WO2021027714A1

WO2021027714A1 - Data transmission method, receiving device and sending device

Info

Publication number: WO2021027714A1
Application number: PCT/CN2020/107752
Authority: WO
Inventors: 吴昱民
Original assignee: 维沃移动通信有限公司
Priority date: 2019-08-09
Filing date: 2020-08-07
Publication date: 2021-02-18
Also published as: CN111835457B; CN111835457A

Abstract

Provided are a data transmission method, a receiving device and a sending device. The method comprises: a receiving device submitting data packets according to a target order, wherein the target order comprises at least one of a packetization order of the data packets, a numbering order of the data packets and a receiving time order of the data packets.

Description

数据传输方法、接收设备及发送设备Data transmission method, receiving equipment and sending equipment

相关申请的交叉引用Cross references to related applications

本申请主张在2019年8月9日在中国提交的中国专利申请No.201910736177.0的优先权，其全部内容通过引用包含于此。This application claims the priority of Chinese Patent Application No. 201910736177.0 filed in China on August 9, 2019, the entire content of which is incorporated herein by reference.

技术领域Technical field

本公开涉及通信技术领域，尤其涉及一种数据传输方法、接收设备及发送设备。The present disclosure relates to the field of communication technology, and in particular, to a data transmission method, receiving device, and sending device.

背景技术Background technique

多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)的数据收发涉及无线链路控制(Radio Link Control，RLC)层和媒体接入控制(Media Access Control，MAC)层。其中，发送RLC实体可以从高层(例如，分组数据汇聚协议(Packet Data Convergence Protocol，PDCP))接收RLC服务数据单元(Service Data Unit，SDU)，并可以向底层(例如，MAC实体)发送RLC协议数据单元(Protocol Data Unit，PDU)。接收RLC实体可以从底层(例如，MAC实体)接收RLC PDU，并可以向高层(例如，PDCP)发送RLC SDU。然而在相关技术中，在向高层递交数据包的过程中，在一些情况下底层(例如，非确认模式(Unacknowledged Mode，UM)下的RLC实体)将接收的数据包直接递交给高层，从而导致高层容易收到较为杂乱无序的数据，甚至会造成高层接收数据失败。The data transmission and reception of Multimedia Broadcast Multicast Service (MBMS) involves a radio link control (Radio Link Control, RLC) layer and a media access control (Media Access Control, MAC) layer. Among them, the sending RLC entity may receive the RLC service data unit (Service Data Unit, SDU) from the higher layer (for example, Packet Data Convergence Protocol (PDCP)), and may send the RLC protocol to the lower layer (for example, the MAC entity) Data unit (Protocol Data Unit, PDU). The receiving RLC entity may receive the RLC PDU from the bottom layer (for example, the MAC entity), and may send the RLC SDU to the high layer (for example, PDCP). However, in related technologies, in the process of submitting data packets to the upper layer, in some cases the lower layer (for example, the RLC entity in Unacknowledged Mode (UM)) directly submits the received data packet to the upper layer, resulting in The upper layer is prone to receive more disorderly and disorderly data, and may even cause the upper layer to fail to receive data.

发明内容Summary of the invention

本公开实施例提供一种数据传输方法、接收设备及发送设备，以提供一种按序向高层递交数据包的方式，解决相关技术中高层容易收到较为杂乱无序的数据的问题。The embodiments of the present disclosure provide a data transmission method, a receiving device, and a sending device to provide a way to deliver data packets to a higher layer in order, so as to solve the problem that the higher layer is likely to receive relatively disorderly and disorderly data in related technologies.

为了解决上述技术问题，本公开是这样实现的：In order to solve the above technical problems, the present disclosure is implemented as follows:

第一方面，本公开实施例提供了一种数据传输方法，应用于接收设备，该方法包括：In the first aspect, embodiments of the present disclosure provide a data transmission method applied to a receiving device, and the method includes:

接收设备按照目标顺序递交数据包；The receiving device delivers data packets in the order of the targets;

其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项。Wherein, the target sequence includes at least one of the grouping sequence of the data packet, the number sequence of the data packet, and the receiving time sequence of the data packet.

第二方面，本公开实施例还提供了一种数据传输方法，应用于发送设备，该方法包括：In the second aspect, the embodiments of the present disclosure also provide a data transmission method, which is applied to a sending device, and the method includes:

所述发送设备的媒体接入控制MAC实体按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。The media access control MAC entity of the sending device transmits the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.

第三方面，本公开实施例还提供了一种数据传输方法，应用于接收设备，该方法包括：In the third aspect, the embodiments of the present disclosure also provide a data transmission method, which is applied to a receiving device, and the method includes:

在确定存在数据包或数据包分段丢失的情况下，所述接收设备的RLC UM实体执行放弃操作；In the case where it is determined that there is a loss of a data packet or a data packet segment, the RLC UM entity of the receiving device performs an abort operation;

或者or

在确定存在数据包的数据内容或数据包分段的数据内容重复的情况下，所述接收设备的RLC UM实体执行丢弃操作。In the case where it is determined that the data content of the data packet or the data content of the data packet segment is duplicated, the RLC UM entity of the receiving device performs a discarding operation.

第四方面，本公开实施例还提供一种接收设备。该接收设备包括：In a fourth aspect, the embodiments of the present disclosure also provide a receiving device. The receiving device includes:

递交模块，用于接收设备按照目标顺序递交数据包；The delivery module is used for receiving devices to deliver data packets in the target order;

第五方面，本公开实施例还提供一种发送设备。该发送设备包括：In the fifth aspect, the embodiments of the present disclosure also provide a sending device. The sending equipment includes:

媒体接入控制MAC实体，用于按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。The media access control MAC entity is configured to transmit the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.

第六方面，本公开实施例还提供一种接收设备。该接收设备包括包括RLC UM实体；In the sixth aspect, the embodiments of the present disclosure also provide a receiving device. The receiving device includes RLC UM entities;

所述RLC UM实体，用于在确定存在数据包或数据包分段丢失的情况下，执行放弃操作；The RLC UM entity is used to perform an abandonment operation when it is determined that there is a data packet or data packet segment loss;

或者or

所述RLC UM实体，用于在确定存在数据包或数据包分段重复的情况下，执行丢弃操作。The RLC UM entity is used to perform a discarding operation when it is determined that there is a data packet or a data packet segment is repeated.

第七方面，本公开实施例还提供一种接收设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述第一方面提供的数据传输方法的步骤。In a seventh aspect, embodiments of the present disclosure also provide a receiving device, including a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor When realizing the steps of the data transmission method provided in the first aspect.

第八方面，本公开实施例还提供一种发送设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述第二发明提供的数据传输方法的步骤。In an eighth aspect, the embodiments of the present disclosure also provide a sending device, including a processor, a memory, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When realizing the steps of the data transmission method provided by the second invention.

第九方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述第一方面提供的数据传输方法的步骤，或者实现上述第二发明提供的数据传输方法的步骤。In a ninth aspect, embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the data transmission method provided in the first aspect is implemented Or the steps of implementing the data transmission method provided by the second invention.

本公开实施例中接收设备按照目标顺序递交数据包；其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项，提供了一种按序向高层递交数据包的方式，可以减少高层收到杂乱无序数据的情况发生。In the embodiments of the present disclosure, the receiving device delivers data packets in the order of the targets; wherein the target order includes at least one of the grouping order of the data packets, the numbering order of the data packets, and the receiving time order of the data packets, providing a The way of submitting data packets to the upper layer in order can reduce the situation that the upper layer receives the disordered data.

附图说明Description of the drawings

为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the accompanying drawings used in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

图1是本公开实施例可应用的一种网络***的结构图；FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure;

图2是本公开实施例提供的数据传输方法的流程图；Figure 2 is a flowchart of a data transmission method provided by an embodiment of the present disclosure;

图3是本公开实施例提供的MAC PDU的示意图；Figure 3 is a schematic diagram of a MAC PDU provided by an embodiment of the present disclosure;

图4是本公开又一实施例提供的数据传输方法的流程图；4 is a flowchart of a data transmission method provided by another embodiment of the present disclosure;

图5是本公开实施例提供的接收设备的结构图；Figure 5 is a structural diagram of a receiving device provided by an embodiment of the present disclosure;

图6是本公开实施例提供的发送设备的结构图；Figure 6 is a structural diagram of a sending device provided by an embodiment of the present disclosure;

图7是本公开又一实施例提供的接收设备的结构图；FIG. 7 is a structural diagram of a receiving device provided by another embodiment of the present disclosure;

图8是本公开又一实施例提供的发送设备的结构图。Fig. 8 is a structural diagram of a sending device provided by another embodiment of the present disclosure.

具体实施方式detailed description

下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例，例如除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B和/或C，表示包含单独A，单独B，单独C，以及A和B都存在，B和C都存在，A和C都存在，以及A、B和C都存在的7种情况。The terms "first" and "second" in the specification and claims of this application are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein, for example, can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the specification and claims means at least one of the connected objects, such as A and/or B and/or C, which means that it includes A alone, B alone, C alone, and both A and B Exist, B and C exist, A and C exist, and A, B, and C exist in 7 situations.

本公开实施例提供一种数据传输方法。参见图1，图1是本公开实施例可应用的一种网络***的结构图，如图1所示，包括发送设备11和接收设备12，其中，发送设备11可以是终端设备或者网络侧设备，接收设备12也可以是终端设备或者网络侧设备。终端设备可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等用户侧设备，需要说明的是，在本公开实施例中并不限定终端设备的具体类型。网络侧设备可以是基站，例如：宏站、LTE eNB、5G NR NB、gNB等；网络侧设备也可以是小站，如低功率节点(Low Power Node，LPN)pico、femto等小站，或者网络侧设备可以是接入点(Access Point，AP)；基站也可以是中央单元(Central Unit，CU)与其管理是和控制的多个TRP共同组成的网络节点。需要说明的是，在本公开实施例中并不限定网络侧设备的具体类型。The embodiment of the present disclosure provides a data transmission method. Referring to Figure 1, Figure 1 is a structural diagram of a network system to which an embodiment of the present disclosure can be applied. As shown in Figure 1, it includes a sending device 11 and a receiving device 12. The sending device 11 may be a terminal device or a network side device. The receiving device 12 may also be a terminal device or a network side device. The terminal device can be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID) or a wearable device ( Wearable Device) and other user-side devices. It should be noted that the specific types of terminal devices are not limited in the embodiments of the present disclosure. The network side equipment can be a base station, such as a macro station, LTE eNB, 5G NR NB, gNB, etc.; the network side equipment can also be a small station, such as low power node (LPN) pico, femto, etc., or The network side device may be an access point (Access Point, AP); the base station may also be a network node composed of a central unit (Central Unit, CU) and multiple TRPs managed and controlled by it. It should be noted that the specific types of network side devices are not limited in the embodiments of the present disclosure.

本公开实施例提供一种数据传输方法，应用于接收设备，该接收设备可以是终端设备或是网络侧设备。参见图2，图2是本公开实施例提供的数据传输方法的流程图，如图2所示，包括以下步骤：The embodiments of the present disclosure provide a data transmission method, which is applied to a receiving device, and the receiving device may be a terminal device or a network side device. Referring to FIG. 2, FIG. 2 is a flowchart of a data transmission method provided by an embodiment of the present disclosure. As shown in FIG. 2, it includes the following steps:

步骤201、接收设备按照目标顺序递交数据包；Step 201: The receiving device delivers data packets in the order of the targets;

本实施例中，上述数据包的组包顺序可以包括数据包的复用顺序，例如，多个MAC SDU复用在同一个MAC PDU上的顺序。上述数据包的编号顺序可以包括数据包的RLC序列号(Serial Number，SN)的顺序。需要说明的是，本公开实施例中可以仅分段传输的数据包携带编号，例如，只有RLC数据包分段携带RLC SN；也可以全部数据包均携带编号，例如，全部的RLC PDU都携带RLC SN。上述数据包可以包括但不限于RLC PDU或RLC SDU。In this embodiment, the packet sequence of the foregoing data packets may include the multiplexing sequence of the data packets, for example, the sequence in which multiple MAC SDUs are multiplexed on the same MAC PDU. The number sequence of the foregoing data packets may include the sequence of the RLC serial number (Serial Number, SN) of the data packet. It should be noted that in the embodiments of the present disclosure, only data packets transmitted in segments may carry numbers. For example, only RLC data packets may carry RLC SN in segments; all data packets may also carry numbers, for example, all RLC PDUs. RLC SN. The foregoing data packet may include but is not limited to RLC PDU or RLC SDU.

上述接收设备按照目标顺序递交数据包，例如，接收设备的MAC实体可以按照数据包的组包顺序向高层递交数据包，或者接收设备的RLC实体可以按照数据包的编号顺序向高层递交数据包，或者接收设备的RLC实体可以按照数据包的接收时间顺序向高层递交数据包，或者接收设备的MAC实体可以按照数据包的组包顺序向RLC实体传递数据包，RLC实体再按照数据包的接收时间顺序向高层递交数据包，等等。The foregoing receiving device delivers data packets in the order of the target. For example, the MAC entity of the receiving device can deliver the data packets to the higher layer in the order of the data packets, or the RLC entity of the receiving device can deliver the data packets to the higher layer in the order of the number of the data packets. Or the RLC entity of the receiving device can deliver the data packets to the higher layer in the order of the receiving time of the data packet, or the MAC entity of the receiving device can deliver the data packet to the RLC entity in the order of the packet grouping, and the RLC entity then according to the receiving time of the data packet Submit data packets to the upper layer sequentially, and so on.

可选地，所述目标顺序可以包括所述组包顺序；Optionally, the target sequence may include the package sequence;

上述步骤201，也即所述接收设备按照目标顺序递交数据包，可以包括：The foregoing step 201, that is, the receiving device submits data packets in the order of the targets, may include:

所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包。The media access control MAC entity of the receiving device delivers the at least two data packets to the higher layer according to the grouping sequence of the at least two data packets.

本实施例中，接收设备的MAC实体可以在接收到包含至少两个数据包的MAC PDU的情况下，按照至少两个数据包在该MAC PDU的复用顺序向高层递交上述至少两个数据包。需要说明的是，上述高层可以是指相对于 MAC实体的高层，例如，RLC层或PDCP层等。In this embodiment, the MAC entity of the receiving device may, in the case of receiving a MAC PDU containing at least two data packets, deliver the at least two data packets to the higher layer according to the multiplexing sequence of the at least two data packets in the MAC PDU . It should be noted that the above-mentioned higher layer may refer to the higher layer relative to the MAC entity, for example, the RLC layer or the PDCP layer.

例如，MAC实体接收到1个MAC PDU中包含了逻辑信道1对应的RLC PDU-1、PDU-2和PDU-3，则MAC实体可以将该RLC PDU-1、PDU-2和PDU-3按照该MAC PDU的数据的复用顺序依次将RLC PDU-1、PDU-2和PDU-3递交给逻辑信道1对应的RLC非确认模式(Unacknowledged Mode，UM)实体。For example, if the MAC entity receives a MAC PDU that contains RLC PDU-1, PDU-2 and PDU-3 corresponding to logical channel 1, the MAC entity can follow the RLC PDU-1, PDU-2 and PDU-3 The multiplexing sequence of the MAC PDU data sequentially delivers RLC PDU-1, PDU-2, and PDU-3 to the RLC Unacknowledged Mode (UM) entity corresponding to logical channel 1.

需要说明的是，本公开实施例的RLC UM实体可以是指非确认模式下的RLC实体。It should be noted that the RLC UM entity in the embodiments of the present disclosure may refer to an RLC entity in an unconfirmed mode.

本实施例中MAC实体按照至少两个数据包的组包顺序向高层递交所述至少两个数据包，进而可以减少高层收到杂乱无序的数据的情况发生。In this embodiment, the MAC entity delivers the at least two data packets to the higher layer according to the order of the at least two data packets, thereby reducing the occurrence of disordered data received by the higher layer.

可选地，所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向高层发送所述至少两个数据包，可以包括：Optionally, the media access control MAC entity of the receiving device sends the at least two data packets to a higher layer according to the grouping sequence of the at least two data packets, which may include:

所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包；The media access control MAC entity of the receiving device delivers the at least two data packets to the RLC UM entity of the receiving device according to a packet sequence of the at least two data packets;

所述RLC UM实体按照所述至少两个数据包的接收时间顺序或编号顺序，向高层递交所述至少两个数据包。The RLC UM entity delivers the at least two data packets to the higher layer according to the receiving time sequence or number sequence of the at least two data packets.

本实施例中，上述高层可以是相对于RLC层的高层，例如PDCP层。In this embodiment, the above-mentioned higher layer may be a higher layer relative to the RLC layer, such as the PDCP layer.

上述MAC实体按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包，也即RLC UM实体可以按照至少两个数据包的组包顺序从MAC实体接收所述至少两个数据包。The above-mentioned MAC entity delivers the at least two data packets to the RLC UM entity of the receiving device according to the grouping sequence of the at least two data packets, that is, the RLC UM entity can follow the grouping sequence of the at least two data packets from the MAC The entity receives the at least two data packets.

由于MAC实体按序向RLC UM实体传递的数据包，因此可以保证RLC UM实体接收到的至少两个数据包的顺序的准确性，进而RLC UM实体按照至少两个数据包的接收时间顺序向高层递交至少两个数据包，也可以保证高层接收到的至少两个数据包的顺序的准确性。Since the MAC entity transfers the data packets to the RLC UM entity in order, the accuracy of the sequence of at least two data packets received by the RLC UM entity can be guaranteed, and the RLC UM entity then sends the data packets to the higher layer in the order of the receiving time of the at least two data packets. Submitting at least two data packets can also ensure the accuracy of the sequence of the at least two data packets received by the higher layer.

可选地，在所有的数据包均携带有编号的情况下，RLC UM实体根据至少两个数据包的编号顺序向高层递交所述至少两个数据包，也可以保证高层接收到的至少两个数据包的顺序的准确性。Optionally, in the case that all data packets carry numbers, the RLC UM entity delivers the at least two data packets to the higher layer according to the number sequence of the at least two data packets, and it can also ensure that at least two data packets received by the higher layer The accuracy of the order of the packets.

可选地，所述目标顺序可以包括所述编号顺序；Optionally, the target sequence may include the number sequence;

所述接收设备的RLC UM实体按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包。The RLC UM entity of the receiving device delivers the at least two data packets to the higher layer according to the number sequence of the at least two data packets.

可选地，本实施例中全部的数据包均可以携带有编号，也即不管对于分段传输的数据包，还是完整传输的数据包，均可以携带编号。例如，所有RLC PDU都可以包含RLC SN，并可以在RLC PDU包头中指示该RLC PDU是完整数据包还是数据包分段。Optionally, all the data packets in this embodiment may carry a number, that is, no matter whether the data packet is transmitted in segments or the data packet is completely transmitted, the number may be carried. For example, all RLC PDUs can include RLC SN, and the RLC PDU header can indicate whether the RLC PDU is a complete data packet or a data packet segment.

对于上述步骤201，例如，RLC UM实体接收到RLC PDU-1(SN＝1)为RLC SDU-1完整数据包，接收到RLC PDU-2(SN＝2)为RLC SDU-2完整数据包，则RLC实体先将RLC SDU-1递交到高层，再将RLC SDU-2递交到高层。For the above step 201, for example, the RLC UM entity receiving RLC PDU-1 (SN=1) is a complete RLC SDU-1 data packet, and receiving RLC PDU-2 (SN=2) is a complete RLC SDU-2 data packet, Then the RLC entity first submits RLC SDU-1 to the upper layer, and then submits the RLC SDU-2 to the upper layer.

又例如，RLC UM实体接收到RLC PDU-1(SN＝1)为RLC SDU-1的数据包分段，接收到RLC PDU-2(SN＝2)为RLC SDU-2的完整数据包，则RLC实体将RLC SDU-1的数据包分段组装成完整的RLC SDU-1后，RLC UM实体先将RLC SDU-1递交到高层，再将RLC SDU-2递交到高层。For another example, if the RLC UM entity receives RLC PDU-1 (SN=1) is RLC SDU-1, and receives RLC PDU-2 (SN=2) is RLC SDU-2, then After the RLC entity assembles the RLC SDU-1 data packet into a complete RLC SDU-1, the RLC UM entity first submits the RLC SDU-1 to the upper layer, and then the RLC SDU-2 to the upper layer.

本实施例中RLC UM实体按照至少两个数据包的编号顺序向高层递交所述至少两个数据包，不仅实现较为简单，且可以保证高层接收到的至少两个数据包的顺序的准确性。In this embodiment, the RLC UM entity submits the at least two data packets to the higher layer according to the number sequence of the at least two data packets, which is not only simple to implement, but also can ensure the accuracy of the sequence of the at least two data packets received by the higher layer.

可选地，RLC UM实体按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包之前，RLC UM实体需要等待当前待递交数据包之前的没有接收到的数据包。例如，RLC UM实体接收到RLC PDU-2(SN＝2)为RLC SDU-2的完整数据包，但是还没有接收到RLC PDU-1(SN＝1)的数据包，则接收设备需要在接收到RLC PDU-1的完整数据包后，再按照编号顺序将RLC PDU-1和RLC PDU-2递交到高层。Optionally, before the RLC UM entity submits the at least two data packets to the higher layer according to the number sequence of the at least two data packets, the RLC UM entity needs to wait for the data packet that has not been received before the data packet to be delivered currently. For example, if the RLC UM entity receives a complete data packet of RLC PDU-2 (SN=2) which is RLC SDU-2, but has not received the data packet of RLC PDU-1 (SN=1), the receiving device needs to receive After the complete data packet of RLC PDU-1 is reached, RLC PDU-1 and RLC PDU-2 are delivered to the higher layer in the order of numbering.

可选地，所述目标顺序可以包括所述接收时间顺序；Optionally, the target sequence may include the receiving time sequence;

所述接收设备的RLC UM实体按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。The RLC UM entity of the receiving device delivers the at least two data packets to the higher layer in the order of receiving time of the at least two data packets.

本实施例中，RLC UM实体可以按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。需要说明的是，对于分段传输的数据包，该数据包的接收时间可以是该数据包的任意分段的接收时间，也可以是首次接收到该数据包的分段的时间，也可以是最后一次接收到该数据包的分段的时间等。In this embodiment, the RLC UM entity may deliver the at least two data packets to the higher layer in the order of receiving time of the at least two data packets. It should be noted that for a data packet transmitted in segments, the receiving time of the data packet can be the receiving time of any segment of the data packet, or the time when the segment of the data packet is first received, or it can be The time when the segment of the packet was last received, etc.

本实施例中RLC UM实体按照至少两个数据包的接收时间顺序向高层递交所述至少两个数据包，可以减少高层收到杂乱无序数据的情况发生。In this embodiment, the RLC UM entity submits the at least two data packets to the higher layer in the order of the receiving time of the at least two data packets, which can reduce the situation that the higher layer receives disordered data.

可选地，所述接收设备的RLC UM实体在确定存在数据包丢失分段的情况下，所述方法还可以包括如下一项：Optionally, when the RLC UM entity of the receiving device determines that there is a packet loss segment, the method may further include the following:

所述RLC UM实体放弃对存在分段丢失的数据包进行组包；The RLC UM entity abandons the grouping of data packets with fragmentation loss;

所述RLC UM实体放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；The RLC UM entity abandons the grouping of data packets with fragmentation loss, and abandons the grouping of data packets before the data packets with fragmentation loss;

所述RLC UM实体放弃对组包窗口内的所有数据包进行组包。The RLC UM entity abandons the grouping of all data packets in the grouping window.

在一实施方式中，RLC UM实体可以在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包。例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3。RLC UM实体若接收到RLC SDU-1分段1和RLC SDU-1分段3，则该RLC UM实体可以判定RLC SDU-1分段2没有接收到，此时RLC UM实体可以放弃对该RLC SDU-1进行组包，例如可以丢弃RLC SDU-1分段1和RLC SDU-1分段3。In an embodiment, the RLC UM entity may abandon the grouping of the data packets with the missing fragments when it is determined that there is a missing fragment. For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. If the RLC UM entity receives RLC SDU-1 segment 1 and RLC SDU-1 segment 3, the RLC UM entity can determine that RLC SDU-1 segment 2 is not received, and the RLC UM entity can abandon the RLC SDU-1 is packaged. For example, RLC SDU-1 segment 1 and RLC SDU-1 segment 3 can be discarded.

在另一实施方式中，RLC UM实体可以在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包。其中，上述在存在分段丢失的数据包之前的数据包可以包括编号位于分段丢失的数据包的编号之前的数据包。In another embodiment, the RLC UM entity may, in the case of determining that there is a packet loss segment, abandon the grouping of the data packet with the segment loss, and abandon the data before the packet loss. Package for grouping. Wherein, the above-mentioned data packet before the data packet with fragmentation loss may include the data packet whose number is before the number of the data packet with fragmentation loss.

例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC SDU-2分成了3个分段，也即RLC SDU-2分段1、RLC SDU-2分段2和RLC SDU-2分段3，该RLC SDU-2对应RLC SN＝2。RLC UM实体若接收到RLC SDU-1分段1和RLC SDU-2分段3，则该RLC UM实体可以判定RLC SDU-2分段1和RLC SDU-2分段2没有接收到，此时RLC UM实体可以放弃对该RLC SDU-1和RLC SDU-2进行组包。For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1. RLC SDU-2 is divided into three segments, namely RLC SDU-2 segment 1, RLC SDU-2 segment 2, and RLC SDU-2 segment 3. The RLC SDU-2 corresponds to RLC SN=2. If the RLC UM entity receives RLC SDU-1 segment 1 and RLC SDU-2 segment 3, the RLC UM entity can determine that RLC SDU-2 segment 1 and RLC SDU-2 segment 2 have not been received. The RLC UM entity may abandon the package of the RLC SDU-1 and RLC SDU-2.

在另一实施方式中，RLC UM实体可以在确定存在数据包丢失分段的情况下，放弃对组包窗口内的所有数据包进行组包。例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC SDU-2分成了3个分段，也即RLC SDU-2分段1、RLC SDU-2分段2和RLC SDU-2分段3，该RLC SDU-2对应RLC SN＝2。RLC UM实体若接收到RLC SDU-1分段1和RLC SDU-2分段1，则该组包窗口的长度为SN＝2，即包括了RLC SDU-1和RLC SDU-2同时进行组包。在该RLC UM实体判定RLC SDU-1分段2和RLC SDU-3没有接收到的情况下，RLC UM实体放弃对组包窗口内的全部数据包(也即RLC SDU-1和RLC SDU-2)进行组包。In another embodiment, the RLC UM entity may abandon the grouping of all data packets in the grouping window when it is determined that there is a missing segment of the data packet. For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1. RLC SDU-2 is divided into three segments, namely RLC SDU-2 segment 1, RLC SDU-2 segment 2, and RLC SDU-2 segment 3. The RLC SDU-2 corresponds to RLC SN=2. If the RLC UM entity receives RLC SDU-1 segment 1 and RLC SDU-2 segment 1, the length of the grouping window is SN=2, which includes RLC SDU-1 and RLC SDU-2 for grouping at the same time . In the case that the RLC UM entity determines that RLC SDU-1 segment 2 and RLC SDU-3 are not received, the RLC UM entity discards all data packets in the grouping window (that is, RLC SDU-1 and RLC SDU-2). ) To pack.

可选地，所述确定存在数据包丢失分段的判决条件，可以包括如下一项：Optionally, the judgment condition for determining that there is a lost packet segment may include one of the following:

接收到的数据包分段的顺序不连续；The sequence of received data packet segmentation is not continuous;

接收到的数据包的编号顺序不连续；The number sequence of the received data packets is not continuous;

在对分段传输的数据包组包的过程中接收到完整传输的数据包。A completely transmitted data packet is received in the process of grouping the segmented data packet.

在一实施方式中，在接收到的数据包分段的顺序不连续的情况下，可以确定存在数据包丢失了分段。上述接收到的数据包分段可以包括同一个数据包的分段，也可以包括多个数据包的分段。In an embodiment, in the case where the sequence of received data packet segments is not continuous, it can be determined that there are data packets with missing segments. The above-mentioned received data packet segmentation may include the same data packet segmentation, or may include multiple data packet segments.

例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC UM实体若接收到RLC SDU-1分段1和RLC SDU-1分段3，则RLC UM实体确定RLC SDU-1分段1和SDU-1分段3间的分段(也即RLC SDU-1分段2)丢失。For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1. If the RLC UM entity receives RLC SDU-1 segment 1 and RLC SDU-1 segment 3, the RLC UM entity determines the segment between RLC SDU-1 segment 1 and SDU-1 segment 3 (that is, RLC SDU-1 segment 1 and SDU-1 segment 3). -1 Segment 2) is missing.

又例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC SDU-2分成了3个分段，也即RLC SDU-2分段1、RLC SDU-2分段2和RLC SDU-2分段3，该RLC SDU-2对应RLC SN＝2。RLC UM实体若接收到RLC SDU-1分段1和RLC SDU-2分段1，则该RLC UM实体判断RLC SDU-1数据包存在分段丢失。For another example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1 . RLC SDU-2 is divided into three segments, namely RLC SDU-2 segment 1, RLC SDU-2 segment 2, and RLC SDU-2 segment 3. The RLC SDU-2 corresponds to RLC SN=2. If the RLC UM entity receives RLC SDU-1 segment 1 and RLC SDU-2 segment 1, the RLC UM entity determines that the RLC SDU-1 data packet has segment loss.

在另一实施方式中，在接收到的数据包的编号顺序不连续的情况下，可以确定存在数据包丢失了分段。例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC SDU-2分成了3个分段，也即RLC SDU-2分段1、RLC SDU-2分段2和RLC SDU-2分段3，该RLC SDU-2对应RLC SN＝2。RLC SDU-3分成了3个分段，也即RLC SDU-3分段1、RLC SDU-3分段2和RLC SDU-3分段3，该RLC SDU-3对应RLC SN＝3。RLC UM实体若接收到RLC SDU-1对应RLC SN＝1，并接收到RLC SDU-3对应RLC SN＝3，则RLC UM实体判定RLC SN＝2对应的数据包丢失，且RLC SDU-1数据包的分段丢失。In another embodiment, in the case that the number sequence of the received data packets is not continuous, it can be determined that there is a missing segment of the data packet. For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1. RLC SDU-2 is divided into three segments, namely RLC SDU-2 segment 1, RLC SDU-2 segment 2, and RLC SDU-2 segment 3. The RLC SDU-2 corresponds to RLC SN=2. RLC SDU-3 is divided into 3 segments, namely RLC SDU-3 segment 1, RLC SDU-3 segment 2, and RLC SDU-3 segment 3. The RLC SDU-3 corresponds to RLC SN=3. If the RLC UM entity receives RLC SDU-1 corresponding to RLC SN=1, and receives RLC SDU-3 corresponding to RLC SN=3, the RLC UM entity determines that the data packet corresponding to RLC SN=2 is lost, and RLC SDU-1 data The fragmentation of the packet is lost.

在另一实施方式中，在对分段传输的数据包组包的过程中接收到完整传输的数据包的情况下，可以确定存在数据包丢失了分段。可选地，上述对分段传输的数据包组包的过程也即等待已收到部分分段的数据包的剩余分段到达的过程。例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，该RLC SDU-1对应RLC SN＝1。RLC UM实体若接收到RLC SDU-1分段1，则RLC UM实体对RLC SN＝1的RLC SDU-1进行组包操作(即等待RLC SDU-1剩余的的其他分段到达)，在该过程中若RLC UM实体接收到1个包含完整RLC SDU的RLC PDU数据包(例如，RLC PDU包头没有SN编号，则指示该RLC PDU不是RLC分段数据包，而是包含完整RLC SDU的RLC PDU)，则RLC UM实体认为RLC SDU-1数据包的分段丢失。In another embodiment, in the case that a completely transmitted data packet is received in the process of grouping the data packet for segment transmission, it can be determined that there is a data packet missing a segment. Optionally, the above-mentioned process of grouping the segmented data packet is also a process of waiting for the arrival of the remaining segment of the partially segmented data packet. For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2, and RLC SDU-1 segment 3. The RLC SDU-1 corresponds to RLC SN=1. If the RLC UM entity receives RLC SDU-1 segment 1, then the RLC UM entity performs packet operation on RLC SDU-1 with RLC SN=1 (that is, waits for the arrival of the remaining segments of RLC SDU-1). In the process, if the RLC UM entity receives a RLC PDU data packet containing a complete RLC SDU (for example, the RLC PDU header does not have an SN number, it indicates that the RLC PDU is not an RLC segmented data packet, but an RLC PDU containing a complete RLC SDU ), the RLC UM entity considers that the segment of the RLC SDU-1 packet is lost.

可选地，所述接收设备的RLC UM实体在确定存在数据包丢失的情况下，所述方法还可以包括如下一项：Optionally, when the RLC UM entity of the receiving device determines that there is a data packet loss, the method may further include the following items:

所述RLC UM实体放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；The RLC UM entity abandons delivery of the lost data packet and abandons delivery of the data packet before the lost data packet;

所述RLC UM实体放弃递交丢失的数据包和放弃递交所有等待递交的数据包。The RLC UM entity abandons delivery of missing data packets and abandons delivery of all data packets waiting to be delivered.

本实施例中，上述存在数据包丢失可以包括存在完整数据包丢失，或者存在数据包分段丢失。In this embodiment, the foregoing data packet loss may include complete data packet loss or data packet segment loss.

在一实施方式中，RLC UM实体在确定存在数据包丢失的情况下，可以放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包。其中，上述在丢失的数据包之前的数据包可以包括编号在丢失的数据包的编号之前的数据。In an embodiment, the RLC UM entity may abandon the delivery of the lost data packet and the delivery of the data packet before the lost data packet when it is determined that there is a data packet loss. Wherein, the above-mentioned data packet before the lost data packet may include data whose number is before the number of the lost data packet.

例如，若RLC UM实体接收到的RLC SN＝1的数据包和RLC SN＝3的数据包，则RLC UM实体判定RLC SN＝2的数据包没有接收到，在该情况下RLC实体放弃递交RLC SN＝1的数据包和RLC SN＝2的数据包。For example, if the RLC UM entity receives a data packet with RLC SN=1 and a data packet with RLC SN=3, the RLC UM entity determines that the data packet with RLC SN=2 has not been received. In this case, the RLC entity abandons submitting RLC Data packets with SN=1 and data packets with RLC SN=2.

又例如，若RLC UM实体接收到RLC SN＝1的数据包RLC SDU-1的分段1和RLC SDU-1的分段3，则RLC UM实体判定RLC SDU-1的分段2没有接收到，在该种情况下RLC UM实体放弃递交RLC SN＝1的数据包。For another example, if the RLC UM entity receives RLC SN = 1 data packet RLC SDU-1 segment 1 and RLC SDU-1 segment 3, the RLC UM entity determines that RLC SDU-1 segment 2 has not been received In this case, the RLC UM entity gives up to submit the data packet with RLC SN=1.

在一实施方式中，RLC UM实体在确定存在数据包丢失的情况下，可以放弃递交丢失的数据包和放弃递交所有等待递交的数据包。例如，RLC UM实体若接收到RLC SN＝1的数据包和RLC SN＝3的数据包，则RLC UM实体判定RLC SN＝2的数据包没有接收到，在该种情况下RLC UM实体放弃递交RLC SN＝1的数据包、RLC SN＝2的数据包和RLC SN＝3的数据包。In an embodiment, the RLC UM entity may abandon delivery of the lost data packet and abandon the delivery of all data packets waiting to be delivered when it is determined that there is a data packet loss. For example, if the RLC UM entity receives a data packet with RLC SN=1 and a data packet with RLC SN=3, the RLC UM entity determines that the data packet with RLC SN=2 has not been received. In this case, the RLC UM entity abandons submission RLC SN=1 data packet, RLC SN=2 data packet, and RLC SN=3 data packet.

可选地，在分段传输所述数据包的情况下，所述方法还可以包括：Optionally, in the case of segmented transmission of the data packet, the method may further include:

在接收的数据包分段的数据内容为重复的数据内容的情况下，所述接收设备的RLC UM实体丢弃所述数据包分段。In a case where the data content of the received data packet segment is repeated data content, the RLC UM entity of the receiving device discards the data packet segment.

实际应用中，对于正在组包的RLC SDU，若RLC UM实体接收的该RLC SDU的分段的数据内容之前接收到过，则该RLC UM实体可以丢弃重复的RLC SDU的分段。In practical applications, for the RLC SDU that is being packaged, if the RLC UM entity receives the segmented data content of the RLC SDU before, the RLC UM entity may discard the repeated RLC SDU segment.

例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，RLC UM实体已经接收到了RLC SDU-1分段1，若RLC UM实体又再次接收到RLC SDU-1分段1，则该RLC UM实体可以丢弃掉当前接收到的RLC SDU-1分段1。For example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2 and RLC SDU-1 segment 3. The RLC UM entity has received the RLC SDU-1 segment. In segment 1, if the RLC UM entity receives RLC SDU-1 segment 1 again, the RLC UM entity can discard the currently received RLC SDU-1 segment 1.

又例如，RLC SDU-1分成了3个分段，也即RLC SDU-1分段1、RLC SDU-1分段2和RLC SDU-1分段3，其中RLC SDU-1分段2为RLC SDU-1分段1的部分数据内容，RLC UM实体已经接收到了RLC SDU-1分段1，若RLC实体又再次接收到RLC SDU-1分段2，则该RLC UM实体丢弃掉该RLC SDU-1分段2。For another example, RLC SDU-1 is divided into 3 segments, namely RLC SDU-1 segment 1, RLC SDU-1 segment 2 and RLC SDU-1 segment 3, where RLC SDU-1 segment 2 is RLC Part of the data content of SDU-1 segment 1, the RLC UM entity has received RLC SDU-1 segment 1. If the RLC entity receives RLC SDU-1 segment 2 again, the RLC UM entity discards the RLC SDU -1 Subsection 2.

可选地，所述方法还可以包括：Optionally, the method may further include:

在接收的数据包的数据内容为重复的数据内容的情况下，所述接收设备的RLC UM实体丢弃所述数据包。In a case where the data content of the received data packet is repeated data content, the RLC UM entity of the receiving device discards the data packet.

实际应用中，对于正在等待递交的完整的RLC SDU，若RLC UM实体再次收到数据内容与该完整的RLC SDU的数据内容相同的RLC SDU，则RLC UM实体丢弃该重复的RLC SDU。In practical applications, for a complete RLC SDU that is waiting to be delivered, if the RLC UM entity again receives an RLC SDU with the same data content as the complete RLC SDU, the RLC UM entity discards the duplicate RLC SDU.

例如，RLC UM实体已经接收到RLC SN＝1的完整数据包RLC SDU-1，若RLC UM实体再次接收到RLC SN＝1的完整数据包RLC SDU-1，则RLC UM实体可以丢弃重复的RLC SDU-1。For example, the RLC UM entity has received the complete data packet RLC SDU-1 with RLC SN=1. If the RLC UM entity receives the complete data packet RLC SDU-1 with RLC SN=1 again, the RLC UM entity can discard the duplicate RLC SDU-1.

又例如，RLC SN＝2的完整数据包RLC SDU-2的数据内容为RLC SN＝1的完整数据包RLC SDU-1的部分数据内容，在RLC UM实体已经接收到RLC SDU-1的情况下，若RLC UM实体接收到RLC SDU-2，则RLC UM实体可以丢弃RLC SDU-2。For another example, the data content of the complete data packet RLC SDU-2 with RLC SN=2 is part of the data content of the complete data packet RLC SDU-1 with RLC SN=1, when the RLC UM entity has received RLC SDU-1 If the RLC UM entity receives RLC SDU-2, the RLC UM entity can discard the RLC SDU-2.

可选地，网络侧可以配置用于控制接收设备按照目标顺序递交数据包的功能开关，其中，在开启该功能开关的情况下接收设备按照目标顺序递交数据包，在关闭该功能开关的情况下，接收设备可以不按照目标顺序递交数据包。Optionally, the network side can be configured with a function switch for controlling the receiving device to deliver data packets in the target order, wherein when the function switch is turned on, the receiving device delivers data packets in the target order, and when the function switch is turned off , The receiving device can deliver data packets out of target order.

实际应用中，上述RLC UM实体在存在丢失数据的情况下执行的放弃操作以及在存在重复数据的情况下执行的丢弃操作也可以与接收设备递交数据包的行为相独立。也即不管接收设备是否按照目标顺序递交数据包，上述RLC UM实体均可以在存在丢失数据的情况下执行上述放弃操作以及在存在重复数据的情况下执行上述丢弃操作。In practical applications, the abandonment operation performed by the RLC UM entity in the presence of missing data and the discard operation performed in the presence of duplicate data may also be independent of the behavior of the receiving device to deliver data packets. That is, regardless of whether the receiving device delivers the data packets in the target order, the above RLC UM entity can perform the above abandon operation in the presence of missing data and perform the above discard operation in the presence of duplicate data.

本公开实施例还提供了一种数据传输方法，应用于接收设备，可以包括：The embodiment of the present disclosure also provides a data transmission method, which is applied to a receiving device, and may include:

或者or

可选地，上述在确定存在数据包分段丢失的情况下，所述接收设备的RLC UM实体执行放弃操作，可以包括如下一项：Optionally, when it is determined that there is a loss of data packet segmentation, the RLC UM entity of the receiving device performs the abandon operation, which may include the following items:

在确定存在数据包丢失分段的情况下，所述RLC UM实体放弃对存在分段丢失的数据包进行组包；In the case where it is determined that there is a lost segment of a data packet, the RLC UM entity abandons the grouping of the lost data packet;

在确定存在数据包丢失分段的情况下，所述RLC UM实体放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；In the case where it is determined that there is a packet loss segment, the RLC UM entity abandons the grouping of the data packet with the segment loss, and the grouping of the data packet before the data packet with the segment loss;

在确定存在数据包丢失分段的情况下，所述RLC UM实体放弃对组包窗口内的所有数据包进行组包。In the case where it is determined that there is a missing segment of the data packet, the RLC UM entity abandons the grouping of all data packets in the grouping window.

可选地，上述在确定存在数据包丢失的情况下，所述接收设备的RLC UM实体执行放弃操作，可以包括如下一项：Optionally, in the foregoing case that it is determined that there is a data packet loss, the RLC UM entity of the receiving device performs the abandon operation, which may include the following items:

在确定存在数据包丢失的情况下，所述RLC UM实体放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；In the case where it is determined that there is a data packet loss, the RLC UM entity abandons the delivery of the lost data packet and abandons the delivery of the data packet before the lost data packet;

在确定存在数据包丢失的情况下，所述RLC UM实体放弃递交丢失的数据包和放弃递交所有等待递交的数据包。In the case where it is determined that there is a data packet loss, the RLC UM entity abandons delivery of the lost data packet and abandons delivery of all data packets waiting to be delivered.

可选地，上述在确定存在数据包分段重复的情况下，所述接收设备的RLC UM实体执行丢弃操作，可以包括：Optionally, in the foregoing case where it is determined that there is duplication of data packet segments, the RLC UM entity of the receiving device performs the discarding operation, which may include:

可选地，上述在确定存在数据包重复的情况下，所述接收设备的RLC UM实体执行丢弃操作，可以包括：Optionally, in the foregoing case where it is determined that there is a data packet duplication, the RLC UM entity of the receiving device performs the discarding operation, which may include:

在接收的数据包的数据内容为重复的数据内容的情况下，所述接收设备的RLC UM实体丢弃所述数据包。In the case that the data content of the received data packet is repeated data content, the RLC UM entity of the receiving device discards the data packet.

需要说明的是，本实施例中上述内容的具体解释可以参见前述实施例的相关内容，为避免重复，在此不做赘述。It should be noted that the specific explanation of the foregoing content in this embodiment can refer to the relevant content of the foregoing embodiment, and to avoid repetition, it is not repeated here.

本实施例中RLC UM实体通过丢弃重复的数据包分段或是数据包，可以减少高层收到重复数据的情况下发生。另外，在存在数据包或数据包分段丢失的情况下通过放弃对相关数据包进行组包或是放弃递交相关数据包，可以减少高层接收到不完整数据的情况下发生。In this embodiment, the RLC UM entity discards repeated data packet segments or data packets, which can reduce the occurrence of repeated data received by higher layers. In addition, in the case of data packet or data packet segment loss, by abandoning the grouping of related data packets or giving up the delivery of related data packets, the occurrence of incomplete data received by the upper layer can be reduced.

本公开实施例还提供了一种数据传输方法，应用于发送设备，该发送设备可以是终端设备，也可以是网络侧设备。参见图3，图3是本公开实施例提供的数据传输方法的流程图，如图3所示，包括以下步骤：The embodiment of the present disclosure also provides a data transmission method, which is applied to a sending device, and the sending device may be a terminal device or a network side device. Referring to FIG. 3, FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present disclosure. As shown in FIG. 3, it includes the following steps:

步骤301、发送设备的媒体接入控制MAC实体按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。Step 301: The media access control MAC entity of the sending device transmits the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.

实际应用中，发送设备的MAC实体可以在接收到RLC UM实体的多个数据包，并需将这多个数据包复用在同1个MAC PDU的情况下，可以将这多个数据包按照接收时间顺序复用在该MAC PDU中传输。In practical applications, the MAC entity of the sending device can receive multiple data packets from the RLC UM entity and need to multiplex the multiple data packets in the same MAC PDU, and the multiple data packets can be The receiving time sequence is multiplexed in the MAC PDU for transmission.

例如，参见图4，对于逻辑信道1对应的RLC UM实体，该RLC UM实体按照顺序将RLC PDU-1、RLC PDU-2和RLC PDU-3发送到MAC实体，则MAC实体将RLC PDU-1、RLC PDU-2和RLC PDU-3按照接收时间顺序组装在1个MAC PDU中传输，这样接收设备的MAC实体可以在接收到1个MAC PDU中包含了RLC UM实体的多个数据包的情况下，将这多个数据包按照在该MAC PDU中的复用顺序依次递交到RLC UM实体。For example, referring to Figure 4, for the RLC UM entity corresponding to logical channel 1, the RLC UM entity sends RLC PDU-1, RLC PDU-2, and RLC PDU-3 to the MAC entity in order, and the MAC entity sends RLC PDU-1 , RLC PDU-2 and RLC PDU-3 are assembled in 1 MAC PDU according to the order of reception time, so that the MAC entity of the receiving device can receive multiple data packets of the RLC UM entity in one MAC PDU. Next, these multiple data packets are delivered to the RLC UM entity in sequence according to the multiplexing order in the MAC PDU.

本公开实施例中，发送设备的MAC实体按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输，从而接收设备的MAC实体可以按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包，以减少高层收到杂乱无序数据的情况发生。In the embodiment of the present disclosure, the MAC entity of the transmitting device transmits the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets, so that the MAC entity of the receiving device can transmit the at least two data packets in the same MAC PDU. In order to reduce the occurrence of disordered data received by the higher layer, the at least two data packets are delivered to the upper layer in the packet sequence of each data packet.

可选地，仅分段传输的数据包携带有编号；Optionally, only data packets transmitted in segments carry numbers;

或者or

分段传输的数据包和完整传输的数据包均携带有编号。Both the segmented data packet and the completely transmitted data packet carry numbers.

在一实施方式中，发送设备的RLC UM实体可以只为分段传输的数据包携带编号，例如，在RLC PDU中包含的是完整的RLC SDU的情况下，该RLC PDU不包含RLC SN；在RLC PDU中包含的是1个RLC SDU的分段的情况下，该RLC PDU包含RLC SN。In one embodiment, the RLC UM entity of the sending device may only carry numbers for the data packets transmitted in segments. For example, in the case that the RLC PDU contains a complete RLC SDU, the RLC PDU does not include the RLC SN; In the case where the RLC PDU contains a segment of one RLC SDU, the RLC PDU contains the RLC SN.

在另一实施方式中，发送设备的RLC UM实体可以为全部的数据包携带编号，例如，所有RLC PDU都包含RLC SN，且在RLC PDU包头中指示该RLC PDU是完整数据包还是分段数据包。In another embodiment, the RLC UM entity of the sending device may carry numbers for all data packets, for example, all RLC PDUs include RLC SN, and the RLC PDU header indicates whether the RLC PDU is a complete data packet or segmented data package.

参见图5，图5是本公开实施例提供的接收设备的结构图。如图5所示，接收设备500包括：Referring to FIG. 5, FIG. 5 is a structural diagram of a receiving device provided by an embodiment of the present disclosure. As shown in FIG. 5, the receiving device 500 includes:

递交模块501，用于接收设备按照目标顺序递交数据包；The delivery module 501 is used for receiving devices to deliver data packets in the order of targets;

可选地，所述目标顺序包括所述组包顺序；Optionally, the target sequence includes the package sequence;

所述递交模块包括：The submission module includes:

媒体接入控制MAC实体，用于按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包。The media access control MAC entity is used to deliver the at least two data packets to the higher layer according to the grouping sequence of the at least two data packets.

可选地，所述递交模块包括：Optionally, the submission module includes:

媒体接入控制MAC实体，用于按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包；The media access control MAC entity is configured to deliver the at least two data packets to the RLC UM entity of the receiving device according to the grouping sequence of the at least two data packets;

所述RLC UM实体，用于按照所述至少两个数据包的接收时间顺序或编号顺序，向高层递交所述至少两个数据包。The RLC UM entity is configured to deliver the at least two data packets to a higher layer in accordance with the receiving time sequence or number sequence of the at least two data packets.

可选地，所述目标顺序包括所述编号顺序；Optionally, the target sequence includes the number sequence;

所述递交模块包括：The submission module includes:

RLC UM实体，用于按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包。The RLC UM entity is used to deliver the at least two data packets to the higher layer according to the number sequence of the at least two data packets.

可选地，所述目标顺序包括所述接收时间顺序；Optionally, the target sequence includes the receiving time sequence;

所述递交模块包括：The submission module includes:

RLC UM实体，用于按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。The RLC UM entity is used to deliver the at least two data packets to the higher layer in the order of receiving time of the at least two data packets.

可选地，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于如下一项：Optionally, the receiving device further includes an RLC UM entity, and the RLC UM entity is specifically used for the following items:

在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包；In the case where it is determined that there is a packet loss segment, abandon the grouping of the packet with the segment loss;

在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；In the case of determining that there is a packet loss segment, abandon the grouping of the data packet with the segment loss, and abandon the grouping of the data packet before the data packet with the segment loss;

在确定存在数据包丢失分段的情况下，放弃对组包窗口内的所有数据包进行组包。In the case where it is determined that there is a packet loss segment, the grouping of all data packets in the grouping window is abandoned.

可选地，所述确定存在数据包丢失分段的判决条件，包括如下一项：Optionally, the determination condition for determining that there is a lost packet segment includes one of the following:

在确定存在数据包丢失的情况下，放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；In the case of confirming that there is a data packet loss, abandon the delivery of the lost data packet and abandon the delivery of the data packet before the lost data packet;

在确定存在数据包丢失的情况下，放弃递交丢失的数据包和放弃递交所有等待递交的数据包。In the case where it is determined that there is a data packet loss, abandon delivery of the lost data packet and abandon delivery of all data packets waiting to be delivered.

可选地，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于：Optionally, the receiving device further includes an RLC UM entity, and the RLC UM entity is specifically configured to:

在分段传输所述数据包的情况下，若接收的数据包分段的数据内容为重复的数据内容，丢弃所述数据包分段。In the case of segmented transmission of the data packet, if the data content of the received data packet segment is repeated data content, the data packet segment is discarded.

在接收的数据包的数据内容为重复的数据内容的情况下，丢弃所述数据包。If the data content of the received data packet is repeated data content, the data packet is discarded.

本公开实施例提供的接收设备500能够实现上述方法实施例中接收设备实现的各个过程，为避免重复，这里不再赘述。The receiving device 500 provided in the embodiment of the present disclosure can implement the various processes implemented by the receiving device in the foregoing method embodiments, and to avoid repetition, details are not described herein again.

本公开实施例的接收设备500，递交模块501，用于接收设备按照目标顺序递交数据包；其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项，提供了一种按序向高层递交数据包的方式，可以减少高层收到杂乱无序数据的情况发生。The receiving device 500 in the embodiment of the present disclosure, the delivery module 501, is used for the receiving device to deliver data packets in a target order; wherein the target order includes the packet grouping sequence of the data packet, the number sequence of the data packet, and the receiving time sequence of the data packet At least one of them provides a way to deliver data packets to the upper layer in order, which can reduce the occurrence of disordered data received by the upper layer.

参见图6，图6是本公开实施例提供的发送设备的结构图。如图6所示，发送设备600包括：Refer to FIG. 6, which is a structural diagram of a sending device provided by an embodiment of the present disclosure. As shown in FIG. 6, the sending device 600 includes:

媒体接入控制MAC实体601，用于按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。The media access control MAC entity 601 is configured to transmit the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.

或者or

本公开实施例提供的发送设备600能够实现上述方法实施例中发送设备实现的各个过程，为避免重复，这里不再赘述。The sending device 600 provided in the embodiment of the present disclosure can implement the various processes implemented by the sending device in the foregoing method embodiments. To avoid repetition, details are not described herein again.

本公开实施例的发送设备600，媒体接入控制MAC实体601，用于按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。从而接收设备的MAC实体可以按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包，以减少高层收到杂乱无序数据的情况发生。The sending device 600 and the media access control MAC entity 601 of the embodiment of the present disclosure are configured to transmit the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets. Therefore, the MAC entity of the receiving device can deliver the at least two data packets to the higher layer according to the grouping sequence of the at least two data packets, so as to reduce the situation that the higher layer receives disordered data.

本公开实施例还提供一种接收设备，包括RLC UM实体；The embodiment of the present disclosure also provides a receiving device, including an RLC UM entity;

或者or

图7是本公开实施例提供的又一种接收设备的结构图。参见图7，该接收设备700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、处理器710、以及电源711等部件。本领域技术人员可以理解，图7中示出的接收设备结构并不构成对接收设备的限定，接收设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，接收设备包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载接收设备、可穿戴设备、以及计步器等。FIG. 7 is a structural diagram of another receiving device provided by an embodiment of the present disclosure. Referring to FIG. 7, the receiving device 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, processing 710, and power supply 711. Those skilled in the art can understand that the structure of the receiving device shown in FIG. 7 does not constitute a limitation on the receiving device. The receiving device may include more or fewer components than those shown in the figure, or a combination of certain components, or different components. Layout. In the embodiments of the present disclosure, the receiving device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted receiving device, a wearable device, and a pedometer.

其中，处理器710，用于接收设备按照目标顺序递交数据包；其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项。Wherein, the processor 710 is configured to receive the device to deliver data packets in a target order; wherein the target order includes at least one of a packet grouping sequence of the data packet, a number sequence of the data packet, and a receiving time sequence of the data packet.

本公开实施例通过接收设备按照目标顺序递交数据包；其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项，提供了一种按序向高层递交数据包的方式，可以减少高层收到杂乱无序数据的情况发生。In the embodiments of the present disclosure, the receiving device delivers data packets in a target order; wherein the target order includes at least one of the grouping order of the data packet, the numbering order of the data packet, and the receiving time order of the data packet, providing a The way of submitting data packets to the upper layer in order can reduce the situation that the upper layer receives the disordered data.

所述处理器710还用于：The processor 710 is further configured to:

通过所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包。The media access control MAC entity of the receiving device delivers the at least two data packets to the higher layer in accordance with the grouping sequence of the at least two data packets.

可选地，所述处理器710还用于：Optionally, the processor 710 is further configured to:

通过所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包；Deliver the at least two data packets to the RLC UM entity of the receiving device through the media access control MAC entity of the receiving device according to a packet sequence of the at least two data packets;

通过所述RLC UM实体按照所述至少两个数据包的接收时间顺序或编号顺序，向高层递交所述至少两个数据包。The RLC UM entity delivers the at least two data packets to a higher layer in accordance with the receiving time sequence or number sequence of the at least two data packets.

所述处理器710还用于：The processor 710 is further configured to:

通过所述接收设备的RLC UM实体按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包。The RLC UM entity of the receiving device delivers the at least two data packets to the higher layer according to the number sequence of the at least two data packets.

所述处理器710还用于：The processor 710 is further configured to:

通过所述接收设备的RLC UM实体按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。The RLC UM entity through the receiving device delivers the at least two data packets to the higher layer in the order of receiving time of the at least two data packets.

可选地，所述处理器710还用于如下一项：Optionally, the processor 710 is further configured to:

在所述接收设备的RLC UM实体在确定存在数据包丢失分段的情况下，通过所述RLC UM实体放弃对存在分段丢失的数据包进行组包；In the case where the RLC UM entity of the receiving device determines that there is a packet loss segment, the RLC UM entity abandons the grouping of the data packet with the segment loss;

在所述接收设备的RLC UM实体在确定存在数据包丢失分段的情况下，通过所述RLC UM实体放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；In the case that the RLC UM entity of the receiving device determines that there is a packet loss segment, the RLC UM entity abandons the packetization of the data packet with the segment loss, and abandons the data packet loss in the segment. The data packet before the packet is packaged;

在所述接收设备的RLC UM实体在确定存在数据包丢失分段的情况下，通过所述RLC UM实体放弃对组包窗口内的所有数据包进行组包。In the case where the RLC UM entity of the receiving device determines that there is a packet loss segment, the RLC UM entity abandons the grouping of all data packets in the grouping window.

在所述接收设备的RLC UM实体在确定存在数据包丢失的情况下，通过所述RLC UM实体放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；In the case that the RLC UM entity of the receiving device determines that there is a data packet loss, the RLC UM entity abandons the delivery of the lost data packet and the delivery of the data packet before the lost data packet;

在所述接收设备的RLC UM实体在确定存在数据包丢失的情况下，通过所述RLC UM实体放弃递交丢失的数据包和放弃递交所有等待递交的数据包。In the case that the RLC UM entity of the receiving device determines that there is a data packet loss, the RLC UM entity abandons the delivery of the lost data packet and all the data packets waiting to be delivered.

在分段传输所述数据包的情况下，若在接收的数据包分段的数据内容为重复的数据内容，所述接收设备的RLC UM实体丢弃所述数据包分段。In the case of segmented transmission of the data packet, if the data content of the received data packet segment is repeated data content, the RLC UM entity of the receiving device discards the data packet segment.

应理解的是，本公开实施例中，射频单元701可用于收发信息或通话过程中，信号的接收和发送，具体地，将来自基站的下行数据接收后，给处理器710处理；另外，将上行的数据发送给基站。通常，射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元701还可以通过无线通信***与网络和其他设备通信。It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 701 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving downlink data from the base station, it is processed by the processor 710; Uplink data is sent to the base station. Generally, the radio frequency unit 701 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 can also communicate with the network and other devices through a wireless communication system.

接收设备通过网络模块702为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。 Receiving device through the network module 702 provides users with a wireless broadband Internet access, such as to help users send and receive email, browse the web and access streaming media and so on.

音频输出单元703可以将射频单元701或网络模块702接收的或者在存储器709中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元703还可以提供与接收设备700执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元703包括扬声器、蜂鸣器以及受话器等。The audio output unit 703 may convert the audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into audio signals and output them as sounds. Moreover, the audio output unit 703 may also provide audio output related to a specific function performed by the receiving device 700 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.

输入单元704用于接收音频或视频信号。输入单元704可以包括图形处理器(Graphics Processing Unit，GPU)7041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元706上。经图形处理器7041处理后的图像帧可以存储在存储器709(或其它存储介质)中或者经由射频单元701或网络模块702进行发送。麦克风7042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元701发送到移动通信基站的格式输出。The input unit 704 is used to receive audio or video signals. The input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 is used for the image of a still picture or video obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed. The processed image frame may be displayed on the display unit 706. The image frame processed by the graphics processor 7041 may be stored in the memory 709 (or other storage medium) or sent via the radio frequency unit 701 or the network module 702. The microphone 7042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 701 for output in the case of a telephone call mode.

接收设备700还包括至少一种传感器705，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板7061的亮度，接近传感器可在接收设备700移动到耳边时，关闭显示面板7061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别接收设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器705还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。The receiving device 700 further includes at least one sensor 705, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 7061 according to the brightness of the ambient light. The proximity sensor can close the display panel 7061 and the display panel 7061 when the receiving device 700 is moved to the ear. / Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the receiving device's posture (such as horizontal and vertical screen switching, related games , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 705 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.

显示单元706用于显示由用户输入的信息或提供给用户的信息。显示单元706可包括显示面板7061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板7061。The display unit 706 is used to display information input by the user or information provided to the user. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

用户输入单元707可用于接收输入的数字或字符信息，以及产生与接收设备的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板7071上或在触控面板7071附近的操作)。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器710，接收处理器710发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板7071。除了触控面板7071，用户输入单元707还可以包括其他输入设备7072。具体地，其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。The user input unit 707 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the receiving device. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 7071 or near the touch panel 7071. operating). The touch panel 7071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 710, the command sent by the processor 710 is received and executed. In addition, the touch panel 7071 can be realized by various types such as resistive, capacitive, infrared and surface acoustic wave. In addition to the touch panel 7071, the user input unit 707 may also include other input devices 7072. Specifically, other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

进一步地，触控面板7071可覆盖在显示面板7061上，当触控面板7071检测到在其上或附近的触摸操作后，传送给处理器710以确定触摸事件的类型，随后处理器710根据触摸事件的类型在显示面板7061上提供相应的视觉输出。虽然在图7中，触控面板7071与显示面板7061是作为两个独立的部件来实现接收设备的输入和输出功能，但是在某些实施例中，可以将触控面板7071与显示面板7061集成而实现接收设备的输入和输出功能，具体此处不做限定。Further, the touch panel 7071 can be overlaid on the display panel 7061. When the touch panel 7071 detects a touch operation on or near it, it transmits it to the processor 710 to determine the type of the touch event. The type of event provides corresponding visual output on the display panel 7061. Although in FIG. 7, the touch panel 7071 and the display panel 7061 are used as two independent components to implement the input and output functions of the receiving device, in some embodiments, the touch panel 7071 and the display panel 7061 can be integrated The realization of the input and output functions of the receiving device is not specifically limited here.

接口单元708为外部装置与接收设备700连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元708可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到接收设备700内的一个或多个元件或者可以用于在接收设备700和外部装置之间传输数据。The interface unit 708 is an interface for connecting an external device and the receiving device 700. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 708 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the receiving device 700 or can be used to connect the receiving device 700 to an external device. Transfer data between devices.

存储器709可用于存储软件程序以及各种数据。存储器709可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器709可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The memory 709 can be used to store software programs and various data. The memory 709 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

处理器710是接收设备的控制中心，利用各种接口和线路连接整个接收设备的各个部分，通过运行或执行存储在存储器709内的软件程序和/或模块，以及调用存储在存储器709内的数据，执行接收设备的各种功能和处理数据，从而对接收设备进行整体监控。处理器710可包括一个或多个处理单元；可选地，处理器710可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作***、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。The processor 710 is the control center of the receiving device. It uses various interfaces and lines to connect the various parts of the entire receiving device, by running or executing software programs and/or modules stored in the memory 709, and calling data stored in the memory 709 , Perform various functions of the receiving device and process data, so as to monitor the receiving device as a whole. The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc. The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 710.

接收设备700还可以包括给各个部件供电的电源711(比如电池)，可选地，电源711可以通过电源管理***与处理器710逻辑相连，从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。The receiving device 700 may also include a power source 711 (such as a battery) for supplying power to various components. Optionally, the power source 711 may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.

另外，接收设备700包括一些未示出的功能模块，在此不再赘述。In addition, the receiving device 700 includes some functional modules not shown, which will not be repeated here.

可选地，本公开实施例还提供一种接收设备，包括处理器710，存储器709，存储在存储器709上并可在所述处理器710上运行的计算机程序，该计算机程序被处理器710执行时实现上述数据传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。Optionally, an embodiment of the present disclosure further provides a receiving device, including a processor 710, a memory 709, a computer program stored on the memory 709 and running on the processor 710, and the computer program is executed by the processor 710 Each process of the above-mentioned data transmission method embodiment can be realized at a time, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

参见图8，图8是本公开又一实施例提供的接收设备的结构图。如图8所示，接收设备800包括：处理器801、存储器802、总线接口803和收发机804，其中，处理器801、存储器802和收发机804均连接至总线接口803。Refer to FIG. 8, which is a structural diagram of a receiving device provided by another embodiment of the present disclosure. As shown in FIG. 8, the receiving device 800 includes: a processor 801, a memory 802, a bus interface 803, and a transceiver 804, where the processor 801, the memory 802, and the transceiver 804 are all connected to the bus interface 803.

其中，在本公开实施例中，接收设备800还包括：存储在存储器802上并可在处理器801上运行的计算机程序，计算机程序被处理器801执行时实现如下步骤：Wherein, in the embodiment of the present disclosure, the receiving device 800 further includes: a computer program stored in the memory 802 and capable of running on the processor 801. When the computer program is executed by the processor 801, the following steps are implemented:

通过媒体接入控制MAC实体按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。According to the receiving time sequence of the at least two data packets, the media access control MAC entity transmits the at least two data packets in the same MAC PDU.

或者or

本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述数据传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。The embodiments of the present disclosure also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the foregoing data transmission method embodiment is realized, and the same technology can be achieved. The effect, in order to avoid repetition, will not be repeated here. Wherein, the computer readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element.

通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) ) Includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.

上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims

一种数据传输方法，应用于接收设备，包括：A data transmission method applied to a receiving device, including:

接收设备按照目标顺序递交数据包；The receiving device delivers data packets in the order of the targets;

其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项。Wherein, the target sequence includes at least one of the grouping sequence of the data packet, the number sequence of the data packet, and the receiving time sequence of the data packet.
根据权利要求1所述的方法，其中，所述目标顺序包括所述组包顺序；The method according to claim 1, wherein the target sequence includes the grouping sequence;

所述接收设备按照目标顺序递交数据包，包括：The receiving device submits data packets in the order of targets, including:

所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包。The media access control MAC entity of the receiving device delivers the at least two data packets to the higher layer according to the grouping sequence of the at least two data packets.
根据权利要求2所述的方法，其中，所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向高层发送所述至少两个数据包，包括：The method according to claim 2, wherein the media access control MAC entity of the receiving device sends the at least two data packets to a higher layer according to the grouping sequence of the at least two data packets, comprising:

所述接收设备的媒体接入控制MAC实体按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包；The media access control MAC entity of the receiving device delivers the at least two data packets to the RLC UM entity of the receiving device according to a packet sequence of the at least two data packets;

所述RLC UM实体按照所述至少两个数据包的接收时间顺序或编号顺序，向高层递交所述至少两个数据包。The RLC UM entity delivers the at least two data packets to the higher layer according to the receiving time sequence or number sequence of the at least two data packets.
根据权利要求1所述的方法，其中，所述目标顺序包括所述编号顺序；The method according to claim 1, wherein the target sequence includes the number sequence;

所述接收设备按照目标顺序递交数据包，包括：The receiving device submits data packets in the order of targets, including:

所述接收设备的RLC UM实体按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包。The RLC UM entity of the receiving device delivers the at least two data packets to the higher layer according to the number sequence of the at least two data packets.
根据权利要求1所述的方法，其中，所述目标顺序包括所述接收时间顺序；The method of claim 1, wherein the target sequence includes the reception time sequence;

所述接收设备按照目标顺序递交数据包，包括：The receiving device submits data packets in the order of targets, including:

所述接收设备的RLC UM实体按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。The RLC UM entity of the receiving device delivers the at least two data packets to the higher layer in the order of receiving time of the at least two data packets.
根据权利要求1所述的方法，其中，所述接收设备的RLC UM实体在确定存在数据包丢失分段的情况下，所述方法还包括如下一项：The method according to claim 1, wherein when the RLC UM entity of the receiving device determines that there is a packet loss segment, the method further includes the following:

所述RLC UM实体放弃对存在分段丢失的数据包进行组包；The RLC UM entity abandons the grouping of data packets with fragmentation loss;

所述RLC UM实体放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；The RLC UM entity abandons the grouping of data packets with fragmentation loss, and abandons the grouping of data packets before the data packets with fragmentation loss;

所述RLC UM实体放弃对组包窗口内的所有数据包进行组包。The RLC UM entity abandons the grouping of all data packets in the grouping window.
根据权利要求6所述的方法，其中，所述确定存在数据包丢失分段的判决条件，包括如下一项：The method according to claim 6, wherein the determination condition for determining that there is a packet loss segment includes one of the following:

接收到的数据包分段的顺序不连续；The sequence of received data packet segmentation is not continuous;

接收到的数据包的编号顺序不连续；The number sequence of the received data packets is not continuous;

在对分段传输的数据包组包的过程中接收到完整传输的数据包。A completely transmitted data packet is received in the process of grouping the segmented data packet.
根据权利要求1所述的方法，其中，所述接收设备的RLC UM实体在确定存在数据包丢失的情况下，所述方法还包括如下一项：The method according to claim 1, wherein when the RLC UM entity of the receiving device determines that there is a data packet loss, the method further includes the following:

所述RLC UM实体放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；The RLC UM entity abandons delivery of the lost data packet and abandons delivery of the data packet before the lost data packet;

所述RLC UM实体放弃递交丢失的数据包和放弃递交所有等待递交的数据包。The RLC UM entity abandons delivery of missing data packets and abandons delivery of all data packets waiting to be delivered.
根据权利要求1所述的方法，其中，在分段传输所述数据包的情况下，所述方法还包括：The method according to claim 1, wherein, in the case of transmitting the data packet in segments, the method further comprises:

在接收的数据包分段的数据内容为重复的数据内容的情况下，所述接收设备的RLC UM实体丢弃所述数据包分段。In a case where the data content of the received data packet segment is repeated data content, the RLC UM entity of the receiving device discards the data packet segment.
根据权利要求1所述的方法，还包括：The method according to claim 1, further comprising:

在接收的数据包的数据内容为重复的数据内容的情况下，所述接收设备的RLC UM实体丢弃所述数据包。In the case that the data content of the received data packet is repeated data content, the RLC UM entity of the receiving device discards the data packet.
一种数据传输方法，应用于发送设备，包括：A data transmission method applied to a sending device, including:

所述发送设备的媒体接入控制MAC实体按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。The media access control MAC entity of the sending device transmits the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.
根据权利要求11所述的方法，其中：The method of claim 11, wherein:

仅分段传输的数据包携带有编号；Only data packets transmitted in segments carry numbers;

或者or

分段传输的数据包和完整传输的数据包均携带有编号。Both the segmented data packet and the completely transmitted data packet carry numbers.
一种数据传输方法，应用于接收设备，包括：A data transmission method applied to a receiving device, including:

在确定存在数据包或数据包分段丢失的情况下，所述接收设备的RLC UM实体执行放弃操作；In the case where it is determined that there is a loss of a data packet or a data packet segment, the RLC UM entity of the receiving device performs an abort operation;

或者or

在确定存在数据包的数据内容或数据包分段的数据内容重复的情况下，所述接收设备的RLC UM实体执行丢弃操作。In the case where it is determined that the data content of the data packet or the data content of the data packet segment is duplicated, the RLC UM entity of the receiving device performs a discarding operation.
一种接收设备，包括：A receiving device, including:

递交模块，用于按照目标顺序递交数据包；The delivery module is used to deliver data packets in the order of targets;

其中，所述目标顺序包括数据包的组包顺序、数据包的编号顺序和数据包的接收时间顺序中的至少一项。Wherein, the target sequence includes at least one of the grouping sequence of the data packet, the number sequence of the data packet, and the receiving time sequence of the data packet.
根据权利要求14所述的接收设备，其中，所述目标顺序包括所述组包顺序；The receiving device according to claim 14, wherein the target order includes the grouping order;

所述递交模块包括：The submission module includes:

媒体接入控制MAC实体，用于按照至少两个数据包的组包顺序，向高层递交所述至少两个数据包。The media access control MAC entity is used to deliver the at least two data packets to the higher layer according to the grouping sequence of the at least two data packets.
根据权利要求15所述的接收设备，其中，所述递交模块包括：The receiving device according to claim 15, wherein the delivery module comprises:

媒体接入控制MAC实体，用于按照至少两个数据包的组包顺序，向所述接收设备的RLC UM实体递交所述至少两个数据包；The media access control MAC entity is configured to deliver the at least two data packets to the RLC UM entity of the receiving device according to the grouping sequence of the at least two data packets;

所述RLC UM实体，用于按照所述至少两个数据包的接收时间顺序或编号顺序，向高层递交所述至少两个数据包。The RLC UM entity is configured to deliver the at least two data packets to a higher layer in accordance with the receiving time sequence or number sequence of the at least two data packets.
根据权利要求14所述的接收设备，其中，所述目标顺序包括所述编号顺序；The receiving device according to claim 14, wherein the target sequence includes the number sequence;

所述递交模块包括：The submission module includes:

RLC UM实体，用于按照至少两个数据包的编号顺序，向高层递交所述至少两个数据包。The RLC UM entity is used to deliver the at least two data packets to the higher layer according to the number sequence of the at least two data packets.
根据权利要求14所述的接收设备，其中，所述目标顺序包括所述接收时间顺序；The receiving device according to claim 14, wherein the target sequence includes the receiving time sequence;

所述递交模块包括：The submission module includes:

RLC UM实体，用于按照至少两个数据包的接收时间顺序，向高层递交所述至少两个数据包。The RLC UM entity is used to deliver the at least two data packets to the higher layer in the order of receiving time of the at least two data packets.
根据权利要求14所述的接收设备，其中，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于如下一项：The receiving device according to claim 14, wherein the receiving device further comprises an RLC UM entity, and the RLC UM entity is specifically used for the following items:

在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包；In the case where it is determined that there is a packet loss segment, abandon the grouping of the packet with the segment loss;

在确定存在数据包丢失分段的情况下，放弃对存在分段丢失的数据包进行组包，以及放弃对在存在分段丢失的数据包之前的数据包进行组包；In the case of determining that there is a packet loss segment, abandon the grouping of the data packet with the segment loss, and abandon the grouping of the data packet before the data packet with the segment loss;

在确定存在数据包丢失分段的情况下，放弃对组包窗口内的所有数据包进行组包。In the case where it is determined that there is a missing segment of the data packet, the grouping of all data packets in the grouping window is abandoned.
根据权利要求19所述的接收设备，其中，所述确定存在数据包丢失分段的判决条件，包括如下一项：The receiving device according to claim 19, wherein the judgment condition for determining that there is a lost packet segment includes one of the following:

接收到的数据包分段的顺序不连续；The sequence of received data packet segmentation is not continuous;

接收到的数据包的编号顺序不连续；The number sequence of the received data packets is not continuous;

在对分段传输的数据包组包的过程中接收到完整传输的数据包。A completely transmitted data packet is received in the process of grouping the segmented data packet.
根据权利要求14所述的接收设备，其中，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于如下一项：The receiving device according to claim 14, wherein the receiving device further comprises an RLC UM entity, and the RLC UM entity is specifically used for the following items:

在确定存在数据包丢失的情况下，放弃递交丢失的数据包和放弃递交在丢失的数据包之前的数据包；In the case of confirming that there is a data packet loss, abandon the delivery of the lost data packet and abandon the delivery of the data packet before the lost data packet;

在确定存在数据包丢失的情况下，放弃递交丢失的数据包和放弃递交所有等待递交的数据包。In the case where it is determined that there is a data packet loss, abandon delivery of the lost data packet and abandon delivery of all data packets waiting to be delivered.
根据权利要求14所述的接收设备，其中，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于：The receiving device according to claim 14, wherein the receiving device further comprises an RLC UM entity, and the RLC UM entity is specifically used for:

在分段传输所述数据包的情况下，若接收的数据包分段的数据内容为重复的数据内容，丢弃所述数据包分段。In the case of segmented transmission of the data packet, if the data content of the received data packet segment is repeated data content, the data packet segment is discarded.
根据权利要求14所述的接收设备，其中，所述接收设备还包括RLC UM实体，所述RLC UM实体具体用于：The receiving device according to claim 14, wherein the receiving device further comprises an RLC UM entity, and the RLC UM entity is specifically used for:

在接收的数据包的数据内容为重复的数据内容的情况下，丢弃所述数据包。If the data content of the received data packet is repeated data content, the data packet is discarded.
一种发送设备，包括：A sending device, including:

媒体接入控制MAC实体，用于按照至少两个数据包的接收时间顺序，将所述至少两个数据包组包在同一个MAC PDU中传输。The media access control MAC entity is configured to group and transmit the at least two data packets in the same MAC PDU according to the receiving time sequence of the at least two data packets.
根据权利要求24所述的发送设备，其中：The sending device according to claim 24, wherein:

仅分段传输的数据包携带有编号；Only data packets transmitted in segments carry numbers;

或者or

分段传输的数据包和完整传输的数据包均携带有编号。Both the segmented data packet and the completely transmitted data packet carry numbers.
一种接收设备，包括RLC UM实体；A receiving device, including RLC UM entity;

所述RLC UM实体，用于在确定存在数据包或数据包分段丢失的情况下，执行放弃操作；The RLC UM entity is used to perform an abandonment operation when it is determined that there is a data packet or data packet segment loss;

或者or

所述RLC UM实体，用于在确定存在数据包或数据包分段重复的情况下，执行丢弃操作。The RLC UM entity is used to perform a discarding operation when it is determined that there is a data packet or a data packet segment is repeated.
一种接收设备，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至10中任一项所述的数据传输方法的步骤。A receiving device, comprising: a processor, a memory, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor is implemented as in claims 1 to 10 Any of the steps of the data transmission method.
一种发送设备，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求11至12中任一项所述的数据传输方法的步骤。A sending device, comprising: a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor is implemented as in claims 11 to 12 Any of the steps of the data transmission method.
一种接收设备，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求13所述的数据传输方法的步骤。A receiving device, comprising: a processor, a memory, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor to realize the The steps of the data transfer method.
一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至10中任一项所述的数据传输方法的步骤，或者实现如权利要求11至12中任一项所述的数据传输方法的步骤，或者实现如权利要求13所述的数据传输方法的步骤。A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the data transmission method according to any one of claims 1 to 10 is implemented Steps, or implement the steps of the data transmission method according to any one of claims 11 to 12, or implement the steps of the data transmission method according to claim 13.