WO2021134663A1

WO2021134663A1 - Network access method and device, network system and communication method, and storage medium

Info

Publication number: WO2021134663A1
Application number: PCT/CN2019/130896
Authority: WO
Inventors: 马川; 郝金平; 晋英豪; 谭巍
Original assignee: 华为技术有限公司
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-08
Also published as: CN114846852B; CN114846852A

Abstract

Provided by the present application are a network access method and device, a network system and communication method, and a storage medium. In the present application, a backhaul node and a management node in an IAB network are connected to each other, among which at least one node can send search information of a cell thereof to the other node, and the node receiving the search information broadcasts the search information. As such, when a new IAB-node accesses the IAB network, the new IAB-node can, once a cell of the other node is searched, determine, according to a broadcast message, one node cell associated with the other node cell. Thus, when a new IAB-node joins an IAB network, said node can select a management node cell and a backhaul node that are matching for access, thereby preventing the occurrence of the problem in which the management node and the backhaul node are not matching.

Description

网络接入方法与设备、网络***与通信方法、存储介质Network access method and equipment, network system and communication method, storage medium

技术领域Technical field

本申请涉及通信技术领域，尤其涉及一种网络接入方法与设备、网络***与通信方法、存储介质。This application relates to the field of communication technology, and in particular to a network access method and device, a network system and communication method, and a storage medium.

背景技术Background technique

接入回程一体化(Integrated access and backhaul，IAB)，是指基站的接入链路和回程链路均采用无线方式进行传输。在IAB网络中，如图1所示，设置有IAB节点(IAB-node)和IAB宿主基站(IAB-donor)，其中，IAB-donor可以为IAB-node和终端(User Equipment，UE)提供接入到核心网的回程出口，而IAB-node也可以为其他IAB-node、UE提供回程中继服务，可将IAB-node和IAB-donor称作回程节点。每个IAB-donor独立管辖自己下辖的IAB-node，但IAB-donor之间缺少协调管理。Integrated access and backhaul (IAB) means that both the access link and the backhaul link of the base station are transmitted wirelessly. In the IAB network, as shown in Figure 1, an IAB node (IAB-node) and an IAB donor base station (IAB-donor) are set up. Among them, the IAB-donor can provide access to the IAB-node and the terminal (User Equipment, UE). Enter the backhaul exit of the core network, and IAB-node can also provide backhaul relay services for other IAB-nodes and UEs. IAB-node and IAB-donor can be called backhaul nodes. Each IAB-donor independently administers its own IAB-node, but there is a lack of coordination and management between IAB-donors.

因此，还可以在IAB网络中增加管理节点(IAB-controller)，这种IAB网络也可称为增强的IAB网络。在该IAB网络中，由管理节点对多个IAB-donor及其下辖IAB-node进行集中管理。当有新的IAB-node要加入这种IAB网络时，IAB-node需要接入一个管理节点和一个回程节点。为了实现管理节点的管理，就要求新的IAB-node所接入的管理节点与回程节点相匹配，也就是，管理节点用于管理该回程节点。换言之，新接的IAB-node作为所接入的回程节点的下辖节点，与该回程节点一起，受到管理节点的集中管理。Therefore, a management node (IAB-controller) can also be added to the IAB network. This IAB network can also be called an enhanced IAB network. In this IAB network, the management node centrally manages multiple IAB-donors and their subordinate IAB-nodes. When a new IAB-node wants to join this IAB network, the IAB-node needs to access a management node and a backhaul node. In order to realize the management of the management node, it is required that the management node accessed by the new IAB-node matches the backhaul node, that is, the management node is used to manage the backhaul node. In other words, the newly connected IAB-node serves as the subordinate node of the connected backhaul node, and together with the backhaul node, it is under the centralized management of the management node.

但是，在现有的IAB网络中，新的IAB-node可以任意接入回程节点与管理节点，这就可能导致管理节点与回程节点不匹配的情况，进而，导致IAB网络难以实现有效的管理和通信，影响通信质量。However, in the existing IAB network, the new IAB-node can arbitrarily access the backhaul node and the management node, which may lead to a mismatch between the management node and the backhaul node, which in turn makes it difficult for the IAB network to achieve effective management and management. Communication affects the quality of communication.

发明内容Summary of the invention

本申请提供一种网络接入方法与设备、网络***与通信方法、存储介质，用以避免新节点加入IAB网络时出现管理节点与回程节点不匹配的情况。This application provides a network access method and equipment, a network system and a communication method, and a storage medium, so as to avoid the mismatch between the management node and the backhaul node when a new node joins the IAB network.

第一方面，本申请提供一种网络接入方法。在该方法中，待接入节点可以在目标网络中搜索第一小区，得到第一节点小区，然后，接收来自第一节点的广播消息，广播消息携带第二节点小区的搜索信息，其中，第一节点与第二节点相互连接；从而，根据搜索信息搜索第二小区，得到第二节点小区，并进而接入第一节点小区与第二节点小区；其中，第一节点小区满足预设的第一接入条件，第二节点小区满足预设的第二接入条件。如此，待接入节点可以接入相互连接的第一节点和第二节点，避免由于二者不匹配导致的通信或管理故障问题。In the first aspect, this application provides a network access method. In this method, the node to be accessed can search for the first cell in the target network to obtain the first node cell, and then receive a broadcast message from the first node. The broadcast message carries the search information of the second node cell. A node and a second node are connected to each other; thus, the second cell is searched according to the search information to obtain the second node cell, and then the first node cell and the second node cell are accessed; wherein, the first node cell satisfies the preset first node cell An access condition: the cell of the second node meets the preset second access condition. In this way, the node to be accessed can access the first node and the second node that are connected to each other, avoiding communication or management failures caused by the mismatch between the two.

其中，本申请实施例中，第一节点与第二节点相互连接，包括如下两种情况：第一节点接入第二节点的小区，或者，第二节点接入第一节点的小区。而第一节点与第二节点之间的通信方式可以包括有线通信或无线通信中的一种或多种。Among them, in the embodiment of the present application, the first node and the second node are connected to each other, including the following two cases: the first node accesses the cell of the second node, or the second node accesses the cell of the first node. The communication mode between the first node and the second node may include one or more of wired communication or wireless communication.

在一种可能的实施例中，搜索信息可以包括但不限于：第二节点小区所在的频段与第二节点小区的小区标识。In a possible embodiment, the search information may include, but is not limited to: the frequency band where the cell of the second node is located and the cell identity of the cell of the second node.

除此之外，搜索信息还可以包括但不限于：第二节点小区的名称、第二节点小区的小区类型、第二节点的基站类型、第二节点的基站标识等。In addition, the search information may also include, but is not limited to: the name of the second node cell, the cell type of the second node cell, the base station type of the second node, the base station identifier of the second node, and so on.

在另一种可能的实施例中，搜索信息由第二节点周期性向第一节点发送。或者，在另一种可能的实施例中，搜索信息由第二节点定时向第一节点发送。除此之外，第二节点还可以在满足预设条件时向第一节点发送搜索信息。也就是，搜索信息是由第二节点主动向第一节点发送，并由第一节点在第一节点小区内广播的。In another possible embodiment, the search information is periodically sent by the second node to the first node. Or, in another possible embodiment, the search information is periodically sent by the second node to the first node. In addition, the second node may also send search information to the first node when the preset condition is met. That is, the search information is actively sent by the second node to the first node, and is broadcast by the first node in the cell of the first node.

在另一种可能的实施例中，搜索信息为第二节点响应于信息获取请求而向第一节点发送的，其中，信息获取请求是由第一节点向第二节点发送的。也就是，搜索信息是由第二节点响应于第一节点的请求而发送的，第一节点在接收到第二节点的反馈后，在第一节点小区内广播的。In another possible embodiment, the search information is sent by the second node to the first node in response to the information acquisition request, where the information acquisition request is sent by the first node to the second node. That is, the search information is sent by the second node in response to the request of the first node, and the first node broadcasts it in the cell of the first node after receiving the feedback from the second node.

在另一种可能的实施例中，广播消息还包括：类型标识，类型标识用于标识：第二节点的基站类型和/或第二节点小区的小区类型。除此之外，类型标识还可以用于标识第一节点自身的基站类型和/或第一节点小区的小区类型。In another possible embodiment, the broadcast message further includes: a type identifier, which is used to identify: the base station type of the second node and/or the cell type of the second node cell. In addition, the type identification may also be used to identify the base station type of the first node itself and/or the cell type of the first node cell.

在另一种可能的实施例中，如图9所示的场景，第一节点为回程节点，第二节点为管理节点。In another possible embodiment, as shown in the scenario shown in FIG. 9, the first node is the backhaul node, and the second node is the management node.

在另一种可能的实施例中，如图10所示的场景，第一节点为管理节点，第二节点为回程节点。In another possible embodiment, in the scenario shown in FIG. 10, the first node is a management node, and the second node is a backhaul node.

本申请的一种实施例中，如图3～图5所示，目标网络可以为接入回传一体化IAB网络，该IAB网络包括一个或多个管理节点，每个管理节点用于管理一个或多个回程节点，其中，回程节点可以包括：已接入目标网络的IAB节点和/或已接入目标网络的IAB宿主基站。此时，网络接入设备为未接入目标网络的IAB节点。In an embodiment of the present application, as shown in Figures 3 to 5, the target network may be an integrated IAB network with access and backhaul. The IAB network includes one or more management nodes, and each management node is used to manage one Or multiple backhaul nodes, where the backhaul node may include: an IAB node that has accessed the target network and/or an IAB donor base station that has accessed the target network. At this time, the network access device is an IAB node that is not connected to the target network.

在另一种可能的实施例中，第一接入条件为第一节点小区不属于被禁止(barred)小区，第一节点小区的无线信号强度达到预设的第一强度阈值；第二接入条件为第二节点小区不属于被禁止小区，第二节点小区的无线信号强度达到预设的第二强度阈值。也就是，待接入节点接入满足预设接入条件的回程节点小区及其关联管理节点小区。In another possible embodiment, the first access condition is that the cell of the first node does not belong to a barred cell, and the wireless signal strength of the cell of the first node reaches a preset first strength threshold; the second access The condition is that the cell of the second node does not belong to a prohibited cell, and the wireless signal strength of the cell of the second node reaches a preset second strength threshold. That is, the node to be accessed accesses the backhaul node cell and its associated management node cell that meet the preset access conditions.

其中，被禁止小区是指该小区不允许用户接入。在LTE和NR中，每个小区的广播消息中可以携带一个指示位，该指示位用于指示本小区是否被禁止。Among them, the barred cell means that the cell does not allow users to access. In LTE and NR, the broadcast message of each cell can carry an indicator bit, which is used to indicate whether the cell is prohibited.

第二方面，本申请提供了一种网络***的通信方法，其中，网络***中包括第一节点和第二节点，第一节点与第二节点相互连接。其中，本申请实施例中，第一节点与第二节点相互连接，包括如下两种情况：第一节点接入第二节点的小区，或者，第二节点接入第一节点的小区。而第一节点与第二节点之间的通信方式可以包括有线通信或无线通信中的一种或多种。In a second aspect, the present application provides a communication method for a network system, wherein the network system includes a first node and a second node, and the first node and the second node are connected to each other. Among them, in the embodiment of the present application, the first node and the second node are connected to each other, including the following two cases: the first node accesses the cell of the second node, or the second node accesses the cell of the first node. The communication mode between the first node and the second node may include one or more of wired communication or wireless communication.

那么，在该网络***中，第二节点向第一节点发送第二节点小区的搜索信息；第一节点接收搜索信息，并在第一节点小区内发送广播消息，广播消息携带搜索信息。在该实施例中，第一节点在自身小区中广播相互连接的第二节点的小区的搜索信息，有利于新节点据此确认第一节点与第二节点的关联关系，并搜索到相应的第二节点小区，进而实现接入，如此，能够保证新节点接入的第一节点与第二节点是匹配的，避免由于二者不匹配导致的通信或管理故障问题。Then, in the network system, the second node sends the search information of the second node cell to the first node; the first node receives the search information, and sends a broadcast message in the first node cell, and the broadcast message carries the search information. In this embodiment, the first node broadcasts the search information of the cell of the second node connected to each other in its own cell, which is beneficial for the new node to confirm the association relationship between the first node and the second node, and search for the corresponding first node. The two-node cell further realizes access. In this way, it can be ensured that the first node and the second node accessed by the new node are matched, and communication or management failure problems caused by the mismatch between the two can be avoided.

本申请的一种实施例中，如图3～图5所示，网络***可以为接入回传一体化IAB网络，该IAB网络包括一个或多个管理节点，每个管理节点用于管理一个或多个回程节点，其中，回程节点可以包括：已接入网络***的IAB节点和/或已接入网络***的IAB宿主基站。此时，网络接入设备为未接入网络***的IAB节点。In an embodiment of the present application, as shown in Figures 3 to 5, the network system may be an integrated backhaul IAB network. The IAB network includes one or more management nodes, and each management node is used to manage one Or multiple backhaul nodes, where the backhaul node may include: an IAB node that has accessed the network system and/or an IAB donor base station that has accessed the network system. At this time, the network access device is an IAB node that is not connected to the network system.

具体而言，IAB宿主基站(IAB-donor)的结构可以参考图5，包括：集中式单元CU、分布式单元DU和通信单元。其中，集中式单元，用于集中管理关联的IAB节点，并与关联的管理节点相连接；分布式单元，用于连接关联的IAB节点；而通信单元可以包括：无线通信单元和/或有线通信单元。Specifically, the structure of the IAB-donor base station (IAB-donor) may refer to FIG. 5, including: a centralized unit CU, a distributed unit DU, and a communication unit. Among them, the centralized unit is used to centrally manage the associated IAB nodes and is connected to the associated management node; the distributed unit is used to connect the associated IAB nodes; and the communication unit may include: a wireless communication unit and/or wired communication unit.

管理节点(IAB-controller)的结构也可以参考图5，包括：无线通信单元；或者，管理节点包括无线通信单元与有线通信单元。The structure of the management node (IAB-controller) may also refer to FIG. 5, which includes: a wireless communication unit; or, the management node includes a wireless communication unit and a wired communication unit.

第三方面，本申请提供一种网络接入设备，包括：搜索模块、接收模块与接入模块；其中，搜索模块，用于在目标网络中搜索第一小区，得到第一节点小区；接收模块，用于接收来自第一节点的广播消息，广播消息携带第二节点小区的搜索信息，其中，第一节点与第二节点相互连接；搜索模块，还用于根据搜索信息搜索第二小区，得到第二节点小区；接入模块，用于接入第一节点小区与第二节点小区；其中，第一节点小区满足预设的第一接入条件，第二节点小区满足预设的第二接入条件。如此，网络接入设备可以接入相互连接的第一节点和第二节点，避免由于二者不匹配导致的通信或管理故障问题。In a third aspect, the present application provides a network access device, including: a search module, a receiving module, and an access module; wherein the search module is used to search for the first cell in the target network to obtain the first node cell; the receiving module , Used to receive the broadcast message from the first node, the broadcast message carries the search information of the cell of the second node, where the first node and the second node are connected to each other; the search module is also used to search for the second cell according to the search information to obtain The second node cell; the access module is used to access the first node cell and the second node cell; wherein the first node cell meets the preset first access condition, and the second node cell meets the preset second access condition Entry conditions. In this way, the network access device can access the first node and the second node that are connected to each other, avoiding communication or management failures caused by a mismatch between the two.

在另一种可能的实施例中，第一接入条件为第一节点小区不属于被禁止小区，第一节点小区的无线信号强度达到预设的第一强度阈值；第二接入条件为第二节点小区不属于被禁止小区，第二节点小区的无线信号强度达到预设的第二强度阈值。也就是，待接入节点接入满足预设接入条件的回程节点小区及其关联管理节点小区。其中，被禁止小区是指该小区不允许用户接入。在LTE和NR中，每个小区的广播消息中可以携带一个指示位，该指示位用于指示本小区是否被禁止。In another possible embodiment, the first access condition is that the cell of the first node does not belong to a barred cell, and the wireless signal strength of the cell of the first node reaches a preset first strength threshold; the second access condition is The cell of the second node does not belong to a prohibited cell, and the wireless signal strength of the cell of the second node reaches the preset second strength threshold. That is, the node to be accessed accesses the backhaul node cell and its associated management node cell that meet the preset access conditions. Among them, the barred cell means that the cell does not allow users to access. In LTE and NR, the broadcast message of each cell can carry an indicator bit, which is used to indicate whether the cell is prohibited.

第四方面，本申请提供一种网络接入设备，包括：存储器、处理器以及计算机程序；其中，计算机程序存储在存储器中，并被配置为由处理器执行以实现如上述第一方面任一项所述的方法。In a fourth aspect, the present application provides a network access device, including: a memory, a processor, and a computer program; wherein the computer program is stored in the memory and is configured to be executed by the processor to implement any one of the above-mentioned first aspects. The method described in the item.

第五方面，本申请提供一种网络***，包括：第一节点和第二节点，第一节点与第二节点相互连接。其中，本申请实施例中，第一节点与第二节点相互连接，包括如下两种情况：第一节点接入第二节点的小区，或者，第二节点接入第一节点的小区。而第一节点与第二节点之间的通信方式可以包括有线通信或无线通信中的一种或多种。In a fifth aspect, the present application provides a network system, including: a first node and a second node, where the first node and the second node are connected to each other. Among them, in the embodiment of the present application, the first node and the second node are connected to each other, including the following two cases: the first node accesses the cell of the second node, or the second node accesses the cell of the first node. The communication mode between the first node and the second node may include one or more of wired communication or wireless communication.

具体的，第二节点，用于向第一节点发送第二节点小区的搜索信息；第一节点，用于接收搜索信息；第一节点，还用于在第一节点小区内发送广播消息，广播消息携带搜索信息。在该实施例中，第一节点在自身小区中广播相互连接的第二节点的小区的搜索信息，有利于新节点据此确认第一节点与第二节点的关联关系，并搜索到相应的第二节点小区，进而实现接入，如此，能够保证新节点接入的第一节点与第二节点是匹配的，避免由于二者不匹配导致的通信或管理故障问题。Specifically, the second node is used to send search information of the second node cell to the first node; the first node is used to receive search information; the first node is also used to send broadcast messages in the first node cell, and broadcast The message carries search information. In this embodiment, the first node broadcasts the search information of the cell of the second node connected to each other in its own cell, which is beneficial for the new node to confirm the association relationship between the first node and the second node, and search for the corresponding first node. The two-node cell further realizes access. In this way, it can be ensured that the first node and the second node accessed by the new node are matched, and communication or management failure problems caused by the mismatch between the two can be avoided.

第六方面，本申请提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行如第一方面或第二方面任一项所述的方法。In a sixth aspect, the present application provides a computer-readable storage medium, which stores a computer program, which when run on a computer, causes the computer to execute the same as described in any one of the first aspect or the second aspect. The method described.

第七方面，本申请提供一种计算机程序，当所述计算机程序被计算机执行时，用于执行第一方面或第二方面任一项所述的方法。In a seventh aspect, the present application provides a computer program, when the computer program is executed by a computer, it is used to execute the method described in any one of the first aspect or the second aspect.

在一种可能的设计中，第七方面中的程序可以全部或者部分存储在与处理器封装在一起的存储介质上，也可以部分或者全部存储在不与处理器封装在一起的存储器上。In a possible design, the program in the seventh aspect may be stored in whole or in part on a storage medium packaged with the processor, or may be stored in part or in a memory not packaged with the processor.

本申请实施例提供了一种网络接入方法与设备、网络***与通信方法、存储介质。在该方案中，目标网络中的第一节点与第二节点相互连接，且第一节点的广播消息中可以携带第二节点小区的搜索信息。那么，当有新的节点，也即待接入节点，接入该目标网络时，可以先搜索第一小区，并搜索到第一节点小区，从而，可以基于第一节点的广播消息，搜索到第二节点小区，进而，若二者均满足接入条件，待接入节点即可接入第一节点小区与第二节点小区。这保证了待接入节点接入的第一节点和第二节点是相互连接的，那么，当目标网络为包括管理节点的IAB网络时，也能够保证新的IAB-node接入IAB网络时，接入相互连接的回程节点和管理节点中，解决了新节点接入IAB网络时管理节点与回程节点不匹配的问题，以及进而导致的管理和通信故障问题，提高通信质量。The embodiments of the present application provide a network access method and device, a network system and a communication method, and a storage medium. In this solution, the first node and the second node in the target network are connected to each other, and the broadcast message of the first node can carry the search information of the cell of the second node. Then, when there is a new node, that is, the node to be accessed, when accessing the target network, the first cell can be searched first, and the cell of the first node can be searched. Therefore, based on the broadcast message of the first node, the search can be found The second node cell, and further, if both meet the access conditions, the node to be accessed can access the first node cell and the second node cell. This ensures that the first node and the second node to be accessed by the access node are connected to each other. Then, when the target network is an IAB network including a management node, it can also be ensured that when a new IAB-node is connected to the IAB network, Access to interconnected backhaul nodes and management nodes solves the problem of mismatch between the management node and the backhaul node when a new node accesses the IAB network, as well as the management and communication failures that result, and improves communication quality.

附图说明Description of the drawings

图1为现有技术中的一种IAB网络的网络架构示意图；Figure 1 is a schematic diagram of a network architecture of an IAB network in the prior art;

图2为现有技术中的另一种IAB网络的网络架构示意图；Figure 2 is a schematic diagram of a network architecture of another IAB network in the prior art;

图3为本申请实施例提供的一种网络***的架构示意图；FIG. 3 is a schematic diagram of the architecture of a network system provided by an embodiment of this application;

图4为本申请实施例提供的另一种网络***的架构示意图；FIG. 4 is a schematic diagram of the architecture of another network system provided by an embodiment of this application;

图5为本申请实施例提供的网络***中各基站的网元架构示意图；5 is a schematic diagram of the network element architecture of each base station in the network system provided by an embodiment of the application;

图6为本申请实施例提供的一种网络***通信方法的信息交互示意图；FIG. 6 is a schematic diagram of information interaction of a network system communication method provided by an embodiment of this application;

图7为本申请实施例提供的一种网络接入方法的流程示意图；FIG. 7 is a schematic flowchart of a network access method provided by an embodiment of this application;

图8为本申请实施例中关联基站和关联小区的示意图；FIG. 8 is a schematic diagram of an associated base station and an associated cell in an embodiment of the application;

图9为本申请实施例提供的另一种网络接入方法的流程示意图；FIG. 9 is a schematic flowchart of another network access method provided by an embodiment of this application;

图10为本申请实施例提供的另一种网络接入方法的流程示意图；FIG. 10 is a schematic flowchart of another network access method provided by an embodiment of this application;

图11为本申请实施例提供的一种网络接入设备的功能方块图；FIG. 11 is a functional block diagram of a network access device provided by an embodiment of this application;

图12为本申请实施例提供的一种网络接入设备的实体结构示意图；FIG. 12 is a schematic diagram of the physical structure of a network access device provided by an embodiment of this application;

图13为本申请实施例提供的另一种网络***的架构示意图。FIG. 13 is a schematic structural diagram of another network system provided by an embodiment of this application.

具体实施方式Detailed ways

以下，结合附图对本实施例的实施方式进行详细描述。其中，在本申请实施例的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，在本申请实施例的描述中，“多个”是指两个或多于两个。Hereinafter, the implementation of this embodiment will be described in detail with reference to the accompanying drawings. Among them, in the description of the embodiments of the present application, unless otherwise specified, "/" means or, for example, A/B can mean A or B; "and/or" in this document is only a description of related objects The association relationship of indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: A alone exists, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" refers to two or more than two.

本申请实施例应用于增强的IAB网络(也即，设置有管理节点的IAB网络)，具体应用于新的IAB-node接入增强的IAB网络的场景。应当理解，新的回程节点，是指尚未接入IAB网络的节点。增强的IAB网络，为设置有管理节点的IAB网络。The embodiments of the present application are applied to an enhanced IAB network (that is, an IAB network provided with a management node), and specifically applied to a scenario where a new IAB-node is connected to the enhanced IAB network. It should be understood that the new backhaul node refers to a node that has not yet connected to the IAB network. The enhanced IAB network is an IAB network with management nodes.

IAB技术可以取代传统的光纤回程链路，从而避免大量的光纤部署，因此可以提升网络部署的灵活性、降低网络部署成本。IAB technology can replace the traditional optical fiber backhaul link, thereby avoiding a large number of optical fiber deployment, so it can improve the flexibility of network deployment and reduce the cost of network deployment.

首先，为便于理解增强的IAB网络，本申请首先结合图1和图2，对现有的IAB网络进行说明。图1和图2均为现有技术中的IAB网络的网络架构示意图。First, in order to facilitate the understanding of the enhanced IAB network, this application first describes the existing IAB network with reference to FIG. 1 and FIG. 2. Fig. 1 and Fig. 2 are both schematic diagrams of the network architecture of the IAB network in the prior art.

如图1所示，在IAB网络中包含两种节点，分别为：IAB-donor(图1中表示为宿主基站)和IAB-node(图1中的节点1和节点2)。As shown in Figure 1, there are two types of nodes in the IAB network: IAB-donor (represented as the donor base station in Figure 1) and IAB-node (node 1 and node 2 in Figure 1).

其中，IAB-donor可以直接连接到核心网，并为UE和IAB-node提供接入服务，并为IAB-node提供到核心网的回程出口。IAB-donor通过逻辑接口接入核心网，例如，NG接口。Among them, IAB-donor can be directly connected to the core network, and provide access services for UE and IAB-node, and provide IAB-node with a backhaul exit to the core network. IAB-donor connects to the core network through logical interfaces, such as NG interfaces.

其中，IAB-node不直接与核心网相连接，而是通过单跳或多跳的方式，无线回传连接到IAB-donor，从而，通过IAB-donor来回传至核心网。例如，IAB-node1可以通过单跳无线回传至IAB-donor，而IAB-node2则通过多跳无线回传至IAB-donor。以及，IAB-node还可以为其他的IAB-node提供回程中继服务。例如，IAB-node1可以为IAB-node2提供回程中继服务。Among them, the IAB-node is not directly connected to the core network, but is connected to the IAB-donor through a single-hop or multi-hop wireless backhaul, and thus back and forth to the core network through the IAB-donor. For example, IAB-node1 can be sent back to IAB-donor via single-hop wireless, while IAB-node2 can be sent back to IAB-donor via multi-hop wireless. And, IAB-node can also provide backhaul relay services for other IAB-nodes. For example, IAB-node1 can provide backhaul relay service for IAB-node2.

此外，在IAB网络中，IAB-donor和IAB-node均为网络侧设备，例如，无线保真(Wireless-Fidelity，WIFI)的接入点AP、下一代通信的基站，如5G的gNB或小站、微站，TRP，还可以是中继站、接入点、车载设备、可穿戴设备等。在本实施例中，不同通信制式的通信***中的基站不同。为了区别起见，将4G通信***的基站称为LTE eNB，5G通信***的基站称为NR gNB，既支持4G通信***又支持5G通信***的基站称为eLTE eNB,这些名称仅为了方便区别，并不具有限制意义。In addition, in the IAB network, IAB-donor and IAB-node are both network-side devices, such as wireless-fidelity (Wireless-Fidelity, WIFI) access points AP, next-generation communication base stations, such as 5G gNB or small Stations, micro-stations, TRP, can also be relay stations, access points, vehicle-mounted devices, wearable devices, etc. In this embodiment, base stations in communication systems of different communication standards are different. For the sake of distinction, the base station of the 4G communication system is called LTE eNB, the base station of the 5G communication system is called NR gNB, and the base station that supports both 4G communication system and 5G communication system is called eLTE eNB. These names are only for convenience. It has no restrictive meaning.

因此，在IAB网络中，这些基站，如图1所示的IAB-donor和IAB-node，都可以为UE提供接入服务。从而，UE通过所接入的基站来接入核心网。Therefore, in the IAB network, these base stations, as shown in Figure 1 IAB-donor and IAB-node, can provide access services for the UE. Therefore, the UE accesses the core network through the accessed base station.

具体而言，图1还进一步示出了各基站的架构方式。如图1所示，IAB-donor采用分离式架构，包括：集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)。而IAB-node包括：移动终端(mobile termination，MT)和DU。Specifically, Figure 1 further shows the architecture of each base station. As shown in Figure 1, IAB-donor adopts a separated architecture, including: a centralized unit (CU) and a distributed unit (DU). And IAB-node includes: mobile terminal (mobile termination, MT) and DU.

其中，IAB-donor中的CU可以与下辖的IAB-node的DU相连接，用于集中管理各IAB-node。具体而言，CU与DU之间通过逻辑接口进行连接，如F1接口。此外，CU还用于接入核心网。Among them, the CU in the IAB-donor can be connected to the DU of the IAB-node under its jurisdiction for centralized management of each IAB-node. Specifically, the CU and DU are connected through a logical interface, such as an F1 interface. In addition, the CU is also used to access the core network.

而各基站中的DU则可用于连接下游IAB-node或UE，用于为UE或下游IAB-node提供接入服务或回程中继服务。具体的，对于任意基站而言，该基站的DU与IAB-node的MT相连接，该基站的DU亦可以与UE相连接。连接方式可以为用户设备接口，如图1所示的NR Uu接口。The DU in each base station can be used to connect to the downstream IAB-node or UE, and is used to provide access service or backhaul relay service for the UE or downstream IAB-node. Specifically, for any base station, the DU of the base station is connected to the MT of the IAB-node, and the DU of the base station can also be connected to the UE. The connection mode can be a user equipment interface, such as the NR Uu interface shown in Figure 1.

MT用于连接上游基站，也即，上游的IAB-node或IAB-donor。也就是，MT一般与上游基站的DU相连接。MT is used to connect upstream base stations, that is, upstream IAB-node or IAB-donor. That is, the MT is generally connected to the DU of the upstream base station.

此外，在IAB网络中，IAB-node和IAB-donor的数目均可以为多个。示例性的，可以参考图2，在图2所示的IAB网络中，包括两个IAB-donor，分别为：IAB-donor1和IAB-donor2。其中，IAB-donor1与IAB-node1～IAB-node3连接，为其提供到核心网的回程出口。IAB-donor2与IAB-node4、IAB-node5连接，为其提供到核心网的回程出口。In addition, in the IAB network, there can be multiple IAB-nodes and IAB-donors. Exemplarily, refer to FIG. 2. In the IAB network shown in FIG. 2, two IAB-donors are included, namely: IAB-donor1 and IAB-donor2. Among them, IAB-donor1 is connected with IAB-node1～IAB-node3 to provide a backhaul exit to the core network. IAB-donor2 is connected with IAB-node4 and IAB-node5 to provide a backhaul exit to the core network.

在如图1或如图2所示的IAB网络中，IAB-donor和IAB-node都可以为其他节点提供回程服务，可将二者均称为回程节点。In the IAB network as shown in Figure 1 or Figure 2, both IAB-donor and IAB-node can provide backhaul services for other nodes, and both can be called backhaul nodes.

在IAB网络中，当有新的IAB-node(也即，未接入该IAB网络的具备IAB功能的node)需要加入该网络时，需要选择并接入一个回程节点小区，并与该回程节点小区建立回程链路，即可接入该回程节点和该IAB网络。其中，每个回程节点可以对应于一个或多个小区，为便于说明，将其称为回程节点小区。In the IAB network, when a new IAB-node (that is, a node with IAB function that is not connected to the IAB network) needs to join the network, it is necessary to select and access a backhaul node cell and communicate with the backhaul node The cell establishes a backhaul link to access the backhaul node and the IAB network. Among them, each backhaul node may correspond to one or more cells, which is referred to as a backhaul node cell for ease of description.

例如，当有新的IAB-node加入图2所示IAB网络时，IAB-donor1、IAB-donor2、IAB-node1～IAB-node5均为回程节点，新的IAB-node可以在这些回程节点中，选择一个回程节点小区进行接入。例如，若新的IAB-node接入IAB-donor1，如此，IAB-donor1可以直接为IAB-node1、IAB-node3、该新的IAB-node提供到核心网的回程出口。又例如，若新的IAB-node接入IAB-node5，如此，该新的IAB-node可以通过IAB-node5，经多跳回传至IAB-donor2，由IAB-donor2为该新的IAB-node提供到核心网的回程出口。不作穷举。For example, when a new IAB-node joins the IAB network shown in Figure 2, IAB-donor1, IAB-donor2, IAB-node1～IAB-node5 are all backhaul nodes, and the new IAB-node can be in these backhaul nodes, Select a backhaul node cell for access. For example, if a new IAB-node is connected to IAB-donor1, IAB-donor1 can directly provide IAB-node1, IAB-node3, and the new IAB-node with a backhaul exit to the core network. For another example, if a new IAB-node is connected to IAB-node5, then the new IAB-node can be sent back to IAB-donor2 through IAB-node5 through multiple hops, and IAB-donor2 is the new IAB-node Provide a backhaul exit to the core network. Do not exhaustively.

在如图1或图2所示的IAB网络中，每个IAB-donor可独立管理自己下辖的IAB-node。例如，图2中，IAB-donor1可独立管理下辖的IAB-node1～IAB-node3；IAB-donor2可独立管理下辖的IAB-node4、IAB-node5。但是，IAB-donor之间缺少协调，难以实现跨IAB-donor的IAB-node协同管理。In the IAB network shown in Figure 1 or Figure 2, each IAB-donor can independently manage its own IAB-node. For example, in Figure 2, IAB-donor1 can independently manage subordinate IAB-node1 to IAB-node3; IAB-donor2 can independently manage subordinate IAB-node4 and IAB-node5. However, the lack of coordination between IAB-donors makes it difficult to achieve cross-IAB-donor IAB-node collaborative management.

在前述IAB网络的基础上，还可以在IAB网络中增加管理节点(IAB-controller)，实际场景中，这种IAB网络，也可称为增强的IAB网络。On the basis of the aforementioned IAB network, a management node (IAB-controller) can also be added to the IAB network. In actual scenarios, this IAB network can also be called an enhanced IAB network.

在增强的IAB网络中，由IAB-controller对多个IAB-donor及IAB-donor下辖IAB-node进行集中管理，那么，通过IAB-controller的集中控制，可以实现跨IAB-donor的IAB-node协同管理。In the enhanced IAB network, IAB-controller centrally manages multiple IAB-donors and IAB-nodes under IAB-donor. Then, through the centralized control of IAB-controller, cross-IAB-donor IAB-nodes can be realized. Collaborative management.

具体而言，IAB-controller承担了集中管理功能，并且，还可用于承担一些控制面(control plane，CP)功能。而IAB-donor承担数据面(user plane，UP)功能和其余的控制面(CP)功能。换言之，增强的IAB网络，就是将每个IAB-donor的一部分CP功能(例如拓扑和路由管理功能)抽取出来，放在IAB-controller中进行集中控制，从而可以实现跨IAB-donor的IAB-node协同管理。Specifically, the IAB-controller undertakes centralized management functions, and can also be used to undertake some control plane (CP) functions. The IAB-donor undertakes the data plane (user plane, UP) function and the rest of the control plane (CP) function. In other words, the enhanced IAB network is to extract part of the CP functions (such as topology and routing management functions) of each IAB-donor and place them in the IAB-controller for centralized control, so that IAB-nodes across IAB-donors can be realized Collaborative management.

在一种可能的实施例中，可以将IAB-controller部署在较低的频段，以保证IAB-controller有较大的覆盖范围。In a possible embodiment, the IAB-controller can be deployed in a lower frequency band to ensure that the IAB-controller has a larger coverage area.

示例性的，图3为本申请实施例提供的另一种网络***的架构示意图。如图3所示，IAB-controller为管理节点，用于对IAB-donor1～IAB-donor3及其下辖IAB-node进行集中管理，而每个IAB-donor则可用于管理一个或多个IAB-node。各IAB-donor所管辖的IAB-node的数目可以相同，也可以不同。Exemplarily, FIG. 3 is a schematic structural diagram of another network system provided by an embodiment of the application. As shown in Figure 3, IAB-controller is the management node, used to centrally manage IAB-donor1～IAB-donor3 and its subordinate IAB-nodes, and each IAB-donor can be used to manage one or more IAB- node. The number of IAB-nodes managed by each IAB-donor can be the same or different.

在一个增强的IAB网络中，可以包括一个或多个IAB-controller，每个IAB-controller可以用于集中管理多个IAB-donor及其下辖IAB-node。In an enhanced IAB network, one or more IAB-controllers can be included, and each IAB-controller can be used to centrally manage multiple IAB-donors and their subordinate IAB-nodes.

示例性的，图4为本申请实施例提供的另一种网络***的架构示意图。如图4所示，在该IAB网络中，包括IAB-controller1和IAB-controller2，其中，IAB-controller1用于集中管理IAB-donor1、IAB-donor2及其下辖的IAB-node1～IAB-node3，而IAB-controller2用于集中管理IAB-donor3及其下辖的IAB-node4。Exemplarily, FIG. 4 is a schematic structural diagram of another network system provided by an embodiment of the application. As shown in Figure 4, the IAB network includes IAB-controller1 and IAB-controller2, where IAB-controller1 is used to centrally manage IAB-donor1, IAB-donor2 and its subordinate IAB-node1~IAB-node3, And IAB-controller2 is used to centrally manage IAB-donor3 and IAB-node4 under its jurisdiction.

在本申请实施例所提供的增强的IAB网络中，IAB-controller至少可以与回程节点进行通信。In the enhanced IAB network provided by the embodiments of the present application, the IAB-controller can at least communicate with the backhaul node.

具体而言，IAB-controller可以具备无线广播能力。换言之，IAB-controller可以包括无线通信单元。如此，IAB-controller可以与各回程节点之间通过无线通信方式进行通信。其中，无线通信单元可以包括但不限于空口收发模块。Specifically, IAB-controller can have wireless broadcasting capabilities. In other words, the IAB-controller may include a wireless communication unit. In this way, the IAB-controller can communicate with each backhaul node through wireless communication. Among them, the wireless communication unit may include, but is not limited to, an air interface transceiver module.

示例性的另一种实施例中，IAB-controller可以包括无线通信单元与有线通信单元。如此，IAB-controller可以与各回程节点之间通过无线通信和/或有线通信的方式进行通信。In another exemplary embodiment, the IAB-controller may include a wireless communication unit and a wired communication unit. In this way, the IAB-controller can communicate with each backhaul node through wireless communication and/or wired communication.

例如，在一种IAB网络中，IAB-donor与IAB-controller之间的接入方式可以为：空口接入或者非空口接入。此时，IAB-donor除包括DU和CU之外，还可以包括通信单元，通信单元可以包括：无线通信单元和/或有线通信单元。示例性的，当通信单元为无线通信单元时，例如MT，IAB-donor可以通过空口通信的方式接入IAB-controller；当通信单元为有线接口时，例如光纤接口，IAB-donor可以通过有线方式接入IAB-controller。For example, in an IAB network, the access mode between the IAB-donor and the IAB-controller can be: air interface access or non-air interface access. At this time, in addition to the DU and the CU, the IAB-donor may also include a communication unit, and the communication unit may include a wireless communication unit and/or a wired communication unit. Exemplarily, when the communication unit is a wireless communication unit, such as MT, the IAB-donor can be connected to the IAB-controller through air interface communication; when the communication unit is a wired interface, such as an optical fiber interface, the IAB-donor can be wired Access IAB-controller.

示例性的，图5为本申请实施例提供的网络***中各基站的网元架构示意图。如图5所示，IAB-node仍包括DU和MT；IAB-donor可以包括DU和CU，除此之外，还可以包括MT与有线接口中的至少一种。如此，IAB-node仍可以通过MT接入上游IAB-node或IAB-donor。而IAB-controller可以包括空口收发模块，IAB-controller通过无线通信方式与回程节点通信。此外，IAB-controller还可以包括有线接口。图5中，IAB-controller的有线接口为可选模块，以虚线框标识。而IAB-donor中的MT(移动终端)与有线接口为二者至少择其一的选择，也用虚线框进行标识。Exemplarily, FIG. 5 is a schematic diagram of the network element architecture of each base station in the network system provided by an embodiment of the application. As shown in Figure 5, IAB-node still includes DU and MT; IAB-donor may include DU and CU, in addition to this, it may also include at least one of MT and wired interface. In this way, IAB-node can still access upstream IAB-node or IAB-donor through MT. The IAB-controller may include an air interface transceiver module, and the IAB-controller communicates with the backhaul node through wireless communication. In addition, the IAB-controller can also include a wired interface. In Figure 5, the wired interface of the IAB-controller is an optional module, which is marked by a dashed box. The MT (mobile terminal) and wired interface in IAB-donor are at least one of the two options, and are also marked with a dashed frame.

在增强的IAB网络中，IAB-donor需要接入一个管理节点。因此，当有新的IAB-donor接入该IAB网络时，只需要接入一个管理节点小区，并建立回程链路即可，对此不作详述。In the enhanced IAB network, IAB-donor needs to access a management node. Therefore, when a new IAB-donor accesses the IAB network, it only needs to access a management node cell and establish a backhaul link, which will not be described in detail.

在增强的IAB网络中，IAB-node需要接入一个回程节点与一个管理节点。以图4所示场景为例，在该场景中，IAB-node1接入IAB-node2(回程节点)和IAB-controller1(管理节点)；IAB-node4接入IAB-donor3(回程节点)和IAB-controller2(管理节点)。In the enhanced IAB network, IAB-node needs to access a backhaul node and a management node. Take the scenario shown in Figure 4 as an example. In this scenario, IAB-node1 is connected to IAB-node2 (backhaul node) and IAB-controller1 (management node); IAB-node4 is connected to IAB-donor3 (backhaul node) and IAB- controller2 (management node).

那么，当有新的IAB-node需要加入IAB网络时，也需要接入一个回程节点与一个管理节点。此时，新的IAB-node可以分别搜索回程节点小区和管理节点小区，当二者满足各自的接入条件时，新的IAB-node即可接入搜索到的回程节点小区和管理节点小区。Then, when a new IAB-node needs to join the IAB network, it also needs to access a backhaul node and a management node. At this time, the new IAB-node can search for the backhaul node cell and the management node cell respectively. When the two meet their respective access conditions, the new IAB-node can access the searched backhaul node cell and the management node cell.

这很有可能会存在新的IAB-node接入的回程节点与管理节点不匹配的问题。仍以图4场景为例，新的IAB-node可以接入IAB-donor2与IAB-controller2，此时，IAB-donor2与IAB-controller2之间不匹配，IAB-donor2实际受到IAB-controller1的管理，那么，新的IAB-node可能同时受到IAB-controller1和IAB-controller2的管理，管理方式混乱，很容易造成通信故障。换言之，若新的IAB-node所接入的IAB-donor2与IAB-controller2之间不匹配，就会导致增强的IAB网络难以实现有效的管理和通信，影响通信质量。It is very likely that there will be a mismatch between the backhaul node connected to the new IAB-node and the management node. Still taking the scenario in Figure 4 as an example, the new IAB-node can be connected to IAB-donor2 and IAB-controller2. At this time, there is no match between IAB-donor2 and IAB-controller2, and IAB-donor2 is actually managed by IAB-controller1. Then, the new IAB-node may be managed by IAB-controller1 and IAB-controller2 at the same time, the management method is chaotic, and it is easy to cause communication failures. In other words, if there is a mismatch between the IAB-donor2 and IAB-controller2 that the new IAB-node accesses, it will be difficult for the enhanced IAB network to achieve effective management and communication, which will affect the quality of communication.

本申请实施例中，在增强的IAB网络中，在相互连接的管理节点与回程节点之间，管理节点可以向回程节点发送管理节点小区的搜索信息，而回程节点在自己的回程节点小区中广播该搜索信息。In the embodiment of the present application, in the enhanced IAB network, between the management node and the backhaul node that are connected to each other, the management node can send the search information of the management node cell to the backhaul node, and the backhaul node broadcasts in its own backhaul node cell The search information.

如此，当有新的IAB-node接入该IAB网络时，新的IAB-node可以在搜索到回程节点小区后，可以基于广播消息得到管理节点小区的搜索信息，进而，可以搜索到管理节点小区。如此，新的IAB-node接入的回程节点与管理节点是匹配的。In this way, when a new IAB-node accesses the IAB network, after searching for the backhaul node cell, the new IAB-node can obtain the search information of the management node cell based on the broadcast message, and furthermore, can search for the management node cell . In this way, the backhaul node that the new IAB-node accesses matches the management node.

反之亦可，也就是，回程节点亦可向管理节点发送回程节点小区的搜索信息，由管理节点在管理节点小区内广播该搜索信息。后续详述。The reverse is also possible, that is, the backhaul node can also send the search information of the backhaul node cell to the management node, and the management node broadcasts the search information in the management node cell. Follow-up details.

以下，对本申请实施例中IAB网络的通信方法进行说明。The following describes the communication method of the IAB network in the embodiment of the present application.

示例性的，图6示出了本申请实施例提供的一种网络***通信方法的信息交互示意图。该方法应用于包括第一节点和第二节点的网络***中，第一节点和第二节点相互连接。Exemplarily, FIG. 6 shows a schematic diagram of information interaction of a network system communication method provided by an embodiment of the present application. The method is applied to a network system including a first node and a second node, and the first node and the second node are connected to each other.

应当理解，本申请实施例所针对的目标网络，可以为前述图3～图5中任意一种可能的实施例所述的增强的IAB网络。也就是，IAB网络中包括一个或多个管理节点，每个管理节点用于管理一个或多个回程节点，而回程节点包括：已接入IAB网络的IAB-node和/或已接入IAB网络的IAB-donor。It should be understood that the target network targeted by the embodiment of the present application may be the enhanced IAB network described in any one of the possible embodiments in Figs. 3 to 5 above. That is, the IAB network includes one or more management nodes, and each management node is used to manage one or more backhaul nodes, and the backhaul nodes include: IAB-nodes that have been connected to the IAB network and/or IAB-nodes that have been connected to the IAB network IAB-donor.

此时，第一节点与第二节点可以有如下设计：At this time, the first node and the second node can have the following designs:

在一可能的实施例中，第一节点可以为回程节点(IAB-node或者IAB-donor)，第二节点可以为管理节点(IAB-controller)。In a possible embodiment, the first node may be a backhaul node (IAB-node or IAB-donor), and the second node may be a management node (IAB-controller).

在另一可能的实施例中，第一节点可以为管理节点(IAB-controller)，第二节点可以为回程节点(IAB-node或者IAB-donor)。In another possible embodiment, the first node may be a management node (IAB-controller), and the second node may be a backhaul node (IAB-node or IAB-donor).

如此，第一节点与第二节点之间相互连接，第一节点可以被第二节点管理，或者，第一节点受到第二节点的管理。换言之，第一节点与第二节点相互连接，包括如下两种情况：第一节点接入第二节点的小区，或者，第二节点接入第一节点的小区。不再赘述。In this way, the first node and the second node are connected to each other, and the first node may be managed by the second node, or the first node may be managed by the second node. In other words, the first node and the second node are connected to each other, including the following two cases: the first node accesses the cell of the second node, or the second node accesses the cell of the first node. No longer.

此外，在包含管理节点的IAB网络中，第一节点与第二节点之间的通信方式可以包括有线通信或无线通信中的一种或多种。后续结合第一节点与第二节点的具体设计进行说明。In addition, in the IAB network including the management node, the communication mode between the first node and the second node may include one or more of wired communication or wireless communication. The specific design of the first node and the second node will be described later.

如图6所示，该网络***的通信方法可以包括如下步骤：As shown in Fig. 6, the communication method of the network system may include the following steps:

S602，第二节点向第一节点发送第二节点小区的搜索信息。S602: The second node sends the search information of the cell of the second node to the first node.

第二节点小区即为第二节点对应的小区。每个节点可以对应一个或多个小区，本申请实施例对其数目为特别限制。The cell of the second node is the cell corresponding to the second node. Each node may correspond to one or more cells, and the number of the cells is specifically limited in the embodiment of the present application.

后续对该步骤的触发方式及执行方式进行说明。The trigger mode and execution mode of this step will be described later.

S604，第一节点接收搜索信息。S604: The first node receives search information.

S608，第一节点在第一节点小区内发送广播消息，广播消息中携带该搜索信息。S608: The first node sends a broadcast message in the cell of the first node, and the broadcast message carries the search information.

换言之，回程节点可以向管理节点发送回程节点小区的搜索信息，管理节点在管理节点的小区内广播该搜索信息。或者，管理节点可以向回程节点发送管理节点小区的搜索信息，回程节点在回程节点的小区内广播该搜索信息。In other words, the backhaul node may send the search information of the backhaul node cell to the management node, and the management node broadcasts the search information in the management node's cell. Alternatively, the management node may send the search information of the management node cell to the backhaul node, and the backhaul node broadcasts the search information in the backhaul node's cell.

当有新的IAB-node接入该IAB网络时，第一节点广播的搜索信息有利于新的IAB-node节点，确定第一节点与第二节点之间的相互连接关系，有利于其能接入相互匹配的管理节点和回程节点。后续对该过程详述。When a new IAB-node connects to the IAB network, the search information broadcast by the first node is beneficial to the new IAB-node node, determines the interconnection relationship between the first node and the second node, and facilitates its accessibility. Into the management node and backhaul node that match each other. The process will be described in detail later.

本申请实施例中，小区的搜索信息用于辅助搜索或定位到该小区。具体而言，搜索信息可以包括但不限于：第二节点小区所在的频段，以及，第二节点小区的小区标识。In the embodiment of the present application, the search information of the cell is used to assist in searching or positioning the cell. Specifically, the search information may include, but is not limited to: the frequency band where the second node cell is located, and the cell identifier of the second node cell.

除此之外，搜索信息还可以包括但不限于：第二节点小区的名称、第二节点小区的小区类型、第二节点的基站类型、第二节点的基站标识等，本申请实施例对此无特别限定。In addition, the search information may also include, but is not limited to: the name of the cell of the second node, the cell type of the cell of the second node, the base station type of the second node, the base station identifier of the second node, etc. There is no particular limitation.

其中，第二节点小区的小区类型与第二节点的基站类型相关联。更进一步的，对于任意一个基站而言，其基站类型与小区类型可以是一一对应的。而基站的类型则与基站在网络***中的角色(或作用)与接入情况相关。The cell type of the cell of the second node is associated with the base station type of the second node. Furthermore, for any base station, its base station type and cell type may have a one-to-one correspondence. The type of base station is related to the role (or role) of the base station in the network system and the access situation.

示例性的一种实施例中，可以将基站划分为以下4个类型：类型1～类型4。其中，类型1基站为IAB网络中的管理节点(IAB-controller)，类型2基站为已经接入 IAB-controller的回程节点(IAB-donor或者IAB-node)，类型3基站为未接入IAB-controller的IAB-donor或者IAB-node，类型4基站为不支持IAB功能的基站。例如，在该实施例中，管理节点的基站类型为类型1，回程节点的基站类型为类型2，新的IAB-node的基站类型为类型3。In an exemplary embodiment, base stations can be divided into the following four types: type 1 to type 4. Among them, the type 1 base station is the management node (IAB-controller) in the IAB network, the type 2 base station is the backhaul node (IAB-donor or IAB-node) that has been connected to the IAB-controller, and the type 3 base station is not connected to the IAB- IAB-donor or IAB-node of the controller. Type 4 base stations are base stations that do not support the IAB function. For example, in this embodiment, the base station type of the management node is type 1, the base station type of the backhaul node is type 2, and the base station type of the new IAB-node is type 3.

基于基站类型的划分，还可以将小区类型划分为4个相应的类型。也就是，类型1小区所属的基站为类型1基站，类型2小区所属的基站为类型2基站，类型3小区所属的基站为类型3基站，类型4小区所属的基站为类型4基站。此时，类型1小区即为IAB-Controller小区，类型2小区即为回程节点小区(IAB-donor小区或IAB-node小区)。Based on the division of base station types, the cell types can also be divided into 4 corresponding types. That is, the base station to which the type 1 cell belongs is a type 1 base station, the base station to which the type 2 cell belongs is a type 2 base station, the base station to which a type 3 cell belongs is a type 3 base station, and the base station to which a type 4 cell belongs is a type 4 base station. At this time, the type 1 cell is the IAB-Controller cell, and the type 2 cell is the backhaul node cell (IAB-donor cell or IAB-node cell).

可以理解，类型1～类型4仅为便于说明，实际场景中，基站类型和小区类型可以通过数字、符号、文字、字母中的一种或多种的组合来构成。此时，基站类型与小区类型可以以相同方式进行标识，也可以通过不同方式进行标识。例如，基站或小区的类型1可以标识为1，类型2可以标识为2；又例如，基站类型1可以标识为A1，小区类型1可以标识为C1；又例如，基站或小区的类型1可以标识为+，类型2标识为++(以符号数目进行标识，或指定字符)。基站类型和小区类型，可以在名称中进行标识、属性中进行标识、收发信息时在信息中进行标识，等，通过其中的一种或多种方式来标识其类型，本申请实施例对此亦无限制。It can be understood that Type 1 to Type 4 are only for convenience of description. In an actual scenario, the base station type and the cell type can be constituted by one or a combination of numbers, symbols, characters, and letters. At this time, the base station type and the cell type can be identified in the same way, or can be identified in different ways. For example, the type 1 of the base station or cell can be identified as 1, and the type 2 can be identified as 2. For example, the base station type 1 can be identified as A1, and the cell type 1 can be identified as C1; for example, the base station or cell type 1 can be identified It is +, and type 2 is identified as ++ (identified by the number of symbols, or designated characters). The base station type and cell type can be identified in the name, in the attribute, in the information when sending and receiving information, etc., and the type can be identified in one or more ways. The embodiments of this application also do this Unlimited.

在图6所示的一个实施例中，第一节点发送的广播消息中可以仅包含搜索信息。或者，在图6的另一实施例中，第一节点发送的广播消息中，可以包括但不局限于搜索信息。In an embodiment shown in FIG. 6, the broadcast message sent by the first node may only include search information. Or, in another embodiment of FIG. 6, the broadcast message sent by the first node may include but is not limited to search information.

此时，广播消息中还可以携带其他信息。示例性的一种实施例中，广播消息中还可以携带类型标识，该类型标识用于标识：第一节点的基站类型、第一节点小区的小区类型、第二节点的基站类型、第二节点小区的小区类型中的一种或多种。换言之，广播消息中可以包括：基站类型或小区类型中的一种或多种，以及，搜索信息。其中，基站类型与小区类型可以广播自身的，也可以广播相互连接的第二节点的，对此无特别限定。At this time, the broadcast message may also carry other information. In an exemplary embodiment, the broadcast message may also carry a type identifier, which is used to identify: the base station type of the first node, the cell type of the first node cell, the base station type of the second node, and the second node One or more of the cell types of the cell. In other words, the broadcast message may include: one or more of base station type or cell type, and search information. Wherein, the base station type and the cell type can be broadcasted by itself or by the second node connected to each other, which is not particularly limited.

例如，在第一节点的广播消息中，可以增加2bit(示例性的，可以有不同变化)来指示第一节点的小区类型。又例如，在第一节点的广播消息中，可以增加2bit来指示第二节点的基站类型。For example, in the broadcast message of the first node, 2 bits can be added (exemplarily, there can be different changes) to indicate the cell type of the first node. For another example, in the broadcast message of the first node, 2 bits may be added to indicate the base station type of the second node.

具体而言，可以在广播消息的主***信息块(Master Information Block，MIB)或***信息块(System Information Block，SIB)中，增加2bit，以对基站类型或小区基站进行指示。Specifically, 2 bits may be added to the master information block (Master Information Block, MIB) or system information block (System Information Block, SIB) of the broadcast message to indicate the base station type or cell base station.

如此，在图6所示出的场景中，只要能够接收到来自于第一节点的广播消息，就能够据此得知与第一节点相互连接的第二节点的小区的信息。从而，在有新节点接入该IAB网络时，亦可在搜索到第一节点小区后，根据该广播消息确定第一节点与第二节点之间的相互连接关系，如此，在进行接入时，可以接入相互连接的第一节点和第二节点。In this way, in the scenario shown in FIG. 6, as long as the broadcast message from the first node can be received, the information of the cell of the second node connected to the first node can be learned accordingly. Therefore, when a new node accesses the IAB network, after the cell of the first node is searched, the mutual connection relationship between the first node and the second node can be determined according to the broadcast message. , You can access the first node and the second node that are connected to each other.

在图6所示实施例中，S602步骤可以是第二节点主动实现的，或者，也可以是响应于第一节点的请求而执行的。In the embodiment shown in FIG. 6, step S602 may be actively implemented by the second node, or may also be executed in response to a request from the first node.

示例性的一种实施例中，第二节点可以周期性向第一节点发送搜索信息。In an exemplary embodiment, the second node may periodically send search information to the first node.

示例性的另一种实施例中，第二节点也可以定时向第一节点发送搜索信息。In another exemplary embodiment, the second node may also periodically send search information to the first node.

示例性的另一种实施例中，第二节点也可以在满足预设条件时，向第一节点发送搜索信息。例如，当存在新的回程节点接入第二节点时，第二节点向第一节点发送第二节点小区的搜索信息。In another exemplary embodiment, the second node may also send search information to the first node when the preset condition is satisfied. For example, when a new backhaul node accesses the second node, the second node sends the search information of the second node cell to the first node.

示例性的另一种实施例中，响应于接收到第一节点发送的信息获取请求，第二节点向第一节点发送第二节点小区的搜索信息。可以理解，信息获取请求用于向第二节点请求第二节点小区的搜索信息。本申请实施例中，第一节点可以根据实际需要向第二节点发送信息获取请求，例如，当有新的回程节点接入第一节点时，第一节点向第二节点发送信息获取请求。In another exemplary embodiment, in response to receiving the information acquisition request sent by the first node, the second node sends the search information of the cell of the second node to the first node. It can be understood that the information acquisition request is used to request the search information of the second node cell from the second node. In the embodiment of the present application, the first node may send an information acquisition request to the second node according to actual needs. For example, when a new backhaul node accesses the first node, the first node sends an information acquisition request to the second node.

在S602步骤触发后，基于第一节点与第二节点的类型不同，搜索信息的发送方式也可以有多种可能的实现方式。After step S602 is triggered, based on the different types of the first node and the second node, there may be multiple possible implementation manners for sending the search information.

示例性的一种场景中，第一节点为回程节点，第二节点为管理节点。当回程节点具备无线通信单元时，回程节点具备无线通信能力，则管理节点可以通过无线通信方式向第一节点发送搜索信息。In an exemplary scenario, the first node is a backhaul node, and the second node is a management node. When the backhaul node has a wireless communication unit and the backhaul node has wireless communication capabilities, the management node can send search information to the first node in a wireless communication manner.

此时，管理节点可以通过在IAB网络***中进行广播的方式，以向回程节点发送管理节点小区的搜索信息。如此，节省了管理节点分别向各回程节点发送搜索信息的繁琐操作，有利于节省管理节点的通信资源。At this time, the management node can send the search information of the management node cell to the backhaul node by broadcasting in the IAB network system. In this way, the cumbersome operation of the management node to separately send search information to each backhaul node is saved, which is beneficial to saving the communication resources of the management node.

或者，管理节点也可以通过单播方式，向回程节点发送管理节点小区的搜索信息。此时，管理节点向多个回程节点单独发送的管理节点小区的搜索信息可以相同，也可以不同。以及，管理节点可以向回程节点发送自己的全部小区的搜索信息，也可以发送其中的部分小区的搜索信息。Alternatively, the management node may also send the search information of the management node cell to the backhaul node in a unicast manner. At this time, the search information of the management node cell separately sent by the management node to the multiple backhaul nodes may be the same or different. And, the management node may send the search information of all its own cells to the backhaul node, or may send the search information of some of the cells.

以图4所示网络***为例，IAB-controller1可以分别向IAB-donor1和IAB-donor2发送管理节点小区的搜索信息，而且，IAB-controller1对应的小区包括小区1～小区3，那么，IAB-controller1可以向IAB-donor1发送小区1和小区2的搜索信息，IAB-controller1可以向IAB-donor2发送小区1～小区3的搜索信息。或者，IAB-controller1可以分别向IAB-donor1和IAB-donor2发送小区1～小区3的搜索信息。Taking the network system shown in Figure 4 as an example, IAB-controller1 can send the search information of the management node cell to IAB-donor1 and IAB-donor2 respectively, and the cells corresponding to IAB-controller1 include cell 1 to cell 3. Then, IAB- Controller1 can send search information of cell 1 and cell 2 to IAB-donor1, and IAB-controller1 can send search information of cell 1 to cell 3 to IAB-donor2. Or, IAB-controller1 may send the search information of cell 1 to cell 3 to IAB-donor1 and IAB-donor2 respectively.

此外，另一种场景中，第一节点为回程节点，第二节点为管理节点。当回程节点与管理节点都具备有线接口时，二者可以通过有线通信方式进行通信。此时，管理节点可以分别向各回程节点分别发送管理节点小区的搜索信息，搜索信息可以相同或不同，不作赘述。In addition, in another scenario, the first node is a backhaul node, and the second node is a management node. When both the backhaul node and the management node have wired interfaces, the two can communicate through wired communication. At this time, the management node may respectively send the search information of the management node cell to each backhaul node, and the search information may be the same or different, and will not be repeated.

在另一种场景中，第一节点为管理节点，第二节点为回程节点，则回程节点向管理节点发送回程节点小区的搜索信息。此时，基于回程节点与管理节点的硬件结构不同，仍可以采用有线或无线的方式，进行搜索信息的通信。在这种场景中，回程节点一般通过单播的方式发送自身小区的搜索信息。In another scenario, the first node is the management node and the second node is the backhaul node, and the backhaul node sends the search information of the backhaul node cell to the management node. At this time, based on the different hardware structures of the backhaul node and the management node, a wired or wireless method can still be used to communicate the search information. In this scenario, the backhaul node generally sends the search information of its own cell in a unicast manner.

除此之外，需要说明的是，在IAB网络中，第一节点与第二节点可以直接通信，例如，通过空口通信或通过直接连接的数据线通信；或者，第一节点与第二节点也刻意间接通信。仍以图4所示为例，第一节点可以为IAB-controller1，第二节点可以为IAB-node1,二者之间可以通过IAB-node2实现间接通信。In addition, it should be noted that in the IAB network, the first node and the second node can communicate directly, for example, through air interface communication or through a directly connected data line; or, the first node and the second node can also communicate with each other directly. Deliberately communicate indirectly. Still taking Figure 4 as an example, the first node can be IAB-controller1, the second node can be IAB-node1, and indirect communication between the two can be achieved through IAB-node2.

基于前述网络***的通信方法，本申请实施例还提供了一种网络接入方法。Based on the aforementioned communication method of the network system, an embodiment of the present application also provides a network access method.

该方法具体应用于待接入节点接入前述目标网络的场景。示例性的，待接入节点可以为未接入IAB网络的IAB-node，也就是，该网络接入方法可以应用于新的IAB-node接入IAB网络***的场景。其中，IAB网络可以为包括管理节点的IAB网络(或称为增强的IAB网络)。除此之外，待接入节点也可以为未接入IAB网络的IAB-donor，不作赘述。This method is specifically applied to the scenario where the node to be accessed accesses the aforementioned target network. Exemplarily, the node to be accessed may be an IAB-node that is not connected to the IAB network, that is, the network access method can be applied to a scenario where a new IAB-node accesses the IAB network system. Among them, the IAB network may be an IAB network including management nodes (or called an enhanced IAB network). In addition, the node to be accessed may also be an IAB-donor that is not connected to the IAB network, and will not be repeated.

图7示出了本申请实施例提供的一种网络接入方法的流程示意图。如图7所示，该方法可以包括如下步骤：Fig. 7 shows a schematic flowchart of a network access method provided by an embodiment of the present application. As shown in Figure 7, the method may include the following steps:

S702，待接入节点在目标网络中搜索第一小区，得到第一节点小区。S702: The node to be accessed searches for the first cell in the target network to obtain the cell of the first node.

现以待接入节点为新的IAB-node为例，对该网络接入方法进行说明。此时，待接入节点可以先搜索回程节点小区，或者，也可以先搜索管理节点小区，本申请实施例对此无特别限定。Now, the network access method will be described by taking the new IAB-node as the node to be accessed as an example. At this time, the node to be accessed may search for the backhaul node cell first, or may also search for the management node cell first, which is not particularly limited in the embodiment of the present application.

S704，待接入节点接收来自第一节点的广播消息，该广播消息携带第二节点小区的搜索信息，其中，第一节点与第二节点相互连接。S704: The node to be accessed receives a broadcast message from the first node, where the broadcast message carries search information of the cell of the second node, where the first node and the second node are connected to each other.

待接入节点搜索到第一节点小区后，即可根据第一节点小区接收到的广播消息，确定第一节点与第二节点之间相互连接。After the access node finds the cell of the first node, it can determine the mutual connection between the first node and the second node according to the broadcast message received by the first node cell.

如前所述，广播消息实际是由第一节点广播的，而广播消息中携带的搜索信息来自于第二节点，不再赘述。As mentioned earlier, the broadcast message is actually broadcast by the first node, and the search information carried in the broadcast message comes from the second node, so it will not be repeated.

该步骤在具体实现时，待接入节点可以在搜索到第一节点小区后，开始收听第一节点的广播，如此，在第一节点向第一节点小区广播时，即可收听到该广播消息。When this step is specifically implemented, the node to be accessed can start to listen to the broadcast of the first node after searching for the cell of the first node, so that when the first node broadcasts to the cell of the first node, the broadcast message can be heard .

S706，待接入节点根据搜索信息搜索第二小区，得到第二节点小区。S706: The node to be accessed searches for the second cell according to the search information to obtain the cell of the second node.

待接入节点可以根据搜索信息，也就是，第二节点小区所在的频段和小区标识(或者，还可以包括其他搜索信息)，来进行小区搜索，得到第二节点小区。The node to be accessed may perform a cell search according to the search information, that is, the frequency band and the cell identifier (or, may also include other search information) where the cell of the second node is located, to obtain the cell of the second node.

S708，待接入节点接入第一节点小区与第二节点小区。S708: The node to be accessed accesses the cell of the first node and the cell of the second node.

此时，第一节点和第二节点相互连接，也就是，管理节点和回程节点是匹配的。解决了新节点接入IAB网络时管理节点与回程节点不匹配的问题，以及进而导致的管理和通信故障问题，提高通信质量。At this time, the first node and the second node are connected to each other, that is, the management node and the backhaul node are matched. It solves the problem of mismatch between the management node and the backhaul node when a new node is connected to the IAB network, as well as the management and communication failure problems caused by it, and improves the communication quality.

如前所述，在IAB网络中，回程节点需要接入一个IAB-controller的小区，并建立回传链路。对IAB网络中的任意一个回程节点而言，该回程节点所接入的IAB-controller，可称为该回程节点的关联IAB-controller。而该关联IAB-controller的小区，则可称为该回程节点(或者该回程节点的小区)的关联IAB-controller小区。As mentioned earlier, in the IAB network, the backhaul node needs to access an IAB-controller cell and establish a backhaul link. For any backhaul node in the IAB network, the IAB-controller accessed by the backhaul node can be referred to as the associated IAB-controller of the backhaul node. The cell associated with the IAB-controller can be referred to as the associated IAB-controller cell of the backhaul node (or the cell of the backhaul node).

此外，接入IAB-controller的回程节点，也可称为该IAB-controller的关联回程节点。而IAB-controller的关联回程节点的小区，称为该IAB-controller(或者该IAB-controller的小区)的关联回程节点小区。In addition, the backhaul node that accesses the IAB-controller can also be referred to as the associated backhaul node of the IAB-controller. The cell associated with the backhaul node of the IAB-controller is called the associated backhaul node cell of the IAB-controller (or the cell of the IAB-controller).

需要说明的是，一个回程节点一般仅接入一个IAB-controller的一个小区，但该关联IAB-controller的所有小区，均可称为该回程节点(或者该回程节点小区)的关联IAB-controller小区。It should be noted that a backhaul node generally only accesses one cell of an IAB-controller, but all cells associated with the IAB-controller can be referred to as the associated IAB-controller cell of the backhaul node (or the backhaul node cell) .

反之，所有接入IAB-controller的回程节点，均可称为该IAB-controller(或者该IAB-controller小区)的关联回程节点。而这些关联回程节点的所有小区，都可称为该IAB-controller(或者该IAB-controller小区)的关联回程节点小区。Conversely, all backhaul nodes that access the IAB-controller can be referred to as the associated backhaul nodes of the IAB-controller (or the IAB-controller cell). And all the cells associated with the backhaul node can be referred to as the associated backhaul node cell of the IAB-controller (or the IAB-controller cell).

示例性的，图8示出了本申请实施例中关联基站和关联小区的示意图。如图8所示，回程节点A有小区{a1,a2}，回程节点B有小区{b1,b2}，管理节点C(IAB-controller C)有小区{c1,c2,c3}。此时，回程节点A和回程节点B均接入IAB-controller C，更具体的，回程节点A接入小区c1，回程节点B接入小区c3。Exemplarily, FIG. 8 shows a schematic diagram of an associated base station and an associated cell in an embodiment of the present application. As shown in Figure 8, the backhaul node A has cells {a1, a2}, the backhaul node B has cells {b1, b2}, and the management node C (IAB-controller C) has cells {c1, c2, c3}. At this time, both the backhaul node A and the backhaul node B access the IAB-controller C. More specifically, the backhaul node A accesses the cell c1, and the backhaul node B accesses the cell c3.

那么，对于回程节点A而言，IAB-controller C为回程节点A的关联IAB-controller，小区c1、c2、c3均为回程节点A的关联IAB-controller小区。对于小区a1(或小区a2)而言，小区c1、c2、c3均为其关联IAB-controller小区。Then, for backhaul node A, IAB-controller C is the associated IAB-controller of backhaul node A, and cells c1, c2, and c3 are all associated IAB-controller cells of backhaul node A. For cell a1 (or cell a2), cells c1, c2, and c3 are all associated IAB-controller cells.

对于回程节点B而言，IAB-controller C为回程节点B的关联IAB-controller，小区c1、c2、c3均为回程节点B的关联IAB-controller小区。对于小区b1(或小区b2)而言，小区c1、c2、c3均为其关联IAB-controller小区。For the backhaul node B, IAB-controller C is the associated IAB-controller of the backhaul node B, and the cells c1, c2, and c3 are all associated IAB-controller cells of the backhaul node B. For cell b1 (or cell b2), cells c1, c2, and c3 are all associated IAB-controller cells.

对于IAB-controller C来说，回程节点A和回程节点B均为IAB-controller C的关联回程节点。而小区a1、a2、b1、b2均为IAB-controller C的关联回程节点小区。对于小区c1(或小区a2、小区a3)而言，小区c1、c2、c3均为其关联IAB-controller小区。For IAB-controller C, backhaul node A and backhaul node B are both associated backhaul nodes of IAB-controller C. The cells a1, a2, b1, and b2 are all associated backhaul node cells of IAB-controller C. For cell c1 (or cell a2, cell a3), cells c1, c2, and c3 are all associated IAB-controller cells.

基于这种设计，在图7所示实施例的实际实现场景中，第一节点小区为第二节点小区的关联第一节点小区；而第二节点小区也是第一节点小区的关联第二节点小区。Based on this design, in the actual implementation scenario of the embodiment shown in FIG. 7, the first node cell is the associated first node cell of the second node cell; and the second node cell is also the associated second node cell of the first node cell .

本申请实施例中，新的IAB-node在接入IAB网络时，还可以对回程节点小区及其关联IAB-controller小区是否满足接入条件进行判断。In the embodiment of the present application, when a new IAB-node accesses the IAB network, it can also judge whether the backhaul node cell and its associated IAB-controller cell meet the access conditions.

如此，在图7所示的实施例中，待接入节点接入的第一节点小区满足预设的第一接入条件，第二节点小区满足预设的第二接入条件。In this way, in the embodiment shown in FIG. 7, the first node cell to be accessed by the node to be accessed meets the preset first access condition, and the second node cell meets the preset second access condition.

在实际场景中，第一接入条件与第二接入条件可以根据实际场景进行自定义设计。二者可以相同，也可以不同。In an actual scenario, the first access condition and the second access condition can be customized according to the actual scenario. The two can be the same or different.

示例性的一种实施例中，第一接入条件可以为第一节点小区不属于被禁止小区，第一节点小区的无线信号强度达到预设的第一强度阈值。而第二接入条件为第二节点小区不属于被禁止小区，第二节点小区的无线信号强度达到预设的第二强度阈值。In an exemplary embodiment, the first access condition may be that the cell of the first node does not belong to a prohibited cell, and the wireless signal strength of the cell of the first node reaches a preset first strength threshold. The second access condition is that the cell of the second node does not belong to a prohibited cell, and the wireless signal strength of the cell of the second node reaches a preset second strength threshold.

其中，被禁止(barred)小区是指该小区被设置或配置为(或不允许)用户禁止接入。实际场景中，可以维护被禁止小区列表，该被禁止小区列表可以在待接入节点中维护，也可以在第一节点可读的存储位置被维护，对此不作限定。或者，在LTE和NR中，还可以在小区的广播消息中携带一个指示位，该指示位用于指示本小区是否被禁止。如此，待接入节点可以根据广播消息中的指示位，来确定该小区是否为被禁止小区。Among them, a barred cell means that the cell is set or configured (or not allowed) to be barred from access by users. In an actual scenario, a list of prohibited cells may be maintained. The list of prohibited cells may be maintained in the node to be accessed, or may be maintained in a storage location readable by the first node, which is not limited. Or, in LTE and NR, an indicator bit may also be carried in the broadcast message of the cell, and the indicator bit is used to indicate whether the cell is prohibited. In this way, the node to be accessed can determine whether the cell is a barred cell according to the indicator bit in the broadcast message.

其中，无线信号强度可以用参考信号接收功率(Reference Signal Receiving Power，RSRP)或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)中的一个或多个进行表征。而第一强度阈值与第二强度阈值也可以相同或不同。回程节点小区与其关联IAB-controller小区的无线信号强度达到对应的强度阈值，能够在一定程度上保证这些小区的通信质量较好，满足待接入节点接入IAB网络后的通信需求。Among them, the wireless signal strength may be characterized by one or more of Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ). The first intensity threshold and the second intensity threshold may also be the same or different. The wireless signal strength of the backhaul node cell and its associated IAB-controller cell reaches the corresponding strength threshold, which can ensure that the communication quality of these cells is good to a certain extent, and meet the communication needs of the access node after accessing the IAB network.

可以理解，实际场景中，第一接入条件(或第二接入条件)还可以有其他变形。示例性的另一种实施例中，第一接入条件可以为第一节点小区不属于被禁止小区。示例性的另一种实施例中，第一接入条件可以为第一节点小区的噪声强度小于预设的第三强度阈值。示例性的另一种实施例中，第一接入条件可以为第一节点小区的带宽满足预设的带宽阈值。不作穷举。第二接入条件亦可以按照前述举例方式进行配置。It can be understood that in actual scenarios, the first access condition (or the second access condition) may also have other variations. In another exemplary embodiment, the first access condition may be that the cell of the first node does not belong to a barred cell. In another exemplary embodiment, the first access condition may be that the noise intensity of the cell of the first node is less than the preset third intensity threshold. In another exemplary embodiment, the first access condition may be that the bandwidth of the first node cell meets a preset bandwidth threshold. Do not exhaustively. The second access condition can also be configured according to the aforementioned example.

本申请实施例中，若第一节点小区不满足第一接入条件，和/或，第二节点小区不满足第二接入条件，则不再执行S708步骤，重新进行相应搜索。In the embodiment of the present application, if the cell of the first node does not meet the first access condition, and/or the cell of the second node does not meet the second access condition, step S708 is no longer executed, and the corresponding search is performed again.

本申请实施例中，待接入节点针对接入条件的判断，可以有多种不同的实现方式：In the embodiments of the present application, the judgment of the access condition of the node to be accessed can be implemented in a variety of different ways:

示例性的一种实施例中，待接入节点在执行S702之后，即可判断第一节点小区是否满足第一接入条件；从而，当第一节点小区满足第一接入条件时，再执行S704。之后，在待接入节点执行S706并搜索到第二节点小区时，即可判断第二节点小区是否满足第二接入条件；从而，当第二节点小区满足第二接入条件时，再执行S708的接入步骤。In an exemplary embodiment, after performing S702, the node to be accessed can determine whether the cell of the first node meets the first access condition; thus, when the cell of the first node meets the first access condition, execute S704. After that, when the node to be accessed executes S706 and searches for the second node cell, it can be judged whether the second node cell meets the second access condition; thus, when the second node cell meets the second access condition, execute S708 access step.

此时，若第一节点小区不满足第一接入条件，则暂不执行S704，重新搜索S702。At this time, if the first node cell does not meet the first access condition, S704 is not performed temporarily, and S702 is searched again.

若第二节点小区不满足第二接入条件，则不执行S708。此时，若广播消息中还存在其他第二节点小区的搜索信息，则执行S704，重新搜索其他第二节点小区，并判断是否满足第二接入条件。或者，若广播消息中不再存在其他满足第二接入条件的第二节点小区，则重新执行S702，搜索其他第一节点小区。If the second node cell does not meet the second access condition, S708 is not performed. At this time, if the search information of other second node cells still exists in the broadcast message, execute S704 to search for other second node cells again, and determine whether the second access condition is satisfied. Or, if there are no other second node cells meeting the second access condition in the broadcast message, S702 is executed again to search for other first node cells.

或者，若第二节点小区不满足第二接入条件，也可执行回到S702，重新搜索另一第一节点小区。Or, if the second node cell does not meet the second access condition, it can also go back to S702 to search for another first node cell again.

示例性的一种实施例中，待接入节点在执行S702之后，即可判断第一节点小区是否满足第一接入条件；同时，执行S704～S706。之后，在待接入节点执行S706并搜索到第二节点小区时，待接入节点判断第二节点小区是否满足第二接入条件。那么，当第一节点小区满足第一接入条件，且第二节点小区满足第二接入条件时，再执行S708的接入步骤。In an exemplary embodiment, after performing S702, the node to be accessed can determine whether the cell of the first node meets the first access condition; at the same time, perform S704 to S706. After that, when the node to be accessed performs S706 and searches for the cell of the second node, the node to be accessed determines whether the second node cell satisfies the second access condition. Then, when the first node cell meets the first access condition and the second node cell meets the second access condition, the access step of S708 is performed again.

在该实施例中，若判断出第一节点小区不满足第一接入条件，则停止另一并行分支的执行动作，回到S702重新搜索第一节点小区。若第二节点小区不满足第二接入条件，则可重新执行S702或重新执行S704，不作赘述。In this embodiment, if it is determined that the first node cell does not meet the first access condition, the execution action of another parallel branch is stopped, and the first node cell is searched again in S702. If the second node cell does not meet the second access condition, S702 or S704 can be re-executed, and details are not described here.

示例性的另一种实施例中，待接入节点可以在执行S706后，已经搜索到第一节点小区与第二节点小区后，即可判断第一节点小区与第二节点小区是否满足预设的接入条件。进而，当第一节点小区满足第一接入条件，且第二节点小区满足第二接入条件时，再执行S708的接入步骤。In another exemplary embodiment, the node to be accessed may, after performing S706, have searched for the first node cell and the second node cell, it can determine whether the first node cell and the second node cell meet the preset requirements. Access conditions. Furthermore, when the first node cell meets the first access condition and the second node cell meets the second access condition, the access step of S708 is performed again.

在该实施例中，若第一节点小区不满足第一接入条件，则可重新执行S702。若第二节点小区不满足第二接入条件，则可重新执行S702或重新执行S704，不作赘述。In this embodiment, if the first node cell does not meet the first access condition, S702 may be executed again. If the second node cell does not meet the second access condition, S702 or S704 can be re-executed, and details are not described here.

在具体执行S708时，待接入节点可以启动随机接入过程，以尝试接入第一节点小区与第二节点小区。When S708 is specifically executed, the node to be accessed may initiate a random access procedure to try to access the cell of the first node and the cell of the second node.

在执行S708时，若搜索到多个满足第二接入条件的第二节点小区，那么，待接入节点可以依次尝试接入多个第二节点小区，直至成功接入其中的一个第二节点小区即可。When performing S708, if multiple cells of the second node that meet the second access condition are searched, the node to be accessed can try to access multiple cells of the second node in sequence until it successfully accesses one of the second node cells. Residential area is fine.

具体而言，待接入节点的随机接入过程为：待接入节点向基站(第一节点或者第二节点)发送接入请求消息，以请求接入该基站的小区(第一节点小区或者第二节点小区)。在接收到该请求接入消息后，基站可以向待接入节点发送反馈消息，该反馈消息用于告知待接入节点告知是否允许接入。那么，待接入节点接收来自于基站的反馈消息后，若反馈消息中告知允许接入，则表明待接入节点已经成功接入该基站的小区；反之，若反馈消息中告知不允许接入(或拒绝接入)，则表明接入失败。Specifically, the random access process of the node to be accessed is: the node to be accessed sends an access request message to the base station (the first node or the second node) to request access to the cell of the base station (the cell of the first node or the cell of the second node). The second node cell). After receiving the access request message, the base station may send a feedback message to the node to be accessed, and the feedback message is used to inform the node to be accessed whether to allow access. Then, after the node to be accessed receives the feedback message from the base station, if the feedback message informs that access is allowed, it indicates that the node to be accessed has successfully accessed the cell of the base station; otherwise, if the feedback message informs that access is not allowed (Or deny access), it indicates that access failed.

在前述随机接入过程中，基站可以为第一节点或第二节点。若待接入节点向第一节点发送接入请求消息，则待接入节点请求接入第一节点小区；或者，若待接入节点向第二节点发送接入请求消息，则待接入节点请求接入第二节点小区。In the foregoing random access process, the base station may be the first node or the second node. If the node to be accessed sends an access request message to the first node, the node to be accessed requests to access the cell of the first node; or, if the node to be accessed sends an access request message to the second node, the node to be accessed Request access to the second node cell.

基于前述处理，待接入节点可以在多个满足第二接入条件的第二节点小区中，依次向各第二节点发送接入请求消息以请求接入，并接受来自于第二节点的反馈消息，直至得到的反馈消息中告知允许接入，则待接入节点成功接入一个第二节点小区。Based on the foregoing processing, the node to be accessed can sequentially send an access request message to each second node in multiple second node cells that meet the second access conditions to request access, and receive feedback from the second node. Message, until the obtained feedback message informs that access is allowed, the node to be accessed successfully accesses a second node cell.

以下，结合图9与图10，对本申请实施例中的网络接入方法进行举例说明。Hereinafter, with reference to FIG. 9 and FIG. 10, the network access method in the embodiment of the present application will be described with examples.

在图9所示场景中，第一节点为回程节点，第二节点为管理节点。如图9所示，该网络接入方法应用于待接入节点，可以包括如下步骤：In the scenario shown in Figure 9, the first node is the backhaul node, and the second node is the management node. As shown in Fig. 9, the network access method is applied to the node to be accessed and may include the following steps:

S901，搜索回程节点小区。S901: Search for a backhaul node cell.

回程节点小区即为类型2小区。The backhaul node cell is a type 2 cell.

S902，判断是否搜索到一个回程节点小区；若是，执行S903；若否，执行S901。S902: Judge whether a backhaul node cell is found; if yes, perform S903; if not, perform S901.

若搜索到，将该回程节点小区记为回程节点小区A1，对应于回程节点A。回程节点A可以仅包括小区A1，或，除小区A1外，还可以包括其他小区。If it is found, mark the backhaul node cell as the backhaul node cell A1, which corresponds to the backhaul node A. The backhaul node A may only include the cell A1, or, in addition to the cell A1, it may also include other cells.

S903，测量回程节点小区A1的信号强度。S903: Measure the signal strength of the backhaul node cell A1.

例如，测量回程节点小区A1的RSRP，和/或，测量回程节点小区A1的RSRQ。For example, measuring the RSRP of the backhaul node cell A1, and/or, measuring the RSRQ of the backhaul node cell A1.

S904，判断回程节点小区A1是否满足第一接入条件；若是，执行S905；若否，执行S901。S904: Determine whether the backhaul node cell A1 satisfies the first access condition; if so, perform S905; if not, perform S901.

其中，第一接入条件为回程节点小区不属于被禁止小区，且信号强度达到预设的第一强度阈值。The first access condition is that the backhaul node cell does not belong to a barred cell, and the signal strength reaches the preset first strength threshold.

S905，获取回程节点A的广播消息，该广播消息中携带管理节点B的小区B1～BN的搜索信息。S905: Obtain a broadcast message of the backhaul node A, where the broadcast message carries search information of the cells B1 to BN of the management node B.

其中，回程节点A与管理节点B相互连接。管理节点B具备N个小区，分别为小区B1、B2、……、BN，N为大于0的整数。Among them, the backhaul node A and the management node B are connected to each other. The management node B has N cells, which are cells B1, B2, ..., BN, and N is an integer greater than zero.

S906，根据搜索信息进行小区搜索，并搜索到管理节点B的N个小区。S906: Perform cell search according to the search information, and search for N cells of the management node B.

换言之，获取回程节点小区A的关联IAB-controller小区。In other words, the associated IAB-controller cell of the backhaul node cell A is obtained.

S907，测量管理节点小区B1～BN的信号强度。S907: Measure the signal strength of the management node cells B1-BN.

S908，判断管理节点小区B1～BN中，是否存在满足第二接入条件的小区；若是，执行S909；若否，执行S901。S908: Determine whether there is a cell that meets the second access condition among the management node cells B1 to BN; if yes, execute S909; if not, execute S901.

S909，启动随机接入过程，尝试接入回程节点小区A1。S909: Start a random access process, and try to access the backhaul node cell A1.

S910，判断是否成功接入回程节点小区A1；若是，执行S911；若否，执行S901。S910: Determine whether the backhaul node cell A1 is successfully accessed; if yes, execute S911; if not, execute S901.

S911，启动随机接入过程，依次尝试接入管理节点小区B1～BN。S911: Start a random access process, and sequentially try to access the management node cells B1 to BN.

S912，判断是否成功接入管理节点小区B1～BN中的一个；若是，执行S913；若否，执行S901。S912: Judge whether to successfully access one of the management node cells B1 to BN; if yes, perform S913; if not, perform S901.

为便于说明，将待接入节点成功接入的一个管理节点小区记为Bi，i为1～N中的一个。For ease of description, a management node cell that the node to be accessed successfully accesses is denoted as Bi, and i is one of 1 to N.

S913，成功接入回程节点小区A1和管理节点小区Bi。S913: Successfully access the backhaul node cell A1 and the management node cell Bi.

在图10所示场景中，第一节点为管理节点，第二节点为回程节点。如图10所示，该网络接入方法可以包括如下步骤：In the scenario shown in Figure 10, the first node is the management node, and the second node is the backhaul node. As shown in Figure 10, the network access method may include the following steps:

S1001，搜索管理节点小区。S1001: Search for a management node cell.

管理节点小区即为类型1小区。The management node cell is a type 1 cell.

S1002，判断是否搜索到一个管理节点小区；若是，执行S1003；若否，执行S1001。S1002: Determine whether a management node cell is found; if yes, execute S1003; if not, execute S1001.

若搜索到，将该管理节点小区记为小区B1，对应于管理节点B。管理节点B可以仅包括小区B1，或，除小区B1外，还可以包括其他小区。If found, mark the management node cell as cell B1, which corresponds to the management node B. The management node B may only include the cell B1, or, in addition to the cell B1, it may also include other cells.

S1003，测量管理节点小区B1的信号强度。S1003: Measure the signal strength of the management node cell B1.

例如，测量管理节点小区B1的RSRP，和/或，测量管理节点小区B1的RSRQ。For example, the RSRP of the management node cell B1 is measured, and/or the RSRQ of the management node cell B1 is measured.

S1004，判断管理节点小区B1是否满足第二接入条件；若是，执行S1005；若否，执行S1001。S1004: Determine whether the management node cell B1 satisfies the second access condition; if yes, execute S1005; if not, execute S1001.

其中，第二接入条件为管理节点小区不属于被禁止小区，且信号强度达到预设的第二强度阈值。The second access condition is that the management node cell does not belong to a barred cell, and the signal strength reaches the preset second strength threshold.

S1005，获取管理节点B的广播消息，该广播消息中携带回程节点A的小区A1～AM的搜索信息。S1005: Obtain a broadcast message of the management node B, where the broadcast message carries search information of the cells A1 to AM of the backhaul node A.

其中，回程节点A与管理节点B相互连接。回程节点A具备M个小区，分别为小区A1、A2、……、AM，M为大于0的整数。Among them, the backhaul node A and the management node B are connected to each other. The backhaul node A has M cells, which are cells A1, A2, ..., AM, and M is an integer greater than zero.

S1006，根据搜索信息进行小区搜索，并搜索到回程节点A的M个小区。S1006: Perform cell search according to the search information, and search for M cells of the backhaul node A.

S1007，测量回程节点小区A1～AM的信号强度。S1007: Measure the signal strength of the backhaul node cell A1-AM.

S1008，判断回程节点小区A1～AM中，是否存在满足第一接入条件的小区；若是，执行S1009；若否，执行S1001。S1008: Determine whether there is a cell that meets the first access condition among the backhaul node cells A1 to AM; if yes, execute S1009; if not, execute S1001.

S1009，启动随机接入过程，尝试接入管理节点小区B1。S1009: Start a random access process, and try to access the management node cell B1.

S1010，判断是否成功接入管理节点小区B1；若是，执行S1011；若否，执行S1001。S1010: Determine whether the management node cell B1 is successfully accessed; if yes, execute S1011; if not, execute S1001.

S1011，启动随机接入过程，依次尝试接入回程节点小区A1～AM。S1011: Start a random access process, and sequentially try to access backhaul node cells A1 to AM.

S1012，判断是否成功接入回程节点小区A1～AM中的一个；若是，执行S1013；若否，执行S1001。S1012: Judge whether it is successfully connected to one of the backhaul node cells A1 to AM; if yes, execute S1013; if not, execute S1001.

为便于说明，将待接入节点成功接入的一个回程节点小区记为Aj，j为1～M中的一个。For ease of description, a backhaul node cell that the node to be accessed successfully accesses is marked as Aj, where j is one of 1 to M.

S1013，成功接入回程节点小区Aj和管理节点小区B1。S1013: Successfully access the backhaul node cell Aj and the management node cell B1.

此外，需要说明的是，本申请实施例中，可以由回程节点向管理节点发送回程节点小区的搜索信息，也可以由管理节点向回程节点发送管理节点小区的搜索信息。这两个过程无冲突，回程节点与管理节点可以相互向对方发送自己小区的搜索信息，此时，无论新的IAB-node先搜索回程节点小区，还是先搜索管理节点小区，都可以按照前述方式来接入IAB网络。In addition, it should be noted that, in the embodiment of the present application, the backhaul node may send the search information of the backhaul node cell to the management node, or the management node may send the search information of the management node cell to the backhaul node. There is no conflict between these two processes. The backhaul node and the management node can send each other the search information of their own cells. At this time, whether the new IAB-node first searches for the backhaul node cell or the management node cell first, it can follow the aforementioned method To access the IAB network.

基于前述设计，本申请实施例所提供的网络***的通信方法，以及，网络接入方法，保证了待接入节点接入的第一节点和第二节点是相互连接的，那么，当目标网络为包括管理节点的IAB网络时，也能够保证新的IAB-node接入IAB网络时，接入相互连接的回程节点和IAB-controller中，解决了新节点接入IAB网络时管理节点与回程节点不匹配的问题，以及进而导致的管理和通信故障问题，提高通信质量。Based on the foregoing design, the communication method of the network system and the network access method provided by the embodiments of the present application ensure that the first node and the second node to be accessed by the access node are connected to each other, then, when the target network In order to include the management node in the IAB network, it can also ensure that when the new IAB-node is connected to the IAB network, it is connected to the interconnected backhaul node and IAB-controller, which solves the problem of the management node and backhaul node when the new node is connected to the IAB network. The problem of mismatch, as well as the management and communication failures that lead to it, improves the quality of communication.

本申请实施例还提供了一种网络接入设备。示例性的，可以参考图11，网络接入设备可以包括：The embodiment of the present application also provides a network access device. Exemplarily, referring to FIG. 11, the network access device may include:

搜索模块112，用于在目标网络中搜索第一小区，得到第一节点小区；The search module 112 is configured to search for the first cell in the target network to obtain the first node cell;

接收模块114，用于接收来自第一节点的广播消息，广播消息携带第二节点小区的搜索信息，其中，第一节点与第二节点相互连接；The receiving module 114 is configured to receive a broadcast message from the first node, and the broadcast message carries search information of the cell of the second node, where the first node and the second node are connected to each other;

搜索模块112，还用于根据搜索信息搜索第二小区，得到第二节点小区；The search module 112 is further configured to search for the second cell according to the search information to obtain the second node cell;

接入模块116，用于接入第一节点小区与第二节点小区；The access module 116 is used to access the cell of the first node and the cell of the second node;

其中，第一节点小区满足预设的第一接入条件，第二节点小区满足预设的第二接入条件。Wherein, the first node cell meets the preset first access condition, and the second node cell meets the preset second access condition.

在另一种可能的实施例中，搜索信息为第二节点响应于信息获取请求向第一节点发送的，其中，信息获取请求是由第一节点向第二节点发送的。也就是，搜索信息是由第二节点响应于第一节点的请求而发送的，第一节点在接收到第二节点的反馈后，在第一节点小区内广播的。In another possible embodiment, the search information is sent by the second node to the first node in response to the information acquisition request, where the information acquisition request is sent by the first node to the second node. That is, the search information is sent by the second node in response to the request of the first node, and the first node broadcasts it in the cell of the first node after receiving the feedback from the second node.

在另一种可能的实施例中，第一节点为回程节点，第二节点为管理节点。如前述图9所示的场景，不作赘述。In another possible embodiment, the first node is a backhaul node, and the second node is a management node. The scenario shown in Figure 9 is not repeated here.

在另一种可能的实施例中，第一节点为管理节点，第二节点为回程节点。如前述图10所示的场景，不作赘述。In another possible embodiment, the first node is a management node, and the second node is a backhaul node. The scenario shown in Figure 10 is not repeated here.

本申请实施例中，目标网络可以为接入回传一体化IAB网络，该IAB网络包括一个或多个管理节点，每个管理节点用于管理一个或多个回程节点，其中，回程节点可以包括：已接入目标网络的IAB节点和/或已接入目标网络的IAB宿主基站。如图3～图5所示，亦不作赘述。In the embodiment of the present application, the target network may be an integrated IAB network with access and backhaul. The IAB network includes one or more management nodes, and each management node is used to manage one or more backhaul nodes, where the backhaul nodes may include : The IAB node that has accessed the target network and/or the IAB donor base station that has accessed the target network. As shown in Figure 3 to Figure 5, it will not be repeated.

本申请实施例中，网络接入设备为未接入目标网络的IAB节点。In the embodiment of the present application, the network access device is an IAB node that is not connected to the target network.

在另一种可能的实施例中，第一接入条件为第一节点小区不属于被禁止小区，第一节点小区的无线信号强度达到预设的第一强度阈值；第二接入条件为第二节点小区不属于被禁止小区，第二节点小区的无线信号强度达到预设的第二强度阈值。也就是，待接入节点接入满足预设接入条件的回程节点小区及其关联IAB-controller小区。In another possible embodiment, the first access condition is that the cell of the first node does not belong to a barred cell, and the wireless signal strength of the cell of the first node reaches a preset first strength threshold; the second access condition is The cell of the second node does not belong to a prohibited cell, and the wireless signal strength of the cell of the second node reaches the preset second strength threshold. That is, the node to be accessed accesses the backhaul node cell that meets the preset access conditions and its associated IAB-controller cell.

图11所示实施例的网络接入设备可用于执行上述方法实施例的技术方案，其实现原理和技术效果可以进一步参考方法实施例中的相关描述，可选的，该网络接入设备可以是具备IAB功能的基站。The network access device of the embodiment shown in FIG. 11 can be used to implement the technical solutions of the above method embodiments. For its implementation principles and technical effects, please refer to the related descriptions in the method embodiments. Optionally, the network access device may be Base station with IAB function.

应理解图11所示网络接入设备的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块以软件通过处理元件调用的形式实现，部分模块通过硬件的形式实现。例如，搜索模块112可以为单独设立的处理元件，也可以集成在网络接入设备，例如终端的某一个芯片中实现，此外，也可以以程序的形式存储于网络接入设备的存储器中，由网络接入设备的某一个处理元件调用并执行以上各个模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。It should be understood that the division of the various modules of the network access device shown in FIG. 11 is only a division of logical functions, and may be fully or partially integrated into one physical entity during actual implementation, or may be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; part of the modules can be implemented in the form of software called by the processing elements, and some of the modules can be implemented in the form of hardware. For example, the search module 112 may be a separate processing element, or it may be integrated in a network access device, such as a certain chip of a terminal. In addition, it may also be stored in the memory of the network access device in the form of a program. A certain processing element of the network access device calls and executes the functions of the above modules. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序的处理器。再如，这些模块可以集成在一起，以片上***(system-on-a-chip，SOC)的形式实现。For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more Field Programmable Gate Array (FPGA), etc. For another example, when one of the above modules is implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

此外，图12还示出了网络接入装置的实体结构示意图。该网络接入设备可以用于实现前述待接入节点所对应的方法，具体参见上述方法实施例中的说明。In addition, FIG. 12 also shows a schematic diagram of the physical structure of the network access device. The network access device may be used to implement the method corresponding to the aforementioned node to be accessed. For details, refer to the description in the foregoing method embodiment.

如图12所示，该网络接入设备包括：As shown in Figure 12, the network access equipment includes:

存储器1210； Memory 1210;

处理器1220；以及 Processor 1220; and

计算机程序；Computer program;

其中，计算机程序存储在存储器1210中，并被配置为由处理器1220执行以实现如上述实施例中网络接入设备所执行的方法。The computer program is stored in the memory 1210 and is configured to be executed by the processor 1220 to implement the method executed by the network access device in the foregoing embodiment.

其中，网络接入设备中处理器1220的数目可以为一个或多个，处理器1220也可以称为处理单元，可以实现一定的控制功能。所述处理器1220可以是通用处理器或者专用处理器等。在一种可选地设计中，处理器1220也可以存有指令，所述指令可以被所述处理器1220运行，使得所述网络接入设备执行上述方法实施例中描述的方法。The number of processors 1220 in the network access device may be one or more, and the processors 1220 may also be referred to as processing units, which may implement certain control functions. The processor 1220 may be a general-purpose processor or a special-purpose processor. In an optional design, the processor 1220 may also store instructions, and the instructions may be executed by the processor 1220, so that the network access device executes the method described in the foregoing method embodiment.

在又一种可能的设计中，网络接入设备可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。In another possible design, the network access device may include a circuit, and the circuit may implement the sending or receiving or communication function in the foregoing method embodiment.

可选地，所述网络接入设备中存储器1210的数目可以为一个或多个，存储器1210上存有指令或者中间数据，所述指令可在所述处理器1220上被运行，使得所述网络接入设备执行上述方法实施例中描述的方法。可选地，所述存储器1210中还可以存储有其他相关数据。可选地处理器1220中也可以存储指令和/或数据。所述处理器1220和存储器1210可以单独设置，也可以集成在一起。Optionally, the number of memories 1210 in the network access device may be one or more, and instructions or intermediate data are stored in the memory 1210, and the instructions may be executed on the processor 1220, so that the network The access device executes the method described in the above method embodiment. Optionally, the memory 1210 may also store other related data. Optionally, instructions and/or data may also be stored in the processor 1220. The processor 1220 and the memory 1210 can be provided separately or integrated together.

此外，如图12所示，在该网络接入设备中还设置有收发器1230，其中，所述收发器1230可以称为收发单元、收发机、收发电路、或者收发器等，用于与测试设备或其他终端设备进行数据传输或通信，在此不再赘述。In addition, as shown in FIG. 12, the network access device is also provided with a transceiver 1230, where the transceiver 1230 may be called a transceiver unit, transceiver, transceiver circuit, or transceiver, etc., for testing The device or other terminal devices perform data transmission or communication, which will not be repeated here.

如图12所示，存储器1210、处理器1220与收发器1230通过总线连接并通信。As shown in FIG. 12, the memory 1210, the processor 1220, and the transceiver 1230 are connected and communicate via a bus.

若该网络接入设备用于实现对应于图7、图9、图10中的方法时，例如，可以由收发器1230来接收来自第一节点的广播消息。而处理器1220用于完成相应的确定或者控制操作，可选的，还可以在存储器1210中存储相应的指令。各个部件的具体的处理方式可以参考前述实施例的相关描述。If the network access device is used to implement the method corresponding to FIG. 7, FIG. 9, and FIG. 10, for example, the transceiver 1230 may receive the broadcast message from the first node. The processor 1220 is used to complete corresponding determination or control operations. Optionally, the processor 1220 may also store corresponding instructions in the memory 1210. For the specific processing manner of each component, reference may be made to the related description of the foregoing embodiment.

本申请实施例还提供了一种网络***，示例性的，可以参考图13，网络***1300可以包括：第一节点1310和第二节点1320，第一节点1310与第二节点1320相互连接。具体的，第二节点1320，用于向第一节点1310发送第二节点小区的搜索信息；第一节点1310，用于接收搜索信息；第一节点1310，还用于在第一节点小区内发送广播消息，广播消息携带搜索信息。The embodiment of the present application also provides a network system. For example, referring to FIG. 13, the network system 1300 may include: a first node 1310 and a second node 1320, where the first node 1310 and the second node 1320 are connected to each other. Specifically, the second node 1320 is used to send search information of the second node cell to the first node 1310; the first node 1310 is used to receive search information; the first node 1310 is also used to send information in the first node cell Broadcast messages, which carry search information.

在另一种可能的实施例中，第一节点1310为回程节点，第二节点1320为管理节点。如前述图9所示的场景，不作赘述。In another possible embodiment, the first node 1310 is a backhaul node, and the second node 1320 is a management node. The scenario shown in Figure 9 is not repeated here.

在另一种可能的实施例中，第一节点1310为管理节点，第二节点1320为回程节点。如前述图10所示的场景，不作赘述。In another possible embodiment, the first node 1310 is a management node, and the second node 1320 is a backhaul node. The scenario shown in Figure 10 is not repeated here.

本申请实施例中，该网络***可以为接入回传一体化IAB网络，该IAB网络包括一个或多个管理节点，每个管理节点用于管理一个或多个回程节点，其中，回程节点可以包括：已接入网络***的IAB节点和/或已接入网络***的IAB宿主基站。如图3～图5所示，亦不作赘述。In the embodiment of the present application, the network system may be an integrated backhaul IAB network. The IAB network includes one or more management nodes, and each management node is used to manage one or more backhaul nodes, where the backhaul nodes can be Including: IAB nodes that have been connected to the network system and/or IAB donor base stations that have been connected to the network system. As shown in Figure 3 to Figure 5, it will not be repeated.

本申请实施例中，网络接入设备为未接入该网络***的IAB节点。In the embodiment of the present application, the network access device is an IAB node that is not connected to the network system.

具体而言，IAB宿主基站(IAB-donor)的结构可以参考图5，包括：集中式单元CU、分布式单元DU和通信单元。其中，集中式单元，用于集中管理关联的IAB节点，并与关联的管理节点相连接；分布式单元，用于连接关联的IAB节点；而通信单元可以包括：无线通信单元和/或有线通信单元。Specifically, the structure of the IAB-donor base station (IAB-donor) may refer to FIG. 5, including: a centralized unit CU, a distributed unit DU, and a communication unit. Among them, the centralized unit is used to centrally manage the associated IAB node and is connected to the associated management node; the distributed unit is used to connect the associated IAB node; and the communication unit may include: a wireless communication unit and/or wired communication unit.

图13所示的网络***亦可以参考图3、图4，此处不作赘述。The network system shown in FIG. 13 can also refer to FIG. 3 and FIG. 4, which will not be repeated here.

本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行上述实施例所述的通信方法或网络接入方法。The embodiments of the present application also provide a computer-readable storage medium in which a computer program is stored, which when running on a computer, causes the computer to execute the communication method or network access method described in the above-mentioned embodiments .

此外，本申请实施例还提供一种计算机程序产品，该计算机程序产品包括计算机程序，当其在计算机上运行时，使得计算机执行上述实施例所述的通信方法或网络接入方法。In addition, the embodiments of the present application also provide a computer program product, which includes a computer program, which when running on a computer, causes the computer to execute the communication method or network access method described in the above-mentioned embodiments.

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

Claims

一种网络接入方法，其特征在于，包括：A network access method, characterized in that it comprises:

待接入节点在目标网络中搜索第一小区，得到第一节点小区；The node to be accessed searches for the first cell in the target network to obtain the cell of the first node;

所述待接入节点接收来自第一节点的广播消息，所述广播消息携带第二节点小区的搜索信息，其中，所述第一节点与第二节点相互连接；Receiving, by the node to be accessed, a broadcast message from a first node, the broadcast message carrying search information of a cell of a second node, wherein the first node and the second node are connected to each other;

所述待接入节点根据所述搜索信息搜索第二小区，得到第二节点小区；The node to be accessed searches for the second cell according to the search information to obtain the cell of the second node;

所述待接入节点接入所述第一节点小区与所述第二节点小区；The node to be accessed accesses the cell of the first node and the cell of the second node;

其中，所述第一节点小区满足预设的第一接入条件，所述第二节点小区满足预设的第二接入条件。Wherein, the first node cell meets a preset first access condition, and the second node cell meets a preset second access condition.
根据权利要求1所述的方法，其特征在于，所述搜索信息包括：The method according to claim 1, wherein the search information comprises:

所述第二节点小区所在的频段；The frequency band where the cell of the second node is located;

所述第二节点小区的小区标识。The cell identity of the second node cell.
根据权利要求1或2所述的方法，其特征在于，所述搜索信息由所述第二节点周期性向所述第一节点发送。The method according to claim 1 or 2, wherein the search information is periodically sent by the second node to the first node.
根据权利要求1或2所述的方法，其特征在于，所述搜索信息为所述第二节点响应于信息获取请求向所述第一节点发送的，其中，所述信息获取请求是由所述第一节点向所述第二节点发送的。The method according to claim 1 or 2, wherein the search information is sent by the second node to the first node in response to an information acquisition request, wherein the information acquisition request is made by the Sent by the first node to the second node.
根据权利要求1-4任一项所述的方法，其特征在于，所述广播消息还包括：类型标识，所述类型标识用于标识所述第二节点的基站类型和/或所述第二节点小区的小区类型。The method according to any one of claims 1 to 4, wherein the broadcast message further comprises: a type identifier, and the type identifier is used to identify the base station type of the second node and/or the second node The cell type of the node cell.
根据权利要求1-5任一项所述的方法，其特征在于，所述第一节点为回程节点，所述第二节点为管理节点。The method according to any one of claims 1-5, wherein the first node is a backhaul node, and the second node is a management node.
根据权利要求1-5任一项所述的方法，其特征在于，所述第一节点为管理节点，所述第二节点为回程节点。The method according to any one of claims 1-5, wherein the first node is a management node, and the second node is a backhaul node.
根据权利要求6或7所述的方法，其特征在于，所述目标网络为接入回传一体化IAB网络；The method according to claim 6 or 7, wherein the target network is an integrated IAB network with access and backhaul;

所述IAB网络包括一个或多个所述管理节点，每个所述管理节点用于管理一个或多个所述回程节点；The IAB network includes one or more of the management nodes, and each of the management nodes is used to manage one or more of the backhaul nodes;

所述回程节点包括：已接入所述目标网络的IAB节点和/或已接入所述目标网络的IAB宿主基站。The backhaul node includes: an IAB node that has accessed the target network and/or an IAB donor base station that has accessed the target network.
根据权利要求8所述的方法，其特征在于，所述待接入节点为未接入所述目标网络的IAB节点。The method according to claim 8, wherein the node to be accessed is an IAB node that is not connected to the target network.
根据权利要求1-9任一项所述的方法，其特征在于，所述第一接入条件为所述第一节点小区不属于被禁止(barred)小区，所述第一节点小区的无线信号强度达到预设的第一强度阈值；The method according to any one of claims 1-9, wherein the first access condition is that the first node cell does not belong to a barred cell, and the wireless signal of the first node cell The intensity reaches the preset first intensity threshold;

所述第二接入条件为所述第二节点小区不属于被禁止小区，所述第二节点小区的无线信号强度达到预设的第二强度阈值。The second access condition is that the second node cell does not belong to a forbidden cell, and the radio signal strength of the second node cell reaches a preset second strength threshold.
一种网络***通信方法，其特征在于，应用于包括第一节点和第二节点的网络***中，所述方法包括：A network system communication method, characterized in that it is applied to a network system including a first node and a second node, and the method includes:

所述第二节点向所述第一节点发送第二节点小区的搜索信息；所述第一节点与所述第二节点相互连接；Sending, by the second node, cell search information of the second node to the first node; the first node and the second node are connected to each other;

所述第一节点接收所述搜索信息；Receiving the search information by the first node;

所述第一节点在第一节点小区内发送广播消息，所述广播消息携带所述搜索信息。The first node sends a broadcast message in a cell of the first node, and the broadcast message carries the search information.
根据权利要求11所述的方法，其特征在于，所述搜索信息包括：The method according to claim 11, wherein the search information comprises:

所述第二节点小区所在的频段；The frequency band where the cell of the second node is located;

所述第二节点小区的小区标识。The cell identity of the second node cell.
根据权利要求11或12所述的方法，其特征在于，所述广播消息还包括：类型标识，所述类型标识用于标识所述第二节点的基站类型和/或所述第二节点小区的小区类型。The method according to claim 11 or 12, wherein the broadcast message further comprises: a type identifier, and the type identifier is used to identify the type of the base station of the second node and/or the type of the cell of the second node. Cell type.
根据权利要求11-13任一项所述的方法，其特征在于，所述第一节点为回程节点，所述第二节点为管理节点。The method according to any one of claims 11-13, wherein the first node is a backhaul node, and the second node is a management node.
根据权利要求11-13任一项所述的方法，其特征在于，所述第一节点为管理节点，所述第二节点为回程节点。The method according to any one of claims 11-13, wherein the first node is a management node, and the second node is a backhaul node.
根据权利要求14或15所述的方法，其特征在于，所述网络***为接入回传一体化IAB网络；The method according to claim 14 or 15, wherein the network system is an integrated IAB network with access and backhaul;

所述IAB网络包括一个或多个所述管理节点，每个所述管理节点用于管理一个或多个所述回程节点；The IAB network includes one or more of the management nodes, and each of the management nodes is used to manage one or more of the backhaul nodes;

所述回程节点包括：已接入所述网络***的IAB节点和/或已接入所述网络***的IAB宿主基站。The backhaul node includes: an IAB node that has accessed the network system and/or an IAB donor base station that has accessed the network system.
根据权利要求16所述的方法，其特征在于，所述IAB宿主基站包括：The method according to claim 16, wherein the IAB donor base station comprises:

集中式单元，用于集中管理下辖的IAB节点，并与管理节点相连接；Centralized unit, used for centralized management of IAB nodes under its jurisdiction, and connected with management nodes;

分布式单元，用于为下游IAB节点或用户终端提供接入服务；Distributed unit, used to provide access services for downstream IAB nodes or user terminals;

通信单元；所述通信单元包括：无线通信单元和/或有线通信单元。Communication unit; the communication unit includes: a wireless communication unit and/or a wired communication unit.
根据权利要求14-17任一项所述的方法，其特征在于，所述管理节点包括无线通信单元；或者，所述管理节点包括无线通信单元与有线通信单元。The method according to any one of claims 14-17, wherein the management node comprises a wireless communication unit; or, the management node comprises a wireless communication unit and a wired communication unit.
一种网络接入设备，其特征在于，包括：A network access device, characterized in that it comprises:

搜索模块，用于在目标网络中搜索第一小区，得到第一节点小区；The search module is used to search for the first cell in the target network to obtain the cell of the first node;

接收模块，用于接收来自第一节点的广播消息，所述广播消息携带第二节点小区的搜索信息，其中，所述第一节点与第二节点相互连接；A receiving module, configured to receive a broadcast message from a first node, the broadcast message carrying search information of a cell of the second node, wherein the first node and the second node are connected to each other;

所述搜索模块，还用于根据所述搜索信息搜索第二小区，得到第二节点小区；The search module is further configured to search for a second cell according to the search information to obtain a second node cell;

接入模块，用于接入所述第一节点小区与所述第二节点小区；An access module for accessing the first node cell and the second node cell;

其中，所述第一节点小区满足预设的第一接入条件，所述第二节点小区满足预设的第二接入条件。Wherein, the first node cell meets a preset first access condition, and the second node cell meets a preset second access condition.
根据权利要求19所述的设备，其特征在于，所述搜索信息包括：The device according to claim 19, wherein the search information comprises:

所述第二节点小区所在的频段；The frequency band where the cell of the second node is located;

所述第二节点小区的小区标识。The cell identity of the second node cell.
根据权利要求19或20所述的设备，其特征在于，所述搜索信息由所述第二节点周期性向所述第一节点发送。The device according to claim 19 or 20, wherein the search information is periodically sent by the second node to the first node.
根据权利要求19或20所述的设备，其特征在于，所述搜索信息为所述第二节点响应于信息获取请求向所述第一节点发送的，其中，所述信息获取请求是由所述第一节点向所述第二节点发送的。The device according to claim 19 or 20, wherein the search information is sent by the second node to the first node in response to an information acquisition request, wherein the information acquisition request is made by the Sent by the first node to the second node.
根据权利要求19-22任一项所述的设备，其特征在于，所述广播消息还包括：类型标识，所述类型标识用于标识所述第二节点的基站类型和/或所述第二节点小区的小区类型。The device according to any one of claims 19-22, wherein the broadcast message further comprises: a type identifier, and the type identifier is used to identify the base station type of the second node and/or the second node The cell type of the node cell.
根据权利要求19-23任一项所述的设备，其特征在于，所述第一节点为回程节点，所述第二节点为管理节点。The device according to any one of claims 19-23, wherein the first node is a backhaul node, and the second node is a management node.
根据权利要求19-23任一项所述的设备，其特征在于，所述第一节点为管理节点，所述第二节点为回程节点。The device according to any one of claims 19-23, wherein the first node is a management node, and the second node is a backhaul node.
根据权利要求24或25所述的设备，其特征在于，所述目标网络为接入回传一体化IAB网络；The device according to claim 24 or 25, wherein the target network is an access backhaul integrated IAB network;

所述IAB网络包括一个或多个所述管理节点，每个所述管理节点用于管理一个或多个所述回程节点；The IAB network includes one or more of the management nodes, and each of the management nodes is used to manage one or more of the backhaul nodes;

所述回程节点包括：已接入所述目标网络的IAB节点和/或已接入所述目标网络的IAB宿主基站。The backhaul node includes: an IAB node that has accessed the target network and/or an IAB donor base station that has accessed the target network.
根据权利要求26所述的设备，其特征在于，所述网络接入设备为未接入所述目标网络的IAB节点。The device according to claim 26, wherein the network access device is an IAB node that is not connected to the target network.
根据权利要求19-27任一项所述的设备，其特征在于，所述第一接入条件为所述第一节点小区不属于被禁止小区，所述第一节点小区的无线信号强度达到预设的第一强度阈值；The device according to any one of claims 19-27, wherein the first access condition is that the first node cell does not belong to a forbidden cell, and the radio signal strength of the first node cell reaches a predetermined level. Set the first intensity threshold;

所述第二接入条件为所述第二节点小区不属于被禁止小区，所述第二节点小区的无线信号强度达到预设的第二强度阈值。The second access condition is that the second node cell does not belong to a forbidden cell, and the radio signal strength of the second node cell reaches a preset second strength threshold.
一种网络***，其特征在于，包括：第一节点和第二节点，所述第一节点与所述第二节点相互连接；A network system, characterized by comprising: a first node and a second node, the first node and the second node are connected to each other;

所述第二节点，用于向所述第一节点发送第二节点小区的搜索信息；The second node is configured to send search information of the cell of the second node to the first node;

所述第一节点，用于接收所述搜索信息；The first node is configured to receive the search information;

所述第一节点，还用于在第一节点小区内发送广播消息，所述广播消息携带所述搜索信息。The first node is further configured to send a broadcast message in the cell of the first node, and the broadcast message carries the search information.
根据权利要求29所述的***，其特征在于，所述搜索信息包括：The system according to claim 29, wherein the search information comprises:

所述第二节点小区所在的频段；The frequency band where the cell of the second node is located;

所述第二节点小区的小区标识。The cell identity of the second node cell.
根据权利要求29或30所述的***，其特征在于，所述广播消息还包括：类型标识，所述类型标识用于标识所述第二节点的基站类型和/或所述第二节点小区的小区类型。The system according to claim 29 or 30, wherein the broadcast message further comprises: a type identifier, and the type identifier is used to identify the type of the base station of the second node and/or the type of the cell of the second node. Cell type.
根据权利要求29-31任一项所述的***，其特征在于，所述第一节点为回程节点，所述第二节点为管理节点。The system according to any one of claims 29-31, wherein the first node is a backhaul node, and the second node is a management node.
根据权利要求29-31任一项所述的***，其特征在于，所述第一节点为管理节点，所述第二节点为回程节点。The system according to any one of claims 29-31, wherein the first node is a management node, and the second node is a backhaul node.
根据权利要求32或33所述的***，其特征在于，所述网络***为接入回传一体化IAB网络***；The system according to claim 32 or 33, wherein the network system is an integrated IAB network system for access and backhaul;

所述IAB网络***包括一个或多个所述管理节点，每个所述管理节点用于管理一个或多个所述回程节点；The IAB network system includes one or more of the management nodes, and each of the management nodes is used to manage one or more of the backhaul nodes;

所述回程节点包括：已接入所述网络***的IAB节点和/或已接入所述网络***的IAB宿主基站。The backhaul node includes: an IAB node that has accessed the network system and/or an IAB donor base station that has accessed the network system.
根据权利要求34所述的***，其特征在于，所述IAB宿主基站包括：The system according to claim 34, wherein the IAB donor base station comprises:

集中式单元，用于集中管理关联的IAB节点，并与关联的管理节点相连接；The centralized unit is used to centrally manage the associated IAB nodes and connect with the associated management nodes;

分布式单元，用于连接关联的IAB节点；Distributed unit, used to connect the associated IAB node;

通信单元；所述通信单元包括：无线通信单元和/或有线通信单元。Communication unit; the communication unit includes: a wireless communication unit and/or a wired communication unit.
根据权利要求32-35任一项所述的***，其特征在于，所述管理节点包括无线通信单元；或者，所述管理节点包括无线通信单元与有线通信单元。The system according to any one of claims 32-35, wherein the management node comprises a wireless communication unit; or, the management node comprises a wireless communication unit and a wired communication unit.
一种计算机可读存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被处理器执行以实现如权利要求1-10任一项所述的方法。A computer-readable storage medium, characterized in that a computer program is stored thereon, and the computer program is executed by a processor to implement the method according to any one of claims 1-10.