CN116391431A - Processing method, device and system for decoding failure - Google Patents

Abstract

The application discloses a decoding failure processing method and device, which are applied to the field of mobile communication. The method comprises the following steps: the access network device sends first indication information to the terminal device, wherein the first indication information indicates the data packet which is submitted to the physical layer and fails to be decoded to the MAC layer. When the data packet fails to be decoded in the physical layer, the terminal device submits the data packet to the MAC layer based on the first indication information. The access network device configures which data packets are submitted to the MAC layer when decoding of the physical layer fails, and other data packets are not submitted when decoding fails, thereby being beneficial to high-reliability transmission of low-delay service, reducing waste of air interface resources caused by error correction of all services of the terminal device by using network codes.

Description

Translated fromChinese

解码失败的处理方法、装置和系统Processing method, device and system for decoding failure技术领域technical field

本申请涉及移动通信技术领域，尤其涉及一种解码失败的处理方法、装置和系统。The present application relates to the technical field of mobile communication, and in particular to a decoding failure processing method, device and system.

背景技术Background technique

随着扩展现实(extended reality，XR)技术的不断进步和完善，相关产业得到了蓬勃的发展。如今，扩展现实技术已经进入到教育、娱乐、军事、医疗、环保、交通运输、公共卫生等各种与人们生产、生活息息相关的领域当中。扩展现实是各种现实相关技术的总称，具体包括：虚拟现实(virtual reality，VR)，增强现实(augmented reality，AR)和混合现实(mixed reality，MR)。其中虚拟现实技术主要是指对视觉和音频场景的渲染以尽可能地模拟现实世界中的视觉和音频对用户的感官刺激。增强现实技术主要是指在用户感知的现实环境中提供视觉或听觉的附加信息或人工生成内容。混合现实技术是AR的一种高级形式，其实现方式之一是将一些虚拟元素插入到物理场景中，目的是为用户提供一种这些元素是真实场景一部分的沉浸体验。XR业务有着高传输速率、低传输时延的需求。当XR应用在无线通信场景下，可以避免连接线带来的限制，但无线通信信道易产生波动，可能导致XR业务产生卡顿、花屏等一系列问题，严重影响用户体验，如何提高无线通信场景中数据传输的可靠性和保证低时延成为了本领域技术人员亟需解决的问题。With the continuous progress and improvement of extended reality (XR) technology, the related industries have developed vigorously. Today, extended reality technology has entered various fields closely related to people's production and life, such as education, entertainment, military, medical care, environmental protection, transportation, and public health. Extended reality is a general term for various reality-related technologies, including: virtual reality (virtual reality, VR), augmented reality (augmented reality, AR) and mixed reality (mixed reality, MR). Among them, virtual reality technology mainly refers to the rendering of visual and audio scenes to simulate as much as possible the sensory stimulation of visual and audio in the real world to users. Augmented reality technology mainly refers to providing additional visual or auditory information or artificially generated content in the real environment perceived by users. Mixed reality technology is an advanced form of AR, and one of the ways it is implemented is to insert some virtual elements into the physical scene, with the purpose of providing users with an immersive experience that these elements are part of the real scene. XR services have the requirements of high transmission rate and low transmission delay. When XR is applied in the wireless communication scenario, it can avoid the restrictions brought by the connection line, but the wireless communication channel is prone to fluctuations, which may cause a series of problems such as freezes and blurred screens in the XR service, which seriously affects the user experience. How to improve the wireless communication scenario Reliability of data transmission in the medium and guarantee of low delay have become urgent problems to be solved by those skilled in the art.

发明内容Contents of the invention

本申请实施例提供一种解码失败的处理方法、装置和系统，根据本申请提供的技术方案，接入网设备向终端设备发送第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到媒体接入控制(media access control，MAC)层。当数据包在物理层解码失败时，终端设备基于第一指示信息递交该数据包到MAC层。通过接入网设备配置哪些数据包在物理层解码失败时递交给MAC层，而另外的数据包在解码失败时不进行递交，有利于低时延业务的高可靠传输，减少终端设备所有的业务使用网络编码进行纠错而造成的空口资源的浪费。此外，通过基于调度数据的下行控制信息(downlink control information,DCI)获取该被调度数据的承载信息，并将其递交给上层，从而消除在逻辑信道标识(logic channel identity，LCID)传输错误的情况下将该被调度数据递交给错误的无线链路控制(radio link control，RLC)实体而导致的数据传输错误。The embodiment of the present application provides a decoding failure processing method, device and system. According to the technical solution provided by the present application, the access network equipment sends the first indication information to the terminal equipment, and the first indication information indicates that the decoding failure in the physical layer is submitted. The data packet goes to the media access control (media access control, MAC) layer. When the data packet fails to be decoded at the physical layer, the terminal device delivers the data packet to the MAC layer based on the first indication information. Configure which data packets are submitted to the MAC layer when the physical layer decoding fails through the access network device, and other data packets are not submitted when the decoding fails, which is conducive to the highly reliable transmission of low-latency services and reduces all services of terminal equipment The waste of air interface resources caused by using network coding for error correction. In addition, the bearer information of the scheduled data is obtained based on the downlink control information (DCI) of the scheduled data, and delivered to the upper layer, thereby eliminating the transmission error of the logical channel identity (logic channel identity, LCID) A data transmission error caused by submitting the scheduled data to a wrong radio link control (radio link control, RLC) entity.

第一方面，提供一种通信方法。可以理解的是，该第一方面的方法可由第一装置执行，第一装置可以是通信设备或能够支持通信设备实现该方法所需功能的通信装置，例如芯片、芯片系统或处理器。下面以该方法由终端设备执行为例进行说明。In a first aspect, a communication method is provided. It can be understood that the method of the first aspect may be executed by a first device, and the first device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip, a chip system or a processor. The following takes the method executed by the terminal device as an example for description.

该方法包括：终端设备接收来自接入网设备的第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层、RLC层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层或网络编码层。终端设备接收来自接入网设备的第一数据包，当第一数据包在物理层解码失败时，基于第一指示信息递交第一数据包到上层。通过接入网设备配置哪些数据包在物理层解码失败时递交给上层，而另外的数据包在解码失败时不递交，有利于低时延业务的高可靠传输，减少终端设备所有的业务使用网络编码进行纠错而造成的空口资源的浪费。The method includes: the terminal device receives first indication information from the access network device, and the first indication information indicates that the data packet that fails to be decoded at the physical layer is delivered to the upper layer, and the upper layer may include a MAC layer, an RLC layer, and a packet data convergence layer protocol ( packet data convergence protocol, PDCP) layer or network coding layer. The terminal device receives the first data packet from the access network device, and when the first data packet fails to be decoded at the physical layer, delivers the first data packet to an upper layer based on the first indication information. Configure which data packets are submitted to the upper layer when the physical layer decoding fails through the access network device, and other data packets are not submitted when the decoding fails, which is conducive to the highly reliable transmission of low-latency services and reduces the use of the network for all services of terminal devices The waste of air interface resources caused by encoding error correction.

在第一方面的一种可能的实现方式中，终端设备接收来自接入网设备的无线资源控制(radio resouce control,RRC)消息，该RRC消息包括第一指示信息。第一指示信息可以是承载级的指示信息，也就是，第一指示信息具体指示终端设备递交在某个承载上传输的并且在物理层解码失败的数据包到上层。第一指示信息可以包括该承载的标识信息。通过配置承载级的第一指示信息，可以使得针对不同的承载进行不同的处理，以满足业务的传输需求。可选的，终端设备在物理层获取第一数据包的承载的标识信息，基于第一指示信息和该承载的标识信息确定是否递交第一数据包到上层。In a possible implementation manner of the first aspect, the terminal device receives a radio resource control (radio resource control, RRC) message from the access network device, where the RRC message includes first indication information. The first indication information may be bearer-level indication information, that is, the first indication information specifically instructs the terminal device to submit a data packet transmitted on a certain bearer and failing to be decoded at the physical layer to an upper layer. The first indication information may include identification information of the bearer. By configuring the first indication information at the bearer level, different processes can be performed for different bearers, so as to meet service transmission requirements. Optionally, the terminal device acquires identification information of the bearer of the first data packet at the physical layer, and determines whether to deliver the first data packet to an upper layer based on the first indication information and the identification information of the bearer.

在第一方面的另一种可能的实现方式中，终端设备接收来自接入网设备的DCI，该DCI包括第一指示信息。第一指示信息具体指示终端设备递交该DCI调度的并且在物理层解码失败的数据包到上层。第一指示信息可以通过该DCI包括的内容来携带，即显式的第一指示信息。第一指示信息也可以通过DCI格式来体现，即隐式的第一指示信息。通过DCI包括第一指示信息，有利于更灵活的指示哪些数据包在解码失败后递交到上层。In another possible implementation manner of the first aspect, the terminal device receives DCI from the access network device, where the DCI includes the first indication information. The first indication information specifically instructs the terminal device to submit the data packet scheduled by the DCI and failing to be decoded at the physical layer to an upper layer. The first indication information may be carried by content included in the DCI, that is, explicit first indication information. The first indication information may also be embodied in a DCI format, that is, implicit first indication information. The inclusion of the first indication information in the DCI is beneficial to more flexibly indicate which data packets are delivered to the upper layer after the decoding fails.

在第一方面以及第一方面的任一种可能的实现方式中，可选的，终端设备递交第一数据包和第二指示信息到上层，第二指示信息指示第一数据包在物理层解码失败，或者第二指示信息指示第一数据包是解码成功还是解码失败。上层可以区分哪些数据包是在物理层解码失败的，哪些数据包是在物理层解码成功的，从而可以执行不同的处理，以提高处理效率，减少不必要的处理资源浪费。In the first aspect and any possible implementation of the first aspect, optionally, the terminal device submits the first data packet and the second indication information to the upper layer, and the second indication information indicates that the first data packet is decoded at the physical layer failure, or the second indication information indicates whether the decoding of the first data packet succeeds or fails. The upper layer can distinguish which data packets fail to be decoded at the physical layer, and which data packets are successfully decoded at the physical layer, so that different processing can be performed to improve processing efficiency and reduce unnecessary waste of processing resources.

在第一方面以及第一方面的任一种可能的实现方式中，可选的，终端设备在物理层获取第一数据包的承载的标识信息，终端设备递交第一数据包和第一数据包的承载的标识信息到上层，从而，例如消除在LCID传输错误的情况下将第一数据包递交给错误的RLC实体而导致的数据传输错误。In the first aspect and any possible implementation of the first aspect, optionally, the terminal device obtains the identification information of the bearer of the first data packet at the physical layer, and the terminal device submits the first data packet and the first data packet The identification information of the bearer is sent to the upper layer, so as to eliminate, for example, a data transmission error caused by delivering the first data packet to a wrong RLC entity in the case of an LCID transmission error.

第二方面，提供一种通信方法。可以理解的是，该第二方面的方法可由第二装置执行，第二装置可以是通信设备或能够支持通信设备实现该方法所需功能的通信装置，例如芯片、芯片系统或处理器。下面以该方法由接入网设备执行为例进行说明。In a second aspect, a communication method is provided. It can be understood that the method of the second aspect may be executed by a second device, and the second device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip, a chip system or a processor. The method is described below by taking the method executed by the access network device as an example.

该方法包括：接入网设备生成第一指示信息，并向终端设备发送第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层、RLC层、PDCP层或网络编码层。通过接入网设备配置哪些数据包在物理层解码失败时递交给上层，而另外的数据包在解码失败时不递交，有利于低时延业务的高可靠传输，减少终端设备所有的业务使用网络编码进行纠错而造成的空口资源的浪费。The method includes: the access network device generates first indication information, and sends the first indication information to the terminal device, the first indication information indicates to deliver the data packet that fails to be decoded at the physical layer to the upper layer, and the upper layer may include a MAC layer, an RLC layer, PDCP layer or network coding layer. Configure which data packets are submitted to the upper layer when the physical layer decoding fails through the access network device, and other data packets are not submitted when the decoding fails, which is conducive to the highly reliable transmission of low-latency services and reduces the use of the network for all services of terminal devices The waste of air interface resources caused by encoding error correction.

在第二方面的一种可能的实现方式中，接入网设备向终端设备发送RRC消息，该RRC消息包括第一指示信息。第一指示信息可以是承载级的指示信息，也就是，第一指示信息具体指示终端设备递交在某个承载上传输的并且在物理层解码失败的数据包到上层。第一指示信息可以包括该承载的承载标识。通过配置承载级的第一指示信息，可以使得针对不同的承载进行不同的处理，以满足业务的传输需求。In a possible implementation manner of the second aspect, the access network device sends an RRC message to the terminal device, where the RRC message includes the first indication information. The first indication information may be bearer-level indication information, that is, the first indication information specifically instructs the terminal device to submit a data packet transmitted on a certain bearer and failing to be decoded at the physical layer to an upper layer. The first indication information may include a bearer identifier of the bearer. By configuring the first indication information at the bearer level, different processes can be performed for different bearers, so as to meet service transmission requirements.

在第二方面的另一种可能的实现方式中，接入网设备向终端设备发送DCI，该DCI包括第一指示信息。第一指示信息具体指示终端设备递交该DCI调度的并且在物理层解码失败的数据包到上层。第一指示信息可以通过该DCI包括的内容来携带，即显式的第一指示信息。第一指示信息也可以通过DCI格式来体现，即隐式的第一指示信息。通过DCI包括第一指示信息，有利于更灵活的指示哪些数据包在解码失败后递交到上层。In another possible implementation manner of the second aspect, the access network device sends DCI to the terminal device, where the DCI includes the first indication information. The first indication information specifically instructs the terminal device to submit the data packet scheduled by the DCI and failing to be decoded at the physical layer to an upper layer. The first indication information may be carried by content included in the DCI, that is, explicit first indication information. The first indication information may also be embodied in a DCI format, that is, implicit first indication information. The inclusion of the first indication information in the DCI is beneficial to more flexibly indicate which data packets are delivered to the upper layer after the decoding fails.

第三方面，提供一种通信方法。可以理解的是，该第三方面的方法可由第一装置执行， 第一装置可以是通信设备或能够支持通信设备实现该方法所需功能的通信装置，例如芯片、芯片系统或处理器。下面以该方法由终端设备执行为例进行说明。In a third aspect, a communication method is provided. It can be understood that the method of the third aspect may be executed by the first device, and the first device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip, a chip system or a processor. The following takes the method executed by the terminal device as an example for description.

该方法包括：终端设备接收来自接入网设备的第二DCI，终端设备接收来自接入网设备的第二数据包，第二数据包是第二DCI调度的数据包。终端设备在物理层基于第二DCI获取第二数据包的承载的标识信息，从而基于该承载的标识信息执行相关的处理，例如，递交该承载的标识信息给上层，或者基于该承载的标识信息确定是否将第二数据递交给上层。The method includes: the terminal device receives the second DCI from the access network device, the terminal device receives the second data packet from the access network device, and the second data packet is a data packet scheduled by the second DCI. The terminal device obtains the identification information of the bearer of the second data packet based on the second DCI at the physical layer, so as to perform related processing based on the identification information of the bearer, for example, submit the identification information of the bearer to the upper layer, or based on the identification information of the bearer Determine whether to submit the second data to the upper layer.

在第三方面的一种可能的实现方式中，第二DCI包括第二数据包的承载的标识信息，该承载的标识信息可以是承载标识，或者是承载的LCID。终端设备的物理层可以从第二DCI的内容中获取第二数据包的承载的承载标识或LCID。In a possible implementation manner of the third aspect, the second DCI includes bearer identification information of the second data packet, and the bearer identification information may be a bearer identifier or a bearer LCID. The physical layer of the terminal device may acquire the bearer identifier or LCID of the bearer of the second data packet from the content of the second DCI.

在第三方面的另一种可能的实现方式中，第二DCI包括第二数据包的承载的标识信息，该承载的标识信息可以是承载的LCID索引，或者是承载索引。在接收第二DCI之前，终端设备获得对应关系，该对应关系可以是预定义的，或者是接入网设备配置的。该对应关系是第二数据包的承载的承载索引与承载标识的对应关系，或者第二数据包的承载的LCID索引与承载的LCID的对应关系。终端设备基于该对应关系和第二数据包的承载的承载索引或LCID索引获取第二数据包的承载的承载标识或LCID。由于LCID索引或承载索引占用的比特可以比对应的LCID或对应的承载标识占用的比特更少，因此节省了第二DCI的信令开销。In another possible implementation manner of the third aspect, the second DCI includes identification information of a bearer of the second data packet, and the identification information of the bearer may be an LCID index of the bearer, or a bearer index. Before receiving the second DCI, the terminal device obtains the corresponding relationship, and the corresponding relationship may be predefined or configured by the access network device. The correspondence is the correspondence between the bearer index of the second data packet and the bearer identifier, or the correspondence between the LCID index of the second data packet and the LCID of the bearer. The terminal device acquires the bearer identifier or LCID of the bearer of the second data packet based on the correspondence relationship and the bearer index or LCID index of the bearer of the second data packet. Since the LCID index or the bearer index may occupy fewer bits than the corresponding LCID or the corresponding bearer identifier, the signaling overhead of the second DCI is saved.

在第三方面的另一种可能的实现方式中，基于第二DCI的DCI格式获取第二数据包的承载的标识信息，第二DCI的DCI格式与第二数据包的承载标识或LCID存在对应关系。在接收第二DCI之前，终端设备获得对应关系，该对应关系可以是预定义的，或者是接入网设备配置的。该对应关系是第二DCI的DCI格式与承载标识或LCID的对应关系。终端设备基于该对应关系和第二DCI的DCI格式获取第二数据包的承载的承载标识或LCID。In another possible implementation of the third aspect, the identification information of the bearer of the second data packet is obtained based on the DCI format of the second DCI, and the DCI format of the second DCI corresponds to the bearer identification or LCID of the second data packet relation. Before receiving the second DCI, the terminal device obtains the corresponding relationship, and the corresponding relationship may be predefined or configured by the access network device. The correspondence is the correspondence between the DCI format of the second DCI and the bearer identifier or LCID. The terminal device acquires the bearer identifier or LCID of the bearer of the second data packet based on the correspondence relationship and the DCI format of the second DCI.

在第三方面以及第三方面的任一种可能的实现方式中，可选的，可以与第一方面的方法结合。第二DCI与第一DCI是相同的DCI，第二数据包与第一数据包是相同的数据包。第二数据包在物理层解码失败后，终端设备(具体的，终端设备的物理层)获取第二数据包的承载的承载标识或LCID，基于第一指示信息和该承载的标识信息确定是否递交第二数据包到上层。具体的可以是，终端设备确定是否接收到了对应第二数据包的承载的第一指示信息。如果终端设备接收到了对应的第一指示信息，则递交第二数据包到上层。如果终端设备没有接收到对应的第一指示信息，则不递交第二数据包。In the third aspect and any possible implementation manner of the third aspect, optionally, it may be combined with the method of the first aspect. The second DCI is the same DCI as the first DCI, and the second data packet is the same data packet as the first data packet. After the second data packet fails to be decoded at the physical layer, the terminal device (specifically, the physical layer of the terminal device) obtains the bearer identifier or LCID of the bearer of the second data packet, and determines whether to submit based on the first indication information and the bearer identifier information second packet to the upper layer. Specifically, the terminal device may determine whether the first indication information corresponding to the bearer of the second data packet is received. If the terminal device receives the corresponding first indication information, it submits the second data packet to the upper layer. If the terminal device does not receive the corresponding first indication information, it does not deliver the second data packet.

在第三方面以及第三方面的任一种可能的实现方式中，可选的，终端设备递交第二数据包和第二数据包的承载的标识信息到上层，上层可以包括MAC层、RLC层、PDCP层或网络编码层。标识信息可以包括承载标识，或逻辑信道标识LCID，或LCID索引，或承载索引。可选的，当与第一方面的方法结合时，上层可以基于该标识信息将第二数据包递交到对应的RLC实体，从而消除在LCID传输错误的情况下将第二数据包递交给错误的RLC实体而导致的数据传输错误。可选的，第二数据包包括的MAC PDU不包括LCID，或者第二数据包包括的MAC PDU包括LCID，但终端设备的MAC层忽略该LCID。In the third aspect and any possible implementation of the third aspect, optionally, the terminal device submits the second data packet and the identification information carried by the second data packet to the upper layer, and the upper layer may include a MAC layer and an RLC layer , PDCP layer or network coding layer. The identification information may include a bearer identification, or a logical channel identification LCID, or an LCID index, or a bearer index. Optionally, when combined with the method of the first aspect, the upper layer may deliver the second data packet to the corresponding RLC entity based on the identification information, thereby eliminating the need to hand over the second data packet to the wrong RLC entity in the case of an LCID transmission error. Data transmission errors caused by RLC entities. Optionally, the MAC PDU included in the second data packet does not include the LCID, or the MAC PDU included in the second data packet includes the LCID, but the MAC layer of the terminal device ignores the LCID.

第四方面，提供一种通信方法。可以理解的是，该第四方面的方法可由第二装置执行，第二装置可以是通信设备或能够支持通信设备实现该方法所需功能的通信装置，例如芯片、芯片系统或处理器。下面以该方法由接入网设备执行为例进行说明。In a fourth aspect, a communication method is provided. It can be understood that the method in the fourth aspect may be executed by the second device, and the second device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip, a chip system or a processor. The method is described below by taking the method executed by the access network device as an example.

该方法包括：接入网设备生成第二DCI并向终端设备发送第二DCI，第二DCI包括第二DCI调度的数据包的承载的标识信息，从而使得终端设备能基于第二DCI获取第二DCI调度的数据包的承载的标识信息，并基于该承载的标识信息执行相关的处理，例如，递交该承载的标识信息给上层，或者基于该承载的标识信息确定是否将该数据包递交给上层。The method includes: the access network device generates a second DCI and sends the second DCI to the terminal device, the second DCI includes the identification information of the bearer of the data packet scheduled by the second DCI, so that the terminal device can obtain the second DCI based on the second DCI. The identification information of the bearer of the data packet scheduled by DCI, and perform related processing based on the identification information of the bearer, for example, submit the identification information of the bearer to the upper layer, or determine whether to deliver the data packet to the upper layer based on the identification information of the bearer .

可选的，标识信息包括承载标识，或逻辑信道标识LCID，或LCID索引，或承载索引。Optionally, the identification information includes a bearer identifier, or a logical channel identifier LCID, or an LCID index, or a bearer index.

在第四方面的一种可能的实现方式中，第二DCI的内容包括第二DCI调度的数据包的承载的标识信息。In a possible implementation manner of the fourth aspect, the content of the second DCI includes identification information of a bearer of a data packet scheduled by the second DCI.

在第四方面的另一种可能的实现方式中，第二DCI的DCI格式与第二DCI调度的数据包的承载标识或LCID存在对应关系。In another possible implementation manner of the fourth aspect, there is a corresponding relationship between the DCI format of the second DCI and the bearer identifier or LCID of the data packet scheduled by the second DCI.

第五方面，提供了一种通信装置，该通信装置具有实现上述第一方面的方法中的行为的功能。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。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备，也可以是能够支持终端设备实现上述第一方面的方法中的功能的装置，例如，该通信装置可以是芯片、芯片系统或处理器。In a fifth aspect, a communication device is provided, and the communication device has a function of implementing the behaviors in the method of the first aspect above. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more units or modules corresponding to the functions described above. The communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the first aspect above, for example, the communication device may be a chip, a chip system, or a processor.

在一个可能的设计中，该通信装置包括：接收单元，用于接收来自接入网设备的第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层、RLC层、PDCP层或网络编码层，接收单元还用于接收来自接入网设备的第一数据包；处理单元，用于当第一数据包在物理层解码失败时基于第一指示信息递交第一数据包到上层。这些单元或模块可以执行上述第一方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。In a possible design, the communication apparatus includes: a receiving unit, configured to receive first indication information from an access network device, the first indication information indicating to deliver a data packet that fails to be decoded at the physical layer to an upper layer, and the upper layer may include a MAC Layer, RLC layer, PDCP layer or network coding layer, the receiving unit is also used to receive the first data packet from the access network device; the processing unit is used to based on the first indication information when the first data packet fails to be decoded at the physical layer Deliver the first data packet to the upper layer. These units or modules can perform the corresponding functions in the method example of the first aspect, for details, refer to the detailed description in the method example, and details are not repeated here.

第六方面，提供了一种通信装置，该通信装置具有实现上述第二方面的方法中的行为的功能。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。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是接入网设备，也可以是能够支持接入网设备实现上述第二方面的方法中的功能的装置，例如，该通信装置可以是芯片、芯片系统或处理器。In a sixth aspect, a communication device is provided, and the communication device has a function of implementing the behaviors in the method of the second aspect above. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more units or modules corresponding to the functions described above. The communication device may be an access network device, or a device capable of supporting the access network device to implement the functions in the method of the second aspect above, for example, the communication device may be a chip, a chip system or a processor.

在一个可能的设计中，该通信装置包括：处理单元，用于生成第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层、RLC层、PDCP层或网络编码层；发送单元，用于向终端设备发送第一指示信息。这些单元或模块可以执行上述第二方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。In a possible design, the communication device includes: a processing unit, configured to generate first indication information, where the first indication information indicates that a data packet that fails to be decoded at the physical layer is delivered to an upper layer, and the upper layer may include a MAC layer, an RLC layer, and a PDCP layer. layer or network coding layer; a sending unit, configured to send the first indication information to the terminal device. These units or modules can perform the corresponding functions in the method examples of the second aspect above. For details, refer to the detailed description in the method examples, and details are not repeated here.

第七方面，提供了一种通信装置，该通信装置具有实现上述第三方面的方法中的行为的功能。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。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是终端设备，也可以是能够支持终端设备实现上述第三方面的方法中的功能的装置，例如，该通信装置可以是芯片、芯片系统或处理器。In a seventh aspect, a communication device is provided, and the communication device has a function of implementing the behaviors in the method of the third aspect above. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more units or modules corresponding to the functions described above. The communication device may be a terminal device, or a device capable of supporting the terminal device to implement the functions in the method of the third aspect above, for example, the communication device may be a chip, a chip system, or a processor.

在一个可能的设计中，该通信装置包括：接收单元，用于接收来自接入网设备的第二DCI，接收单元还用于接收来自接入网设备的第二数据包，第二数据包是第二DCI调度的数据包；处理单元，用于在物理层基于第二DCI获取第二数据包的承载的标识信息。这些单元或模块可以执行上述第三方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。In a possible design, the communication apparatus includes: a receiving unit configured to receive the second DCI from the access network device, the receiving unit is also configured to receive the second data packet from the access network device, the second data packet is A data packet scheduled by the second DCI; a processing unit configured to acquire, at the physical layer, identification information of a bearer of the second data packet based on the second DCI. These units or modules can perform the corresponding functions in the above method examples of the third aspect. For details, refer to the detailed description in the method examples, and details are not repeated here.

第八方面，提供了一种通信装置，该通信装置具有实现上述第四方面的方法中的行为 的功能。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。硬件或软件包括一个或多个与上述功能相对应的单元或模块。该通信装置可以是接入网设备，也可以是能够支持接入网设备实现上述第四方面的方法中的功能的装置，例如，该通信装置可以是芯片、芯片系统或处理器。In an eighth aspect, a communication device is provided, and the communication device has the function of realizing the behavior in the method of the fourth aspect above. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more units or modules corresponding to the functions described above. The communication device may be an access network device, or a device capable of supporting the access network device to implement the functions in the method of the fourth aspect above, for example, the communication device may be a chip, a chip system or a processor.

在一个可能的设计中，该通信装置包括：处理单元，用于生成第二DCI；发送单元，用于向终端设备发送第二DCI，第二DCI包括第二DCI调度的数据包的承载的标识信息发送单元。这些单元或模块可以执行上述第四方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。In a possible design, the communication apparatus includes: a processing unit, configured to generate a second DCI; a sending unit, configured to send the second DCI to the terminal device, where the second DCI includes an identifier of a bearer of a data packet scheduled by the second DCI Information sending unit. These units or modules can perform the corresponding functions in the method example of the fourth aspect, for details, refer to the detailed description in the method example, and details are not repeated here.

第九方面，提供了一种通信装置，该通信装置可以为实现上述第一方面至第四方面中任何一个方面的方法的通信装置，或者为设置在实现上述第一方面至第四方面中任何一个方面的方法的通信装置中的芯片。该通信装置包括通信接口以及处理器，可选的，还包括存储器。其中，该存储器用于存储计算机程序或指令或者数据，处理器与存储器、通信接口耦合，当处理器读取计算机程序或指令或数据时，使通信装置执行各个方面中由终端设备或接入网设备所执行的方法。A ninth aspect provides a communication device, which may be a communication device implementing the method in any one of the above first to fourth aspects, or a communication device configured to implement any of the above first to fourth aspects A chip in a communication device according to the method of one aspect. The communication device includes a communication interface, a processor, and optionally, a memory. Wherein, the memory is used to store computer programs or instructions or data, and the processor is coupled with the memory and the communication interface. When the processor reads the computer programs or instructions or data, the communication device is used to execute various aspects of the information provided by the terminal equipment or the access network. The method implemented by the device.

应理解，该通信接口可以是通信装置中的收发器，例如通过该通信装置中的天线、馈线和编解码器等实现，或者，如果通信装置为设置在接入网设备中的芯片，则通信接口可以是该芯片的输入/输出接口，例如输入/输出管脚等。该收发器用于该通信装置与其它设备进行通信。示例性地，当该通信装置为终端设备时，该其它设备为接入网设备；或者，当该通信装置为接入网设备时，该其它设备为终端设备。It should be understood that the communication interface may be a transceiver in the communication device, for example, implemented by an antenna, a feeder, and a codec in the communication device, or, if the communication device is a chip set in the access network equipment, the communication The interface may be an input/output interface of the chip, such as an input/output pin or the like. The transceiver is used for the communication device to communicate with other equipment. Exemplarily, when the communication device is a terminal device, the other device is an access network device; or, when the communication device is an access network device, the other device is a terminal device.

第十方面，提供了一种芯片系统，该芯片系统包括处理器，用于实现第一方面至第四方面中的任何一个方面的通信方法。在一种可能的设计中，该芯片系统还包括存储器，用于保存程序指令和/或数据。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。In a tenth aspect, a chip system is provided, and the chip system includes a processor, configured to implement the communication method in any one of the first aspect to the fourth aspect. In a possible design, the chip system further includes a memory for storing program instructions and/or data. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

第十一方面，提供了一种通信系统，该系统包括实现第一方面的方法的通信装置以及实现第二方面的方法的通信装置，或包括实现第三方面的方法的通信装置以及实现第四方面的方法的通信装置。In an eleventh aspect, a communication system is provided, the system includes a communication device for realizing the method of the first aspect and a communication device for realizing the method of the second aspect, or includes a communication device for realizing the method of the third aspect and a communication device for realizing the fourth aspect A communication device according to the method of the aspect.

第十二方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码被运行时，使得上述各方面中由第一接入网设备执行的方法被执行，或使得上述各方面中由第二接入网设备执行的方法被执行；或使得上述各方面中由终端设备执行的方法被执行。In a twelfth aspect, a computer program product is provided, and the computer program product includes: computer program code, when the computer program code is executed, the method performed by the first access network device in the above aspects is executed, Or cause the method performed by the second access network device in the above aspects to be performed; or cause the method performed by the terminal device in the above aspects to be performed.

第十三方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述各方面中由终端设备执行的方法；或实现上述各方面中由接入网设备执行的方法。In a thirteenth aspect, a computer-readable storage medium is provided, the computer-readable storage medium stores a computer program, and when the computer program is run, the method performed by the terminal device in the above-mentioned aspects is realized; or the above-mentioned each A method performed by an access network device of the aspect.

附图说明Description of drawings

图1为本申请实施例应用的一种通信系统的架构示意图；FIG. 1 is a schematic structural diagram of a communication system applied in an embodiment of the present application;

图2为本申请实施例提供的一种用户面协议栈以及各个协议层实体的关联关系图；FIG. 2 is a user plane protocol stack and an association relationship diagram of each protocol layer entity provided by the embodiment of the present application;

图3为本申请实施例提供的通信方法的一种示例的流程图；FIG. 3 is a flowchart of an example of a communication method provided in an embodiment of the present application;

图4为本申请实施例提供的通信方法的另一种示例的流程图；FIG. 4 is a flow chart of another example of a communication method provided by an embodiment of the present application;

图5为本申请实施例提供的通信方法的另一种示例的流程图；FIG. 5 is a flow chart of another example of the communication method provided by the embodiment of the present application;

图6为本申请实施例提供的通信装置的一种结构示意图；FIG. 6 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

图7为本申请实施例提供的通信装置的另一种结构示意图；FIG. 7 is another schematic structural diagram of a communication device provided by an embodiment of the present application;

图8为本申请实施例提供的通信装置的另一种结构示意图；FIG. 8 is another schematic structural diagram of a communication device provided by an embodiment of the present application;

图9为本申请实施例提供的通信装置的另一种结构示意图。FIG. 9 is another schematic structural diagram of a communication device provided by an embodiment of the present application.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。可以理解，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It can be understood that the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

下文所描述的本申请实施例的技术方案可以应用于如图1所示的网络架构，其中，图1仅是通信系统的一种示例，该通信系统可以包括多个终端设备和多个网络设备，图1以包括2个终端设备和2个网络设备为例。当然图1中的终端设备的数量只是举例，还可以更少或更多，网络设备可以为处于覆盖范围内的终端设备提供服务。The technical solutions of the embodiments of the present application described below can be applied to the network architecture shown in Figure 1, where Figure 1 is only an example of a communication system, and the communication system can include multiple terminal devices and multiple network devices , Fig. 1 includes 2 terminal devices and 2 network devices as an example. Of course, the number of terminal devices in FIG. 1 is just an example, and may be less or more, and the network device may provide services for terminal devices within coverage.

在本申请中，终端设备是一种具有无线收发功能的设备，可以是固定设备、移动设备、手持设备、穿戴设备、车辆、车载设备，或内置于上述设备中的装置(例如，通信模块或芯片系统等)。所述终端设备用于连接人、物、机器等，可广泛用于各种场景。有时也可以称为用户设备(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。本申请的实施例中的终端设备可以是手机、平板电脑、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、工业控制中的无线终端、物联网系统中的无线终端，无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、运输安全中的无线终端、智慧城市中的无线终端、智慧家庭中的无线终端、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、个人数字助理(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、车载通信装置，车载通信处理芯片，可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。应理解，本申请对于终端设备的具体形式不作限定。In this application, a terminal device is a device with a wireless transceiver function, which may be a fixed device, a mobile device, a handheld device, a wearable device, a vehicle, a vehicle-mounted device, or a device built into the above-mentioned devices (for example, a communication module or chip system, etc.). The terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios. Also sometimes referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless Terminals, wireless terminals in IoT systems, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes Wireless terminals, cellular phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, vehicle-mounted communication devices, vehicle-mounted communication processing chips, wearable devices, terminal devices in 5G networks or future evolution of public land mobile communication networks (public land mobile network, PLMN) in the terminal equipment, etc. It should be understood that the present application does not limit the specific form of the terminal device.

网络设备可以是接入网设备，接入网设备也可以称为无线接入网(radio access network，RAN)设备，是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备，也可以认为是一种为终端设备提供无线通信功能的设备。接入网设备例如包括但不限于：5G中的下一代基站(generation nodeB，gNB)、演进型节点B(evolved node B，eNB)、基带单元(baseband Unit，BBU)、收发点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、未来移动通信系统中的基站或WiFi系统中的接入点等。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)，或者网络设备可以为中继站、车载设备以及未来演进的PLMN网络中的网络设备等。The network device can be an access network device, and the access network device can also be called a radio access network (radio access network, RAN) device. A communication device may also be regarded as a device that provides a wireless communication function for a terminal device. Access network equipment includes, but is not limited to: 5G next-generation base station (generation nodeB, gNB), evolved node B (evolved node B, eNB), baseband unit (baseband unit, BBU), transceiver point (transmitting and receiving point, TRP), a transmitting point (transmitting point, TP), a base station in a future mobile communication system or an access point in a WiFi system, etc. The access network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or a network The device may be a relay station, a vehicle-mounted device, and a network device in a future evolved PLMN network.

CU和DU在物理上可以是分离的也可以部署在一起。多个DU可以共用一个CU。一个DU也可以连接多个CU。CU和DU之间可以通过接口相连，例如可以是F1接口。CU和DU可以根据无线网络的协议层划分。例如其中一种可能的划分方式是：CU用于执行 无线资源控制(radio resouce control,RRC)层、业务数据适配协议(service data adaptation protocol，SDAP)层以及分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，而DU用于执行无线链路控制(radio link control，RLC)层，媒体接入控制(media access control，MAC)层，物理(physical)层等的功能。可以理解对CU和DU处理功能按照这种协议层的划分仅仅是一种举例，也可以按照其他的方式进行划分。例如可以将CU或者DU划分为具有更多协议层的功能。例如，CU或DU还可以划分为具有协议层的部分处理功能。在一设计中，将RLC层的部分功能和RLC层以上的协议层的功能设置在CU，将RLC层的剩余功能和RLC层以下的协议层的功能设置在DU。在另一种设计中，还可以按照业务类型或者其他系统需求对CU或者DU的功能进行划分。例如按时延划分，将处理时间需要满足时延要求的功能设置在DU，不需要满足该时延要求的功能设置在CU。上图所示的网络架构可以应用于5G通信系统，其也可以与LTE系统共享一个或多个部件或资源。在另一种设计中，CU也可以具有核心网的一个或多个功能。一个或者多个CU可以集中设置，也分离设置。例如CU可以设置在网络侧方便集中管理。DU可以具有多个射频功能，也可以将射频功能拉远设置。CU and DU can be physically separated or deployed together. Multiple DUs can share one CU. One DU can also be connected to multiple CUs. The CU and the DU may be connected through an interface, such as an F1 interface. CU and DU can be divided according to the protocol layer of the wireless network. For example, one possible division method is: the CU is used to execute the radio resource control (radio resource control, RRC) layer, the service data adaptation protocol (service data adaptation protocol, SDAP) layer and the packet data convergence layer protocol (packet data convergence) protocol, PDCP) layer, and the DU is used to perform functions such as a radio link control (radio link control, RLC) layer, a media access control (media access control, MAC) layer, and a physical (physical) layer. It can be understood that the division of the CU and DU processing functions according to this protocol layer is only an example, and may also be divided in other ways. For example, a CU or DU can be divided into functions with more protocol layers. For example, a CU or DU can also be divided into some processing functions having a protocol layer. In one design, some functions of the RLC layer and functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and functions of the protocol layers below the RLC layer are set in the DU. In another design, the functions of the CU or DU may also be divided according to service types or other system requirements. For example, according to delay, the functions whose processing time needs to meet the delay requirement are set in the DU, and the functions that do not need to meet the delay requirement are set in the CU. The network architecture shown in the above figure can be applied to the 5G communication system, and it can also share one or more components or resources with the LTE system. In another design, the CU may also have one or more functions of the core network. One or more CUs can be set centrally or separately. For example, the CU can be set on the network side to facilitate centralized management. The DU can have multiple radio functions, or the radio functions can be set remotely.

CU的功能可以由一个实体来实现也可以由不同的实体实现。例如，可以对CU的功能进行进一步切分，例如，将控制面(control plane，CP)和用户面(user plane，UP)分离，即CU的控制面(CU-CP)和CU用户面(CU-UP)。例如，CU-CP和CU-UP可以由不同的功能实体来实现，所述CU-CP和CU-UP可以与DU相耦合，共同完成接入网设备的功能。The functions of the CU can be implemented by one entity or by different entities. For example, the functions of the CU can be further divided, for example, the control plane (control plane, CP) and the user plane (user plane, UP) are separated, that is, the CU control plane (CU-CP) and the CU user plane (CU -UP). For example, the CU-CP and CU-UP can be implemented by different functional entities, and the CU-CP and CU-UP can be coupled with the DU to jointly complete the functions of the access network device.

终端设备可以与不同技术的接入网设备进行通信，例如，终端设备可以与支持长期演进(long term evolution，LTE)的接入网设备通信，也可以与支持5G的接入网设备通信，还可以同时与支持LTE的接入网设备以及支持5G的接入网设备进行通信。本申请实施例并不限定。A terminal device can communicate with access network devices of different technologies. For example, a terminal device can communicate with an access network device supporting long term evolution (LTE), or with an access network device supporting 5G. It can communicate with access network equipment supporting LTE and access network equipment supporting 5G at the same time. The embodiment of this application is not limited.

为了便于理解本申请，现对本申请实施例涉及到的相关概念进行描述。In order to facilitate understanding of the present application, related concepts involved in the embodiments of the present application are now described.

1.用户面数据处理1. User plane data processing

图2以5G系统为例，示出了用户面的协议栈以及各个协议层实体的关联关系。协议栈从上到下包括SDAP层、PDCP层、RLC层、MAC层和物理层。其中，SDAP层完成服务质量(quality of service，QoS)流到无线承载的映射。PDCP层完成用户面和控制面的数据的加密、完整性保护和头压缩等功能。RLC层完成数据包的大小匹配等功能。MAC层完成数据调度以及逻辑信道与传输信道之间的映射等功能。1个或多个QoS流映射到一个无线承载，网络设备可以给一个终端设备配置多个无线承载，一个无线承载对应一个PDCP实体、一个RLC实体和一个逻辑信道标识(logic channel identity，LCID)。Fig. 2 takes the 5G system as an example, showing the protocol stack of the user plane and the association relationship of each protocol layer entity. The protocol stack includes SDAP layer, PDCP layer, RLC layer, MAC layer and physical layer from top to bottom. Wherein, the SDAP layer completes the mapping of the quality of service (quality of service, QoS) flow to the radio bearer. The PDCP layer completes functions such as data encryption, integrity protection, and header compression of the user plane and the control plane. The RLC layer completes functions such as size matching of data packets. The MAC layer completes functions such as data scheduling and mapping between logical channels and transport channels. One or more QoS flows are mapped to one radio bearer. A network device can configure multiple radio bearers for one terminal device. One radio bearer corresponds to one PDCP entity, one RLC entity and one logical channel identity (LCID).

对于发送方，协议栈的处理流程是:在SDAP层，根据数据包的QoS流将该数据包映射到一个无线承载，生成一个SDAP协议数据单元(protocol data unit，PDU)，将该SDAP PDU发送给PDCP层的对应该无线承载的PDCP实体。在PDCP层，该数据包经过对应的PDCP实体进行加密等处理后生成一个PDCP PDU，然后发送给对应该无线承载的RLC实体。在RLC层，PDCP PDU经过分段等操作后生成一个RLC PDU发送给MAC实体。对MAC层来说，该RLC PDU是一个MAC业务数据单元(service data unit,SDU)，MAC层复用一个或多个MAC SDU组成一个MAC PDU,其中，在这个MAC PDU中每个MAC SDU对应的部分称为MAC子PDU，MAC子PDU包括一个MAC子头和一个MAC SDU，MAC 子头包括一个LCID域，该LCID是对应的MAC SDU的无线承载的逻辑信道标识，MAC层将MAC PUD然后发送给物理层。物理层对MAC PDU经过编码、调制等操作后通过无线空口发送给对端。For the sender, the processing flow of the protocol stack is: at the SDAP layer, the data packet is mapped to a radio bearer according to the QoS flow of the data packet, an SDAP protocol data unit (protocol data unit, PDU) is generated, and the SDAP PDU is sent The PDCP entity corresponding to the radio bearer for the PDCP layer. At the PDCP layer, the data packet is encrypted and processed by the corresponding PDCP entity to generate a PDCP PDU, and then sent to the RLC entity corresponding to the radio bearer. At the RLC layer, after the PDCP PDU is segmented and other operations, an RLC PDU is generated and sent to the MAC entity. For the MAC layer, the RLC PDU is a MAC service data unit (service data unit, SDU), and the MAC layer multiplexes one or more MAC SDUs to form a MAC PDU, wherein each MAC SDU in this MAC PDU corresponds to The part of the MAC sub-PDU is called the MAC sub-PDU. The MAC sub-PDU includes a MAC sub-header and a MAC SDU. The MAC sub-header includes an LCID field. The LCID is the logical channel identifier of the radio bearer of the corresponding MAC SDU. sent to the physical layer. The physical layer sends the MAC PDU to the opposite end through the wireless air interface after encoding and modulation.

对于接收方，协议栈的处理流程是:物理层对空口收到的信号进行解调和解码，如果解码失败，则不递交接收到的数据，并反馈否定应答(negative acknowledgment,NACK)给发送方，由发送方执行重传。如果解码成功，则将解码出的MAC PDU递交给MAC层，MAC层解析出每个MAC子PDU以及每个MAC子PDU的MAC子头和MAC SDU，根据每个MAC子头里的LCID确定对应的无线承载，将对应MAC SDU递交给对应该无线承载的RLC实体，RLC实体去除RLC头后递交给对应该无线承载的PDCP实体，PDCP实体进行解密等操作后递交给SDAP层。For the receiver, the processing flow of the protocol stack is: the physical layer demodulates and decodes the signal received by the air interface. If the decoding fails, the received data is not delivered, and a negative acknowledgment (NACK) is fed back to the sender , the retransmission is performed by the sender. If the decoding is successful, the decoded MAC PDU is delivered to the MAC layer, and the MAC layer parses out each MAC sub-PDU and the MAC sub-header and MAC SDU of each MAC sub-PDU, and determines the corresponding For the radio bearer, the corresponding MAC SDU is delivered to the RLC entity corresponding to the radio bearer. The RLC entity removes the RLC header and then submits it to the PDCP entity corresponding to the radio bearer. The PDCP entity performs decryption and other operations and then submits it to the SDAP layer.

2.XR业务传输及网络编码2. XR service transmission and network coding

XR业务具有高速率要求，速率要求例如一般在100兆比特每秒(million bits per second，Mbps)-150Mbps。XR业务也具有短时延要求，空口单向传输时延要求例如在5毫秒到10毫秒。为满足XR业务高速率、低时延、高可靠需求，现有系统性能会下降严重。例如在满足高速率、低时延、高可靠要求的基础上，每个小区系统仅能支持少量的XR用户，无法满足未来网络的系统用户容量需求。此外，由于5G无线信道的波动特性，导致信道容量的波动性，进而导致XR业务的误包率增加，时延增大，进一步导致XR业务产生卡顿、花屏、黑边等一系列问题，严重影响用户体验。仿真评估表明在信道容量下降时，现有系统下XR的体验性能会出现急剧下降，以致用户体验急剧变差。The XR service has a high rate requirement, for example, the rate requirement generally ranges from 100 megabits per second (million bits per second, Mbps) to 150 Mbps. The XR service also has a short delay requirement, and the air interface one-way transmission delay requirement is, for example, 5 milliseconds to 10 milliseconds. In order to meet the high-speed, low-latency, and high-reliability requirements of XR services, the performance of existing systems will be severely degraded. For example, on the basis of meeting the requirements of high speed, low delay, and high reliability, each cell system can only support a small number of XR users, which cannot meet the system user capacity requirements of future networks. In addition, due to the fluctuating characteristics of the 5G wireless channel, the fluctuating channel capacity leads to an increase in the packet error rate and delay of the XR service, which further leads to a series of problems such as stuttering, blurred screens, and black edges in the XR service. affect user experience. The simulation evaluation shows that when the channel capacity decreases, the experience performance of XR under the existing system will drop sharply, so that the user experience will deteriorate sharply.

为了满足XR业务的高速率、低时延需求，克服无线信道波动带来的影响，提升用户体验，云端服务器信源可以进行分层编码，例如H.264标准定义的可分级的视频编码(scalable video coding，SVC)和H.265标准定义的高效视频编码(high efficiency video coding，HEVC)的可伸缩延展(scalability extension of HEVC，SHVC)。SVC引入基本层(base layer，BL)和增强层(enhancement layer，EL)概念并沿用至SHVC。基本层有1个，其数据可以解出基本视频画面内容，但是帧率/分辨率/画面质量较低；增强层可以有1个或多个，其数据用于提升帧率/分辨率/画面质量。云端服务器信源产生的视频帧数据输入信源编码器，例如SVC编码器，进行信源编码。输入的视频帧数据分两路，一路进入基本层编码器，一路进入增强层编码器。整个分层编码输出2个数据流，即基本层数据流和增强层数据流。通过在核心网的用户面功能模块(user plane function，UPF)给不同数据流分配不同的服务质量(quality of service，QoS)，例如，给基本层数据流配置对时延和可靠性要求高的QoS 1，对增强层数据流配置对时延和可靠性要求低的QoS 2，这样基本层数据流在QoS流(flow)1中传输，增强层数据流在QoS Flow 2中传输。这样可以在满足基本层数据流的可靠传输的同时适当放松增强层对时延和可靠性的要求，从而在满足其低时延特性的同时提升XR业务的传输系统容量。在无线空口，考虑到基本层和增强层不同的QoS要求，通常基本层和增强层的QoS Flow分别映射到不同的无线承载来传输。In order to meet the high-speed and low-latency requirements of XR services, overcome the impact of wireless channel fluctuations, and improve user experience, cloud server sources can perform layered coding, such as scalable video coding (scalable video coding) defined by the H.264 standard. video coding (SVC) and the scalable extension of HEVC (scalability extension of HEVC, SHVC) defined by the H.265 standard. SVC introduces the concept of base layer (base layer, BL) and enhancement layer (enhancement layer, EL) and continues to use SHVC. There is one basic layer, and its data can decode the content of the basic video picture, but the frame rate/resolution/picture quality is low; there can be one or more enhancement layers, and its data is used to improve the frame rate/resolution/picture quality. The video frame data generated by the cloud server source is input to a source encoder, such as an SVC encoder, for source encoding. The input video frame data is divided into two paths, one path enters the base layer encoder, and the other path enters the enhancement layer encoder. The entire layered encoding outputs two data streams, namely the basic layer data stream and the enhancement layer data stream. By assigning different quality of service (QoS) to different data streams through the user plane function (UPF) of the core network, for example, configuring the basic layer data streams with high delay and reliability requirements QoS 1, configure QoS 2 with low delay and reliability requirements for the enhancement layer data flow, so that the basic layer data flow is transmitted in QoS flow (flow) 1, and the enhancement layer data flow is transmitted in QoS Flow 2. In this way, while satisfying the reliable transmission of the basic layer data flow, the requirements of the enhancement layer on delay and reliability can be appropriately relaxed, so that the transmission system capacity of the XR service can be improved while satisfying its low delay characteristics. On the wireless air interface, considering the different QoS requirements of the basic layer and the enhanced layer, usually the QoS flows of the basic layer and the enhanced layer are mapped to different radio bearers for transmission.

对于时延要求苛刻的高可靠业务，例如XR业务的基本层数据流传输，可能无法在接入网侧通过重传来提供可靠的传输能力，因为重传会增加时延。这时可以通过网络编码的方案在物理层之上进行额外的编码，例如，在PDCP层和RLC层之间引入网络编码，通过网络编码的方式可以在更上层对数据添加额外的冗余保护。在采用该机制后，数据在物理层解码出现错误的情况下可以继续向上层递交，在物理层解码失败的数据可以在网络编码 层进行纠错，从而保障了数据的可靠传输，进而满足低时延业务的高可靠传输。而对增强层数据流相比于基本层数据流则可以添加较少的冗余保护进行网络编码或者不进行网络编码，从而对基本层数据流和增强层数据流根据QoS需求提供不等的保护。For high-reliability services with strict latency requirements, such as the basic layer data stream transmission of XR services, it may not be possible to provide reliable transmission capabilities through retransmission on the access network side, because retransmission will increase the delay. At this time, additional coding can be performed on the physical layer through a network coding scheme. For example, network coding is introduced between the PDCP layer and the RLC layer, and additional redundancy protection can be added to data at the upper layer through network coding. After adopting this mechanism, the data can continue to be submitted to the upper layer in the case of an error in the physical layer decoding, and the data that fails to be decoded at the physical layer can be corrected at the network coding layer, thereby ensuring reliable data transmission and satisfying low-time requirements. Highly reliable transmission of extended services. Compared with the basic layer data stream, less redundant protection can be added to the enhancement layer data stream to perform network coding or not to perform network coding, so as to provide unequal protection for the basic layer data stream and the enhancement layer data stream according to the QoS requirements. .

然而，网络编码会增加大量的冗余，占用更多的空口资源，因此网络编码并不适用于所有的业务或QoS Flow。例如，终端设备正在进行传输的一部分业务适合使用网络编码，另一部分业务不适合使用网络编码。一个需要解决的问题是，终端设备的物理层不知道哪些数据需要在物理层解码失败的情况下仍向上层递交。如果不做区分，只要物理层解码出错都递交给上层，则就要求终端设备所有的业务都必须使用网络编码来进行纠错，大量的冗余占用更多的空口资源，造成空口资源的浪费。如果不进行纠错，则可能造成终端设备将错误的数据当做正确的数据而导致整个业务的传输失败。此外，在物理层解码失败的情况下MAC层可能得不到LCID，或得到错误的LCID，无法将数据递交给RLC实体或将数据递交给错误的RLC实体，从而导致传输失败或出错，进而无法充分利用网络编码的纠错能力。However, network coding will add a lot of redundancy and occupy more air interface resources, so network coding is not suitable for all services or QoS Flow. For example, a part of services being transmitted by the terminal equipment is suitable for using network coding, and another part of services is not suitable for using network coding. A problem that needs to be solved is that the physical layer of the terminal device does not know which data needs to be submitted to the upper layer even if the decoding of the physical layer fails. If no distinction is made, as long as physical layer decoding errors are submitted to the upper layer, all services of the terminal equipment must use network coding for error correction. A large amount of redundancy will occupy more air interface resources, resulting in a waste of air interface resources. If error correction is not performed, it may cause the terminal device to regard wrong data as correct data, resulting in the failure of transmission of the entire service. In addition, in the case of physical layer decoding failure, the MAC layer may not get the LCID, or get the wrong LCID, and cannot submit the data to the RLC entity or submit the data to the wrong RLC entity, resulting in transmission failure or error, and then cannot Make full use of the error correction capabilities of network coding.

鉴于此，提供本申请实施例的技术方案。下面结合附图介绍本申请实施例提供的技术方案。In view of this, the technical solutions of the embodiments of the present application are provided. The following describes the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

本申请一实施例提供一种通信方法，请参见图3，为该方法的流程图。该方法可由两个通信装置执行，这两个通信装置例如为接入网设备和终端设备。其中，接入网设备可以是基站或能够支持基站实现该方法所需的功能的通信装置(例如芯片、芯片系统或处理器)。终端设备可以是上面所述的各种形式的终端设备或能够支持终端设备实现该方法所需的功能的通信装置(例如芯片、芯片系统或处理器)。为了便于介绍，在下文的介绍中，以该方法由接入网设备和终端设备执行为例。An embodiment of the present application provides a communication method. Please refer to FIG. 3 , which is a flowchart of the method. The method can be executed by two communication devices, for example, the two communication devices are access network equipment and terminal equipment. Wherein, the access network device may be a base station or a communication device (such as a chip, a chip system or a processor) capable of supporting the base station to implement the functions required by the method. The terminal device may be the above-mentioned various forms of terminal device or a communication device (such as a chip, a chip system or a processor) capable of supporting the terminal device to implement the functions required by the method. For ease of introduction, in the following introduction, it is taken that the method is executed by the access network device and the terminal device as an example.

S310、接入网设备向终端设备发送第一指示信息，其中，第一指示信息指示终端设备递交在物理层解码失败的数据包到上层。S310. The access network device sends first indication information to the terminal device, where the first indication information instructs the terminal device to submit a data packet that fails to be decoded at the physical layer to an upper layer.

接入网设备生成第一指示信息并向终端设备发送第一指示信息。相应的，终端设备接收来自接入网设备的第一指示信息。可以理解，这里的上层指的是物理层的上层，例如，MAC层、RLC层、PDCP层或网络编码层。为了描述的方便，在本申请中以MAC层为例进行说明，但不限于MAC层，上层也可以是，例如RLC层、PDCP层或网络编码层。The access network device generates first indication information and sends the first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the access network device. It can be understood that the upper layer here refers to the upper layer of the physical layer, for example, the MAC layer, the RLC layer, the PDCP layer or the network coding layer. For the convenience of description, the MAC layer is used as an example for description in this application, but it is not limited to the MAC layer, and the upper layer may also be, for example, an RLC layer, a PDCP layer or a network coding layer.

终端设备进入了RRC连接态后，接入网设备可以给终端设备配置一个或多个无线承载。不同的无线承载可以对应不同的服务质量。例如，VR业务的基本层可以对应一个无线承载，用于提供低时延高可靠的传输。为了满足基本层的数据的低时延高可靠，基本层的数据，或者说对应基本层的承载上的数据可以采用网络编码，并且在终端设备的物理层对接收到的基本层的数据进行解码失败后可以递交给终端设备的上层。由于在物理层解码失败的数据可以在网络编码层进行纠错，从而可以消除重传导致的时延增加。VR业务的增强层可以对应另一个承载，用于提供相对放松的低时延、高可靠和高速率的传输。增强层的数据，或者说对应增强层的承载上的数据可以采用网络编码，也可以不采用网络编码。其他业务，比如语音业务，可以对应第三个承载，不采用网络编码。需要说明的是，本申请以XR业务为例进行的描述，但是不限于XR业务，也可以适用于其他业务。在本申请中，在物理层解码失败，可以是指物理层对收到的数据包进行循环冗余校验(cyclic redundancy check，CRC)失败。After the terminal device enters the RRC connection state, the access network device can configure one or more radio bearers for the terminal device. Different radio bearers may correspond to different QoS. For example, the basic layer of the VR service may correspond to a radio bearer, which is used to provide low-latency and highly reliable transmission. In order to meet the low latency and high reliability of the basic layer data, the basic layer data, or the data on the bearer corresponding to the basic layer, can adopt network coding, and decode the received basic layer data at the physical layer of the terminal device After failure, it can be submitted to the upper layer of the terminal device. Since data that fails to be decoded at the physical layer can be corrected at the network coding layer, the delay increase caused by retransmission can be eliminated. The enhanced layer of the VR service can correspond to another bearer, which is used to provide relatively relaxed low-latency, high-reliability, and high-speed transmission. The data of the enhancement layer, or the data on the bearer corresponding to the enhancement layer, may use network coding or may not use network coding. Other services, such as voice services, can correspond to the third bearer without network coding. It should be noted that the description in this application takes the XR service as an example, but it is not limited to the XR service, and may also be applicable to other services. In this application, the decoding failure at the physical layer may refer to the failure of the physical layer to perform a cyclic redundancy check (cyclic redundancy check, CRC) on the received data packet.

在一种可能的实现方式一中，接入网设备向终端设备发送RRC消息，例如RRC重配 置消息，该RRC消息包括第一指示信息。第一指示信息可以是承载级的指示信息，也就是，第一指示信息具体指示终端设备递交在某个承载上传输的并且在物理层解码失败的数据包到MAC层。在本实施例中，为了描述的方便，将这个承载称之为第一承载。第一指示信息可以包括第一承载的承载标识。接入网设备可以根据需要决定给哪些承载生成对应的第一指示信息。接入网设备可以给一个或多个承载生成对应的第一指示信息。例如，终端设备被配置了3个承载，其中承载1是用于传输VR业务基本层的数据的承载，承载2是用于传输VR业务增强层的数据的承载，承载3是用于传输其他业务，比如语音业务数据的承载，则接入网设备可以给承载1生成第一指示信息，给承载2可以生成第一指示信息，也可以不生成第一指示信息，给承载3则不生成第一指示信息。通过生成承载级的第一指示信息，可以使得针对不同的承载进行不同的处理，以满足业务的传输需求。In a possible implementation manner 1, the access network device sends an RRC message, such as an RRC reconfiguration message, to the terminal device, and the RRC message includes the first indication information. The first indication information may be bearer-level indication information, that is, the first indication information specifically instructs the terminal device to submit a data packet that is transmitted on a certain bearer and fails to be decoded at the physical layer to the MAC layer. In this embodiment, for the convenience of description, this bearer is referred to as the first bearer. The first indication information may include a bearer identifier of the first bearer. The access network device may determine which bearers to generate corresponding first indication information according to needs. The access network device may generate corresponding first indication information for one or more bearers. For example, the terminal device is configured with three bearers, where bearer 1 is used to transmit the data of the basic layer of the VR service, bearer 2 is used to transmit the data of the enhanced layer of the VR service, and bearer 3 is used to transmit other services For example, for the bearer of voice service data, the access network device can generate the first indication information for bearer 1, generate the first indication information for bearer 2, or not generate the first indication information, and do not generate the first indication information for bearer 3. Instructions. By generating the first indication information at the bearer level, different processes can be performed on different bearers, so as to meet service transmission requirements.

在另一种可能的实现方式二中，接入网设备向终端设备发送下行控制信息(downlink control information,DCI)。该DCI包括第一指示信息。第一指示信息具体指示终端设备递交该DCI调度的并且在物理层解码失败的数据包到MAC层。第一指示信息可以通过该DCI包括的内容来携带，例如，将该DCI中的某些比特用于作为第一指示信息，或者该DCI中定义一个域用于作为第一指示信息，或者在定义的这个域里分配一个或多个比特用于作为第一指示信息。第一指示信息也可以通过DCI格式来体现，例如某种类型的DCI格式可以认为是第一指示信息，当这种DCI格式的DCI用于调度数据时，终端设备知道该DCI调度的数据包在物理层解码失败时终端设备需要递交该数据包到MAC层。因此，本申请所说的第一指示信息，可以是显式的，例如该DCI包括承载第一指示信息的比特。本申请所说的第一指示信息也可以是隐式的，例如DCI格式可以认为是一种第一指示信息。通过DCI包括第一指示信息，有利于更灵活的指示哪些数据包在解码失败后递交到上层。In another possible implementation manner 2, the access network device sends downlink control information (downlink control information, DCI) to the terminal device. The DCI includes first indication information. The first indication information specifically instructs the terminal device to submit the data packet scheduled by the DCI and failing to be decoded at the physical layer to the MAC layer. The first indication information may be carried by the content included in the DCI, for example, some bits in the DCI are used as the first indication information, or a field is defined in the DCI as the first indication information, or defined in One or more bits are allocated in this field of , as the first indication information. The first indication information can also be embodied by the DCI format. For example, a certain type of DCI format can be considered as the first indication information. When the DCI in this DCI format is used to schedule data, the terminal device knows that the data packet scheduled by the DCI is in the When the physical layer decoding fails, the terminal device needs to submit the data packet to the MAC layer. Therefore, the first indication information mentioned in this application may be explicit, for example, the DCI includes bits carrying the first indication information. The first indication information mentioned in this application may also be implicit, for example, the DCI format may be regarded as a kind of first indication information. The inclusion of the first indication information in the DCI is beneficial to more flexibly indicate which data packets are delivered to the upper layer after the decoding fails.

S320、接入网设备向终端设备发送第一数据包。S320. The access network device sends the first data packet to the terminal device.

相应的，终端设备接收该第一数据包。第一数据包在第一承载上传输。Correspondingly, the terminal device receives the first data packet. The first data packet is transmitted on the first bearer.

当接入网设备需要向终端设备发送第一数据包时，接入网设备通过例如物理下行控制信道(physical downlink control channel，PDCCH)向终端设备发送DCI，为了描述的方便，这里称之为第一DCI。第一DCI包括调度第一数据包的调度信息。可以理解的是，对应步骤S310的实现方式二，第一DCI可以是步骤S310里的DCI。接入网设备例如在物理下行共享信道(physical downlink share channel，PDSCH)上发送第一数据包。终端设备首先从PDCCH接收到第一DCI，从第一DCI里获知针对该终端设备的第一数据包的调度信息，根据调度信息接收PDSCH上承载的第一数据包。When the access network device needs to send the first data packet to the terminal device, the access network device sends DCI to the terminal device through, for example, a physical downlink control channel (PDCCH). For the convenience of description, it is referred to as the first packet here. a DCI. The first DCI includes scheduling information for scheduling the first data packet. It can be understood that, corresponding to the second implementation manner of step S310, the first DCI may be the DCI in step S310. The access network device sends the first data packet, for example, on a physical downlink shared channel (physical downlink share channel, PDSCH). The terminal device first receives the first DCI from the PDCCH, obtains the scheduling information of the first data packet for the terminal device from the first DCI, and receives the first data packet carried on the PDSCH according to the scheduling information.

S330、当第一数据包在物理层解码失败时，终端设备基于第一指示信息递交第一数据包到MAC层。S330. When the first data packet fails to be decoded at the physical layer, the terminal device delivers the first data packet to the MAC layer based on the first indication information.

当第一数据包在物理层解码失败时，传统的做法是终端设备不向上层递交第一数据包。在本实施例中，如果第一数据包在物理层解码失败，则终端设备确定是否接收到了对应的第一指示信息，如果终端设备接收到了对应的第一指示信息，则递交第一数据包到MAC层。如果终端设备没有接收到对应的第一指示信息，则不递交第一数据包。When the first data packet fails to be decoded at the physical layer, the traditional method is that the terminal device does not submit the first data packet to the upper layer. In this embodiment, if the first data packet fails to be decoded at the physical layer, the terminal device determines whether it has received the corresponding first indication information, and if the terminal device receives the corresponding first indication information, then submits the first data packet to MAC layer. If the terminal device does not receive the corresponding first indication information, it does not deliver the first data packet.

具体的，对应步骤S310中的实现方式一，终端设备首先获取第一数据包的承载的标识信息(具体可以参见本申请中图5对应的实施例)，然后确定是否接收到了对应该承载的第一指示信息。如果接收到了该数据包的承载对应的第一指示信息，则终端设备的物理层递交第一数据包到MAC层。如果没有接收到该数据包的承载对应的第一指示信息，则 终端设备的物理层不递交第一数据包。对应步骤S310中的实现方式二，终端设备确定调度第一数据包的DCI，也就是第一DCI，是否包括第一指示信息。如果第一DCI包括第一指示信息，则终端设备的物理层递交第一数据包到MAC层，如果第一DCI不包括第一指示信息，则不递交第一数据包。需要说明的是，这里所说的第一指示信息，包括显式的第一指示信息或隐式的第一指示信息，可以参见步骤S310相关的描述，这里不再赘述。Specifically, corresponding to the first implementation in step S310, the terminal device first obtains the identification information of the bearer of the first data packet (for details, refer to the embodiment corresponding to FIG. 5 in this application), and then determines whether the first packet corresponding to the bearer is received. 1. Instructions. If the first indication information corresponding to the bearer of the data packet is received, the physical layer of the terminal device delivers the first data packet to the MAC layer. If the first indication information corresponding to the bearer of the data packet is not received, the physical layer of the terminal device does not deliver the first data packet. Corresponding to the second implementation in step S310, the terminal device determines whether the DCI for scheduling the first data packet, that is, the first DCI, includes the first indication information. If the first DCI includes the first indication information, the physical layer of the terminal device delivers the first data packet to the MAC layer, and if the first DCI does not include the first indication information, the first data packet is not delivered. It should be noted that the first indication information mentioned here includes explicit first indication information or implicit first indication information, and reference may be made to the related description of step S310, which will not be repeated here.

在本申请中，物理层解码成功的数据包将会递交给MAC层，在物理层解码失败的数据包也可以递交给MAC层。可选的，在本申请中，MAC层获知从物理层收到的数据包是解码成功的数据包，还是解码失败的数据包。如图4所示，物理层除了递交数据包给MAC层外，还可以递交对应该数据包的第二指示信息给MAC层，第二指示信息指示该数据包在物理层解码成功或在物理层解码失败，从而MAC层可以获知从物理层收到的数据包是解码成功的数据包，还是解码失败的数据包。In this application, the data packets successfully decoded at the physical layer will be delivered to the MAC layer, and the data packets failed to be decoded at the physical layer can also be delivered to the MAC layer. Optionally, in this application, the MAC layer knows whether the data packet received from the physical layer is a successfully decoded data packet or a decoded failed data packet. As shown in Figure 4, in addition to submitting the data packet to the MAC layer, the physical layer can also submit the second indication information corresponding to the data packet to the MAC layer. Decoding fails, so that the MAC layer can know whether the data packet received from the physical layer is a successfully decoded data packet or a decoded failed data packet.

在一种可能的实现方式中，当数据包在物理层解码失败时，物理层除了将该数据包递交给MAC层外，还递交对应该数据包的第二指示信息，第二指示信息指示该数据包在物理层解码失败。当数据包在物理层解码成功时，不递交对应的第二指示信息。对于没有对应的第二指示信息的数据包，MAC层认为是解码成功的数据包。In a possible implementation manner, when the data packet fails to be decoded at the physical layer, the physical layer not only submits the data packet to the MAC layer, but also submits second indication information corresponding to the data packet, and the second indication information indicates that the The packet failed to decode at the physical layer. When the data packet is successfully decoded at the physical layer, the corresponding second indication information is not delivered. For a data packet without corresponding second indication information, the MAC layer regards it as a successfully decoded data packet.

在另一种可能的实现方式中，当数据包在物理层解码成功时，除了将该数据包递交给MAC层外，还递交对应该数据包的第二指示信息，第二指示信息指示该数据包在物理层解码成功。当数据包在物理层解码失败时，不递交对应的第二指示信息。对于没有对应的第二指示信息的数据包，MAC层认为是解码失败的数据包。In another possible implementation, when the data packet is successfully decoded at the physical layer, in addition to submitting the data packet to the MAC layer, second indication information corresponding to the data packet is also submitted, and the second indication information indicates that the data packet The packet was successfully decoded at the physical layer. When the data packet fails to be decoded at the physical layer, the corresponding second indication information is not delivered. For a data packet without corresponding second indication information, the MAC layer regards it as a data packet that fails to be decoded.

在又一种可能的实现方式中，无论数据包在物理层解码成功还是解码失败，除了将该数据包递交给MAC层外，还递交对应该数据包的第二指示信息，第二指示信息指示该数据包是解码成功还是解码失败。例如，第二指示信息指示1或true时，表示解码成功，指示0或false时，表示解码失败。或者第二指示信息指示0或false时，表示解码成功，指示1或true时，表示解码失败。In yet another possible implementation, regardless of whether the data packet is successfully decoded or fails to be decoded at the physical layer, in addition to submitting the data packet to the MAC layer, the second indication information corresponding to the data packet is also submitted, and the second indication information indicates Whether the packet was decoded successfully or failed. For example, when the second indication information indicates 1 or true, it indicates that the decoding is successful, and when it indicates 0 or false, it indicates that the decoding fails. Alternatively, when the second indication information indicates 0 or false, it indicates that the decoding is successful, and when it indicates 1 or true, it indicates that the decoding fails.

通过上述方法，MAC层或更上层可以区分哪些数据包是在物理层解码失败的，哪些数据包是在物理层解码成功的，从而可以执行不同的处理，以提高处理效率，减少不必要的处理资源浪费。例如，对于解码失败的数据包进行纠错操作，而对于解码成功的数据包不进行纠错操作。需要说明的是，上述MAC层进行区分并获知数据包解码成功或失败的方法，可以与图3对应的实施例结合使用(例如，图4中数据包可以是第一数据包)，也可以作为一个单独的实施例来实施。需要说明的是，上述方法可以适用于终端设备，即终端设备的MAC层区分从终端设备的物理层接收的数据包是解码成功的数据包还是解码失败的数据包。终端设备的物理层向终端设备的MAC层递交第二指示信息。当作为单独的实施例时，也可以适用于接入网设备，即在接入网设备的物理层需要将在物理层解码失败的数据包递交给接入网设备的MAC层的场景下，接入网设备的MAC层区分从接入网设备的物理层接收的数据包是解码成功的数据包还是解码失败的数据包。接入网设备的物理层向接入网设备的MAC层递交第二指示信息。Through the above method, the MAC layer or the upper layer can distinguish which data packets fail to be decoded at the physical layer, and which data packets are successfully decoded at the physical layer, so that different processing can be performed to improve processing efficiency and reduce unnecessary processing Waste of resources. For example, an error correction operation is performed on a data packet that fails to be decoded, but an error correction operation is not performed on a data packet that is successfully decoded. It should be noted that, the above-mentioned method for the MAC layer to distinguish and know whether the decoding of the data packet succeeds or fails can be used in conjunction with the embodiment corresponding to FIG. 3 (for example, the data packet in FIG. 4 can be the first data packet), or can be used as A separate embodiment is implemented. It should be noted that the above method can be applied to the terminal device, that is, the MAC layer of the terminal device distinguishes whether the data packet received from the physical layer of the terminal device is a successfully decoded data packet or a decoded failed data packet. The physical layer of the terminal device submits the second indication information to the MAC layer of the terminal device. When used as a separate embodiment, it can also be applied to access network equipment, that is, in the scenario where the physical layer of the access network equipment needs to deliver the data packet that fails to be decoded at the physical layer to the MAC layer of the access network equipment, then The MAC layer of the network access device distinguishes whether the data packet received from the physical layer of the access network device is a successfully decoded data packet or a decoded failed data packet. The physical layer of the access network device submits the second indication information to the MAC layer of the access network device.

在本实施例中，接入网设备向终端设备发送第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到MAC层。当数据包在物理层解码失败时，终端设备基于第一指示信息递交该数据包到MAC层。通过接入网设备配置哪些数据包在物理层解码失败时递交给MAC层，而另外的数据包在解码失败时不递交，有利于低时延业务的高可靠传输， 减少终端设备所有的业务使用网络编码进行纠错而造成的空口资源的浪费。In this embodiment, the access network device sends first indication information to the terminal device, where the first indication information indicates to deliver the data packet that fails to be decoded at the physical layer to the MAC layer. When the data packet fails to be decoded at the physical layer, the terminal device delivers the data packet to the MAC layer based on the first indication information. Configure which data packets are submitted to the MAC layer when the physical layer decoding fails through the access network device, and other data packets are not submitted when the decoding fails, which is conducive to the highly reliable transmission of low-latency services and reduces the use of all services of terminal equipment The waste of air interface resources caused by network coding error correction.

终端设备的MAC层在收到终端设备的物理层递交的MAC PDU后，解析该MAC PDU并获取到LCID，根据LCID将数据递交给对应的RLC实体，然而，在有些场景下，在物理层解码错误的数据包递交给MAC层，MAC层在将该数据包作为一个MAC PDU进行解析时，可能会得到一个错误的LCID。例如MAC PDU中的LCID信元出现了传输错误，导致MAC层获取到一个错误的LCID，或者MAC PDU中的其他信元出现了传输错误导致解析出现错位，从而解析出了一个错误的LCID。在这种情况下，可能出现MAC层将数据递交给错误的RLC实体，导致数据传输错误。After receiving the MAC PDU submitted by the physical layer of the terminal device, the MAC layer of the terminal device parses the MAC PDU and obtains the LCID, and submits the data to the corresponding RLC entity according to the LCID. However, in some scenarios, decoding at the physical layer The wrong data packet is submitted to the MAC layer, and the MAC layer may get a wrong LCID when parsing the data packet as a MAC PDU. For example, the LCID cell in the MAC PDU has a transmission error, which causes the MAC layer to obtain a wrong LCID, or other cells in the MAC PDU have a transmission error that causes a dislocation in the parsing, thus parsing a wrong LCID. In this case, it may occur that the MAC layer submits data to a wrong RLC entity, resulting in a data transmission error.

此外，在图3对应的实施例中，对应步骤S310中的实现方式一，即第一指示信息是承载级的指示信息这种情况，当一个数据包在物理层解码失败时，在步骤S330中，终端设备(具体的，终端设备的物理层)需要确定是否接收到了对应在物理层解码失败的数据包的承载的第一指示信息，以决定是否将该解码失败的数据包递交给MAC层。如果接收到了该承载对应的第一指示信息，则终端设备的物理层递交该解码失败的数据包到MAC层。如果没有接收到该承载对应的第一指示信息，则终端设备的物理层不递交该解码失败的数据包。这就要求终端设备的物理层首先需要获知该解码失败的数据包属于哪个承载。然而，终端设备的物理层并不知道一个数据包属于哪个承载。In addition, in the embodiment corresponding to FIG. 3 , corresponding to the first implementation in step S310, that is, in the case where the first indication information is bearer-level indication information, when a data packet fails to be decoded at the physical layer, in step S330 , The terminal device (specifically, the physical layer of the terminal device) needs to determine whether the first indication information corresponding to the bearer of the data packet that fails to be decoded at the physical layer is received, so as to decide whether to deliver the data packet that fails to be decoded to the MAC layer. If the first indication information corresponding to the bearer is received, the physical layer of the terminal device delivers the data packet that fails to be decoded to the MAC layer. If the first indication information corresponding to the bearer is not received, the physical layer of the terminal device does not deliver the data packet that fails to be decoded. This requires that the physical layer of the terminal device first needs to know which bearer the data packet that fails to decode belongs to. However, the physical layer of the end device does not know which bearer a data packet belongs to.

鉴以此，本申请又一实施例提供一种通信方法，请参见图5，为该方法的流程图。该方法可由两个通信装置执行，这两个通信装置例如为接入网设备和终端设备。其中，接入网设备可以是基站或能够支持基站实现该方法所需的功能的通信装置(例如芯片、芯片系统或处理器)。终端设备可以是上面所述的各种形式的终端设备或能够支持终端设备实现该方法所需的功能的通信装置(例如芯片、芯片系统或处理器)。为了便于介绍，在下文的介绍中，以该方法由接入网设备和终端设备执行为例。In view of this, another embodiment of the present application provides a communication method. Please refer to FIG. 5 , which is a flowchart of the method. The method can be executed by two communication devices, for example, the two communication devices are access network equipment and terminal equipment. Wherein, the access network device may be a base station or a communication device (such as a chip, a chip system or a processor) capable of supporting the base station to implement the functions required by the method. The terminal device may be the above-mentioned various forms of terminal device or a communication device (such as a chip, a chip system or a processor) capable of supporting the terminal device to implement the functions required by the method. For ease of introduction, in the following introduction, it is taken that the method is executed by the access network device and the terminal device as an example.

S510、接入网设备向终端设备发送第二DCI，该第二DCI用于调度第二数据包。S510. The access network device sends the second DCI to the terminal device, where the second DCI is used to schedule the second data packet.

接入网设备生成第二DCI并向终端设备发送第二DCI。相应的，终端设备接收该第二DCI。The access network device generates the second DCI and sends the second DCI to the terminal device. Correspondingly, the terminal device receives the second DCI.

在一种可能的实现方式一中，第二DCI包括第二数据包的承载的标识信息，该承载的标识信息可以是承载标识，或者是承载的LCID。In a possible implementation manner 1, the second DCI includes identification information of a bearer of the second data packet, and the identification information of the bearer may be a bearer identifier or an LCID of the bearer.

在另一种可能的实现方式二中，第二DCI包括第二数据包的承载的标识信息，该承载的标识信息可以是承载的LCID索引，或者是承载索引。LCID索引或承载索引占用的比特可以比对应的LCID或对应的承载标识占用的比特更少，因此节省了第二DCI的比特开销。例如，LCID占用5比特，可以支持接入网设备给终端设备配置最多32个承载。考虑到不是所有承载的数据都需要在DCI里携带标识信息，因此LCID索引可以占用更少的比特，例如占用2比特，相比直接在DCI中使用5比特指示LCID，节省了3比特的信令开销。In another possible implementation manner 2, the second DCI includes identification information of a bearer of the second data packet, and the identification information of the bearer may be an LCID index of the bearer, or a bearer index. The bits occupied by the LCID index or the bearer index may be less than the bits occupied by the corresponding LCID or the corresponding bearer identifier, thus saving the bit overhead of the second DCI. For example, the LCID occupies 5 bits, and can support the access network device to configure up to 32 bearers for the terminal device. Considering that not all carried data needs to carry identification information in DCI, the LCID index can occupy fewer bits, for example, occupying 2 bits, which saves 3 bits of signaling compared to directly using 5 bits in DCI to indicate LCID overhead.

在又一种可能的实现方式三中，第二DCI的DCI格式与第二数据包的承载标识或LCID存在对应关系。例如，接入网设备可以配置某种DCI的DCI格式与某个承载标识或某个LCID存在对应关系。In yet another possible implementation manner 3, there is a corresponding relationship between the DCI format of the second DCI and the bearer identifier or LCID of the second data packet. For example, the access network device may be configured to have a corresponding relationship between a DCI format of a certain DCI and a certain bearer identifier or a certain LCID.

S520、接入网设备向终端设备发送第二数据包。S520. The access network device sends the second data packet to the terminal device.

相应的，终端设备接收该第二数据包。Correspondingly, the terminal device receives the second data packet.

需要说明的是，第二DCI和第二数据包可以是在同一个传输时间单元，例如时隙里发 送，也可以在不同的传输时间单元里发送。第二DCI调度的数据，也就是第二数据包，可以是属于同一个承载的数据。可选的，第二数据包包括一个MAC PDU,该MAC PDU，或者说该MAC PDU里的MAC子PDU的MAC子头可以不包括LCID，以节省空口的开销。或者该MAC PDU，或者说该MAC PDU里的MAC子PDU的MAC子头包括LCID，但是考虑到该LCID可能有误，在终端设备将解码失败的数据包递交到终端设备的MAC层后，终端设备的MAC层可以忽略该LCID，这里的忽略可以是MAC层解码该LCID，但是不使用该LCID确定对应的RLC实体，或者MAC层不解码该LCID。It should be noted that the second DCI and the second data packet may be sent in the same transmission time unit, such as a time slot, or may be sent in different transmission time units. The data scheduled by the second DCI, that is, the second data packet, may be data belonging to the same bearer. Optionally, the second data packet includes a MAC PDU, and the MAC subheader of the MAC PDU, or the MAC sub-PDU in the MAC PDU may not include the LCID, so as to save the overhead of the air interface. Or the MAC PDU, or the MAC sub-header of the MAC sub-PDU in the MAC PDU includes LCID, but considering that the LCID may be wrong, after the terminal device submits the failed decoding data packet to the MAC layer of the terminal device, the terminal The MAC layer of the device may ignore the LCID. The ignoring here may mean that the MAC layer decodes the LCID but does not use the LCID to determine the corresponding RLC entity, or the MAC layer does not decode the LCID.

S530、终端设备基于第二DCI获取第二数据包的承载的标识信息。S530. The terminal device acquires the identification information of the bearer of the second data packet based on the second DCI.

终端设备的物理层可以基于第二DCI获取第二数据包的承载的标识信息。The physical layer of the terminal device may acquire the identification information of the bearer of the second data packet based on the second DCI.

对应于步骤S510的实现方式一，终端设备的物理层可以从第二DCI的内容中获取第二数据包的承载的标识信息，即第二数据包的承载的承载标识或者承载的LCID。Corresponding to the first implementation of step S510, the physical layer of the terminal device may acquire the bearer identification information of the second data packet from the content of the second DCI, that is, the bearer identifier or LCID of the bearer of the second data packet.

对应于步骤S510的实现方式二，终端设备的物理层可以从第二DCI的内容中获取第二数据包的承载的标识信息，即第二数据包的承载的承载索引或者LCID索引，基于第二数据包的承载索引或者LCID索引，可以进一步获取到第二数据包的承载标识或者LCID。Corresponding to the second implementation of step S510, the physical layer of the terminal device can obtain the identification information of the bearer of the second data packet from the content of the second DCI, that is, the bearer index or LCID index of the bearer of the second data packet, based on the second The bearer index or LCID index of the data packet may further obtain the bearer identifier or LCID of the second data packet.

对应于步骤S510的实现方式三，终端设备的物理层基于第二DCI的DCI格式，可以获取到第二数据包的承载标识或者LCID。Corresponding to the third implementation manner of step S510, the physical layer of the terminal device may obtain the bearer identifier or LCID of the second data packet based on the DCI format of the second DCI.

在上述实现方式二和实现方式三中，为了能基于第二数据包的承载索引或者LCID索引获取到第二数据包的承载标识或者LCID，或者能基于第二DCI的DCI格式获取到第二数据包的承载标识或者LCID，图5示意的方法还包括步骤S500：In the second and third implementations above, in order to obtain the bearer identifier or LCID of the second data packet based on the bearer index or LCID index of the second data packet, or to obtain the second data based on the DCI format of the second DCI The bearer identifier or LCID of the packet, the method illustrated in FIG. 5 also includes step S500:

S500、终端设备获得对应关系。S500. The terminal device obtains the corresponding relationship.

终端设备获取对应关系，例如，这个对应关系可以是协议预定义的，或者，这个对应关系可以是接入网设备配置的。该对应关系可以包括1个或多个对应关系。The terminal device obtains the corresponding relationship, for example, the corresponding relationship may be predefined by the protocol, or the corresponding relationship may be configured by the access network device. The correspondence may include one or more correspondences.

对应于步骤S510的实现方式二，该对应关系可以包括承载索引与承载标识的对应关系，或者LCID索引与LCID的对应关系。可选的，该对应关系至少包括第二数据包的承载的承载索引与承载标识的对应关系，或者该对应关系至少包括第二数据包的承载的LCID索引与承载的LCID的对应关系。终端设备(例如，终端设备的物理层，或者终端设备的MAC层)基于该对应关系(或者说第二数据包的承载的承载索引与承载标识的对应关系)和第二数据包的承载的承载索引获取第二数据包的承载的承载标识，或者基于该对应关系(或者说第二数据包的承载的LCID索引与承载的LCID的对应关系)和第二数据包的承载的LCID索引获取第二数据包的承载的LCID。表1是该对应关系包括LCID索引与LCID的对应关系的一个例子。以表1为例，如果终端设备从第二DCI中获取到的LCID索引为1，则根据该对应关系，即表1，得到第二数据包的承载的LCID为30。Corresponding to the second implementation manner of step S510, the correspondence may include a correspondence between a bearer index and a bearer identifier, or a correspondence between an LCID index and an LCID. Optionally, the correspondence includes at least the correspondence between the bearer index of the second data packet and the bearer identifier, or the correspondence includes at least the correspondence between the LCID index of the second data packet and the LCID of the bearer. The terminal device (for example, the physical layer of the terminal device, or the MAC layer of the terminal device) based on the corresponding relationship (or the corresponding relationship between the bearer index and the bearer identifier of the bearer of the second data packet) and the bearer of the bearer of the second data packet The index obtains the bearer identifier of the bearer of the second data packet, or obtains the second The LCID of the bearer of the packet. Table 1 is an example of the corresponding relationship including the corresponding relationship between LCID index and LCID. Taking Table 1 as an example, if the LCID index obtained by the terminal device from the second DCI is 1, then according to the corresponding relationship, that is, Table 1, it is obtained that the LCID carried by the second data packet is 30.

表1Table 1

LCID索引(2比特)LCID index (2 bits)LCID(5比特)LCID (5 bits)1130302288

对应于步骤S510的实现方式三，该对应关系可以包括DCI格式与承载的对应关系，具体的，可以是DCI格式与承载标识或LCID的对应关系。可选的，该对应关系至少包括第二DCI的DCI格式与承载标识或LCID的对应关系。终端设备(例如，终端设备的物理 层，或者终端设备的MAC层)基于该对应关系(或者说第二DCI的DCI格式与承载标识或LCID的对应关系)和第二DCI的DCI格式可以获取或者说确定第二数据包的承载的标识信息，例如承载标识或LCID。表2是该对应关系包括DCI格式与LCID的对应关系一个例子。以表2为例，如果终端设备获取到第二DCI的DCI格式为“DCI格式X”，则终端设备根据该对应关系，即表2，获取到第二数据包的承载的LCID为10。Corresponding to the third implementation manner of step S510, the corresponding relationship may include the corresponding relationship between the DCI format and the bearer, specifically, it may be the corresponding relationship between the DCI format and the bearer ID or LCID. Optionally, the correspondence includes at least a correspondence between the DCI format of the second DCI and the bearer identifier or LCID. The terminal device (for example, the physical layer of the terminal device, or the MAC layer of the terminal device) can acquire or Said to determine the identification information of the bearer of the second data packet, for example, the bearer identifier or LCID. Table 2 is an example of the corresponding relationship including the corresponding relationship between the DCI format and the LCID. Taking Table 2 as an example, if the DCI format of the second DCI obtained by the terminal device is "DCI format X", the terminal device obtains the LCID of the bearer of the second data packet as 10 according to the corresponding relationship, that is, Table 2.

表2Table 2

DCI格式DCI formatLCIDLCIDDCI格式XDCI format X1010DCI格式YDCI format Y55

需要说明的是，本实施例可以与图3对应的实施例结合实施，也可以单独实施。当与图3对应的实施例结合实施时，第二DCI可以与第一DCI是相同的DCI，第二数据包可以与第一数据包是相同的数据包。当本实施例单独实施时，第二DCI与第一DCI是不同的DCI，第二数据包与第一数据包是不同的数据包。It should be noted that this embodiment may be implemented in combination with the embodiment corresponding to FIG. 3 , or may be implemented independently. When implemented in combination with the embodiment corresponding to FIG. 3 , the second DCI may be the same DCI as the first DCI, and the second data packet may be the same data packet as the first data packet. When this embodiment is implemented independently, the second DCI is a different DCI from the first DCI, and the second data packet is a different data packet from the first data packet.

可选的，结合图3对应的实施例，对应步骤S310中的实现方式一，在步骤S530后，终端设备的物理层在第二数据包，即图3对应的实施例中的第一数据包，在物理层解码失败后，根据步骤S530中获取的第二数据包的承载的承载标识或LCID，确定是否为该承载配置了对应的第一指示信息，以决定是否将在物理层解码失败后的第二数据包递交给终端设备的MAC层。Optionally, in combination with the embodiment corresponding to FIG. 3 , corresponding to the first implementation in step S310, after step S530, the physical layer of the terminal device is included in the second data packet, that is, the first data packet in the embodiment corresponding to FIG. 3 , after the physical layer decoding fails, according to the bearer identifier or LCID of the bearer of the second data packet obtained in step S530, determine whether the corresponding first indication information is configured for the bearer, so as to determine whether to The second data packet is delivered to the MAC layer of the terminal device.

可选的，在步骤S530后，终端设备的物理层除了将第二数据包递交给终端设备的MAC层外，还递交第二数据包的承载的标识信息(例如，承载索引，或LCID索引，或承载标识，或者LCID)或第二DCI的DCI格式给终端设备的MAC层，从而使得终端设备的MAC层据此获知或基于对应关系获知第二数据包的承载信息，例如第二数据包的承载的LCID。当结合图3对应的实施例时，基于MAC层获取到的第二数据包的承载信息，终端设备的MAC层可以将第二数据包解析后的数据递交给该承载信息对应的RLC实体，从而消除错误的LCID引起的传输错误。Optionally, after step S530, in addition to submitting the second data packet to the MAC layer of the terminal device, the physical layer of the terminal device also submits the identification information of the bearer of the second data packet (for example, a bearer index, or an LCID index, or bearer identification, or LCID) or the DCI format of the second DCI to the MAC layer of the terminal device, so that the MAC layer of the terminal device learns the bearer information of the second data packet accordingly or based on the corresponding relationship, such as the second data packet. The LCID of the bearer. When combined with the embodiment corresponding to FIG. 3, based on the bearer information of the second data packet obtained by the MAC layer, the MAC layer of the terminal device may submit the parsed data of the second data packet to the RLC entity corresponding to the bearer information, thereby Eliminates transmission errors caused by incorrect LCIDs.

下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。The following describes the devices used to implement the above methods in the embodiments of the present application with reference to the accompanying drawings. Therefore, all the content above can be used in subsequent embodiments, and repeated content will not be repeated.

图6为本申请实施例提供的通信装置600的示意性框图。该通信装置600可以对应实现上述各个方法实施例中由第一终端设备或第二终端设备实现的功能或者步骤。FIG. 6 is a schematic block diagram of acommunication device 600 provided by an embodiment of the present application. Thecommunication apparatus 600 may correspondingly implement the functions or steps implemented by the first terminal device or the second terminal device in the foregoing method embodiments.

在一些可能的实现方式中，该通信装置可以包括发送单元610、接收单元620和处理单元630中的一个或多个。可选的，还可以包括存储单元，该存储单元可以用于存储指令(代码或者程序)和/或数据。发送单元610、接收单元620和处理单元630可以与该存储单元耦合，例如，处理单元630可以读取存储单元中的指令(代码或者程序)和/或数据，以实现相应的方法。上述各个单元可以独立设置，也可以部分或者全部集成。In some possible implementation manners, the communications device may include one or more of a sendingunit 610 , a receivingunit 620 , and aprocessing unit 630 . Optionally, a storage unit may also be included, and the storage unit may be used to store instructions (code or program) and/or data. The sendingunit 610, the receivingunit 620, and theprocessing unit 630 may be coupled to the storage unit, for example, theprocessing unit 630 may read instructions (code or program) and/or data in the storage unit to implement corresponding methods. Each of the above units can be set independently, or can be partially or fully integrated.

在一些可能的实施方式中，通信装置600能够对应实现上述方法实施例中终端设备的行为和功能。例如通信装置600可以为终端设备，也可以为应用于终端设备中的部件(例如芯片或者电路)。发送单元610和接收单元620可以分别用于执行上述方法实施例中由终端设备所执行的发送或者接收操作，例如图3所示的实施例中的S310和S320，或图5所示的实施例中的S500、S510和S520，和/或用于支持本文所描述的技术的其它过程。其 中，处理单元630用于执行上述方法实施例中由终端设备所执行的除了收发操作之外的操作，和/或用于支持本文所描述的技术的其它过程。In some possible implementation manners, thecommunication apparatus 600 can correspondingly implement the behaviors and functions of the terminal device in the foregoing method embodiments. For example, thecommunication apparatus 600 may be a terminal device, or may be a component (such as a chip or a circuit) applied in the terminal device. The sendingunit 610 and the receivingunit 620 can be used to respectively perform the sending or receiving operations performed by the terminal device in the above method embodiments, such as S310 and S320 in the embodiment shown in FIG. 3 , or the embodiment shown in FIG. 5 S500, S510, and S520 in, and/or other processes for supporting the techniques described herein. Wherein, theprocessing unit 630 is configured to execute the operations performed by the terminal device in the above method embodiments except for the transceiving operation, and/or other processes for supporting the technologies described herein.

在一些可能的实施例中，接收单元620用于接收来自接入网设备的第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层、RLC层、PDCP层或网络编码层，接收单元620还用于接收来自接入网设备的第一数据包。In some possible embodiments, the receivingunit 620 is configured to receive the first indication information from the access network device, the first indication information indicates that the data packet that fails to be decoded at the physical layer is delivered to the upper layer, and the upper layer may include a MAC layer and an RLC layer , PDCP layer or network coding layer, and the receivingunit 620 is further configured to receive the first data packet from the access network device.

处理单元630用于当第一数据包在物理层解码失败时基于第一指示信息递交第一数据包到上层。Theprocessing unit 630 is configured to deliver the first data packet to the upper layer based on the first indication information when the first data packet fails to be decoded at the physical layer.

在一些可能的实施例中，接收单元620用于用于接收来自接入网设备的第二DCI，接收单元620还用于接收来自接入网设备的第二数据包，第二数据包是第二DCI调度的数据包。In some possible embodiments, the receivingunit 620 is configured to receive the second DCI from the access network device, the receivingunit 620 is also configured to receive the second data packet from the access network device, the second data packet is the first Two DCI scheduled packets.

处理单元630用于在物理层基于第二DCI获取第二数据包的承载的标识信息。Theprocessing unit 630 is configured to acquire the identification information of the bearer of the second data packet based on the second DCI at the physical layer.

应理解，本申请实施例中的处理单元630可以由至少一个处理器或处理器相关电路组件实现，发送单元610和接收单元620可以由收发器或收发器相关电路组件或者通信接口实现。It should be understood that theprocessing unit 630 in this embodiment of the present application may be implemented by at least one processor or processor-related circuit components, and the sendingunit 610 and the receivingunit 620 may be implemented by transceivers or transceiver-related circuit components or communication interfaces.

在一些可能的实施方式中，通信装置600能够对应实现上述方法实施例中接入网设备的行为和功能。例如通信装置600可以为接入网设备，也可以为应用于接入网设备中的部件(例如芯片或者电路)。发送单元610和接收单元620可以分别用于执行上述方法实施例中由接入网设备所执行的发送或者接收操作，例如图3所示的实施例中的S310和S320，或图5所示的实施例中的S500、S510和S520，和/或用于支持本文所描述的技术的其它过程。其中，处理单元630用于执行上述方法实施例中由接入网设备所执行的除了收发操作之外的操作，和/或用于支持本文所描述的技术的其它过程。In some possible implementation manners, thecommunications apparatus 600 can correspondingly implement the behaviors and functions of the access network device in the foregoing method embodiments. For example, thecommunication apparatus 600 may be an access network device, or may be a component (such as a chip or a circuit) applied in the access network device. The sendingunit 610 and the receivingunit 620 may be respectively used to perform the sending or receiving operations performed by the access network device in the above method embodiments, such as S310 and S320 in the embodiment shown in FIG. 3 , or the operation shown in FIG. 5 S500, S510, and S520 in an embodiment, and/or other processes for supporting the techniques described herein. Wherein, theprocessing unit 630 is configured to execute the operations performed by the access network device in the foregoing method embodiments except for the transceiving operation, and/or other processes for supporting the technologies described herein.

在一些可能的实施例中，处理单元630用于生成第一指示信息；发送单元610用于向终端设备发送第一指示信息，第一指示信息指示递交在物理层解码失败的数据包到上层，上层可以包括MAC层，RLC层、PDCP层或网络编码层。In some possible embodiments, theprocessing unit 630 is configured to generate the first indication information; the sendingunit 610 is configured to send the first indication information to the terminal device, the first indication information indicates that the data packet that fails to be decoded at the physical layer is delivered to the upper layer, The upper layer may include a MAC layer, an RLC layer, a PDCP layer or a network coding layer.

在一些可能的实施例中，处理单元630用于生成第二DCI；发送单元610用于用于向终端设备发送第二DCI，第二DCI包括第二DCI调度的数据包的承载的标识信息发送单元。In some possible embodiments, theprocessing unit 630 is configured to generate the second DCI; the sendingunit 610 is configured to send the second DCI to the terminal device, and the second DCI includes the identification information of the bearer of the data packet scheduled by the second DCI. unit.

应理解，本申请实施例中的发送单元610可以由收发器或收发器相关电路组件或者通信接口实现。It should be understood that the sendingunit 610 in the embodiment of the present application may be implemented by a transceiver or a transceiver-related circuit component or a communication interface.

上述实施例中的存储单元可以通过存储器实现。The storage unit in the foregoing embodiments may be implemented by a memory.

如图7所示，为本申请实施例提供的通信装置700，通信装置700可以是接入网设备，能够实现本申请实施例提供的方法中接入网设备的功能，或者，通信装置700可以是终端设备，能够实现本申请实施例提供的方法中终端设备的功能；通信装置700也可以是能够支持接入网设备实现本申请实施例提供的方法中对应的功能的装置，或者能够支持终端设备实现本申请实施例提供的方法中对应的功能的装置。其中，该通信装置700可以为芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。As shown in FIG. 7, the communication device 700 provided in the embodiment of the present application may be an access network device capable of realizing the functions of the access network device in the method provided in the embodiment of the present application, or the communication device 700 may be It is a terminal device that can realize the functions of the terminal device in the method provided by the embodiment of the present application; the communication device 700 can also be a device that can support the access network device to implement the corresponding function in the method provided by the embodiment of the present application, or can support the terminal The device is an apparatus for realizing the corresponding functions in the method provided by the embodiment of the present application. Wherein, the communication device 700 may be a system on a chip. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.

通信装置700包括至少一个处理器720，用于实现或用于支持通信装置700实现本申请实施例提供的方法中接入网设备或终端设备的功能。具体参见方法示例中的详细描述，此处不做赘述。The communication device 700 includes at least oneprocessor 720, configured to implement or support the communication device 700 to implement the functions of the access network device or the terminal device in the method provided in the embodiment of the present application. For details, refer to the detailed description in the method example, and details are not repeated here.

通信装置700还可以包括至少一个存储器730，用于存储程序指令和/或数据。存储器730和处理器720耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通 信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器720可能和存储器730协同操作。处理器720可能执行存储器730中存储的程序指令和/或数据，以使得通信装置700实现相应的方法。可选的，所述至少一个存储器中的至少一个可以包括于处理器中。The communication device 700 may also include at least onememory 730 for storing program instructions and/or data. Thememory 730 is coupled to theprocessor 720 . The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.Processor 720 may cooperate withmemory 730 . Theprocessor 720 may execute program instructions and/or data stored in thememory 730, so that the communication device 700 implements a corresponding method. Optionally, at least one of the at least one memory may be included in the processor.

通信装置700还可以包括通信接口710，用于通过传输介质和其它设备进行通信，从而用于通信装置700中的装置可以和其它设备进行通信。示例性地，当该通信装置为终端设备时，该其它设备为接入网设备；或者，当该通信装置为接入网设备时，该其它设备为终端设备。处理器720可以利用通信接口710收发数据。通信接口710具体可以是收发器。例如，上述发送单元610和接收单元620构成通信接口710。The communication device 700 may further include acommunication interface 710 for communicating with other devices through a transmission medium, so that devices used in the communication device 700 can communicate with other devices. Exemplarily, when the communication device is a terminal device, the other device is an access network device; or, when the communication device is an access network device, the other device is a terminal device. Theprocessor 720 can utilize thecommunication interface 710 to send and receive data. Thecommunication interface 710 may specifically be a transceiver. For example, the above-mentionedsending unit 610 and receivingunit 620 constitute thecommunication interface 710 .

本申请实施例中不限定上述通信接口710、处理器720以及存储器730之间的具体连接介质。示例性的，本申请实施例在图7中以存储器730、处理器720以及通信接口710之间通过总线740连接，总线在图7中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7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。In this embodiment of the present application, a specific connection medium among thecommunication interface 710, theprocessor 720, and thememory 730 is not limited. Exemplarily, in the embodiment of the present application, in FIG. 7, thememory 730, theprocessor 720, and thecommunication interface 710 are connected through thebus 740. The bus is represented by a thick line in FIG. Schematic illustrations are provided and are not intended to be limiting. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.

在本申请实施例中，处理器720可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。In this embodiment of the application, theprocessor 720 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement Or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

在本申请实施例中，存储器730可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。In the embodiment of the present application, thememory 730 may be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and may also be a volatile memory (volatile memory), For example, random access memory (random-access memory, RAM). A memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, and is used for storing program instructions and/or data.

需要说明的是，上述实施例中的通信装置可以是终端设备也可以是电路，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。当通信装置是终端设备时收发单元可以是收发器，可以包括天线和射频电路等，处理模块可以是处理器，例如：中央处理单元(central processing unit，CPU)。当通信装置是具有上述终端设备功能的部件时，收发单元可以是射频单元，处理模块可以是处理器。当通信装置是芯片系统时，收发单元可以是芯片系统的输入输出接口、处理模块可以是芯片系统的处理器。It should be noted that the communication device in the foregoing embodiments may be a terminal device or a circuit, or may be a chip applied in a terminal device or other combined devices or components having the functions of the above-mentioned terminal device. When the communication device is a terminal device, the transceiver unit may be a transceiver, and may include an antenna and a radio frequency circuit, etc., and the processing module may be a processor, such as a central processing unit (central processing unit, CPU). When the communication device is a component having the functions of the above-mentioned terminal equipment, the transceiver unit may be a radio frequency unit, and the processing module may be a processor. When the communication device is a system-on-a-chip, the transceiver unit may be an input-output interface of the system-on-a-chip, and the processing module may be a processor of the system-on-a-chip.

图8示出了一种简化的通信装置的结构示意图。便于理解和图示方便，图8中，通信装置以接入网设备作为例子。该接入网设备可应用于如图1所示的系统中，可以为图1中的网络设备，执行上述方法实施例中接入网设备的功能。接入网设备800可包括一个或多个射频单元810，如远端射频单元(remote radio unit，RRU)或主动天线单元(Active Antenna Unit，AAU)和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)820。射频单元810可以称为通信模块，可选地，该通信模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线811和射频模块812。射频单元810主要用于射频信号的收发以及射频信号与基带信号的转换。BBU 820主要用于进行基带处理，对接入网设备进行控制等。射频单元810与BBU 820可以是物理上设置在一起，也可 以物理上分离设置的，即分布式接入网设备。Fig. 8 shows a schematic structural diagram of a simplified communication device. For ease of understanding and illustration, in FIG. 8 , the communication device uses an access network device as an example. The access network device can be applied to the system shown in FIG. 1 , and can be the network device in FIG. 1 , and executes the functions of the access network device in the above method embodiments. Theaccess network device 800 may include one or moreradio frequency units 810, such as a remote radio unit (remote radio unit, RRU) or an active antenna unit (Active Antenna Unit, AAU) and one or more baseband units (baseband unit, BBU) ) (also called digital unit, digital unit, DU) 820. Theradio frequency unit 810 may be called a communication module. Optionally, the communication module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least oneantenna 811 and aradio frequency module 812 . Theradio frequency unit 810 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals. TheBBU 820 is mainly used for baseband processing and control of access network equipment. Theradio frequency unit 810 and theBBU 820 may be physically set together, or physically separated, that is, distributed access network equipment.

BBU 820为接入网设备的控制中心，也可以称为处理模块，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如BBU 820(处理模块)可以用于控制接入网设备执行上述方法实施例中关于接入网设备的操作流程。TheBBU 820 is the control center of the access network equipment, and can also be called a processing module, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum and so on. For example, the BBU 820 (processing module) may be used to control the access network device to execute the operation procedures related to the access network device in the foregoing method embodiments.

在一个示例中，BBU 820可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网络或者NR网络)，也可以分别支持不同接入制式的无线接入网(如LTE网络，NR网络或其他制式的网络)。BBU 820还包括存储器821和处理器822。存储器821用以存储必要的指令和数据。处理器822用于控制接入网设备进行必要的动作，例如用于控制接入网设备执行上述方法实施例中关于接入网设备的操作流程。存储器821和处理器822可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。In an example, theBBU 820 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network of a single access standard (such as an LTE network or an NR network), or can separately support different access standard radio access network (such as LTE network, NR network or network of other standards). TheBBU 820 also includes amemory 821 and aprocessor 822 . Thememory 821 is used to store necessary instructions and data. Theprocessor 822 is configured to control the access network device to perform necessary actions, for example, to control the access network device to execute the operation procedures related to the access network device in the foregoing method embodiments. Thememory 821 and theprocessor 822 may serve one or more single boards. That is to say, memory and processors can be set independently on each single board. It may also be that multiple single boards share the same memory and processor. In addition, necessary circuits can also be set on each single board.

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

图9示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图9中，该终端设备以手机作为例子。如图9所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对该车载单元进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的设备可以不具有输入输出装置。Fig. 9 shows a schematic structural diagram of a simplified terminal device. For ease of understanding and illustration, in FIG. 9 , the terminal device takes a mobile phone as an example. As shown in FIG. 9 , the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used for processing the communication protocol and communication data, controlling the vehicle unit, executing software programs, and processing data of the software programs. Memory is primarily used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of equipment may not have input and output devices.

当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到该设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图9中仅示出了一个存储器和处理器。在实际的设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. When data is sent to the device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 9 . In an actual device product, there may be one or more processors and one or more memories. A memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

在本申请实施例中，可以将具有收发功能的天线和射频电路视为该装置的收发单元，将具有处理功能的处理器视为该装置的处理单元。如图9所示，该装置包括收发单元910和处理单元920。收发单元910也可以称为收发器、收发机、收发装置等。处理单元920也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元910中用于实现接收功能的器件视为接收单元，将收发单元910中用于实现发送功能的器件视为发送单元，即收发单元910包括接收单元和发送单元。收发单元910有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。In the embodiment of the present application, the antenna and the radio frequency circuit having the function of transmitting and receiving can be regarded as the transmitting and receiving unit of the device, and the processor having the function of processing can be regarded as the processing unit of the device. As shown in FIG. 9 , the device includes atransceiver unit 910 and aprocessing unit 920 . Thetransceiver unit 910 may also be called a transceiver, a transceiver, a transceiver device, and the like. Theprocessing unit 920 may also be called a processor, a processing board, a processing module, a processing device, and the like. Optionally, the device in thetransceiver unit 910 for realizing the receiving function may be regarded as a receiving unit, and the device in thetransceiver unit 910 for realizing the sending function may be regarded as a sending unit, that is, thetransceiver unit 910 includes a receiving unit and a sending unit. Thetransceiver unit 910 may sometimes be called a transceiver, a transceiver, or a transceiver circuit and the like. The receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit, etc. The sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit, etc.

应理解，收发单元910用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元920用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。It should be understood that thetransceiving unit 910 is used to perform the sending and receiving operations on the terminal device side in the above method embodiments, and theprocessing unit 920 is used to perform other operations on the terminal device in the above method embodiments except the transceiving operation.

当该通信装置为芯片类的装置或者电路时，该装置可以包括收发单元和处理单元。其 中，收发单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。When the communication device is a chip-like device or circuit, the device may include a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit and/or a communication interface; the processing unit is an integrated processor or a microprocessor or an integrated circuit.

本申请实施例还提供一种通信系统，具体的，通信系统可以包括接入网设备和终端设备。示例性的，通信系统包括用于实现上述图3相关功能的接入网设备和终端设备，或者该通信系统包括用于实现上述图5的相关功能的接入网设备和终端设备，或者该通信系统包括用于实现上述图3、图4或图5中的至少两个图的实施例相关功能的接入网设备和终端设备。The embodiment of the present application also provides a communication system. Specifically, the communication system may include an access network device and a terminal device. Exemplarily, the communication system includes an access network device and a terminal device for realizing the functions related to Figure 3 above, or the communication system includes an access network device and a terminal device for realizing the functions related to Figure 5 above, or the communication The system includes an access network device and a terminal device for implementing functions related to the embodiments of at least two of the above-mentioned Fig. 3 , Fig. 4 or Fig. 5 .

本申请实施例中还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行图3至图5任何一个中的终端设备或接入网设备执行的方法。The embodiment of the present application also provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute the method performed by the terminal device or the access network device in any one of FIG. 3 to FIG. 5 .

本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行图3至图5任何一个中的终端设备或接入网设备执行的方法。An embodiment of the present application further provides a computer program product, including instructions, which, when run on a computer, cause the computer to execute the method performed by the terminal device or the access network device in any one of FIG. 3 to FIG. 5 .

本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述方法中接入网设备或终端设备的功能。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。An embodiment of the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor and may further include a memory, configured to implement functions of the access network device or the terminal device in the foregoing method. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

应理解，本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c或a-b-c，其中a，b，c可以是单个，也可以是多个。以及，除非有相反的说明，本申请的说明书和权利要求书及附图中的术语“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一消息和第二消息，只是为了区分不同的消息，而并不是表示这两种消息的优先级、发送顺序或者重要程度等的不同。在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。在本申请的说明书和权利要求书及附图中的“基于”也可以表示“至少部分基于”的含义。It should be understood that the terms "system" and "network" in the embodiments of the present application may be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (unit) in a, b or c can represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c can be single or multiple. And, unless otherwise stated, the terms "first", "second" and other ordinal numerals in the specification, claims and drawings of this application are used to distinguish multiple objects and are not used to limit multiple objects. order, timing, priority, or importance. For example, the first message and the second message are only used to distinguish different messages, and do not represent differences in priority, sending order, or importance of the two messages. In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner. "Based on" in the specification, claims and drawings of the present application may also mean "based on at least in part".

应理解，本申请实施例中提及的处理器可以是CPU，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that the processor mentioned in the embodiment of the present application may be a CPU, or other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf Programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

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

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

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

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

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

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of 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 systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请的实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半 导体介质(例如固态硬盘Solid State Disk(SSD))等。In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, a Solid State Disk (SSD)).

以上所述，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应所述以权利要求的保护范围为准。The above is only the specific implementation of the application, but the protection scope of the embodiment of the application is not limited thereto, and any skilled person familiar with the technical field can easily think of changes within the technical scope disclosed in the embodiment of the application Or replacement, should be covered within the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application should be based on the scope of protection of the claims.

Claims (24)

1. A method of communication, the method comprising:

   receiving first indication information from access network equipment, wherein the first indication information indicates that a data packet which fails to be decoded in a physical layer is submitted to a Media Access Control (MAC) layer;

   receiving a first data packet from the access network device, wherein the first data packet is transmitted on a first bearer;

   and when the first data packet fails to be decoded in the physical layer, submitting the first data packet to the MAC layer based on the first indication information.
2. The method of claim 1, wherein receiving the first indication information from the access network device comprises:

   and receiving a Radio Resource Control (RRC) message from the access network equipment, wherein the RRC message comprises the first indication information, and the first indication information specifically indicates that the data packet transmitted on the first bearing and failed to be decoded in a physical layer is submitted to a MAC layer.
3. The method of claim 1, wherein receiving the first indication information from the access network device comprises:

   and receiving first Downlink Control Information (DCI) from the access network equipment, wherein the first DCI comprises the first indication information, the first indication information specifically indicates that a data packet scheduled by the first DCI and failed to be decoded in a physical layer is submitted to a MAC layer, and the first data packet is the data packet scheduled by the first DCI.
4. A method according to any one of claims 1 to 3, wherein delivering the first data packet to the MAC layer comprises:

   and submitting the first data packet and second indicating information to an MAC layer, wherein the second indicating information indicates that the decoding of the first data packet in a physical layer fails.
5. The method according to any one of claims 1 to 4, further comprising:

   acquiring the identification information of the first bearer in a physical layer;

   delivering the first data packet to a MAC layer, comprising:

   and submitting the first data packet and the identification information to a MAC layer.
6. The method according to claims 1-4, characterized in that the method further comprises:

   acquiring the identification information of the first bearer in a physical layer;

   Delivering the first data packet to the MAC layer based on the first indication information, including:

   and submitting the first data packet to a MAC layer based on the first indication information and the identification information.
7. A method of communication, the method comprising:

   receiving second downlink control information DCI from access network equipment;

   receiving a second data packet from the access network device, wherein the second data packet is the data packet scheduled by the second DCI;

   acquiring the identification information of the load of the second data packet based on the second DCI at a physical layer;

   and submitting the second data packet and the identification information to a Media Access Control (MAC) layer.
8. The method of claim 7, wherein the step of determining the position of the probe is performed,

   the second DCI includes the identification information.
9. The method of claim 7, wherein obtaining the identification information of the bearer of the second data packet based on the second DCI comprises:

   and acquiring the identification information based on the DCI format of the second DCI, wherein the DCI format of the second DCI has a corresponding relation with the identification information.
10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

    the correspondence is configured by the access network device.
11. A method according to any one of claims 7 to 10, wherein,

    the identification information comprises a bearer identification, or a logical channel identification LCID, or an LCID index, or a bearer index.
12. The method according to any one of claims 7 to 11, wherein,

    the second data packet includes a MAC protocol data unit PDU, which does not include an LCID.
13. The method according to any one of claims 7 to 11, wherein,

    the second data packet includes a MAC protocol data unit PDU including an LCID that is ignored at the MAC layer.
14. The method according to any of claims 7-13, wherein submitting the second data packet and the identification information to a MAC layer comprises:

    and when the second data packet fails to be decoded in the physical layer, submitting the second data packet and the identification information to the MAC layer.
15. A method of communication, the method comprising:

    generating first indication information, wherein the first indication information indicates that the data packet failed to be decoded in the physical layer is submitted to the Media Access Control (MAC) layer

    And sending the first indication information to terminal equipment.
16. The method of claim 15, wherein transmitting the first indication information to the terminal device comprises:

    And sending a Radio Resource Control (RRC) message to the terminal equipment, wherein the RRC message comprises the first indication information, and the first indication information specifically indicates that the data packet transmitted on the first bearing and failed to be decoded in the physical layer is submitted to the MAC layer.
17. The method of claim 16, wherein transmitting the first indication information to the terminal device comprises:

    and sending first Downlink Control Information (DCI) to the terminal equipment, wherein the first DCI comprises the first indication information, and the first indication information specifically indicates that the data packet scheduled by the first DCI and failed to be decoded in a physical layer is submitted to a MAC layer.
18. A method of communication, the method comprising:

    generating second Downlink Control Information (DCI) comprising identification information of a bearer of a data packet scheduled by the second DCI,

    and sending the second DCI to terminal equipment.
19. The method of claim 18, wherein the step of providing the first information comprises,

    the identification information comprises a bearer identification, or a logical channel identification LCID, or an LCID index, or a bearer index.
20. A communication device for performing the method of any one of claims 1 to 6, or for performing the method of any one of claims 7 to 14, or for performing the method of any one of claims 15 to 17, or for performing the method of any one of claims 18 to 19.
21. A communication device comprising at least one processor, the at least one processor coupled to a memory;

    the memory is used for storing program codes;

    the processor for executing the program code for causing the communication device to perform the method of any one of claims 1 to 6, or to perform the method of any one of claims 7 to 14, or to perform the method of any one of claims 15 to 17, or to perform the method of any one of claims 18 to 19.
22. A communication system comprising a communication device performing the communication method according to any one of claims 1 to 6 and a communication device performing the communication method according to any one of claims 15 to 17, or comprising a communication device performing the communication method according to any one of claims 7 to 14 and a communication device performing the communication method according to any one of claims 18 to 19.
23. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program, which when executed by a computer, causes the computer to perform the method of any one of claims 1 to 6, or to perform the method of any one of claims 7 to 14, or to perform the method of any one of claims 15 to 17, or to perform the method of any one of claims 18 to 19.
24. A computer program product comprising instructions which, when executed, cause the method of any one of claims 1 to 6 to be implemented, or cause the method of any one of claims 7 to 14 to be implemented, or cause the method of any one of claims 15 to 17 to be implemented, or cause the method of any one of claims 18 to 19 to be implemented.

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