ₁,r′ ₂,…)中的r _i和/或r′ _i不属于S _A(即r _i和r′ _i分别在重评估和/或抢占检测时被排除)，则对r _i和/或r′ _i进行重新选择。其中，时隙m为下一个要发送的时隙，即时隙m属于(r ₀,r ₁,r ₂,…)和(r′ ₀,r′ ₁,r′ ₂,…)。 User equipment in at least time slot

Resource re-evaluation and preemption detection are performed at all times, and the UE may additionally trigger resource re-evaluation and/or preemption detection before and after time slot mT ₃ based on the implementation. The method of determining whether (r ₀ ,r ₁ ,r ₂ ,…) and (r′ ₀ ,r′ ₁ ,r′ ₂ ,…) needs to be excluded is the same as that of steps 1-7. If r _i and/or r′ i in (r ₀ ,r ₁ ,r ₂ ,…) and (r′ ₀ ,r′ ₁ ,r′ ₂ ,… ₎ do not belong to S _A (that is, r _i and r′ _i is excluded during re-evaluation and/or preemption detection respectively), then re-select ri _and /or r' _i . Wherein, the time slot m is the time slot to be sent next, that is, the time slot m belongs to (r ₀ , r ₁ , r ₂ ,...) and (r' ₀ , r' ₁ , r' ₂ ,...).

使用基于侦听预约信息的资源选择方案在非授权频段进行通信时，由于受限于LBT的结果，终端设备未必能在预约的时频资源上接入非授权频段，即未必能使用预约的时频资源发送数据。因此，基于侦听预约信息的资源选择方式使用非授权时频资源发送数据可能会导致资源碰撞、数据传输的可靠性降低。When using the resource selection scheme based on interception reservation information to communicate in the unlicensed frequency band, due to the limitation of LBT, the terminal device may not be able to access the unlicensed frequency band on the reserved time-frequency resources, that is, it may not be able to use the reserved time-frequency resources. The frequency resource sends data. Therefore, sending data using unauthorized time-frequency resources in a resource selection method based on interception reservation information may lead to resource collisions and reduce the reliability of data transmission.

为此本申请实施例提出了一种数据传输的方法，能够避免非授权时频资源的资源碰撞、提高数据传输的可靠性。For this reason, the embodiment of the present application proposes a data transmission method, which can avoid resource collision of unlicensed time-frequency resources and improve the reliability of data transmission.

如图4所示，出示了本申请实施例提供的一种数据传输方法400的示意性流程交互图。As shown in FIG. 4 , a schematic flow interaction diagram of a data transmission method 400 provided by an embodiment of the present application is shown.

410，第一终端装置获得资源池配置信息，资源池配置信息指示第一资源池和第二资源池；该资源池配置信息可以是网络设备配置或预配置的，也可以是标准规范预定义的。第一终端装置在第一资源池执行信道接入流程，用于在该第一资源池中的时频资源发送第一数据。第一资源池中的时频资源为非授权资源，非授权资源为需要进行信道接入才可以发送数据的资源池。非授权频段的中心频点和对应的带宽由国际组织/机构、国家政府或地区政府发布的法律法规确定。410. The first terminal device obtains resource pool configuration information, where the resource pool configuration information indicates the first resource pool and the second resource pool; the resource pool configuration information may be configured or preconfigured by network equipment, or may be predefined by standard specifications . The first terminal device executes a channel access procedure in the first resource pool, for sending first data on time-frequency resources in the first resource pool. The time-frequency resources in the first resource pool are unlicensed resources, and the unlicensed resources are resource pools that require channel access before data can be sent. The central frequency point and corresponding bandwidth of the unlicensed frequency band are determined by laws and regulations issued by international organizations/institutions, national governments or regional governments.

可以理解地，信道接入流程是根据LBT机制接入非授权信道的流程，终端装置通过执行信道接入流程接入非授权信道发送数据。LBT机制用于终端装置判断该非授权频段是否被其他用户占用。如果被其他用户占用，则不能在该非授权频段发送数据，如果没有被其他用户占用，则可以在该非授权频段发送数据。It can be understood that the channel access process is a process of accessing an unlicensed channel according to the LBT mechanism, and the terminal device accesses the unlicensed channel to send data by executing the channel access process. The LBT mechanism is used by the terminal device to determine whether the unlicensed frequency band is occupied by other users. If it is occupied by other users, data cannot be sent in the unlicensed frequency band, and if it is not occupied by other users, data can be sent in the unlicensed frequency band.

420，第一终端装置确定第二资源池的资源选择窗，并根据该资源选择窗确定第二资源池的侦听窗。第二资源池为授权频段或专用频段内的资源池，例如，属于网络运营商所运营管理的授权频段，或国际组织/国家/地区发布的专用频段，例如，智能交通***(intelligent transport systems，ITS)频段，第二资源池为不需要进行信道接入便可发送数据的资源池。该侦听窗对应的时隙范围在该资源选择窗对应的时隙范围之前。420. The first terminal device determines a resource selection window of the second resource pool, and determines a listening window of the second resource pool according to the resource selection window. The second resource pool is a resource pool in a licensed frequency band or a dedicated frequency band, for example, a licensed frequency band operated and managed by a network operator, or a dedicated frequency band issued by an international organization/country/region, for example, an intelligent transport system (intelligent transport systems, ITS) frequency band, and the second resource pool is a resource pool that can send data without channel access. The time slot range corresponding to the listening window is before the time slot range corresponding to the resource selection window.

具体地，第一终端装置在时隙n ₀时，确定有待发送的数据，开始执行信道接入流程，直至成功接入非授权频段的至少一个非授权信道发送该待发送数据，其中，第一终端装置设置第一计数器N的初始值为N＝N _init。第一终端装置根据在第一时隙n ₁时第一计数器的数值N _n1，确定资源选择窗，第一计数器为根据信道接入流程确定的用于发送第一数据的计数器。第一时隙n ₁在资源选择窗对应的时隙范围之前。示例性地，0＜N _n1≤N _init。该计数器可以为递减计数器，当该递减计数器的数值等于零时，可以在未被占用的非授权频段发送第一数据。 Specifically, at time slot _n0 , the first terminal device determines the data to be sent, and starts to execute the channel access procedure until it successfully accesses at least one unlicensed channel in the unlicensed frequency band to send the data to be sent, wherein the first The terminal device sets the initial value of the first counter N to N=N _init . The first terminal device determines the resource selection window according to the value N _n1 of the first counter at the first time slot n ₁ , and the first counter is a counter for sending the first data determined according to the channel access procedure. The first time slot _n1 is before the time slot range corresponding to the resource selection window. Exemplarily, 0<N _n1 ≦N _init . The counter may be a down counter, and when the value of the down counter is equal to zero, the first data may be sent in an unoccupied unlicensed frequency band.

应理解，第一时隙n ₁仅用于指示一个参考时间点，在时隙n ₀之后，且在发送待发送数据之前，并不因第一时隙n ₁所在的时隙位置或该第一时隙n ₁是否真实存在而限制本申请确定的资源选择窗。 It should be understood that the first time slot n ₁ is only used to indicate a reference time point, after the time slot n ₀ and before the data to be sent is sent, it does not depend on the time slot position of the first time slot n ₁ or the time slot of the first time slot Whether a time slot n ₁ actually exists limits the resource selection window determined in this application.

示例性地，资源选择窗的时隙范围可以为[n ₁+T′ ₁,n ₁+T′ ₂]，可以理解为第一终端装置在时隙n ₁时确定的资源选择窗，T′ ₁和T′ ₂满足如下公式(1)和公式(2)： Exemplarily, the time slot range of the resource selection window may be [n ₁ +T′ ₁ ,n ₁ +T′ ₂ ], which can be understood as the resource selection window determined by the first terminal device at time slot n ₁ , T′ ₁ and T′ ₂ satisfy the following formula (1) and formula (2):

其中，

为第一计数器的数值等于零时所在的时隙，具体地，假设在时隙n ₁之后的时间，第一终端装置待接入的非授权信道为一直处于空闲状态，N递减至0时的时隙为

为大于或等于零的正整数，

为大于零的正整数。

和

的取值可以是网络设备配置的或预配置的，也可以是标准规范定义的。 in,

is the time slot where the value of the first counter is equal to zero, specifically, assuming that the unlicensed channel to be accessed by the first terminal device is always in an idle state after the time slot n _{+ 1} , and the time when N is decremented to 0 The gap is

is a positive integer greater than or equal to zero,

is a positive integer greater than zero.

and

The value of can be configured or pre-configured by the network device, or defined by a standard specification.

可选的，

满足如下公式(3)： optional,

Satisfy the following formula (3):

其中，T _d为侦听第一时频资源是否空闲的延长持续时间；T _sl为侦听时隙时段，T _d＝T _f+m _p×T _sl，m _p为连续的侦听时隙时段的个数；m与发送第一数据所使用的子载波间隔Δf的大小相关，如表2所示，出示了m的取值和子载波间隔Δf的一一对应关系。 Among them, T _d is the extended duration for monitoring whether the first time-frequency resource is idle; T _sl is the listening time slot period, T _d =T _f + _mp ×T _sl , and _mp is the continuous listening time slot period m is related to the size of the subcarrier spacing Δf used to send the first data, as shown in Table 2, which shows the one-to-one correspondence between the value of m and the subcarrier spacing Δf.

表2Table 2

mm	Df＝2 ^m·15[kHz] Df＝2 ^m 15[kHz]
00	1515
11	3030
22	6060
33	120120
44	240240
55	480480
66	960960

示例性地，根据资源选择窗[n ₁+T′ ₁,n ₁+T′ ₂]确定侦听窗的时隙范围可以为

其中，

是确定资源选择窗的时延，

的取值和传输所使用的子载波间隔m _SL存在一一对应关系，如表3所示；

是处理侦听窗的侦听结果的时延，

的取值和传输所使用的子载波间隔m _SL存在一一对应关系，如表4所示；T ₀是用于确定侦听窗的长度的参数，该参数可以是网络设备配置的或预配置的，也可以是协议预定义的。 Exemplarily, according to the resource selection window [n ₁ +T′ ₁ ,n ₁ +T′ ₂ ], the time slot range of the listening window can be determined as

in,

is the time delay for determining the resource selection window,

There is a one-to-one correspondence between the value of and the subcarrier spacing m _SL used for transmission, as shown in Table 3;

is the delay in processing the listening results of the listening window,

There is a one-to-one correspondence between the value of T and the subcarrier spacing m _SL used for transmission, as shown in Table 4; T ₀ is a parameter used to determine the length of the listening window, which can be configured or pre-configured by the network device can also be pre-defined by the protocol.

表3table 3

表4Table 4

如图5所示，出示了一种确定资源选择窗和侦听窗的示意图。首先，第一终端装置在时隙n ₀时确定有待发送的数据，则第一终端装置在时隙n ₀开始进行LBT/执行信道接入流程，以确定用于在未被占用的非授权信道发送第一数据；在时隙n ₀时第一计数器的数值为N _init，该第一计数器为递减计数器，若在一个侦听时隙时段非授权信道为空闲，则该第一计数器的数值递减一，若在一个侦听时隙时段非授权信道被占用，则该第一计数器的数值不做改变，即该第一计数器暂停。 As shown in FIG. 5 , a schematic diagram of determining a resource selection window and a listening window is shown. First, the first terminal device determines the data to be sent at time slot n ₀ , then the first terminal device starts to perform LBT/execute channel access procedures at time slot n ₀ to determine the unlicensed channel used for unoccupied Send the first data; when time slot n ₀ , the value of the first counter is N _init , the first counter is a decrement counter, if the unlicensed channel is idle during a listening time slot period, the value of the first counter is decremented One, if the unlicensed channel is occupied during a listening time slot period, the value of the first counter does not change, that is, the first counter is suspended.

在时隙n ₁时第一计数器的数值为N _n1，第一终端装置根据此时第一计数器的数值N _n1确定资源选择窗[n ₁+T′ ₁,n ₁+T′ ₂]，其中，时隙n ₁在时隙n ₀之后，时隙n ₁在资源选择窗对应的时隙范围之前。第一终端装置根据确定的资源选择窗[n ₁+T′ ₁,n ₁+T′ ₂]确定侦听窗

侦听窗对应的时隙范围在资源选择窗对应的时隙范围之前。应理解，资源选择窗与侦听窗的时间单位为时隙。 At time slot n ₁ , the value of the first counter is N _n1 , and the first terminal device determines the resource selection window [n ₁ +T′ ₁ ,n ₁ +T′ ₂ ] according to the value N _n1 of the first counter at this time, where , the time slot n ₁ is after the time slot n ₀ , and the time slot n ₁ is before the time slot range corresponding to the resource selection window. The first terminal device determines the listening window according to the determined resource selection window [n ₁ +T′ ₁ ,n ₁ +T′ ₂ ]

The time slot range corresponding to the listening window is before the time slot range corresponding to the resource selection window. It should be understood that the time unit of the resource selection window and the listening window is a time slot.

第一终端装置可以根据在侦听窗的侦听结果，在资源选择窗中可用的时频资源(授权资源)，向第二终端装置发送用于指示发送第一数据的时频资源(非授权资源)的预约信息/指示信息；当第一终端装置根据第一计数器的数值确定之前预约的用于发送第一数据的时频资源不能使用时，该第一终端装置可以在资源选择窗中可用的时频资源，向第二终端装置重新发送用于发送第一数据的其他时频资源的预约信息/指示信息。其中，用于指示发送第一数据的时频资源的预约信息/指示信息可以承载在SCI中。成功发送第一数据所使用的时频资源为第一计数器的数值等于0时的时频资源。The first terminal device may send a time-frequency resource (unauthorized resource) for instructing to send the first data to the second terminal device according to the interception result in the interception window and the time-frequency resource (authorized resource) available in the resource selection window. resource) reservation information/indication information; when the first terminal device determines that the previously reserved time-frequency resource for sending the first data cannot be used according to the value of the first counter, the first terminal device can be available in the resource selection window time-frequency resources, and resend reservation information/indication information of other time-frequency resources used to send the first data to the second terminal device. Wherein, the reservation information/indication information used to indicate the time-frequency resource for sending the first data may be carried in the SCI. The time-frequency resource used for successfully sending the first data is the time-frequency resource when the value of the first counter is equal to 0.

可以理解地，因第一计数器的数值和侦听时隙时段是对应的，具体地，每当经历一个侦听时隙时段，若非授权信道空闲，则第一计数器的数值递减一，若非授权信道被占用/不空闲，则第一计数器的数值不做改变；由于一个时隙的时间长度大于一个侦听时隙时段的时间长度，那么，一个时隙可以包括多个侦听时隙时段，因此，在一个时隙内第一计数器存在多个不同的数值。本申请中，第一计数器的数值为C所在的时隙，包括：一个时隙中第一计数器的数值最小为C值所在时隙，如图6所示；或一个时隙中第一计数器的数值最大为C值所在时隙，如图7所示；或一个时隙中第一计数器的平均值为C值所在时隙，该平均值为该时隙中最小的第一递减计数器的数值和最大的第一递减计数器数值的平均值，该平均值可以取上取整或下取整，如图8所示。其中，C为大于或等于0的正整数。Understandably, since the value of the first counter corresponds to the listening time slot period, specifically, whenever a listening time slot period is experienced, if the unlicensed channel is idle, the value of the first counter is decremented by one, and if the unlicensed channel Occupied/not idle, then the numerical value of the first counter does not change; Since the time length of a time slot is greater than the time length of a listening time slot period, then, a time slot can include a plurality of listening time slot periods, so , the first counter has multiple different values in one time slot. In the present application, the value of the first counter is the time slot where C is located, including: the minimum value of the first counter in a time slot is the time slot where the value of C is located, as shown in Figure 6; or the time slot of the first counter in a time slot The maximum numerical value is the time slot where the C value is, as shown in Figure 7; or the average value of the first counter in a time slot is the time slot where the C value is, and the average value is the value sum of the smallest first down counter in the time slot The average value of the largest first down counter value, the average value can be rounded up or down, as shown in FIG. 8 . Wherein, C is a positive integer greater than or equal to 0.

在一种可能设计中，在统计一个时隙中的第一计数器的数值时，排除非完整的第一计数器的数值，即第一计数器在递减过程中处于一个时隙的边界，此时该第一计数器的数值不属于该时隙，如图9所示，该时隙中第一个完整的侦听时隙时段对应的第一计数器数值C ₁，第一计数器数值C ₁-1对应的侦听时隙时段一部分在该时隙，一部分在前一个时隙，该第一计数器数值C ₁-1不属于该时隙。 In a possible design, when the value of the first counter in a time slot is counted, the value of the incomplete first counter is excluded, that is, the first counter is at the boundary of a time slot during the decrementing process, and the first counter at this time The value of a counter does not belong _to the time slot. As shown in FIG _. Part of the listening time slot period is in this time slot, and part of it is in the previous time slot, and the first counter value C ₁ -1 does not belong to this time slot.

430，第一终端装置在第二资源池的侦听窗进行侦听，并根据侦听结果确定第二资源池中可用的第二时频资源，该第二时频资源为空闲的时频资源或未被占用的时频资源。第二时频资源可以称为第二频段(band)/第二载波(carrier)/第二带宽部分(bandwidth part，BWP)。430. The first terminal device listens in the listening window of the second resource pool, and determines a second time-frequency resource available in the second resource pool according to the listening result, where the second time-frequency resource is an idle time-frequency resource Or unoccupied time-frequency resources. The second time-frequency resource may be called a second frequency band (band)/second carrier (carrier)/second bandwidth part (bandwidth part, BWP).

440，第一终端装置在第二时频资源/第二频段/第二载波/第二带宽部分向第二终端装置发送第一信息，该第一信息中包括第一指示信息，该第一指示信息用于指示发送第一数据的第一时频资源/第一频段/第一载波/第一带宽部分。应理解，资源选择窗的边界值n ₁+T′ ₂的应尽可能和在第一时隙n ₁计算得到的第一计数器的数值等于零时所在的时隙相近，这样提供的第一指示信息更准确。 440. The first terminal device sends first information to the second terminal device in the second time-frequency resource/second frequency band/second carrier/second bandwidth part, where the first information includes first indication information, and the first indication The information is used to indicate the first time-frequency resource/first frequency band/first carrier/first bandwidth part for sending the first data. It should be understood that the boundary value n ₁ +T' ₂ of the resource selection window should be as close as possible to the time slot where the value of the first counter calculated in the first time slot n ₁ is equal to zero, and the first indication information provided in this way more acurrate.

示例性地，该第一信息可以包括第一PSCCH和第一PSSCH，其中，第一PSCCH包括第一SCI，第一PSSCH包括第一指示信息和/或第一数据。第一SCI用于调度第一PSSCH，包括调度第一指示信息和/或第一数据，即第一PSSCH包括第一指示信息。Exemplarily, the first information may include a first PSCCH and a first PSSCH, where the first PSCCH includes the first SCI, and the first PSSCH includes first indication information and/or first data. The first SCI is used to schedule the first PSSCH, including scheduling first indication information and/or first data, that is, the first PSSCH includes the first indication information.

可选的，第一指示信息也可以包括在第一SCI中，该第一指示信息也可以包括在第一数据中。第一信息也可以为第一指示信息，即第一终端装置可以直接向第二终端装置发送第一指示信息。Optionally, the first indication information may also be included in the first SCI, and the first indication information may also be included in the first data. The first information may also be first indication information, that is, the first terminal device may directly send the first indication information to the second terminal device.

示例性地，第一信息还可以包括第二指示信息。示例性地，第一终端装置向第二终端装置发送第一指示信息和第二指示信息。该第二指示信息用于指示以下至少一种信息：Exemplarily, the first information may further include second indication information. Exemplarily, the first terminal device sends the first indication information and the second indication information to the second terminal device. The second indication information is used to indicate at least one of the following information:

(1)在第一时隙n ₁时第一计数器的数值N _n1；第二终端装置根据在第一时隙n ₁时的第一计数器的数值N _n1，可以确定第一终端装置完成信道接入的时间信息，第一终端装置完成信道接入的时间信息包括第一终端装置接入信道发送第一数据的时间，即第一计数器的数值递减至0时所在的时隙。第二终端装置可以根据该时间信息确定休眠的起始时间和时间长度，或唤醒的起始时间和时间长度；该第二终端装置可以在唤醒时间段内接收第一终端装置发送的第一数据，在休眠时间段内进入休眠状态以节省功耗。可选地，第二终端装置还可以根据在第一时隙n ₁时的第一计数器的数值N _n1调整自身发送数据的时间，以避免第二终端装置发送数据和第一终端装置发送第一数据在时域资源上出现重叠，从而避免由于第二终端装置的半双工问题而无法正确接收该第一数据。 (1) The value N _n1 of the first counter at the first time slot n ₁ ; the second terminal device can determine that the first terminal device has completed the channel connection according to the value N _n1 of the first counter at the time of the first time slot n ₁ The input time information, the time information when the first terminal device completes channel access includes the time when the first terminal device accesses the channel to send the first data, that is, the time slot when the value of the first counter is decremented to 0. The second terminal device can determine the start time and duration of sleep, or the start time and duration of wake-up according to the time information; the second terminal device can receive the first data sent by the first terminal device within the wake-up time period , enters the sleep state during the sleep period to save power. Optionally, the second terminal device can also adjust the time for sending data by itself according to the value N _n1 of the first counter at the first time slot _n1 , so as to avoid the second terminal device sending data and the first terminal device sending the first The data overlaps on the time domain resources, so as to avoid the first data being unable to be received correctly due to the half-duplex problem of the second terminal device.

(2)第一时隙偏移值信息，用于指示

与发送第一信息的时隙的时隙差值，该第一时隙偏移值信息可以告知第二终端装置当前进行LBT的情况，可以让第二终端装置获知何时接收第一数据或何时第一计数器的数值等于0；第二终端装置可以根据

与发送第一信息的时隙的时隙差值，确定第一终端装置完成信道接入的时间信息，第一终端装置完成信道接入的时间信息包括第一终端装置接入信道发送第一数据的时间，即第一计数器的数值递减至0时所在的时隙。第二终端装置还可以根据

与发送第一信息的时隙的时隙差值，确定休眠的起始时间和时间长度，或唤醒的起始时间和时间长度；该第二终端装置可以在唤醒时间段内接收第一终端装置发送的第一数据，在休眠时间段内进入休眠状态以节省功耗。可选地，第二终端装置还可以根据

与发送第一信息的时隙的时隙差值，调整自身发送数据的时间，以避免第二终端装置发送数据和第一终端装置发送第一数据在时域资源上出现重叠，从而避免由于第二终端装置的半双工问题而无法正确接收该第一数据。 (2) First time slot offset value information, used to indicate

The time slot difference from the time slot for sending the first information, the first time slot offset value information can inform the second terminal device of the current LBT situation, and can let the second terminal device know when to receive the first data or when When the value of the first counter is equal to 0; the second terminal device can according to

The time slot difference from the time slot for sending the first information determines the time information for the first terminal device to complete channel access, and the time information for the first terminal device to complete channel access includes the first terminal device accessing the channel to send the first data The time is the time slot when the value of the first counter is decremented to 0. The second terminal device can also be based on

The time slot difference with the time slot for sending the first information determines the start time and duration of sleep, or the start time and duration of wake-up; the second terminal device can receive the first terminal device within the wake-up time period The first data sent, enter the sleep state during the sleep period to save power consumption. Optionally, the second terminal device can also be based on

The difference between the time slot and the time slot for sending the first information, adjust the time for sending data by itself, so as to avoid the overlapping of the time domain resources between the data sent by the second terminal device and the first data sent by the first terminal device, thereby avoiding the Due to the half-duplex problem of the two terminal devices, the first data cannot be received correctly.

(3)第一信道占用时间信息，用于指示发送第一数据所使用的信道占用时间或第一终端装置给第二终端装置发送SL信息所使用的信道占用时间，第一信道占用时间可以包括若干个时隙或指示一段时间(ms)；第二终端装置可以根据该第一信道占用时间信息确定休眠或唤醒的时间长度。可选地，第二终端装置还可以根据第一信道占用时间信息，调整自身发送数据的时间，以避免第二终端装置发送数据和第一终端装置发送第一数据在时域资源上出现重叠，从而避免由于第二终端装置的半双工问题而无法正确接收该第一数据。(3) First channel occupancy time information, used to indicate the channel occupancy time used for sending the first data or the channel occupancy time used by the first terminal device to send SL information to the second terminal device, the first channel occupancy time may include A number of time slots or indicate a period of time (ms); the second terminal device can determine the length of sleep or wake-up time according to the first channel occupation time information. Optionally, the second terminal device may also adjust the time at which it sends data according to the information about the first channel occupation time, so as to avoid overlap in time domain resources between the data sent by the second terminal device and the first data sent by the first terminal device, Therefore, it is avoided that the first data cannot be received correctly due to the half-duplex problem of the second terminal device.

(4)第一位置信息，用于指示第一终端装置的地理位置，可以由经纬坐标确定的一个区域标识(zone ID)信息，该区域标识所指示的地理范围可以由网络设备配置或预配置，或其他表征第一终端装置的绝对位置或相对位置。其他终端装置，例如，第二终端装置可以根据第一终端装置的地理位置确定与该第一终端装置的距离，进而根据距离的远近判断是否需要调整进行LBT的参数，例如RSRP测量参数，包括调整用于判断信道是否繁忙的能量检测门限，以实现资源复用，或调整发送功率，控制干扰水平；(4) The first location information is used to indicate the geographic location of the first terminal device, which can be a zone identification (zone ID) information determined by latitude and longitude coordinates, and the geographic range indicated by the zone ID can be configured or pre-configured by the network device , or other characters representing the absolute or relative position of the first terminal device. For other terminal devices, for example, the second terminal device can determine the distance from the first terminal device according to the geographic location of the first terminal device, and then judge whether it is necessary to adjust the parameters for LBT based on the distance, such as RSRP measurement parameters, including adjusting The energy detection threshold used to judge whether the channel is busy, so as to realize resource reuse, or adjust the transmission power, and control the interference level;

(5)第一数据标识(identification，ID)信息，用于标识第一数据的发送源(source)和/或发送目的地(destination),即对应的源ID和目的地ID。第二终端装置还根据第一数据标识信息可以确定第一终端装置发送的第一数据是否是发给自己的。第一数据对应的ID信息可以是与第一终端装置和/或第二终端装置有关的标识；也可以用于标识数据或数据的业务。该第一数据标识信息可以是层一(layer-1)标识信息，即物理层ID信息，承载于物理层控制信令中，例如承载于SCI中；该第一装置标识信息也可以是层二(layer-2)ID信息，即媒体接入控制(medium access control，MAC)层ID信息，承载于媒体接入控制控制元素(medium access control control element，MAC CE)中。层一ID信息是层二ID信息的至少一部分信息，即层二信息包括完整的目的ID和源ID，层一ID信息承载一部分层二信息，例如，层二目的ID的长度为24比特，层一目的ID可以为层二目的ID的前16比特；又例如，层二源ID的长度为24比特，层一源ID可以为层二源ID的前8比特。上述8、16和24比特只是一种示例，在实际应用中ID的长度也可以为其他正整数，满足层二ID的比特数大于或等于层一ID的比特数即可。示例性地，第一装置标识信息还可以是该第一终端装置在组播中标识信息，即表示针对一个组播业务或组播通信，该第一终端装置在该组播业务或组播通信中唯一的标识。(5) First data identification (identification, ID) information, used to identify the sending source (source) and/or sending destination (destination) of the first data, that is, the corresponding source ID and destination ID. The second terminal device can also determine whether the first data sent by the first terminal device is sent to itself according to the first data identification information. The ID information corresponding to the first data may be an identification related to the first terminal device and/or the second terminal device; it may also be used to identify data or data services. The first data identification information may be layer-1 identification information, that is, physical layer ID information, which is carried in physical layer control signaling, for example, in SCI; the first device identification information may also be layer-2 (layer-2) ID information, that is, medium access control (medium access control, MAC) layer ID information, carried in a medium access control control element (medium access control control element, MAC CE). Layer 1 ID information is at least a part of Layer 2 ID information, that is, Layer 2 information includes a complete destination ID and source ID, and Layer 1 ID information carries a part of Layer 2 information. For example, the length of Layer 2 destination ID is 24 bits, and Layer 2 The first destination ID can be the first 16 bits of the layer two destination ID; for another example, the length of the layer two source ID is 24 bits, and the layer one source ID can be the first 8 bits of the layer two source ID. The above-mentioned 8, 16 and 24 bits are just an example. In practical applications, the length of the ID can also be other positive integers, as long as the bit number of the layer 2 ID is greater than or equal to the bit number of the layer 1 ID. Exemplarily, the first device identification information may also be the identification information of the first terminal device in multicast, that is, for a multicast service or multicast communication, the first terminal device in the multicast service or multicast communication unique identifier in .

(6)第一装置标识信息，用于标识第一终端装置。(6) First device identification information, used to identify the first terminal device.

(7)第一资源池标识信息，用于指示第一资源池。终端装置获得资源池配置信息，该资源池配置信息可以指示多个资源池，即终端装置可以在多个资源池中选择至少一个资源池进行发送或接收。资源池标识信息可以用于标识不同的资源池。第二终端装置根据第一终端装置发送的第一资源池标识信息，可以获知第一终端装置是在哪一个或哪些个资源池上发送该第一数据，进而在第一终端装置指示的资源池上进行数据接收。(7) First resource pool identification information, used to indicate the first resource pool. The terminal device obtains resource pool configuration information, and the resource pool configuration information may indicate multiple resource pools, that is, the terminal device may select at least one resource pool among the multiple resource pools for sending or receiving. The resource pool identification information can be used to identify different resource pools. According to the first resource pool identification information sent by the first terminal device, the second terminal device can know which resource pool or resource pools the first terminal device is sending the first data on, and then perform data processing on the resource pool indicated by the first terminal device. Data reception.

可选的，第一终端装置也可以不通过第一信息发送第二指示信息；示例性地，第二指示信息可以是第一终端装置单独发送给第二终端装置的。应理解，第二指示信息区别于第一指示信息，第一指示信息是资源指示信息或资源预约信息，第二指示信息是除了资源指示信息之外的信息。Optionally, the first terminal device may not send the second indication information through the first information; for example, the second indication information may be sent by the first terminal device to the second terminal device alone. It should be understood that the second indication information is different from the first indication information, the first indication information is resource indication information or resource reservation information, and the second indication information is information other than the resource indication information.

450，第二终端装置在第二时频资源/第二频段/第二载波/第二带宽部分接收来自第一终端装置的第一信息，该第一信息中包括第一指示信息，该第一指示信息用于指示发送第一数据的第一时频资源/第一频段/第一载波/第一带宽部分。具体地，第二终端装置在第二时频资源/第二频段/第二载波/第二带宽部分可以接收到来自第一终端装置的第一指示信息，或者，第二终端装置在第二时频资源/第二频段/第二载波/第二带宽部分可以接收到来自第一终端装置的第一指示信息和第二指示信息。450. The second terminal device receives first information from the first terminal device in the second time-frequency resource/second frequency band/second carrier/second bandwidth part, where the first information includes first indication information, and the first The indication information is used to indicate the first time-frequency resource/first frequency band/first carrier/first bandwidth part for sending the first data. Specifically, the second terminal device may receive the first indication information from the first terminal device at the second time-frequency resource/second frequency band/second carrier/second bandwidth part, or the second terminal device may receive the first indication information at the second time-frequency resource/second frequency band/second carrier/second bandwidth part, or The frequency resource/second frequency band/second carrier/second bandwidth part may receive the first indication information and the second indication information from the first terminal device.

第二终端设备根据接收到的第一信息，可以确定第一终端装置发送第一数据的第一时频资源/第一频段/第一载波/第一带宽部分。According to the received first information, the second terminal device may determine the first time-frequency resource/first frequency band/first carrier/first bandwidth part for the first terminal device to send the first data.

460，第一终端装置在第一时频资源/第一频段/第一载波/第一带宽部分向第二终端装置发送第一数据，第二终端装置根据第一信息，在第一时频资源/第一频段/第一载波/第一带宽部分接收来自第一终端装置的第一数据。460. The first terminal device sends the first data to the second terminal device in the first time-frequency resource/first frequency band/first carrier/first bandwidth part, and the second terminal device transmits the first data in the first time-frequency resource according to the first information. /first frequency band/first carrier/first bandwidth portion receives first data from a first terminal device.

示例性地，第二终端装置根据第一信息确定第一终端装置将要发送的第一数据是否是发送给自己的。可选的，第二终端装置可以根据第一信息中第一数据标识信息确定第一数据是否是发送给自己的，或者，第二终端装置可以根据第一信息中的第一装置标识信息确定第一数据是否是发送给自己的。例如，若该第二终端装置需要接收的业务对应的标识信息和第一数据标识信息匹配，则认为第一数据是第一终端装置发送给自己的；否则，认为第一数据不是发送给自己的。又例如，若该第二终端装置需要从其他终端装置接收数据，且其他终端装置的标识信息与第一装置标识信息匹配，则认为第一数据是第一终端装置发送给自己的；否则，认为第一数据不是发送给自己的。Exemplarily, the second terminal device determines whether the first data to be sent by the first terminal device is sent to itself according to the first information. Optionally, the second terminal device may determine whether the first data is sent to itself according to the first data identification information in the first information, or the second terminal device may determine whether the first data is sent to itself according to the first device identification information in the first information. 1. Whether the data is sent to itself. For example, if the identification information corresponding to the service that the second terminal device needs to receive matches the first data identification information, it is considered that the first data is sent to itself by the first terminal device; otherwise, it is considered that the first data is not sent to itself . For another example, if the second terminal device needs to receive data from other terminal devices, and the identification information of other terminal devices matches the identification information of the first device, it is considered that the first data is sent to itself by the first terminal device; otherwise, it is considered The first data is not sent to itself.

在一种情况下，第二终端装置在不接收数据的时候处于休眠状态，在接收和译码数据的时候处于唤醒状态，该第二终端装置在接收和译码数据后，重新再回到休眠状态。若第二终端装置根据第一信息确定第一终端装置将要发送的第一数据是给自己的，第二终端装置可以根据第一终端装置发送的第一信道占用时间信息，确定第一唤醒时间段，第一唤醒时间段包括第一时频资源包含的全部时隙；第二终端装置在第一时频资源接收第一数据，即第二终端装置在第一唤醒时间段唤醒以接收第一数据。应理解，第一唤醒时间段可能大于或等于第一时频资源对应的全部时隙，除第一时频资源包含的全部时隙之外的时隙可能用于后续的第一数据的重传。确定第一唤醒时间段可以理解为确定第一唤醒时间段的起始时隙和第一唤醒时间段的时间长度，第一唤醒时间段的时间长度可以理解为第一唤醒时间段的包括的时隙数量。In one case, the second terminal device is in a sleep state when not receiving data, and is in a wake-up state when receiving and decoding data, and the second terminal device returns to sleep after receiving and decoding data state. If the second terminal device determines according to the first information that the first data to be sent by the first terminal device is for itself, the second terminal device may determine the first wake-up time period according to the first channel occupation time information sent by the first terminal device , the first wake-up time period includes all time slots included in the first time-frequency resource; the second terminal device receives the first data in the first time-frequency resource, that is, the second terminal device wakes up in the first wake-up time period to receive the first data . It should be understood that the first wake-up period may be greater than or equal to all time slots corresponding to the first time-frequency resource, and time slots other than all time slots included in the first time-frequency resource may be used for subsequent retransmission of the first data . Determining the first wake-up time period can be understood as determining the start time slot of the first wake-up time period and the time length of the first wake-up time period, and the time length of the first wake-up time period can be understood as the included time of the first wake-up time period. number of slots.

第二终端装置在不接收数据的时候处于休眠状态的情况下，若第二终端装置根据第一信息确定第一终端装置将要发送的第一数据不是给自己的,例如通过，则第二终端装置将在第一唤醒时间段对应的时间内一直处于休眠状态。When the second terminal device is in a dormant state when not receiving data, if the second terminal device determines according to the first information that the first data to be sent by the first terminal device is not for itself, for example, through It will be in the dormant state for the time corresponding to the first wake-up time period.

在另一种情况下，第二终端装置一直处于唤醒状态，该第二终端装置在不需要接收数据的时候进入休眠状态。若第二终端装置根据第一信息确定第一终端装置将要发送的第一数据是给自己的，则不需要执行唤醒动作；若第二终端装置根据第一信息确定第一终端装置将要发送的第一数据不是给自己的，则在第一唤醒时间段进入休眠状态。In another case, the second terminal device is always in the wake-up state, and the second terminal device enters the sleep state when it does not need to receive data. If the second terminal device determines according to the first information that the first data to be sent by the first terminal device is for itself, it does not need to perform a wake-up action; if the second terminal device determines according to the first information that the first data to be sent by the first terminal device is If the data is not for itself, enter the dormant state during the first wake-up period.

可选的，在第一终端装置向第二终端装置发送第一信息之前，第一终端装置可以在第三时频资源向第二终端装置发送第二信息，该第二信息中包括第三指示信息，第三指示信息用于指示第四时频资源，第四时频资源为第一资源池中的时频资源，第四时频资源在第一时频资源之前，第三时频资源为第二资源池中的时频资源。该第四时频资源为之前预约的用于发送第一数据的时频资源，第一信息更新了第二信息，即第一信息将用于发送第一数据的第四时频资源更新为第一时频资源。其中，第四时频资源在第一时频资源之前，可以理解为，第四时频资源包含的时隙在第一时频资源包含的时隙之前。第三时频资源的确定方式与第二时频资源的确定方式是相同的，第三时频资源包含的时隙在第二时频资源包含的时隙之前。Optionally, before the first terminal device sends the first information to the second terminal device, the first terminal device may send second information to the second terminal device in a third time-frequency resource, where the second information includes a third indication information, the third indication information is used to indicate the fourth time-frequency resource, the fourth time-frequency resource is the time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is Time-frequency resources in the second resource pool. The fourth time-frequency resource is a previously reserved time-frequency resource for sending the first data, and the first information updates the second information, that is, the first information updates the fourth time-frequency resource for sending the first data to the fourth time-frequency resource for sending the first data. A time-frequency resource. Wherein, the fourth time-frequency resource is before the first time-frequency resource, it can be understood that the time slot included in the fourth time-frequency resource is before the time slot included in the first time-frequency resource. The manner of determining the third time-frequency resource is the same as that of the second time-frequency resource, and the time slot included in the third time-frequency resource is before the time slot included in the second time-frequency resource.

对应地，第二终端装置在第三时频资源接收第一终端装置发送的第二信息。在第二终端装置接收到第一终端装置发送的第一信息之后，该第二终端装置根据第一信息中包括的用于指示发送第一数据的第一时频资源，在第四时频资源包含的时隙进入休眠状态。该情况下，第二终端装置一直处于唤醒状态，该第二终端装置在不需要接收数据的时候处于休眠状态。具体地，第二终端装置可以根据第二信息确定休眠时间段的起始时隙和时间长度。应理解，若第二终端设备一种处于休眠状态，则第二设备只需在第一时频资源对应的时隙唤醒。Correspondingly, the second terminal device receives the second information sent by the first terminal device in the third time-frequency resource. After the second terminal device receives the first information sent by the first terminal device, the second terminal device, according to the first time-frequency resource included in the first information and used to indicate the sending of the first data, in the fourth time-frequency resource The contained slot goes to sleep. In this case, the second terminal device is always in the wake-up state, and the second terminal device is in the sleep state when it does not need to receive data. Specifically, the second terminal device may determine the start time slot and time length of the sleep time period according to the second information. It should be understood that, if the second terminal device is in a dormant state, the second device only needs to wake up in the time slot corresponding to the first time-frequency resource.

可选的，第二终端装置获取侧行链路非连续接收(sidelink-discontinuous reception，SL-DRX)配置信息，该侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙，第二终端装置在侧行链路非连续接收的非激活时间内进入休眠状态，即在四时频资源包含的时隙进入休眠状态。Optionally, the second terminal device acquires sidelink-discontinuous reception (SL-DRX) configuration information, where the sidelink-discontinuous reception configuration information indicates inactivation of sidelink-discontinuous reception The time includes the time slots included in the fourth time-frequency resources, and the second terminal device enters the sleep state during the inactive time of the sidelink discontinuous reception, that is, enters the sleep state in the time slots included in the four time-frequency resources.

示例性地，第一终端装置根据第一信息，向第二终端装置发送侧行链路非连续接收配置信息，该侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。对应地，第二终端装置接收第一终端装置发送的侧行链路非连续接收配置信息。应理解，侧行链路非连续接收配置信息可以是从第一终端装置处获得的，也可以是网络设备配置或预配置的，也可以是标准规范预定义的。本申请对此不做具体限定。可选的，第二终端装置在第二时频资源/第二频段/第二载波/第二带宽部分接收第一信息和在第一时频资源/第一频段/第一载波/第一带宽部分接收第一数据使用相同的射频模块，或第一带宽部分和第二带宽部分属于一个相同带宽部分，第二终端装置在在第一时频资源/第一频段/第一载波/第一带宽部分所对应的频域资源或频段上关闭接收机或不对PSSCH或PSSCH进行译码，即在第一时频资源/第一频段/第一载波/第一带宽部分所对应的频域资源或频段进行休眠，相当于需要对当前射频模块的接收带宽的频点和/或接收带宽的大小进行调整，或者称之为带宽部分切换。。具体地，第二终端装置将接收第一信息和第一数据的带宽部分切换为只需接收第一信息的带宽部分。该情况下，第一终端装置在确定资源选择窗和侦听窗的过程中，需要考虑带宽部分切换所导致的时延，资源选择窗的时隙范围为[n ₁+T′ ₁,n ₁+T′ ₂]，其中，T′ ₁和T′ ₂满足如下公式(4)和公式(5)： Exemplarily, the first terminal device sends sidelink discontinuous reception configuration information to the second terminal device according to the first information, where the sidelink discontinuous reception configuration information indicates that sidelink discontinuous reception is not activated The time includes the time slots included in the fourth time-frequency resource. Correspondingly, the second terminal device receives sidelink discontinuous reception configuration information sent by the first terminal device. It should be understood that the sidelink discontinuous reception configuration information may be obtained from the first terminal device, may also be configured or pre-configured by a network device, or may be predefined by a standard specification. This application does not specifically limit it. Optionally, the second terminal device receives the first information in the second time-frequency resource/second frequency band/second carrier/second bandwidth part and receives the first information in the first time-frequency resource/first frequency band/first carrier/first bandwidth Part of receiving the first data uses the same radio frequency module, or the first bandwidth part and the second bandwidth part belong to the same bandwidth part, and the second terminal device is in the first time-frequency resource/first frequency band/first carrier/first bandwidth Turn off the receiver or do not decode the PSSCH or PSSCH on the frequency domain resource or frequency band corresponding to the part, that is, the frequency domain resource or frequency band corresponding to the first time-frequency resource/first frequency band/first carrier/first bandwidth part Dormancy is equivalent to adjusting the frequency point and/or size of the receiving bandwidth of the current radio frequency module, or it is called bandwidth partial switching. . Specifically, the second terminal device switches the part of the bandwidth that receives the first information and the first data to the part of the bandwidth that only needs to receive the first information. In this case, in the process of determining the resource selection window and the listening window, the first terminal device needs to consider the time delay caused by the switching of the bandwidth part, and the time slot range of the resource selection window is [n ₁ +T′ ₁ ,n ₁ +T' ₂ ], wherein, T' ₁ and T' ₂ satisfy following formula (4) and formula (5):

其中，

为第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

is the time slot when the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

若第二终端装置有多个射频模块可以同时分别接收第一信息和第一数据，或者可以同时激活多个SL-BWP分别接收第一信息和第一数据，则无需考虑T _BWP。 If the second terminal device has multiple radio frequency modules that can simultaneously receive the first information and the first data respectively, or can simultaneously activate multiple SL-BWPs to receive the first information and the first data respectively, then T _BWP does not need to be considered.

在本申请实施例提供的技术方案中，第一终端装置根据LBT确定第二资源池(授权资源)的资源选择窗和侦听窗；根据侦听结果在资源选择窗内第二资源池中可用的第二时频资源向第二终端装置发送第一指示信息，该第一指示信息用于指示在第一资源池(非授权资源)中发送第一数据的第一时频资源。若之前预约的用于发送第一数据的时频资源被其他终端装置占用，则可以根据重新确定的第一时频资源发送第一数据，从而避免资源碰撞、提高数据传输的可靠性。除此之外，第二终端装置根据第一终端装置指示的用于接收第一数据的第一时频资源接收第一数据，可以及时调整休眠状态/接收状态来节省功耗。In the technical solution provided by the embodiment of this application, the first terminal device determines the resource selection window and listening window of the second resource pool (authorized resource) according to the LBT; The second time-frequency resource sends first indication information to the second terminal device, where the first indication information is used to indicate the first time-frequency resource for sending the first data in the first resource pool (unauthorized resource). If the previously reserved time-frequency resources for sending the first data are occupied by other terminal devices, the first data may be sent according to the re-determined first time-frequency resources, thereby avoiding resource collisions and improving reliability of data transmission. In addition, the second terminal device receives the first data according to the first time-frequency resource indicated by the first terminal device for receiving the first data, and can adjust the sleep state/receiving state in time to save power consumption.

本申请实施例提出了一种通信装置1000，该通信装置可以应用于图4方法实施例中的第一终端装置，也可以是实现图4实施例中方法的部件，例如一种芯片。如图10所示，出示了本申请实施例的一种通信装置1000的示意性框图。该通信装置1000包括：The embodiment of the present application proposes a communication device 1000, which may be applied to the first terminal device in the method embodiment in FIG. 4, or may be a component implementing the method in the embodiment in FIG. 4, such as a chip. As shown in FIG. 10 , a schematic block diagram of a communication device 1000 according to an embodiment of the present application is shown. The communication device 1000 includes:

处理单元1010，用于执行信道接入流程，用于在第一资源池中的时频资源发送第一数据；The processing unit 1010 is configured to execute a channel access procedure, and is configured to send first data on time-frequency resources in the first resource pool;

确定单元1020，用于确定第二资源池的资源选择窗和侦听窗，所述侦听窗在所述资源选择窗之前；A determining unit 1020, configured to determine a resource selection window and a listening window of the second resource pool, where the listening window is before the resource selection window;

所述确定单元1020还用于，根据在所述侦听窗的侦听结果，确定所述资源选择窗内所述第二资源池中可用的第二时频资源；The determining unit 1020 is further configured to, according to the interception result in the interception window, determine the second time-frequency resource available in the second resource pool in the resource selection window;

收发单元1030，用于在所述第二时频资源向第二终端装置发送第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送所述第一数据的第一时频资源。A transceiver unit 1030, configured to send first information to a second terminal device on the second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate to send the first data The first time-frequency resource of .

可选的，所述确定单元1020具体用于：Optionally, the determining unit 1020 is specifically configured to:

根据在第一时隙n ₁时第一计数器的数值N _n1，确定所述资源选择窗，所述第一计数器为根据所述信道接入流程确定的用于发送所述第一数据的计数器，其中，所述第一时隙在所述资源选择窗之前，0＜N _n1≤N _init，N _init是所述第一计数器的初始值； Determine the resource selection window according to the value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter for sending the first data determined according to the channel access procedure, Wherein, the first time slot is before the resource selection window, 0<N _n1 ≤N _init , and N _init is the initial value of the first counter;

根据所述资源选择窗确定所述侦听窗。The listening window is determined according to the resource selection window.

可选的，所述资源选择窗的时隙范围为[n ₁+T′ ₁,n ₁+T′ ₂]，其中，T′ ₁和T′ ₂满足如下公式： Optionally, the time slot range of the resource selection window is [n ₁ +T′ ₁ , n ₁ +T′ ₂ ], where T′ ₁ and T′ ₂ satisfy the following formula:

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

为大于零的正整数。 in,

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

is a positive integer greater than zero.

其中，

为所述第一计数器的数值等于零时所在的时隙，

为大于或等于零的正整数，

is the time slot where the value of the first counter is equal to zero,

is a positive integer greater than or equal to zero,

可选的，

其中，T _d为侦听所述第一时频资源是否空闲的延长持续时间，T _sl为侦听时隙时段，m与发送所述第一数据所使用的子载波间隔的大小相关。 optional,

可选的，所述侦听窗的时隙范围为

其中，

是确定所述资源选择窗的时延，

是处理所述侦听窗的侦听结果的时延，T ₀用于确定所述侦听窗的长度。 Optionally, the time slot range of the listening window is

in,

is the time delay for determining the resource selection window,

可选的，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：Optionally, the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information:

N _n1； N _n1 ;

第一时隙偏移值信息，用于指示

与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate

The time slot difference from the time slot for sending the first information;

第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；The first channel occupancy time information is used to indicate the channel occupancy time used for sending the first data;

第一位置信息，用于指示所述第一终端装置的地理位置；first location information, used to indicate the geographic location of the first terminal device;

第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；The first data identification information is used to identify the sending source and/or sending destination of the first data;

第一装置标识信息，用于标识所述第一终端装置；或，First device identification information, used to identify the first terminal device; or,

第一资源池标识信息，用于指示所述第一资源池。The first resource pool identification information is used to indicate the first resource pool.

可选的，所述收发单元1030还用于，在第三时频资源向所述第二终端装置发送第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源。Optionally, the transceiving unit 1030 is further configured to send second information to the second terminal device in a third time-frequency resource, where the second information includes third indication information, and the third indication information is used for Indicates a fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource The resources are time-frequency resources in the second resource pool.

可选的，所述收发单元1030还用于，根据所述第一信息，向所述第二终端装置发送侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。Optionally, the transceiving unit 1030 is further configured to, according to the first information, send sidelink discontinuous reception configuration information to the second terminal device, the sidelink discontinuous reception configuration information indicating The inactivation time of the sidelink discontinuous reception includes the time slot included in the fourth time-frequency resource.

本申请实施例提出了另一种通信装置1100，该通信装置可以应用于图4方法实施例中的第二终端装置，也可以是实现图4实施例中方法的部件，例如一种芯片。如图11所示，出示了本申请实施例的一种通信装置1100的示意性框图。该通信装置1100包括：The embodiment of the present application proposes another communication device 1100 , which can be applied to the second terminal device in the method embodiment in FIG. 4 , or can be a component implementing the method in the embodiment in FIG. 4 , such as a chip. As shown in FIG. 11 , a schematic block diagram of a communication device 1100 according to an embodiment of the present application is shown. The communication device 1100 includes:

收发单元1110，用于在第二时频资源接收来自第一终端装置的第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送第一数据的第一时频资源，所述第一时频资源为第一资源池中的时频资源，所述第二时频资源为第二资源池中的时频资源；The transceiver unit 1110 is configured to receive first information from the first terminal device at the second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate the first information for sending the first data. Time-frequency resources, the first time-frequency resources are time-frequency resources in the first resource pool, and the second time-frequency resources are time-frequency resources in the second resource pool;

所述收发单元1110还用于，根据所述第一信息，在所述第一时频资源接收所述第一数据。The transceiving unit 1110 is further configured to receive the first data in the first time-frequency resource according to the first information.

在第一时隙n ₁时第一计数器的数值N _n1，所述第一计数器为用于确定所述第一时频资源的计数器，所述第一时隙在所述第二时频资源包含的时隙之前； The value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter used to determine the first time-frequency resource, and the first time slot contains in the second time-frequency resource before the time slot;

第一时隙偏移值信息，用于指示所述第一计数器的数值等于零时所在的时隙

与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate the time slot where the value of the first counter is equal to zero

The time slot difference from the time slot for sending the first information;

第一位置信息，用于指示第一终端装置的地理位置；The first location information is used to indicate the geographic location of the first terminal device;

可选的，所述装置还包括：确定单元1120，用于根据所述第一信道占用时间信息，确定第一唤醒时间段，所述第一唤醒时间段包括所述第一时频资源包含的全部时隙；Optionally, the apparatus further includes: a determining unit 1120, configured to determine a first wake-up time period according to the first channel occupation time information, where the first wake-up time period includes all time slots;

所述收发单元1110还用于，在所述第一时频资源接收所述第一数据。The transceiving unit 1110 is further configured to receive the first data in the first time-frequency resource.

可选的，所述收发单元1110还用于，在第三时频资源接收来自第一终端装置的第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源；Optionally, the transceiving unit 1110 is further configured to receive second information from the first terminal device at a third time-frequency resource, where the second information includes third indication information, and the third indication information is used to indicate A fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is a time-frequency resource in the second resource pool;

所述装置还包括：处理单元1130，用于根据所述第一信息，在所述第四时频资源包含的时隙休眠。The apparatus further includes: a processing unit 1130 configured to sleep in a time slot included in the fourth time-frequency resource according to the first information.

可选的，所述收发单元1110还用于，获取侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时段包括所述第四时频资源包含的时隙。Optionally, the transceiving unit 1110 is further configured to acquire sidelink discontinuous reception configuration information, where the sidelink discontinuous reception configuration information indicates that the inactive period of sidelink discontinuous reception includes the A time slot included in the fourth time-frequency resource.

本申请实施例提出了一种通信装置1200，如图12所示，出示了本申请实施例的另一种通信装置的示意性框图。该通信装置1200包括处理器1210，所述处理器1210与至少一个存储器1220耦合，所述处理器1210用于读取所述至少一个存储器1220所存储的计算机程序，以执行本申请实施例中任意可能的实现方式中的方法。The embodiment of the present application proposes a communication device 1200 , as shown in FIG. 12 , which shows a schematic block diagram of another communication device according to the embodiment of the present application. The communication device 1200 includes a processor 1210, the processor 1210 is coupled to at least one memory 1220, and the processor 1210 is used to read the computer program stored in the at least one memory 1220, so as to execute any method in a possible implementation.

上述的处理器1210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)、现场可编程门阵列(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。The above-mentioned processor 1210 may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor can be a general-purpose 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 possible Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. 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.

上述的存储器1220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)。The aforementioned memory 1220 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available such as 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 connection dynamic random access memory (synchlink DRAM, SLDRAM ) and direct memory bus random access memory (direct rambus RAM, DR RAM).

本申请实施例提供了一种通信芯片，包括处理器和通信接口，所述处理器用于读取指令或计算机程序以执行本申请实施例中的方法。The embodiment of the present application provides a communication chip, including a processor and a communication interface, and the processor is used to read instructions or computer programs to execute the method in the embodiment of the present application.

本申请实施例提供了一种通信***，包括本申请实施例提供的通信的方法中的第一的终端装置和第二的终端装置。An embodiment of the present application provides a communication system, including a first terminal device and a second terminal device in the communication method provided in the embodiment of the present application.

本申请实施例还提供了一种计算机可读存储介质，其上存储有用于实现本申请实施例中的方法的计算机程序。当该计算机程序在计算机上运行时，使得该计算机可以实现上述方法实施例中的方法。The embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the embodiment of the present application is stored. When the computer program runs on the computer, the computer can implement the methods in the above method embodiments.

本申请实施例还提供了一种计算机程序产品，当其在计算机上运行时，使得该计算机执行本申请实施例中的方法。The embodiment of the present application also provides a computer program product, which, when running on a computer, causes the computer to execute the method in the embodiment of the present application.

可以理解，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。It can be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

可以理解，在本申请中，“当…时”、“若”以及“如果”均指在某种客观情况下装置会做出相应的处理，并非是限定时间，且也不要求装置实现时一定要有判断的动作，也不意味着存在其它限定。It can be understood that in this application, "when", "if" and "if" all mean that the device will make corresponding processing under certain objective circumstances, and it is not a time limit, and it is not required that the device implements a certain The act of judgment does not mean that there are other restrictions.

本领域技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。本申请中的编号(也可被称为索引)的具体取值、数量的具体取值、以及位置仅作为示意的目的，并不是唯一的表示形式，也并不用来限制本申请实施例的范围。本申请中涉及的第一个、第二个等各种数字编号也仅为描述方便进行的区分，并不用来限制本申请实施例的范围。Those skilled in the art can understand that: various numerals such as first and second mentioned in the present application are only for convenience of description, and are not used to limit the scope of the embodiments of the present application. The specific values of the numbers (also referred to as indexes), the specific values of the quantities, and the positions in this application are only for illustrative purposes, not the only form of expression, and are not used to limit the scope of the embodiments of the present application . The various numerals such as the first one and the second number involved in the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

另外，本申请中术语“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；本申请中术语“至少一个”，可以表示“一个”和“两个或两个以上”，例如，A、B和C中至少一个，可以表示：单独存在A，单独存在B，单独存在C、同时存在A和B，同时存在A和C，同时存在C和B，同时存在A和B和C，这七种情况。In addition, the term "and/or" in this application is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist simultaneously , there are three cases of B alone. In addition, the character "/" in this article generally means that the contextual objects are an "or" relationship; the term "at least one" in this application can mean "one" and "two or more", for example, A At least one of , B, and C can mean: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, and A, B, and C exist simultaneously, which Seven situations.

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。本领域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 skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may implement the described functionality using different methods for each particular application, but such implementation should not be considered as exceeding the scope of the present application.

本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***、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 the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which 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***、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***，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 systems, devices and methods may 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. In actual implementation, there may be other division methods. 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.

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 displayed as units may or may not be physical units, that is, they 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, each unit may exist separately physically, 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 described above are realized in the form of software function 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 is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc 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以所述权利要求的保护范围为准。所述权利要求的保护范围为准。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims. The scope of protection of the claims prevails.

Claims

一种数据传输的方法，其特征在于，包括：A method for data transmission, comprising:

执行信道接入流程，用于在第一资源池中的时频资源发送第一数据；Executing a channel access procedure for sending first data on time-frequency resources in the first resource pool;

确定第二资源池的资源选择窗和侦听窗，所述侦听窗在所述资源选择窗之前；determining a resource selection window and a listening window of a second resource pool, the listening window being before the resource selection window;

根据在所述侦听窗的侦听结果，确定所述资源选择窗内所述第二资源池中可用的第二时频资源；determining a second time-frequency resource available in the second resource pool in the resource selection window according to the listening result in the listening window;

在所述第二时频资源向第二终端装置发送第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送所述第一数据的第一时频资源。Sending first information to a second terminal device at the second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate the first time-frequency resource for sending the first data .
根据权利要求1所述的方法，其特征在于，所述确定第二资源池的资源选择窗和侦听窗，包括：The method according to claim 1, wherein said determining the resource selection window and the listening window of the second resource pool comprises:

根据在第一时隙n ₁时第一计数器的数值N _n1，确定所述资源选择窗，所述第一计数器为根据所述信道接入流程确定的用于发送所述第一数据的计数器，其中，所述第一时隙在所述资源选择窗之前，0<N _n1≤N _init，N _init是所述第一计数器的初始值； Determine the resource selection window according to the value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter for sending the first data determined according to the channel access procedure, Wherein, the first time slot is before the resource selection window, 0<N _n1 ≤ N _init , and N _init is the initial value of the first counter;

根据所述资源选择窗确定所述侦听窗。The listening window is determined according to the resource selection window.
根据权利要求2所述的方法，其特征在于，所述资源选择窗的时隙范围为[n ₁+T ₁′,n ₁+T′ ₂]，其中，T ₁′和T′ ₂满足如下公式： The method according to claim 2, wherein the time slot range of the resource selection window is [n ₁ +T ₁ ', n ₁ +T' ₂ ], wherein T ₁ ' and T' ₂ satisfy the following formula:

其中，
为所述第一计数器的数值等于零时所在的时隙，
为大于或等于零的正整数，
为大于零的正整数。 in,
is the time slot where the value of the first counter is equal to zero,
is a positive integer greater than or equal to zero,
is a positive integer greater than zero.
根据权利要求2所述的方法，其特征在于，所述资源选择窗的时隙范围为[n ₁+T ₁′,n ₁+T′ ₂]，其中，T ₁′和T′ ₂满足如下公式： The method according to claim 2, wherein the time slot range of the resource selection window is [n ₁ +T ₁ ', n ₁ +T' ₂ ], wherein T ₁ ' and T' ₂ satisfy the following formula:

其中，
为所述第一计数器的数值等于零时所在的时隙，
为大于或等于零的正整数，
为大于零的正整数，T _BWP为部分带宽的切换时延或载波的切换时延。 in,
is the time slot where the value of the first counter is equal to zero,
is a positive integer greater than or equal to zero,
is a positive integer greater than zero, and T _BWP is the switching delay of a part of the bandwidth or the switching delay of the carrier.
根据权利要求3或4所述的方法，其特征在于，The method according to claim 3 or 4, characterized in that,

其中，T _d为侦听所述第一时频资源是否空闲的延长持续时间，T _sl为侦听时隙时段，m与发送所述第一数据所使用的子载波间隔的大小相关。 Wherein, T _d is an extended duration for monitoring whether the first time-frequency resource is idle, T _sl is a time slot period for monitoring, and m is related to the size of the subcarrier interval used for sending the first data.
根据权利要求3至5中任一项所述的方法，其特征在于，所述侦听窗的时隙范围为
其中，
是确定所述资源选择窗的时延，
是处理所述侦听窗的侦听结果的时延，T ₀用于确定所述侦听窗的长度。 The method according to any one of claims 3 to 5, wherein the time slot range of the listening window is
in,
is the time delay for determining the resource selection window,
is the time delay for processing the interception result of the interception window, and T ₀ is used to determine the length of the interception window.
根据权利要求3至6中任一项所述的方法，其特征在于，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：The method according to any one of claims 3 to 6, wherein the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information:

N _n1； N _n1 ;

第一时隙偏移值信息，用于指示
与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate
The time slot difference from the time slot for sending the first information;

第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；The first channel occupancy time information is used to indicate the channel occupancy time used for sending the first data;

第一位置信息，用于指示第一终端装置的地理位置；The first location information is used to indicate the geographic location of the first terminal device;

第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；The first data identification information is used to identify the sending source and/or sending destination of the first data;

第一装置标识信息，用于标识所述第一终端装置；或，First device identification information, used to identify the first terminal device; or,

第一资源池标识信息，用于指示所述第一资源池。The first resource pool identification information is used to indicate the first resource pool.
根据权利要求1至7中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 7, further comprising:

在第三时频资源向所述第二终端装置发送第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源。Send second information to the second terminal device at the third time-frequency resource, the second information includes third indication information, the third indication information is used to indicate a fourth time-frequency resource, and the fourth time-frequency The resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is a time-frequency resource in the second resource pool .
根据权利要求8所述的方法，其特征在于，所述方法还包括：The method according to claim 8, characterized in that the method further comprises:

根据所述第一信息，向所述第二终端装置发送侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。According to the first information, send sidelink discontinuous reception configuration information to the second terminal device, where the sidelink discontinuous reception configuration information indicates that the inactivation time of sidelink discontinuous reception includes the The time slots included in the fourth time-frequency resource.
一种数据传输的方法，其特征在于，包括：A method for data transmission, comprising:

在第二时频资源接收来自第一终端装置的第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送第一数据的第一时频资源，所述第一时频资源为第一资源池中的时频资源，所述第二时频资源为第二资源池中的时频资源；Receive first information from the first terminal device at the second time-frequency resource, the first information includes first indication information, and the first indication information is used to indicate the first time-frequency resource for sending the first data, the The first time-frequency resource is a time-frequency resource in the first resource pool, and the second time-frequency resource is a time-frequency resource in the second resource pool;

根据所述第一信息，在所述第一时频资源接收所述第一数据。The first data is received at the first time-frequency resource according to the first information.
根据权利要求10所述的方法，其特征在于，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：The method according to claim 10, wherein the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information:

在第一时隙n ₁时第一计数器的数值N _n1，所述第一计数器为用于确定所述第一时频资源的计数器，所述第一时隙在所述第二时频资源包含的时隙之前； The value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter used to determine the first time-frequency resource, and the first time slot contains in the second time-frequency resource before the time slot;

第一时隙偏移值信息，用于指示所述第一计数器的数值等于零时所在的时隙
与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate the time slot where the value of the first counter is equal to zero
The time slot difference from the time slot for sending the first information;

第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；The first channel occupancy time information is used to indicate the channel occupancy time used for sending the first data;

第一位置信息，用于指示第一终端装置的地理位置；The first location information is used to indicate the geographic location of the first terminal device;

第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；The first data identification information is used to identify the sending source and/or sending destination of the first data;

第一装置标识信息，用于标识所述第一终端装置；或，First device identification information, used to identify the first terminal device; or,

第一资源池标识信息，用于指示所述第一资源池。The first resource pool identification information is used to indicate the first resource pool.
根据权利要求11所述的方法，其特征在于，所述根据所述第一信息，在所述第一时频资源接收所述第一数据，包括：The method according to claim 11, wherein the receiving the first data at the first time-frequency resource according to the first information comprises:

根据所述第一信道占用时间信息，确定第一唤醒时间段，determining a first wake-up time period according to the first channel occupancy time information,

所述第一唤醒时间段包括所述第一时频资源包含的全部时隙；The first wake-up time period includes all time slots included in the first time-frequency resource;

在所述第一时频资源接收所述第一数据。The first data is received at the first time-frequency resource.
根据权利要求10至12中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 10 to 12, further comprising:

在第三时频资源接收来自第一终端装置的第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源；Receive second information from the first terminal device at the third time-frequency resource, the second information includes third indication information, the third indication information is used to indicate a fourth time-frequency resource, and the fourth time-frequency resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is a time-frequency resource in the second resource pool;

根据所述第一信息，在所述第四时频资源包含的时隙休眠。Sleeping in the time slot included in the fourth time-frequency resource according to the first information.
根据权利要求13所述的方法，其特征在于，所述方法还包括：The method according to claim 13, further comprising:

获取侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时段包括所述第四时频资源包含的时隙。Acquire sidelink discontinuous reception configuration information, where the sidelink discontinuous reception configuration information indicates that the inactive period of sidelink discontinuous reception includes the time slot included in the fourth time-frequency resource.
一种第一终端装置，其特征在于，包括：A first terminal device, characterized by comprising:

处理单元，用于执行信道接入流程，用于在第一资源池中的时频资源发送第一数据；A processing unit, configured to execute a channel access procedure, configured to send first data on time-frequency resources in the first resource pool;

确定单元，用于确定第二资源池的资源选择窗和侦听窗，所述侦听窗在所述资源选择窗之前；a determining unit, configured to determine a resource selection window and a listening window of the second resource pool, the listening window being before the resource selection window;

所述确定单元还用于，根据在所述侦听窗的侦听结果，确定所述资源选择窗内所述第二资源池中可用的第二时频资源；The determining unit is further configured to, according to the interception result in the interception window, determine the second time-frequency resource available in the second resource pool in the resource selection window;

收发单元，用于在所述第二时频资源向第二终端装置发送第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送所述第一数据的第一时频资源。a transceiver unit, configured to send first information to a second terminal device on the second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate the sending of the first data The first time-frequency resource.
根据权利要求15所述的第一终端装置，其特征在于，所述确定单元具体用于：The first terminal device according to claim 15, wherein the determining unit is specifically configured to:

根据在第一时隙n ₁时第一计数器的数值N _n1，确定所述资源选择窗，所述第一计数器为根据所述信道接入流程确定的用于发送所述第一数据的计数器，其中，所述第一时隙在所述资源选择窗之前，0<N _n1≤N _init，N _init是所述第一计数器的初始值； Determine the resource selection window according to the value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter for sending the first data determined according to the channel access procedure, Wherein, the first time slot is before the resource selection window, 0<N _n1 ≤ N _init , and N _init is the initial value of the first counter;

根据所述资源选择窗确定所述侦听窗。The listening window is determined according to the resource selection window.
根据权利要求16所述的第一终端装置，其特征在于，所述资源选择窗的时隙范围为[n ₁+T ₁′,n ₁+T′ ₂]，其中，T ₁′和T′ ₂满足如下公式： The first terminal device according to claim 16, wherein the time slot range of the resource selection window is [n ₁ +T ₁ ', n ₁ +T' ₂ ], where T ₁ ' and T' ₂ satisfies the following formula:

其中，
为所述第一计数器的数值等于零时所在的时隙，
为大于或等于零的正整数，
为大于零的正整数。 in,
is the time slot where the value of the first counter is equal to zero,
is a positive integer greater than or equal to zero,
is a positive integer greater than zero.
根据权利要求16所述的第一终端装置，其特征在于，所述资源选择窗的时隙范围为[n ₁+T ₁′,n ₁+T′ ₂]，其中，T ₁′和T′ ₂满足如下公式： The first terminal device according to claim 16, wherein the time slot range of the resource selection window is [n ₁ +T ₁ ', n ₁ +T' ₂ ], where T ₁ ' and T' ₂ satisfies the following formula:

其中，
为所述第一计数器的数值等于零时所在的时隙，
为大于或等于零的正整数，
为大于零的正整数，T _BWP为部分带宽的切换时延或载波的切换时延。 in,
is the time slot where the value of the first counter is equal to zero,
is a positive integer greater than or equal to zero,
is a positive integer greater than zero, and T _BWP is the switching delay of a part of the bandwidth or the switching delay of the carrier.
根据权利要求17或18所述的第一终端装置，其特征在于，The first terminal device according to claim 17 or 18, wherein:

其中，T _d为侦听所述第一时频资源是否空闲的延长持续时间，T _sl为侦听时隙时段，m与发送所述第一数据所使用的子载波间隔的大小相关。 Wherein, T _d is an extended duration for monitoring whether the first time-frequency resource is idle, T _sl is a time slot period for monitoring, and m is related to the size of the subcarrier interval used for sending the first data.
根据权利要求17至19中任一项所述的第一终端装置，其特征在于，所述侦听窗的时隙范围为
其中，
是确定所述资源选择窗的时延，
是处理所述侦听窗的侦听结果的时延，T ₀用于确定所述侦听窗的长度。 The first terminal device according to any one of claims 17 to 19, wherein the time slot range of the listening window is
in,
is the time delay for determining the resource selection window,
is the time delay for processing the interception result of the interception window, and T ₀ is used to determine the length of the interception window.
根据权利要求17至20中任一项所述的第一终端装置，其特征在于，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：The first terminal device according to any one of claims 17 to 20, wherein the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information:

N _n1； N _n1 ;

第一时隙偏移值信息，用于指示
与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate
The time slot difference from the time slot for sending the first information;

第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；The first channel occupancy time information is used to indicate the channel occupancy time used for sending the first data;

第一位置信息，用于指示所述第一终端装置的地理位置；first location information, used to indicate the geographic location of the first terminal device;

第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；The first data identification information is used to identify the sending source and/or sending destination of the first data;

第一装置标识信息，用于标识所述第一终端装置；或，First device identification information, used to identify the first terminal device; or,

第一资源池标识信息，用于指示所述第一资源池。The first resource pool identification information is used to indicate the first resource pool.
根据权利要求15至21中任一项所述的第一终端装置，其特征在于，The first terminal device according to any one of claims 15 to 21, characterized in that,

所述收发单元还用于，在第三时频资源向所述第二终端装置发送第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源。The transceiver unit is further configured to send second information to the second terminal device in the third time-frequency resource, the second information includes third indication information, and the third indication information is used to indicate the fourth time-frequency resource, the fourth time-frequency resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is the first time-frequency resource Time-frequency resources in the second resource pool.
根据权利要求22所述的第一终端装置，其特征在于，The first terminal device according to claim 22, wherein:

所述收发单元还用于，根据所述第一信息，向所述第二终端装置发送侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时间包括所述第四时频资源包含的时隙。The transceiver unit is further configured to, according to the first information, send sidelink discontinuous reception configuration information to the second terminal device, where the sidelink discontinuous reception configuration information indicates that the sidelink discontinuous reception configuration information indicates that the sidelink discontinuous reception configuration information indicates that the sidelink discontinuous reception The inactive time of continuous reception includes the time slots included in the fourth time-frequency resource.
一种第二终端装置，其特征在于，包括：A second terminal device, characterized by comprising:

收发单元，用于在第二时频资源接收来自第一终端装置的第一信息，所述第一信息包括第一指示信息，所述第一指示信息用于指示发送第一数据的第一时频资源，所述第一时频资源为第一资源池中的时频资源，所述第二时频资源为第二资源池中的时频资源；A transceiver unit, configured to receive first information from a first terminal device at a second time-frequency resource, where the first information includes first indication information, and the first indication information is used to indicate the first time when the first data is sent Frequency resources, the first time-frequency resources are time-frequency resources in the first resource pool, and the second time-frequency resources are time-frequency resources in the second resource pool;

所述收发单元还用于，根据所述第一信息，在所述第一时频资源接收所述第一数据。The transceiving unit is further configured to receive the first data in the first time-frequency resource according to the first information.
根据权利要求24所述的第二终端装置，其特征在于，所述第一信息还包括第二指示信息，所述第二指示信息还用于指示以下至少一种信息：The second terminal device according to claim 24, wherein the first information further includes second indication information, and the second indication information is also used to indicate at least one of the following information:

在第一时隙n ₁时第一计数器的数值N _n1，所述第一计数器为用于确定所述第一时频资源的计数器，所述第一时隙在所述第二时频资源包含的时隙之前； The value N _n1 of the first counter at the first time slot n ₁ , the first counter is a counter used to determine the first time-frequency resource, and the first time slot contains in the second time-frequency resource before the time slot;

第一时隙偏移值信息，用于指示所述第一计数器的数值等于零时所在的时隙
与发送所述第一信息的时隙的时隙差值； First time slot offset value information, used to indicate the time slot where the value of the first counter is equal to zero
The time slot difference from the time slot for sending the first information;

第一信道占用时间信息，用于指示发送所述第一数据所使用的信道占用时间；The first channel occupancy time information is used to indicate the channel occupancy time used for sending the first data;

第一位置信息，用于指示第一终端装置的地理位置；The first location information is used to indicate the geographic location of the first terminal device;

第一数据标识信息，用于标识所述第一数据的发送源和/或发送目的地；The first data identification information is used to identify the sending source and/or sending destination of the first data;

第一装置标识信息，用于标识所述第一终端装置；或，First device identification information, used to identify the first terminal device; or,

第一资源池标识信息，用于指示所述第一资源池。The first resource pool identification information is used to indicate the first resource pool.
根据权利要求25所述的第二终端装置，其特征在于，The second terminal device according to claim 25, wherein:

所述第二终端装置还包括：确定单元，用于根据所述第一信道占用时间信息，确定第一唤醒时间段，所述第一唤醒时间段包括所述第一时频资源包含的全部时隙；The second terminal device further includes: a determining unit, configured to determine a first wake-up time period according to the first channel occupation time information, and the first wake-up time period includes all time periods included in the first time-frequency resource. gap;

所述收发单元还用于，在所述第一时频资源接收所述第一数据。The transceiving unit is further configured to receive the first data in the first time-frequency resource.
根据权利要求24至26中任一项所述的第二终端装置，其特征在于，The second terminal device according to any one of claims 24 to 26, characterized in that,

所述收发单元还用于，在第三时频资源接收来自第一终端装置的第二信息，所述第二信息包括第三指示信息，所述第三指示信息用于指示第四时频资源，所述第四时频资源为所述第一资源池中的时频资源，所述第四时频资源在所述第一时频资源之前，所述第三时频资源为所述第二资源池中的时频资源；The transceiver unit is further configured to receive second information from the first terminal device at the third time-frequency resource, the second information includes third indication information, and the third indication information is used to indicate the fourth time-frequency resource , the fourth time-frequency resource is a time-frequency resource in the first resource pool, the fourth time-frequency resource is before the first time-frequency resource, and the third time-frequency resource is the second time-frequency resource Time-frequency resources in the resource pool;

所述第二终端装置还包括：处理单元，用于根据所述第一信息，在所述第四时频资源包含的时隙休眠。The second terminal device further includes: a processing unit configured to sleep in a time slot included in the fourth time-frequency resource according to the first information.
根据权利要求27所述的第二终端装置，其特征在于，The second terminal device according to claim 27, wherein:

所述收发单元还用于，获取侧行链路非连续接收配置信息，所述侧行链路非连续接收配置信息指示侧行链路非连续接收的非激活时段包括所述第四时频资源包含的时隙。The transceiver unit is further configured to acquire sidelink discontinuous reception configuration information, where the sidelink discontinuous reception configuration information indicates that the inactive period of sidelink discontinuous reception includes the fourth time-frequency resource Included time slots.
一种通信装置，其特征在于，包括处理器，所述处理器与至少一个存储器耦合，所述处理器用于读取所述至少一个存储器所存储的计算机程序，以执行如权利要求1至9中任意一项所述的方法，或执行如权利要求10至14中任意一项所述的方法。A communication device, characterized by comprising a processor, the processor is coupled to at least one memory, and the processor is used to read the computer program stored in the at least one memory to execute the The method according to any one, or perform the method according to any one of claims 10 to 14.
一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至9中任意一项所述的方法，或者使得所述计算机执行如权利要求10至14中任意一项所述的方法。A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program, and when the computer program is run on a computer, the computer executes any one of claims 1 to 9. The method described in claim 1, or causing the computer to execute the method described in any one of claims 10-14.
一种计算机程序产品，当其在计算机上运行时，使得该计算机执行如权利要求1至9中任意一项所述的方法，或者使得所述计算机执行如权利要求10至14中任意一项所述的方法。A computer program product that, when run on a computer, causes the computer to execute the method as claimed in any one of claims 1 to 9, or causes the computer to execute the method described in any one of claims 10 to 14. described method.
一种芯片，其特征在于，包括处理器和通信接口，所述处理器用于读取指令或计算机程序以执行如权利要求1至9中任意一项所述的方法，或者使得所述计算机执行如权利要求10至14中任意一项所述的方法。A chip, characterized in that it includes a processor and a communication interface, the processor is used to read instructions or computer programs to perform the method according to any one of claims 1 to 9, or make the computer perform the following A method as claimed in any one of claims 10 to 14.
一种通信***，其特征在于，包括如权利要求15至23中任意一项所述的第一终端装置，以及包括如权利要求24至28中任意一项所述第二终端装置。A communication system, characterized by comprising the first terminal device according to any one of claims 15 to 23, and comprising the second terminal device according to any one of claims 24 to 28.