WO2022011718A1 - Communication method and apparatus - Google Patents

Abstract

Provided in the embodiments of the present application are a communication method and apparatus, used for solving the problem of high base station multicast resource overheads during data retransmission, and relating to the technical field of wireless communication. In the present method, a first communication apparatus can receive first data sent by a network device. The first communication apparatus can also receive first indication information sent by a second communication apparatus, and send second data on the basis of the first indication information. The second data may be retransmission data of the first data. The second communication apparatus is a cluster head node, and the first communication apparatus is a cluster member node of the second communication apparatus. On the basis of the present solution, when a terminal device in the cluster has not received the data sent by the network device or has not accurately parsed the data sent by the network device, data retransmission can be implemented by another terminal device in the cluster that has successfully received or successfully parsed the data sent by the network device, thereby saving base station multicast resource overheads.

Description

Translated fromChinese

一种通信方法和装置A communication method and device技术领域technical field

本申请涉及无线通信技术领域，尤其涉及一种通信方法和装置。The present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.

背景技术Background technique

目前，在网络设备和终端设备通信时，如果终端设备没有正确解码网络设备发送的数据，则需要进行数据重传。现有的下行传输以及数据重传方案可以如下所示：At present, when a network device communicates with a terminal device, if the terminal device does not correctly decode the data sent by the network device, data retransmission needs to be performed. The existing downlink transmission and data retransmission schemes can be as follows:

网络设备发送调度物理下行共享信道(physical downlink shared channel，PDSCH)的下行控制信息(downlink control information，DCI)，以及发送PDSCH。终端设备检测DCI，并根据DCI的指示接收上述PDSCH。若正确解码到该PDSCH，则在PDSCH之后的某个时隙中通过物理上行控制信道(physical uplink control channel，PUCCH)向网络设备反馈上行控制信息(uplink control information，UCI)。若终端设备通过UCI向网络设备反馈的内容为未正确解码(NACK)，则网络设备可以进行一次数据重传。其中，数据重传与初传的关系可以通过DCI中的混合自动请求重传(hybrid automatic request，HARQ)进程号、新数据标识(new data indicator，NDI)等字段体现。如果终端设备正确解码到该重传的数据，可以通过UCI向网络设备反馈正确解码(ACK)，否则可以通过UCI向网络设备反馈未正确解码(NACK)。如果终端设备还是未正确解码重传的数据，网络设备还可以进行第二次数据重传。The network device sends downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), and sends the PDSCH. The terminal device detects the DCI, and receives the above PDSCH according to the indication of the DCI. If the PDSCH is correctly decoded, the uplink control information (UCI) is fed back to the network device through a physical uplink control channel (PUCCH) in a certain time slot after the PDSCH. If the content fed back by the terminal device to the network device through the UCI is incorrectly decoded (NACK), the network device may perform a data retransmission. Among them, the relationship between data retransmission and initial transmission can be reflected by fields such as hybrid automatic request (HARQ) process ID and new data indicator (NDI) in DCI. If the terminal device correctly decodes the retransmitted data, it can feedback correct decoding (ACK) to the network device through UCI, otherwise it can feedback incorrect decoding (NACK) to the network device through UCI. If the terminal device still does not correctly decode the retransmitted data, the network device may also perform a second data retransmission.

目前，长期演进(long term evolution，LTE)和5G新无线(new radio，NR)标准支持设备到设备(device-to-device，D2D)利用侧链路(sidelink)直接通信。一些场景中，终端设备与终端设备有成簇通信的需求。一个簇中，通常有一个能力较高或电量充足的终端设备作为簇头，其他终端设备作为簇成员。Currently, long term evolution (LTE) and 5G new radio (NR) standards support device-to-device (D2D) direct communication using sidelinks. In some scenarios, terminal devices need to communicate with terminal devices in clusters. In a cluster, there is usually a terminal device with high capability or sufficient power as the cluster head, and other terminal devices as cluster members.

当簇内的终端设备未能正确解码网络设备发送的数据时，簇内终端向网络设备进行反馈，网络设备根据反馈信息确定是否重传。若每个簇内终端的每次未正确接收，均由基站进行组播重传，则基站组播资源的开销较大，且增加了已正确接收的簇内终端的资源开销。When the terminal device in the cluster fails to correctly decode the data sent by the network device, the terminal in the cluster sends feedback to the network device, and the network device determines whether to retransmit according to the feedback information. If the terminal in each cluster does not receive correctly every time, the base station performs the multicast retransmission, and the overhead of the base station's multicast resources is relatively large, and the resource overhead of the terminal in the cluster that has been correctly received is increased.

发明内容SUMMARY OF THE INVENTION

本申请提供一种通信方法和装置，用于解决进行组播重传时，基站组播资源开销较大的问题。The present application provides a communication method and device, which are used to solve the problem that the base station's multicast resource overhead is relatively large when multicast retransmission is performed.

第一方面，本申请实施例提供一种通信方法。该方法可以由第一通信装置执行，也可以由具备第一通信装置功能的芯片来执行。其中，第一通信装置可以是终端设备，也可以是类似于终端设备的功能的装置。该方法中，第一通信装置可以接收网络设备发送的第一数据。该第一通信装置还可以接收第二通信装置发送的第一指示信息，并根据该第一指示信息发送第二数据。其中，第二数据可以是第一数据的重传数据。这里的重传数据可以是与第一数据完全相同的数据，或者还可以是第一数据的不同冗余版本的数据。该方法中，第二通信装置是簇头节点，第一通信装置是第二通信装置的簇成员节点。In a first aspect, an embodiment of the present application provides a communication method. The method may be executed by the first communication device, or may be executed by a chip having the function of the first communication device. Wherein, the first communication device may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the first communication apparatus may receive the first data sent by the network device. The first communication apparatus may also receive first indication information sent by the second communication apparatus, and send second data according to the first indication information. The second data may be retransmission data of the first data. The retransmitted data here may be the same data as the first data, or may also be data of different redundant versions of the first data. In this method, the second communication device is a cluster head node, and the first communication device is a cluster member node of the second communication device.

基于该方案，在簇内的终端设备没有接收到网络设备发送的数据或者没有正确解码网络设备发送的数据时，可以由成功接收或者成功解码网络设备所发送的数据的簇内其他终 端设备进行数据重传，由此可以节省基站组播资源的开销。Based on this solution, when the terminal device in the cluster does not receive the data sent by the network device or does not correctly decode the data sent by the network device, other terminal devices in the cluster that successfully receive or decode the data sent by the network device can perform data processing. retransmission, thereby saving the overhead of base station multicast resources.

在一种可能的实现方式中，第一指示信息包括第一进程号和进程号含义指示信息。这里的进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。例如，第一指示信息包括进程号混合自动请求重传(hybrid automatic request，HARQ)-15，且进程号含义指示信息指示该HARQ-15是下行组播进程号，那么第一通信装置则可以根据该第一指示信息，发送第二数据。这里的第二数据可以是HARQ-15进程的组播数据的重传数据。In a possible implementation manner, the first indication information includes the first process number and the process number meaning indication information. The process number meaning indication information here indicates that the first process number is the process number used by the network device to send the first data. For example, the first indication information includes a process number hybrid automatic request (HARQ)-15, and the process number meaning indication information indicates that the HARQ-15 is a downlink multicast process number, then the first communication device can be based on The first indication information sends second data. The second data here may be retransmission data of the multicast data of the HARQ-15 process.

基于该方案，可以在第一指示信息中增加进程号含义指示信息的字段，用于指示重传哪一个数据，可以使得簇内的终端设备区分第二数据是下行组播数据的重传数据还是簇内的数据。簇内的数据是指簇内终端间相互收发的数据，可以与下行组播数据无关。Based on this solution, a field of process number meaning indication information can be added to the first indication information to indicate which data to retransmit, so that the terminal devices in the cluster can distinguish whether the second data is the retransmission data of the downlink multicast data or the retransmission data of the downlink multicast data. data within the cluster. The data in the cluster refers to the data sent and received between the terminals in the cluster, and may not be related to the downlink multicast data.

在一种可能的实现方式中，第一指示信息包括第二进程号和第三进程号。该第二进程号用于指示所述第一通信装置发送所述第二数据所使用的进程号，该第三进程号指示所述网络设备发送所述第一数据所使用的进程号。例如，第一指示信息包括第二进程号侧链路(sidelink，SL)-HARQ-1和第三进程号下行链路(down link，DL)-HARQ-15，那么第一通信装置则可以使用SL-HARQ-1进程发送第二数据。该第二数据是DL-HARQ-1进程的组播数据的重传数据。本申请实施例中，SL-HARQ-1表示sidelink HARQ进程号为1，DL-HARQ-15进程表示下行HARQ进程号为15，其他进程号的表示以此类推，不再赘述。应理解，本申请实施例中提供的进程号是示例性的，并不构成对具体的进程号的限定。In a possible implementation manner, the first indication information includes the second process number and the third process number. The second process number is used to indicate the process number used by the first communication apparatus to send the second data, and the third process number is used to indicate the process number used by the network device to send the first data. For example, the first indication information includes the second process ID side link (sidelink, SL)-HARQ-1 and the third process ID downlink (down link, DL)-HARQ-15, then the first communication device can use The SL-HARQ-1 process sends the second data. The second data is retransmission data of the multicast data of the DL-HARQ-1 process. In the embodiment of the present application, SL-HARQ-1 indicates that the sidelink HARQ process number is 1, the DL-HARQ-15 process indicates that the downlink HARQ process number is 15, and other process numbers are represented by analogy, which will not be repeated. It should be understood that the process numbers provided in the embodiments of the present application are exemplary, and do not constitute limitations on specific process numbers.

基于该方案，可以在第一指示信息携带第二进程号和第三进程号，用于指示数据重传时的进程以及指示重传的数据，可以使得簇内的终端设备区分簇内的数据和组播的数据。Based on this solution, the second process number and the third process number can be carried in the first indication information, which are used to indicate the process of data retransmission and the data to be retransmitted, so that the terminal device in the cluster can distinguish the data in the cluster and the data in the cluster. multicast data.

在一种可能的实现方式中，该第一指示信息包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。例如，第一信息可以是一个标识，用于指示第一数据和第二数据是否可以合并。比如，第一信息为“0”时，第一数据和第二数据可以合并接收，第一信息为“1”时，第一数据和第二数据不可以合并接收。或者，第一信息为“1”时，第一数据和第二数据可以合并接收，第一信息为“0”时，第一数据和第二数据不可以合并接收。应理解，第一信息还可以用其他方式实现，本申请不做具体限定。In a possible implementation manner, the first indication information includes first information, where the first information is used to indicate whether the first data and the second data can be received in combination. For example, the first information may be an identifier for indicating whether the first data and the second data can be combined. For example, when the first information is "0", the first data and the second data can be received in combination, and when the first information is "1", the first data and the second data cannot be received in combination. Alternatively, when the first information is "1", the first data and the second data can be received in combination, and when the first information is "0", the first data and the second data cannot be received in combination. It should be understood that the first information may also be implemented in other manners, which are not specifically limited in this application.

举例来说，第一指示信息中包含HARQ-1，进程号含义指示信息指示该HARQ-1是下行组播进程号，第一信息指示第一数据和第二数据可以合并接收。那么第一通信装置则可以发送第二数据，该第二数据是HARQ-1进程的组播数据的重传数据，且该重传数据可以与下行组播HARQ-1进程的组播数据合并接收。又例如，第一指示信息中包含SL-HARQ-15和DL-HARQ-1，第一信息指示第一数据和第二数据不可以合并接收。那么，第一通信装置则可以采用SL-HARQ-15进程发送DL-HARQ-1进程的组播数据的重传数据。该重传数据和DL-HARQ-1进程的组播数据不可以合并接收。For example, the first indication information includes HARQ-1, the process number meaning indication information indicates that the HARQ-1 is a downlink multicast process number, and the first information indicates that the first data and the second data can be received in combination. Then the first communication device can send second data, the second data is the retransmission data of the multicast data of the HARQ-1 process, and the retransmission data can be received in combination with the multicast data of the downlink multicast HARQ-1 process . For another example, the first indication information includes SL-HARQ-15 and DL-HARQ-1, and the first information indicates that the first data and the second data cannot be received in combination. Then, the first communication apparatus may use the SL-HARQ-15 process to send the retransmission data of the multicast data of the DL-HARQ-1 process. The retransmission data and the multicast data of the DL-HARQ-1 process cannot be received in combination.

另外需要说明的是，HARQ-1可以表示一个进程，该进程的进程号为1，可以通过进程号含义指示信息指示该HARQ-1是侧链路进程的进程号还是下行组播进程的进程号。In addition, it should be noted that HARQ-1 can represent a process, the process number of the process is 1, and the HARQ-1 can be indicated by the process number meaning indication information whether the HARQ-1 is the process number of the side link process or the process number of the downlink multicast process. .

基于该方案，可以通过第一信息指示重传数据和组播数据是否可以合并接收，簇内的终端设备则可以根据该第一信息确定是否合并接收重传数据和组播数据。Based on this solution, whether the retransmission data and the multicast data can be received in combination can be indicated by the first information, and the terminal device in the cluster can determine whether to combine the reception of the retransmission data and the multicast data according to the first information.

在一种可能的实现方式中，第一指示信息还可以包括第二信息。该第二信息用于指示第一通信装置发送所述第二数据。例如，第一指示信息中包含进程号HARQ-1，进程号含义指示信息指示HARQ-1为下行组播进程号，第一指示信息还包括第二信息。因此，第一 通信装置可以发送进程HARQ-1的数据的重传数据。又例如，第一指示信息中包含进程号SL-HARQ-1和进程号DL-HARQ-10，第一信息还包括第二信息。因此，第一通信装置可以使用SL-HARQ-1进程发送进程DL-HARQ-10的数据的重传数据。In a possible implementation manner, the first indication information may further include second information. The second information is used to instruct the first communication device to send the second data. For example, the first indication information includes a process number HARQ-1, the process number meaning indication information indicates that HARQ-1 is a downlink multicast process number, and the first indication information further includes second information. Therefore, the first communication device may transmit retransmission data of the data of the process HARQ-1. For another example, the first indication information includes the process ID SL-HARQ-1 and the process ID DL-HARQ-10, and the first information further includes the second information. Therefore, the first communication device may transmit retransmission data of the data of the process DL-HARQ-10 using the SL-HARQ-1 process.

基于该方案，可以通过第一指示信息中的第二信息指示第一通信装置发送组播数据的重传数据。Based on this solution, the first communication apparatus may be instructed to send the retransmission data of the multicast data through the second information in the first indication information.

在一种可能的实现方式中，在第一通信装置接收第二通信装置发送的第一指示信息之前，第一通信装置还可以发送第三指示信息。该第三指示信息可以用于指示第一通信装置已正确解码所述第一数据。In a possible implementation manner, before the first communication apparatus receives the first indication information sent by the second communication apparatus, the first communication apparatus may also send third indication information. The third indication information may be used to indicate that the first communication apparatus has correctly decoded the first data.

基于该方案，簇内的簇头终端设备可以根据簇成员终端设备发送的第三指示信息，确定哪些簇成员终端设备正确解码组播数据，簇头终端设备则可以向正确解码组播数据的簇成员终端设备发送第一指示信息，使得正确解码组播数据的簇成员终端设备重传组播数据。Based on this solution, the cluster head terminal equipment in the cluster can determine which cluster member terminal equipment correctly decodes the multicast data according to the third indication information sent by the cluster member terminal equipment, and the cluster head terminal equipment can send the data to the cluster that correctly decodes the multicast data. The member terminal device sends the first indication information, so that the cluster member terminal device that correctly decodes the multicast data retransmits the multicast data.

在一种可能的实现方式中，第一通信装置还可以进行第二次、第三次等多次重传。第一通信装置可以接收第二通信装置发送的第四指示信息。其中，该第四指示信息可以与第二指示信息相同。第一通信装置可以根据第四指示信息发送第三数据。该第三数据是网络设备发送的第一数据的重传数据。In a possible implementation manner, the first communication apparatus may further perform multiple retransmissions such as the second, third and so on. The first communication apparatus may receive the fourth indication information sent by the second communication apparatus. Wherein, the fourth indication information may be the same as the second indication information. The first communication apparatus may send the third data according to the fourth indication information. The third data is retransmission data of the first data sent by the network device.

基于该方案，第一通信装置可以根据簇头终端设备的指示对组播数据进行第二次、第三次等多次的重传。Based on this solution, the first communication apparatus can retransmit the multicast data for the second time, the third time, etc. multiple times according to the instruction of the cluster head terminal device.

在一种可能的实现方式中，第一通信装置还可以发送第二指示信息。其中，该第二指示信息可以包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。或者，所述第二指示信息包括第二进程号和第三进程号，其中，所述第二进程号为第一通信装置发送所述第二数据时使用的进程号，所述第三进程号为所述网络设备发送所述第一数据所使用的进程号。该第二指示信息，可以使得簇内的终端设备根据该第二指示信息接收第二数据。In a possible implementation manner, the first communication apparatus may also send second indication information. The second indication information may include a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is the process number used by the network device to send the first data . Or, the second indication information includes a second process number and a third process number, wherein the second process number is the process number used when the first communication device sends the second data, and the third process number The process number used by the network device to send the first data. The second indication information enables the terminal devices in the cluster to receive the second data according to the second indication information.

基于该方案，簇内的终端设备可以根据第一通信装置发送的第二指示信息接收第二数据，也即可以根据第二指示信息接收组播数据的重传数据。Based on this solution, the terminal equipment in the cluster can receive the second data according to the second indication information sent by the first communication apparatus, that is, can receive the retransmission data of the multicast data according to the second indication information.

第二方面，本申请实施例还提供一种通信方法。该方法可以由第二通信装置执行，也可以由具备第二通信装置功能的芯片来执行。其中，第二通信装置可以是终端设备，也可以是类似于终端设备的功能的装置。该方法中，第二通信装置可以发送第一指示信息，该第一指示信息用于调度簇成员节点重传网络设备所发送的数据。第二通信装置可以接收第一通信装置发送的第二数据。该第二数据可以是前述网络设备所发送的数据的重传数据。这里的第二通信装置可以是簇头节点，第一通信装置可以是第二通信装置的簇成员节点。In a second aspect, an embodiment of the present application further provides a communication method. The method may be executed by the second communication device, or may be executed by a chip having the function of the second communication device. Wherein, the second communication device may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the second communication apparatus may send first indication information, where the first indication information is used to schedule the cluster member node to retransmit the data sent by the network device. The second communication device may receive the second data sent by the first communication device. The second data may be retransmission data of the data sent by the aforementioned network device. The second communication device here may be a cluster head node, and the first communication device may be a cluster member node of the second communication device.

基于该方案，在簇头节点没有接收到网络设备发送的数据或者没有正确解码网络设备发送的数据时，簇头节点可以调度成功接收或成功解码网络设备所发送的数据的簇内其他终端设备进行重传，由此可以节省基站组播资源的开销。Based on this scheme, when the cluster head node does not receive the data sent by the network device or does not correctly decode the data sent by the network device, the cluster head node can schedule other terminal devices in the cluster that successfully receive or decode the data sent by the network device. retransmission, thereby saving the overhead of base station multicast resources.

在一种可能的实现方式中，该第一指示信息可以包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the first indication information may include a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is for the network device to send the first process number. A process ID used by the data.

基于该方案，可以在第一指示信息中增加进程号含义指示信息的字段，用于指示重传哪一个数据，可以使得簇内的其他终端设备区分第二数据是下行组播数据的重传数据还是簇内的数据。Based on this solution, a field of process number meaning indication information can be added to the first indication information to indicate which data to retransmit, so that other terminal devices in the cluster can distinguish that the second data is the retransmission data of downlink multicast data or data within the cluster.

在一种可能的实现方式中，该第一指示信息可以包括第二进程号和第三进程号，所述第二进程号用于指示所述第一通信装置发送所述第二数据时使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the first indication information may include a second process number and a third process number, where the second process number is used to indicate the first communication device to use when sending the second data A process number, where the third process number indicates a process number used by the network device to send the first data.

基于该方案，可以在第一指示信息携带第二进程号和第三进程号，用于指示数据重传时的进程以及指示重传的数据，可以使得簇内的其他终端社比起区分簇内的数据和组播数据的重传数据。Based on this solution, the second process number and the third process number can be carried in the first indication information to indicate the process of data retransmission and the data to be retransmitted, so that other terminals in the cluster can be compared with each other within the cluster. data and retransmission data of multicast data.

在一种可能的实现方式中，该第一指示信息可以包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。In a possible implementation manner, the first indication information may include first information, where the first information is used to indicate whether the first data and the second data can be received in combination.

基于该方案，可以通过第一信息指示重传数据和组播数据是否可以合并接收，簇内的终端设备则可以根据该第一信息确定是否合并接收重传数据和组播数据。Based on this solution, whether the retransmission data and the multicast data can be received in combination can be indicated by the first information, and the terminal device in the cluster can determine whether to combine the reception of the retransmission data and the multicast data according to the first information.

在一种可能的实现方式中，该第一指示信息可以包括第二信息；所述第二信息用于指示所述第一通信装置发送所述第二数据。In a possible implementation manner, the first indication information may include second information; the second information is used to instruct the first communication apparatus to send the second data.

基于该方案，可以通过第一指示信息中的第二信息指示第一通信装置发送组播数据的重传数据。Based on this solution, the first communication apparatus may be instructed to send the retransmission data of the multicast data through the second information in the first indication information.

在一种可能的实现方式中，在所述第二通信装置向所述第一通信装置发送第一指示信息之前，所述第二通信装置还可以接收第三指示信息。该第三指示信息用于指示所述第一通信装置正确解码所述网络设备发送的所述第一数据。In a possible implementation manner, before the second communication apparatus sends the first indication information to the first communication apparatus, the second communication apparatus may further receive third indication information. The third indication information is used to instruct the first communication apparatus to correctly decode the first data sent by the network device.

基于该方案，簇内的簇成员终端设备可以向簇头设备发送第三指示信息，以使簇头设备确定哪些簇成员设备已正确解码组播数据，簇头终端设备则可以向正确解码组播数据的簇成员终端设备发送第一指示信息，使得正确解码组播数据的簇成员设备重传组播数据。Based on this solution, the cluster member terminal devices in the cluster can send the third indication information to the cluster head device, so that the cluster head device can determine which cluster member devices have correctly decoded the multicast data, and the cluster head terminal device can send the correct decoding multicast data to the cluster head device. The cluster member terminal device of the data sends the first indication information, so that the cluster member device that correctly decodes the multicast data retransmits the multicast data.

在一种可能的实现方式中，第二通信装置还可以发送第五指示信息。该第五指示信息用于指示所述第二通信装置和/或所述第二通信装置的簇成员节点未正确解码所述网络设备发送的数据。In a possible implementation manner, the second communication apparatus may also send fifth indication information. The fifth indication information is used to indicate that the second communication apparatus and/or a cluster member node of the second communication apparatus does not correctly decode the data sent by the network device.

基于该方案，网络设备可以根据第五指示信息确定簇内的终端设备是否正确解码组播数据。Based on this solution, the network device can determine whether the terminal device in the cluster correctly decodes the multicast data according to the fifth indication information.

在一种可能的实现方式中，第二通信装置还可以发送第四指示信息。第二通信装置还可以接收所述第一通信装置发送的第三数据；所述第三数据是所述第一数据的重传数据。In a possible implementation manner, the second communication apparatus may also send fourth indication information. The second communication device may also receive third data sent by the first communication device; the third data is retransmission data of the first data.

基于该方案，第一通信装置可以根据簇头终端设备的指示对组播数据进行第二次、第三次等多次的重传。Based on this solution, the first communication apparatus can retransmit the multicast data for the second time, the third time, etc. multiple times according to the instruction of the cluster head terminal device.

在一种可能的实现方式中，第二通信装置可以接收第二指示信息，其中，所述第二指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。或者，所述第二指示信息包括第二进程号和第三进程号，其中，所述第二进程号为第一通信装置发送所述第二数据时使用的进程号，所述第三进程号为所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the second communication apparatus may receive second indication information, wherein the second indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates the The first process number is the process number used by the network device to send the first data. Or, the second indication information includes a second process number and a third process number, wherein the second process number is the process number used when the first communication device sends the second data, and the third process number The process number used by the network device to send the first data.

基于该方案，簇内的其他终端设备可以根据第一通信装置发送的第二指示信息接收第二数据，也即可以根据第二指示信息接收组播数据的重传数据。Based on this solution, other terminal devices in the cluster can receive the second data according to the second indication information sent by the first communication apparatus, that is, can receive retransmission data of the multicast data according to the second indication information.

第三方面，本申请实施例提供另一种通信方法。该方法可以由本申请实施例提供的第三通信装置执行，也可以由具备第三通信装置功能的芯片来执行。其中，该第三通信装置可以是终端设备，也可以是类似于终端设备的功能的设备。该方法中，第三通信装置可以 接收第二指示信息。第三通信装置可以根据该第二指示信息接收第一通信装置发送的第二数据。这里的第二数据是网络设备发送的第一数据的重传数据。第二指示信息可以包括第二数据所对应的进程号信息，该进程号信息可以是下行组播进程号信息或者侧链路进程号信息。第三通信装置和第一通信装置均是同一个簇的簇成员节点。In a third aspect, the embodiments of the present application provide another communication method. The method may be executed by the third communication apparatus provided in the embodiment of the present application, or may be executed by a chip having the function of the third communication apparatus. Wherein, the third communication apparatus may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the third communication device may receive the second indication information. The third communication apparatus may receive the second data sent by the first communication apparatus according to the second indication information. The second data here is retransmission data of the first data sent by the network device. The second indication information may include process number information corresponding to the second data, and the process number information may be downlink multicast process number information or side link process number information. Both the third communication device and the first communication device are cluster member nodes of the same cluster.

基于该方案，在簇内的终端设备没有接收到网络设备发送的数据或者没有正确解码网络设备发送的数据时，可以由成功接收到网络设备的数据或者正确解码网络设备的数据的簇内的其他终端设备进行数据重传，由此可以节省基站组播资源的开销。Based on this solution, when the terminal device in the cluster has not received the data sent by the network device or has not correctly decoded the data sent by the network device, other devices in the cluster that have successfully received the data of the network device or correctly decoded the data of the network device can The terminal equipment performs data retransmission, thereby saving the overhead of base station multicast resources.

在一种可能的实现方式中，第三通信装置还可以接收第一指示信息。该第一指示信息中可以包括第一通信装置的标识。基于该方案，第三通信装置可以根据第一指示信息确定发送第二数据的第一通信装置的标识。In a possible implementation manner, the third communication apparatus may also receive the first indication information. The first indication information may include the identifier of the first communication apparatus. Based on this solution, the third communication apparatus may determine the identity of the first communication apparatus that sends the second data according to the first indication information.

在一种可能的实现方式中，第三通信装置可以向簇头节点发送第六指示信息。该第六指示信息用于指示簇头节点所述第三通信装置未正确解码第一数据。In a possible implementation manner, the third communication apparatus may send sixth indication information to the cluster head node. The sixth indication information is used to indicate that the third communication device of the cluster head node does not correctly decode the first data.

基于该方案，簇内的簇成员终端设备可以向簇头终端设备发送是否正确解码组播数据的指示信息，以使簇头终端设备确定哪些簇成员终端设备已正确解码组播数据，由此确定由哪个簇内的终端设备进行组播数据的数据重传。Based on this solution, the cluster member terminal equipment in the cluster can send the indication information of whether the multicast data is correctly decoded to the cluster head terminal equipment, so that the cluster head terminal equipment can determine which cluster member terminal equipment has correctly decoded the multicast data, thereby determining In which cluster the terminal device performs the data retransmission of the multicast data.

在一种可能的实现方式中，第二指示信息可以包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the second indication information may include a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is for the network device to send the first process number. The process number used by the data.

基于该方案，可以在第二指示信息中增加进程号含义指示信息的字段，用于指示重传哪一个数据，可以使得簇内的终端设备区分第二数据是下行组播数据的重传数据还是簇内的数据。Based on this solution, a field of process number meaning indication information can be added to the second indication information to indicate which data to retransmit, so that the terminal devices in the cluster can distinguish whether the second data is the retransmission data of the downlink multicast data or the retransmission data of the downlink multicast data. data within the cluster.

在一种可能的实现方式中，第二指示信息可以包括第二进程号和第三进程号，所述第二进程号用于指示所述第一通信装置发送所述第二数据所使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the second indication information may include a second process number and a third process number, where the second process number is used to indicate a process used by the first communication apparatus to send the second data number, and the third process number indicates the process number used by the network device to send the first data.

基于该方案，可以在第二指示信息携带第二进程号和第三进程号，用于指示数据重传时的进程以及指示重传的数据，可以使得簇内的终端设备区分簇内的数据和组播的数据。Based on this solution, the second indication information can carry the second process number and the third process number, which are used to indicate the process of data retransmission and the data to be retransmitted, so that the terminal device in the cluster can distinguish the data in the cluster and the data in the cluster. multicast data.

在一种可能的实现方式中，第二指示信息可以包括第一信息。该第一信息可以用于指示第一数据和第二数据是否可以合并接收。In a possible implementation manner, the second indication information may include the first information. The first information may be used to indicate whether the first data and the second data can be received in combination.

基于该方案，可以通过第一信息指示重传数据和组播数据是否可以合并接收，簇内的终端设备则可以根据该第一信息确定是否合并接收重传数据和组播数据。Based on this solution, whether the retransmission data and the multicast data can be received in combination can be indicated by the first information, and the terminal device in the cluster can determine whether to combine the reception of the retransmission data and the multicast data according to the first information.

在一种可能的实现方式中，第二指示信息可以包括第二信息。该第二信息可以用于指示第三通信装置接收第二数据。In a possible implementation manner, the second indication information may include second information. The second information may be used to instruct the third communication apparatus to receive the second data.

基于该方案，可以通过第二指示信息中的第二信息指示第三通信装置接收组播数据的重传数据。Based on this solution, the third communication apparatus may be instructed to receive the retransmission data of the multicast data through the second information in the second indication information.

第四方面，本申请实施例还提供一种通信方法。该方法可以由本申请实施例提供的第二通信装置执行，也可以由具备第二通信装置功能的芯片来执行。其中，第二通信装置可以是终端设备，或者可以是类似于终端设备的功能的设备。该方法中，第二通信装置可以接收网络设备发送的第一数据。第二通信装置还可以向第三通信装置发送第二数据。该第二数据可以是第一数据的重传数据。其中，第二通信装置是簇头节点，第三通信装置是第二通信装置的簇成员节点。In a fourth aspect, an embodiment of the present application further provides a communication method. The method may be executed by the second communication device provided in the embodiment of the present application, or may be executed by a chip having the function of the second communication device. Wherein, the second communication apparatus may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the second communication apparatus may receive the first data sent by the network device. The second communication device may also send second data to the third communication device. The second data may be retransmission data of the first data. The second communication device is a cluster head node, and the third communication device is a cluster member node of the second communication device.

在一种可能的实现方式中，在第二通信装置向第三通信装置发送第二数据之前，第二通信装置可以发送第二指示信息。该第二指示信息可以包括第二数据所对应的进程号信息，所述第二数据所对应的进程号信息为下行组播进程号信息或者侧链路进程号信息。In a possible implementation manner, before the second communication apparatus sends the second data to the third communication apparatus, the second communication apparatus may send the second indication information. The second indication information may include process number information corresponding to the second data, where the process number information corresponding to the second data is downlink multicast process number information or side link process number information.

在一种可能的实现方式中，该第二指示信息可以包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the second indication information may include a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is for the network device to send the first process number. A process ID used by the data.

在一种可能的实现方式中，该第二指示信息可以包括第二进程号和第三进程号，所述第二进程号用于指示所述第二通信装置发送所述第二数据所使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。In a possible implementation manner, the second indication information may include a second process number and a third process number, and the second process number is used to indicate the second communication device used for sending the second data. A process number, where the third process number indicates a process number used by the network device to send the first data.

在一种可能的实现方式中，该第二指示信息可以包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。In a possible implementation manner, the second indication information may include first information, where the first information is used to indicate whether the first data and the second data can be received in combination.

在一种可能的实现方式中，该第二指示信息可以包括第二信息；所述第二信息用于指示所述第三通信装置接收所述第二数据。In a possible implementation manner, the second indication information may include second information; the second information is used to instruct the third communication apparatus to receive the second data.

在一种可能的实现方式中，在所述第二通信装置向所述第三通信装置发送第二数据之前，所述第二通信装置可以接收所述第三通信装置发送的第六指示信息；所述第六指示信息用于指示所述第三通信装置未正确解码所第一数据。In a possible implementation manner, before the second communication apparatus sends the second data to the third communication apparatus, the second communication apparatus may receive the sixth indication information sent by the third communication apparatus; The sixth indication information is used to indicate that the third communication device does not correctly decode the first data.

在一种可能的实现方式中，第二通信装置还可以发送第五指示信息，所述第五指示信息用于指示所述第二通信装置的簇成员节点未正确解码所述网络设备发送的数据。In a possible implementation manner, the second communication apparatus may further send fifth indication information, where the fifth indication information is used to indicate that the cluster member node of the second communication apparatus does not correctly decode the data sent by the network device .

第五方面，本申请实施例还提供一种通信方法。该方法可以由第一通信装置执行，也可以由具备第一通信装置功能的芯片来执行。该第一通信装置可以是终端设备，或者可以是类似于终端设备的功能的设备。该方法中，第一通信装置可以生成第二指示信息。第一通信装置可以发送第二指示信息和第二数据，该第二指示信息指示所述第二数据所对应的进程号。In a fifth aspect, an embodiment of the present application further provides a communication method. The method may be executed by the first communication device, or may be executed by a chip having the function of the first communication device. The first communication apparatus may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the first communication device may generate the second indication information. The first communication apparatus may send second indication information and second data, where the second indication information indicates a process number corresponding to the second data.

在一种可能的实现方式中，第二指示信息可以包括进程号和进程号含义信息。其中，所述进程号含义信息指示所述进程号是所述第一通信装置发送所述第二数据所使用的进程号，还是网络设备发送第一数据所使用的进程号。In a possible implementation manner, the second indication information may include a process number and process number meaning information. The process number meaning information indicates whether the process number is the process number used by the first communication apparatus to send the second data, or the process number used by the network device to send the first data.

在一种可能的实现方式中，该第二指示信息可以包括第一进程号和第二进程号。以下介绍第一进程号和第二进程号的具体实现方式。In a possible implementation manner, the second indication information may include a first process number and a second process number. The specific implementation manners of the first process number and the second process number are described below.

方式一：如果该第二数据为新数据，则所述第一进程号为预设值，所述第二进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Manner 1: If the second data is new data, the first process number is a preset value, and the second process number indicates the process number used by the first communication device to send the second data.

例如，如果第二数据为侧链路的新数据时，第一进程号可以为0000(二进制)，该值为收发双方预设的空值，该值还可以为预设的其他数字，在此不赘述。第二进程号为第二通信装置发送所述第二数据所使用的进程号。For example, if the second data is the new data of the side link, the first process number can be 0000 (binary), which is a null value preset by both the sender and the receiver, and the value can also be other preset numbers, here I won't go into details. The second process number is the process number used by the second communication device to send the second data.

方式二：如果该第二数据为新数据，则所述第一进程号为预设值，所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Mode 2: If the second data is new data, the first process number is a preset value, and the first process number indicates the process number used by the first communication device to send the second data.

例如，如果该第二数据为侧链路的新数据时，第二进程号可以是侧链路进程号，例如SL-HARQ-1等侧链路进程号。For example, if the second data is new data of the side link, the second process number may be the side link process number, such as the side link process number such as SL-HARQ-1.

方式三：如果该第二数据为网络设备发送的第一数据的重传数据，则所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号，所述第二进程号为所述网络设 备发送所述第一数据所使用的进程号。Mode 3: If the second data is retransmission data of the first data sent by the network device, the first process number indicates the process number used by the first communication device to send the second data, and the first process number indicates the process number used by the first communication device to send the second data. The second process number is the process number used by the network device to send the first data.

在一种可能的实现方式中，在第一通信装置生成第二指示信息之前，第一通信装置可以接收网络设备发送的第一数据。其中，第二数据可以是所述第一数据的重传数据。In a possible implementation manner, before the first communication apparatus generates the second indication information, the first communication apparatus may receive the first data sent by the network device. The second data may be retransmission data of the first data.

在一种可能的实现方式中，在第一通信装置接收网络设备发送的第一数据之后，第一通信装置接收第二通信装置发送的第六指示信息。其中，第六指示信息指示所述第二通信装置未正确解码所述第一数据。其中，第一通信装置是簇头节点，第二通信装置是第一通信装置所在簇的成员节点。In a possible implementation manner, after the first communication apparatus receives the first data sent by the network device, the first communication apparatus receives the sixth indication information sent by the second communication apparatus. Wherein, the sixth indication information indicates that the second communication apparatus does not correctly decode the first data. The first communication device is a cluster head node, and the second communication device is a member node of the cluster where the first communication device is located.

在一种可能的实现方式中，第一通信装置还可以接收第二通信装置发送的第一指示信息。该第一指示信息用于调度所述第一通信装置发送所述第二数据。其中，该第一指示信息可以包括所述第二数据所对应的进程号。这里的第二通信装置是簇头节点，第一通信装置是所述第二通信装置所在簇的成员节点。In a possible implementation manner, the first communication apparatus may also receive the first indication information sent by the second communication apparatus. The first indication information is used to schedule the first communication apparatus to send the second data. Wherein, the first indication information may include a process number corresponding to the second data. The second communication device here is a cluster head node, and the first communication device is a member node of the cluster where the second communication device is located.

在一种可能的实现方式中，第一通信装置在接收第二通信装置发送的第一指示信息之前，所述第一通信装置还可以向所述第二通信装置发送第三指示信息。其中，所述第三指示信息指示所述第一通信装置正确解码网络设备发送的第一数据，所述第二数据是所述第一数据的重传数据。其中，第二通信装置是簇头节点，第一通信装置是所述第二通信装置所在簇的成员节点。In a possible implementation manner, before the first communication apparatus receives the first indication information sent by the second communication apparatus, the first communication apparatus may further send third indication information to the second communication apparatus. The third indication information indicates that the first communication apparatus correctly decodes the first data sent by the network device, and the second data is retransmission data of the first data. The second communication device is a cluster head node, and the first communication device is a member node of the cluster where the second communication device is located.

第六方面，还提供一种通信方法。该方法可以由第一通信装置执行，也可以由具备第一通信装置功能的芯片来执行。该第一通信装置可以是终端设备，或者可以是类似于终端设备的功能的设备。该方法中，第一通信装置发送第二数据。In a sixth aspect, a communication method is also provided. The method may be executed by the first communication device, or may be executed by a chip having the function of the first communication device. The first communication apparatus may be a terminal device, or may be a device with functions similar to the terminal device. In this method, the first communication device transmits the second data.

在一种可能的实现方式中，所述第一通信装置还可以发送第二指示信息。其中，该第二指示信息可以包括进程号和进程号含义信息。其中，所述进程号含义信息指示所述进程号是所述第一通信装置发送所述第二数据所使用的进程号，还是网络设备发送第一数据所使用的进程号。In a possible implementation manner, the first communication apparatus may also send second indication information. Wherein, the second indication information may include a process number and process number meaning information. The process number meaning information indicates whether the process number is the process number used by the first communication apparatus to send the second data, or the process number used by the network device to send the first data.

在一种可能的实现方式中，所述第一通信装置还可以发送第二指示信息。该第二指示信息可以包括第一进程号和第二进程号。以下介绍第一进程号和第二进程号的具体实现方式。In a possible implementation manner, the first communication apparatus may also send second indication information. The second indication information may include a first process number and a second process number. The specific implementation manners of the first process number and the second process number are described below.

方式一：如果该第二数据为新数据，则所述第一进程号为预设值，所述第二进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Manner 1: If the second data is new data, the first process number is a preset value, and the second process number indicates the process number used by the first communication device to send the second data.

方式二：如果该第二数据为新数据，则所述第一进程号为预设值，所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Mode 2: If the second data is new data, the first process number is a preset value, and the first process number indicates the process number used by the first communication device to send the second data.

方式三：如果该第二数据为网络设备发送的第一数据的重传数据，则所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号，所述第二进程号为所述网络设备发送所述第一数据所使用的进程号。Mode 3: If the second data is retransmission data of the first data sent by the network device, the first process number indicates the process number used by the first communication device to send the second data, and the first process number indicates the process number used by the first communication device to send the second data. The second process number is the process number used by the network device to send the first data.

在一种可能的实现方式中，在所述第一通信装置发送第二数据之前，第一通信装置还可以接收网络设备发送的第一数据，所述第二数据是所述第一数据的重传数据。In a possible implementation manner, before the first communication apparatus sends second data, the first communication apparatus may further receive first data sent by a network device, where the second data is a repetition of the first data transmit data.

在一种可能的实现方式中，第一通信装置还可以接收第二通信装置发送的第六指示信息。所述第六指示信息用于指示所述第二通信装置未正确解码网络设备发送的第一数据。其中，第一通信装置为簇头节点，第二通信装置为所述第一通信装置所在簇的成员节点。In a possible implementation manner, the first communication apparatus may also receive sixth indication information sent by the second communication apparatus. The sixth indication information is used to indicate that the second communication apparatus does not correctly decode the first data sent by the network device. The first communication device is a cluster head node, and the second communication device is a member node of the cluster where the first communication device is located.

在一种可能的实现方式中，第一通信装置还可以向第二通信装置发送第三指示信息。所述第三指示信息用于指示所述第一通信装置正确解码所述第一数据。其中，所述第二数 据是所述第一数据的重传数据，所述第二通信装置是簇头节点，所述第一通信装置是所述第二通信装置所在簇的成员节点。In a possible implementation manner, the first communication apparatus may also send third indication information to the second communication apparatus. The third indication information is used to instruct the first communication device to correctly decode the first data. The second data is retransmission data of the first data, the second communication device is a cluster head node, and the first communication device is a member node of the cluster where the second communication device is located.

在一种可能的实现方式中，在所述第一通信装置发送第二数据之前，还可以接收所述第二通信装置发送的第一指示信息。所述第一指示信息用于调度所述第一通信装置发送所述第二数据。其中，该第一指示信息包括所述第二数据所对应的进程号。这里的第二通信装置是簇头节点，所述第一通信装置是所述第二通信装置所在簇的成员节点。In a possible implementation manner, before the first communication apparatus sends the second data, the first indication information sent by the second communication apparatus may also be received. The first indication information is used to schedule the first communication apparatus to send the second data. Wherein, the first indication information includes a process number corresponding to the second data. The second communication device here is a cluster head node, and the first communication device is a member node of the cluster where the second communication device is located.

第七方面，还提供一种通信方法。该方法可以由本申请实施例提供的第二通信装置执行，也可以由具备第二通信装置功能的芯片来执行。其中，第二通信装置可以是终端设备，或者还可以是类似于终端设备的功能的设备。该方法中，第二通信装置可以接收第二数据。In a seventh aspect, a communication method is also provided. The method may be executed by the second communication device provided in the embodiment of the present application, or may be executed by a chip having the function of the second communication device. Wherein, the second communication apparatus may be a terminal device, or may also be a device with functions similar to the terminal device. In this method, the second communication device may receive the second data.

在一种可能的实现方式中，第二通信装置可以接收第一通信装置发送的第二指示信息。其中，该第二指示信息可以包括进程号和进程号含义信息。其中，所述进程号含义信息指示所述进程号是所述第一通信装置发送所述第二数据所使用的进程号，还是网络设备发送第一数据所使用的进程号。In a possible implementation manner, the second communication apparatus may receive the second indication information sent by the first communication apparatus. Wherein, the second indication information may include a process number and process number meaning information. The process number meaning information indicates whether the process number is the process number used by the first communication apparatus to send the second data, or the process number used by the network device to send the first data.

在一种可能的实现方式中，所述第二通信装置还可以接收第一通信装置发送的第二指示信息。该第二指示信息可以包括第一进程号和第二进程号。以下介绍第一进程号和第二进程号的具体实现方式。In a possible implementation manner, the second communication apparatus may also receive second indication information sent by the first communication apparatus. The second indication information may include a first process number and a second process number. The specific implementation manners of the first process number and the second process number are described below.

方式一：如果该第二数据为新数据，则所述第一进程号为预设值，所述第二进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Manner 1: If the second data is new data, the first process number is a preset value, and the second process number indicates the process number used by the first communication device to send the second data.

方式二：如果该第二数据为新数据，则所述第一进程号为预设值，所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号。Mode 2: If the second data is new data, the first process number is a preset value, and the first process number indicates the process number used by the first communication device to send the second data.

方式三：如果该第二数据为网络设备发送的第一数据的重传数据，则所述第一进程号指示所述第一通信装置发送所述第二数据所使用的进程号，所述第二进程号为所述网络设备发送所述第一数据所使用的进程号。Mode 3: If the second data is retransmission data of the first data sent by the network device, the first process number indicates the process number used by the first communication device to send the second data, and the first process number indicates the process number used by the first communication device to send the second data. The second process number is the process number used by the network device to send the first data.

在一种可能的实现方式中，在所述第二通信装置接收第二数据之前，还可以接收网络设备发送的第一数据，所述第二数据是所述第一数据的重传数据。In a possible implementation manner, before the second communication apparatus receives the second data, it may further receive the first data sent by the network device, where the second data is retransmission data of the first data.

在一种可能的实现方式中，所述第二通信装置还可以向第一通信装置发送第六指示信息。所述第六指示信息用于指示所述第二通信装置未正确解码所述第一数据。其中，所述第二数据是所述第一数据的重传数据，所述第一通信装置是簇头节点，所述第二通信装置是所述第一通信装置所在簇的成员节点。In a possible implementation manner, the second communication apparatus may also send sixth indication information to the first communication apparatus. The sixth indication information is used to indicate that the second communication device does not correctly decode the first data. The second data is retransmission data of the first data, the first communication device is a cluster head node, and the second communication device is a member node of the cluster where the first communication device is located.

在这一种可能的实现方式中，所述第二通信装置在接收第二数据之前，还可以接收第一通信装置发送的第二指示信息。所述第二指示信息可以包括发送所述第二数据的通信装置的标识。In this possible implementation manner, before receiving the second data, the second communication apparatus may further receive the second indication information sent by the first communication apparatus. The second indication information may include an identification of a communication apparatus that sends the second data.

第八方面，提供了通信装置，通信装置可以包括用于执行第一方面或第一方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第二方面或第二方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第三方面或第三方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第四方面或第四方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第五方面或第五方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第六方面或第六方面任一种可能实现方式中的各个模块/单元，或者还可以包括用于执行第七方面或第七方面任一种可能实现方式 中的各个模块/单元。In an eighth aspect, a communication apparatus is provided, and the communication apparatus may include various modules/units for executing the first aspect or any possible implementation manner of the first aspect, or may further include a communication device for executing the second aspect or the second aspect Each module/unit in any possible implementation manner, or may further include each module/unit for implementing the third aspect or any possible implementation manner of the third aspect, or may also include performing the fourth aspect or each module/unit in any possible implementation manner of the fourth aspect, or may also include various modules/units for executing the fifth aspect or any possible implementation manner of the fifth aspect, or may also include Perform the sixth aspect or each module/unit in any possible implementation manner of the sixth aspect, or may further include various modules/units for performing the seventh aspect or any possible implementation manner of the seventh aspect.

第九方面，提供了一种通信装置，通信装置包括处理器和存储器。存储器用于存储计算机执行指令，控制器运行时，处理器执行存储器中的计算机执行指令以利用控制器中的硬件资源执行第一方面或第一方面任一种可能实现方式中方法的操作步骤，或者执行第二方面或第二方面任一种可能实现方式中方法的操作步骤，或者执行第三方面或第三方面任一种可能实现方式中方法的操作步骤，或者执行第四方面或第四方面任一种可能实现方式中方法的操作步骤，或者执行第五方面或第五方面任一种可能实现方式中方法的操作步骤，或者执行第六方面或第六方面任一种可能实现方式中方法的操作步骤，或者执行第七方面或第七方面任一种可能实现方式中方法的操作步骤。In a ninth aspect, a communication apparatus is provided, the communication apparatus includes a processor and a memory. The memory is used to store computer-executed instructions, and when the controller is running, the processor executes the computer-executed instructions in the memory to utilize hardware resources in the controller to perform the operation steps of the method in the first aspect or any possible implementation manner of the first aspect, Either perform the operation steps of the method in the second aspect or any possible implementation manner of the second aspect, or perform the operation steps of the method in the third aspect or any possible implementation manner of the third aspect, or perform the fourth aspect or the fourth aspect. Operation steps of the method in any possible implementation manner of the aspect, or performing the operation steps of the method in the fifth aspect or any possible implementation manner of the fifth aspect, or performing the sixth aspect or any possible implementation manner of the sixth aspect. The operation steps of the method, or the operation steps of the method in the seventh aspect or any possible implementation manner of the seventh aspect are performed.

第十方面，本申请提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面的方法。In a tenth aspect, the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, which, when executed on a computer, cause the computer to execute the methods of the above aspects.

第十一方面，本申请提供了一种存储指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面的方法。In an eleventh aspect, the present application provides a computer program product storing instructions that, when executed on a computer, cause the computer to perform the methods of the above aspects.

附图说明Description of drawings

图1为本申请实施例提供的一种通信系统之一；FIG. 1 is one of a kind of communication systems provided by an embodiment of the present application;

图2为本申请实施例提供的一种通信系统之一；FIG. 2 is one of a kind of communication systems provided by an embodiment of the present application;

图3为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 3 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图4为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 4 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图5为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 5 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图6为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 6 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图7为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 7 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图8为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 8 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图9为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 9 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图10为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 10 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图11为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 11 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图12为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 12 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图13为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 13 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图14为本申请实施例提供的一种通信方法的示例性流程图之一；FIG. 14 is one of the exemplary flowcharts of a communication method provided by an embodiment of the present application;

图15为本申请实施例提供的一种通信装置的结构示意图之一；FIG. 15 is one of schematic structural diagrams of a communication device provided by an embodiment of the present application;

图16为本申请实施例提供的一种通信装置的结构示意图之一；FIG. 16 is one of schematic structural diagrams of a communication device provided by an embodiment of the present application;

图17为本申请实施例提供的一种通信装置的结构示意图之一。FIG. 17 is one of the schematic structural diagrams of a communication apparatus provided by an embodiment of the present application.

具体实施方式detailed description

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。Hereinafter, some terms in the embodiments of the present application will be explained, so as to facilitate the understanding of those skilled in the art.

1)重传数据，指对设备发送的数据进行重新传输时的数据。重传数据可以与第一次传输时的数据完全相同，或者可以是第一次传输时的数据的不同冗余版本。1) Retransmission data refers to the data when the data sent by the device is retransmitted. The retransmitted data can be exactly the same as the data in the first transmission, or it can be a different redundant version of the data in the first transmission.

2)、簇，多个具有关联关系的终端设备组成的一个集合。例如，簇内终端间的关联关系可以是，配置的控制信息检索资源相同、配置的无线网络临时标识(radio network  temporary indicator，RNTI)相同、地理位置相近、所属业主相同、业务类型相同等。2) A cluster, a set composed of multiple terminal devices with associated relationships. For example, the association relationship between the terminals in the cluster may be that the configured control information retrieval resources are the same, the configured radio network temporary indicator (RNTI) is the same, the geographical location is similar, the owner is the same, and the service type is the same.

3)、簇头节点，簇中具有最关键地位的终端设备，其功能包括但不限于可转发基站发送给簇成员的数据、协助簇成员向基站发送数据、调度簇成员终端的数据收发、给簇成员终端配置数据传输资源等。3) The cluster head node, the terminal device with the most critical position in the cluster, its functions include but are not limited to forwarding the data sent by the base station to the cluster members, assisting the cluster members to send data to the base station, scheduling the data transmission and reception of the cluster member terminals, and sending the data to the base station. Cluster member terminals configure data transmission resources, etc.

4)、簇成员节点，簇中除了簇头节点之外的其他终端设备。4) Cluster member nodes, other terminal devices in the cluster except the cluster head node.

5)本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两个以上，其它量词与之类似。“和/或”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。此外，对于单数形式“a”，“an”和“the”出现的元素(element)，除非上下文另有明确规定，否则其不意味着“一个或仅一个”，而是意味着“一个或多于一个”。例如，“a device”意味着对一个或多个这样的device。再者，至少一个(at least one of).......”意味着后续关联对象中的一个或任意组合，例如“A，B和C中的至少一个”包括A，B，C，AB，AC，BC，或ABC。5) The terms "system" and "network" in the embodiments of this application may be used interchangeably. "Plurality" means two or more, and other quantifiers are similar. "And/or" describes the association relationship between associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. Furthermore, occurrences of the singular forms "a", "an" and "the" do not mean "one or only one" unless the context clearly dictates otherwise, but rather "one or more" in one". For example, "a device" means to one or more such devices. Furthermore, at least one (at least one of)......." means one or any combination of subsequent associated objects, for example "at least one of A, B and C" includes A, B, C, AB, AC, BC, or ABC.

本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统，未来的第五代(5th Generation，5G)系统，如新一代无线接入技术(new radio access technology，NR)，及未来的通信系统，如6G系统等。The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, and the future fifth generation (5th Generation, 5G) systems, such as new generation radio access technology (NR), and future communication systems, such as 6G systems.

本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。应当理解和明白的是，各个系统可以包括另外的设备、组件、模块等，并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外，还可以使用这些方案的组合。This application will present various aspects, embodiments, or features around a system that may include a plurality of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc., and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.

本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

本申请实施例既可以应用在传统的典型网络中，也可以应用在未来的以UE为中心(UE-centric)的网络中。UE-centric网络引入无小区(Non-cell)的网络架构，即在某个特定的区域内部署大量小站，构成一个超级小区(Hyper cell)，每个小站为Hyper cell的一个传输点(Transmission Point,TP)或传输接收点(Transmission and Reception Point,TRP)，并与一个集中控制器(controller)相连。当UE在Hyper cell内移动时，网络侧设备时时为UE选择新的sub-cluster(子簇)为其服务，从而避免真正的小区切换，实现UE业务的连续性。其中，网络侧设备包括无线网络设备。或者是，在以UE为中心的网络中，多个网络侧设备，如小站，可以有独立的控制器，如分布式控制器，各小站能够独立调度用户，小站之间在长期上存在交互信息，使得在为UE提供协作服务时，也能够有一定的灵活性。The embodiments of the present application can be applied not only to traditional typical networks, but also to future UE-centric (UE-centric) networks. The UE-centric network introduces a non-cell network architecture, that is, deploying a large number of small stations in a specific area to form a hyper cell, and each small station is a transmission point of the Hyper cell ( Transmission Point, TP) or Transmission and Reception Point (TRP), and is connected to a centralized controller (controller). When the UE moves in the Hyper cell, the network side equipment selects a new sub-cluster (sub-cluster) for the UE from time to time to serve it, thereby avoiding real cell handover and realizing the continuity of UE services. Wherein, the network side equipment includes wireless network equipment. Alternatively, in a UE-centric network, multiple network-side devices, such as small stations, may have independent controllers, such as distributed controllers. The existence of interaction information enables certain flexibility in providing cooperative services for UEs.

本申请实施例中不同基站可以为具有不同的标识的基站，也可以为具有相同的标识的被部署在不同地理位置的基站。由于在基站被部署前，基站并不会知道其是否会涉及本申请实施例所应用的场景，因而，基站，或基带芯片，都应在部署前就支持本申请实施例所提供的方法。可以理解的是，前述具有不同标识的基站可以为基站标识，也可以为小区标识或者其他标识。In this embodiment of the present application, different base stations may be base stations with different identities, or may be base stations with the same identity that are deployed in different geographic locations. Before the base station is deployed, the base station does not know whether it will involve the scenarios applied by the embodiments of the present application. Therefore, the base station, or the baseband chip, should support the methods provided by the embodiments of the present application before deployment. It can be understood that, the aforementioned base stations with different identifiers may be base station identifiers, cell identifiers or other identifiers.

本申请实施例中部分场景以无线通信网络中NR网络的场景为例进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其 他无线通信网络中的对应功能的名称进行替代。Some scenarios in the embodiments of the present application are described by taking the scenario of an NR network in a wireless communication network as an example. It should be noted that the solutions in the embodiments of the present application may also be applied to other wireless communication networks, and the corresponding names may also be other The name of the corresponding function in the wireless communication network is substituted.

本申请实施例提供的技术方案可以应用于通信设备间的无线通信。通信设备间的无线通信可以包括：网络设备和终端设备间的无线通信、网络设备和网络设备间的无线通信以及终端设备和终端设备间的无线通信。其中，在本申请实施例中，术语“无线通信”还可以简称为“通信”，术语“通信”还可以描述为“数据传输”、“信息传输”或“传输”。The technical solutions provided in the embodiments of the present application can be applied to wireless communication between communication devices. The wireless communication between communication devices may include: wireless communication between a network device and a terminal device, wireless communication between a network device and a network device, and wireless communication between a terminal device and a terminal device. Wherein, in this embodiment of the present application, the term "wireless communication" may also be referred to as "communication" for short, and the term "communication" may also be described as "data transmission", "information transmission" or "transmission".

为便于理解本申请实施例，首先以图1示出的通信系统为例详细说明适用于本申请实施例的通信系统。图1示出了适用于本申请实施例的通信方法的通信系统的示意图。如图1所示，该通信系统100包括终端设备101和终端设备103。终端设备101和终端设备103可配置有多个天线。可选的，该通信系统还可以包括终端设备105，终端设备105也可以配置有多个天线。To facilitate understanding of the embodiments of the present application, firstly, a communication system applicable to the embodiments of the present application is described in detail by taking the communication system shown in FIG. 1 as an example. FIG. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application. As shown in FIG. 1 , the communication system 100 includes aterminal device 101 and aterminal device 103 . Theterminal device 101 and theterminal device 103 may be configured with multiple antennas. Optionally, the communication system may further include aterminal device 105, and theterminal device 105 may also be configured with multiple antennas.

本申请涉及的终端设备，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。该终端可以包括用户设备(user equipment，UE)、无线终端、移动终端、设备到设备通信(device-to-device，D2D)终端、车到一切(vehicle to everything，V2X)终端、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端、物联网(internet of things，IoT)终端、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。The terminal devices involved in this application include devices that provide users with voice and/or data connectivity, specifically, include devices that provide users with voice, or include devices that provide users with data connectivity, or include devices that provide users with voice and/or data connectivity. device for data connectivity. For example, it may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The terminal can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN. The terminal may include user equipment (UE), wireless terminal, mobile terminal, device-to-device (D2D) terminal, vehicle-to-everything (V2X) terminal, machine-to-machine/ Machine-to-machine/machine-type communications (M2M/MTC) terminal, Internet of things (IoT) terminal, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or User device, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal, a portable, pocket-sized, hand-held, computer-embedded mobile device, and the like. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants), PDA), etc. Also includes constrained devices, such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing power, etc. For example, it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.

作为示例而非限定，在本申请实施例中，该终端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 and not a limitation, in this embodiment of the present application, the terminal may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It 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 device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

而如上介绍的各种终端，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，车载终端例如也称为车载单元(on-board unit，OBU)。The various terminals described above, if located on the vehicle (eg, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminals, and the vehicle-mounted terminal is also called an on-board unit (OBU), for example.

本申请实施例中，用于实现终端的功能的装置可以是终端，也可以是能够支持终端实现该功能的装置，例如芯片系统，该装置可以被安装在终端中。本申请实施例中，芯片系 统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端为例，描述本申请实施例提供的技术方案。In this embodiment of the present application, a device for implementing a function of a terminal may be a terminal, or a device capable of supporting the terminal to implement the function, such as a chip system, and the device may be installed in the terminal. In this embodiment of the present application, the chip system may be composed of chips, and may also include chips and other discrete devices. In the technical solutions provided by the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the functions of the terminal as a terminal as an example.

本申请实施例中，终端设备101和终端设备103以及终端设备105可以组成一个簇，终端设备101可以是簇头节点，终端设备103和终端设备105可以是簇成员节点。在该通信系统100中，终端设备101可以向终端设备103和终端设备105发送数据，或者还可以发送指示信息。终端设备103和终端设备105可以接收终端设备101发送的数据和指示信息。可选的，终端设备103和终端设备105可以根据终端设备101发送的指示信息，执行相应的操作。例如，可以根据终端设备101发送的指示信息执行发送数据等操作。In this embodiment of the present application, theterminal device 101, theterminal device 103 and theterminal device 105 may form a cluster, theterminal device 101 may be a cluster head node, and theterminal device 103 and theterminal device 105 may be cluster member nodes. In the communication system 100, theterminal device 101 can send data to theterminal device 103 and theterminal device 105, or can also send instruction information. Theterminal device 103 and theterminal device 105 can receive the data and indication information sent by theterminal device 101 . Optionally, theterminal device 103 and theterminal device 105 may perform corresponding operations according to the indication information sent by theterminal device 101 . For example, operations such as sending data may be performed according to the indication information sent by theterminal device 101 .

如图2所示，该通信系统中还可以包括网络设备102。本申请所涉及的网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端通信的设备，或者例如，一种车到一切(vehicle-to-everything，V2X)技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与IP分组进行相互转换，作为终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括长期演进(long term evolution，LTE)系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括演进的分组核心网络(evolved packet core，EPC)、第五代移动通信技术(the 5th generation，5G)、新空口(new radio，NR)系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。As shown in FIG. 2 , the communication system may further include anetwork device 102 . The network equipment involved in this application, for example, includes access network (AN) equipment, such as a base station (for example, an access point), which may refer to an access network communicating with a wireless terminal through one or more cells over an air interface or, for example, a network device in a vehicle-to-everything (V2X) technology is a roadside unit (RSU). The base station may be used to convert received air frames to and from IP packets, acting as a router between the terminal and the rest of the access network, which may include the IP network. The RSU can be a fixed infrastructure entity supporting V2X applications and can exchange messages with other entities supporting V2X applications. The network device can also coordinate the attribute management of the air interface. For example, the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (long term evolution, LTE) system or long term evolution-advanced (LTE-A), Or it can also include the evolution of the packet core network (evolved packet core, EPC), the fifth generation mobile communication technology (the 5th generation, 5G), the new radio (new radio, NR) system (also referred to as NR system) under the A generation node B (next generation node B, gNB) may also include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) in a cloud radio access network (Cloud RAN) system , the embodiments of the present application are not limited.

网络设备还可以包括核心网设备，核心网设备例如包括访问和移动管理功能(access and mobility management function，AMF)等。The network equipment may also include core network equipment, and the core network equipment includes, for example, an access and mobility management function (AMF) and the like.

本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。In this embodiment of the present application, the apparatus for implementing the function of the network device may be the network device, or may be an apparatus capable of supporting the network device to implement the function, such as a chip system, and the apparatus may be installed in the network device. In the technical solutions provided by the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the function of the network device being a network device as an example.

其中，网络设备102可以向簇内的终端设备101、终端设备103或者终端设备105发送数据。网络设备102在发送数据时，可以向簇头节点终端设备101发送数据，并由簇头节点终端设备101向簇成员节点终端设备103和终端设备105转发网络设备发送的该数据。或者，网络设备102在发送数据时，可以分别向终端设备101、终端设备103和终端设备105发送数据。Thenetwork device 102 may send data to theterminal device 101, theterminal device 103 or theterminal device 105 in the cluster. When sending data, thenetwork device 102 can send the data to the cluster headnode terminal device 101, and the cluster headnode terminal device 101 forwards the data sent by the network device to the cluster membernode terminal device 103 and theterminal device 105. Alternatively, when sending data, thenetwork device 102 may send data to theterminal device 101 , theterminal device 103 and theterminal device 105 respectively.

其中，如果终端设备101、终端设备103和终端设备105中存在一个终端设备未正确解码网络设备发送的数据，那么在现有技术中，可以由网络设备进行数据重传，即网络设备可以向终端设备101、终端设备103和终端设备105发送重传数据。然而，这种数据重传的方式，会大量占用网络设备的传输资源，使得网络设备的传输资源开销较大。而且增加了已正确接收的簇内终端的资源开销。Wherein, if one of theterminal equipment 101, theterminal equipment 103, and theterminal equipment 105 does not correctly decode the data sent by the network equipment, then in the prior art, the network equipment can retransmit the data, that is, the network equipment can retransmit the data to the terminal equipment.Device 101,terminal device 103, andterminal device 105 send retransmission data. However, this method of data retransmission will occupy a large amount of transmission resources of the network device, so that the transmission resource overhead of the network device is relatively large. Furthermore, the resource overhead of the correctly received intra-cluster terminals is increased.

基于上述问题，本申请实施例提供了一种通信方法。本申请的通信方法可以应用于无线通信系统中，例如，图1或图2所示出的通信系统。该通信系统可以包括至少两个终端 设备，或者还可以包括至少一个网络设备，终端设备和终端设备可以通过无线空口通信，网络设备和通信设备也可以通过无线空口通信。例如，终端设备可以对应于图1或图2所示的终端设备101、终端设备103，网络设备可以对应于图2所示的网络设备102。Based on the above problem, an embodiment of the present application provides a communication method. The communication method of the present application can be applied to a wireless communication system, for example, the communication system shown in FIG. 1 or FIG. 2 . The communication system may include at least two terminal devices, or may further include at least one network device, the terminal device and the terminal device may communicate through a wireless air interface, and the network device and the communication device may also communicate through a wireless air interface. For example, the terminal device may correspond to theterminal device 101 and theterminal device 103 shown in FIG. 1 or FIG. 2 , and the network device may correspond to thenetwork device 102 shown in FIG. 2 .

如图3所示，是以设备交互角度示出的本申请实施例提供的通信方法的示例性流程图。其中，图3示出的多个通信装置中，第二通信装置为簇头节点，第一通信装置和第三通信装置为簇成员节点。其中，簇头节点(第二通信装置)未成功解码网络设备发送的第一数据。该方法可以包括以下步骤：As shown in FIG. 3 , it is an exemplary flowchart of the communication method provided by the embodiment of the present application, shown from the perspective of device interaction. Among the plurality of communication devices shown in FIG. 3 , the second communication device is a cluster head node, and the first communication device and the third communication device are cluster member nodes. Wherein, the cluster head node (the second communication device) fails to decode the first data sent by the network device. The method may include the following steps:

步骤301：网络设备发送第一数据。Step 301: The network device sends first data.

其中，网络设备在发送第一数据时，可以发送下行控制信息(downlink control information，DCI)，调度物理下行共享信道(physical downlink shared channel，PDSCH)。在该DCI中可以指示第一数据在PDSCH上的时域和频域资源。簇内的终端设备，例如簇头节点、簇成员节点，可以使用相同的无线网络临时标识(radio network temporary indicator，RNTI)在相同的搜索空间内搜索网络设备发送的该DCI，并从中解调出第一数据的指示信息，在PDSCH上接收第一数据。Wherein, when sending the first data, the network device may send downlink control information (downlink control information, DCI), and schedule a physical downlink shared channel (physical downlink shared channel, PDSCH). The time domain and frequency domain resources of the first data on the PDSCH may be indicated in the DCI. Terminal devices in the cluster, such as cluster head nodes and cluster member nodes, can use the same radio network temporary indicator (RNTI) to search for the DCI sent by the network device in the same search space, and demodulate the DCI from it. Indication information of the first data, the first data is received on the PDSCH.

簇成员节点(如第一通信装置和第三通信装置)可以向簇头节点(如第二通信装置)发送第三指示信息或第六指示信息。其中，如果簇成员节点正确解码第一数据，那么簇成员节点可以向簇头节点发送第三指示信息，用于指示簇成员节点正确解码第一数据。例如，第一通信装置正确解码第一数据，则第一通信装置可以向第二通信装置发送确认字符(acknowledge character，ACK)。如果簇成员节点未正确解码第一数据，那么簇成员节点可以向簇头节点发送第六指示信息，用于指示簇成员节点未正确解码第一数据。例如，第三通信装置未正确解码第六指示信息，则第三通信装置可以向第二通信装置发送否认响应(non-acknowledge character，NACK)。The cluster member nodes (such as the first communication device and the third communication device) may send the third indication information or the sixth indication information to the cluster head node (such as the second communication device). Wherein, if the cluster member node correctly decodes the first data, the cluster member node may send third indication information to the cluster head node, which is used to instruct the cluster member node to correctly decode the first data. For example, if the first communication device decodes the first data correctly, the first communication device may send an acknowledgement character (ACK) to the second communication device. If the cluster member node does not correctly decode the first data, the cluster member node may send sixth indication information to the cluster head node, which is used to indicate that the cluster member node does not correctly decode the first data. For example, if the third communication apparatus does not correctly decode the sixth indication information, the third communication apparatus may send a non-acknowledge character (NACK) to the second communication apparatus.

如果簇头节点没有正确解码该第一数据，和/或如果簇头节点(如第二通信装置)接收到簇成员节点发送的第六指示信息，则簇头节点可以向网络设备发送第五指示信息，用于指示簇头节点和/或簇成员节点未正确解码该网络设备发送的第一数据。该第五指示信息可以通过上行控制信息(uplink control information，UCI)指示。应理解，由于簇头节点和/或簇成员节点未正确解码第一数据，因此需要由正确解码该第一数据的簇成员节点进行数据重传。If the cluster head node does not decode the first data correctly, and/or if the cluster head node (eg, the second communication device) receives the sixth indication information sent by the cluster member node, the cluster head node may send a fifth indication to the network device The information is used to indicate that the cluster head node and/or the cluster member nodes do not correctly decode the first data sent by the network device. The fifth indication information may be indicated by uplink control information (uplink control information, UCI). It should be understood that since the cluster head node and/or the cluster member nodes do not correctly decode the first data, it is necessary to perform data retransmission by the cluster member nodes that correctly decode the first data.

步骤302：第二通信装置发送第一指示信息，以及第一通信装置接收第二通信装置发送的第一指示信息。Step 302: The second communication device sends the first indication information, and the first communication device receives the first indication information sent by the second communication device.

这里的第二通信装置为簇头节点，由于簇头节点未正确解码第一数据，所以簇头节点可以向正确解码第一数据的簇成员节点(如第一通信装置)发送第一指示信息，用于调度簇成员节点发送第二数据。该第二数据是网络设备发送的第一数据的重传数据。其中，该第一指示信息可以包括第二数据的调度信息，该第二指示信息可以是侧链路控制信息(sidelink control information，SCI)。以下介绍第一指示信息中包含的信息，可以包括以下四种：The second communication device here is the cluster head node. Since the cluster head node does not correctly decode the first data, the cluster head node can send the first indication information to the cluster member node (such as the first communication device) that correctly decodes the first data, It is used for scheduling cluster member nodes to send the second data. The second data is retransmission data of the first data sent by the network device. Wherein, the first indication information may include scheduling information of the second data, and the second indication information may be sidelink control information (sidelink control information, SCI). The following describes the information contained in the first indication information, which can include the following four types:

一、第二数据的进程号信息。1. Process ID information of the second data.

其中，第二数据的进程号信息可以是下行组播进程号信息或者是侧链路进程号信息，可以由以下两种方式表示：Wherein, the process ID information of the second data may be downlink multicast process ID information or side link process ID information, and may be represented by the following two ways:

1、第一进程号和进程号含义指示信息。1. The first process number and the meaning indication information of the process number.

这里的进程号含义指示信息可以是第一进程号为网络设备发送的第一数据所使用的进程号。例如，第一指示信息中包含进程号HARQ-1，进程号含义指示信息指示HARQ-1是下行组播进程号。因此，第一通信装置可以根据该第一指示信息，发送第二数据，该第二数据是HARQ-1进程的第一数据的重传数据。The process number meaning indication information here may be that the first process number is a process number used by the first data sent by the network device. For example, the first indication information includes a process number HARQ-1, and the process number meaning indication information indicates that HARQ-1 is a downlink multicast process number. Therefore, the first communication apparatus may send the second data according to the first indication information, where the second data is retransmission data of the first data of the HARQ-1 process.

2、第二进程号和第三进程号。2. The second process number and the third process number.

其中，第二进程号可以是第一通信装置发送第二数据所使用的进程号，第三进程号可以是网络设备发送第一数据所使用的进程号。例如，第一指示信息中包含SL-HARQ-1和DL-HARQ-15。因此，第一通信装置可以使用SL-HARQ-1进程发送第二数据。该第二数据可以是DL-HARQ-15进程的第一数据的重传数据。The second process number may be the process number used by the first communication apparatus to send the second data, and the third process number may be the process number used by the network device to send the first data. For example, the first indication information includes SL-HARQ-1 and DL-HARQ-15. Therefore, the first communication device can transmit the second data using the SL-HARQ-1 process. The second data may be retransmission data of the first data of the DL-HARQ-15 process.

另外需要说明的是，“SL-HARQ-”可以表示侧链路进程的进程号，“DL-HARQ-”可以表示下行组播进程的进程号。比如，SL-HARQ-3与DL-HARQ-3中，SL-HARQ-3为侧链路进程的进程号，而DL-HARQ-3为下行组播进程的进程号。It should also be noted that "SL-HARQ-" may represent the process ID of the side link process, and "DL-HARQ-" may represent the process ID of the downlink multicast process. For example, in SL-HARQ-3 and DL-HARQ-3, SL-HARQ-3 is the process ID of the side link process, and DL-HARQ-3 is the process ID of the downlink multicast process.

应理解，本申请实施例提供的进程号，如HARQ-1、SL-HARQ-1以及DL-HARQ-15等是示例性的，并非限定进程号即为HARQ-1或者SL-HARQ-1。It should be understood that the process numbers provided in the embodiments of the present application, such as HARQ-1, SL-HARQ-1, and DL-HARQ-15, are exemplary, and the process numbers are not limited to be HARQ-1 or SL-HARQ-1.

二、第一信息2. First information

这里的第一信息用于指示第一数据和第二数据是否可以合并接收。比如，用“0”指示可以合并接收，用“1”指示不可以合并接收；或者，用“1”指示可以合并接收，用“0”指示不可以合并接收。The first information here is used to indicate whether the first data and the second data can be received in combination. For example, use "0" to indicate that combined reception is possible, and "1" to indicate that combined reception is not possible; or, use "1" to indicate that combined reception is possible, and "0" to indicate that combined reception is not possible.

举例来说，第一指示信息包含进程号HARQ-1，进程号指示信息指示HARQ-1为下行组播进程号，以及第一信息指示第一数据和第二数据可以合并接收。也就是说，第一指示信息指示HARQ-1进程的第一数据的重传数据可以与HARQ-1进程的第一数据可以合并接收。For example, the first indication information includes a process number HARQ-1, the process number indication information indicates that HARQ-1 is a downlink multicast process number, and the first information indicates that the first data and the second data can be received in combination. That is, the first indication information indicates that the retransmission data of the first data of the HARQ-1 process can be received in combination with the first data of the HARQ-1 process.

又例如，第一指示信息包含SL-HARQ-1和DL-HARQ-15，以及第一指示信息指示第一数据和第二数据可以合并接收。也就是说，第一指示信息指示SL-HARQ-1进程的数据和DL-HARQ-15的数据可以合并接收。其中，SL-HARQ-1进程的数据为第二数据，该第二数据可以是DL-HARQ-15的数据的重传数据。For another example, the first indication information includes SL-HARQ-1 and DL-HARQ-15, and the first indication information indicates that the first data and the second data can be received in combination. That is, the first indication information indicates that the data of the SL-HARQ-1 process and the data of the DL-HARQ-15 process can be received in combination. Wherein, the data of the SL-HARQ-1 process is the second data, and the second data may be retransmission data of the data of the DL-HARQ-15.

三、第二信息3. Second information

该第二信息可以用于指示第一通信装置发送第二数据。或者，该第二信息还可以用于指示接收第二数据。例如，可以用标识指示第一通信装置发送或者接收第二数据。例如，当第二信息为“receive”时，第一通信装置可以根据该第一指示信息接收第二数据；当第二信息为“send”时，第一通信装置可以根据该第一指示信息发送第二数据。The second information may be used to instruct the first communication apparatus to send second data. Alternatively, the second information may also be used to indicate the reception of second data. For example, the identification may be used to instruct the first communication device to send or receive the second data. For example, when the second information is "receive", the first communication apparatus may receive the second data according to the first indication information; when the second information is "send", the first communication apparatus may send according to the first indication information Second data.

举例来说，第一指示信息中包含进程号HARQ-1，进程号含义指示信息指示该HARQ-1为下行组播进程号，第二信息指示第一通信装置发送第二数据。因此，第一通信装置可以发送HARQ-1进程的第一数据的重传数据。For example, the first indication information includes a process number HARQ-1, the process number meaning indication information indicates that the HARQ-1 is a downlink multicast process number, and the second information instructs the first communication device to send the second data. Therefore, the first communication apparatus may transmit retransmission data of the first data of the HARQ-1 process.

又或者，第一指示信息中包含SL-HARQ-1和DL-HARQ-15，第二信息指示第一通信装置发送第二数据。因此，第一通信装置可以使用SL-HARQ-1进程发送DL-HARQ-15进程的第一数据的重传数据。Alternatively, the first indication information includes SL-HARQ-1 and DL-HARQ-15, and the second information instructs the first communication apparatus to send the second data. Therefore, the first communication apparatus may transmit the retransmission data of the first data of the DL-HARQ-15 process using the SL-HARQ-1 process.

四、第三信息Fourth, the third information

该第三信息可以用于指示第二数据是新数据或者是重传数据。这里的第三信息可以是新数据指示(new data indicator，NDI)。例如，NDI翻转时表示第二数据为新数据，NDI 未翻转时第二数据是重传数据。The third information may be used to indicate that the second data is new data or retransmission data. The third information here may be a new data indicator (NDI). For example, when the NDI is inverted, it indicates that the second data is new data, and when the NDI is not inverted, the second data is retransmission data.

举例来说，如果网络设备在发送数据1时使用进程HARQ-1，且NDI＝0，在重传数据1时，第一指示信息中的NDI＝0。如果网络设备在随后的一个时隙，采用HARQ-1进程发送数据2，且NDI＝1，也即NDI从0翻转为1，则表示数据2是与数据1不同的新数据。那么，在用HARQ-1进程重传数据2时，第一指示信息中的NDI＝1。For example, if the network device uses the process HARQ-1 when sendingdata 1, and NDI=0, when retransmittingdata 1, NDI=0 in the first indication information. If the network device uses the HARQ-1 process to send data 2 in the next time slot, and NDI=1, that is, the NDI is flipped from 0 to 1, it means that data 2 is new data different fromdata 1. Then, when data 2 is retransmitted by the HARQ-1 process, NDI=1 in the first indication information.

步骤303：第一通信装置根据第一指示信息发送第二数据，以及第二通信装置和第三通信装置接收第一通信装置发送的第二数据。Step 303: The first communication device sends the second data according to the first indication information, and the second communication device and the third communication device receive the second data sent by the first communication device.

由于第二通信装置可以广播第一指示信息，因此簇成员节点可以接收到该第一指示信息。换句话说，除第一通信装置以外的其他簇成员节点(如第三通信装置)也可以接收到第一指示信息。该第一指示信息中还可以包括接收该第一指示信息的标识(如第一通信装置的标识)。因此，第三通信装置可以根据第一通信装置的标识，确定从哪个通信装置处接收第二数据。Since the second communication apparatus can broadcast the first indication information, the cluster member node can receive the first indication information. In other words, other cluster member nodes (eg, the third communication device) other than the first communication device can also receive the first indication information. The first indication information may further include an identifier for receiving the first indication information (eg, an identifier of the first communication device). Therefore, the third communication device can determine from which communication device to receive the second data according to the identification of the first communication device.

第一通信装置还可以发送第二指示信息。其中，该第二指示信息中包括第二数据的信息。该第二指示信息可以是SCI，第一通信装置可以通过该SCI指示第二数据的时域和频域资源。其中，第二指示信息中包含的信息可以与上述第一指示信息包含的信息相同，例如第二指示信息也可以包含上述一至四的信息：The first communication apparatus may also send second indication information. Wherein, the second indication information includes information of the second data. The second indication information may be an SCI, and the first communication apparatus may indicate the time domain and frequency domain resources of the second data through the SCI. Wherein, the information contained in the second indication information may be the same as the information contained in the above-mentioned first indication information, for example, the second indication information may also contain the above information from 1 to 4:

一、第二指示信息可以包含第二数据的进程号信息。1. The second indication information may include process number information of the second data.

1、第二指示信息可以包括第一进程号和进程号含义指示信息。该进程号含义指示信息用于指示该第一进程号是网络设备发送第一数据的进程号。1. The second indication information may include the first process number and the process number meaning indication information. The process number meaning indication information is used to indicate that the first process number is the process number for sending the first data by the network device.

例如，第二指示信息中可以包括HARQ-1，以及进程号含义指示信息指示该HARQ-1是下行组播进程号。因此，第二通信装置和第三通信装置可以根据第二指示信息，接收网络设备的发送的HARQ-1进程的数据的重传数据。For example, the second indication information may include HARQ-1, and the process number meaning indication information indicates that the HARQ-1 is a downlink multicast process number. Therefore, the second communication apparatus and the third communication apparatus may receive retransmission data of the data of the HARQ-1 process sent by the network device according to the second indication information.

2、第二指示信息可以包括第二进程号和第三进程号，第二进程号是第一通信装置发送第二数据使用的进程号，第三进程号是网络设备发送第一数据使用的进程号。2. The second indication information may include a second process number and a third process number. The second process number is the process number used by the first communication device to send the second data, and the third process number is the process used by the network device to send the first data. No.

例如，第二指示信息可以包括SL-HARQ-1和DL-HARQ-15。其中，SL-HARQ-1表示第二通信装置发送第二数据时使用的进程，也即第二通信装置通过进程SL-HARQ-1发送第二数据。该第二数据是DL-HARQ-15进程的数据的重传数据。因此，第二通信装置和第三通信装置可以根据该第二指示信息，接收网络设备发送的DL-HARQ-15进程的数据的重传数据。For example, the second indication information may include SL-HARQ-1 and DL-HARQ-15. Wherein, SL-HARQ-1 represents a process used when the second communication device sends the second data, that is, the second communication device sends the second data through the process SL-HARQ-1. The second data is retransmission data of the data of the DL-HARQ-15 process. Therefore, the second communication apparatus and the third communication apparatus may receive retransmission data of the data of the DL-HARQ-15 process sent by the network device according to the second indication information.

二、第二指示信息可以包含第一信息。2. The second indication information may include the first information.

这里的第一信息用于指示第二数据和第一数据是否可以合并接收。如果第一信息指示第二数据和第一数据可以合并接收，第二通信装置和第三通信装置可以将第二数据与第一数据合并，并解码合并后的数据。如果第一信息指示第二数据和第一数据不可以合并接收，第二通信装置和第三通信装置则不可以将第二数据和第一数据合并，可以接收第二数据并对第二数据进行解码。The first information here is used to indicate whether the second data and the first data can be received in combination. If the first information indicates that the second data and the first data can be received in combination, the second communication device and the third communication device may combine the second data and the first data, and decode the combined data. If the first information indicates that the second data and the first data cannot be received in combination, the second communication device and the third communication device cannot combine the second data and the first data, and can receive the second data and perform the processing on the second data. decoding.

例如，第二指示信息包括HARQ-1，以及进程号含义指示信息指示HARQ-1是下行组播进程号，且第一信息指示第二数据和第一数据可以合并接收。因此，第二通信装置和第三通信装置可以将第二数据与网络设备发送的HARQ-1进程的数据合并接收。For example, the second indication information includes HARQ-1, and the process number meaning indication information indicates that HARQ-1 is a downlink multicast process number, and the first information indicates that the second data and the first data can be received in combination. Therefore, the second communication apparatus and the third communication apparatus may receive the second data in combination with the data of the HARQ-1 process sent by the network device.

又例如，第二指示信息包括SL-HARQ-1和DL-HARQ-15，且第一信息指示第二数据和第一数据可以合并接收。因此，第二通信装置和第三通信装置可以将第一通信装置使用 SL-HARQ-1进程发送的第二数据，与网络设备使用DL-HARQ-15进程发送的第一数据合并接收。For another example, the second indication information includes SL-HARQ-1 and DL-HARQ-15, and the first information indicates that the second data and the first data can be received in combination. Therefore, the second communication apparatus and the third communication apparatus may combine and receive the second data sent by the first communication apparatus using the SL-HARQ-1 process and the first data sent by the network device using the DL-HARQ-15 process.

三、第二指示信息还可以包含第二信息。3. The second indication information may further include second information.

该第二信息可以指示第二通信装置和第三通信装置接收第二数据。因此，接收到包含第二信息的第二指示信息的通信装置可以根据第二指示信息，接收第二数据。The second information may instruct the second communication device and the third communication device to receive the second data. Therefore, the communication apparatus that receives the second indication information including the second information can receive the second data according to the second indication information.

四、第二指示信息还可以包含第三信息。4. The second indication information may further include third information.

该第三信息可以指示第二数据是否为新数据。例如，该第三信息可以是NDI。例如，NDI翻转时表示第二数据为新数据，NDI未翻转时第二数据不是新数据。The third information may indicate whether the second data is new data. For example, the third information may be NDI. For example, when the NDI is flipped, it indicates that the second data is new data, and when the NDI is not flipped, the second data is not new data.

参阅图4，为本申请实施例提供的通信方法的流程示意图。其中，网络设备可以在PDSCH上向簇头节点和簇成员节点发送第一数据。簇成员节点可以在物理侧链路反馈信道(physical sidelink feedback channel，PSFCH)向簇头节点反馈是否正确解码第一数据。如果簇头节点未正确解码第一数据，则簇头节点可以向正确解码第一数据的簇成员节点发送第一指示信息SCI1，调度簇成员节点重传第一数据。簇头节点还可以向网络设备发送UCI1，指示网络设备簇头节点和/或簇成员节点未正确解码第一数据，需要进行数据重传。正确解码第一数据的簇成员节点可以根据该SCI1，发送第二指示信息SCI2，并在物理侧链路共享信道(physical sidelink shared channel，PSSCH)上发送第二数据。簇成员节点和簇头节点可以接收SCI2，并根据该SCI2从PSSCH上接收第二数据。各个簇成员节点可以向簇头节点发送PSFCH2，向簇头节点反馈是否正确解码第二数据。簇头节点可以向网络设备发送UCI2，指示簇头节点和/或簇成员节点是否正确解码第二数据。应理解，如果簇头节点和/或任一簇成员节点未正确解码第二数据，则簇头节点可以向正确解码第二数据的簇成员节点发送SCI2，调度簇成员节点重传第一数据。Referring to FIG. 4 , it is a schematic flowchart of a communication method provided by an embodiment of the present application. The network device may send the first data to the cluster head node and the cluster member nodes on the PDSCH. The cluster member node may feed back to the cluster head node whether the first data is correctly decoded through a physical sidelink feedback channel (PSFCH). If the cluster head node does not correctly decode the first data, the cluster head node may send the first indication information SCI1 to the cluster member nodes that correctly decode the first data, and schedule the cluster member nodes to retransmit the first data. The cluster head node may also send UCI1 to the network device, indicating that the cluster head node and/or the cluster member nodes of the network device have not decoded the first data correctly and need to retransmit the data. The cluster member node that correctly decodes the first data can send the second indication information SCI2 according to the SCI1, and send the second data on the physical sidelink shared channel (physical sidelink shared channel, PSSCH). The cluster member node and the cluster head node can receive the SCI2 and receive the second data from the PSSCH according to the SCI2. Each cluster member node may send PSFCH2 to the cluster head node, and feed back to the cluster head node whether the second data is correctly decoded. The cluster head node may send UCI2 to the network device, indicating whether the cluster head node and/or the cluster member nodes correctly decode the second data. It should be understood that if the cluster head node and/or any cluster member node fails to decode the second data correctly, the cluster head node can send SCI2 to the cluster member node that correctly decodes the second data, and schedule the cluster member node to retransmit the first data.

参阅图5，为本申请实施例中通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 5, it is an exemplary flowchart of the communication method in the embodiment of the present application, which may include the following steps:

第一次传输：First transfer:

步骤501：网络设备采用HARQ-1进程号进行下行组播数据发送，其中NDI＝0。Step 501: The network device uses the HARQ-1 process ID to send downlink multicast data, where NDI=0.

由于簇头未正确解码该组播数据，因此可以调度正确解码该数据的簇成员节点进行数据重传。Since the cluster head does not correctly decode the multicast data, the cluster member nodes that correctly decode the data can be scheduled to retransmit the data.

步骤502：簇头节点向簇成员节点发送SCI1，调度簇成员节点进行数据重传。Step 502: The cluster head node sends SCI1 to the cluster member nodes, and schedules the cluster member nodes to retransmit data.

该SCI1中包含第二信息，第二信息指示发送重传数据；还包括进程号HARQ-1，进程号含义信息指示HARQ-1为下行组播进程号，第一信息表示第二数据(如重传数据)和第一数据(如组播数据)可以合并接收。由于网络设备发送组播数据时指示NDI＝0，因此SCI1中的NDI＝0。The SCI1 contains second information, the second information indicates sending retransmission data; it also includes a process number HARQ-1, the process number meaning information indicates that HARQ-1 is the downlink multicast process number, and the first information indicates the second data (such as retransmission). data) and the first data (such as multicast data) can be received in combination. Since the network device indicates NDI=0 when sending multicast data, NDI=0 in SCI1.

步骤503：簇成员节点根据SCI1发送SCI2和重传数据。Step 503: The cluster member node sends SCI2 and retransmits data according to SCI1.

这里的SCI2包括第二信息，第二信息指示接收重传数据；还包括HARQ-1，进程号含义信息指示HARQ-1为下行组播进程号，第一信息表示第二数据(如重传数据)和第一数据(如组播数据)可以合并接收，以及NDI＝0。因此，簇头节点和未正确解码组播数据的簇成员节点可以接收该SCI2，并根据SCI2的指示，将重传数据与组播数据合并接收。Here SCI2 includes second information, the second information indicates receiving retransmission data; also includes HARQ-1, the process number meaning information indicates that HARQ-1 is the downlink multicast process number, and the first information indicates the second data (such as retransmission data) ) and the first data (eg, multicast data) can be received in combination, and NDI=0. Therefore, the cluster head node and the cluster member nodes that do not correctly decode the multicast data can receive the SCI2, and combine the retransmission data with the multicast data according to the instructions of the SCI2.

第二次传输：Second transfer:

步骤504：基站采用HARQ-1进程号进行下行组播数据发送，但NDI翻转为1，表示该下行组播数据是新数据。Step 504: The base station uses the HARQ-1 process ID to send downlink multicast data, but the NDI is flipped to 1, indicating that the downlink multicast data is new data.

由于簇头节点没有正确解码组播数据，因此簇头节点可以向正确解码组播数据的簇成 员节点发送SCI1，调度簇成员节点进行数据重传。Since the cluster head node does not correctly decode the multicast data, the cluster head node can send SCI1 to the cluster member nodes that correctly decode the multicast data, and schedule the cluster member nodes to retransmit the data.

步骤505：簇头节点向簇成员节点发送SCI1，调度簇成员节点进行数据重传。Step 505: The cluster head node sends SCI1 to the cluster member nodes, and schedules the cluster member nodes to retransmit data.

该SCI1中包含第二信息，第二信息指示发送重传数据；还包括进程号HARQ-1，进程号含义信息指示HARQ-1为下行组播进程号，第一信息表示重传数据和组播数据可以合并接收。由于网络设备发送组播数据时指示NDI＝1，因此SCI1中的NDI＝1。The SCI1 contains second information, the second information indicates sending retransmission data; it also includes a process number HARQ-1, the process number meaning information indicates that HARQ-1 is a downlink multicast process number, and the first information indicates retransmission data and multicast Data can be received in combination. Since the network device indicates NDI=1 when sending multicast data, NDI=1 in SCI1.

步骤506：簇成员节点根据SCI1发送SCI2和重传数据。Step 506: The cluster member node sends SCI2 and retransmits data according to SCI1.

这里的SCI2包括第二信息，第二信息指示接收重传数据；还包括HARQ-1，进程号含义信息指示HARQ-1为下行组播进程号，第一信息表示组播数据和重传数据可以合并接收，以及NDI＝1。因此，簇头节点和未正确解码组播数据的簇成员节点可以接收该SCI2，并根据SCI2的指示，将重传数据与组播数据合并接收。Here SCI2 includes second information, the second information indicates that retransmission data is received; it also includes HARQ-1, the process number meaning information indicates that HARQ-1 is the downlink multicast process number, and the first information indicates that multicast data and retransmission data can be Combined reception, and NDI=1. Therefore, the cluster head node and the cluster member nodes that do not correctly decode the multicast data can receive the SCI2, and combine the retransmission data with the multicast data according to the instructions of the SCI2.

参阅图6，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 6, an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

第一次传输first transfer

步骤601：网络设备采用DL-HARQ-1进程号进行下行组播数据发送，且NDI＝0。Step 601: The network device uses the DL-HARQ-1 process number to send downlink multicast data, and NDI=0.

由于簇头节点未正确解码该组播数据，因此簇头节点可以调度簇成员节点进行数据重传。Since the cluster head node does not correctly decode the multicast data, the cluster head node can schedule the cluster member nodes to retransmit the data.

步骤602：簇头节点向簇成员节点发送SCI1，调度簇成员节点重传该组播数据。Step 602: The cluster head node sends SCI1 to the cluster member nodes, and schedules the cluster member nodes to retransmit the multicast data.

其中，该SCI1中包含进程号SL-HARQ-15和DL-HARQ-1，SCI1还包括第一信息和第二信息，第一信息指示重传数据和组播数据可以合并接收，第二信息指示发送重传数据，SCI1还包括NDI＝0。The SCI1 contains process numbers SL-HARQ-15 and DL-HARQ-1, and the SCI1 also includes first information and second information. The first information indicates that retransmission data and multicast data can be received in combination, and the second information indicates that To send retransmission data, SCI1 also includes NDI=0.

步骤603：簇成员节点根据SCI1发送SCI2和重传数据。Step 603: The cluster member node sends SCI2 and retransmits data according to SCI1.

其中，簇成员节点可以采用SL-HARQ-15进程发送重传数据。在SCI2中包含进程号SL-HARQ-15和DL-HARQ-1，SCI2还包括第一信息和第二信息，第一信息指示组播数据和重传数据可以合并接收，第二信息指示接收重传数据，NDI＝0。因此，簇头节点和未正确解码组播数据的簇成员节点可以接收该SCI2，并根据SCI2的指示，将重传数据与组播数据合并接收。Among them, the cluster member nodes can use the SL-HARQ-15 process to send retransmission data. SCI2 contains process IDs SL-HARQ-15 and DL-HARQ-1, SCI2 also includes first information and second information, the first information indicates that multicast data and retransmission data can be received in combination, and the second information indicates that the received retransmission data To transmit data, NDI=0. Therefore, the cluster head node and the cluster member nodes that do not correctly decode the multicast data can receive the SCI2, and combine the retransmission data with the multicast data according to the instructions of the SCI2.

第二次传输second transmission

步骤604：网络设备DL-HARQ-1进程号进行下行组播数据发送。其中，由于本次DL-HARQ-1进程中的数据与第一次传输中的DL-HARQ-1进程中的数据不同，因此NDI＝1。Step 604: The network device DL-HARQ-1 process number sends downlink multicast data. Wherein, since the data in the current DL-HARQ-1 process is different from the data in the DL-HARQ-1 process in the first transmission, NDI=1.

由于簇头节点没有正确解码第一数据，因此簇头节点可以向正确解码的簇成员节点发送SCI1，调度簇成员节点进行数据重传。Since the cluster head node does not decode the first data correctly, the cluster head node can send SCI1 to the correctly decoded cluster member nodes, and schedule the cluster member nodes to retransmit the data.

步骤605：簇头节点向簇成员节点发送SCI1，调度簇成员节点1进行数据重传。Step 605: The cluster head node sends the SCI1 to the cluster member node, and schedules thecluster member node 1 to perform data retransmission.

其中，该SCI2中包含进程号SL-HARQ-15和DL-HARQ-1，SCI2还包括第一信息和第二信息，第一信息指示重传数据和组播数据可以合并接收，第二信息指示发送重传数据，SCI1还包括NDI＝1。Wherein, the SCI2 contains process numbers SL-HARQ-15 and DL-HARQ-1, and SCI2 also includes first information and second information. The first information indicates that retransmission data and multicast data can be received in combination, and the second information indicates that To send retransmission data, SCI1 also includes NDI=1.

步骤606：簇成员节点根据SCI1发送SCI2和重传数据。Step 606: The cluster member node sends SCI2 and retransmits data according to SCI1.

其中，簇成员节点可以采用SL-HARQ-15进程发送重传数据。在SCI2中包含进程号SL-HARQ-15和DL-HARQ-1，SCI2还包括第一信息和第二信息，第一信息指示组播数据和重传数据可以合并接收，第二信息指示接收重传数据，NDI＝1。因此，簇头节点和未正确解码组播数据的簇成员节点可以接收该SCI2，并根据SCI2的指示，将重传数据与组播数据合并接收。Among them, the cluster member nodes can use the SL-HARQ-15 process to send retransmission data. SCI2 contains process IDs SL-HARQ-15 and DL-HARQ-1, SCI2 also includes first information and second information, the first information indicates that multicast data and retransmission data can be received in combination, and the second information indicates that the received retransmission data To transmit data, NDI=1. Therefore, the cluster head node and the cluster member nodes that do not correctly decode the multicast data can receive the SCI2, and combine the retransmission data with the multicast data according to the instructions of the SCI2.

以上介绍了在簇头节点(如第二通信装置)未正确解码网络设备发送的数据时，簇内的终端设备进行数据重传的示例性流程。参阅图7，为簇头节点正确解码网络设备发送的数据时，对簇内的部分或全部簇成员节点进行数据重传的示例性流程，可以包括以下步骤：The above describes an exemplary flow of data retransmission by the terminal device in the cluster when the cluster head node (eg, the second communication device) does not correctly decode the data sent by the network device. Referring to FIG. 7 , when the cluster head node correctly decodes the data sent by the network device, an exemplary process for retransmitting data to some or all of the cluster member nodes in the cluster may include the following steps:

步骤701：网络设备发送第一数据，以及第一通信装置和第二通信装置接收该第一数据。Step 701: The network device sends first data, and the first communication apparatus and the second communication apparatus receive the first data.

其中，网络设备在发送第一数据时，可以发送DCI，调度PDSCH。在该DCI中可以指示第一数据在PDSCH上的时域和频域资源。簇内的终端设备，例如簇头节点、簇成员节点，可以使用相同的RNTI在相同的搜索空间搜索网络设备发送的该DCI，并从中解调出第一数据的指示信息，根据该指示信息在PDSCH上接收第一数据。Wherein, when sending the first data, the network device may send DCI and schedule PDSCH. The time domain and frequency domain resources of the first data on the PDSCH may be indicated in the DCI. The terminal equipment in the cluster, such as the cluster head node and the cluster member node, can use the same RNTI to search for the DCI sent by the network equipment in the same search space, and demodulate the indication information of the first data from it. The first data is received on the PDSCH.

簇成员节点(如第二通信装置)可以向簇头节点(如第一通信装置)发送第三指示信息或第六指示信息。这里的第六指示信息可以与前述第六指示信息相同。其中，如果簇成员节点正确解码第一数据，那么簇成员节点可以向簇头节点发送第三指示信息，用于指示簇成员节点正确解码第一数据。例如，第二通信装置正确解码第一数据，则第二通信装置可以向第一通信装置发送ACK。如果簇成员节点未正确解码第一数据，那么簇成员节点可以向簇头节点发送第六指示信息，用于指示簇成员节点未正确解码第一数据。例如，第二通信装置未正确解码第六指示信息，则第二通信装置可以向第一通信装置发送NACK。The cluster member node (eg, the second communication apparatus) may send the third indication information or the sixth indication information to the cluster head node (eg, the first communication apparatus). The sixth indication information here may be the same as the foregoing sixth indication information. Wherein, if the cluster member node correctly decodes the first data, the cluster member node may send third indication information to the cluster head node, which is used to instruct the cluster member node to correctly decode the first data. For example, if the second communication device decodes the first data correctly, the second communication device may send an ACK to the first communication device. If the cluster member node does not correctly decode the first data, the cluster member node may send sixth indication information to the cluster head node, which is used to indicate that the cluster member node does not correctly decode the first data. For example, if the second communication apparatus does not correctly decode the sixth indication information, the second communication apparatus may send a NACK to the first communication apparatus.

如果簇头节点接收到簇成员节点发送的第六指示信息，则簇头节点还可以向网络设备发送第五指示信息，用于指示簇头节点和/或簇成员节点未正确解码网络设备发送的第一数据。该第五指示信息可以由UCI指示。应理解，由于簇头节点正确解码第一数据，簇成员节点未正确解码第一数据，因此可以由簇头节点进行数据重传。If the cluster head node receives the sixth indication information sent by the cluster member node, the cluster head node may also send fifth indication information to the network device, which is used to indicate that the cluster head node and/or the cluster member node did not correctly decode the information sent by the network device. first data. The fifth indication information may be indicated by UCI. It should be understood that since the cluster head node correctly decodes the first data and the cluster member node does not correctly decode the first data, the cluster head node can perform data retransmission.

步骤702：第一通信装置发送第二数据，以及第二通信装置接收该第二数据。Step 702: The first communication device sends the second data, and the second communication device receives the second data.

这里的第二数据可以是第一数据的重传数据。第一通信装置还可以发送第二指示信息。该第二指示信息可以包括第二数据的信息。其中，第二指示信息可以包含前述的第一指示信息中的一至四的信息。The second data here may be retransmission data of the first data. The first communication apparatus may also send second indication information. The second indication information may include information of the second data. Wherein, the second indication information may includeinformation 1 to 4 in the foregoing first indication information.

举例来说，该第二指示信息可以包括第二数据的进程号信息。例如，第二指示信息可以包括第一进程号和进程号含义指示信息。该进程号含义指示信息可以指示第一进程号是网络设备发送第一数据所使用的进程号。比如，第二指示信息中可以包括进程号HARQ-1，进程号含义指示信息指示HARQ-1是下行组播进程号。因此，第二通信装置可以根据该第二指示信息，接收HARQ-1进程的重传数据。For example, the second indication information may include process number information of the second data. For example, the second indication information may include the first process number and the process number meaning indication information. The process number meaning indication information may indicate that the first process number is a process number used by the network device to send the first data. For example, the second indication information may include a process number HARQ-1, and the process number meaning indication information indicates that HARQ-1 is a downlink multicast process number. Therefore, the second communication apparatus may receive the retransmission data of the HARQ-1 process according to the second indication information.

又例如，第二指示信息可以包括第二进程号和第三进程号。比如，第二指示信息中可以包括进程号SL-HARQ-15和DL-HARQ-1。因此，第二通信装置可以根据该第二指示信息，通过SL-HARQ-15接收DL-HARQ-1进程的重传数据。For another example, the second indication information may include the second process number and the third process number. For example, the second indication information may include process numbers SL-HARQ-15 and DL-HARQ-1. Therefore, the second communication apparatus may receive the retransmission data of the DL-HARQ-1 process through the SL-HARQ-15 according to the second indication information.

该第二指示信息中还可以包括第一信息。第一信息可以用于指示第一数据和第二数据是否可以合并接收。例如，第二指示信息中可以包括进程号HARQ-1，进程号含义指示信息指示HARQ-1是下行组播进程号，且第二指示信息中的第二信息指示第一数据和第二数据可以合并接收。因此，第二通信装置可以根据该第二指示信息，将HARQ-1进程的数据和第一通信装置发送的HARQ-1进程的重传数据合并接收。又例如，第二指示信息中包括进程号SL-HARQ-15和DL-HARQ-1，且第二指示信息中的第一信息指示第一数据和第二数据可以合并接收。因此，第二通信装置可以根据该第二指示信息，将第一通信装置使用SL-HARQ-15进程发送的DL-HARQ-1进程的重传数据，与网络设备采用DL-HARQ-1进 程发送的第一数据合并接收。The second indication information may further include the first information. The first information may be used to indicate whether the first data and the second data can be received in combination. For example, the second indication information may include a process number HARQ-1, the process number meaning indication information indicates that HARQ-1 is a downlink multicast process number, and the second information in the second indication information indicates that the first data and the second data can be Merge reception. Therefore, the second communication apparatus may combine and receive the data of the HARQ-1 process and the retransmission data of the HARQ-1 process sent by the first communication apparatus according to the second indication information. For another example, the second indication information includes process numbers SL-HARQ-15 and DL-HARQ-1, and the first information in the second indication information indicates that the first data and the second data can be received in combination. Therefore, the second communication device can send the retransmission data of the DL-HARQ-1 process sent by the first communication device using the SL-HARQ-15 process to the network device using the DL-HARQ-1 process according to the second indication information. The first data merge is received.

该第二指示信息还可以包括第二信息。这里的第二信息可以指示第二通信装置接收第二数据。因此，第二通信装置可以根据该第二指示信息的指示，接收第二数据。The second indication information may also include second information. The second information here may indicate that the second communication apparatus receives the second data. Therefore, the second communication apparatus may receive the second data according to the indication of the second indication information.

该第二指示信息中还可以包括第三信息。该第三信息可以指示第二数据是否为新数据。例如，第三信息可以是NDI。举例来说，NDI翻转时表示第二数据为新数据，NDI未翻转时第二数据不是新数据。The second indication information may further include third information. The third information may indicate whether the second data is new data. For example, the third information may be NDI. For example, when the NDI is flipped, it means that the second data is new data, and when the NDI is not flipped, the second data is not new data.

参阅图8，为本申请实施例提供的通信方法的示例性流程图。其中，网络设备可以在PDSCH上向簇头节点和簇成员节点发送第一数据。簇成员节点可以在物理侧链路反馈信道PSFCH1向簇头节点反馈是否正确解码第一数据。如果簇头节点正确解码第一数据，而存在簇头节点未正确解码第一数据，则簇头节点可以进行第一数据的数据重传。簇头节点可以向网络设备发送UCI1，指示簇成员节点未正确解码第一数据，需要进行数据重传。簇头节点可以发送第二指示信息SCI1，以及在PSSCH1上发送第二数据。这里的第二数据可以是第一数据的重传数据。未正确解码第一数据的簇成员节点可以接收该SCI1，并根据SCI1的指示在PSSCH1上接收第二数据。各个簇成员节点可以向簇头节点发送PSFCH2，向簇头节点反馈是否正确解码第二数据。簇头节点可以向网络设备发送UCI2，指示簇头节点和/或簇成员节点是否正确解码第二数据。应理解，如果任一簇成员节点未正确解码第二数据，则簇头节点可以发送SCI2(图中未示出)，重传第一数据。Referring to FIG. 8 , it is an exemplary flowchart of a communication method provided by an embodiment of the present application. The network device may send the first data to the cluster head node and the cluster member nodes on the PDSCH. The cluster member node may feed back to the cluster head node whether the first data is correctly decoded through the physical side link feedback channel PSFCH1. If the cluster head node correctly decodes the first data, but the cluster head node does not correctly decode the first data, the cluster head node can perform data retransmission of the first data. The cluster head node may send UCI1 to the network device, indicating that the cluster member node has not correctly decoded the first data and needs to retransmit the data. The cluster head node may send the second indication information SCI1 and send the second data on PSSCH1. The second data here may be retransmission data of the first data. A cluster member node that does not decode the first data correctly can receive the SCI1 and receive the second data on PSSCH1 according to the instruction of the SCI1. Each cluster member node may send PSFCH2 to the cluster head node, and feed back to the cluster head node whether the second data is correctly decoded. The cluster head node may send UCI2 to the network device, indicating whether the cluster head node and/or the cluster member nodes correctly decode the second data. It should be understood that if any cluster member node fails to decode the second data correctly, the cluster head node can send SCI2 (not shown in the figure) to retransmit the first data.

参阅图9，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 9, an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

第一次传输first transfer

步骤901：网络设备采用HARQ-1进程号进行下行组播数据发送，其中NDI＝0。Step 901: The network device uses the HARQ-1 process ID to send downlink multicast data, where NDI=0.

其中，簇头节点正确解码该组播数据，存在簇成员节点未正确解码该组播数据。因此，簇头节点可以进行数据重传。The cluster head node decodes the multicast data correctly, and the existing cluster member nodes do not decode the multicast data correctly. Therefore, the cluster head node can perform data retransmission.

步骤902：簇头节点发送第二指示信息和重传数据。Step 902: The cluster head node sends the second indication information and retransmits the data.

其中，该第二指示信息中包括进程号HARQ-1，进程号含义指示信息指示HARQ-1是下行组播进程号，第二指示信息中还包括第一信息和第二信息，以及NDI＝0。其中，第一信息指示重传数据和组播数据可以合并接收，第二信息指示接收重传数据。因此，未正确解码组播数据的簇成员节点可以接收该第二指示信息，并根据第二指示信息的指示将重传数据和组播数据进行合并接收。The second indication information includes the process ID HARQ-1, the process ID meaning indication information indicates that HARQ-1 is the downlink multicast process ID, the second indication information further includes the first information and the second information, and NDI=0 . The first information indicates that retransmission data and multicast data can be received in combination, and the second information indicates that retransmission data is received. Therefore, the cluster member nodes that do not correctly decode the multicast data can receive the second indication information, and receive the retransmission data and the multicast data in combination according to the indication of the second indication information.

第二次传输second transmission

步骤903：网络设备再次采用HARQ-1进程号进行下行组播数据重传，但NDI翻转为1。Step 903: The network device uses the HARQ-1 process number again to retransmit the downlink multicast data, but the NDI is flipped to 1.

由于簇头节点正确解码该组播数据，但存在簇成员节点未正确解码该组播数据。因此，簇头节点可以进行数据重传。Because the cluster head node correctly decodes the multicast data, but the existing cluster member nodes do not correctly decode the multicast data. Therefore, the cluster head node can perform data retransmission.

步骤904：簇头节点发送第二指示信息和重传数据。Step 904: The cluster head node sends the second indication information and retransmits the data.

其中，该第二指示信息中包括进程号HARQ-1，进程号含义指示信息指示HARQ-1是下行组播进程号，第二指示信息中还包括第一信息和第二信息，以及NDI＝1。其中，第一信息指示重传数据和组播数据可以合并接收，第二信息指示接收重传数据。因此，未正确解码组播数据的簇成员节点可以接收该第二指示信息，并根据第二指示信息的指示将重传数据和组播数据进行合并接收。The second indication information includes the process ID HARQ-1, the process ID meaning indication information indicates that HARQ-1 is the downlink multicast process ID, the second indication information further includes the first information and the second information, and NDI=1 . The first information indicates that the retransmitted data and the multicast data can be received in combination, and the second information indicates that the retransmitted data is received. Therefore, a cluster member node that does not correctly decode the multicast data can receive the second indication information, and receive the retransmission data and the multicast data in combination according to the indication of the second indication information.

参阅图10，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 10, an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

步骤1001：网络设备采用DL-HARQ-1进程号进行下行组播数据发送，其中NDI＝0。Step 1001: The network device uses the DL-HARQ-1 process number to send downlink multicast data, where NDI=0.

由于簇头节点正确解码该组播数据，但存在簇成员节点未正确解码该组播数据，因此簇头节点可以进行数据重传。Since the cluster head node correctly decodes the multicast data, but some cluster member nodes do not correctly decode the multicast data, the cluster head node can retransmit the data.

步骤1002：簇头节点发送第二指示信息和重传数据。Step 1002: The cluster head node sends the second indication information and retransmits the data.

其中，该第二指示信息中包括进程号SL-HARQ-15和DL-HARQ-1。第二指示信息中还包括第一信息和第二信息，以及NDI＝0。其中，第一信息指示重传数据和组播数据可以合并接收，第二信息指示接收重传数据。因此，未正确解码组播数据的簇成员节点可以接收该第二指示信息，并根据第二指示信息的指示将重传数据和组播数据进行合并接收。Wherein, the second indication information includes process numbers SL-HARQ-15 and DL-HARQ-1. The second indication information further includes the first information and the second information, and NDI=0. The first information indicates that the retransmitted data and the multicast data can be received in combination, and the second information indicates that the retransmitted data is received. Therefore, a cluster member node that does not correctly decode the multicast data can receive the second indication information, and receive the retransmission data and the multicast data in combination according to the indication of the second indication information.

第二次传输second transmission

步骤1003：网络设备采用DL-HARQ-1进程号进行下行组播数据发送，但NDI翻转为1。Step 1003: The network device uses the DL-HARQ-1 process number to send downlink multicast data, but the NDI is flipped to 1.

由于簇头节点正确解码该组播数据，但存在簇成员节点未正确解码该组播数据，因此簇头节点可以进行数据重传。Since the cluster head node correctly decodes the multicast data, but some cluster member nodes do not correctly decode the multicast data, the cluster head node can retransmit the data.

步骤1002：簇头节点发送第二指示信息和重传数据。Step 1002: The cluster head node sends the second indication information and retransmits the data.

其中，该第二指示信息中包括进程号SL-HARQ-15和DL-HARQ-1。第二指示信息中还包括第一信息和第二信息，以及NDI＝1。其中，第一信息指示重传数据和组播数据可以合并接收，第二信息指示接收重传数据。因此，未正确解码组播数据的簇成员节点可以接收该第二指示信息，并根据第二指示信息的指示将重传数据和组播数据进行合并接收。Wherein, the second indication information includes process numbers SL-HARQ-15 and DL-HARQ-1. The second indication information further includes the first information and the second information, and NDI=1. The first information indicates that the retransmitted data and the multicast data can be received in combination, and the second information indicates that the retransmitted data is received. Therefore, a cluster member node that does not correctly decode the multicast data can receive the second indication information, and receive the retransmission data and the multicast data in combination according to the indication of the second indication information.

本申请实施例中，通过图3-图10示出了簇内的终端设备进行下行数据重传的方法。而本申请实施例中，簇内的终端设备还可以进行数据传输。例如，簇头节点可以将数据发送给簇成员节点，或者簇头节点可以指示簇成员节点发送数据等。其中，该方法可以包括如下的步骤：In this embodiment of the present application, FIG. 3 to FIG. 10 illustrate a method for retransmission of downlink data by a terminal device in a cluster. However, in this embodiment of the present application, the terminal devices in the cluster can also perform data transmission. For example, the cluster head node may send data to the cluster member nodes, or the cluster head node may instruct the cluster member nodes to send data, and so on. Wherein, the method may include the following steps:

步骤A1：第一通信装置发送第二数据。Step A1: The first communication device sends the second data.

这里的第二数据可以是侧链路数据，也可以是针对网络设备发送的组播数据的重传数据。第一通信装置还可以发送第二指示信息。第二指示信息中可以包括第二数据所对应的进程号。以下，介绍第二数据所对应的进程号的实现方式：The second data here may be side link data, or may be retransmission data for multicast data sent by the network device. The first communication apparatus may also send second indication information. The second indication information may include a process number corresponding to the second data. The following describes the implementation of the process ID corresponding to the second data:

方式一：第二指示信息可以包括进程号和进程号含义信息。其中，进程号含义信息指示该进程号是第一通信装置发送第二数据使用的进程号，或者是网络设备发送第一数据使用的进程号。Manner 1: The second indication information may include process number and process number meaning information. The process number meaning information indicates that the process number is the process number used by the first communication device to send the second data, or the process number used by the network device to send the first data.

例如，如果第一通信装置发送的第二数据是侧链路新数据，那么进程号指示信息指示该进程号是第一通信装置发送第二数据所使用的进程号。如果第一通信装置发送的第二数据是网络设备发送的第一数据的重传数据，那么进程号指示信息指示该进程号是下行组播进程号，即网络设备发送第一数据时所使用的进程号。For example, if the second data sent by the first communication device is new side link data, the process number indication information indicates that the process number is the process number used by the first communication device to send the second data. If the second data sent by the first communication device is retransmission data of the first data sent by the network device, the process number indication information indicates that the process number is a downlink multicast process number, that is, the process number used by the network device to send the first data Process ID.

方式二：第二指示信息可以包括第一进程号和第二进程号。Manner 2: The second indication information may include the first process number and the second process number.

其中，第一进程号和第二进程号的具体实现方式，包括以下3种：Among them, the specific implementation methods of the first process number and the second process number include the following three types:

第1种：如果该第二数据为新数据，则该第一进程号为预设值，该第二进程号指示第一通信装置发送第二数据所使用的进程号。Type 1: if the second data is new data, the first process number is a preset value, and the second process number indicates the process number used by the first communication device to send the second data.

例如，第一进程号为空值，第二进程号是HARQ-15。或者，第一进程号可以全部为0，第二进程号是SL-HARQ-15。For example, the first process number is null and the second process number is HARQ-15. Alternatively, the first process number may be all 0, and the second process number may be SL-HARQ-15.

第2种：如果该第二数据为新数据，则第一进程号为预设值，第一进程号指示第一通 信装置发送第二数据所使用的进程号。The second kind: if the second data is new data, the first process number is a preset value, and the first process number indicates the process number used by the first communication device to send the second data.

例如，如果该第二数据是新数据，则第一进程号可以是SL-HARQ-X。其中，X可以是1、2等值。举例来说，如果第一通信装置想要向第二通信装置发送新数据，则第二指示信息中第一进程号可以为SL-HARQ-1。For example, if the second data is new data, the first process number may be SL-HARQ-X. Among them, X can be 1, 2 and so on. For example, if the first communication device wants to send new data to the second communication device, the first process number in the second indication information may be SL-HARQ-1.

第3种：如果该第二数据为网络设备发送的第一数据的重传数据，则第一进程号指示第一通信装置发送第二数据所使用的进程号，第二进程号为网络设备发送第一数据所使用的进程号。Type 3: if the second data is retransmission data of the first data sent by the network device, the first process number indicates the process number used by the first communication device to send the second data, and the second process number is sent by the network device Process ID used by the first data.

例如，第二数据为DL-HARQ-1进程的数据的重传数据，且第一通信装置采用进程号SL-HARQ-1发送第二数据，那么第二指示信息中第一进程号可以为SL-HARQ-1，第二进程号可以为DL-HARQ-1。For example, if the second data is retransmission data of the data of the DL-HARQ-1 process, and the first communication device uses the process ID SL-HARQ-1 to send the second data, then the first process ID in the second indication information may be SL -HARQ-1, the second process number may be DL-HARQ-1.

在本申请实施例中，该第一通信装置可以是簇头节点或者还可以是簇成员节点。以下分别以第一通信装置为簇头节点或簇成员节点为例，介绍本申请实施例提供的通信方法。In this embodiment of the present application, the first communication device may be a cluster head node or a cluster member node. Hereinafter, the communication method provided by the embodiment of the present application is introduced by taking the first communication device as a cluster head node or a cluster member node as an example.

一、第一通信装置为簇头节点。1. The first communication device is a cluster head node.

如果该第一通信装置为簇头节点，且该第二数据为网络设备发送的第一数据的重传数据时，第一通信装置还可以接收第二通信装置发送的第六指示信息。该第六指示信息可以用于指示第二通信装置未正确解码第一数据。该第二通信装置为第一通信装置所在簇的成员节点。If the first communication device is a cluster head node and the second data is retransmission data of the first data sent by the network device, the first communication device may also receive sixth indication information sent by the second communication device. The sixth indication information may be used to indicate that the second communication apparatus does not correctly decode the first data. The second communication device is a member node of the cluster where the first communication device is located.

另外需要说明的是，第一通信装置还可以向网络设备发送第五指示信息。该第五指示信息用于指示存在簇成员节点未正确解码第一数据。In addition, it should be noted that the first communication apparatus may also send fifth indication information to the network device. The fifth indication information is used to indicate that there is a cluster member node that does not correctly decode the first data.

二、第一通信装置为簇成员节点。2. The first communication device is a cluster member node.

如果该第一通信装置为簇成员节点，第一通信装置还可以接收第二通信装置发送的第一指示信息。该第一指示信息可以用于调度第一通信装置发送第二数据。这里的第二通信装置是第一通信装置的簇头节点。其中，第一指示信息中可以包括如前面所述的第二数据的进程号信息，如方式一和方式二所述的信息。If the first communication device is a cluster member node, the first communication device may also receive the first indication information sent by the second communication device. The first indication information may be used to schedule the first communication apparatus to send the second data. The second communication device here is the cluster head node of the first communication device. Wherein, the first indication information may include the process number information of the second data as described above, such as the information described in the first and second modes.

如果该第一通信装置为簇成员节点，且该第二数据为重传数据，那么第一通信装置还可以向第二通信装置发送第三指示信息。该第三指示信息可以用于指示第一通信装置正确解码第一数据。因此，第二通信装置可以通过前述第一指示信息调度第一通信装置进行第一数据的数据重传。If the first communication device is a cluster member node and the second data is retransmission data, the first communication device may also send third indication information to the second communication device. The third indication information may be used to instruct the first communication apparatus to correctly decode the first data. Therefore, the second communication apparatus may schedule the first communication apparatus to perform data retransmission of the first data by using the aforementioned first indication information.

在本申请实施中，该第二指示信息、第一指示信息中还可以包括前述的第一信息、第二信息和第三信息。其中，第一信息、第二信息和第三信息的相关描述可以参见如图3、图7所示的相关描述，此处不再赘述。In the implementation of this application, the second indication information and the first indication information may further include the aforementioned first information, second information and third information. For the related descriptions of the first information, the second information and the third information, reference may be made to the related descriptions shown in FIG. 3 and FIG. 7 , and details are not repeated here.

步骤A2：第二通信装置接收该第二数据。Step A2: The second communication device receives the second data.

其中，第二通信装置可以根据第二指示信息接收该第二数据。例如，如果第二指示信息中的进程号指示信息指示该进程号是第一通信装置发送第二数据所使用的进程号，那么第二通信装置接收的第二数据可以是侧链路的新数据。又例如，如果第二指示信息中的第一进程号为预设值，第二进程号指示第一通信装置发送第二数据所使用的进程号，那么第二通信装置接收的第二数据可以是侧链路的新数据。又例如，如果第二指示信息中的第一进程号为预设值，第一进程号指示第一通信装置发送第二数据所使用的进程号，那么第二通信装置接收的第二数据为侧链路的新数据。The second communication apparatus may receive the second data according to the second indication information. For example, if the process number indication information in the second indication information indicates that the process number is the process number used by the first communication device to send the second data, the second data received by the second communication device may be new data of the side link . For another example, if the first process number in the second indication information is a preset value, and the second process number indicates the process number used by the first communication device to send the second data, the second data received by the second communication device may be New data for the side link. For another example, if the first process number in the second indication information is a preset value, and the first process number indicates the process number used by the first communication device to send the second data, then the second data received by the second communication device is a side number. new data for the link.

或者，如果第二指示信息中的第一进程号指示第一通信装置发送第二数据所使用的进 程号，第二进程号为网络设备发送第一数据所使用的进程号，那么第二通信装置接收的第二数据是第一数据的重传数据。Or, if the first process number in the second indication information indicates the process number used by the first communication device to send the second data, and the second process number is the process number used by the network device to send the first data, then the second communication device The received second data is retransmission data of the first data.

在本申请实施例中第二通信装置可以是簇头节点或者还可以是簇成员节点。以下分别以第二通信装置为簇头节点或簇成员节点为例，介绍本申请实施例提供的通信方法。In this embodiment of the present application, the second communication apparatus may be a cluster head node or may also be a cluster member node. Hereinafter, the communication method provided by the embodiment of the present application is introduced by taking the second communication device as a cluster head node or a cluster member node as an example.

一、第二通信装置为簇头节点。1. The second communication device is a cluster head node.

如果该第二通信装置为簇头节点，第二通信装置可以向第一通信装置发送第一指示信息。该第一指示信息可以用于调度第一通信装置发送第二数据。这里的第一通信装置为第二通信装置的簇成员接待。其中，第一指示信息中可以包括如前面所述的第二数据的进程号信息，如方式一和方式二所述的信息。If the second communication device is a cluster head node, the second communication device may send the first indication information to the first communication device. The first indication information may be used to schedule the first communication apparatus to send the second data. The first communication device here is hosted by a cluster member of the second communication device. Wherein, the first indication information may include the process number information of the second data as described above, such as the information described in the first and second modes.

如果该第二通信装置为簇头节点，且该第二数据为重传数据，那么该第二通信装置还可以接收第一通信装置发送的第三指示信息。该第三指示信息可以用于指示第一通信装置正确解码第一数据。因此，第二通信装置可以通过前述第一指示信息调度第一通信装置进行第一数据的数据重传。If the second communication device is a cluster head node and the second data is retransmission data, the second communication device may also receive third indication information sent by the first communication device. The third indication information may be used to instruct the first communication apparatus to correctly decode the first data. Therefore, the second communication apparatus may schedule the first communication apparatus to perform data retransmission of the first data by using the aforementioned first indication information.

另外需要说明的是，第二通信装置还可以向网络设备发送第五指示信息。该第五指示信息用于指示存在簇成员节点未正确解码第一数据。In addition, it should be noted that the second communication apparatus may also send fifth indication information to the network device. The fifth indication information is used to indicate that there is a cluster member node that does not correctly decode the first data.

二、第二通信装置为簇成员节点。2. The second communication device is a cluster member node.

如果该第二通信装置为簇成员节点，且该第二数据为网络设备发送的第一数据的重传数据时，则第二通信装置可以向第一通信装置发送第六指示信息。该第六指示信息可以用于指示第二通信装置未正确解码第一数据。其中，第一通信装置为第二通信装置的簇头节点。If the second communication device is a cluster member node and the second data is retransmission data of the first data sent by the network device, the second communication device may send sixth indication information to the first communication device. The sixth indication information may be used to indicate that the second communication apparatus does not correctly decode the first data. The first communication device is a cluster head node of the second communication device.

参阅图11，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 11 , an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

第一次传输first transfer

步骤1101：簇头节点发送SCI1和数据1。Step 1101: The cluster head node sends SCI1 anddata 1.

其中，该SCI1中包含第二信息，该第二信息指示接收数据1，且该SCI1中包含进程号HARQ-15，进程号含义指示信息指示HARQ-15为侧链路进程号。在SCI1中NDI＝0。因此，簇成员节点可以根据该SCI1接收数据1。Wherein, the SCI1 contains second information, the second information indicates receiveddata 1, and the SCI1 contains a process ID HARQ-15, and the process ID meaning indication information indicates that HARQ-15 is the side link process ID. NDI=0 in SCI1. Therefore, the cluster member node can receivedata 1 according to this SCI1.

第二次传输second transmission

步骤1102：簇头节点发送SCI2和数据2。Step 1102: The cluster head node sends SCI2 and data 2.

其中，该SCI2中包含第二信息，该第二信息指示接收数据2，且该SCI2中包含继承号HARQ-15，进程号含义指示信息指示HARQ-15为侧链路进程号。在SCI2中NDI翻转为1。或者该SCI2中NDI为X。因此，簇成员节点可以根据该SCI2接收数据2。Wherein, the SCI2 contains second information, the second information indicates the received data 2, and the SCI2 contains the succession number HARQ-15, and the process number meaning indication information indicates that HARQ-15 is the side link process number. NDI flips to 1 in SCI2. Or the NDI in this SCI2 is X. Therefore, cluster member nodes can receive data 2 according to this SCI2.

参阅图12，为本申请实施例中提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 12, it is an exemplary flowchart of the communication method provided in the embodiment of the present application, which may include the following steps:

步骤1201：簇头节点发送SCI1和数据1。Step 1201: The cluster head node sends SCI1 anddata 1.

其中，该SCI1中包含第二信息，该第二信息指示接收数据1，且该SCI1中包含的第一进程号为空值，第二进程号为SL-HARQ-15。在SCI1中NDI＝0。因此，簇成员节点可以根据该SCI1接收数据1。Wherein, the SCI1 contains second information, the second information indicates receiveddata 1, the first process number contained in the SCI1 is a null value, and the second process number is SL-HARQ-15. NDI=0 in SCI1. Therefore, the cluster member node can receivedata 1 according to this SCI1.

第二次传输second transmission

步骤1202：簇头节点发送SCI2和数据2。Step 1202: The cluster head node sends SCI2 and data 2.

其中，该SCI2中包含第二信息，该第二信息指示接收数据2，且该SCI1中包含的第一进程号为空值，第二进程号为SL-HARQ-15。在SCI1中NDI翻转为1，或者NDI＝X。 因此，簇成员节点可以根据该SCI2接收数据2。Wherein, the SCI2 contains second information, the second information indicates the received data 2, the first process number contained in the SCI1 is a null value, and the second process number is SL-HARQ-15. NDI is toggled to 1 in SCI1, or NDI=X. Therefore, cluster member nodes can receive data 2 according to this SCI2.

参阅图13，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 13, an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

第一次传输first transfer

步骤1301：簇头节点可以向簇成员节点发送SCI1，调度簇成员节点发送数据1。Step 1301: The cluster head node may send SCI1 to the cluster member nodes, and schedule the cluster member nodes to senddata 1.

这里的SCI1中可以包含第二信息，该第二信息用于指示发送数据1。该SCI1中包含进程号HARQ-15，进程号含义指示信息指示该HARQ-15为侧链路数据。在该SCI1中NDI＝0。Here, SCI1 may contain second information, where the second information is used to indicate thatdata 1 is sent. The SCI1 contains a process number HARQ-15, and the process number meaning indication information indicates that the HARQ-15 is side link data. NDI=0 in this SCI1.

步骤1302：簇成员节点向簇头发送SCI2和数据1。Step 1302: The cluster member node sends SCI2 anddata 1 to the cluster head.

这里的SCI2中可以包含第二信息，该第二信息用于指示接收数据1。该SCI2中还包含进程号HARQ-15，进程号含义指示信息指示HARQ-15为侧链路数据。在该SCI2中NDI＝0。The SCI2 here may contain second information, where the second information is used to indicate that thedata 1 is received. The SCI2 also includes a process number HARQ-15, and the process number meaning indication information indicates that the HARQ-15 is side link data. NDI=0 in this SCI2.

第二次传输second transmission

步骤1303：簇头节点可以向簇成员节点发送SCI1，调度簇成员节点发送数据1。Step 1303: The cluster head node may send SCI1 to the cluster member nodes, and schedule the cluster member nodes to senddata 1.

这里的SCI1中可以包含第二信息，该第二信息用于指示发送数据1。该SCI1中包含进程号HARQ-15，进程号含义指示信息指示该HARQ-15为侧链路数据。在该SCI1中NDI翻转为1。或者在该SCI1中NDI＝X。Here, SCI1 may contain second information, where the second information is used to indicate thatdata 1 is sent. The SCI1 contains a process number HARQ-15, and the process number meaning indication information indicates that the HARQ-15 is side link data. NDI flips to 1 in this SCI1. Or NDI=X in this SCI1.

步骤1304：簇成员节点向簇头节点发送SCI2和数据1。Step 1304: The cluster member node sends SCI2 anddata 1 to the cluster head node.

这里的SCI2中可以包含第二信息，该第二信息用于指示接收数据1。该SCI2中还包含进程号HARQ-15，进程号含义指示信息指示HARQ-15为侧链路数据。在该SCI2中NDI＝1。或者该SCI2中NDI＝X。The SCI2 here may contain second information, where the second information is used to indicate that thedata 1 is received. The SCI2 also includes a process number HARQ-15, and the process number meaning indication information indicates that the HARQ-15 is side link data. NDI=1 in this SCI2. Or NDI=X in this SCI2.

参阅图14，为本申请实施例提供的通信方法的示例性流程图，可以包括以下步骤：Referring to FIG. 14, an exemplary flowchart of a communication method provided by an embodiment of the present application may include the following steps:

步骤1401：簇头节点向簇成员节点发送SCI1，调度簇成员节点发送数据1。Step 1401: The cluster head node sends SCI1 to the cluster member nodes, and schedules the cluster member nodes to senddata 1.

这里的SCI1中可以包含第二信息，该第二信息用于指示发送数据1，且在SCI1中包含的第一进程号为空值，第二进程号为SL-HARQ-15。在该SCI1中NDI＝0。Here, SCI1 may include second information, where the second information is used to indicate sendingdata 1, the first process ID included in SCI1 is a null value, and the second process ID is SL-HARQ-15. NDI=0 in this SCI1.

步骤1402：簇成员节点向簇头节点发送SCI2和数据1。Step 1402: The cluster member node sends SCI2 anddata 1 to the cluster head node.

这里的SCI2中可以包含第二信息，该第二信息用于指示接收数据1，且该SCI2中包含的第一进程号为空值，第二进程号为SL-HARQ-15。在该SCI2中NDI＝0。The SCI2 here may include second information, where the second information is used to indicate thatdata 1 is received, and the first process ID included in the SCI2 is a null value, and the second process ID is SL-HARQ-15. NDI=0 in this SCI2.

前文介绍了本申请实施例的通信的方法，下文中将介绍本申请实施例中的通信的装置。方法、装置是基于同一技术构思的，由于方法、装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。The communication method in the embodiment of the present application is described above, and the communication device in the embodiment of the present application will be described below. The method and the device are based on the same technical concept. Since the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated.

基于与上述通信方法的同一技术构思，如图15所示，提供了一种通信装置1500。通信装置1500能够上述方法中由终端设备执行的各个步骤，为了避免重复，此处不再详述。通信装置1500包括：通信单元1510、处理单元1520，可选的，还包括，存储单元1530；处理单元1520可以分别与存储单元1530和通信单元1510相连，所述存储单元1530也可以与通信单元1510相连：Based on the same technical concept as the above-mentioned communication method, as shown in FIG. 15 , a communication apparatus 1500 is provided. The communication apparatus 1500 can perform various steps performed by the terminal device in the above method, and in order to avoid repetition, details are not described here. The communication apparatus 1500 includes: acommunication unit 1510, aprocessing unit 1520, and optionally, astorage unit 1530; theprocessing unit 1520 may be connected to thestorage unit 1530 and thecommunication unit 1510, respectively, and thestorage unit 1530 may also be connected to thecommunication unit 1510 Connected:

所述存储单元1530，用于存储计算机程序；thestorage unit 1530, for storing computer programs;

示例的，所述通信单元1510，用于接收网络设备发送的第一数据，以及接收第二通信装置发送的第一指示信息。所述处理单元1520根据该第一指示信息通过所述通信单元1510发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述第二通信装置是簇 头节点，所述第一通信装置是所述第二通信装置的簇成员节点。Exemplarily, thecommunication unit 1510 is configured to receive the first data sent by the network device and receive the first indication information sent by the second communication apparatus. Theprocessing unit 1520 sends second data through thecommunication unit 1510 according to the first indication information; the second data is retransmission data of the first data; wherein, the second communication device is a cluster head node , the first communication device is a cluster member node of the second communication device.

在一种可能的实现中，所述处理单元1520可以通过所述通信单元1510发送第一指示信息。该第一指示信息用于调度簇成员节点重传网络设备所发送的数据。所述处理单元1520还可以通过所述通信单元1510接收第一通信装置发送第二数据；所述第二数据是所述网络设备所发送的数据的重传数据；其中，所述第二通信装置是簇头节点，所述第一通信装置是所述第二通信装置的簇成员节点。In a possible implementation, theprocessing unit 1520 may send the first indication information through thecommunication unit 1510 . The first indication information is used to schedule the cluster member node to retransmit the data sent by the network device. Theprocessing unit 1520 may also receive, through thecommunication unit 1510, second data sent by the first communication device; the second data is retransmission data of the data sent by the network device; wherein the second communication device is a cluster head node, and the first communication device is a cluster member node of the second communication device.

在一种可能的实现中，所述处理单元1520还可以通过所述通信单元1510接收第二指示信息。所述处理单元1520还可以根据所述第二指示信息通过所述通信单元1510接收第一通信装置发送的第二数据，其中，所述第二数据是第一数据的重传数据，第二指示信息包括所述第二数据所对应的进程号信息，所述第二数据所对应的进程号信息为下行组播进程号信息或者侧链路进程号信息；所述第三通信装置和所述第一通信装置是同一簇的簇成员节点；所述第一数据是网络设备发送的数据。In a possible implementation, theprocessing unit 1520 may also receive the second indication information through thecommunication unit 1510 . Theprocessing unit 1520 may also receive the second data sent by the first communication device through thecommunication unit 1510 according to the second indication information, where the second data is retransmission data of the first data, and the second indication The information includes process number information corresponding to the second data, and the process number information corresponding to the second data is downlink multicast process number information or side link process number information; the third communication device and the first A communication device is a cluster member node of the same cluster; the first data is data sent by a network device.

在一种可能的实现中，所述处理单元1520还可以通过所述通信单元1510接收网络设备发送的第一数据；。所述处理单元1520还可以通过所述通信单元1510向第三通信装置发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述第二通信装置是簇头节点，所述第三通信装置是所述第二通信装置的簇成员节点。In a possible implementation, theprocessing unit 1520 may also receive the first data sent by the network device through thecommunication unit 1510;. Theprocessing unit 1520 may also send second data to a third communication device through thecommunication unit 1510; the second data is retransmission data of the first data; wherein the second communication device is a cluster head node, the third communication device is a cluster member node of the second communication device.

上述通信装置还可以为芯片，其中通信单元可以为芯片的输入/输出电路或者接口，处理单元可以为逻辑电路，逻辑电路可以根据上述方法方面所描述的步骤对待处理的数据进行处理，获取处理后的数据。待处理的数据可以是输入电路/接口接收的数据，比如第二通信装置发送的第一指示信息。处理后的数据可以是根据待处理的数据得到的数据，比如根据所述第一指示信息发送的第二数据。或者，待处理的数据还可以是未正确解码网络设备发送的第一数据的指示信息，处理后的数据还可以是第二通信装置发送的第一指示信息。或者，待处理的数据还可以是接收到的第二指示信息，处理后的数据还可以是根据第二指示信息接收的第二数据。或者，待处理的数据还可以是未正确解码网络设备发送的第一数据的指示信息，处理后的数据还可以是第二通信装置发送的第二数据。输出电路/接口用于输出处理后的数据。The above-mentioned communication device may also be a chip, wherein the communication unit may be an input/output circuit or an interface of the chip, and the processing unit may be a logic circuit, and the logic circuit may process the data to be processed according to the steps described in the above method aspects, and after the acquisition and processing The data. The data to be processed may be data received by the input circuit/interface, such as the first indication information sent by the second communication device. The processed data may be data obtained according to the data to be processed, such as the second data sent according to the first indication information. Alternatively, the data to be processed may also be indication information that the first data sent by the network device is not correctly decoded, and the processed data may also be the first indication information sent by the second communication apparatus. Alternatively, the data to be processed may also be the received second indication information, and the processed data may also be the second data received according to the second indication information. Alternatively, the data to be processed may also be indication information that the first data sent by the network device is not correctly decoded, and the processed data may also be the second data sent by the second communication apparatus. The output circuit/interface is used to output the processed data.

本申请实施例还提供一种通信装置，该通信装置可以是终端设备也可以是电路。该通信装置可以用于执行上述方法实施例中由终端设备所执行的动作。An embodiment of the present application further provides a communication apparatus, where the communication apparatus may be a terminal device or a circuit. The communication apparatus may be configured to perform the actions performed by the terminal device in the foregoing method embodiments.

当通信装置为终端设备时，图16示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图16中，终端设备以手机作为例子。如图16所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。When the communication apparatus is a terminal device, FIG. 16 shows a schematic structural diagram of a simplified terminal device. For the convenience of understanding and illustration, in FIG. 16 , the terminal device takes a mobile phone as an example. As shown in FIG. 16 , the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, and process data of software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带 信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图16中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal equipment, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 16 . In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device or the like. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的通信单元，将具有处理功能的处理器视为终端设备的处理单元。如图16所示，终端设备包括通信单元1610和处理单元1620。通信单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将通信单元1610中用于实现接收功能的器件视为接收单元，将通信单元1610中用于实现发送功能的器件视为发送单元，即通信单元1610包括接收单元和发送单元。通信单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。In the embodiments of the present application, the antenna and radio frequency circuit with a transceiver function can be regarded as a communication unit of the terminal device, and the processor with a processing function can be regarded as a processing unit of the terminal device. As shown in FIG. 16 , the terminal device includes acommunication unit 1610 and aprocessing unit 1620 . A communication unit may also be referred to as a transceiver, transceiver, transceiver, or the like. The processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like. Optionally, the device for implementing the receiving function in thecommunication unit 1610 may be regarded as a receiving unit, and the device for implementing the transmitting function in thecommunication unit 1610 may be regarded as a transmitting unit, that is, thecommunication unit 1610 includes a receiving unit and a transmitting unit. A communication unit may also sometimes be referred to as a transceiver, transceiver, or transceiver circuit, or the like. The receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

应理解，通信单元1610用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元1620用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。It should be understood that thecommunication unit 1610 is configured to perform the sending and receiving operations on the terminal device side in the above method embodiments, and theprocessing unit 1620 is configured to perform other operations on the terminal device in the above method embodiments except for sending and receiving operations.

例如，在一种实现方式中，通信单元1610用于执行图3中的步骤301中终端设备侧的接收操作，和/或通信单元1610还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1620，用于执行本申请实施例中终端设备侧的其他处理步骤。For example, in an implementation manner, thecommunication unit 1610 is configured to perform the receiving operation on the terminal device side in step 301 in FIG. 3 , and/or thecommunication unit 1610 is further configured to perform other transceivers on the terminal device side in the embodiments of the present application step. Theprocessing unit 1620 is configured to execute other processing steps on the terminal device side in the embodiments of the present application.

当该终端设备为芯片类的装置或者电路时，该装置可以包括通信单元和处理单元。其中，所述通信单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。When the terminal device is a chip-type device or circuit, the device may include a communication unit and a processing unit. Wherein, the communication unit may be an input/output circuit and/or a communication interface; the processing unit is an integrated processor, a microprocessor or an integrated circuit.

如图17所示为本申请实施例提供的通信装置1700，用于实现上述方法中终端设备、网络设备的功能。该通信装置可以是终端设备、网络设备，也可以是终端设备、网络设备的装置，或者是能够和终端设备、网络设备匹配使用的装置。As shown in FIG. 17 , acommunication apparatus 1700 provided by an embodiment of the present application is used to implement the functions of a terminal device and a network device in the foregoing method. The communication device may be a terminal device, a network device, or a device of the terminal device or the network device, or a device that can be used in combination with the terminal device or the network device.

通信装置1700包括至少一个处理器1720，用于实现本申请实施例提供的方法中终端设备、网络设备的功能。通信装置1700还可以包括通信接口1710。在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，用于通过传输介质和其它设备进行通信。例如，通信接口1710用于通信装置1700中的装置可以和其它设备进行通信。该通信装置1700是终端设备时，所述处理器1720可以完成如图15所示的处理单元1520的功能，所述通信接口1710可以完成如图15所示的通信单元1510的功能。Thecommunication apparatus 1700 includes at least oneprocessor 1720, configured to implement the functions of the terminal device and the network device in the method provided in the embodiment of the present application.Communication device 1700 may also includecommunication interface 1710 . In this embodiment of the present application, the communication interface may be a transceiver, a circuit, a bus, a module or other types of communication interfaces, which are used to communicate with other devices through a transmission medium. For example, thecommunication interface 1710 is used for the apparatus in thecommunication apparatus 1700 to communicate with other devices. When thecommunication apparatus 1700 is a terminal device, theprocessor 1720 can complete the function of theprocessing unit 1520 shown in FIG. 15 , and thecommunication interface 1710 can complete the function of thecommunication unit 1510 shown in FIG. 15 .

通信装置1700还可以包括至少一个存储器1730，用于存储程序指令和/或数据。存储器1730和处理器1720耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1720可能和存储器1730协同操作。处理器1720可能执行存储器1730中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。Communication apparatus 1700 may also include at least onememory 1730 for storing program instructions and/or data.Memory 1730 andprocessor 1720 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. Theprocessor 1720 may cooperate with thememory 1730.Processor 1720 may execute program instructions stored inmemory 1730 . At least one of the at least one memory may be included in the processor.

本申请实施例中不限定上述通信接口1710、处理器1720以及存储器1730之间的具体连接介质。本申请实施例在图17中以存储器1730、处理器1720以及通信接口1710之间通过总线1740连接，总线在图17中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图17中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。The specific connection medium between thecommunication interface 1710 , theprocessor 1720 , and thememory 1730 is not limited in the embodiments of the present application. In the embodiment of the present application, thememory 1730, theprocessor 1720, and thecommunication interface 1710 are connected through abus 1740 in FIG. 17. The bus is represented by a thick line in FIG. 17, and the connection between other components is only for schematic illustration. , is not limited. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 17, but it does not mean that there is only one bus or one type of bus.

作为本实施例的另一种形式，提供一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中终端设备侧或者网络设备侧的方法。As another form of this embodiment, a computer-readable storage medium is provided, on which an instruction is stored, and when the instruction is executed, the method on the terminal device side or the network device side in the above method embodiments is performed.

作为本实施例的另一种形式，提供一种包含指令的计算机程序产品，该指令被执行时执行上述方法实施例中终端设备侧或者网络设备侧的方法。As another form of this embodiment, a computer program product including an instruction is provided, and when the instruction is executed, the method on the terminal device side or the network device side in the above method embodiments is executed.

作为本实施例的另一种形式，提供一种通信系统，该系统可以包括上述至少一个终端设备和上述至少一个网络设备。As another form of this embodiment, a communication system is provided, and the system may include the above-mentioned at least one terminal device and the above-mentioned at least one network device.

应理解，本发明实施例中提及的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。It should be understood that the processor mentioned in the embodiments of the present invention may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application-specific integrated circuits ( Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

还应理解，本发明实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。It should also be understood that the memory mentioned in the embodiments of the present invention may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM).

需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) is integrated in the processor.

应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present invention. implementation constitutes any limitation.

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

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, 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，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间 接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus 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 may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

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

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, 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。The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to 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 disk and other media that can store program codes .

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (35)

Translated fromChinese

一种通信方法，其特征在于，包括：A communication method, comprising:第一通信装置接收网络设备发送的第一数据；The first communication apparatus receives the first data sent by the network device;所述第一通信装置接收第二通信装置发送的第一指示信息；The first communication device receives the first indication information sent by the second communication device;所述第一通信装置根据所述第一指示信息发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述第二通信装置是簇头节点，所述第一通信装置是所述第二通信装置的簇成员节点。The first communication device sends second data according to the first indication information; the second data is retransmission data of the first data; wherein, the second communication device is a cluster head node, the first A communication device is a cluster member node of the second communication device.根据权利要求1所述的方法，其特征在于，所述第一指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。The method according to claim 1, wherein the first indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is the network device The process ID used to send the first data.根据权利要求1所述的方法，其特征在于，所述第一指示信息包括第二进程号和第三进程号，所述第二进程号用于指示所述第一通信装置发送所述第二数据所使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。The method according to claim 1, wherein the first indication information includes a second process number and a third process number, and the second process number is used to instruct the first communication device to send the second process number. The process number used by the data, and the third process number indicates the process number used by the network device to send the first data.根据权利要求1-3任一所述的方法，其特征在于，所述第一指示信息包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。The method according to any one of claims 1-3, wherein the first indication information comprises first information, and the first information is used to indicate whether the first data and the second data can be combined take over.根据权利要求1-4任一所述的方法，其特征在于，所述第一指示信息还包括第二信息；所述第二信息用于指示所述第一通信装置发送所述第二数据。The method according to any one of claims 1-4, wherein the first indication information further includes second information; the second information is used to instruct the first communication device to send the second data.根据权利要求1-5任一所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-5, wherein the method further comprises:在所述第一通信装置接收所述第二通信装置发送的第一指示信息之前，所述第一通信装置发送第三指示信息；所述第三指示信息用于指示所述第一通信装置正确解码所述网络设备发送的所述第一数据。Before the first communication apparatus receives the first indication information sent by the second communication apparatus, the first communication apparatus sends third indication information; the third indication information is used to indicate that the first communication apparatus is correct Decode the first data sent by the network device.根据权利要求1-6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 1-6, wherein the method further comprises:所述第一通信装置发送第二指示信息，其中，所述第二指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号；The first communication device sends second indication information, wherein the second indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is the network the process number used by the device to send the first data;或者，所述第二指示信息包括第一进程号和第二进程号，其中，所述第一进程号为第一通信装置发送所述第二数据时使用的进程号，所述第三进程号为所述网络设备发送所述第一数据所使用的进程号。Or, the second indication information includes a first process number and a second process number, wherein the first process number is the process number used when the first communication device sends the second data, and the third process number The process number used by the network device to send the first data.一种通信方法，其特征在于，包括：A communication method, comprising:第二通信装置发送第一指示信息，所述第一指示信息用于调度簇成员节点重传网络设备所发送的数据；The second communication device sends first indication information, where the first indication information is used to schedule the cluster member node to retransmit the data sent by the network device;所述第二通信装置接收第一通信装置发送第二数据；所述第二数据是所述网络设备所发送的数据的重传数据；其中，所述第二通信装置是簇头节点，所述第一通信装置是所述第二通信装置的簇成员节点。The second communication device receives second data sent by the first communication device; the second data is retransmission data of the data sent by the network device; wherein the second communication device is a cluster head node, and the The first communication device is a cluster member node of the second communication device.根据权利要求8所述的方法，其特征在于，所述第一指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。The method according to claim 8, wherein the first indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is the network device The process ID used to send the first data.根据权利要求8所述的方法，其特征在于，所述第一指示信息包括第二进程号和 第三进程号，所述第二进程号用于指示所述第一通信装置发送所述第二数据时使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。The method according to claim 8, wherein the first indication information includes a second process number and a third process number, and the second process number is used to instruct the first communication device to send the second process number. The process ID used for data, and the third process ID indicates the process ID used by the network device to send the first data.根据权利要求8-10任一所述的方法，其特征在于，所述第一指示信息包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。The method according to any one of claims 8-10, wherein the first indication information comprises first information, and the first information is used to indicate whether the first data and the second data can be combined take over.根据权利要求8-11任一所述的方法，其特征在于，所述第一指示信息包括第二信息；所述第二信息用于指示所述第一通信装置发送所述第二数据。The method according to any one of claims 8-11, wherein the first indication information includes second information; the second information is used to instruct the first communication device to send the second data.根据权利要求8-12任一所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 8-12, wherein the method further comprises:在所述第二通信装置向所述第一通信装置发送第一指示信息之前，所述第二通信装置接收第三指示信息；所述第三指示信息用于指示所述第一通信装置正确解码所述网络设备发送的所述第一数据。Before the second communication apparatus sends the first indication information to the first communication apparatus, the second communication apparatus receives third indication information; the third indication information is used to instruct the first communication apparatus to decode correctly the first data sent by the network device.根据权利要求8-13任一所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 8-13, wherein the method further comprises:所述第二通信装置发送第五指示信息，所述第五指示信息用于指示所述第二通信装置和/或所述第二通信装置的簇成员节点未正确解码所述网络设备发送的数据。The second communication apparatus sends fifth indication information, where the fifth indication information is used to indicate that the second communication apparatus and/or a cluster member node of the second communication apparatus does not correctly decode the data sent by the network device .根据权利要求8-14任一所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 8-14, wherein the method further comprises:所述第二通信装置接收第二指示信息，其中，所述第二指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号；The second communication device receives second indication information, wherein the second indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is the network the process number used by the device to send the first data;或者，所述第二指示信息包括第一进程号和第二进程号，其中，所述第一进程号为第一通信装置发送所述第二数据时使用的进程号，所述第三进程号为所述网络设备发送所述第一数据所使用的进程号。Or, the second indication information includes a first process number and a second process number, wherein the first process number is the process number used when the first communication device sends the second data, and the third process number The process number used by the network device to send the first data.一种通信方法，其特征在于，包括：A communication method, comprising:第三通信装置接收第二指示信息；The third communication device receives the second indication information;所述第三通信装置根据所述第二指示信息接收第一通信装置发送的第二数据，其中，所述第二数据是第一数据的重传数据，第二指示信息包括所述第二数据所对应的进程号信息，所述第二数据所对应的进程号信息为下行组播进程号信息或者侧链路进程号信息；所述第三通信装置和所述第一通信装置是同一簇的簇成员节点；所述第一数据是网络设备发送的数据。The third communication device receives the second data sent by the first communication device according to the second indication information, wherein the second data is retransmission data of the first data, and the second indication information includes the second data Corresponding process number information, the process number information corresponding to the second data is downlink multicast process number information or side link process number information; the third communication device and the first communication device belong to the same cluster A cluster member node; the first data is data sent by a network device.根据权利要求16所述的方法，其特征在于，所述方法还包括：The method of claim 16, wherein the method further comprises:所述第三通信装置接收第一指示信息；所述第一指示信息包括所述第一通信装置的标识。The third communication device receives first indication information; the first indication information includes an identifier of the first communication device.根据权利要求16或17所述的方法，其特征在于，所述方法还包括：The method according to claim 16 or 17, wherein the method further comprises:所述第三通信装置发送第六指示信息；所述第六指示信息用于指示所述第三通信装置未正确解码所述第一数据。The third communication device sends sixth indication information; the sixth indication information is used to indicate that the third communication device does not correctly decode the first data.根据权利要求16-18任一所述的方法，其特征在于，所述第二指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。The method according to any one of claims 16-18, wherein the second indication information includes a first process number and process number meaning indication information, and the process number meaning indication information indicates that the first process number is The process number used by the network device to send the first data.根据权利要求16-18任一所述的方法，其特征在于，所述第二指示信息包括第二进程号和第三进程号，所述第二进程号用于指示所述第一通信装置发送所述第二数据所使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。The method according to any one of claims 16-18, wherein the second indication information includes a second process number and a third process number, and the second process number is used to instruct the first communication device to send The process number used by the second data, and the third process number indicates the process number used by the network device to send the first data.根据权利要求16-20任一所述的方法，其特征在于，所述第二指示信息包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。The method according to any one of claims 16-20, wherein the second indication information comprises first information, and the first information is used to indicate whether the first data and the second data can be combined take over.根据权利要求16-21任一所述的方法，其特征在于，所述第二指示信息包括第二信息；所述第二信息用于指示所述第三通信装置接收所述第二数据。The method according to any one of claims 16-21, wherein the second indication information comprises second information; the second information is used to instruct the third communication device to receive the second data.一种通信方法，其特征在于，包括：A communication method, comprising:第二通信装置接收网络设备发送的第一数据；The second communication device receives the first data sent by the network device;所述第二通信装置向第三通信装置发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述第二通信装置是簇头节点，所述第三通信装置是所述第二通信装置的簇成员节点。The second communication device sends second data to a third communication device; the second data is retransmission data of the first data; wherein, the second communication device is a cluster head node, and the third communication device The device is a cluster member node of the second communication device.根据权利要求23所述的方法，其特征在于，所述方法还包括：The method of claim 23, wherein the method further comprises:在所述第二通信装置向所述第三通信装置发送第二数据之前，所述第二通信装置发送第二指示信息；所述第二指示信息包括所述第二数据所对应的进程号信息，所述第二数据所对应的进程号信息为下行组播进程号信息或者侧链路进程号信息。Before the second communication device sends the second data to the third communication device, the second communication device sends second indication information; the second indication information includes process number information corresponding to the second data , the process number information corresponding to the second data is downlink multicast process number information or side link process number information.根据权利要求24所述的方法，其特征在于，所述第二指示信息包括第一进程号和进程号含义指示信息，所述进程号含义指示信息指示所述第一进程号为所述网络设备发送所述第一数据所使用的进程号。The method according to claim 24, wherein the second indication information comprises a first process number and process number meaning indication information, wherein the process number meaning indication information indicates that the first process number is the network device The process ID used to send the first data.根据权利要求24所述的方法，其特征在于，所述第二指示信息包括第二进程号和第三进程号，所述第二进程号用于指示所述第二通信装置发送所述第二数据所使用的进程号，所述第三进程号指示所述网络设备发送所述第一数据所使用的进程号。The method according to claim 24, wherein the second indication information comprises a second process number and a third process number, and the second process number is used to instruct the second communication device to send the second process number. The process number used by the data, and the third process number indicates the process number used by the network device to send the first data.根据权利要求23-26任一所述的方法，其特征在于，所述第二指示信息包括第一信息，所述第一信息用于指示所述第一数据和所述第二数据是否可以合并接收。The method according to any one of claims 23-26, wherein the second indication information comprises first information, and the first information is used to indicate whether the first data and the second data can be combined take over.根据权利要求23-27任一所述的方法，其特征在于，所述第二指示信息包括第二信息；所述第二信息用于指示所述第三通信装置接收所述第二数据。The method according to any one of claims 23-27, wherein the second indication information comprises second information; the second information is used to instruct the third communication device to receive the second data.根据权利要求23-28任一所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 23-28, wherein the method further comprises:在所述第二通信装置向所述第三通信装置发送第二数据之前，所述第二通信装置接收所述第三通信装置发送的第六指示信息；所述第六指示信息用于指示所述第三通信装置未正确解码所第一数据。Before the second communication device sends the second data to the third communication device, the second communication device receives sixth indication information sent by the third communication device; the sixth indication information is used to indicate the The third communication device does not correctly decode the first data.一种通信装置，其特征在于，包括：A communication device, comprising:处理单元，用于通过通信单元接收网络设备发送的第一数据；以及，接收第二通信装置发送的第一指示信息；并根据所述第一指示信息发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述第二通信装置是簇头节点，所述通信装置是所述第二通信装置的簇成员节点。a processing unit, configured to receive the first data sent by the network device through the communication unit; and, receive the first indication information sent by the second communication device; and send the second data according to the first indication information; the second data is Retransmission data of the first data; wherein the second communication device is a cluster head node, and the communication device is a cluster member node of the second communication device.一种通信装置，其特征在于，包括：A communication device, comprising:处理单元，用于通过通信单元发送第一指示信息，所述第一指示信息用于调度簇成员节点重传网络设备所发送的数据；并接收第一通信装置发送第二数据；所述第二数据是所述网络设备所发送的数据的重传数据；其中，所述通信装置是簇头节点，所述第一通信装置是所述通信装置的簇成员节点。a processing unit, configured to send first indication information through the communication unit, where the first indication information is used to schedule the cluster member node to retransmit the data sent by the network device; and receive the second data sent by the first communication device; the second The data is retransmission data of the data sent by the network device; wherein, the communication device is a cluster head node, and the first communication device is a cluster member node of the communication device.一种通信装置，其特征在于，包括：A communication device, comprising:处理单元，用于通过通信单元接收第二指示信息；并根据所述第二指示信息通过所述通信单元接收第一通信装置发送的第二数据，其中，所述第二数据是第一数据的重传数据，第二指示信息包括所述第二数据所对应的进程号信息，所述第二数据所对应的进程号信息为下行组播进程号信息或者侧链路进程号信息；所述通信装置和所述第一通信装置是同一簇的簇成员节点；所述第一数据是网络设备发送的数据。a processing unit, configured to receive the second indication information through the communication unit; and receive the second data sent by the first communication device through the communication unit according to the second indication information, wherein the second data is of the first data Retransmit the data, the second indication information includes process number information corresponding to the second data, and the process number information corresponding to the second data is downlink multicast process number information or side link process number information; the communication The device and the first communication device are cluster member nodes of the same cluster; the first data is data sent by a network device.一种通信装置，其特征在于，包括：A communication device, comprising:处理单元，用于通过通信单元接收网络设备发送的第一数据；并通过所述通信单元向第三通信装置发送第二数据；所述第二数据是所述第一数据的重传数据；其中，所述通信装置是簇头节点，所述第五通信装置是所述通信装置的簇成员节点。a processing unit, configured to receive first data sent by a network device through a communication unit; and send second data to a third communication device through the communication unit; the second data is retransmission data of the first data; wherein , the communication device is a cluster head node, and the fifth communication device is a cluster member node of the communication device.一种电子设备，其特征在于，所述装置包括处理器和存储器，An electronic device, characterized in that the device comprises a processor and a memory,所述存储器，用于存储计算机程序或指令；the memory for storing computer programs or instructions;所述处理器，用于执行存储器中的计算机程序或指令，使得权利要求1-29中任一项所述的方法被执行。The processor for executing a computer program or instructions in a memory such that the method of any one of claims 1-29 is performed.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存储有计算机可执行指令，所述计算机可执行指令在被计算机调用时，使所述计算机执行如权利要求1-29任一项所述的方法。A computer-readable storage medium, characterized in that, the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are invoked by a computer, the computer is caused to execute any one of claims 1-29. one of the methods described.

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