WO2022206544A1

Movatterモバイル変換

Info

Publication number: WO2022206544A1
Application number: PCT/CN2022/082731
Authority: WO
Inventors: 文鸣; 刘进华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-31
Filing date: 2022-03-24
Publication date: 2022-10-06
Anticipated expiration: 2023-09-30
Also published as: CN115150965B; CN115150965A

Abstract

The present application relates to the technical field of communications, and discloses a data scheduling method and apparatus, and a device. The method comprises: a first IAB node receives a BAP control PDU, wherein the first IAB node is a downstream node of a second IAB node, the BAP control PDU is configured to indicate whether a topology network accessed by a third IAB node and a fourth IAB node changes, the third IAB node is an upstream IAB node after the second IAB node performs radio link recovery, and the fourth IAB node is an upstream IAB node before the second IAB node performs radio link recovery; and the first IAB node performs a corresponding data scheduling operation on a downstream node of the first IAB node according to the BAP control PDU, wherein the downstream node of the first IAB node is an IAB node or a terminal.

Description

Translated fromChinese

数据调度方法、装置及设备Data scheduling method, device and device

相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS

本申请主张在2021年3月31日在中国提交的中国专利申请No.202110351906.8的优先权，其全部内容通过引用包含于此。This application claims priority to Chinese Patent Application No. 202110351906.8 filed in China on March 31, 2021, the entire contents of which are incorporated herein by reference.

技术领域technical field

本申请属于通信技术领域，具体涉及一种数据调度方法、装置及设备。The present application belongs to the field of communication technologies, and in particular relates to a data scheduling method, apparatus and device.

背景技术Background technique

目前无线接入与回传一体化(integrated access and backhaul，IAB)节点支持类型2/3无线链路失败指示(type-2/3 Radio Link Failure indication，type-2/3 RLF indication)，其中类型2回传无线链路失败指示(type-2 backhaul Radio Link Failure indication，type-2 BH RLF indication)表示一个IAB节点与其父IAB节点之间发生无线链路失败，向子IAB节点通知“检测到无线链路失败RLF”；type-3 BH RLF indication表示一个IAB节点与其父IAB节点的无线链路失败后无线链路恢复成功，向子IAB节点通知RLF恢复成功。Currently, integrated access and backhaul (IAB) nodes support type-2/3 Radio Link Failure indication (type-2/3 RLF indication), where thetype 2 backhaul radio link failure indication (type-2 backhaul Radio Link Failure indication, type-2 BH RLF indication) indicates that a radio link failure occurs between an IAB node and its parent IAB node, and the child IAB node is notified that "the wireless link is detected. "Link failure RLF"; type-3 BH RLF indication indicates that the radio link between an IAB node and its parent IAB node fails and the radio link recovers successfully, and the child IAB node is notified of the successful RLF recovery.

对于IAB节点与进行无线链路恢复的节点属于不同IAB宿主集中处理单元(IAB-donor-Centralized Unit，IAB-donor-CU)的场景，如果该IAB节点的下游IAB节点接收到type-3 RLF indication就开始恢复对UE数据的上行调度，由于分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)的锚点(anchor点)从源CU转为目标CU(用于加密数据的秘钥等发生了改变)，则会导致最终到达目标CU的数据无法被目标CU成功解码，UE发送的数据最终将会被丢失。For the scenario where the IAB node and the node performing radio link recovery belong to different IAB host centralized processing units (IAB-donor-Centralized Unit, IAB-donor-CU), if the downstream IAB node of the IAB node receives the type-3 RLF indication It starts to restore the uplink scheduling of UE data, because the anchor point (anchor point) of the Packet Data Convergence Protocol (PDCP) is transferred from the source CU to the target CU (the key used to encrypt the data, etc. has changed) , the data that finally reaches the target CU cannot be successfully decoded by the target CU, and the data sent by the UE will eventually be lost.

发明内容SUMMARY OF THE INVENTION

本申请实施例提供一种数据调度方法、装置及设备，能够解决IAB节点与进行无线链路恢复后上行传输数据不必要的丢失问题。The embodiments of the present application provide a data scheduling method, apparatus and device, which can solve the problem of unnecessary loss of uplink transmission data after the IAB node and the wireless link are restored.

第一方面，提供了一种数据调度方法，该方法包括：In a first aspect, a data scheduling method is provided, the method comprising:

第一IAB节点接收BAP control PDU，所述第一IAB节点为第二IAB节点的下游节点，所述BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，所述第三IAB节点为所述第二IAB节点进行无线链路恢复之后的上游IAB节点，所述第四IAB节点为所述第二IAB节点进行无线链路恢复之前的上游IAB节点；The first IAB node receives the BAP control PDU, the first IAB node is the downstream node of the second IAB node, and the BAP control PDU is used to indicate whether the topology network accessed by the third IAB node and the fourth IAB node has changed, The third IAB node is the upstream IAB node after the second IAB node performs radio link recovery, and the fourth IAB node is the upstream IAB node before the second IAB node performs radio link recovery;

所述第一IAB节点根据所述BAP control PDU，对所述第一IAB节点的下游节点执行对应的数据调度操作，所述第一IAB节点的下游节点为IAB节点或者终端。The first IAB node performs a corresponding data scheduling operation on the downstream node of the first IAB node according to the BAP control PDU, and the downstream node of the first IAB node is an IAB node or a terminal.

第二方面，提供了一种数据调度装置，包括：In a second aspect, a data scheduling apparatus is provided, including:

接收模块，用于第一IAB节点接收BAP control PDU，所述第一IAB节点为第二IAB节点的下游节点，所述BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，所述第三IAB节点为所述第二IAB节点进行无线链路恢复之后的上游IAB节点，所述第四IAB节点为所述第二IAB节点进行无线链路恢复之前的上游IAB节点；The receiving module is used for the first IAB node to receive the BAP control PDU, the first IAB node is the downstream node of the second IAB node, and the BAP control PDU is used to indicate the topology of the third IAB node and the fourth IAB node access Whether the network has changed, the third IAB node is the upstream IAB node after the second IAB node performs radio link recovery, and the fourth IAB node is the upstream IAB node before the second IAB node performs radio link recovery IAB node;

第一调度模块，用于所述第一IAB节点根据所述BAP control PDU，对所述第一IAB节点的下游节点执行对应的数据调度操作，所述第一IAB节点的下游节点为IAB节点或者终端。A first scheduling module, used for the first IAB node to perform a corresponding data scheduling operation on the downstream node of the first IAB node according to the BAP control PDU, where the downstream node of the first IAB node is an IAB node or terminal.

第三方面，提供了一种终端，该终端包括处理器、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程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。In a third aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

第四方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于第一IAB节点接收BAP control PDU，所述第一IAB节点为第二IAB节点的下游节点，所述BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，所述第三IAB节点为所述第二IAB节点进行无线链路恢复之后的上游IAB节点，所述第四IAB节点为所述第二IAB节点进行无线链路恢复之前的上游IAB节点；所述处理器用于所述第一IAB节点根据所述BAP control PDU，对所述第一IAB节点的下游节点执行对应的数据调度操作，所述第一IAB节点的下游节点为IAB节点或者终端。In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used for a first IAB node to receive a BAP control PDU, and the first IAB node is a downstream node of the second IAB node, so The BAP control PDU is used to indicate whether the topology network accessed by the third IAB node and the fourth IAB node has changed, and the third IAB node is the upstream IAB node after the second IAB node performs wireless link recovery, so The fourth IAB node is the upstream IAB node before the second IAB node performs radio link recovery; the processor is used by the first IAB node to perform the operation of the first IAB node on the downstream of the first IAB node according to the BAP control PDU. The node performs a corresponding data scheduling operation, and the downstream node of the first IAB node is an IAB node or a terminal.

第五方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。In a fifth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

第六方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法的步骤。In a sixth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect A step of.

第七方面，提供了一种计算机程序产品，所述计算机程序产品被存储在非易失的存储介质中，所述程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。A seventh aspect provides a computer program product, the computer program product being stored in a non-volatile storage medium, the program/program product being executed by at least one processor to implement the method according to the first aspect A step of.

在本申请实施例中，第一IAB节点根据进行无线链路恢复的节点接入的拓扑网络是否发生变化，对下游节点进行的相应数据调度操作，从而避免丢失上行传输数据，提高上行数据的传输可靠性。In the embodiment of the present application, the first IAB node performs a corresponding data scheduling operation on the downstream node according to whether the topology network accessed by the node performing wireless link recovery changes, thereby avoiding loss of uplink transmission data and improving the transmission of uplink data. reliability.

附图说明Description of drawings

图1a为现有IAB系统结构示意图之一；Fig. 1a is one of the structural schematic diagrams of the existing IAB system;

图1b为现有IAB系统结构示意图之二；Figure 1b is the second schematic diagram of the existing IAB system structure;

图1c为现有IAB系统结构示意图之三；Fig. 1c is the third schematic diagram of the existing IAB system structure;

图1d为现有IAB系统结构示意图之四；Fig. 1d is the fourth schematic diagram of the existing IAB system structure;

图1e为现有BAP control PDU的结构示意；Figure 1e is a schematic diagram of the structure of the existing BAP control PDU;

图2为本申请实施例提供的数据调度方法的流程示意图；FIG. 2 is a schematic flowchart of a data scheduling method provided by an embodiment of the present application;

图3a为本申请实施例提供的BAP control PDU的结构示意图之一；FIG. 3 a is one of the schematic structural diagrams of the BAP control PDU provided by the embodiment of the application;

图3b为本申请实施例提供的BAP control PDU的结构示意图之二；FIG. 3b is the second schematic structural diagram of the BAP control PDU provided by the embodiment of the application;

图3c为本申请实施例提供的BAP control PDU的结构示意图之三；Fig. 3c is the third schematic structural diagram of the BAP control PDU provided by the embodiment of the present application;

图3d为本申请实施例提供的BAP control PDU的结构示意图之四；FIG. 3d is the fourth schematic structural diagram of the BAP control PDU provided by the embodiment of the application;

图4为本申请实施例提供的数据调度装置的结构示意图；FIG. 4 is a schematic structural diagram of a data scheduling apparatus provided by an embodiment of the present application;

图5为本申请实施例提供的通信设备的结构示意图；FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

图6为本申请实施例提供的第一IAB节点的结构示意图。FIG. 6 is a schematic structural diagram of a first IAB node according to 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清楚描述，显然，所描述的实施例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 clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

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，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6^th Generation，6G)通信系统。It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques can also be applied to applications other than NR system applications, such as 6th generation (6th^generation ) Generation, 6G) communication system.

为更好理解本申请实施例的方案，首先对以下内容进行介绍：In order to better understand the solutions of the embodiments of the present application, the following contents are first introduced:

IAB网络IAB Network

参见图1a，图中显示了一个IAB系统示意图。一个IAB节点包括分布式处理单元(Distributed Unit，DU)功能部分和移动终端(Mobile Termination，MT)功能部分。依靠MT，一个接入点(即IAB node)可以找到一个上游接入点(parent IAB node)，并跟上游接入点的DU建立无线连接，该无线连接被称为回程链路(backhaul link)。在一个IAB节点建立完整的回传链路后，该IAB节点打开其DU功能，DU会提供小区服务，即DU可以为UE提供接入服务。一个自回传回路包含一个IAB-donor(宿主)节点，IAB-donor节点有直接相连的有线传输网(Cable transport)。Referring to Figure 1a, a schematic diagram of an IAB system is shown. An IAB node includes a distributed processing unit (Distributed Unit, DU) functional part and a mobile terminal (Mobile Termination, MT) functional part. Relying on MT, an access point (ie IAB node) can find an upstream access point (parent IAB node) and establish a wireless connection with the DU of the upstream access point, which is called a backhaul link. . After an IAB node establishes a complete backhaul link, the IAB node turns on its DU function, and the DU provides cell services, that is, the DU can provide access services for the UE. A self-return loop includes an IAB-donor (host) node, and the IAB-donor node has a directly connected cable transport network (Cable transport).

参见图1b，图中示出一个IAB系统的CU-DU结构图。在一个自回传回路中，所有的IAB节点的DU都连接到一个CU节点，由这一个节点通过F1应用协议(F1application protocol，F1-AP)协议进行对DU进行配置。CU通过无线资源控制(Radio Resource Control，RRC)协议，对MT进行配置。IAB-donor节点没有MT功能部分。Referring to Fig. 1b, the figure shows a CU-DU structure diagram of an IAB system. In a self-backhaul loop, the DUs of all IAB nodes are connected to a CU node, and the DU is configured by this node through the F1 application protocol (F1 application protocol, F1-AP) protocol. The CU configures the MT through a radio resource control (Radio Resource Control, RRC) protocol. IAB-donor nodes do not have the MT functional part.

IAB系统的引入是为了解决接入点密集部署时，有线传输网部署不到位的情况。即在没有有线传输网络时，接入点可以依赖无线回传。The introduction of the IAB system is to solve the situation that the wired transmission network is not deployed in place when the access points are densely deployed. That is, when there is no wired transmission network, the access point can rely on wireless backhaul.

IAB节点之间的无线链路称为Backhaul(BH)link，BH link上配置有Backhaul(BH)RLC信道(channel)进行无线回传。The wireless link between IAB nodes is called Backhaul (BH) link, and a Backhaul (BH) RLC channel (channel) is configured on the BH link for wireless backhaul.

下面结合附图对IAB网络中IAB节点进行无线链路恢复时可能出现的情况进行描述：The following describes the situation that may occur when the IAB node in the IAB network performs wireless link recovery in conjunction with the accompanying drawings:

参见图1c，图中示出一种IAB网络，包括IAB-donor-CU1、IAB-donor-CU2、IAB-donor-DU11、IAB-donor-DU12、IAB-donor-DU2、IAB1～IAB6、UE；其中IAB-donor-DU11和IAB-donor-DU12处于IAB-donor-CU1下，IAB-donor-DU2处于IAB-donor-CU2下，IAB1处于IAB-donor-DU2下，IAB2处于IAB-donor-DU11下，IAB3和IAB4处于IAB-donor-DU12下，IAB5为IAB4的下游IAB节点，IAB6为IAB5的下游IAB节点，UE为IAB6的下游节点。Referring to FIG. 1c, an IAB network is shown, including IAB-donor-CU1, IAB-donor-CU2, IAB-donor-DU11, IAB-donor-DU12, IAB-donor-DU2, IAB1-IAB6, and UE; Among them, IAB-donor-DU11 and IAB-donor-DU12 are under IAB-donor-CU1, IAB-donor-DU2 is under IAB-donor-CU2, IAB1 is under IAB-donor-DU2, and IAB2 is under IAB-donor-DU11 , IAB3 and IAB4 are under IAB-donor-DU12, IAB5 is the downstream IAB node of IAB4, IAB6 is the downstream IAB node of IAB5, and UE is the downstream node of IAB6.

如果IAB4和IAB5之间链路有问题，即无线链路失败，则进行无线链路恢复，此时IAB5有可能恢复到IAB1～IAB4中任意一个，具体地：If there is a problem with the link between IAB4 and IAB5, that is, the wireless link fails, the wireless link will be restored. At this time, IAB5 may be restored to any one of IAB1 to IAB4, specifically:

情况一：IAB节点与进行无线链路恢复的节点属于同一IAB-donor-CU下的同一IAB-donor-DU，即intra-IAB-donor-CU intra-IAB-donor-DU；Case 1: The IAB node and the node performing wireless link recovery belong to the same IAB-donor-DU under the same IAB-donor-CU, namely intra-IAB-donor-CU intra-IAB-donor-DU;

在情况一中，IAB5恢复到了IAB3下，IAB3与IAB4均处于IAB-donor-CU1下的IAB-donor-DU12下，因此属于intra-IAB-donor-CU，intra-IAB-donor-DU；Incase 1, IAB5 is restored to IAB3, and both IAB3 and IAB4 are under IAB-donor-DU12 under IAB-donor-CU1, so they belong to intra-IAB-donor-CU, intra-IAB-donor-DU;

情况二：IAB节点与进行无线链路恢复的节点属于同一IAB-donor-CU下的不同IAB-donor-DU，即intra-IAB-donor-CU，inter-IAB-donor-DU；Case 2: The IAB node and the node performing radio link recovery belong to different IAB-donor-DUs under the same IAB-donor-CU, namely intra-IAB-donor-CU, inter-IAB-donor-DU;

在情况二中，IAB5恢复到了IAB2下，IAB2与IAB4处于IAB-donor-CU1下，但IAB2处于IAB-donor-DU11下，IAB4处于IAB-donor-DU12下，因此属于intra-IAB-donor-CU，inter-IAB-donor-DU；Incase 2, IAB5 is restored to IAB2, IAB2 and IAB4 are under IAB-donor-CU1, but IAB2 is under IAB-donor-DU11, and IAB4 is under IAB-donor-DU12, so it belongs to intra-IAB-donor-CU , inter-IAB-donor-DU;

情况三：该IAB节点与进行无线链路恢复的节点属于不同IAB-donor-CU，即inter-IAB-donor-CU；Case 3: The IAB node and the node performing radio link recovery belong to different IAB-donor-CUs, namely inter-IAB-donor-CU;

在情况三中，IAB5恢复到了IAB1下，IAB1处于IAB-donor-CU2下，IAB1处于IAB-donor-CU1下，因此属于inter-IAB-donor-CU；In case 3, IAB5 is restored to IAB1, IAB1 is under IAB-donor-CU2, and IAB1 is under IAB-donor-CU1, so it belongs to inter-IAB-donor-CU;

在IAB4与IAB5间的回传链路检测到RLF后，IAB5会向IAB6发送type-2 RLF indication，如果IAB6下面还有子节点，那么IAB6在只有单条链路的情况下会继续转发type-2 RLF indication给其子节点，如果IAB6有两条链路，且另一条链路上也收到过type-2/4 RLF indication，则也会继续转发type-2 RLF indication给其子节点。After the backhaul link between IAB4 and IAB5 detects RLF, IAB5 will send the type-2 RLF indication to IAB6. If there are child nodes under IAB6, then IAB6 will continue to forward type-2 when there is only a single link. RLF indication to its child nodes, if IAB6 has two links, and the other link has also received type-2/4 RLF indication, it will continue to forward type-2 RLF indication to its child nodes.

BAP Control PDUBAP Control PDU

回传自适应协议控制协议数据单元(Backhaul Adaptation Protocol Control Protocol Data Unit，BAP control PDU)用来承载BAP层的控制信息。目前已经定义4个BAP control PDU类型：The backhaul adaptation protocol control protocol data unit (Backhaul Adaptation Protocol Control Protocol Data Unit, BAP control PDU) is used to carry the control information of the BAP layer. Four BAP control PDU types have been defined so far:

(1)BH RLF indication(也可称为type-4 RLF indication)：一个IAB节点可以用该BAP control PDU可以用来通知其子IAB节点该IAB节点与其父节点之间无线链路恢复失败的消息；(1) BH RLF indication (also known as type-4 RLF indication): An IAB node can use the BAP control PDU to notify its child IAB node that the radio link between the IAB node and its parent node fails to recover ;

如假设IAB网络拓扑结构为：For example, suppose the IAB network topology is:

IAB1->IAB2->IAB3->IAB-donor-DU->IAB-donor-CU；IAB1->IAB2->IAB3->IAB-donor-DU->IAB-donor-CU;

假设IAB2与父节点IAB3之间的链路发生了RLF，且进行RLF recovery失败了，则IAB2会向其子节点IAB1发送BH RLF indication，用于告知IAB1节点IAB2与IAB3之间的链路出现问题。Assuming that RLF occurs on the link between IAB2 and parent node IAB3, and the RLF recovery fails, then IAB2 will send BH RLF indication to its child node IAB1 to inform IAB1 that there is a problem with the link between IAB2 and IAB3 .

(2)每个BH RLC通道的流量控制反馈(Flow control feedback per BH RLC channel)：按BH RLC channel进行下行流量控制报告的BAP control PDU类型，由子IAB节点向父IAB节点汇报；(2) Flow control feedback per BH RLC channel: BAP control PDU type for downlink flow control report by BH RLC channel, which is reported by the child IAB node to the parent IAB node;

(3)每个BAP路由标识(Identity Document，ID)的流量控制反馈(Flow control feedback per BAP routing ID)：按BAP routing ID进行下行流量控制报告的BAP control PDU类型，由子IAB节点向父IAB节点汇报；(3) Flow control feedback (Flow control feedback per BAP routing ID) of each BAP routing ID (Identity Document, ID): BAP control PDU type for downlink flow control reporting by BAP routing ID, from the child IAB node to the parent IAB node report;

(4)流量控制反馈轮询(Flow control feedback polling)：父IAB节点向子IAB节点询问下行流量控制报告的BAP control PDU类型，由父IAB节点向子IAB节点发送；(4) Flow control feedback polling: The parent IAB node asks the child IAB node for the BAP control PDU type of the downlink flow control report, which is sent by the parent IAB node to the child IAB node;

参见图1d，图中示出BAP control PDU的头部(header)结构:Referring to Figure 1d, the header structure of the BAP control PDU is shown:

其中PDU类型(PDU Type)域用来指示BAP control PDU的类型，现有BAP control PDU类型指示如表1所示：The PDU Type (PDU Type) field is used to indicate the type of BAP control PDU. The existing BAP control PDU type indication is shown in Table 1:

比特(Bit)Bit (Bit)描述(Description)Description00000000Flow control feedback per BH RLC channelFlow control feedback per BH RLC channel00010001Flow control feedback per BAP routing IDFlow control feedback per BAP routing ID00100010Flow control feedback pollingFlow control feedback polling00110011BH RLF indicationBH RLF indication0100-11110100-1111ReservedReserved

表1Table 1

使用BAP control PDU的情形：Scenarios using BAP control PDUs:

(1)type-2 BH RLF indication：一个IAB节点与其父IAB节点的无线链路失败，向子IAB节点通知RLF发现；(1) type-2 BH RLF indication: The radio link between an IAB node and its parent IAB node fails, and the child IAB node is notified of RLF discovery;

(2)type-3 BH RLF indication：一个IAB节点与其父IAB节点的无线链路失败后无线链路恢复成功，向子IAB节点通知RLF恢复成功；(2) type-3 BH RLF indication: After the radio link between an IAB node and its parent IAB node fails, the radio link is restored successfully, and the child IAB node is notified of the successful RLF restoration;

具体规定如下：The specific provisions are as follows:

(1)RAN2支持2/3型RLF指示(行为TS影响待定，FFS详细信息待定)(RAN2 to support type-2/3 RLF indication(FFS specified behavior(s)TS impact,FFS details))。(1) RAN2 to support type-2/3 RLF indication(FFS specified behavior(s)TS impact, FFS details)).

(2)类型2RLF指示可用于触发SR和/或BSR传输的停用或减少(type-2 RLF indication may be used to trigger deactivation or reduction of SR and/or BSR transmissions)。(2) Type-2 RLF indication may be used to trigger deactivation or reduction of SR and/or BSR transmissions (type-2 RLF indication may be used to trigger deactivation or reduction of SR and/or BSR transmissions).

对于IAB节点与进行无线链路恢复的节点属于不同IAB-donor-CU(inter CU)的场景，如果该IAB节点的下游IAB节点接收到type-3 RLF indication就开始恢复对UE数据的上行调度，由于PDCP的anchor点从源CU转为目标CU(用于加密数据的秘钥等发生了改变)，则会导致最终到达目标CU的数据无法被目标CU成功解码，UE发送的数据最终将会被丢失。For the scenario where the IAB node and the node performing radio link recovery belong to different IAB-donor-CU (inter CU), if the downstream IAB node of the IAB node receives the type-3 RLF indication, it starts to resume the uplink scheduling of UE data, Since the anchor point of PDCP is changed from the source CU to the target CU (the key used to encrypt the data has changed), the data that finally reaches the target CU cannot be successfully decoded by the target CU, and the data sent by the UE will eventually be decoded by the target CU. lost.

下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的数据调度方法进行详细地说明。The data scheduling method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

参见图2，本申请实施例提供一种一种数据调度方法，包括：Referring to FIG. 2, an embodiment of the present application provides a data scheduling method, including:

步骤201：第一IAB节点接收BAP control PDU；Step 201: the first IAB node receives the BAP control PDU;

步骤202：第一IAB节点根据BAP control PDU，对第一IAB节点的下游节点执行对应的数据调度操作；Step 202: the first IAB node performs a corresponding data scheduling operation on the downstream node of the first IAB node according to the BAP control PDU;

在本申请实施例中，第一IAB节点为第二IAB节点的下游节点，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，第三IAB节点为第二IAB节点进行无线链路恢复之后的上游IAB节点，第四IAB节点为第二IAB节点进行无线链路恢复之前的上游IAB节点；第一IAB节点的下游节点为IAB节点或者终端。In the embodiment of this application, the first IAB node is the downstream node of the second IAB node, the BAP control PDU is used to indicate whether the topology network accessed by the third IAB node and the fourth IAB node has changed, and the third IAB node is the first IAB node. The upstream IAB node after the second IAB node performs wireless link recovery, the fourth IAB node is the upstream IAB node before the second IAB node performs wireless link recovery; the downstream node of the first IAB node is an IAB node or a terminal.

具体地，以图1c所示场景为例进行解释说明，本申请实施例中的第一IAB节点相当于图1c中的IAB6，第二IAB节点当于图1c中的IAB5，第三IAB节点当于图1c中的IAB1～IAB4中任意一个(即第二IAB节点进行无线链路恢复之后可以恢复至IAB1～IAB4中任意一个)，第四IAB节点当于图1c中的IAB4(即第二IAB节点进行无线链路恢复之前是IAB4的下游IAB节点)。Specifically, taking the scenario shown in FIG. 1c as an example for explanation, the first IAB node in this embodiment of the present application is equivalent to IAB6 in FIG. 1c , the second IAB node is equivalent to IAB5 in FIG. 1c , and the third IAB node is In any one of IAB1-IAB4 in Figure 1c (that is, the second IAB node can recover to any one of IAB1-IAB4 after the wireless link recovery), the fourth IAB node is equivalent to IAB4 in Figure 1c (that is, the second IAB The node is the downstream IAB node of IAB4 before radio link recovery).

需要说明的是，本申请实施例中的BAP control PDU用于指示下发该消息的IAB节点与进行无线链路恢复的IAB节点之间的拓扑结构关系变化，拓扑结构指的是一个网络部署，上述第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，指的是在进行无线链路恢复以后，网络部署的变化情况。It should be noted that the BAP control PDU in the embodiment of the present application is used to indicate the change of the topology structure relationship between the IAB node that issues the message and the IAB node that performs wireless link recovery, and the topology structure refers to a network deployment, Whether the topology network to which the third IAB node and the fourth IAB node are connected changes refers to the change in network deployment after the wireless link recovery is performed.

本申请实施例中，通过设计一种能够指示接入的拓扑网络是否发生变化的BAP control PDU，具体地，是设计一种新的type-3RLF indication的信令，使得第一IAB节点能够获知无线链路恢复之后拓扑网络的变化情况，并执行对应的数据调度操作，从而避免丢失上行传输数据，提高上行数据的传输可靠性。In the embodiment of the present application, by designing a BAP control PDU that can indicate whether the access topology network has changed, specifically, a new type-3 RLF indication signaling is designed, so that the first IAB node can know the wireless Changes in the topology network after the link is restored, and perform corresponding data scheduling operations, thereby avoiding loss of uplink transmission data and improving the transmission reliability of uplink data.

本申请实施例提供几种BAP control PDU的实施方式：The embodiments of this application provide several implementations of the BAP control PDU:

实施方式一：Embodiment 1:

在本申请实施方式中，BAP control PDU中包含第一指示域，可选地，如图3a所示，采用现有BAP Control PDU的header中的1个reserved bit，定义其为拓扑指示(图3a中为TI，topology indicator)，通过该TI来指示拓扑网络的变化情况，具体如下：In the embodiment of the present application, the BAP control PDU includes a first indication field. Optionally, as shown in Figure 3a, a reserved bit in the header of the existing BAP Control PDU is used to define it as a topology indication (Figure 3a). The middle is TI, topology indicator), through which the TI is used to indicate the change of the topology network, as follows:

(1)当第一指示域为第一值，例如TI＝0时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下，表示拓扑关系为“同CU”；当第一指示域为第二值，例如TI＝1时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于不同的IAB-donor-CU下，表示拓扑关系为“不同CU”；(1) When the first indication field is the first value, such as TI=0, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU, indicating that The topology relationship is "same CU"; when the first indication field is the second value, such as TI=1, the BAP control PDU is used to indicate that the topological networks accessed by the third IAB node and the fourth IAB node are in different IAB- Under the donor-CU, it indicates that the topology relationship is "different CU";

(2)当第一指示域为第一值，例如TI＝0时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下，表示拓扑关系为“同donor-DU”；当第一指示域为第二值，例如TI＝1时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下，表示拓扑关系为无线链路恢复到新donor-DU，即“不同donor-DU”；(2) When the first indication field is the first value, for example, TI=0, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU, indicating that The topology relationship is "same donor-DU"; when the first indication field is the second value, for example, TI=1, the BAP control PDU is used to indicate that the topological networks accessed by the third IAB node and the fourth IAB node are in different IABs Under -donor-DU, it means that the topology relationship is that the wireless link is restored to the new donor-DU, that is, "different donor-DU";

(3)当第一指示域为第一值，例如TI＝0时，BAP control PDU用于指示第三IAB节点与第四IAB节点为相同的IAB节点，表示无线链路恢复成功，拓扑结构未发生变化；当第一指示域为第二值，例如TI＝1时，BAP control PDU用于指示第三IAB节点与第四IAB节点为不同的IAB节点，表示无线链路恢复成功，但拓扑结构已发生变化；(3) When the first indication field is the first value, for example, TI=0, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are the same IAB node, indicating that the wireless link is successfully recovered and the topology is not Change; when the first indication field is the second value, such as TI=1, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are different IAB nodes, indicating that the wireless link is successfully restored, but the topology structure has changed;

可选地，第一IAB节点根据BAP control PDU，对第一IAB节点的下游节点执行对应的数据调度操作，包括：Optionally, the first IAB node performs a corresponding data scheduling operation on the downstream node of the first IAB node according to the BAP control PDU, including:

(1)当第一指示域为第一值，例如TI＝0时，第一IAB节点恢复对第一IAB节点的下游节点的上行调度；(1) When the first indication field is a first value, for example, TI=0, the first IAB node resumes the uplink scheduling of the downstream nodes of the first IAB node;

(2)当第一指示域为第二值，例如TI＝1时，所述第一IAB节点停止对第一IAB节点的下游节点的上行调度。(2) When the first indication field is the second value, for example, TI=1, the first IAB node stops the uplink scheduling of the downstream nodes of the first IAB node.

实施方式二：Embodiment 2:

在BAP control PDU的PDU type域中定义N个新的type-3 RLF indication，分别指示不同的回传链路恢复情形，例如从PDU type域预留的0100-1111中定义N个新的type-3 RLF indication，具体如下：Define N new type-3 RLF indications in the PDU type field of the BAP control PDU to indicate different backhaul link recovery situations, for example, define N new type-3 types from 0100-1111 reserved in the PDU type field. 3 RLF indication, as follows:

(1)当BAP control PDU的PDU type域为第一值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU；当BAP control PDU的PDU type域为第二值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下的不同IAB-donor-DU下；当BAP control PDU的PDU type域为第三值时，BAP control PDU用于指示第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；(1) When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in the same IAB-donor-DU; when the BAP control PDU When the PDU type field is the second value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under a different IAB-donor-DU under the same IAB-donor-CU; when the BAP When the PDU type field of the control PDU is the third value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under different IAB-donor-CUs;

即，从预留的0100-1111中选择3个新的PDU type，如0100、0101和0110分别用来表示无线链路恢复到原donor-DU、无线链路恢复到原CU控制下的新donor-DU和无线链路恢复到新CU控制下的新donor-DU这3种情况。That is, select 3 new PDU types from the reserved 0100-1111, such as 0100, 0101 and 0110 to indicate that the wireless link is restored to the original donor-DU, and the wireless link is restored to the new donor under the control of the original CU. - The 3 cases where the DU and the radio link are restored to the new donor-DU under the control of the new CU.

(2)当BAP control PDU的PDU type域为第一值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下；当BAP control PDU的PDU type域为第二值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下；(2) When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU; when the BAP control PDU When the PDU type field of the PDU is the second value, the BAP control PDU is used to indicate that the topology networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-DUs;

即，从预留的0100-1111中选择2个新的PDU type，如0100、0101分别用来表示恢复到原donor-DU和恢复到新donor-DU这2种情况。That is, two new PDU types are selected from the reserved 0100-1111. For example, 0100 and 0101 are used to indicate the two cases of restoring to the original donor-DU and restoring to the new donor-DU.

(3)当BAP control PDU的PDU type域为第一值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下；当BAP control PDU的PDU type域为第二值时，BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；(3) When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU; when the BAP control PDU When the PDU type field of the PDU is the second value, the BAP control PDU is used to indicate that the topology networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs;

即，从预留的0100-1111中选择2个新的PDU type，如0100、0101分别用来表示恢复到原CU控制下的donor DU和恢复到新CU控制下的donor-DU这2种情况。That is, two new PDU types are selected from the reserved 0100-1111. For example, 0100 and 0101 are used to indicate the two situations of restoring the donor DU under the control of the original CU and restoring the donor-DU under the control of the new CU. .

(4)当BAP control PDU的PDU type域为第一值时，BAP control PDU用于指示第三IAB节点与第四IAB节点为相同的IAB节点；当BAP control PDU的PDU type域为第二值时，BAP control PDU用于指示第三IAB节点与第四IAB节点为不同的IAB节点。(4) When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are the same IAB node; when the PDU type field of the BAP control PDU is the second value , the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are different IAB nodes.

即，选择2个新的PDU type，如0100、0101分别用来表示无线链路恢复成功且拓扑结构未发生变化和表示无线链路恢复成功但拓扑结构已发生变化这2种情况。That is, two new PDU types are selected, such as 0100 and 0101, which are respectively used to indicate that the wireless link is successfully recovered and the topology has not changed, and that the wireless link has been successfully recovered but the topology has changed.

实施方式三：Embodiment three:

在本申请实施方式中，BAP control PDU中包含第二指示域，可选地，如图3b所示，从BAP control PDU的PDU type域预留的0100-1111中选择1个新的PDU type，如0100表示该BAP control PDU为Type3 RLF indication，在现有BAP Control PDU的header中新增一个拓扑自适应指示域(Topology adaptation indicator)，即第二指示域，通过第二指示域指示无线链路恢复成功后拓扑结构关系是否发生变化和/或发生变化的信息，具体如下：In the embodiment of the present application, the BAP control PDU contains a second indication field, optionally, as shown in Figure 3b, a new PDU type is selected from 0100-1111 reserved in the PDU type field of the BAP control PDU, For example, 0100 indicates that the BAP control PDU is Type3 RLF indication, and a topology adaptation indicator is added to the header of the existing BAP Control PDU, that is, the second indication field, which indicates the wireless link through the second indication field. Whether the topology structure relationship has changed and/or the information has changed after the recovery is successful, as follows:

BAP control PDU中的第二指示域用于指示以下任意一项：The second indication field in the BAP control PDU is used to indicate any of the following:

(1)第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下；(1) The topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU;

(2)第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下的不同IAB-donor-DU下；(2) The topology network accessed by the third IAB node and the fourth IAB node is under different IAB-donor-DUs under the same IAB-donor-CU;

(3)第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；(3) The topology networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs;

或者，BAP control PDU中的第二指示域用于指示以下任意一项：Alternatively, the second indication field in the BAP control PDU is used to indicate any of the following:

(2)第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下；(2) The topological networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-DUs;

(1)第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下；(1) The topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU;

(2)第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；(2) The topological networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs;

(1)第三IAB节点与第四IAB节点为相同的IAB节点；(1) The third IAB node and the fourth IAB node are the same IAB node;

(2)第三IAB节点与第四IAB节点为不同的IAB节点。(2) The third IAB node and the fourth IAB node are different IAB nodes.

需要说明的是，实施方式二与实施方式三之间的区别在于，采用实施方式二时，第一IAB节点需要先检测BAP control PDU中的PDU type域，然后再检测该PDU type域的值，从而获知第三IAB节点与第四IAB节点接入的拓扑网络情况，即包含两个步骤；采用实施方式三时，当第一IAB节点检测到BAP control PDU中的Topology adaptation indicator后，即可获知第三IAB节点与第四IAB节点接入的拓扑网络情况。即，实施方式三中只是在PDU type域采用1个新的PDU type，而不进行任何的增强。It should be noted that the difference between the second embodiment and the third embodiment is that when the second embodiment is adopted, the first IAB node needs to detect the PDU type field in the BAP control PDU first, and then detect the value of the PDU type field, Thereby, the topology network situation of the access of the third IAB node and the fourth IAB node is known, that is, two steps are included; when the third embodiment is adopted, when the first IAB node detects the Topology adaptation indicator in the BAP control PDU, it can be known. Topological network conditions that the third IAB node and the fourth IAB node access. That is, in the third embodiment, only one new PDU type is used in the PDU type field without any enhancement.

实施方式四：Embodiment four:

在本申请实施方式中，BAP control PDU中包含第三指示域，该第三指示域用于向第一IAB节点指示进行无线链路恢复成功的是哪条回传链路，具体地，第一IAB节点可以具有一个或多个上游IAB节点，以图1d所示场景为例，假设IAB5分别与IAB3和IAB4节点建立了连接(即IAB5处于双连接的场景中，其父节点为IAB3和IAB4)，IAB3与IAB4及IAB5间的回传链路发生无线链路失败，一段时间后IAB3与IAB5间的回传链路恢复成功，此时IAB5需要对下游节点发送所述BAP control PDU，如果该BAP control PDU中未携带标识信息说明是哪条链路恢复成功(IAB3与IAB5间的BH link，或者IAB4与IAB5间的BH link)，那么下游节点如IAB6在收到该BAP control PDU后也就无法知晓具体恢复成功的回传链路是哪一条，因此需要在BAP control PDU中设置一个第三指示域指示出具体是哪个回传链路恢复成功了。In the embodiment of the present application, the BAP control PDU includes a third indication field, and the third indication field is used to indicate to the first IAB node which backhaul link has successfully performed radio link recovery. Specifically, the first An IAB node can have one or more upstream IAB nodes. Taking the scenario shown in Figure 1d as an example, it is assumed that IAB5 has established connections with IAB3 and IAB4 nodes respectively (that is, IAB5 is in a dual-connection scenario, and its parent nodes are IAB3 and IAB4) , a radio link failure occurs in the backhaul link between IAB3 and IAB4 and IAB5. After a period of time, the backhaul link between IAB3 and IAB5 recovers successfully. At this time, IAB5 needs to send the BAP control PDU to the downstream node. If the BAP The control PDU does not carry the identification information to indicate which link is successfully restored (BH link between IAB3 and IAB5, or BH link between IAB4 and IAB5), then downstream nodes such as IAB6 cannot receive the BAP control PDU. Knowing which backhaul link is successfully recovered, it is necessary to set a third indication field in the BAP control PDU to indicate which backhaul link is recovered successfully.

具体地，当第三指示域为目标值时，BAP control PDU用于向第一IAB节点指示与目标值对应的回传链路恢复成功；即第一IAB节点根据第三指示域即可获知是哪个回传链路恢复成功了。Specifically, when the third indication field is the target value, the BAP control PDU is used to indicate to the first IAB node that the backhaul link corresponding to the target value is successfully restored; that is, the first IAB node can know that the Which backhaul link was successfully restored.

其中，第三指示域包括以下任意一项：Wherein, the third indication field includes any of the following:

BAP control PDU中的预留域；The reserved field in the BAP control PDU;

BAP路由标识(BAP routing ID)；BAP routing ID (BAP routing ID);

回传链路标识(BH Link ID)，该BH Link ID是由IAB-donor-CU为其拓扑网络下的每一条link进行统一管理编号的，并且通过F1AP或RRC信令下发给每个IAB节点；Backhaul link identification (BH Link ID), the BH Link ID is uniformly managed and numbered by IAB-donor-CU for each link under its topology network, and sent to each IAB through F1AP or RRC signaling node;

路径标识(Path ID)，表示某数据包的传输路径。Path ID, which indicates the transmission path of a data packet.

如图3c和图3d所示，复用现有BAP Control PDU的header中的1个reserved bit，根据该reserved bit的取值指示是哪个回传链路恢复成功，例如：该reserved bit取第一值时表示第一IAB节与上游IAB节点的第一回传链路恢复成功，取第二值时表示第一IAB节与上游IAB节点的第二回传链路恢复成功。As shown in Figure 3c and Figure 3d,reuse 1 reserved bit in the header of the existing BAP Control PDU, and indicate which return link is successfully restored according to the value of the reserved bit. For example, the reserved bit is the first When the value is set, it indicates that the first backhaul link between the first IAB section and the upstream IAB node is successfully restored, and when the second value is taken, it means that the second backhaul link between the first IAB section and the upstream IAB node is successfully restored.

需要说明的是，上述BAP routing ID(20bits)等于Path ID(10bits)加上目的地标识(destination ID(10bits))，即BAP routing ID＝Path ID+destination ID，其中Path ID表示数据包的传输路径，destination ID表示数据包要传输到的目标IAB节点。It should be noted that the above BAP routing ID (20bits) is equal to Path ID (10bits) plus destination ID (destination ID (10bits)), that is, BAP routing ID=Path ID+destination ID, where Path ID represents the transmission of data packets Path, destination ID indicates the destination IAB node to which the packet is to be transmitted.

在一些实施方式中，第一IAB节点根据BAP control PDU，对第一IAB节点的下游节点执行对应的数据调度操作，包括以下至少一项：In some embodiments, the first IAB node performs a corresponding data scheduling operation on the downstream nodes of the first IAB node according to the BAP control PDU, including at least one of the following:

(1)当BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下，即指示拓扑关系为intra-CU时，第一IAB节点恢复对第一IAB节点的下游节点的上行调度，或者待IAB-donor-CU进行BAP路由配置重配或者BAP路由映射配置重配后再恢复对第一IAB节点的下游节点的上行调度，或者是否恢复上行调度取决于实现；(1) When the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU, that is, when the topology relationship is indicated as intra-CU, the first IAB node restores the Uplink scheduling of the downstream node of the first IAB node, or after the IAB-donor-CU performs BAP routing configuration reconfiguration or BAP routing mapping configuration reconfiguration, the uplink scheduling of the downstream node of the first IAB node is resumed, or whether to resume the uplink scheduling depends on the implementation;

需要说明的是，上述“BAP路由配置重配”和“BAP路由映射配置重配”中的“重配”表示的意思是重新收到一个这样的配置，然后用新配置来替换旧配置。It should be noted that the "reconfiguration" in the above "BAP routing configuration reconfiguration" and "BAP routing mapping configuration reconfiguration" means that such a configuration is received again, and then the old configuration is replaced with the new configuration.

BAP路由配置重配针对中间节点传输的数据：一个IAB节点接收到上一个IAB节点传递过来的数据后，会在BAP层解析，如果解析后得到的目的地ID(destination ID)就是本节点的话，那么会停止往下传递；但是如果不是本节点，则需要根据BAP路由配置，从中找到这个数据包BAP header中携带的BAP routing ID在BAP路由配置中对应的下一跳IAB节点，从而进行数据的传输。BAP routing configuration reconfiguration is for the data transmitted by the intermediate node: after an IAB node receives the data transmitted by the previous IAB node, it will be parsed at the BAP layer. If the destination ID (destination ID) obtained after parsing is the current node, Then it will stop passing down; but if it is not this node, you need to find the next hop IAB node corresponding to the BAP routing ID carried in the BAP header of this data packet in the BAP routing configuration according to the BAP routing configuration, so as to perform data routing. transmission.

BAP路由映射配置针对高层来的数据：一个数据包如果从某一IAB节点高层(高于BAP层的协议层)产生，那么在BAP层生成数据时，需要在BAP header中填BAP routing ID，用来说明这个节点要传输到哪儿，通过哪条路径传输，这个时候要用到的就是BAP路由映射配置，也就是根据IP层的包头从BAP路由映射配置中找到对应需要填入BAP header的BAP routing ID。The BAP routing mapping configuration is for the data from the upper layer: if a data packet is generated from a higher layer of an IAB node (a protocol layer higher than the BAP layer), then when the data is generated at the BAP layer, the BAP routing ID needs to be filled in the BAP header, using To explain where this node is to be transmitted and which path to transmit through, what is used at this time is the BAP routing mapping configuration, that is, according to the packet header of the IP layer, find the corresponding BAP routing that needs to be filled in the BAP header from the BAP routing mapping configuration. ID.

上述是否恢复上行调度取决于实现(Left to implementation)，指的是具体的操作看各个厂商的实现方法，不进行标准化。Whether to restore the uplink scheduling depends on the implementation (Left to implementation), which means that the specific operation depends on the implementation method of each manufacturer, and is not standardized.

(2)当BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下，即指示拓扑关系为inter-IAB-donor-CU时，在IAB-donor-CU对第一IAB节点服务的所有终端完成RRC重配之前，第一IAB节点停止对第一IAB节点的下游节点的上行调度；(2) When the BAP control PDU is used to indicate that the topological networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs, that is, when the topological relationship is indicated as inter-IAB-donor-CU, in the IAB - Before the donor-CU completes RRC reconfiguration for all terminals served by the first IAB node, the first IAB node stops the uplink scheduling of the downstream nodes of the first IAB node;

(3)当BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下，或者处于相同IAB-donor-CU下的不同IAB-donor-DU下，即指示拓扑关系为intra-IAB-donor-CU，intra-IAB-donor-DU或intra-IAB-donor-CU，inter-donor-DU时，第一IAB节点恢复对第一IAB节点的下游节点的上行调度，或者待IAB-donor-CU进行BAP路由配置或者BAP路由映射配置重配后再恢复对第一IAB节点的下游节点的上行调度，或者是否恢复上行调度取决于实现。(3) When the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU, or different IAB-donor-DU under the same IAB-donor-CU down, that is, when the topology relationship is indicated as intra-IAB-donor-CU, intra-IAB-donor-DU or intra-IAB-donor-CU, inter-donor-DU, the first IAB node restores the downstream of the first IAB node The upstream scheduling of the node, or after the IAB-donor-CU reconfigures the BAP routing configuration or the BAP routing mapping configuration, restores the upstream scheduling for the downstream node of the first IAB node, or whether to restore the upstream scheduling depends on the implementation.

在一些实施方式中，本方法还包括：In some embodiments, the method further includes:

(1)第一IAB节点停止对第一IAB节点的下游节点的上行调度；(1) The first IAB node stops the uplink scheduling of the downstream nodes of the first IAB node;

(2)当满足预设条件时，第一IAB节点恢复对第一IAB节点的下游节点的上行调度；(2) When the preset condition is met, the first IAB node resumes the uplink scheduling of the downstream nodes of the first IAB node;

其中，预设条件包括以下至少一项：The preset conditions include at least one of the following:

(1)第一IAB节点从第二IAB节点接收调度消息，即如果某节点被上游节点调度，则该节点可以开始调度其下游节点的上行传输数据。(1) The first IAB node receives a scheduling message from the second IAB node, that is, if a node is scheduled by an upstream node, the node can start to schedule uplink transmission data of its downstream node.

(2)IAB-donor-CU对第一IAB节点服务的所有终端完成RRC重配；(2) IAB-donor-CU completes RRC reconfiguration for all terminals served by the first IAB node;

(3)下游节点从IAB-donor-CU接收新的BAP路由配置或者BAP路由映射配置；(3) The downstream node receives the new BAP routing configuration or BAP routing mapping configuration from the IAB-donor-CU;

(4)下游节点从IAB-donor-CU、IAB-donor-DU或第二IAB节点接收恢复上行数据发送的指示信息。(4) The downstream node receives from the IAB-donor-CU, the IAB-donor-DU or the second IAB node the indication information for resuming uplink data transmission.

需要说明的是，本申请实施例提供的数据调度方法，执行主体可以为数据调度装置，或者，该数据调度装置中的用于执行数据调度方法的控制模块。本申请实施例中以数据调度装置执行数据调度方法为例，说明本申请实施例提供的数据调度装置。It should be noted that, in the data scheduling method provided by the embodiments of the present application, the execution body may be a data scheduling apparatus, or a control module in the data scheduling apparatus for executing the data scheduling method. In the embodiment of the present application, the data scheduling device provided by the embodiment of the present application is described by taking the data scheduling method performed by the data scheduling device as an example.

参见图4，本申请实施例一种数据调度装置400，包括：Referring to FIG. 4 , adata scheduling apparatus 400 according to an embodiment of the present application includes:

接收模块401，用于第一IAB节点接收BAP control PDU，所述第一IAB节点为第二IAB节点的下游节点，所述BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，所述第三IAB节点为所述第二IAB节点进行无线链路恢复之后的上游IAB节点，所述第四IAB节点为所述第二IAB节点进行无线链路恢复之前的上游IAB节点；The receivingmodule 401 is used for the first IAB node to receive the BAP control PDU, the first IAB node is the downstream node of the second IAB node, and the BAP control PDU is used to indicate the access point between the third IAB node and the fourth IAB node. Whether the topology network has changed, the third IAB node is the upstream IAB node after the second IAB node performs radio link recovery, and the fourth IAB node is the second IAB node before the wireless link recovery is performed. Upstream IAB node;

第一调度模块402，用于所述第一IAB节点根据所述BAP control PDU，对所述第一IAB节点的下游节点执行对应的数据调度操作，所述第一IAB节点的下游节点为IAB节点或者终端。Thefirst scheduling module 402 is used for the first IAB node to perform a corresponding data scheduling operation on the downstream node of the first IAB node according to the BAP control PDU, and the downstream node of the first IAB node is the IAB node or terminal.

在一些实施方式中，所述BAP control PDU中包含第一指示域；In some embodiments, the BAP control PDU includes a first indication field;

当所述第一指示域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB宿主集中处理单元IAB-donor-CU下；当所述第一指示域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同的IAB-donor-CU下；When the first indication field is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in the same IAB host centralized processing unit IAB-donor - under CU; when the first indication field is the second value, the BAP control PDU is used to indicate that the topology networks accessed by the third IAB node and the fourth IAB node are in different IAB-donors -under CU;

或者，or,

当所述第一指示域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同宿主分布处理单元IAB-donor-DU下；当所述第一指示域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下；When the first indication field is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in the same host distribution processing unit IAB-donor- DU; when the first indication field is the second value, the BAP control PDU is used to indicate that the topology networks accessed by the third IAB node and the fourth IAB node are in different IAB-donor-DUs Down;

或者，or,

当所述第一指示域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点为相同的IAB节点；当所述第一指示域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点为不同的IAB节点；When the first indication field is the first value, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are the same IAB node; when the first indication field is the second IAB node value, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are different IAB nodes;

所述第一调度模块，进一步用于：The first scheduling module is further used for:

当所述第一指示域为第一值时，所述第一IAB节点恢复对所述第一IAB节点的下游节点的上行调度；When the first indication field is the first value, the first IAB node restores the uplink scheduling to the downstream nodes of the first IAB node;

当所述第一指示域为第二值时，所述第一IAB节点停止对所述第一IAB节点的下游节点的上行调度。When the first indication field is the second value, the first IAB node stops the uplink scheduling of the downstream nodes of the first IAB node.

在一些实施方式中，当所述BAP control PDU的PDU type域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU；当所述BAP control PDU的PDU type域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下的不同IAB-donor-DU下；当所述BAP control PDU的PDU type域为第三值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；In some embodiments, when the PDU type field of the BAP control PDU is a first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in The same IAB-donor-DU; when the PDU type field of the BAP control PDU is the second value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is Under different IAB-donor-DUs under the same IAB-donor-CU; when the PDU type field of the BAP control PDU is a third value, the BAP control PDU is used to indicate that the third IAB node is related to the The topology network accessed by the fourth IAB node is under different IAB-donor-CUs;

或者，or,

当所述BAP control PDU的PDU type域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下；当所述BAP control PDU的PDU type域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下；When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node are in the same IAB-donor-DU When the PDU type field of the BAP control PDU is the second value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in a different IAB-donor - under DU;

或者，or,

当所述BAP control PDU的PDU type域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下；当所述BAP control PDU的PDU type域为第二值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node are in the same IAB-donor-CU When the PDU type field of the BAP control PDU is the second value, the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is in a different IAB-donor -under CU;

或者，or,

当所述BAP control PDU的PDU type域为第一值时，所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点为相同的IAB节点；当所述BAP control PDU的PDU type域为第二值时，所述BAP control PDU 用于指示所述第三IAB节点与所述第四IAB节点为不同的IAB节点。When the PDU type field of the BAP control PDU is the first value, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are the same IAB node; When the PDU type field is the second value, the BAP control PDU is used to indicate that the third IAB node and the fourth IAB node are different IAB nodes.

在一些实施方式中，所述BAP control PDU中包含第二指示域；In some embodiments, the BAP control PDU includes a second indication field;

所述BAP control PDU中的第二指示域用于指示以下任意一项：The second indication field in the BAP control PDU is used to indicate any of the following:

所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下；The topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU;

所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下的不同IAB-donor-DU下；The topology network accessed by the third IAB node and the fourth IAB node is under different IAB-donor-DUs under the same IAB-donor-CU;

所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下；The topology networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs;

或者，or,

所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-DU下；The topology networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-DUs;

或者，or,

所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下；The topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU;

或者，or,

所述第三IAB节点与所述第四IAB节点为相同的IAB节点；The third IAB node and the fourth IAB node are the same IAB node;

所述第三IAB节点与所述第四IAB节点为不同的IAB节点。The third IAB node and the fourth IAB node are different IAB nodes.

在一些实施方式中，所述第一调度模块，进一步用于以下至少一项：In some embodiments, the first scheduling module is further used for at least one of the following:

当所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-CU下时，所述第一IAB节点恢复对所述第一IAB节点的下游节点的上行调度，或者待IAB-donor-CU进行BAP 路由配置重配或者BAP路由映射配置重配后再恢复对所述第一IAB节点的下游节点的上行调度；When the BAP control PDU is used to indicate that the topology network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-CU, the first IAB node resumes the first IAB node Uplink scheduling of the downstream node of the IAB node, or after the IAB-donor-CU performs BAP routing configuration reconfiguration or BAP routing mapping configuration reconfiguration, restore the uplink scheduling of the downstream node of the first IAB node;

当所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于不同IAB-donor-CU下时，在IAB-donor-CU对所述第一IAB节点服务的所有终端完成无线资源控制RRC重配之前，所述第一IAB节点停止对所述第一IAB节点的下游节点的上行调度；When the BAP control PDU is used to indicate that the topological networks accessed by the third IAB node and the fourth IAB node are under different IAB-donor-CUs, the IAB-donor-CU controls the first IAB Before all terminals served by the node complete the RRC reconfiguration, the first IAB node stops the uplink scheduling of the downstream nodes of the first IAB node;

当所述BAP control PDU用于指示所述第三IAB节点与所述第四IAB节点接入的拓扑网络为处于相同IAB-donor-DU下，或者处于相同IAB-donor-CU下的不同IAB-donor-DU下时，所述第一IAB节点恢复对所述第一IAB节点的下游节点的上行调度，或者待IAB-donor-CU进行BAP路由配置或者BAP路由映射配置重配后再恢复对所述第一IAB节点的下游节点的上行调度。When the BAP control PDU is used to indicate that the topological network accessed by the third IAB node and the fourth IAB node is under the same IAB-donor-DU, or under the same IAB-donor-CU under different IAB- When the donor-DU is down, the first IAB node resumes the uplink scheduling of the downstream nodes of the first IAB node, or resumes the reconfiguration of the BAP route configuration or the BAP route mapping configuration after the IAB-donor-CU reconfigures the BAP route mapping configuration. Describe the uplink scheduling of the downstream node of the first IAB node.

在一些实施方式中，所述装置还包括：In some embodiments, the apparatus further comprises:

所述第二调度模块，用于所述第一IAB节点停止对所述第一IAB节点的下游节点的上行调度；the second scheduling module, configured for the first IAB node to stop the uplink scheduling of the downstream nodes of the first IAB node;

所述第三调度模块，用于当满足预设条件时，所述第一IAB节点恢复对所述第一IAB节点的下游节点的上行调度；the third scheduling module, configured to restore, by the first IAB node, the uplink scheduling to the downstream nodes of the first IAB node when a preset condition is met;

其中，所述预设条件包括以下至少一项：Wherein, the preset condition includes at least one of the following:

所述第一IAB节点从第二IAB节点接收调度消息；the first IAB node receives a scheduling message from the second IAB node;

IAB-donor-CU对所述第一IAB节点服务的所有终端完成RRC重配；The IAB-donor-CU completes RRC reconfiguration for all terminals served by the first IAB node;

所述下游节点从IAB-donor-CU接收新的BAP路由配置或者BAP路由映射配置；The downstream node receives a new BAP routing configuration or a BAP routing mapping configuration from the IAB-donor-CU;

所述下游节点从IAB-donor-CU、IAB-donor-DU或第二IAB节点接收恢复上行数据发送的指示信息。The downstream node receives, from the IAB-donor-CU, the IAB-donor-DU or the second IAB node, instruction information for resuming uplink data transmission.

在一些实施方式中，所述BAP control PDU中包含第三指示域；In some embodiments, the BAP control PDU includes a third indication field;

当所述第三指示域为目标值时，所述BAP control PDU用于向所述第一IAB节点指示与所述目标值对应的回传链路恢复成功；When the third indication field is the target value, the BAP control PDU is used to indicate to the first IAB node that the backhaul link corresponding to the target value is successfully restored;

其中，所述第三指示域包括以下任意一项：Wherein, the third indication field includes any of the following:

所述BAP control PDU中的预留域；the reserved field in the BAP control PDU;

BAP routing ID；BAP routing ID;

BH Link ID；BH Link ID;

Path ID。Path ID.

本申请实施例中的数据调度装置可以是装置，具有操作系统的装置或电子设备，也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(Personal Computer，PC)、电视机(Television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。The data scheduling apparatus in this embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television ( Television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

本申请实施例提供的数据调度装置能够实现图2的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。The data scheduling apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiment in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

可选的，如图5所示，本申请实施例还提供一种通信设备500，包括处理器501，存储器502，存储在存储器502上并可在所述处理器501上运行的程序或指令，例如，该通信设备500为终端时，该程序或指令被处理器501执行时实现上述数据调度方法实施例的各个过程，且能达到相同的技术效果。该通信设备500为网络侧设备时，该程序或指令被处理器501执行时实现上述数据调度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, as shown in FIG. 5 , an embodiment of the present application further provides acommunication device 500, including aprocessor 501, amemory 502, a program or instruction stored in thememory 502 and executable on theprocessor 501, For example, when thecommunication device 500 is a terminal, when the program or instruction is executed by theprocessor 501, each process of the foregoing data scheduling method embodiment is implemented, and the same technical effect can be achieved. When thecommunication device 500 is a network-side device, when the program or instruction is executed by theprocessor 501, each process of the above data scheduling method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not described here.

本申请实施例还提供一种第一IAB节点，包括处理器和通信接口，其中，所述通信接口用于第一IAB节点接收BAP control PDU，所述第一IAB节点为第二IAB节点的下游节点，所述BAP control PDU用于指示第三IAB节点与第四IAB节点接入的拓扑网络是否发生变化，所述第三IAB节点为所述第二IAB节点进行无线链路恢复之后的上游IAB节点，所述第四IAB节点为所述第二IAB节点进行无线链路恢复之前的上游IAB节点；所述处理器用于所述第一IAB节点根据所述BAP control PDU，对所述第一IAB节点的下游节点执行对应的数据调度操作，所述第一IAB节点的下游节点为IAB节点或者终端。该网络侧设备实施例是与上述网络侧设备方法实施例对应的，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。An embodiment of the present application further provides a first IAB node, including a processor and a communication interface, wherein the communication interface is used for the first IAB node to receive a BAP control PDU, and the first IAB node is downstream of the second IAB node node, the BAP control PDU is used to indicate whether the topology network accessed by the third IAB node and the fourth IAB node has changed, and the third IAB node is the upstream IAB after the second IAB node performs wireless link recovery node, the fourth IAB node is the upstream IAB node before the second IAB node performs radio link recovery; the processor is used by the first IAB node to perform the operation of the first IAB node according to the BAP control PDU A downstream node of the node performs a corresponding data scheduling operation, and the downstream node of the first IAB node is an IAB node or a terminal. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

具体地，本申请实施例还提供了一种第一IAB节点。如图6所示，该第一IAB节点600包括：天线61、射频装置62、基带装置63。天线61与射频装置62连接。在上行方向上，射频装置62通过天线61接收信息，将接收的信息发送给基带装置63进行处理。在下行方向上，基带装置63对要发送的信息进行处理，并发送给射频装置62，射频装置62对收到的信息进行处理后经过天线61发送出去。Specifically, the embodiment of the present application further provides a first IAB node. As shown in FIG. 6 , thefirst IAB node 600 includes: anantenna 61 , aradio frequency device 62 , and abaseband device 63 . Theantenna 61 is connected to theradio frequency device 62 . In the uplink direction, theradio frequency device 62 receives information through theantenna 61, and sends the received information to thebaseband device 63 for processing. In the downlink direction, thebaseband device 63 processes the information to be sent and sends it to theradio frequency device 62 , and theradio frequency device 62 processes the received information and sends it out through theantenna 61 .

上述频带处理装置可以位于基带装置63中，以上实施例中第一IAB节点执行的方法可以在基带装置63中实现，该基带装置63包括处理器64和存储器y5。The above-mentioned frequency band processing apparatus may be located in thebaseband apparatus 63, and the method performed by the first IAB node in the above embodiment may be implemented in thebaseband apparatus 63, where thebaseband apparatus 63 includes aprocessor 64 and a memory y5.

基带装置63例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图6所示，其中一个芯片例如为处理器64，与存储器65连接，以调用存储器65中的程序，执行以上方法实施例中所示的网络设备操作。Thebaseband device 63 may include, for example, at least one baseband board on which a plurality of chips are arranged. As shown in FIG. 6 , one of the chips is, for example, theprocessor 64 and is connected to thememory 65 to call the program in thememory 65 to execute The network devices shown in the above method embodiments operate.

该基带装置63还可以包括网络接口66，用于与射频装置62交互信息，该接口例如为通用公共无线接口(Common Public Radio Interface，简称CPRI)。Thebaseband device 63 may further include anetwork interface 66 for exchanging information with theradio frequency device 62, and the interface is, for example, a Common Public Radio Interface (CPRI for short).

具体地，本发明实施例的网络侧设备还包括：存储在存储器65上并可在处理器64上运行的指令或程序，处理器64调用存储器65中的指令或程序执行图6所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。Specifically, the network-side device in the embodiment of the present invention further includes: instructions or programs stored in thememory 65 and executable on theprocessor 64, and theprocessor 64 invokes the instructions or programs in thememory 65 to execute the modules shown in FIG. 6 . The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

本申请实施例还提供一种计算机程序产品，所述计算机程序产品被存储在非易失的存储介质中，所述计算机程序产品被至少一个处理器执行以实现上述数据调度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。The embodiments of the present application further provide a computer program product, where the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement each process of the above data scheduling method embodiments , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.

本申请实施例还提供一种可读存储介质，所述可读存储介质可以是非瞬态的，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述数据调度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。The embodiments of the present application further provide a readable storage medium, the readable storage medium may be non-transitory, and a program or an instruction is stored on the readable storage medium, and the program or instruction realizes the above data when executed by a processor The various processes of the scheduling method embodiments can achieve the same technical effect, and are not repeated here in order to avoid repetition.

其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述数据调度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。An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above data scheduling method embodiments. Each process can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.

应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

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。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

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，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机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)执行本申请各个实施例所述的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of computer software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

上面结合附图对本申请的实施例进行了描述，但是本申请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申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.