WO2021037014A1

WO2021037014A1 - Data transmission method and apparatus

Info

Publication number: WO2021037014A1
Application number: PCT/CN2020/111001
Authority: WO
Inventors: 李添泽; 张鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-30
Filing date: 2020-08-25
Publication date: 2021-03-04
Anticipated expiration: 2022-02-28
Also published as: CN112449416A

Abstract

Disclosed in the embodiments of the present application are a data transmission method and apparatus, which are used for ensuring time synchronization of an uplink receiving side when data is transmitted between a CUE, an SUE and a base station in a UC scenario. Said method of the embodiments of the present application comprises: in a data transmission process, a CUE acquiring its own uplink timing information or acquiring uplink timing information of an SUE; then the CUE monitoring, according to the uplink timing information, uplink data sent by the SUE to a wireless access network device; finally, after obtaining the uplink data, the CUE forwarding the uplink data to the wireless access network device according to its own uplink timing information or the uplink timing information of the SUE.

Description

Data transmission method and device

本申请要求于2019年08月30日提交中国专利局、申请号为201910818452.3、发明名称为“一种数据传输方法以及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 30, 2019, the application number is 201910818452.3, and the invention title is "a data transmission method and device", the entire content of which is incorporated into this application by reference .

Technical field

本申请涉及通信领域，尤其涉及一种数据传输方法以及装置。This application relates to the field of communications, and in particular to a data transmission method and device.

Background technique

无线通信技术在过去几十年经历了飞速的发展，先后经历了基于模拟通信系统的第一代无线通信系统，以全球移动通信系统(Global System for Mobile Communication，GSM)为代表的2G无线通信系统，以宽带码分多址(Wideband Code Division Multiple Access，WCDMA)为代表的3G无线通信系统，再到现在已经在全世界广泛商用并且取得巨大成功的长期演进(Long Term Evolution，LTE)4G无线通信系统。无线通信系统支持的业务也从最初的语音、短信，发展到现在支持无线高速数据通信。与此同时，全世界范围内的无线连接数量正在经历持续地高速增长，各种新的无线业务类型也大量涌现，例如物联网、自动驾驶等，这些都对下一代无线通信系统，提出了更高的要求。Wireless communication technology has experienced rapid development in the past few decades. It has successively experienced the first generation of wireless communication systems based on analog communication systems, and 2G wireless communication systems represented by the Global System for Mobile Communication (GSM) , 3G wireless communication system represented by Wideband Code Division Multiple Access (WCDMA), and now it has been widely commercialized all over the world and has achieved great success in Long Term Evolution (LTE) 4G wireless communication system. The business supported by the wireless communication system has evolved from the initial voice and short message to now support wireless high-speed data communication. At the same time, the number of wireless connections around the world is experiencing continuous rapid growth, and various new wireless service types are also emerging in large numbers, such as the Internet of Things, autonomous driving, etc., all of which have made improvements to the next generation of wireless communication systems. High demands.

用户设备协作(UE Cooperation，UC)是下一代通信系统主要支持的特性之一，其可以显著提高系统的容量以及网络的覆盖范围，同时可以降低基站端的负载，典型的上行用户协作场景如图1所示。具体地，基于用户协作的上行传输主要由两个阶段：第一阶段源用户设备(Source User Equipment，SUE)发送数据给协作用户设备(Cooperative User Equipment，CUE)，即图1中的CUE1和CUE2；第二阶段CUE1和CUE2将正确接收到的信号转发给基站(可以有不同的转发方式，例如放大转发、解码转发、压缩转发等)。这样SUE在CUE1和CUE2的帮助下实现数据可靠传输，从而提升上行覆盖和系统传输效率。User Equipment Cooperation (UC) is one of the main features supported by the next-generation communication system. It can significantly increase the capacity of the system and the coverage of the network, while reducing the load on the base station. A typical uplink user collaboration scenario is shown in Figure 1. Shown. Specifically, the uplink transmission based on user cooperation mainly consists of two stages: the first stage is that the source user equipment (Source User Equipment, SUE) sends data to the cooperative user equipment (Cooperative User Equipment, CUE), namely CUE1 and CUE2 in Figure 1. ; In the second stage, CUE1 and CUE2 forward the correctly received signal to the base station (there can be different forwarding methods, such as amplifying forwarding, decoding forwarding, compression forwarding, etc.). In this way, the SUE realizes reliable data transmission with the help of CUE1 and CUE2, thereby improving uplink coverage and system transmission efficiency.

而为了保证上行接收侧(基站侧)的时间同步，提出了上行定时提前(Timing Advance，TA)的机制。UE接收到基站下行子帧的起始时间成为下行定时，UE传输上行子帧的起始时间称为上行定时。在UE侧看来，timing advance本质上是接收到下行子帧的起始时间与传输上行子帧的时间之间的一个时间偏移。基站通过适当地控制每个UE的偏移，可以控制来自不同UE的上行信号到达基站的时间。对于离基站较远的UE，由于有较大的传输延迟，就要比离基站较近的UE提前发送上行数据。而目前的UC场景中CUE、SUE与上行接收侧之间的同步问题暂时还未有解决方案。In order to ensure time synchronization on the uplink receiving side (base station side), an uplink timing advance (TA) mechanism is proposed. The start time when the UE receives the downlink subframe of the base station becomes the downlink timing, and the start time when the UE transmits the uplink subframe is called the uplink timing. From the perspective of the UE, the timing advance is essentially a time offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe. The base station can control the time at which uplink signals from different UEs arrive at the base station by appropriately controlling the offset of each UE. For UEs that are far away from the base station, due to greater transmission delay, it is necessary to send uplink data earlier than UEs that are closer to the base station. However, there is no solution for the synchronization problem between the CUE, SUE and the uplink receiving side in the current UC scene.

发明内容Summary of the invention

本申请实施例提供了一种数据传输方法及装置，用于实现UC场景下CUE、SUE与基站之间进行数据传输时保证上行接收侧的时间同步。The embodiments of the present application provide a data transmission method and device, which are used to ensure time synchronization on the uplink receiving side during data transmission between the CUE, SUE and the base station in the UC scenario.

第一方面，本申请实施例提供一种数据传输方法，具体包括：在该UC场景下，该CUE与该SUE作为一个协作用户组；在数据传输的过程中，该CUE获取自身的上行定时信息或者获取该SUE的上行定时信息；然后该CUE根据该上行定时信息侦听该SUE发送给无线接入网设备的上行数据；最后该CUE在获取到该上行数据之后将该上行数据按照该自身的上行定时信息或该SUE的上行定时信息转发给该无线接入网设备。In the first aspect, the embodiments of the present application provide a data transmission method, which specifically includes: in the UC scenario, the CUE and the SUE serve as a cooperative user group; in the process of data transmission, the CUE obtains its own uplink timing information Or obtain the uplink timing information of the SUE; then, according to the uplink timing information, the CUE listens to the uplink data sent by the SUE to the radio access network device; finally, after the CUE obtains the uplink data, the uplink data is based on its own The uplink timing information or the uplink timing information of the SUE is forwarded to the radio access network device.

本实施例中，该CUE在获取到该上行定时信息之后再对该SUE的上行数据进行侦听并转发给无线接入网设备，这样可以有效保证该CUE与该SUE发送的上行数据可以一定时间同步，防止无线接入网设备的接收该SUE的上行数据时出现混乱。In this embodiment, after the CUE obtains the uplink timing information, the uplink data of the SUE is intercepted and forwarded to the radio access network device. This can effectively ensure that the uplink data sent by the CUE and the SUE can be transmitted for a certain period of time. Synchronization prevents confusion when the radio access network device receives the uplink data of the SUE.

可选的，该CUE根据上行定时信息侦听该SUE的上行数据具体可以采用如下几种可能方式：Optionally, the CUE may specifically use the following possible methods to listen to the uplink data of the SUE according to the uplink timing information:

一种可能实现方式中，该CUE根据上行定时信息在每个传输时隙里都侦听该SUE的上行数据。In a possible implementation manner, the CUE listens to the uplink data of the SUE in each transmission time slot according to the uplink timing information.

另一种可能实现方式中，该CUE将自身的上行定时信息指示的时长减半得到目标上行定时信息，然后该CUE根据该目标上行定时信息在每传输时隙侦听该SUE的上行数据。In another possible implementation manner, the CUE halves the duration indicated by its own uplink timing information to obtain the target uplink timing information, and then the CUE listens to the SUE's uplink data in every transmission time slot according to the target uplink timing information.

另一种可能实现方式中，该CUE接收该无线接入网设备发送的下行控制信息，该下行控制信息用于指示该CUE侦听该SUE的上行数据时的第一指定时隙；然后该CUE按照自身的上行定时信息在该第一指定时隙内侦听该SUE的上行数据。In another possible implementation manner, the CUE receives the downlink control information sent by the radio access network device, and the downlink control information is used to indicate the first designated time slot when the CUE listens to the uplink data of the SUE; then the CUE Listen to the uplink data of the SUE in the first designated time slot according to its own uplink timing information.

另一种可能实现方式中，该CUE将自身的上行定时信息指示的时长减半得到目标上行定时信息；然后该CUE接收该无线接入网设备发送的下行控制信息，该下行控制信息用于指示该CUE侦听该SUE的上行数据时的目标指定时隙；然后该CUE按照该目标上行定时信息在该目标指定时隙内侦听该SUE的上行数据。In another possible implementation manner, the CUE halves the duration indicated by its own uplink timing information to obtain the target uplink timing information; then the CUE receives the downlink control information sent by the radio access network device, and the downlink control information is used to indicate The target designated time slot when the CUE listens to the uplink data of the SUE; then the CUE listens to the uplink data of the SUE in the target designated time slot according to the target uplink timing information.

另一种可能实现方式中，该CUE接收该SUE发送的侧行控制信息，该侧行控制信息用于指示该CUE侦听上行数据时的第二指定时隙；然后，该CUE按照该上行定时信息在该第二指定时隙侦听该SUE的上行数据。In another possible implementation manner, the CUE receives the side-line control information sent by the SUE, and the side-line control information is used to indicate the second designated time slot when the CUE listens to uplink data; then, the CUE follows the uplink timing The information listens to the uplink data of the SUE in the second designated time slot.

另一种可能实现方式中，该CUE将自身的上行定时信息指示的时长减半得到目标上行定时信息；然后该CUE接收该SUE发送的侧行控制信息，该侧行控制信息用于指示该CUE侦听上行数据时的目标指定时隙；然后，该CUE按照该目标上行定时信息在该目标指定时隙侦听该SUE的上行数据。In another possible implementation, the CUE halves the duration indicated by its own uplink timing information to obtain the target uplink timing information; then the CUE receives the side control information sent by the SUE, and the side control information is used to indicate the CUE The target designated time slot when listening to uplink data; then, the CUE listens to the SUE's uplink data in the target designated time slot according to the target uplink timing information.

可选的，在该CUE没有获取到自身的上行定时信息时，该CUE还可以获取该SUE的上行定时信息，具体方式可以如下：Optionally, when the CUE does not obtain its own uplink timing information, the CUE may also obtain the uplink timing information of the SUE. The specific method may be as follows:

一种可能实现方式中，该CUE接收该无线接入网设备发送的下行控制信息，该下行控制信息携带该SUE的上行定时信息。In a possible implementation manner, the CUE receives downlink control information sent by the radio access network device, and the downlink control information carries uplink timing information of the SUE.

另一种可能实现方式中，该CUE接收该SUE发送的侧行控制信息，该侧行控制信息携带该SUE的上行定时信息。In another possible implementation manner, the CUE receives the side-line control information sent by the SUE, and the side-line control information carries the uplink timing information of the SUE.

另一种可能实现方式中，该CUE接收该SUE发送的无线资源控制信息，该无线资源控制信息携带该SUE的上行定时信息。In another possible implementation manner, the CUE receives radio resource control information sent by the SUE, and the radio resource control information carries uplink timing information of the SUE.

基于上述方案，在该SUE向该CUE发送侧行控制信息或者无线资源控制信息时，该SUE可以采用如下几种方式：Based on the above solution, when the SUE sends side control information or radio resource control information to the CUE, the SUE may adopt the following methods:

一种可能实现方式中，该SUE会周期性的向该CUE发送该侧行控制信息或者或无线资源控制信息。其中，该周期时长由SUE与CUE之间协议规定。In a possible implementation manner, the SUE periodically sends the side control information or radio resource control information to the CUE. Among them, the period of time is stipulated by the agreement between SUE and CUE.

另一种可能实现方式中，该SUE会在发送了上行调度请求之后向该CUE发送该侧行控制信息或者或无线资源控制信息。具体来说，该SUE可以是在发送了上行调度请求之后的下一个传输时隙里向该CUE发送该侧行控制信息或者或无线资源控制信息。In another possible implementation manner, the SUE will send the side control information or radio resource control information to the CUE after sending the uplink scheduling request. Specifically, the SUE may send the side control information or radio resource control information to the CUE in the next transmission time slot after sending the uplink scheduling request.

可选的，在该CUE与该SUE协作传输的场景下，该无线接入网设备可以为该CUE和该SUE分配独立资源池进行数据传输，其中，该独立资源池用于该CUE与该SUE进行协作数据传输。这样该无线接入网设备可以根据系统级的资源池配置该CUE与该SUE，从而减少配置信令的开销。Optionally, in a scenario where the CUE and the SUE cooperate in transmission, the radio access network device may allocate an independent resource pool for the CUE and the SUE for data transmission, where the independent resource pool is used for the CUE and the SUE Perform collaborative data transmission. In this way, the radio access network device can configure the CUE and the SUE according to the system-level resource pool, thereby reducing the overhead of configuration signaling.

可选的，该CUE还可以获取该SUE的上行资源，然后再根据该上行资源和该上行定时信息侦听该SUE的上行数据。本实施例中，该CUE可以同时获取到该SUE的上行资源、该SUE的上行定时信息以及自身的上行定时信息，在该CUE侦听该SUE的上行数据时，可以自行选择最优的方案进行侦听，具体的情况此处不做限定。Optionally, the CUE may also obtain the uplink resource of the SUE, and then listen to the uplink data of the SUE according to the uplink resource and the uplink timing information. In this embodiment, the CUE can obtain the uplink resources of the SUE, the uplink timing information of the SUE, and its own uplink timing information at the same time. When the CUE listens to the uplink data of the SUE, it can choose the best solution by itself. Interception, the specific situation is not limited here.

在该CUE获取该SUE的上行资源时，具体可以包括如下几种方式：When the CUE obtains the uplink resources of the SUE, it may specifically include the following methods:

一种可能实现方式中，所述CUE接收所述无线接入网设备发送的调度信息，所述调度信息用于指示所述SUE的上行资源；所述CUE根据所述调度信息获取所述SUE的上行资源。这样在该无线接入网设备通过调度信息调度该SUE发送上行数据时，同时将该调度信息发送给该CUE，从而使得该CUE可以明确该SUE的上行资源，确保CUE的侦听效果。In a possible implementation manner, the CUE receives scheduling information sent by the radio access network device, and the scheduling information is used to indicate the uplink resources of the SUE; the CUE obtains the SUE information according to the scheduling information. Uplink resources. In this way, when the radio access network device schedules the SUE to send uplink data through the scheduling information, the scheduling information is simultaneously sent to the CUE, so that the CUE can determine the uplink resources of the SUE and ensure the CUE's listening effect.

另一种可能实现方式中，所述CUE接收所述无线接入网设备发送的指示信息，所述指示信息用于指示所述SUE在时频资源图案(time frequency resource pattern，TFRP)内的资源块位置。在该SUE的上行资源是按照TFRP进行配置时，该无线接入网设备将该SUE在TFRP内的资源块位置通知给该CUE时，可以精确的控制CUE的侦听窗口，从而使得该CUE在接收SUE的上行数据时达到节能的效果。In another possible implementation manner, the CUE receives indication information sent by the radio access network device, where the indication information is used to indicate the resources of the SUE in a time frequency resource pattern (TFRP) Block location. When the uplink resources of the SUE are configured in accordance with TFRP, when the radio access network device notifies the CUE of the resource block location of the SUE in the TFRP, it can precisely control the listening window of the CUE so that the CUE is in It achieves energy saving effect when receiving uplink data of SUE.

第二方面，本申请实施例提供一种终端设备，该装置具有实现上述第一方面中终端设备行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。In a second aspect, an embodiment of the present application provides a terminal device, and the device has a function of realizing the behavior of the terminal device in the foregoing first aspect. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

在一个可能的实现方式中，该装置包括用于执行以上第一方面各个步骤的单元或模块。例如，该装置包括：获取模块，用于获取上行定时信息，所述上行定时信息为所述CUE自身的上行定时信息或所述上行定时信息为源用户设备SUE的上行定时信息；侦听模块，用于根据所述上行定时信息侦听所述SUE的上行数据；发送模块，用于将所述上行数据发送给无线接入网设备。In a possible implementation manner, the device includes a unit or module for executing each step of the first aspect above. For example, the device includes: an acquisition module for acquiring uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information is the uplink timing information of the source user equipment SUE; a listening module, It is used to listen to the uplink data of the SUE according to the uplink timing information; the sending module is used to send the uplink data to the radio access network device.

可选的，还包括存储模块，用于保存终端设备必要的程序指令和数据。Optionally, it also includes a storage module for storing necessary program instructions and data for the terminal device.

在一种可能的实现方式中，该装置包括：处理器和收发器，所述处理器被配置为支持终端设备执行上述第一方面提供的方法中相应的功能。收发器用于指示终端设备与终端设备、以及终端设备与无线接入网设备之间的通信，向终端设备或者无线接入网设备发送上述方法中所涉及的相对应的信息或指令。可选的，此装置还可以包括存储器，所述存储器用于与处理器耦合，其保存终端设备必要的程序指令和数据。In a possible implementation manner, the device includes a processor and a transceiver, and the processor is configured to support the terminal device to perform the corresponding function in the method provided in the above-mentioned first aspect. The transceiver is used to instruct the communication between the terminal device and the terminal device, and between the terminal device and the wireless access network device, and send the corresponding information or instructions involved in the above method to the terminal device or the wireless access network device. Optionally, the device may further include a memory, which is used for coupling with the processor and stores necessary program instructions and data for the terminal device.

在一种可能的实现方式中，当该装置为终端设备内的芯片时，该芯片包括：处理模块和收发模块，所述处理模块例如可以是处理器，此处理器用于根据所述上行定时信息侦听所述SUE的上行数据；所述收发模块例如可以是该芯片上的输入/输出接口、管脚或电路等，将上行数据传送给与此芯片耦合的其他芯片或模块中。该处理模块可执行存储单元存储的计算机执行指令，以支持终端设备执行上述第一方面提供的方法。可选地，所述存储单元可以为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是位于所述芯片外部的存储单元，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。In a possible implementation manner, when the device is a chip in a terminal device, the chip includes: a processing module and a transceiver module. The processing module may be a processor, for example, and the processor is configured to respond to the uplink timing information. Listen to the uplink data of the SUE; the transceiver module may be, for example, an input/output interface, pin or circuit on the chip, and transmit the uplink data to other chips or modules coupled with the chip. The processing module can execute the computer-executable instructions stored in the storage unit to support the terminal device to execute the method provided in the first aspect. Optionally, the storage unit may be a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip, such as a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.

在一种可能的实现方式中，该装置包括：处理器，基带电路，射频电路和天线。其中处理器用于实现对各个电路部分功能的控制，基带电路用于生成数据包，经由射频电路进行模拟转换、滤波、放大和上变频等处理后，再经由天线发送给无线接入网设备。可选的，该装置还包括存储器，其保存终端设备必要的程序指令和数据。In a possible implementation manner, the device includes: a processor, a baseband circuit, a radio frequency circuit, and an antenna. The processor is used to control the functions of each circuit part, and the baseband circuit is used to generate data packets, which are processed by analog conversion, filtering, amplification and up-conversion through the radio frequency circuit, and then sent to the wireless access network equipment through the antenna. Optionally, the device further includes a memory, which stores necessary program instructions and data for the terminal device.

其中，上述任一处提到的处理器，可以是一个通用中央处理器(Central Processing Unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面数据传输方法的程序执行的集成电路。Among them, the processor mentioned in any of the above can be a general-purpose central processing unit (Central Processing Unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more An integrated circuit used to control the program execution of the above-mentioned data transmission methods.

第三方面，本申请实施例提供一种计算机可读存储介质，所述计算机存储介质存储有计算机指令，所述计算机指令用于执行上述第一方面中任意可能的实施方式所述的方法。In a third aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer storage medium stores computer instructions, and the computer instructions are used to execute the method described in any possible implementation manner in the first aspect.

第四方面，本申请实施例提供一种包含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第一方面中任意可能的实施方式所述的方法。In a fourth aspect, embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the method described in any possible implementation manner in the first aspect.

第五方面，本申请实施例提供一种通信系统，该系统包括上述方面所述的无线接入网设备和终端。In a fifth aspect, an embodiment of the present application provides a communication system, which includes the radio access network device and terminal described in the foregoing aspect.

从以上技术方案可以看出，本申请实施例具有以下优点：该CUE在获取到该上行定时信息之后再对该SUE的上行数据进行侦听并转发给无线接入网设备，这样可以有效保证该CUE与该SUE发送的上行数据可以一定时间同步，防止无线接入网设备的接收该SUE的上行数据时出现混乱。It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: after the CUE obtains the uplink timing information, the uplink data of the SUE is intercepted and forwarded to the radio access network device, which can effectively guarantee the The uplink data sent by the CUE and the SUE can be synchronized at a certain time to prevent confusion when the radio access network device receives the uplink data of the SUE.

Description of the drawings

图1为本申请实施例中终端设备协作的一个示例性系统架构图；FIG. 1 is an exemplary system architecture diagram of terminal device cooperation in an embodiment of this application;

图2为本申请实施例中数据传输方法的一个实施例示意图；FIG. 2 is a schematic diagram of an embodiment of a data transmission method in an embodiment of the application;

图3为本申请实施例中资源配置的一个实施例示意图；Figure 3 is a schematic diagram of an embodiment of resource configuration in an embodiment of the application;

图4为本申请实施例中终端设备的一个实施例示意图；FIG. 4 is a schematic diagram of an embodiment of a terminal device in an embodiment of the application;

图5为本申请实施例中终端设备的另一个实施例示意图；FIG. 5 is a schematic diagram of another embodiment of a terminal device in an embodiment of this application;

图6为本申请实施例中数据传输系统的一个实施例示意图。Fig. 6 is a schematic diagram of an embodiment of a data transmission system in an embodiment of the application.

detailed description

本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, without having to use To describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in a sequence other than the content illustrated or described here. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

随着通信技术的发展，全世界范围内的无线连接数量正在经历持续地高速增长，各种新的无线业务类型也大量涌现，例如物联网、自动驾驶等，这些都对下一代无线通信系统，提出了更高的要求。UC是下一代通信系统(5G)主要支持的特性之一，其可以显著提高系统的容量以及网络的覆盖范围，同时可以降低基站端的负载，典型的上行用户协作场景如图1所示。具体地，基于用户协作的上行传输主要由两个阶段：第一阶段SUE发送数据给CUE，即图1中的SUE1发送数据给CUE1和CUE2；第二阶段CUE1和CUE2将正确接收到的信号转发给基站(可以有不同的转发方式，例如放大转发、解码转发、压缩转发等)。这样SUE在CUE1和CUE2的帮助下实现数据可靠传输，从而提升上行覆盖和系统传输效率。而为了保证上行接收侧(基站侧)的时间同步，提出了上行定时提前(Timing Advance，TA)的机制。UE接收到基站下行子帧的起始时间成为下行定时，UE传输上行子帧的起始时间称为上行定时。在UE侧看来，timing advance本质上是接收到下行子帧的起始时间与传输上行子帧的时间之间的一个时间偏移。基站通过适当地控制每个UE的偏移，可以控制来自不同UE的上行信号到达基站的时间。对于离基站较远的UE，由于有较大的传输延迟，就要比离基站较近的UE提前发送上行数据。而目前的UC场景中CUE、SUE与上行接收侧之间的同步问题暂时还未有解决方案。With the development of communication technology, the number of wireless connections around the world is experiencing continuous rapid growth, and various new wireless service types are also emerging in large numbers, such as the Internet of Things, autonomous driving, etc., which are all important to the next generation of wireless communication systems. Put forward higher requirements. UC is one of the main features supported by the next generation communication system (5G). It can significantly increase the capacity of the system and the coverage of the network, while reducing the load on the base station side. A typical uplink user collaboration scenario is shown in Figure 1. Specifically, uplink transmission based on user cooperation mainly consists of two stages: the first stage SUE sends data to CUE, that is, SUE1 in Figure 1 sends data to CUE1 and CUE2; the second stage CUE1 and CUE2 forward the correctly received signal To the base station (there can be different forwarding methods, such as amplifying forwarding, decoding forwarding, compression forwarding, etc.). In this way, the SUE realizes reliable data transmission with the help of CUE1 and CUE2, thereby improving uplink coverage and system transmission efficiency. In order to ensure time synchronization on the uplink receiving side (base station side), an uplink timing advance (TA) mechanism is proposed. The start time when the UE receives the downlink subframe of the base station becomes the downlink timing, and the start time when the UE transmits the uplink subframe is called the uplink timing. From the perspective of the UE, the timing advance is essentially a time offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe. The base station can control the time at which uplink signals from different UEs arrive at the base station by appropriately controlling the offset of each UE. For UEs that are far away from the base station, due to greater transmission delay, it is necessary to send uplink data earlier than UEs that are closer to the base station. However, there is no solution for the synchronization problem between the CUE, SUE and the uplink receiving side in the current UC scene.

为了解决这一问题，本申请实施例中提供了如下技术方案：在该UC场景下，该CUE与该SUE作为一个协作用户组；在数据传输的过程中，该CUE获取自身的上行定时信息或者获取该SUE的上行定时信息；然后该CUE根据该上行定时信息侦听该SUE发送给无线接入网设备的上行数据；最后该CUE在获取到该上行数据之后将该上行数据按照该自身的上行定时信息或该SUE的上行定时信息转发给该无线接入网设备。In order to solve this problem, the following technical solutions are provided in the embodiments of this application: In the UC scenario, the CUE and the SUE act as a cooperative user group; in the process of data transmission, the CUE obtains its own uplink timing information or Obtain the uplink timing information of the SUE; then, according to the uplink timing information, the CUE listens to the uplink data sent by the SUE to the radio access network device; finally, the CUE obtains the uplink data according to its own uplink data. The timing information or the uplink timing information of the SUE is forwarded to the radio access network device.

本申请中，无线接入网设备可以是任意一种具有无线收发功能的设备。包括但不限于：LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或收发点(transmission receiving point/transmission reception point,TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的TRP。无线接入网设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)，和/或分布单元(distributed unit,DU)。无线接入网设备还可以是服务器，可穿戴设备，或车载设备等。以下以无线接入网设备为基站为例进行说明。所述多个无线接入网设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端设备进行通信，也可以通过中继站与终端设备进行通信。终端设备可以与不同技术的多个基站进行通信，例如，终端设备可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。In this application, the wireless access network device may be any device with a wireless transceiver function. Including but not limited to: evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional NodeB), base station in NR (gNodeB or gNB) or transmission receiving point/transmission reception point (TRP), 3GPP Subsequent evolution of base stations, access nodes in the WiFi system, wireless relay nodes, wireless backhaul nodes, etc. The base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. Multiple base stations can support networks of the same technology mentioned above, or networks of different technologies mentioned above. The base station can contain one or more co-site or non-co-site TRPs. The radio access network device may also be a radio controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (cloud radio access network, CRAN) scenario. The wireless access network device can also be a server, a wearable device, or a vehicle-mounted device, etc. The following takes the wireless access network device as a base station as an example for description. The multiple radio access network devices may be base stations of the same type, or base stations of different types. The base station can communicate with the terminal equipment, and can also communicate with the terminal equipment through the relay station. The terminal device can communicate with multiple base stations of different technologies. For example, the terminal device can communicate with a base station that supports an LTE network, can also communicate with a base station that supports a 5G network, and can also support communication with a base station of an LTE network and a base station of a 5G network. Double connection.

终端设备是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、车载终端设备、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、可穿戴终端设备等等。终端设备有时也可以称为用户设备(user equipment，UE)、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、终端设备、无线通信设备、UE代理或UE装置等。终端也可以是固定的或者移动的。中继可以是上述的网络设备，也可以是上述的终端。A terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, airplanes, etc.). Balloons and satellites are classy). The terminal equipment may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control ( Wireless terminals in industrial control, in-vehicle terminal equipment, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety (transportation) Wireless terminals in safety), wireless terminals in smart cities, wireless terminals in smart homes, wearable terminal devices, and so on. Terminal equipment can sometimes be called user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, terminal equipment, wireless communication equipment, UE agent or UE device, etc. The terminal can also be fixed or mobile. The relay can be the aforementioned network device or the aforementioned terminal.

具体请参阅图2所示，本申请实施例中数据传输方法的一个实施例，包括：For details, please refer to FIG. 2. An embodiment of the data transmission method in the embodiment of the present application includes:

201、该CUE获取上行定时信息，该上行定时信息为该CUE自身的上行定时信息或为SUE的上行定时信息。201. The CUE obtains uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information of the SUE.

在用户设备协作的场景下，该CUE为了实现与SUE之间的上行数据同步，该CUE获取在数据传输过程中上行定时信息，其中，该上行定时信息可以是该无线接入网设备分配给该CUE的上行定时信息，也可以是与该CUE为同一个用户组里的SUE的上行定时信息。In the scenario of user equipment cooperation, in order to achieve uplink data synchronization between the CUE and the SUE, the CUE obtains uplink timing information during data transmission, where the uplink timing information may be allocated by the radio access network device to the The uplink timing information of the CUE may also be the uplink timing information of the SUE in the same user group as the CUE.

可以理解的是，若该CUE获取该SUE的上行定时信息可以采用如下几种可能实现方式：It is understandable that if the CUE obtains the uplink timing information of the SUE, the following possible implementation methods can be adopted:

同时，在该SUE向该CUE发送该SUE的上行定时信息时，该SUE可以采用如下几种方式：At the same time, when the SUE sends the uplink timing information of the SUE to the CUE, the SUE can adopt the following methods:

202、该SUE向该无线接入网设备发送上行数据。202. The SUE sends uplink data to the radio access network device.

在数据传输过程中，该SUE利用上行资源向该无线接入网设备发送上行数据。During the data transmission process, the SUE uses uplink resources to send uplink data to the radio access network device.

本实施例中，该SUE的上行资源可以是该无线接入网设备实时配置，也可以是预先配置在TFRP内的对应的资源块。一种示例中，该TFRP内的资源块配置如图3所示。在图中，黑色格子为该SUE可占用的资源块，即该SUE可以在这些资源块上传输数据。In this embodiment, the uplink resource of the SUE may be real-time configuration of the radio access network device, or may be a corresponding resource block pre-configured in the TFRP. In an example, the resource block configuration in the TFRP is shown in Figure 3. In the figure, the black grids are the resource blocks that the SUE can occupy, that is, the SUE can transmit data on these resource blocks.

203、该CUE根据该上行定时信息侦听该上行数据。203. The CUE listens to the uplink data according to the uplink timing information.

该CUE在获取到该上行定时信息后，可以采用如下几种方式侦听该SUE的上行数据。具体情况如下：After the CUE obtains the uplink timing information, it can use the following methods to listen to the uplink data of the SUE. Details are as follows:

一种可能实现方式中，该CUE按照该上行定时信息在每个传输时隙里都侦听该SUE的上行数据。In a possible implementation manner, the CUE listens to the uplink data of the SUE in each transmission time slot according to the uplink timing information.

另一种可能实现方式中，所述CUE接收所述无线接入网设备发送的指示信息，所述指示信息用于指示所述SUE在TFRP内的资源块位置。在该SUE的上行资源是按照TFRP进行配置时，该无线接入网设备将该SUE在TFRP内的资源块位置通知给该CUE时，可以精确的控制CUE的侦听窗口，从而使得该CUE在接收SUE的上行数据时达到节能的效果。In another possible implementation manner, the CUE receives indication information sent by the radio access network device, where the indication information is used to indicate the resource block location of the SUE in the TFRP. When the uplink resources of the SUE are configured in accordance with TFRP, when the radio access network device notifies the CUE of the resource block location of the SUE in the TFRP, it can precisely control the listening window of the CUE so that the CUE is in It achieves energy saving effect when receiving uplink data of SUE.

204、该CUE将该上行数据转发给该无线接入网设备。204. The CUE forwards the uplink data to the radio access network device.

该CUE在接收到该SUE的上行数据之后，将该SUE的上行数据转发给该无线接入网设备，以实现与该SUE发送的上行数据的同步。After the CUE receives the uplink data of the SUE, it forwards the uplink data of the SUE to the radio access network device to achieve synchronization with the uplink data sent by the SUE.

上面描述了本申请实施例中的数据传输方法，下面对本申请实施例中的重传装置进行描述。The data transmission method in the embodiment of the present application is described above, and the retransmission apparatus in the embodiment of the present application is described below.

本申请实施例中该终端设备400包括：获取模块401、侦听模块401和发送模块403。终端设备400可以是上述方法实施例中的CUE，也可以是CUE内的一个或多个芯片。终端设备400可以用于执行上述方法实施例中的CUE的部分或全部功能。In the embodiment of the present application, the terminal device 400 includes: an acquisition module 401, a listening module 401, and a sending module 403. The terminal device 400 may be the CUE in the foregoing method embodiment, or may be one or more chips in the CUE. The terminal device 400 may be used to perform part or all of the functions of the CUE in the foregoing method embodiment.

例如，该获取模块401可以用于执行上述方法实施例中的步骤201；该侦听模块402可以用于执行上述方法实施例中的步骤203；该发送模块203可以用于执行上述方法实施例中的步骤204。例如，获取模块401，用于获取上行定时信息，所述上行定时信息为所述CUE自身的上行定时信息或所述上行定时信息为源用户设备SUE的上行定时信息；侦听模块402，用于根据所述上行定时信息侦听所述SUE的上行数据；发送模块403，用于将所述上行数据发送给无线接入网设备。For example, the acquiring module 401 may be used to perform step 201 in the above method embodiment; the listening module 402 may be used to perform step 203 in the above method embodiment; the sending module 203 may be used to perform step 203 in the above method embodiment的步骤204. For example, the obtaining module 401 is configured to obtain uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information is the uplink timing information of the source user equipment SUE; the listening module 402 is configured to Listen to the uplink data of the SUE according to the uplink timing information; the sending module 403 is configured to send the uplink data to the radio access network device.

可选的，所述侦听模块402，用于用于按照所述上行定时信息在每个传输时隙侦听所述SUE的上行数据；或，接收所述无线接入网设备发送的下行控制信息，所述下行控制信息用于指示所述CUE侦听上行数据时的第一指定时隙；按照所述上行定时信息在所述第一指定时隙侦听所述SUE的上行数据；或，接收所述SUE发送的侧行控制信息，所述侧行控制信息用于指示所述CUE侦听上行数据时的第二指定时隙；按照所述上行定时信息在所述第二指定时隙侦听所述SUE的上行数据；或，根据目标上行定时信息侦听所述SUE的上行数据，所述目标上行定时信息指示的时长为所述上行定时信息指示的时长的一半。Optionally, the listening module 402 is configured to listen to the uplink data of the SUE in each transmission time slot according to the uplink timing information; or, receive the downlink control sent by the radio access network device Information, the downlink control information is used to indicate the first designated time slot when the CUE listens to uplink data; to listen to the uplink data of the SUE in the first designated time slot according to the uplink timing information; or, Receive side-line control information sent by the SUE, where the side-line control information is used to indicate the second designated time slot when the CUE listens to uplink data; according to the uplink timing information, the second designated time slot Listening to the uplink data of the SUE; or listening to the uplink data of the SUE according to target uplink timing information, where the duration indicated by the target uplink timing information is half of the duration indicated by the uplink timing information.

可选的，终端设备400还包括存储模块，此存储模块于侦听模块耦合，使得侦听模块可执行存储模块中存储的计算机执行指令以实现上述方法实施例中CUE的功能。在一个示例中，终端设备400中可选的包括的存储模块可以为芯片内的存储单元，如寄存器、缓存等，所述存储模块还可以是位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。Optionally, the terminal device 400 further includes a storage module, which is coupled to the interception module, so that the interception module can execute the computer-executable instructions stored in the storage module to implement the function of the CUE in the foregoing method embodiment. In an example, the storage module optionally included in the terminal device 400 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module may also be a storage unit located outside the chip, such as a read-only memory (read-only memory). -only memory, ROM for short) or other types of static storage devices that can store static information and instructions, random access memory (RAM for short), etc.

应理解，上述图4对应实施例中终端设备的各模块之间所执行的流程与前述图2中对应方法实施例中的CUE执行的流程类似，具体此处不再赘述。It should be understood that the process executed between the modules of the terminal device in the corresponding embodiment of FIG. 4 is similar to the process executed by the CUE in the corresponding method embodiment of FIG.

图5示出了上述实施例中一种终端设备500可能的结构示意图，该终端设备500可以配置成是前述CUE。该终端设备500可以包括：处理器502、计算机可读存储介质/存储器503、收发器504、输入设备505和输出设备506，以及总线501。其中，处理器，收发器，计算机可读存储介质等通过总线连接。本申请实施例不限定上述部件之间的具体连接介质。FIG. 5 shows a schematic diagram of a possible structure of a terminal device 500 in the foregoing embodiment. The terminal device 500 may be configured as the aforementioned CUE. The terminal device 500 may include: a processor 502, a computer-readable storage medium/memory 503, a transceiver 504, an input device 505 and an output device 506, and a bus 501. Among them, the processor, transceiver, computer-readable storage medium, etc. are connected by a bus. The embodiments of the present application do not limit the specific connection medium between the foregoing components.

一个示例中，收发器504，用于获取上行定时信息，所述上行定时信息为所述CUE自身的上行定时信息或所述上行定时信息为源用户设备SUE的上行定时信息；In an example, the transceiver 504 is configured to obtain uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information is the uplink timing information of the source user equipment SUE;

该处理器502，用于根据所述上行定时信息侦听所述SUE的上行数据；The processor 502 is configured to listen to the uplink data of the SUE according to the uplink timing information;

收发器504，用于将所述上行数据发送给无线接入网设备。The transceiver 504 is configured to send the uplink data to the wireless access network device.

一个示例中，处理器502可以包括基带电路，例如，可以对数据按照协议进行数据封装，编码等以生成数据包。收发器504可以包括射频电路，以对数据包进行调制放大等处理后发送给无线接入网设备。In an example, the processor 502 may include a baseband circuit. For example, the data may be encapsulated and encoded according to a protocol to generate a data packet. The transceiver 504 may include a radio frequency circuit to perform processing such as modulation and amplification on the data packet before sending it to the wireless access network device.

又一个示例中，处理器502可以运行操作系统，控制各个设备和器件之间的功能。收发器504可以包括基带电路和射频电路，例如，可以对数据包经由基带电路，射频电路进行处理后发送给无线接入网设备。In another example, the processor 502 may run an operating system to control functions between various devices and devices. The transceiver 504 may include a baseband circuit and a radio frequency circuit. For example, the data packet may be processed by the baseband circuit and the radio frequency circuit and sent to the wireless access network device.

该收发器504与该处理器502可以实现上述图2中任一实施例中相应的步骤，具体此处不做赘述。The transceiver 504 and the processor 502 can implement the corresponding steps in any of the above-mentioned embodiments in FIG. 2, and details are not described here.

可以理解的是，图5仅仅示出了CUE的简化设计，在实际应用中，CUE可以包含任意数量的收发器，处理器，存储器等，而所有的可以实现本申请的CUE都在本申请的保护范围之内。It is understandable that Figure 5 only shows the simplified design of the CUE. In practical applications, the CUE can include any number of transceivers, processors, memories, etc., and all the CUEs that can implement this application are in this application. Within the scope of protection.

上述终端设备500中涉及的处理器502可以是通用处理器，例如通用中央处理器(CPU)、网络处理器(network processor，NP)、微处理器等，也可以是特定应用集成电路(application-specific integrated circBIt，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。还可以是数字信号处理器(digital signal processor，DSP)、现场可编程门阵列(field-programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。控制器/处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。处理器通常是基于存储器内存储的程序指令来执行逻辑和算术运算。The processor 502 involved in the aforementioned terminal device 500 may be a general-purpose processor, such as a general-purpose central processing unit (CPU), a network processor (NP), a microprocessor, etc., or may be an application-specific integrated circuit (application-specific integrated circuit). specific integrated circBIt, ASIC), or one or more integrated circuits used to control the execution of the program of this application. It may also be a digital signal processor (DSP), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, or discrete hardware components. The controller/processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of DSP and microprocessor, and so on. The processor usually executes logic and arithmetic operations based on program instructions stored in the memory.

上述涉及的总线501可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。该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5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 aforementioned bus 501 may be a peripheral component interconnect standard (peripheral component interconnect, PCI for short) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of presentation, only one thick line is used to represent in FIG. 5, but it does not mean that there is only one bus or one type of bus.

上述涉及的计算机可读存储介质/存储器503还可以保存有操作系统和其他应用程序。具体地，程序可以包括程序代码，程序代码包括计算机操作指令。更具体的，上述存储器可以是只读存储器(read-only memory，ROM)、可存储静态信息和指令的其他类型的静态存储设备、随机存取存储器(random access memory，RAM)、可存储信息和指令的其他类型的动态存储设备、磁盘存储器等等。存储器503可以是上述存储类型的组合。并且上述计算机可读存储介质/存储器可以在处理器中，还可以在处理器的外部，或在包括处理器或处理电路的多个实体上分布。上述计算机可读存储介质/存储器可以具体体现在计算机程序产品中。举例而言，计算机程序产品可以包括封装材料中的计算机可读介质。The aforementioned computer-readable storage medium/memory 503 may also store an operating system and other application programs. Specifically, the program may include program code, and the program code includes computer operation instructions. More specifically, the above-mentioned memory may be read-only memory (ROM), other types of static storage devices that can store static information and instructions, random access memory (RAM), information that can be stored, and other types of static storage devices. Instructions for other types of dynamic storage devices, disk storage, etc. The memory 503 may be a combination of the storage types described above. In addition, the above-mentioned computer-readable storage medium/memory may be in the processor, may also be external to the processor, or distributed on multiple entities including the processor or processing circuit. The aforementioned computer-readable storage medium/memory may be embodied in a computer program product. For example, the computer program product may include a computer-readable medium in packaging materials.

可以替换的，本申请实施例还提供一种通用处理系统，例如通称为芯片，该通用处理系统包括:提供处理器功能的一个或多个微处理器；以及提供存储介质的至少一部分的外部存储器，所有这些都通过外部总线体系结构与其它支持电路连接在一起。当存储器存储的指令被处理器执行时，使得处理器执行CUE在图2所述实施例中的数据传输方法中的部分或全部步骤，和/或用于本申请所描述的技术的其它过程。Alternatively, the embodiments of the present application also provide a general-purpose processing system, for example, commonly referred to as a chip. The general-purpose processing system includes: one or more microprocessors that provide processor functions; and an external memory that provides at least a part of a storage medium , All of these are connected with other supporting circuits through the external bus architecture. When the instructions stored in the memory are executed by the processor, the processor is caused to execute part or all of the steps in the data transmission method of the CUE in the embodiment of FIG. 2 and/or other processes used in the technology described in this application.

结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于终端设备中。当然，处理器和存储介质也可以作为分立组件存在于终端设备中。The steps of the method or algorithm described in combination with the disclosure of this application can be implemented in a hardware manner, or can be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, which can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage known in the art Medium. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in the terminal device. Of course, the processor and the storage medium may also exist as discrete components in the terminal device.

具体请参阅图6，本申请实施例中通信系统的一个实施例包括：Please refer to FIG. 6 for details. An embodiment of the communication system in the embodiment of the present application includes:

第一终端设备601、第二终端设备602和无线接入网设备603；The first terminal device 601, the second terminal device 602, and the wireless access network device 603;

其中，该第一终端设备601、该第二终端设备602和该无线接入网设备603通过网络系统实现数据传输；Wherein, the first terminal device 601, the second terminal device 602, and the wireless access network device 603 implement data transmission through a network system;

该第一终端设备601具备图2中CUE的全部功能，该第二终端设备602具备图2中SUE的全部功能、该无线接入网设备603具备图2中无线接入网设备的全部功能。The first terminal device 601 has all the functions of the CUE in FIG. 2, the second terminal device 602 has all the functions of the SUE in FIG. 2, and the radio access network device 603 has all the functions of the radio access network device in FIG. 2.

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 conciseness of the description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

在本申请所提供的几个实施例中，应该理解到，所揭露的系统，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, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

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

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。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

所述集成的单元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全部或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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the embodiments are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A data transmission method, characterized in that it comprises:

The cooperative user equipment CUE obtains uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information is the uplink timing information of the source user equipment SUE;

The CUE listens to the uplink data of the SUE according to the uplink timing information;

The CUE sends the uplink data to the radio access network device.

The method according to claim 1, wherein the CUE listening to the uplink data of the SUE according to the uplink timing information comprises:

The CUE listens to the uplink data of the SUE in each transmission time slot according to the uplink timing information;

or,

Receiving, by the CUE, downlink control information sent by the radio access network device, where the downlink control information is used to indicate the first designated time slot when the CUE listens to uplink data;

The CUE listens to the uplink data of the SUE in the first designated time slot according to the uplink timing information;

or,

Receiving, by the CUE, side control information sent by the SUE, where the side control information is used to indicate a second designated time slot when the CUE listens to uplink data;

The CUE listens to the uplink data of the SUE in the second designated time slot according to the uplink timing information;

or,

The CUE listens to the uplink data of the SUE according to target uplink timing information, and the duration indicated by the target uplink timing information is half of the duration indicated by the uplink timing information.

The method according to claim 1, wherein when the uplink timing information is the uplink timing information of the source user equipment SUE, the cooperative user equipment CUE obtaining the uplink timing information comprises:

Receiving, by the CUE, downlink control information sent by the radio access network device, where the downlink control information carries uplink timing information of the SUE;

or,

Receiving, by the CUE, side control information sent by the SUE, where the side control information carries uplink timing information of the SUE;

or,

The CUE receives radio resource control information sent by the SUE, where the radio resource control information carries uplink timing information of the SUE.

The method according to claim 3, wherein the CUE receiving the side control information sent by the SUE comprises:

Receiving, by the CUE, the side control information periodically sent by the SUE;

or,

The CUE receives the side control information sent by the SUE after sending the uplink scheduling request.

The method according to claim 3, wherein the CUE receiving radio resource control information sent by the SUE comprises:

Receiving, by the CUE, the radio resource control information periodically sent by the SUE;

or,

The CUE receives the radio resource control information sent by the SUE after sending the uplink scheduling request.

The method according to any one of claims 1 to 5, wherein the CUE and the SUE use independent resource pools for data transmission, and the independent resource pool is used for the CUE and the SUE to cooperate data transmission.

The method according to any one of claims 1 to 5, wherein the method further comprises:

Acquiring, by the CUE, the uplink resource of the SUE;

The CUE listening to the uplink data of the SUE according to the uplink timing information includes:

The CUE listens to the uplink data of the SUE according to the uplink resource and the uplink timing information.

The method according to claim 7, wherein the CUE acquiring the uplink resource of the SUE comprises:

Receiving, by the CUE, scheduling information sent by the radio access network device, where the scheduling information is used to indicate the uplink resources of the SUE;

The CUE obtains the uplink resource of the SUE according to the scheduling information.

The CUE receives the indication information sent by the radio access network device, where the indication information is used to indicate the resource block position of the SUE in the time-frequency resource pattern TFRP.

A terminal device applied to CUE, characterized in that it includes:

An obtaining module, configured to obtain uplink timing information, where the uplink timing information is the uplink timing information of the CUE itself or the uplink timing information is the uplink timing information of the source user equipment SUE;

A listening module, configured to listen to the uplink data of the SUE according to the uplink timing information;

The sending module is used to send the uplink data to the wireless access network device.

The terminal device according to claim 10, wherein the listening module is specifically configured to listen to the uplink data of the SUE in each transmission time slot according to the uplink timing information;

or,

Receive downlink control information sent by the radio access network device, where the downlink control information is used to indicate the first designated time slot when the CUE listens to uplink data; according to the uplink timing information, when the first designated time To listen to the uplink data of the SUE;

or,

Receive side-line control information sent by the SUE, where the side-line control information is used to indicate the second designated time slot when the CUE listens to uplink data; according to the uplink timing information, the second designated time slot is detected; Listening to the uplink data of the SUE;

or,

Listen to the uplink data of the SUE according to the target uplink timing information, and the duration indicated by the target uplink timing information is half of the duration indicated by the uplink timing information.

The terminal device according to claim 10, wherein when the uplink timing information is the uplink timing information of the source user equipment SUE, the acquisition module is specifically configured to receive downlink control sent by the radio access network device Information, the downlink control information carries uplink timing information of the SUE;

or,

Receiving side-line control information sent by the SUE, where the side-line control information carries uplink timing information of the SUE;

Receiving radio resource control information sent by the SUE, where the radio resource control information carries uplink timing information of the SUE.

The terminal device according to claim 12, wherein the acquiring module is specifically configured to receive the side control information periodically sent by the SUE;

or,

Receiving the side control information sent by the SUE after sending the uplink scheduling request.

The terminal device according to claim 12, wherein the acquiring module is specifically configured to receive the radio resource control information periodically sent by the SUE;

or,

Receiving the radio resource control information sent by the SUE after sending the uplink scheduling request.

The terminal device according to any one of claims 10 to 14, wherein the CUE and the SUE use independent resource pools for data transmission, and the independent resource pool is used for the CUE and the SUE to perform data transmission. Collaborative data transmission.

The terminal device according to any one of claims 10 to 14, wherein the obtaining module is further configured to obtain uplink resources of the SUE;

The listening module is specifically configured to listen to the uplink data of the SUE according to the uplink resource and the uplink timing information.

The terminal device according to claim 16, wherein the acquisition module is specifically configured to receive scheduling information sent by the radio access network device, and the scheduling information is used to indicate the uplink resources of the SUE; The scheduling information obtains the uplink resources of the SUE.

The terminal device according to claim 16, wherein the acquisition module is specifically configured to receive indication information sent by the radio access network device, and the indication information is used to indicate the resources of the SUE in the TFRP Block location.

A terminal device applied to a CUE, characterized by comprising at least one processor and at least one memory, wherein a computer-readable program is stored in the memory, and the processor runs the program in the memory to Used to complete the method described in any one of claims 1 to 9.

A computer-readable storage medium, wherein the computer storage medium stores computer instructions, and the computer instructions are used to execute the method according to any one of claims 1 to 9.

A computer program product containing instructions, characterized in that, when the computer program product runs on a computer, the computer is caused to execute the method according to any one of claims 1 to 9.