在通信领域中，对于数据量小且传输频率低的终端设备(User Equipment，UE)，为了避免不必要的功耗和信令消耗，目前提出了小数据传输(Small Data Transmission，SDT)的研究。In the field of communications, for user equipment (UE) with small data volume and low transmission frequency, in order to avoid unnecessary power consumption and signaling consumption, research on small data transmission (SDT) has been proposed.

目前，网络设备可以为终端设备配置CG(configured grant，配置授权)资源，以支持终端设备基于CG资源执行SDT过程。在执行SDT时，终端设备通常需要选择载波和波束，若终端设备所选择的载波和波束上存在网络设备配置的CG资源，则终端设备就可以执行SDT过程。Currently, network devices can configure CG (configured grant) resources for terminal devices to support the terminal devices to perform SDT processes based on CG resources. When performing SDT, terminal devices usually need to select carriers and beams. If the carriers and beams selected by the terminal devices have CG resources configured by the network device, the terminal devices can perform the SDT process.

然而，在网络设备所配置的CG资源不合适的时候，就会出现终端设备所选择的载波和波束上不存在CG资源，进而会导致SDT过程的成功率较低。However, when the CG resources configured by the network equipment are inappropriate, there will be no CG resources on the carrier and beam selected by the terminal device, which will result in a low success rate of the SDT process.

发明内容Summary of the invention

本申请实施例提供一种通信方法及装置，以提升SDT过程的成功率。The embodiments of the present application provide a communication method and apparatus to improve the success rate of the SDT process.

第一方面，本申请实施例提供一种通信方法，包括：In a first aspect, an embodiment of the present application provides a communication method, including:

所述终端设备向网络设备发送第一消息，其中，所述第一消息中包括记录小数据传输的第一信息。The terminal device sends a first message to the network device, wherein the first message includes first information for recording small data transmission.

第二方面，本申请实施例提供一种通信装置，包括：In a second aspect, an embodiment of the present application provides a communication device, including:

发送模块，用于所述终端设备向网络设备发送第一消息，其中，所述第一消息中包括记录小数据传输的第一信息。The sending module is used for the terminal device to send a first message to the network device, wherein the first message includes first information recording the transmission of small data.

第三方面，本申请实施例提供一种终端设备，包括：收发器、处理器、存储器；In a third aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory;

所述存储器存储计算机执行指令；The memory stores computer-executable instructions;

所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如上第一方面所述的通信方法。The processor executes the computer-executable instructions stored in the memory, so that the processor performs the communication method as described in the first aspect above.

第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现如上第一方面所述的通信方法。In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the communication method described in the first aspect above.

第五方面，本申请实施例提供一种计算机程序产品，包括计算机程序，其特征在于，所述计算机程序被处理器执行时实现如上第一方面所述的通信方法。In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, characterized in that when the computer program is executed by a processor, it implements the communication method described in the first aspect above.

本申请实施例提供一种通信方法及装置，该方法包括：终端设备向网络设备发送第一消息，其中，第一消息中包括记录小数据传输的第一信息。通过终端设备向网络设备上报包括小数据传输的第一信息的第一消息，以使得网络设备可以根据第一消息对SDT的配置进行优化，进而可以有效的提升SDT过程的成功率。The embodiment of the present application provides a communication method and apparatus, the method comprising: a terminal device sends a first message to a network device, wherein the first message includes first information recording small data transmission. The terminal device reports the first message including the first information of small data transmission to the network device, so that the network device can optimize the configuration of SDT according to the first message, thereby effectively improving the success rate of the SDT process.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本申请实施例提供的上行链路示意图；FIG1 is a schematic diagram of an uplink provided in an embodiment of the present application;

图2为本申请实施例提供的通信场景的示意图；FIG2 is a schematic diagram of a communication scenario provided in an embodiment of the present application;

图3为本申请实施例提供的基于随机接入过程的SDT过程的实现示意图；FIG3 is a schematic diagram of an implementation of an SDT process based on a random access process provided in an embodiment of the present application;

图4为本申请实施例提供的基于预配置资源的SDT过程的实现示意图；FIG4 is a schematic diagram of an implementation of an SDT process based on pre-configured resources provided in an embodiment of the present application;

图5为本申请实施例提供的自组织网络的信令流程图；FIG5 is a signaling flow chart of a self-organizing network provided in an embodiment of the present application;

图6为本申请实施例提供的通信方法的流程图；FIG6 is a flow chart of a communication method provided in an embodiment of the present application;

图7为本申请实施例提供的通信方法的流程图二；FIG7 is a second flowchart of the communication method provided in an embodiment of the present application;

图8为本申请实施例提供的终端设备选择资源的实现示意图一；FIG8 is a schematic diagram of a first implementation of a terminal device selecting resources provided in an embodiment of the present application;

图9为本申请实施例提供的终端设备选择资源的实现示意图二；FIG9 is a second schematic diagram of a terminal device selecting resources according to an embodiment of the present application;

图10为本申请实施例提供的终端设备选择资源的实现示意图三；FIG10 is a third schematic diagram of a terminal device selecting resources according to an embodiment of the present application;

图11为本申请实施例提供的通信方法的流程图三；FIG11 is a flowchart of a communication method according to an embodiment of the present application;

图12为本申请实施例提供的终端设备选择资源的实现示意图四；FIG12 is a fourth schematic diagram of implementation of resource selection by a terminal device according to an embodiment of the present application;

图13为本申请实施例提供的通信装置的结构示意图；FIG13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

图14为本申请实施例提供的终端设备的结构示意图。FIG. 14 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.

具体实施方式Detailed ways

为了更好的理解本申请的技术方案，下面对本申请所涉及的相关技术进行进一步的详细介绍。In order to better understand the technical solution of the present application, the relevant technologies involved in the present application are further introduced in detail below.

为了便于理解，首先对本申请涉及的概念进行解释说明。To facilitate understanding, the concepts involved in this application are first explained.

终端设备：可以为包含无线收发功能、且可以与网络设备配合为用户提供通讯服务的设备。具体地，终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。例如，终端设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络或5G之后的网络中的终端设备等。Terminal equipment: It can be a device that includes wireless transceiver functions and can cooperate with network equipment to provide communication services to users. Specifically, terminal equipment can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device. For example, the terminal equipment can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a network after 5G, etc.

网络设备：网络设备可以是用于与终端设备进行通信的设备，例如，可以是全球移动通信系统(Global System for Mobile Communication，GSM)或码分多址(Code Division Multiple Access，CDMA)通信系统中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络或5G之后的网络中的网络侧设备或未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的网络设备等。Network equipment: A network equipment may be a device used to communicate with a terminal device, for example, it may be a base station (Base Transceiver Station, BTS) in a Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) communication system, or a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or the network equipment may be a relay station, an access point, an in-vehicle device, a wearable device, a network-side device in a future 5G network or a network after 5G, or a network device in a future evolved public land mobile network (PLMN) network, etc.

本申请实施例中涉及的网络设备也可称为无线接入网(Radio Access Network，RAN)设备。RAN设备与终端设备连接，用于接收终端设备的数据并发送给核心网设备。RAN设备在不同通信系统中对应不同的设备，例如，在2G系统中对应基站与基站控制器，在3G系统中对应基站与无线网络控制器(Radio Network Controller，RNC)，在4G系统中对应演进型基站(Evolutional Node B，eNB)，在5G系统中对应5G系统，如新无线(New Radio，NR)中的接入网设备(例如gNB，集中单元CU，分布式单元DU)。The network devices involved in the embodiments of the present application may also be referred to as radio access network (RAN) devices. The RAN device is connected to the terminal device, and is used to receive data from the terminal device and send it to the core network device. The RAN device corresponds to different devices in different communication systems, for example, in the 2G system, it corresponds to the base station and the base station controller, in the 3G system, it corresponds to the base station and the radio network controller (Radio Network Controller, RNC), in the 4G system, it corresponds to the evolutionary base station (Evolutional Node B, eNB), and in the 5G system, it corresponds to the access network equipment (e.g., gNB, centralized unit CU, distributed unit DU) in the new radio (New Radio, NR).

波束(beam)：波束在NR协议中的体现可以是空域滤波器(spatial filter)，或者称空间滤波器(spatial filter)或空间参数(spatial parameters)。用于发送信号的波束可以称为发射波束(transmission beam，Tx beam)，可以称为空间发送滤波器(spatialdomain transmit filter)或空间发射参数(spatial domain transmit parameter)；用于接收信号的波束可以称为接收波束(reception beam，Rx beam)，可以称为空间接收滤波器(spatial domain receive filter)或空间接收参数(spatial domain receiveparameter)。Beam: The embodiment of beam in NR protocol can be spatial filter, or spatial filter or spatial parameters. The beam used to send signals can be called transmission beam (Tx beam), can be called spatial domain transmit filter or spatial domain transmit parameter; the beam used to receive signals can be called reception beam (Rx beam), can be called spatial domain receive filter or spatial receive parameter.

例如，波束可以理解为空间资源，可以指具有能量传输指向性的发送或接收预编码向量。并且，该发送或接收预编码向量能够通过索引信息进行标识，所述索引信息可以对应配置给终端的资源标识(identity，ID)，比如，所述索引信息可以对应配置的同步信号块(synchronization signal block，SSB)的标识或者资源；也可以对应配置的信道状态信息参考信号(channel state information reference signal，CSI-RS)的标识或者资源；也可以是对应配置的上行探测参考信号(sounding reference signal，SRS)的标识或者资源。可选地，所述索引信息也可以是通过波束承载的信号或信道显式或隐式承载的索引信息。所述能量传输指向性可以指通过该预编码向量对所需发送的信号进行预编码处理，经过该预编码处理的信号具有一定的空间指向性，接收经过该预编码向量进行预编码处理后的信号具有较好的接收功率，如满足接收解调信噪比等；所述能量传输指向性也可以指通过该预编码向量接收来自不同空间位置发送的相同信号具有不同的接收功率。可选地，同一通信装置(比如终端设备或网络设备)可以有不同的预编码向量，不同的设备也可以有不同的预编码向量，即对应不同的波束。针对通信装置的配置或者能力，一个通信装置在同一时刻可以使用多个不同的预编码向量中的一个或者多个，即同时可以形成一个波束或者多个波束。For example, a beam can be understood as a spatial resource, and can refer to a transmission or reception precoding vector with energy transmission directivity. Moreover, the transmission or reception precoding vector can be identified by index information, and the index information can correspond to a resource identifier (identity, ID) configured for the terminal, for example, the index information can correspond to an identifier or resource of a configured synchronization signal block (SSB); it can also correspond to an identifier or resource of a configured channel state information reference signal (CSI-RS); it can also correspond to an identifier or resource of a configured uplink sounding reference signal (SRS). Optionally, the index information can also be index information explicitly or implicitly carried by a signal or channel carried by a beam. The energy transmission directivity can refer to precoding the signal to be transmitted through the precoding vector, and the signal processed by the precoding has a certain spatial directivity, and the signal received after the precoding processing by the precoding vector has a better receiving power, such as satisfying the receiving demodulation signal-to-noise ratio; the energy transmission directivity can also refer to receiving the same signal sent from different spatial positions through the precoding vector with different receiving powers. Optionally, the same communication device (such as a terminal device or a network device) can have different precoding vectors, and different devices can also have different precoding vectors, that is, corresponding to different beams. According to the configuration or capability of the communication device, a communication device can use one or more of a plurality of different precoding vectors at the same time, that is, can form one beam or multiple beams at the same time.

可以理解的是，上文列举的NR协议中对于波束的体现仅为示例，不应对本申请构成任何限定。本申请并不排除在未来的协议中定义其他的术语来表示相同或相似的含义的可能。It is understood that the embodiment of beams in the NR protocol listed above is only an example and should not constitute any limitation to this application. This application does not exclude the possibility of defining other terms in future protocols to express the same or similar meanings.

此外，波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术。波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam may be a beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology. Different beams may be considered as different resources. The same information or different information may be sent through different beams.

NUL：其中，上行链路(UpLink，UL)是指信号从终端设备到网络设备的物理通道，正常的上行链路即为正常上行链路(Normal UpLink，NUL)。NUL: Uplink (UL) refers to the physical channel for signals from terminal equipment to network equipment, and the normal uplink is the normal uplink (Normal UpLink, NUL).

SUL：其中，补充上行链路(Supplementary UpLink，SUL)是补充的上行链路，SUL采用的频段比NUL采用的频段低，SUL覆盖范围比NUL覆盖范围大，例如可以结合图1进行理解，图1为本申请实施例提供的上行链路示意图。SUL: Among them, the supplementary uplink (Supplementary UpLink, SUL) is a supplementary uplink. The frequency band used by SUL is lower than the frequency band used by NUL, and the coverage range of SUL is larger than the coverage range of NUL. For example, it can be understood in conjunction with Figure 1, which is a schematic diagram of the uplink provided in an embodiment of the present application.

如图1所示，NUL和SUL都为上行链路，其中，SUL覆盖范围比NUL覆盖范围大，其中，SUL的频点较低，信号损耗较小，可以保证NUL的覆盖。As shown in FIG. 1 , both NUL and SUL are uplinks, wherein the coverage of SUL is larger than that of NUL. The frequency of SUL is lower and the signal loss is smaller, thereby ensuring the coverage of NUL.

下面，结合图2，对本申请中的通信方法所适用的场景进行说明。Below, in conjunction with Figure 2, the scenarios to which the communication method in this application is applicable are explained.

图2为本申请实施例提供的通信场景的示意图。请参见图2，包括网络设备201和终端设备202，网络设备201和终端设备202之间可以进行无线通信，其中，终端设备202可以经无线接入网(Radio Access Network，RAN)与至少一个核心网进行通信。Fig. 2 is a schematic diagram of a communication scenario provided by an embodiment of the present application. Referring to Fig. 2, a network device 201 and a terminal device 202 are included, and wireless communication can be performed between the network device 201 and the terminal device 202, wherein the terminal device 202 can communicate with at least one core network via a radio access network (RAN).

其中，该通信系统可以为全球移动通讯(Global System of Mobile communication，简称GSM)系统、码分多址(Code Division Multiple Access，简称CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，简称WCDMA)系统、长期演进(Long Term Evolution，简称LTE)系统或第五代移动通信(5th-Generation，简称5G)系统。Among them, the communication system can be a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system or a fifth-generation mobile communication (5th-Generation, 5G) system.

相应的，该网络设备可以为GSM系统或CDMA系统中的基站(Base Transceiver Station，简称BTS)，也可以是WCDMA系统中的基站(NodeB，简称NB)，还可以是LTE系统中的演进型基站(evolved NodeB，简称eNB)、接入点(access point，AP)或者中继站，也可以是5G系统中的基站等，在此不作限定。Correspondingly, the network device can be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved NodeB (eNB), an access point (AP) or a relay station in an LTE system, or a base station in a 5G system, etc., without limitation here.

本申请所述的5G移动通信系统包括非独立组网(non-standalone，NSA)的5G移动通信系统和/或独立组网(standalone，SA)的5G移动通信系统。本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统。通信系统还可以是PLMN网络、设备到设备(device-to-device，D2D)网络、机器到机器(machine to machine，M2M)网络、IoT网络或者其他网络。The 5G mobile communication system described in this application includes a non-standalone (NSA) 5G mobile communication system and/or a standalone (SA) 5G mobile communication system. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. The communication system can also be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an IoT network or other networks.

可以理解的是，若本申请实施例的技术方案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。It can be understood that if the technical solutions of the embodiments of the present application are applied to other wireless communication networks, the corresponding names can also be replaced by the names of corresponding functions in other wireless communication networks.

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 business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network 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.

在上述介绍内容的基础上，下面对本申请的相关技术背景进行说明：Based on the above introduction, the relevant technical background of this application is described below:

在5G NR系统中，RRC状态分为3种，分别为：RRC_IDLE(RRC空闲态)、RRC_INACTIVE(RRC非激活态)、RRC_CONNECTED(RRC连接态)。In the 5G NR system, there are three RRC states: RRC_IDLE (RRC idle state), RRC_INACTIVE (RRC inactive state), and RRC_CONNECTED (RRC connected state).

其中RRC_INACTIVE态是5G系统从节能角度考虑引入的新状态，对于RRC_INACTIVE态的UE，无线承载和全部无线资源都会被释放，但UE侧和基站侧保留UE接入上下文，以便快速恢复RRC连接，网络通常将数据传输不频繁的UE保持在RRC_INACTIVE态。The RRC_INACTIVE state is a new state introduced by the 5G system from the perspective of energy saving. For UEs in the RRC_INACTIVE state, the radio bearer and all radio resources will be released, but the UE side and the base station side retain the UE access context to quickly restore the RRC connection. The network usually keeps UEs with infrequent data transmission in the RRC_INACTIVE state.

Rel-16之前，处于RRC_INACTIVE状态的UE不支持数据传输，当上行(Mobile Original，MO)或下行(Mobile Terminated，MT)数据到达时，UE需要恢复连接，待数据传输完成后再释放到INACTIVE状态。对于数据量小且传输频率低的UE，这样的传输机制会导致不必要的功耗和信令开销。Prior to Rel-16, UEs in the RRC_INACTIVE state did not support data transmission. When uplink (Mobile Original, MO) or downlink (Mobile Terminated, MT) data arrived, the UE needed to restore the connection and release to the INACTIVE state after data transmission was completed. For UEs with small data volumes and low transmission frequencies, such a transmission mechanism would result in unnecessary power consumption and signaling overhead.

因此，Rel-17立项开展对RRC_INACTIVE下小数据传输(Small Data Transmission，SDT)的研究，项目目标主要有两个方向：基于随机接入过程(两步/四步)的上行小数据传输以及基于预配置资源(如CG type1)的上行小数据传输，其中，下面对这两种小数据传输分别进行介绍。Therefore, Rel-17 launched a project to carry out research on small data transmission (SDT) under RRC_INACTIVE. The project objectives mainly have two directions: uplink small data transmission based on random access process (two-step/four-step) and uplink small data transmission based on pre-configured resources (such as CG type1). Among them, these two types of small data transmission are introduced respectively below.

其中，在基于随机接入过程(两步/四步)的上行小数据传输过程中，UE可以在随机接入过程(例如四步随机接入过程(4-step RACH)中进行数据传输，即处于非连接态(即空闲态或非激活态)的UE可以在不进行RRC状态切换的情况下便可完成数据传输。Among them, in the uplink small data transmission process based on the random access process (two-step/four-step), the UE can perform data transmission in the random access process (for example, the four-step random access process (4-step RACH), that is, the UE in a non-connected state (i.e., idle state or inactive state) can complete data transmission without switching the RRC state.

在基于随机接入过程的SDT过程中，UE可能始终保持在空闲态(idle)或者挂起状态(suspend)或者非激活态(inactive)，完成上行和/或下行小数据包的传输，例如可以结合图3进行理解，图3为本申请实施例提供的基于随机接入过程的SDT过程的实现示意图。In the SDT process based on the random access process, the UE may always remain in an idle state, a suspended state, or an inactive state to complete the transmission of uplink and/or downlink small data packets. For example, this can be understood in conjunction with Figure 3, which is a schematic diagram of the implementation of the SDT process based on the random access process provided in an embodiment of the present application.

其中，SDT过程例如可以在随机接入(random access，RA)过程中完成，参见图3：The SDT process may be completed in a random access (RA) process, for example, as shown in FIG3 :

1、UE可以向eNB发送随机接入前导(random access preamble)。1. The UE may send a random access preamble to the eNB.

其中，随机接入前导还可以称为随机接入前导序列、或preamble、或preamble序列。The random access preamble may also be called a random access preamble sequence, or a preamble, or a preamble sequence.

在一种可能的实现方式中，随机接入前导以及发送随机接入前导所占用的时频资源称作为物理随机接入信道(physical random access channel，PRACH)资源。In a possible implementation manner, the random access preamble and the time-frequency resources occupied by sending the random access preamble are referred to as physical random access channel (PRACH) resources.

可选的，终端设备可以选择PRACH资源、以及选取一个preamble，并在选择的PRACH资源上发送选取的preamble。若随机接入的方式为基于非竞争的随机接入，则可以由网络设备指定PRACH资源和preamble，网络设备可以基于终端设备发送的preamble估计定时提前量(timing advance，TA)、以及终端设备传输Msg3所需的上行授权大小。例如，网络设备可以通过系统信息广播可用的PRACH资源。Optionally, the terminal device may select a PRACH resource and a preamble, and send the selected preamble on the selected PRACH resource. If the random access method is non-contention-based random access, the PRACH resource and preamble may be specified by the network device, and the network device may estimate the timing advance (TA) and the uplink grant size required for the terminal device to transmit Msg3 based on the preamble sent by the terminal device. For example, the network device may broadcast available PRACH resources through system information.

2、eNB可以向UE发送随机接入响应(random access response，RAR)。2. The eNB may send a random access response (RAR) to the UE.

其中，RAR中可以包括如下信息：Among them, RAR can include the following information:

RAR的子头中包含回退指示(back-off indicator，BI)，用于指示重传Msg1的回退时间。The RAR subheader includes a back-off indicator (BI) for indicating a back-off time for retransmitting Msg1.

RAR中的RAPID：网络响应收到的preamble index。RAPID in RAR: preamble index received in network response.

RAR的净荷(payload)中包含定时提前组(timing advance group，TAG)，用于调整上行定时。The payload of RAR includes a timing advance group (TAG) for adjusting uplink timing.

上行(up link，UL)grant：用于调度Msg3的上行资源指示。Uplink (UL) grant: an uplink resource indication used to schedule Msg3.

临时(temporary)小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)：用于加扰Msg4的PDCCH。Temporary cell radio network temporary identifier (C-RNTI): used to scramble the PDCCH of Msg4.

如果终端设备接收到RAR-RNTI加扰的PDCCH，并且RAR中包含了自己发送的preamble index，则终端设备认为成功接收了随机接入响应。If the terminal device receives a PDCCH scrambled by RAR-RNTI, and the RAR contains the preamble index sent by itself, the terminal device considers that the random access response has been successfully received.

对于基于非竞争的随机接入，终端设备成功接收Msg2后，随机接入过程结束。对于基于竞争的随机接入，终端设备成功接收Msg2后，还需要继续传输Msg3和接收Msg4。For non-contention-based random access, the random access process ends after the terminal device successfully receives Msg2. For contention-based random access, after the terminal device successfully receives Msg2, it needs to continue to transmit Msg3 and receive Msg4.

3、UE可以向eNB发送RRC连接恢复请求(RRCConnectionResumeRequest)。3. The UE may send an RRC connection resumption request (RRCConnectionResumeRequest) to the eNB.

其中，在RRC连接恢复请求中包括：恢复ID(resumeID)、恢复原因(终端始发的信令、终端始发的数据、终端始发的异常数据或者终端终呼)和短消息完整性鉴权码(ShortResumeMAC-I)等信息。The RRC connection resumption request includes: resumption ID (resumeID), resumption reason (terminal-initiated signaling, terminal-initiated data, terminal-initiated abnormal data or terminal-terminated call) and short message integrity authentication code (ShortResumeMAC-I) and other information.

同时，UE可以在发送RRC连接恢复请求的同时发送上行数据(Uplink data)。At the same time, the UE may send uplink data while sending the RRC connection recovery request.

4、eNB可以向UE发送RRC连接释放消息(RRCConnectionRelease)。4. The eNB may send an RRC connection release message (RRCConnectionRelease) to the UE.

在RRC连接释放消息中可以包括：释放原因(releaseCause)、恢复ID(resumeID)、网络色码(Network Color Code，NCC)。The RRC connection release message may include: a release reason (releaseCause), a resume ID (resumeID), and a network color code (Network Color Code, NCC).

同时，eNB可以在发送RRC连接释放消息的同时发送下行数据(Downlink data)。At the same time, the eNB can send downlink data while sending the RRC connection release message.

可以理解的是，在eNB向UE发送RRC连接释放消息之后，UE例如可以进入非激活态(inactive)，因此对于上述介绍的SDT过程，其实UE并没有进入连接状态，就完成了小数据包的传输。It is understandable that after the eNB sends the RRC connection release message to the UE, the UE may enter an inactive state, for example. Therefore, for the SDT process described above, the UE does not actually enter a connected state, but completes the transmission of the small data packet.

可以理解的是，SDT过程在媒体介入控制层(media access control，MAC)层的体现，主要是影响了随机接入过程。按照原有的随机接入过程，消息1(Msg1)发送前导序列(preamble)，用于进行定时提前(timing advance，TA)测量和请求，消息2(Msg2)分配上行授权(UL grant)和TA，消息3(Msg3)进行上行公共控制信道(common control channel，CCCH)的传输，一般在这种情况下是RRC连接建立请求或者RRC连接恢复请求，消息4(Msg4)进行竞争解决。而在基于随机接入过程的SDT中，由于需要进行非伴随状态转换的数据传输，因此在Msg3里就直接发送用户数据了，以及在Msg4中可以发送下行数据。It is understandable that the manifestation of the SDT process in the media access control (MAC) layer mainly affects the random access process. According to the original random access process, message 1 (Msg1) sends a preamble sequence (preamble) for timing advance (TA) measurement and request, message 2 (Msg2) allocates uplink grant (UL grant) and TA, message 3 (Msg3) transmits the uplink common control channel (CCCH), which is generally an RRC connection establishment request or RRC connection recovery request in this case, and message 4 (Msg4) performs contention resolution. In the SDT based on the random access process, since data transmission without accompanying state transition is required, user data is directly sent in Msg3, and downlink data can be sent in Msg4.

在配置上，网络会在SIB2上配置一个当前网络允许传输的最大传输块大小(TB size)，其中，SIB为(系统信息块，system information block)，UE例如可以判断自己待传输的数据量，如果小于这个广播的最大TB size，则UE可以发起SDT传输；反之，UE使用正常的连接建立过程，进入连接态传输数据。In terms of configuration, the network will configure a maximum transmission block size (TB size) allowed by the current network on SIB2, where SIB stands for system information block. For example, the UE can determine the amount of data to be transmitted. If it is less than the maximum TB size broadcasted, the UE can initiate SDT transmission; otherwise, the UE uses the normal connection establishment process to enter the connected state to transmit data.

因此SDT对于处于非连接态(即空闲态或非激活态)的UE，可以通过简单的信令过程进行小数据的传输(例如水表的自动上报等等)，以避免造成RRC状态的改变和RRC信令的开销。Therefore, for UEs in a non-connected state (i.e., idle or inactive state), SDT can transmit small data (such as automatic reporting of water meters, etc.) through a simple signaling process to avoid causing changes in the RRC state and RRC signaling overhead.

上述结合图3介绍了基于随机接入过程的SDT过程，下面对基于预配置资源的SDT过程进行介绍，例如UE可以利用预配置上行资源(Preconfigured Uplink Resource,PUR)进行数据传输。The above describes the SDT process based on the random access process in combination with FIG. 3 . The following describes the SDT process based on preconfigured resources. For example, the UE can use preconfigured uplink resources (Preconfigured Uplink Resource, PUR) for data transmission.

其中，PUR是网络设备为终端设备配置的资源，其只在当前配置的小区内有效，即当UE检测到小区变化，并在新的小区发起随机接入时，UE需要释放原小区配置的PUR。Among them, PUR is a resource configured by the network device for the terminal device, which is only valid in the currently configured cell. That is, when the UE detects a cell change and initiates random access in a new cell, the UE needs to release the PUR configured in the original cell.

可以理解的是，基于预配置资源的SDT和上述介绍的基于随机接入的EDT过程类似，只是省去了发送随机接入前导码以获取TA和UL grant(上行授权)的过程。It can be understood that the SDT based on pre-configured resources is similar to the EDT process based on random access described above, except that the process of sending a random access preamble to obtain a TA and a UL grant (uplink authorization) is omitted.

可以结合图4理解利用PUR进行数据传输的过程，图4为本申请实施例提供的基于预配置资源的SDT过程的实现示意图。The process of using PUR for data transmission can be understood in conjunction with Figure 4, which is a schematic diagram of the implementation of the SDT process based on pre-configured resources provided in an embodiment of the present application.

参见图4，UE中具有有效的PUR资源，则UE可以直接向eNB发送RRC连接恢复请求，在RRC连接恢复请求中包括：恢复ID、恢复原因和短消息完整性鉴权码等信息。同时，UE可以在发送RRC连接恢复请求的同时发送上行数据。Referring to Figure 4, if the UE has valid PUR resources, the UE can directly send an RRC connection recovery request to the eNB, and the RRC connection recovery request includes information such as recovery ID, recovery reason, and short message integrity authentication code. At the same time, the UE can send uplink data while sending the RRC connection recovery request.

之后，eNB可以向UE发送RRC连接释放消息，在RRC连接释放消息中可以包括：释放原因、恢复ID、NCC。同时，eNB可以在发送RRC连接释放消息的同时发送下行数据以及定时提前命令(Time Advance Command，TAC)。Afterwards, the eNB may send an RRC connection release message to the UE, which may include: release reason, recovery ID, and NCC. At the same time, the eNB may send downlink data and a timing advance command (TAC) at the same time as sending the RRC connection release message.

因此，只要在UE中具有有效的PUR资源，UE就可以基于该PUR资源进行数据传输，UE利用PUR执行数据传输的一个重要前提是具有有效的定时提前量(Time Advance，TA)。Therefore, as long as there are valid PUR resources in the UE, the UE can perform data transmission based on the PUR resources. An important prerequisite for the UE to perform data transmission using the PUR is to have a valid timing advance (TA).

此处对TA进行简单介绍，上行传输的一个重要特征是不同UE在时频上正交多址接入(orthogonal multiple access)，即来自同一小区的不同UE的上行传输之间互不干扰。Here is a brief introduction to TA. An important feature of uplink transmission is orthogonal multiple access (ORMA) of different UEs in time and frequency, that is, uplink transmissions of different UEs from the same cell do not interfere with each other.

为了保证上行传输的正交性，避免小区内(intra-cell)干扰，eNodeB要求来自同一子帧但不同频域资源(不同的RB)的不同UE的信号到达eNodeB的时间基本上是对齐的。eNodeB只要在CP(Cyclic Prefix)范围内接收到UE所发送的上行数据，就能够正确地解码上行数据，因此，上行同步要求来自同一子帧的不同UE的信号到达eNodeB的时间都落在CP之内。In order to ensure the orthogonality of uplink transmission and avoid intra-cell interference, the eNodeB requires that the time when signals from different UEs in the same subframe but different frequency domain resources (different RBs) arrive at the eNodeB is basically aligned. As long as the eNodeB receives the uplink data sent by the UE within the CP (Cyclic Prefix) range, it can correctly decode the uplink data. Therefore, uplink synchronization requires that the time when signals from different UEs in the same subframe arrive at the eNodeB falls within the CP.

为了保证接收侧(eNodeB侧)的时间同步，LTE提出了定时提前(Timing Advance)的机制。In order to ensure time synchronization on the receiving side (eNodeB side), LTE proposes a timing advance mechanism.

在UE侧看来，TA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负偏移(negative offset)。eNodeB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eNodeB的时间。对于离eNodeB较远的UE，由于有较大的传输延迟，就要比离eNodeB较近的UE提前发送上行数据。From the UE side, TA is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe. The eNodeB can control the time when the uplink signal from different UEs reaches the eNodeB by properly controlling the offset of each UE. For UEs farther away from the eNodeB, due to the larger transmission delay, they need to send uplink data earlier than UEs closer to the eNodeB.

具体的，UE可以从网络设备侧接收TAC，其中，TCA是定时提前命令，eNB通过发送TAC给UE，告知UE定时提前量(TA)的时间大小，其中，TA是指定时提前量，一般用于UE的上行传输，至为了将UE上行包在希望的时间到达eNB，预估由于距离引起的射频传输实验，提前相应时间发出数据包。Specifically, the UE can receive TAC from the network equipment side, where TCA is a timing advance command. The eNB sends TAC to the UE to inform the UE of the time size of the timing advance (TA), where TA refers to the timing advance, which is generally used for the UE's uplink transmission. In order to ensure that the UE uplink packet arrives at the eNB at the desired time, the RF transmission experiment caused by the distance is estimated and the data packet is sent in advance by a corresponding time.

因此UE可以基于TAC调整上行数据的发送时间，目的是为了消除UE之间不同的传输时延，使得不同UE的上行信号到达eNB的时间对齐，保证上行正交性，降低小区内干扰。Therefore, the UE can adjust the sending time of uplink data based on TAC in order to eliminate the different transmission delays between UEs, align the time at which uplink signals from different UEs arrive at the eNB, ensure uplink orthogonality, and reduce interference within the cell.

基于上述介绍可以确定的是，UE利用PUR执行数据传输的一个重要前提是具有有效的TA，根据协议规定，判断TA是否有效的条件包含以下中的至少一个：Based on the above introduction, it can be determined that an important prerequisite for the UE to perform data transmission using the PUR is to have a valid TA. According to the protocol, the conditions for determining whether the TA is valid include at least one of the following:

-TA定时器(Timing Advance timer，TAT)处于运行状态；和/或-TA timer (Timing Advance timer, TAT) is running; and/or

-参考信号接收功率(Reference Signal Receiving Power，RSRP)变化(增大或减小)不大于/小于设定的阈值；- The change (increase or decrease) of the reference signal receiving power (RSRP) is not greater than/less than a set threshold;

其中，TAT的配置作为PUR配置的一部分，可以通过RRCConnectionRelease消息下发给UE。The TAT configuration, as a part of the PUR configuration, may be sent to the UE via the RRCConnectionRelease message.

基于上述介绍可以确定的是，处于RRC_INACTIVE态的UE可以执行SDT，在一种可能的实现方式中，UE执行SDT是需要满足一定的触发条件的。具体的，UE在满足以下条件时才触发SDT：Based on the above introduction, it can be determined that a UE in the RRC_INACTIVE state can execute SDT. In a possible implementation, the UE needs to meet certain triggering conditions to execute SDT. Specifically, the UE triggers SDT only when the following conditions are met:

-待传输数据来自可以触发SDT的无线承载，例如信令承载(Signalling Radio Bearer，SRB)，数据承载(Data Radio Bearer，DRB)；-The data to be transmitted comes from a radio bearer that can trigger SDT, such as a signaling bearer (SRB) or a data bearer (DRB);

-待传输数据量小于网络设备预配置数据量门限；-The amount of data to be transmitted is less than the pre-configured data volume threshold of the network device;

-下行RSRP测量结果大于网络设备预配置RSRP门限；-The downlink RSRP measurement result is greater than the RSRP threshold pre-configured by the network device;

-存在有效的SDT资源，例如，RA-SDT资源和/或CG-SDT资源。- There are valid SDT resources, for example, RA-SDT resources and/or CG-SDT resources.

其中，RA-SDT资源就是基于随机接入过程执行SDT时的资源，CG-SDT资源就是基于预配置资源执行SDT时的资源。Among them, RA-SDT resources are resources when SDT is performed based on a random access process, and CG-SDT resources are resources when SDT is performed based on pre-configured resources.

同时还需要说明的是，若终端设备同时被配置的RA-SDT资源和CG-SDT资源，则终端设备优先判断CG-SDT资源是否有效，下面对判断CG-SDT资源是否有效的条件进行说明，判断条件包括：It should also be noted that if the terminal device is configured with both RA-SDT resources and CG-SDT resources, the terminal device will first determine whether the CG-SDT resources are valid. The following describes the conditions for determining whether the CG-SDT resources are valid. The determination conditions include:

-存在有效的TA，其判断方式包括：SDT-TAT处于运行状态，和/或，RSRP变化量没有超过预配置门限；- There is a valid TA, which is determined by: SDT-TAT is in operation, and/or the RSRP change does not exceed a preconfigured threshold;

-终端设备所选载波(NUL或SUL)上存在CG-SDT资源；-CG-SDT resources exist on the carrier (NUL or SUL) selected by the terminal device;

-终端设备所选SSB上存在CG-SDT资源；-CG-SDT resources exist on the SSB selected by the terminal device;

若终端设备确定上述介绍的判断条件不能满足，则终端设备可以确定当前不存在可用的CG-SDT资源，则终端设备可以进一步判断RA-SDT资源是否有效，若有效，则终端设备可以发起RA-SDT过程，否则，发起RRC resume(恢复)流程。If the terminal device determines that the judgment conditions introduced above cannot be met, the terminal device can determine that there are currently no available CG-SDT resources, and the terminal device can further determine whether the RA-SDT resources are valid. If valid, the terminal device can initiate the RA-SDT process, otherwise, initiate the RRC resume (recovery) process.

同时还需要说明的是，在SDT过程中，若终端设备确定发生以下事件，则认为SDT失败，并进入RRC_IDLE态：It should also be noted that during the SDT process, if the terminal device determines that the following events have occurred, it is considered that the SDT has failed and enters the RRC_IDLE state:

-在SDT过程中发生了小区重选；-Cell reselection occurred during the SDT process;

-SDT故障检测定时器(failure detection timer)超时-SDT failure detection timer timeout

-无线链路层控制层(Radio Link Control，RLC)达到最大传输次数，即检测到RLC失败(failure)。- The Radio Link Control (RLC) layer reaches the maximum number of transmissions, i.e., an RLC failure is detected.

上述介绍了小数据传输的相关内容，下面再对SON(Self-Organizing Network，自组织网络)进行介绍。The above introduces the relevant contents of small data transmission. Next, SON (Self-Organizing Network) will be introduced.

SON(Self-Organizing Network，自组织网络)是伴随网络的发展而引出的一套完整的网络理念和规范。SON的主要思路是实现无线网络的一些自主功能，以减少人工参与，降低运营成本。具体的，SON可以根据终端上报的信息优化网络参数配置，其信令流程可以如图5所示，图5为本申请实施例提供的自组织网络的信令流程图。SON (Self-Organizing Network) is a complete set of network concepts and specifications that have emerged with the development of the network. The main idea of SON is to implement some autonomous functions of the wireless network to reduce manual participation and reduce operating costs. Specifically, SON can optimize network parameter configuration based on information reported by the terminal, and its signaling process can be shown in Figure 5, which is a signaling flow chart of the self-organizing network provided in an embodiment of the present application.

如图5所示：As shown in Figure 5:

1、网络设备向处于连接态的UE发送上报信息，其中，上报信息例如可以为UEInformationRequest，在上报信息UEInformationRequest中可以包括网络设备需要终端设备上报的信息类型，例如，ra-ReportReq(随机接入报告),rlf-ReportReq(无线链路失败报告)等，其中每一个参数都设置有各自对应的参数域。以ra-ReportRequest为例，当该参数的参数域设置为true时，表示网络设备需要终端设备上报随机结果过程相关的信息。1. The network device sends reporting information to the UE in the connected state, where the reporting information can be, for example, UEInformationRequest, and the reporting information UEInformationRequest can include the type of information that the network device needs the terminal device to report, for example, ra-ReportReq (random access report), rlf-ReportReq (radio link failure report), etc., where each parameter is set with its own corresponding parameter domain. Taking ra-ReportRequest as an example, when the parameter domain of this parameter is set to true, it means that the network device needs the terminal device to report information related to the random result process.

2、UE根据网络设备指示，通过响应消息UEInformationResponse将相应类型的报告反馈给网络设备。2. According to the instructions of the network device, the UE feeds back the corresponding type of report to the network device through the response message UEInformationResponse.

可以理解的是，终端设备针对不同的事件，可以触发记录上述各个类型的报告。以ra-Report为例，UE在每次成功完成随机接入后，例如可以将随机接入过程信息存储在UE维护的VarRA-Report列表中。当收到网络侧发送的上述介绍的上报请求时，便将记录的随机接入报告上报给网络。It is understandable that the terminal device can trigger the recording of the above-mentioned various types of reports for different events. Taking ra-Report as an example, after each successful completion of random access, the UE can, for example, store the random access process information in the VarRA-Report list maintained by the UE. When the above-mentioned reporting request sent by the network side is received, the recorded random access report is reported to the network.

基于上述介绍的相关内容，下面对相关技术中存在的问题进行说明：Based on the above-mentioned related contents, the problems existing in the related technologies are described below:

在执行SDT时，终端设备通常需要选择载波和波束，若终端设备所选择的载波和波束上存在网络设备配置的CG资源，则终端设备就可以执行SDT过程。然而，在网络设备所配置的CG资源不合适的时候，就会出现终端设备所选择的载波和波束上不存在CG资源，进而会导致SDT过程的成功率较低。When performing SDT, the terminal device usually needs to select a carrier and a beam. If the carrier and beam selected by the terminal device have CG resources configured by the network device, the terminal device can perform the SDT process. However, when the CG resources configured by the network device are not appropriate, there will be no CG resources on the carrier and beam selected by the terminal device, which will result in a low success rate of the SDT process.

基于现有技术中的问题，本申请提出了如下技术构思：因为小数据传输是R17引入的新特性，因此R17及之前的SON框架不支持针对SDT的问题上报。因此，为了优化SDT过程，在后续版本的SON研究中，需要添加SDT过程记录及上报，以使得网络设备可以根据终端设备上报的SDT相关的信息，对SDT的配置进行优化，以提升SDT过程的成功率。Based on the problems in the prior art, this application proposes the following technical ideas: Because small data transmission is a new feature introduced in R17, the SON framework of R17 and earlier does not support problem reporting for SDT. Therefore, in order to optimize the SDT process, in the subsequent versions of SON research, it is necessary to add SDT process records and reports, so that the network equipment can optimize the SDT configuration according to the SDT-related information reported by the terminal equipment, so as to improve the success rate of the SDT process.

在上述介绍内容的基础上，下面结合具体的实施例对本申请提供的通信方法进行介绍，首先结合图6进行说明，图6为本申请实施例提供的通信方法的流程图。Based on the above introduction, the communication method provided in the present application is introduced in combination with specific embodiments. First, it is explained in combination with Figure 6, which is a flow chart of the communication method provided in the embodiment of the present application.

如图6所示，该方法包括：As shown in FIG6 , the method includes:

S601、终端设备向网络设备发送第一消息，其中，第一消息中包括记录小数据传输的第一信息。S601. A terminal device sends a first message to a network device, wherein the first message includes first information recording small data transmission.

在本实施例中，终端设备可以向网络设备发送第一信息，其中的第一信息中包括了记录小数据传输的第一信息，也就是说终端设备可以向网络设备上报小数据传输相关的第一信息，以使得网络设备可以对后续的SDT配置进行优化。In this embodiment, the terminal device can send first information to the network device, wherein the first information includes first information recording small data transmission, that is, the terminal device can report first information related to small data transmission to the network device so that the network device can optimize subsequent SDT configuration.

在一种可能的实现方式中，终端设备可以是自行的向网络设备发送第一信息，比如说可以以预设时长为周期进行定时的上报，或者还可以在每次小数据传输结束时，就向网络设备上报第一信息。In a possible implementation, the terminal device may send the first information to the network device on its own, for example, it may report periodically with a preset time period, or it may report the first information to the network device at the end of each small data transmission.

在另一种可能的实现方式中，终端设备还可以在接收到网络设备发送的请求消息时，向网络设备发送第一信息，其中在网络设备发送的请求消息中比如说就可以包括第一信息的类型，以指示终端设备向网络设备发送记录小数据传输的第一信息。In another possible implementation, the terminal device may also send first information to the network device when receiving a request message sent by the network device, wherein the request message sent by the network device may include, for example, the type of the first information to instruct the terminal device to send first information recording small data transmission to the network device.

以及，终端设备还可以将记录的第一信息存储在本地，以在后续过程中向网络设备发送。Furthermore, the terminal device may also store the recorded first information locally to send it to the network device in a subsequent process.

本申请实施例提供的通信方法，包括：终端设备向网络设备发送第一消息，其中，第一消息中包括记录小数据传输的第一信息。通过终端设备向网络设备上报包括小数据传输的第一信息的第一消息，以使得网络设备可以根据第一消息对SDT的配置进行优化，进而可以有效的提升SDT过程的成功率。The communication method provided in the embodiment of the present application includes: a terminal device sends a first message to a network device, wherein the first message includes first information recording small data transmission. The terminal device reports the first message including the first information of small data transmission to the network device, so that the network device can optimize the configuration of SDT according to the first message, thereby effectively improving the success rate of the SDT process.

在上述实施例的基础上，进一步需要说明的是，终端设备要向网络设备发送第一消息，则终端设备需要首先记录小数据传输的第一信息。在一种可能的实现方式中，终端设备可以在满足以下预设事件至少之一时记录第一信息：Based on the above embodiment, it is further necessary to explain that if the terminal device wants to send a first message to the network device, the terminal device needs to first record the first information of the small data transmission. In a possible implementation, the terminal device can record the first information when at least one of the following preset events is met:

第一类型事件，第一类型事件用于指示终端设备所选择的资源上未配置CG资源；The first type of event is used to indicate that the CG resource is not configured on the resource selected by the terminal device;

第二类型事件，第二类型事件用于指示终端设备所选择的资源上配置有CG资源，并且在小数据传输的过程中，CG资源无效。The second type of event is used to indicate that CG resources are configured on the resources selected by the terminal device, and that the CG resources are invalid during the small data transmission process.

其中，终端设备所选择的资源可以包括载波和波束，可以理解的是，在上行数据到达的时候，终端设备为了进行上行数据的传输，需要进行载波和波束的选择。上述介绍的第一类型事件是指，终端设备所选择的资源上未配置CG资源，以及上述介绍的第二类型事件是指，终端设备所选择的资源上配置有CG资源，那么终端设备就会执行小数据传输，但是在后续的小数据传输过程中，CG资源无效。Among them, the resources selected by the terminal device may include carriers and beams. It can be understood that when uplink data arrives, the terminal device needs to select carriers and beams in order to transmit uplink data. The first type of event introduced above refers to the case where CG resources are not configured on the resources selected by the terminal device, and the second type of event introduced above refers to the case where CG resources are configured on the resources selected by the terminal device. In this case, the terminal device will perform small data transmission, but in the subsequent small data transmission process, the CG resources are invalid.

可以理解的是，无论是上述的第一类型事件还是第二类型事件，都会导致终端设备没有可用的CG资源来实现基于预配置资源的SDT过程，本实施例中的CG资源就是网络设备为终端设备预配置的用于执行SDT过程的资源。那么在上述的第一类型事件和/或第二类型事件发生的时候，就表示有可能是因为网络设备配置的CG资源不合适，从而导致终端设备没有可用的CG-SDT资源，则终端设备可以对小数据传输的第一信息进行记录，并上报给网络设备，以使得网络设备优化CG-SDT资源配置。It is understandable that, whether it is the first type of event or the second type of event mentioned above, it will cause the terminal device to have no available CG resources to implement the SDT process based on pre-configured resources. The CG resources in this embodiment are the resources pre-configured by the network device for the terminal device to execute the SDT process. Then when the first type of event and/or the second type of event mentioned above occurs, it means that it may be because the CG resources configured by the network device are not appropriate, resulting in the terminal device having no available CG-SDT resources. The terminal device can record the first information of the small data transmission and report it to the network device so that the network device optimizes the CG-SDT resource configuration.

下面对第一类型事件和第二类型事件所对应的情况分别进行说明。The situations corresponding to the first type of events and the second type of events are described below respectively.

例如可以首先结合图7至图10对第一类型事件对应的情况进行说明，图7为本申请实施例提供的通信方法的流程图二，图8为本申请实施例提供的终端设备选择资源的实现示意图一，图9为本申请实施例提供的终端设备选择资源的实现示意图二，图10为本申请实施例提供的终端设备选择资源的实现示意图三。For example, the situation corresponding to the first type of event can be first described in combination with Figures 7 to 10, Figure 7 is a second flowchart of the communication method provided in an embodiment of the present application, Figure 8 is a first schematic diagram of the implementation of resource selection by a terminal device provided in an embodiment of the present application, Figure 9 is a second schematic diagram of the implementation of resource selection by a terminal device provided in an embodiment of the present application, and Figure 10 is a third schematic diagram of the implementation of resource selection by a terminal device provided in an embodiment of the present application.

如图7所示，该方法包括：As shown in FIG. 7 , the method includes:

S701、终端设备接收网络设备发送的RRC连接释放消息，并根据RRC连接释放消息切换至RRC非激活态。S701. The terminal device receives an RRC connection release message sent by a network device, and switches to an RRC inactive state according to the RRC connection release message.

在本实施例中，终端设备例如可以接收网络侧发送的RRC连接释放消息，并与该RRC连接释放消息进入RRC非激活态。那么可以理解的是，本实施例中对于小数据传输的第一信息的记录，就是终端设备在RRC非激活态下确定的。In this embodiment, the terminal device may receive an RRC connection release message sent by the network side, and enter the RRC inactive state with the RRC connection release message. It can be understood that the recording of the first information of the small data transmission in this embodiment is determined by the terminal device in the RRC inactive state.

S702、终端设备确定存在待发送的小数据。S702: The terminal device determines that there is small data to be sent.

当有上行数据到达的时候，终端设备可以确定当前存在待发送的数据，同时因为当前终端设备处于RRC非激活态，则终端设备例如可以判断当前是否满足上述介绍的发起SDT过程的条件，进而确定后续是否执行SDT过程。When uplink data arrives, the terminal device can determine that there is data to be sent. At the same time, because the terminal device is currently in an RRC inactive state, the terminal device can, for example, determine whether the conditions for initiating the SDT process described above are currently met, and then determine whether to execute the SDT process subsequently.

在一种可能的实现方式中，若终端设备确定待传输数据量小于网络设备预配置数据量门限，则终端设备可以确定存在待发送的小数据，以及针对上述介绍的触发SDT的其余条件，终端设备同样需要判断是否满足。In one possible implementation, if the terminal device determines that the amount of data to be transmitted is less than the pre-configured data volume threshold of the network device, the terminal device can determine that there is small data to be sent, and the terminal device also needs to determine whether the remaining conditions for triggering SDT introduced above are met.

基于上述介绍可以确定的是，在触发SDT的条件中，存在一个条件是“存在有效的SDT资源”，以及基于上述介绍可以确定的是，若终端设备同时被配置的RA-SDT资源和CG-SDT资源，则终端设备优先判断CG-SDT资源是否有效。Based on the above introduction, it can be determined that among the conditions for triggering SDT, there is a condition that "there are valid SDT resources", and based on the above introduction, it can be determined that if the terminal device is configured with RA-SDT resources and CG-SDT resources at the same time, the terminal device will give priority to determining whether the CG-SDT resources are valid.

其中，CG资源为网络设备配置的，以及在本实施例中，CG资源是配置在第一载波和至少一个第一波束上的，其中第一载波可以为NUL波束，或者还可以为SUL波束，本实施例对此不做限制。Among them, the CG resources are configured by the network device, and in this embodiment, the CG resources are configured on the first carrier and at least one first beam, wherein the first carrier can be a NUL beam, or can also be a SUL beam, and this embodiment does not impose any restrictions on this.

S703、终端设备在确定满足第一类型事件时，记录小数据传输的第一上报信息。S703: When determining that the first type of event is satisfied, the terminal device records first reporting information of small data transmission.

在一种可能的情况下，若终端设备当前确定无可用的CG-SDT资源，则可以在确定满足第一类型事件时，记录小数据传输的第一信息，本实施例中的第一类型事件例如可以包括如下中的至少一种：In one possible case, if the terminal device currently determines that there are no available CG-SDT resources, the first information of the small data transmission may be recorded when it is determined that the first type of event is met. The first type of event in this embodiment may include at least one of the following:

事件一：终端设备所选择的载波与第一载波相同，终端设备选择的波束与第一波束不同。Event 1: the carrier selected by the terminal device is the same as the first carrier, and the beam selected by the terminal device is different from the first beam.

事件二：终端设备所选择的载波为NUL载波，第一载波为SUL载波。Event 2: the carrier selected by the terminal device is the NUL carrier, and the first carrier is the SUL carrier.

事件三：终端设备所选择的载波为SUL载波，第一载波为NUL载波。Event three: the carrier selected by the terminal device is the SUL carrier, and the first carrier is the NUL carrier.

可以理解的是，终端设备在进行数据传输的时候，通常需要进行载波以及波束的选择，本实施例中的波束例如可以用SSB来表示。其中，在终端设备进行资源选择的时候，例如是首先根据载波选择门限进行载波的选择，其次根据SSB选择门限进行SSB的选择。It is understandable that when the terminal device performs data transmission, it usually needs to select a carrier and a beam. The beam in this embodiment can be represented by SSB, for example. When the terminal device performs resource selection, for example, the carrier is first selected according to the carrier selection threshold, and then the SSB is selected according to the SSB selection threshold.

则有可能出现，终端设备所选择的载波和配置了CG资源的第一载波相同，但是终端设备所选择的波束和配置了CG资源的第一波束不同。也就是上述的事件一，例如可以参照图8进行理解。It is possible that the carrier selected by the terminal device is the same as the first carrier configured with CG resources, but the beam selected by the terminal device is different from the first beam configured with CG resources. That is, the above event 1 can be understood with reference to FIG8, for example.

例如用SSB来表示波束，如图8所示，比如说网络设备在SSB1和SSB2上配置有CG资源，但是终端设备基于SSB选择门限，确定满足门限的SSB是SSB3和SSB4，则就出现了终端设备所选择的波束与配置有CG资源的第一波束不同的情况，也就是上述介绍的事件一。For example, SSB is used to represent the beam, as shown in Figure 8. For example, the network device is configured with CG resources on SSB1 and SSB2, but the terminal device selects the threshold based on the SSB and determines that the SSBs that meet the threshold are SSB3 and SSB4. In this case, the beam selected by the terminal device is different from the first beam configured with CG resources, which is the event one described above.

对于事件一，导致终端设备所选SSB上没有可用的CG资源的原因，可能是因为网络设备在配置CG资源的时候未考虑终端设备的移动性，比如终端设备在连接态的时候位于波束SSB1和SSB23的覆盖下，当终端设备进入inactive态时，网络设备只在SSB1和SSB2上关联了CG资源。For event one, the reason why there are no available CG resources on the SSB selected by the terminal device may be that the network device did not consider the mobility of the terminal device when configuring CG resources. For example, when the terminal device is in the connected state, it is located under the coverage of beams SSB1 and SSB23. When the terminal device enters the inactive state, the network device only associates CG resources on SSB1 and SSB2.

但是由于终端的移动性，当SDT业务触发的时候，终端设备确定满足门限的SSB是SSB3和SSB4,所以才会导致终端设备无可用的CG资源。这样一来，不仅浪费了网络设备为终端设备在SSB1和SSB2上关联的CG资源，还有可能导致SDT失败。However, due to the mobility of the terminal, when the SDT service is triggered, the terminal device determines that the SSBs that meet the threshold are SSB3 and SSB4, which results in the terminal device having no available CG resources. This not only wastes the CG resources that the network device associates with the terminal device on SSB1 and SSB2, but may also cause SDT failure.

上述是针对事件一的说明，同时，终端设备在进行资源选择之后，还有可能出现，终端设备所选择的载波和配置了CG资源的第一载波不同，例如可以参照图9和图10进行理解。The above is an explanation of event one. At the same time, after the terminal device selects resources, it is possible that the carrier selected by the terminal device is different from the first carrier configured with CG resources. For example, this can be understood by referring to Figures 9 and 10.

如图9所示，比如说网络设备在SUL上配置有CG资源，但是终端设备基于载波选择门限，确定满足门限的载波是NUL，则就出现了终端设备所选择的载波与配置有CG资源的第一载波不同的情况，也就是上述介绍的事件二。As shown in Figure 9, for example, the network device is configured with CG resources on the SUL, but the terminal device determines that the carrier that meets the carrier selection threshold is NUL based on the carrier selection threshold. In this case, the carrier selected by the terminal device is different from the first carrier configured with CG resources, which is the event 2 introduced above.

以及，如图10所示，比如说网络设备在NUL上配置有CG资源，但是终端设备基于载波选择门限，确定满足门限的载波是SUL，则同样会出现了终端设备所选择的载波与配置有CG资源的第一载波不同的情况，也就是上述介绍的事件三。Also, as shown in Figure 10, for example, the network device is configured with CG resources on NUL, but the terminal device determines that the carrier that meets the threshold is SUL based on the carrier selection threshold. Then, the carrier selected by the terminal device may be different from the first carrier configured with CG resources, which is the event three introduced above.

对于事件二和事件三，导致终端设备所选载波上没有可用的CG资源的原因，有可能是因为网络设备在不合适的载波上配置了CG资源，进而导致终端设备在执行SDT过程的时候，虽然网络设备配置了CG资源，但是由于配置的载波不合适，或者由于NUL/SUL选择的门限值配置的不合理，导致终端设备无可用的CG资源。这样一来，不仅浪费了网络设备为终端设备在另一个载波上关联的CG资源，还有可能导致SDT失败。For events 2 and 3, the reason why there are no available CG resources on the carrier selected by the terminal device may be that the network device configures CG resources on an inappropriate carrier, which results in the terminal device having no available CG resources when executing the SDT process, although the network device configures CG resources, due to the inappropriate configured carrier or the unreasonable configuration of the threshold value selected by NUL/SUL. In this way, not only the CG resources associated by the network device for the terminal device on another carrier are wasted, but also the SDT failure may occur.

因此终端设备在确定满足上述介绍的第一类型事件中的任一种的时候，可以记录小数据传输的第一信息，本实施例中针对第一类型事件的第一信息具体可以为第一上报信息。Therefore, when the terminal device determines that any one of the first type events described above is met, the terminal device can record the first information of the small data transmission. In this embodiment, the first information for the first type event can specifically be the first reporting information.

在一种可能的实现方式中，第一上报信息可以包括如下中的至少一种：In a possible implementation manner, the first reporting information may include at least one of the following:

终端设备选择的资源的资源信息；其中，资源信息可以包括如下中的至少一种：终端设备选择的载波；终端设备选择的波束；载波选择对应的第一阈值；波束选择对应的第二阈值。Resource information of resources selected by the terminal device; wherein the resource information may include at least one of the following: a carrier selected by the terminal device; a beam selected by the terminal device; a first threshold corresponding to the carrier selection; a second threshold corresponding to the beam selection.

终端设备的设备信息；其中，设备信息可以包括如下中的至少一种：终端设备进行资源选择时所在的位置；终端设备进行资源选择的时间。Device information of the terminal device; wherein the device information may include at least one of the following: the location of the terminal device when selecting resources; the time when the terminal device selects resources.

终端设备的测量结果；其中，测量结果可以包括如下中的至少一种：测量结果包括如下至少一种：下行参考信号的RSRP；下行参考信号的参考信号接收质量(Reference Signal Received Quality，RSRQ)；下行参考信号的信号与干扰加噪声比信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)。The measurement result of the terminal device; wherein the measurement result may include at least one of the following: the measurement result includes at least one of the following: RSRP of the downlink reference signal; Reference Signal Received Quality (RSRQ) of the downlink reference signal; Signal to Interference plus Noise Ratio (SINR) of the downlink reference signal.

终端设备在选择波束时的SSB测量结果；The SSB measurement results of the terminal device when selecting a beam;

第一数据的到达时间，其中第一数据为终端设备待传输的小数据；Arrival time of first data, where the first data is small data to be transmitted by the terminal device;

终端设备进入非激活态的时间，或者说RRC release消息发送/接收时间。The time when the terminal device enters the inactive state, or the time when the RRC release message is sent/received.

在实际实现过程中，第一上报信息的具体实现还可以根据实际需求进行选择和设置，在一种可能的实现方式中，凡是与小数据传输相关的信息均可以作为本实施例中的第一上报信息。In the actual implementation process, the specific implementation of the first reporting information can also be selected and set according to actual needs. In a possible implementation, all information related to small data transmission can be used as the first reporting information in this embodiment.

S704、终端设备向网络设备发送第一消息，其中，第一消息中包括第一上报信息。S704. The terminal device sends a first message to the network device, where the first message includes first reporting information.

终端设备在确定小数据传输的第一上报信息之后，就可以向网络设备发送包括第一上报信息的第一消息，其实现方式与上述介绍的类似，此处不再赘述。After determining the first reporting information of the small data transmission, the terminal device can send a first message including the first reporting information to the network device. The implementation method is similar to that described above and will not be repeated here.

同时还需要说明的是，针对上述介绍的事件一，通过上报终端设备在SDT业务触发的时候对于SSB的测量结果，以及触发SDT的时间等参数，可以辅助网络侧后续在配置CG资源的时候考虑终端设备的移动性因素。It should also be noted that for event one introduced above, by reporting the terminal device's measurement results of SSB when the SDT service is triggered, as well as parameters such as the time of triggering SDT, the network side can be assisted in considering the mobility factors of the terminal device when configuring CG resources later.

以及，针对上述介绍的事件二，通过上报终端设备在SDT业务触发的时候对于NUL/SUL的测量结果，以及触发SDT的时间等参数，可用辅助网络侧后续在配置CG资源的时候考虑终端的载波选择。In addition, for the second event introduced above, by reporting the measurement results of NUL/SUL of the terminal device when the SDT service is triggered, as well as parameters such as the time of triggering SDT, the auxiliary network side can consider the carrier selection of the terminal when configuring CG resources later.

因此本实施例中，在终端设备确定没有可用的CG资源并且确定发生第一类型事件的时候，记录小数据传输的第一信息，并向网络设备上报第一消息，从而可以帮助网络设备优化CG资源的配置，以避免由于CG资源配置不合理所导致的SDT失败。Therefore, in this embodiment, when the terminal device determines that there are no available CG resources and determines that a first type of event has occurred, the first information of the small data transmission is recorded and a first message is reported to the network device, which can help the network device optimize the configuration of CG resources to avoid SDT failure caused by unreasonable CG resource configuration.

上述是针对第一类型事件的相关实现的介绍，下面例如可以结合图11至图12对第二类型事件对应的情况进行说明，图11为本申请实施例提供的通信方法的流程图三，图12为本申请实施例提供的终端设备选择资源的实现示意图四。The above is an introduction to the relevant implementation of the first type of event. The following, for example, can be combined with Figures 11 to 12 to illustrate the corresponding situation of the second type of event. Figure 11 is a flowchart three of the communication method provided in an embodiment of the present application, and Figure 12 is a schematic diagram four of the implementation of the terminal device selecting resources provided in an embodiment of the present application.

如图11所示，该方法包括：As shown in FIG. 11 , the method includes:

S1101、终端设备接收网络设备发送的RRC连接释放消息，并根据RRC连接释放消息切换至RRC非激活态。S1101. The terminal device receives an RRC connection release message sent by a network device, and switches to an RRC inactive state according to the RRC connection release message.

其中，S1101的实现方式与S701的实现方式类似。The implementation of S1101 is similar to that of S701.

S1102、终端设备确定存在待发送的小数据。S1102: The terminal device determines that there is small data to be sent.

在一种可能的情况下，若终端设备当前确定当前存在可用的CG-SDT资源用于SDT过程，并且其余的SDT触发条件也满足，则终端设备可以触发SDT过程对上行数据进行传输。In one possible case, if the terminal device currently determines that there are available CG-SDT resources for the SDT process and the remaining SDT triggering conditions are also met, the terminal device can trigger the SDT process to transmit uplink data.

需要强调，此处与上述实施例不同的地方在于，上述实施例中终端设备确定无可用的CG资源，因此终端设备并没有成功发起基于预配置资源的SDT过程，而在本实施例中，终端设备确定当前存在可用的CG资源用于执行SDT过程，并且触发SDT过程的其余条件也满足，则终端设备可以触发基于预配置资源的SDT过程。It should be emphasized that the difference here from the above-mentioned embodiment is that in the above-mentioned embodiment, the terminal device determines that there are no available CG resources, and therefore the terminal device does not successfully initiate the SDT process based on pre-configured resources. In the present embodiment, the terminal device determines that there are currently available CG resources for executing the SDT process, and the other conditions for triggering the SDT process are also met, then the terminal device can trigger the SDT process based on pre-configured resources.

S1103、终端设备在确定满足第二类型事件时，记录小数据传输的第二上报信息。S1103: When determining that the second type of event is satisfied, the terminal device records second reporting information of the small data transmission.

在终端设备执行SDT的过程中，若确定满足第二类型事件，则终端设备可以记录小数据传输的第一信息，本实施例中的第二类型事件例如可以包括如下中的至少一种：During the process of executing SDT by the terminal device, if it is determined that the second type of event is satisfied, the terminal device may record the first information of the small data transmission. The second type of event in this embodiment may include, for example, at least one of the following:

事件一：在传输第一小数据时，终端设备所选择的资源上配置有CG资源，在传输第二小数据时，终端设备所选择的资源上未配置CG资源，其中，第二小数据的传输时间晚于第一小数据的传输时间；Event 1: When transmitting the first small data, the resources selected by the terminal device are configured with CG resources, and when transmitting the second small data, the resources selected by the terminal device are not configured with CG resources, wherein the transmission time of the second small data is later than the transmission time of the first small data;

事件二：在终端设备执行小数据传输的过程中，终端设备所选择的资源上所配置的CG资源被释放。Event 2: During the process of the terminal device performing small data transmission, the CG resources configured on the resources selected by the terminal device are released.

可以理解的是，终端设备在进行数据传输的时候，通常需要进行载波以及波束的选择，本实施例中终端设备确定当前存在可用的CG资源，则可以确定终端设备所选择的载波和波束上存在CG资源，具体的，就是说终端设备所选择的载波和配置了CG资源的第一载波相同，以及终端设备所选择的波束和配置了CG资源的第一波束相同。It can be understood that when the terminal device is performing data transmission, it usually needs to select a carrier and a beam. In this embodiment, the terminal device determines that there are currently available CG resources, then it can be determined that there are CG resources on the carrier and beam selected by the terminal device. Specifically, it means that the carrier selected by the terminal device is the same as the first carrier configured with CG resources, and the beam selected by the terminal device is the same as the first beam configured with CG resources.

同时，可以理解的是，针对一次SDT过程，通常是在接收到网络设备的指示信息，或者满足相应的条件的时候，这一次SDT过程才会结束，否则的话，一次SDT过程会持续进行。在一次SDT过程中，可能会对多个小数据进行传输。At the same time, it is understandable that for an SDT process, usually when the instruction information of the network device is received or the corresponding conditions are met, the SDT process will end, otherwise, the SDT process will continue. In an SDT process, multiple small data may be transmitted.

那么就有可能出现，终端设备在传输第一小数据的时候，选择的资源上配置有CG资源，但是在传输第一小数据之后的第二小数据的时候，终端设备所选择的资源上未配置CG资源，其中第二小数据和第一小数据是在一次SDT过程中传输的数据，并且第二小数据的传输时间晚于第一小数据的传输时间。It is possible that when the terminal device transmits the first small data, the selected resources are configured with CG resources, but when the terminal device transmits the second small data after the first small data, the selected resources are not configured with CG resources, wherein the second small data and the first small data are data transmitted in one SDT process, and the transmission time of the second small data is later than the transmission time of the first small data.

此处介绍的，在传输第二小数据的时候，终端设备所选择的资源上未配置CG资源，具体可以为上述介绍的终端设备选择的波束与第一波束不同；和/或，终端设备所选择的载波与第一载波不同。As introduced here, when transmitting the second small data, CG resources are not configured on the resources selected by the terminal device. Specifically, the beam selected by the terminal device introduced above is different from the first beam; and/or the carrier selected by the terminal device is different from the first carrier.

当前介绍的情况也就是本实施例中的事件一，例如可以参照图12进行理解。The situation currently introduced is event 1 in this embodiment, which can be understood by referring to FIG. 12 , for example.

例如用SSB来表示波束，如图12所示，比如说网络设备在SSB1和SSB2上配置有CG资源，在SDT业务刚触发的时候，终端设备例如基于SSB选择门限，确定满足门限的SSB是SSB1和SSB2，并且在SSB1和SSB2上关联的CG资源上进行SDT传输。For example, SSB is used to represent the beam, as shown in Figure 12. For example, the network device is configured with CG resources on SSB1 and SSB2. When the SDT service is just triggered, the terminal device, for example, based on the SSB selection threshold, determines that the SSBs that meet the threshold are SSB1 and SSB2, and performs SDT transmission on the CG resources associated with SSB1 and SSB2.

但是在后续的传输中，例如终端设备基于SSB选择门限，确定满足门限的SSB是SSB3和SSB4，则就出现了终端设备所选择的资源上未配置CG资源，也就是本实施例中介绍的事件一。当前图12的示例具体是终端设备所选择的波束与配置有CG资源的第一波束不同的情况。However, in subsequent transmissions, for example, if the terminal device determines that the SSBs that meet the threshold are SSB3 and SSB4 based on the SSB selection threshold, then the CG resources are not configured on the resources selected by the terminal device, which is event 1 described in this embodiment. The example of FIG. 12 is specifically a case where the beam selected by the terminal device is different from the first beam configured with CG resources.

对于事件一，导致终端设备在CG-SDT过程中，其所选SSB上没有可用的CG资源的原因可能是，网络设备在配置CG资源的时候未考虑终端设备的移动性，比如终端设备在连接态的时候位于波束SSB1和SSB2的覆盖下，当终端设备进入inactive态时，网络设备只在SSB1和SSB2上关联了CG资源。For event one, the reason why the terminal device has no available CG resources on the selected SSB during the CG-SDT process may be that the network device did not consider the mobility of the terminal device when configuring CG resources. For example, when the terminal device is in the connected state, it is covered by beams SSB1 and SSB2. When the terminal device enters the inactive state, the network device only associates CG resources on SSB1 and SSB2.

由于终端设备的移动性，当SDT业务刚触发的时候，终端设备可以在SSB1和SSB2上关联了CG资源上进行SDT传输，但是在后续的传输中，终端设备移动到了SSB3和SSB4覆盖下，也就是说满足门限的SSB是SSB3和SSB4，但是网络设备并没有为SSB3和SSB4关联CG资源，所以才会导致终端设备无可用的CG资源。这样一来，就导致了终端设备在执行SDT的过程中没有了可用的CG资源，进而可能会导致SDT失败。Due to the mobility of the terminal device, when the SDT service is just triggered, the terminal device can perform SDT transmission on the CG resources associated with SSB1 and SSB2, but in the subsequent transmission, the terminal device moves to the coverage of SSB3 and SSB4, that is, the SSBs that meet the threshold are SSB3 and SSB4, but the network device does not associate CG resources for SSB3 and SSB4, so the terminal device has no available CG resources. As a result, the terminal device has no available CG resources during the execution of SDT, which may cause SDT failure.

上述是针对事件一的说明，同时，还有可能出现在终端设备正在执行SDT时，终端设备所选择的资源上所配置的CG资源被释放的情况。The above is an explanation of event one. At the same time, it is also possible that when the terminal device is executing SDT, the CG resources configured on the resources selected by the terminal device are released.

其中，CG资源被释放，可以包括如下中的至少一种：CG资源的TA定时器超时，CG资源被释放；终端设备测量得到的参考信号接收功率RSRP的变化量大于或等于预设阈值，CG资源被释放。此处也就是本实施例中的事件二。The CG resource is released, which may include at least one of the following: the TA timer of the CG resource times out, and the CG resource is released; the change in the reference signal received power RSRP measured by the terminal device is greater than or equal to a preset threshold, and the CG resource is released. This is event 2 in this embodiment.

对于事件二，可能是由于网络设备对于终端设备的业务到达规律不了解，进而导致了配置CG资源以及其有效性配置的不合理，从而导致在SDT执行过程中CG资源被释放，因此会导致SDT失败。For event 2, it may be because the network equipment does not understand the service arrival pattern of the terminal equipment, which leads to unreasonable configuration of CG resources and their effectiveness, resulting in the release of CG resources during the SDT execution process, thus causing SDT failure.

因此终端设备在确定满足上述介绍的第儿类型事件中的任一种的时候，可以记录小数据传输的第一信息，本实施例中针对第二类型事件的第一信息具体可以为第二上报信息。Therefore, when the terminal device determines that any one of the second type of events described above is met, the terminal device can record the first information of the small data transmission. In this embodiment, the first information for the second type of event can specifically be the second reporting information.

在一种可能的实现方式中，第二上报信息可以包括如下中的至少一种：In a possible implementation manner, the second reporting information may include at least one of the following:

终端设备进入非激活态的时间，或者说RRC release消息发送/接收时间；The time when the terminal device enters the inactive state, or the time when the RRC release message is sent/received;

TA定时器时长；TA timer duration;

RARP变化量对应的预设阈值。The preset threshold corresponding to the RARP change.

在实际实现过程中，第二上报信息的具体实现还可以根据实际需求进行选择和设置，在一种可能的实现方式中，凡是与小数据传输相关的信息均可以作为本实施例中的第二上报信息。In the actual implementation process, the specific implementation of the second reporting information can also be selected and set according to actual needs. In a possible implementation, all information related to small data transmission can be used as the second reporting information in this embodiment.

以及还需要说明的是，本申请中的第一上报信息和第二上报信息实际上都是第一信息，只是在描述不同类型的事件时为了区分，描述预设事件为第一类型事件时，第一信息为第一上报信息，以及预设事件为第二类型事件时，第一信息为第二上报信息。It should also be noted that the first reporting information and the second reporting information in the present application are actually both the first information. They are only used to distinguish different types of events. When the preset event is described as a first type of event, the first information is the first reporting information, and when the preset event is a second type of event, the first information is the second reporting information.

S1104、终端设备向网络设备发送第一消息，其中，第一消息中包括第二上报信息。S1104. The terminal device sends a first message to the network device, wherein the first message includes second reporting information.

终端设备在确定小数据传输的第二上报信息之后，就可以向网络设备发送包括第二上报信息的第一消息，其实现方式与上述介绍的类似，此处不再赘述。After determining the second reporting information of the small data transmission, the terminal device can send a first message including the second reporting information to the network device. The implementation method is similar to that described above and will not be repeated here.

同时还需要说明的是，针对上述介绍的事件一，通过上报终端设备在SDT业务触发的时候对于SSB的测量结果，终端的位置信息以及触发SDT的时间等参数，可用辅助网络侧后续在配置CG资源的时候考虑终端的移动性因素。It should also be noted that, for event one introduced above, by reporting the measurement results of the SSB of the terminal device when the SDT service is triggered, the terminal's location information, the time of triggering SDT and other parameters, the auxiliary network side can be used to consider the terminal's mobility factors when configuring CG resources later.

以及，针对上述介绍的事件二，通过上报TA定时器时长以及RARP变化量对应的预设阈值，可用辅助网络侧后续在配置CG资源的时候考虑终端设备的业务到达规律。In addition, for event 2 introduced above, by reporting the preset threshold value corresponding to the TA timer duration and the RARP change, the auxiliary network side can consider the service arrival pattern of the terminal device when configuring CG resources later.

因此本实施例中，在终端设备确定有可用的CG资源，但是在后续SDT过程中CG资源失效，也就是说确定发生第二类型事件的时候，记录小数据传输的第一信息，并向网络设备上报第一消息，从而可以帮助网络设备优化CG资源的配置，以避免由于CG资源配置不合理所导致的SDT失败。Therefore, in this embodiment, when the terminal device determines that there are available CG resources, but the CG resources fail in the subsequent SDT process, that is, when it is determined that the second type of event has occurred, the first information of the small data transmission is recorded and the first message is reported to the network device, which can help the network device optimize the configuration of CG resources to avoid SDT failure caused by unreasonable CG resource configuration.

综上所述，本申请实施例提供的通信方法，通过终端设备向网络设备上报CG资源的使用情况、SDT失败信息以及参数配置，可以帮助网络设备优化SDT资源以及参数配置，从而可以有效的提升SDT的成功率。To sum up, the communication method provided in the embodiment of the present application, by reporting the usage of CG resources, SDT failure information and parameter configuration to the network device through the terminal device, can help the network device optimize SDT resources and parameter configuration, thereby effectively improving the success rate of SDT.

图13为本申请实施例提供的通信装置的结构示意图。请参见图13，该通信装置130可以包括发送模块1301以及处理模块1302，其中，FIG13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. Referring to FIG13 , the communication device 130 may include a sending module 1301 and a processing module 1302, wherein:

发送模块1301，用于所述终端设备向网络设备发送第一消息，其中，所述第一消息中包括记录小数据传输的第一信息。The sending module 1301 is used for the terminal device to send a first message to the network device, wherein the first message includes first information recording the transmission of small data.

在一种可能的实施方式中，所述装置还包括：处理模块1302；In a possible implementation, the device further includes: a processing module 1302;

所述处理模块1302，用于所述终端设备在满足以下预设事件至少之一时记录所述第一信息：The processing module 1302 is configured for the terminal device to record the first information when at least one of the following preset events is met:

第一类型事件，所述第一类型事件用于指示所述终端设备所选择的资源上未配置CG资源；A first type event, where the first type event is used to indicate that no CG resource is configured on the resource selected by the terminal device;

第二类型事件，所述第二类型事件用于指示所述终端设备所选择的资源上配置有CG资源，并且在小数据传输的过程中，CG资源无效。The second type of event is used to indicate that CG resources are configured on the resources selected by the terminal device, and that the CG resources are invalid during the small data transmission process.

在一种可能的实施方式中，所述终端设备所选择的资源包括载波和波束。In a possible implementation, the resources selected by the terminal device include a carrier and a beam.

在一种可能的实施方式中，所述CG资源为网络设备配置的；In a possible implementation, the CG resource is configured by a network device;

其中，所述CG资源配置在第一载波和至少一个第一波束上，所述第一载波为正常上行NUL载波或者补充上行SUL载波。The CG resources are configured on a first carrier and at least one first beam, and the first carrier is a normal uplink NUL carrier or a supplementary uplink SUL carrier.

在一种可能的实施方式中，所述第一类型事件包括如下至少一种：In a possible implementation manner, the first type of event includes at least one of the following:

所述终端设备所选择的载波与所述第一载波相同，所述终端设备选择的波束与所述第一波束不同；The carrier selected by the terminal device is the same as the first carrier, and the beam selected by the terminal device is different from the first beam;

所述终端设备所选择的载波与所述第一载波不同。The carrier selected by the terminal device is different from the first carrier.

在一种可能的实施方式中，所述终端设备所选择的载波与所述第一载波不同，包括：In a possible implementation manner, the carrier selected by the terminal device is different from the first carrier, including:

所述终端设备所选择的载波为NUL载波，所述第一载波为SUL载波；或者，The carrier selected by the terminal device is a NUL carrier, and the first carrier is a SUL carrier; or,

所述终端设备所选择的载波为SUL载波，所述第一载波为NUL载波。The carrier selected by the terminal device is a SUL carrier, and the first carrier is a NUL carrier.

在一种可能的实施方式中，所述第二类型事件包括如下至少一种：In a possible implementation manner, the second type of event includes at least one of the following:

在传输第一小数据时，所述终端设备所选择的资源上配置有CG资源，在传输第二小数据时，所述终端设备所选择的资源上未配置CG资源，其中，所述第二小数据的传输时间晚于所述第一小数据的传输时间；When transmitting the first small data, the resources selected by the terminal device are configured with CG resources, and when transmitting the second small data, the resources selected by the terminal device are not configured with CG resources, wherein the transmission time of the second small data is later than the transmission time of the first small data;

在终端设备执行小数据传输的过程中，所述终端设备所选择的资源上所配置的CG资源被释放。During the process of the terminal device performing small data transmission, the CG resources configured on the resources selected by the terminal device are released.

在一种可能的实施方式中，所述终端设备所选择的资源上所配置的CG资源被释放，包括：In a possible implementation manner, the CG resource configured on the resource selected by the terminal device is released, including:

所述CG资源的时间对齐TA定时器超时，所述CG资源被释放；或者，The time alignment TA timer of the CG resource times out, and the CG resource is released; or,

所述终端设备测量得到的参考信号接收功率RSRP的变化量大于或等于预设阈值，所述CG资源被释放。If the change in the reference signal received power RSRP measured by the terminal device is greater than or equal to a preset threshold, the CG resources are released.

在一种可能的实施方式中，在所述预设事件为所述第一类型事件时，所述第一信息为第一上报信息；In a possible implementation manner, when the preset event is the first type of event, the first information is first reporting information;

在所述预设事件为所述第二类型事件时，所述第一信息为第二上报信息。When the preset event is the second type event, the first information is second reporting information.

在一种可能的实施方式中，所述第一上报信息和所述第二上报信息包括如下至少一种：In a possible implementation manner, the first reporting information and the second reporting information include at least one of the following:

所述终端设备选择的资源的资源信息；Resource information of the resource selected by the terminal device;

所述终端设备的设备信息；Device information of the terminal device;

所述终端设备的测量结果；The measurement result of the terminal device;

所述终端设备在选择波束时的SSB测量结果；The SSB measurement result of the terminal device when selecting a beam;

第一数据的到达时间，所述第一数据为所述终端设备待传输的小数据；Arrival time of first data, where the first data is small data to be transmitted by the terminal device;

所述终端设备进入非激活态的时间。The time when the terminal device enters the inactive state.

在一种可能的实施方式中，所述资源信息包括如下至少一种：In a possible implementation manner, the resource information includes at least one of the following:

所述终端设备选择的载波；The carrier selected by the terminal device;

所述终端设备选择的波束；The beam selected by the terminal device;

载波选择对应的第一阈值；A first threshold corresponding to carrier selection;

波束选择对应的第二阈值。The beam selector corresponds to a second threshold.

在一种可能的实施方式中，所述设备信息包括如下至少一种：In a possible implementation manner, the device information includes at least one of the following:

所述终端设备进行资源选择时所在的位置；The location of the terminal device when selecting resources;

所述终端设备进行资源选择的时间。The time when the terminal device selects resources.

在一种可能的实施方式中，所述测量结果包括如下至少一种：In a possible implementation manner, the measurement result includes at least one of the following:

下行参考信号的RSRP；RSRP of the downlink reference signal;

所述下行参考信号的参考信号接收质量RSRQ；A reference signal received quality RSRQ of the downlink reference signal;

所述下行参考信号的信号与干扰加噪声比SINR。The downlink reference signal has a signal to interference plus noise ratio SINR.

在一种可能的实施方式中，所述第二上报信息还包括如下至少一种：In a possible implementation manner, the second reporting information further includes at least one of the following:

TA定时器时长；TA timer duration;

在一种可能的实施方式中，所述发送模块1301具体用于：In a possible implementation manner, the sending module 1301 is specifically configured to:

所述终端设备接收所述网络设备发送的请求消息；The terminal device receives a request message sent by the network device;

所述终端设备根据所述请求消息，向网络设备发送所述第一信息。The terminal device sends the first information to the network device according to the request message.

在一种可能的实施方式中，所述请求消息中包括所述第一信息的类型。In a possible implementation manner, the request message includes the type of the first information.

在一种可能的实施方式中，所述处理模块1302还用于：In a possible implementation manner, the processing module 1302 is further configured to:

在所述终端设备接收所述网络设备发送的请求消息之前，存储所述第一信息。Before the terminal device receives the request message sent by the network device, the first information is stored.

在一种可能的实施方式中，所述终端设备为RRC非激活态。In a possible implementation, the terminal device is in an RRC inactive state.

在终端设备在小数据传输SDT异常时，确定第一信息之前，所述终端设备接收所述网络设备发送的RRC连接释放消息；When the small data transmission SDT of the terminal device is abnormal, before determining the first information, the terminal device receives an RRC connection release message sent by the network device;

所述终端设备根据所述RRC连接释放消息，切换至RRC非激活态。The terminal device switches to the RRC inactive state according to the RRC connection release message.

在终端设备在小数据传输SDT异常时，确定第一信息之前，所述终端设备确定存在待发送的小数据。When the small data transmission SDT of the terminal device is abnormal, before determining the first information, the terminal device determines that there is small data to be sent.

本申请实施例提供的通信装置可以执行上述方法实施例所示的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。The communication device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment, and its implementation principle and beneficial effects are similar, which will not be repeated here.

图14为本申请实施例提供的终端设备的结构示意图。请参见图14，终端设备140可以包括：收发器21、存储器22、处理器23。收发器21可包括：发射器和/或接收器。该发射器还可称为发送器、发射机、发送端口或发送接口等类似描述，接收器还可称为接收器、接收机、接收端口或接收接口等类似描述。示例性地，收发器21、存储器22、处理器23，各部分之间通过总线24相互连接。FIG14 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Referring to FIG14 , the terminal device 140 may include: a transceiver 21, a memory 22, and a processor 23. The transceiver 21 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, a transmitter, a transmission port, a transmission interface, or similar descriptions, and the receiver may also be referred to as a receiver, a receiver, a reception port, a reception interface, or similar descriptions. Exemplarily, the transceiver 21, the memory 22, and the processor 23 are interconnected via a bus 24.

存储器22用于存储程序指令；The memory 22 is used to store program instructions;

处理器23用于执行该存储器所存储的程序指令，用以使得终端设备20执行上述任一所示的通信方法。The processor 23 is used to execute the program instructions stored in the memory, so as to enable the terminal device 20 to execute any of the communication methods shown above.

其中，收发器21的接收器，可用于执行上述通信方法中终端设备的接收功能。The receiver of the transceiver 21 can be used to perform the receiving function of the terminal device in the above communication method.

本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现上述通信方法。An embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the above-mentioned communication method.

本申请实施例还可提供一种计算机程序产品，该计算机程序产品可以由处理器执行，在计算机程序产品被执行时，可实现上述任一所示的终端设备执行的通信方法。The embodiment of the present application may also provide a computer program product, which can be executed by a processor. When the computer program product is executed, the communication method executed by any of the terminal devices shown above can be implemented.

本申请实施例的通信设备、计算机可读存储介质及计算机程序产品，可执行上述终端设备执行的通信方法，其具体的实现过程及有益效果参见上述，在此不再赘述。The communication device, computer-readable storage medium and computer program product of the embodiments of the present application can execute the communication method executed by the above-mentioned terminal device. The specific implementation process and beneficial effects thereof are as mentioned above and will not be repeated here.

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

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。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。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 purpose of the scheme of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software functional units.

本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的计算机程序可以存储于一计算机可读取存储介质中。该计算机程序在被处理器执行时，实现包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned method embodiments are implemented; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各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，或者对其中部分或者全部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范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.