WO2019241992A1 - 一种路由的方法、节点及计算机存储介质 - Google Patents

一种路由的方法、节点及计算机存储介质 Download PDF

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Publication number
WO2019241992A1
WO2019241992A1 PCT/CN2018/092359 CN2018092359W WO2019241992A1 WO 2019241992 A1 WO2019241992 A1 WO 2019241992A1 CN 2018092359 W CN2018092359 W CN 2018092359W WO 2019241992 A1 WO2019241992 A1 WO 2019241992A1
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service
node
iab
destination
identifier
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PCT/CN2018/092359
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English (en)
French (fr)
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储循循
戴明增
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华为技术有限公司
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Priority to PCT/CN2018/092359 priority Critical patent/WO2019241992A1/zh
Publication of WO2019241992A1 publication Critical patent/WO2019241992A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/34—Source routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a routing method, a node, and a computer storage medium.
  • IAB Integrated backhaul
  • IAB L2 Relay architecture the air interface protocol layers between IAB nodes and between IAB nodes and IABs are modified. Compared with the traditional air interface protocol layers, the Adapt layer is added to implement routing functions.
  • the Adapt protocol header of the adaptive routing protocol based on directional transmission contains the destination IAB node identifier (node ID) of the data packet, or the destination IAB anchor ID (donor ID), and the rest Contents to be determined.
  • the IAB node maintains a local routing table. For uplink data packets, the IAB node determines the next-hop IAB node ID according to the destination IAB donor ID. For downlink data packets, the IAB node determines the next-hop IAB node ID according to the destination IAB node ID. For upstream data, the Adapt header is filled in by the IAB access node. For downstream data, the Adapt header is filled in by the IAB donor.
  • the current forwarding scheme can only choose a route based on the destination address of the data packet.
  • the forwarding scheme is still adopted, all packets belonging to the same destination address will follow the same routing path.
  • the advantages of multipath cannot be fully used, and the air interface capability of multipath cannot be obtained. Make the most of it.
  • This application provides a routing method, a node, and a computer storage medium, which can solve the problem that the multi-path cannot be fully utilized in a multi-path networking scenario based on the IAB L2 Relay architecture in the prior art.
  • a first aspect of the present application provides a routing method, where the method includes:
  • the IAB node before and after the integration of the front and back nodes obtains a data packet
  • the data packet includes an adaptive routing protocol header
  • the adaptive routing protocol header includes service indication information and an identity of the destination node
  • the destination node includes the destination IAB node or the destination IAB anchor point;
  • the IAB node determines a destination path from the data packet to the destination node according to the service instruction information and an identity of the destination node, and forwards the data packet according to the destination path.
  • the service indication information includes a service parameter
  • the service parameter is used to indicate a service quality of service QoS parameter of the data packet
  • the service parameter includes at least one of a service type, a service identifier, and a service level .
  • the routing table of the IAB node includes an address of a destination node, a first mapping relationship between a node identifier of a next-hop IAB node, and a service parameter; and the IAB node according to the service instruction information and the destination node Determining the target path from the data packet to the destination node includes:
  • the IAB determines the target path according to an address corresponding to the first mapping relationship, the service parameter, and an identifier of the destination node.
  • the first mapping relationship may be presented in the form of a routing table.
  • the determining, by the IAB, the target path according to the first mapping relationship, the service parameter, and an address corresponding to the identifier of the destination node includes:
  • the IAB node selects a path with a delay lower than a preset delay and a capacity lower than the first capacity according to the first mapping relationship as the target. path;
  • the IAB node selects a dedicated path as the target path according to the first mapping relationship
  • the IAB node selects a path having a capacity higher than a second capacity as the target path according to the first mapping relationship, and the first capacity Less than the second capacity.
  • the service indication information includes a cell identifier, and the cell identifier is used to indicate a cell to which a service corresponding to the data packet belongs.
  • the routing table of the IAB node includes the address of the destination node, the second mapping relationship between the node identifier of the next hop IAB node and the cell identifier; and the IAB node is based on the service instruction information and the destination node. Determining the target routing path of the data packet to the destination node includes:
  • the IAB determines the target path according to an address corresponding to the second mapping relationship, the cell identifier, and the destination node identifier.
  • the second mapping relationship may be presented in the form of a routing table.
  • the determining, by the IAB, the target path according to the address corresponding to the second mapping relationship, the cell identifier, and the destination node identifier includes:
  • the IAB node selects, as the target path, a path whose delay is lower than a preset delay and whose capacity is higher than a second capacity according to the second mapping relationship. For example, when the service instruction information contained in the Adapt header is a short time delay, routing information such as the next hop IAB node of the data packet can be determined according to the second mapping relationship, and then the destination routing path of the data packet can be determined.
  • the second aspect of the present application provides an integrated backhaul node, which has a function of implementing a method corresponding to the routing provided by the first aspect.
  • the functions may be implemented by hardware, and may also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware.
  • the IAB includes:
  • a transceiver module for obtaining a data packet includes an adaptive routing protocol header, the adaptive routing protocol header includes service indication information and an identifier of a destination node, and the destination node includes a destination IAB node or a destination IAB anchor point ;
  • a processing module is configured to determine a target path from the data packet to the destination node according to the service instruction information, and forward the data packet according to the target path.
  • the service indication information includes a service parameter
  • the service parameter is used to indicate a service quality of service QoS parameter of the data packet
  • the service parameter includes at least one of a service type, a service identifier, and a service level .
  • the routing table of the IAB node includes an address of a destination node, a first mapping relationship between a node identifier of a next-hop IAB node, and a service parameter; the processing module is configured to:
  • the IAB determines the target path according to an address corresponding to the first mapping relationship, the service parameter, and an identifier of the destination node.
  • the processing module is used for:
  • the service type in the service parameter is delay-sensitive service information, selecting a path with a delay lower than a preset delay and a capacity lower than the first capacity according to the first mapping relationship as the target path;
  • a dedicated path is selected as the target path according to the first mapping relationship
  • a path with a capacity higher than a second capacity is selected as the target path according to the first mapping relationship, and the first capacity is smaller than the first capacity. Two capacity.
  • the service indication information includes a cell identifier, and the cell identifier is used to indicate a cell to which a service corresponding to the data packet belongs.
  • the routing table of the IAB node includes an address of a destination node, a second mapping relationship between a node identifier of a next-hop IAB node and a cell identifier, and the processing module is configured to:
  • the processing module is used for:
  • a path with a delay lower than a preset delay and a capacity higher than a second capacity is selected as the target path according to the second mapping relationship.
  • the present application further provides a communication node, where the communication node includes:
  • At least one connected processor, memory, and transceiver At least one connected processor, memory, and transceiver;
  • the memory is used to store program code, and the processor is used to call the program code in the memory to execute the method performed by the IAB in the foregoing first aspect.
  • the transceiver may also be replaced by a receiver and a transmitter, and may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the memory may be integrated in the processor, or may be provided separately from the processor.
  • Another aspect of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the method described in the first aspect above.
  • a further aspect of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to perform the method described in the first aspect above.
  • the IAB node adds fields such as service type and cell ID to the routing information of the Adapt layer, and clarifies the characteristics of each data packet from multiple dimensions, so that multiple multiple For a data packet with a destination address, the IAB node can determine the destination path of each data packet to the destination node according to the service instruction information and the identity of the destination node, that is, the adaptive routing path is determined for these data packets, which effectively improves the networking Multi-path transmission capability.
  • FIG. 1a is a schematic diagram of an IAB L2 Relay architecture in an embodiment of the present application.
  • FIG. 1b is a schematic diagram of a multi-path networking architecture according to an embodiment of the present application.
  • FIG. 1c is a schematic diagram of a routing and forwarding protocol based on the IAB L2 Relay architecture in the embodiment of the present application;
  • FIG. 2 is a flowchart of a routing method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an Adapt header in an embodiment of the present application.
  • 4a is a schematic diagram of a routing table in an embodiment of the present application.
  • 4b is a schematic diagram of a routing table in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an IAB node according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication node according to an embodiment of the present application.
  • the division of the modules in this application is only a logical division. In actual applications, there can be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual The coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between the modules may be electrical or other similar forms, which are not limited in this application.
  • the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed into multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the purpose of the solution in the embodiment of the present application.
  • FIG. 1a is a schematic diagram of the IAB L2 Relay architecture in the embodiment of the present application.
  • FIG. 1b is a schematic diagram of the multipath networking architecture of the IAB L2 Relay architecture in the embodiment of the present application, which includes an anchor new radio base station (donor new radio base node, DgNB) and three relay base stations (Relay), that is, Relay1, Relay2, and Relay3.
  • This multi-path networking architecture can support multi-hop coverage.
  • the Adapt header is modified according to the routing and forwarding protocol based on the IAB L2 Relay architecture shown in FIG. 1c. For example, it can be included in the Adapt layer routing information. Add fields such as service type and cell ID. Intermediate IAB nodes route data under the same IAB node for different service types + addresses + cell IDs. By determining routing paths from multiple dimensions, the multi-connection networking capability can be fully utilized.
  • the method includes:
  • the IAB node before and after the integration obtains a data packet.
  • the data packet includes an adaptive routing protocol (Adapt) header, the adaptive routing protocol header includes service indication information and an identifier of a destination node, and the destination node includes a destination IAB node or a destination IAB anchor point.
  • Adapt adaptive routing protocol
  • the service indication information includes service parameters, and the service parameters are used to indicate service quality of service (QoS) parameters of a data packet, and the service parameters include at least one of a service type, a service identifier, and a service level.
  • the service indication information includes a cell identifier, and the cell identifier is used to indicate a cell to which a service corresponding to the data packet belongs.
  • the Adapt header in FIG. 3a includes an IAB node identifier and service parameters
  • the Adapt header in FIG. 3b includes an IAB node identifier and a cell identifier.
  • the IAB node determines a target path from the data packet to the destination node according to the service instruction information and an identifier of a destination node.
  • the IAB node forwards the data packet according to the target path.
  • the IAB node adds fields such as service type and cell ID to the routing information of the Adapt layer, and clarifies the characteristics of each data packet from multiple dimensions, so that when receiving When there are multiple data packets that belong to the same destination address, the IAB node can determine the destination path of each data packet to the destination node according to the service instruction information and the destination node's identification, that is, to determine the appropriate routing path for these data packets, which effectively improves Multi-path transmission capability of the network. For example, an IAB node routes data under the same IAB node for different service types + addresses + cell IDs, instead of routing based on the destination node only, giving full play to the multi-connection networking capability.
  • the routing table of the IAB node when the service instruction information includes service parameters, includes the address of the destination node, the node identifier of the next-hop IAB node, and the first parameter of the service parameter.
  • a mapping relationship. The determining, by the IAB node, the destination path of the data packet to the destination node according to the service instruction information and the identity of the destination node includes:
  • the IAB determines the target path according to an address corresponding to the first mapping relationship, the service parameter, and an identifier of the destination node.
  • the first mapping relationship may be presented in the form of a routing table.
  • FIG. 4a is a schematic diagram of a routing table of an IAB node.
  • the relationship between IAB node 1, short delay, and IAB node 3 Mapping relationship When the service instruction information contained in the Adapt header is a short time delay, according to the routing table shown in Figure 4a, routing information such as the next hop IAB node of the data packet can be determined, and then the destination of the data packet can be determined. The routing path.
  • the determining, by the IAB, the target path according to the first mapping relationship, the service parameter, and an address corresponding to the identifier of the destination node includes:
  • the IAB node selects a path with a delay lower than a preset delay and a capacity lower than the first capacity according to the first mapping relationship as the target. path;
  • the IAB node selects a dedicated path as the target path according to the first mapping relationship
  • the IAB node selects a path having a capacity higher than a second capacity as the target path according to the first mapping relationship, and the first capacity Less than the second capacity.
  • the routing table of the IAB node when the service indication information includes a cell identifier, includes an address of a destination node, a node identifier of a next hop IAB node, and a first Second mapping relationship.
  • the determining, by the IAB node, the destination routing path of the data packet to the destination node according to the service instruction information and the identity of the destination node includes:
  • the IAB determines the target path according to an address corresponding to the second mapping relationship, the cell identifier, and the destination node identifier.
  • the second mapping relationship may be presented in the form of a routing table.
  • FIG. 4b is a schematic diagram of the routing table of an IAB node.
  • the mapping between IAB node 1, cell1, ID, and IAB node 3 Relationship, when the service instruction information contained in the Adapt header is a short time delay according to the routing table shown in FIG. 4b, routing information such as the next hop IAB node of the packet can be determined, and then the destination route of the packet can be determined path.
  • the determining, by the IAB, the destination path according to the second mapping relationship, the cell identifier, and an address corresponding to the destination node identifier includes:
  • the IAB node selects, as the target path, a path whose delay is lower than a preset delay and whose capacity is higher than a second capacity according to the second mapping relationship.
  • the foregoing describes a routing method in this application.
  • the following describes an IAB node that performs the above routing method.
  • the IAB includes:
  • a transceiver module for obtaining a data packet includes an adaptive routing protocol header, the adaptive routing protocol header includes service indication information and an identifier of a destination node, and the destination node includes a destination IAB node or a destination IAB anchor point ;
  • a processing module is configured to determine a target path from the data packet to the destination node according to the service instruction information, and forward the data packet according to the target path.
  • the processing module in the IAB node adds fields such as service type and cell ID to the routing information of the Adapt layer, and clarifies the characteristics of each data packet from multiple dimensions, so that the receiving and transmitting module receives multiple belonging to the same purpose
  • the processing module can determine the destination path of each data packet to the destination node according to the service instruction information and the destination node's identification, that is, to determine the appropriate routing path for these data packets, which effectively improves the multipath of the network. Transmission capacity.
  • the service indication information includes a service parameter
  • the service parameter is used to indicate a service quality of service QoS parameter of the data packet
  • the service parameter includes at least one of a service type, a service identifier, and a service level.
  • the routing table of the IAB node includes an address of a destination node, a first mapping relationship between a node identifier of a next-hop IAB node, and a service parameter; the processing module is configured to:
  • the IAB determines the target path according to an address corresponding to the first mapping relationship, the service parameter, and an identifier of the destination node.
  • processing module is configured to:
  • the service type in the service parameter is delay-sensitive service information, selecting a path with a delay lower than a preset delay and a capacity lower than the first capacity according to the first mapping relationship as the target path;
  • a dedicated path is selected as the target path according to the first mapping relationship
  • a path with a capacity higher than a second capacity is selected as the target path according to the first mapping relationship, and the first capacity is smaller than the first capacity. Two capacity.
  • the service indication information includes a cell identifier, and the cell identifier is used to indicate a cell to which a service corresponding to the data packet belongs.
  • the routing table of the IAB node includes an address of a destination node, a second mapping relationship between a node identifier of a next hop IAB node and a cell identifier; the processing module is configured to:
  • processing module is configured to:
  • a path with a delay lower than a preset delay and a capacity higher than a second capacity is selected as the target path according to the second mapping relationship.
  • FIG. 6 is a schematic structural diagram of a communication node that performs a routing method according to an embodiment of the present application, and may include at least one processor, at least one transceiver, memory, and at least one bus. Among them, at least one processor, at least one transceiver, and memory may be connected through a bus or other methods. In FIG. 6, the connection through a bus is taken as an example.
  • the memory may include read-only memory and random access memory, and provide instructions and data to the processor.
  • a part of the memory may also include a non-volatile random access memory (full English name: non-volatile random access memory, English abbreviation: NVRAM).
  • the memory stores an operating system and program instructions, executable modules or data structures, or a subset thereof, or an extended set thereof, where the program instructions may include various operation instructions for implementing various operations.
  • the operating system may include various system programs for implementing various basic tasks and processing hardware-based tasks.
  • the processor may control the operation of the communication node, and the processor may also be referred to as a central processing unit (full English name: central processing unit, English abbreviation: CPU).
  • the various components of the communication node are coupled together via a bus.
  • the bus may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses may be referred to as buses in FIG. 6.
  • the transceiver may also be replaced by a receiver and a transmitter, and may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the memory may be integrated in the processor, or may be provided separately from the processor.
  • the physical device corresponding to the transceiver module corresponding to FIG. 5 in this application may be a transceiver, and the physical device corresponding to the processing module may be a processor.
  • the devices shown in FIG. 5 may all have the structure shown in FIG. 6.
  • the processor and the transceiver in FIG. 6 implement the device embodiments corresponding to the foregoing devices.
  • the processing module and the transceiver module provide the same or similar functions.
  • the memory in FIG. 6 stores program code that the processor needs to call when executing the routing method described above.
  • the transceiver may also be replaced by a receiver and a transmitter, and may be the same or different physical entities.
  • transceivers When they are the same physical entity, they can be collectively referred to as transceivers.
  • the transceivers can be radio frequency (full English: radio frequency, English for short: RF) circuits.
  • the memory may be integrated in the processor, or may be provided separately from the processor.
  • the methods disclosed in the foregoing embodiments of the present application may be applied to the processor shown in FIG. 6 or implemented by the processor shown in FIG. 6.
  • the processor in FIG. 6 may call program instructions stored in a memory, and the processor specifically needs program code to be called when executing the routing method in the embodiment of the present application.
  • the memory in FIG. 6 stores the program code that the processor needs to call when executing the method of routing performed by the IAB described above.
  • the processor in FIG. 6 can call the program code in the memory to perform the following operations:
  • a data packet is obtained through the transceiver in FIG. 6, the data packet includes an adaptive routing protocol header, the adaptive routing protocol header includes service indication information and an identifier of a destination node, and the destination node includes a destination IAB node or a destination IAB Anchor point
  • the present application also provides a computer storage medium, which stores a program, and when the program is executed, the program includes a part or all of the steps in the method in which the IAB node or the communication node performs the routing.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the modules is only a logical function division.
  • multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, and may be electrical, mechanical or other forms.
  • the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, which may be located in one place, or may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist separately physically, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software functional modules. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the computer program product includes one or more computer instructions.
  • 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 from a website site, a computer, a server, or a data center. Transmission via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • wired such as coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (Solid State Disk (SSD)), and the like.

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Abstract

本申请提供了一种路由的方法、节点及计算机存储介质，该方法包括：集成前后传节点IAB节点获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。通过采用本方案，能够充分发挥多连接组网能力。

Description

一种路由的方法、节点及计算机存储介质 技术领域
本申请涉及通信技术领域，尤其涉及的是一种路由的方法、节点及计算机存储介质。
背景技术
集成前后传(integrated access and backhual，IAB)是一种集成接入网络和后传网络的技术。在缺乏光纤回传网络的情况下，复用接入网的无线设备和频谱，利用无线进行回传，从而起到灵活快速加站的目的。在IAB L2 Relay架构下的路由和转发方案中，修改IAB node之间以及IAB node和IAB之间的空口协议层，相对传统的空口协议层增加Adapt层用于实现路由功能。自适应路由协议(adaptive routingprotocol based on directional transmission,ARPBDT)的Adapt协议包头包含数据包的目的IAB节点标识(node Identify，node ID)，或者包括目的IAB锚点标识(donor identity，donor ID)，其余内容待定。IAB node维护本地的路由表。对于上行数据包，IAB node根据目的IAB donor ID决策下一跳的IAB node ID。对于下行数据包IAB node根据目的IAB node ID决策下一跳的IAB node ID。上行数据，Adapt头由IAB access node填写，对于下行数据，Adapt头由IAB donor填写。
但是，目前的转发方案只能根据数据包的目的地址来选择路由。当存在多条路由路径可达时，如果仍然采用该转发方案，则会导致属于相同目的地址的数据包全部走同一条路由路径，无法充分利用多路径的优势，导致多路径的空口能力无法得到充分的发挥。
发明内容
本申请提供了一种路由的方法、节点及计算机存储介质，能够解决现有技术中基于IAB L2 Relay架构的多路径组网场景下无法充分利用多路径的问题。
本申请第一方面提供一种路由的方法，所述方法包括：
集成前后传节点IAB节点获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；
所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
一种可能的设计中，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。
一种可能的设计中，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系；所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，包括：
所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。第一映射关系可以是以路由表的形式呈现。
一种可能的设计中，所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径，包括：
当所述业务参数中的业务类型为时延敏感业务信息时，所述IAB节点根据所述第一映 射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
或者，当所述业务参数指示的业务等级高于预设等级时，所述IAB节点根据所述第一映射关系选择专用路径作为所述目标路径；
或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，所述IAB节点根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
一种可能的设计中，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
一种可能的设计中，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系；所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路由路径，包括：
所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。第二映射关系可以是以路由表的形式呈现。
一种可能的设计中，所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径，包括：
当所述小区标识为预定义小区时，所述IAB节点根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。例如，当Adapt头中包含的业务指示信息为短时延时，根据该第二映射关系可以确定出该数据包的下一跳IAB节点等路由信息，进而确定该数据包的目标路由路径。
本申请第二方面提供一种集成前后传节点，具有实现对应于上述第一方面提供的路由的方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块，所述模块可以是软件和/或硬件。
一种可能的设计中，所述IAB包括：
收发模块，用于获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；
处理模块，用于根据所述业务指示信息确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
一种可能的设计中，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。
一种可能的设计中，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系；所述处理模块用于：
所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。
一种可能的设计中，所述处理模块用于：
当所述业务参数中的业务类型为时延敏感业务信息时，根据所述第一映射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
或者，当所述业务参数指示的业务等级高于预设等级时，根据所述第一映射关系选择专用路径作为所述目标路径；
或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
一种可能的设计中，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
一种可能的设计中，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系；所述处理模块用于：
根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。
一种可能的设计中，所述处理模块用于：
当所述小区标识为预定义小区时，根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。
第三方面，本申请还提供一种通信节点，所述通信节点包括：
至少一个连接的处理器、存储器和收发器；
其中，所述存储器用于存储程序代码，所述处理器用于调用所述存储器中的程序代码来执行前述第一方面中由IAB执行的方法。该收发器也可以用接收器和发送器代替，可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为收发器。所述存储器可以集成在所述处理器中，也可以与所述处理器分开设置。
本申请的又一方面提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
本申请又一方面提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
相较于现有技术，本申请提供的方案中，IAB节点在Adapt层的路由信息中增加业务类型、小区ID等字段，从多个维度明确各个数据包的特性，使得在接收到多个同属一个目的地址的数据包时，IAB节点能根据业务指示信息和目的节点的标识确定各个数据包到目的节点的目标路径，即分别为这些数据包决策出适配的路由路径，有效提高组网的多路径传输能力。
附图说明
图1a为本申请实施例中IAB L2 Relay架构的一种示意图图；
图1b为本申请实施例中多路径组网架构的一种示意图；
图1c为本申请实施例中基于IAB L2 Relay架构的路由和转发协议的一种示意图；
图2为本申请实施例中路由的方法的一种流程图；
图3为本申请实施例中Adapt头的一种示意图；
图4a为本申请实施例中路由表的一种示意图；
图4b为本申请实施例中路由表的一种示意图；
图5为本申请实施例中IAB节点的一种结构示意图；
图6为本申请实施例中通信节点的一种结构示意图。
具体实施方式
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块，本申请中所出现的模块的划分，仅仅是一种逻辑上的划分，实际应用中实现时可以有另外的划分方式，例如多个模块可以结合成或集成在另一个系统中，或一些特征可以忽略，或不执行，另外，所显示的或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，模块之间的间接耦合或通信连接可以是电性或其他类似的形式，本申请中均不作限定。并且，作为分离部件说明的模块或子模块可以是也可以不是物理上的分离，可以是也可以不是物理模块，或者可以分布到多个电路模块中，可以根据实际的需要选择其中的部分或全部模块来实现本申请实施例方案的目的。
本申请实施例提供了一种路由的方法、节点及计算机存储介质，用于无线通信技术领域，能够解决现有技术中现有机制中基于IAB L2 Relay架构的多路径组网场景下无法充分利用多路径的问题。图1a为本申请实施例中IAB L2 Relay架构的一种示意图。图1b为本申请实施例中IAB L2 Relay架构的多路径组网架构的一种示意图，其包括锚点新无线基站(donor new radio node base，DgNB)和3个中继基站(Relay)，即Relay1、Relay2和Relay3，该多路径组网架构能够支持多跳覆盖。本申请实施例中，IAB节点接收到来自终端设备的数据包后，根据图1c所示的基于IAB L2 Relay架构的路由和转发协议，对Adapt头进行修改，例如，可在Adapt层路由信息中增加业务类型、小区ID等字段。中间IAB节点对于同一IAB节点下的数据针对不同业务类型+地址+小区ID来进行路由，通过从多个维度决策路由路径，能够充分发挥多连接组网能力。
请参照图2，以下介绍对本申请提供的一种路由的方法，所述方法包括：
201、集成前后传节点IAB节点获取数据包。
所述数据包包括自适应路由协议(Adapt)包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点。
在一些实施方式中，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。另一些实施方式中，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
例如图3所示，图3的a中Adapt头中包括IAB节点标识和业务参数，图3的b中Adapt头中包括IAB节点标识和小区标识。
202、所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径。
203、所述IAB节点根据所述目标路径转发所述数据包。
与现有机制相比，本申请实施例中，IAB节点基于图1c，在Adapt层的路由信息中增 加业务类型、小区ID等字段，从多个维度明确各个数据包的特性，使得在接收到多个同属一个目的地址的数据包时，IAB节点能根据业务指示信息和目的节点的标识确定各个数据包到目的节点的目标路径，即分别为这些数据包决策出适配的路由路径，有效提高组网的多路径传输能力。例如，IAB节点对于同一IAB节点下的数据针对不同业务类型+地址+小区ID来进行路由，而不仅仅根据目的节点来来路由，充分发挥多连接组网能力。
可选的，在本申请的一些实施例中，当所述业务指示信息包括业务参数时，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系。所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，包括：
所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。一些实施方式中，第一映射关系可以是以路由表的形式呈现，例如图4a为IAB节点的路由表的一种示意图，图4a中，IAB节点1、短时延与IAB节点3之间的映射关系，当Adapt头中包含的业务指示信息为短时延时，根据该图4a所示的路由表可以确定出该数据包的下一跳IAB节点等路由信息，进而确定该数据包的目标路由路径。
一些实施方式中，所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径，包括：
当所述业务参数中的业务类型为时延敏感业务信息时，所述IAB节点根据所述第一映射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
或者，当所述业务参数指示的业务等级高于预设等级时，所述IAB节点根据所述第一映射关系选择专用路径作为所述目标路径；
或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，所述IAB节点根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
可选的，在本申请的一些实施例中，当所述业务指示信息包括小区标识时，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系。所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路由路径，包括：
所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。一些实施方式中，第二映射关系可以是以路由表的形式呈现，例如图4b为IAB节点的路由表的一种示意图，图4b中，IAB节点1、cell1 ID与IAB节点3之间的映射关系，当Adapt头中包含的业务指示信息为短时延时，根据该图4b所示的路由表可以确定出该数据包的下一跳IAB节点等路由信息，进而确定该数据包的目标路由路径。
在一些实施方式中，所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径，包括：
当所述小区标识为预定义小区时，所述IAB节点根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。
上述所介绍的各类特征也同样适用于本申请中的图5和图6所对应的实施例，后续类似之处不再赘述。
以上对本申请中一种路由的方法进行说明，以下介绍执行上述路由的方法的IAB节点。该IAB包括：
收发模块，用于获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；
处理模块，用于根据所述业务指示信息确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
本申请实施例中，IAB节点中的处理模块在Adapt层的路由信息中增加业务类型、小区ID等字段，从多个维度明确各个数据包的特性，使得在收发模块接收到多个同属一个目的地址的数据包时，处理模块能根据业务指示信息和目的节点的标识确定各个数据包到目的节点的目标路径，即分别为这些数据包决策出适配的路由路径，有效提高组网的多路径传输能力。
可选的，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。
可选的，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系；所述处理模块用于：
所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。
可选的，所述处理模块用于：
当所述业务参数中的业务类型为时延敏感业务信息时，根据所述第一映射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
或者，当所述业务参数指示的业务等级高于预设等级时，根据所述第一映射关系选择专用路径作为所述目标路径；
或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
可选的，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
可选的，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系；所述处理模块用于：
根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。
可选的，所述处理模块用于：
当所述小区标识为预定义小区时，根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。
上面从模块化功能实体的角度分别介绍了本申请实施例中的IAB节点，下面从硬件处理的角度分别介绍本申请实施例中的IAB节点。图6为本申请实施例提供的执行路由的方法的通信节点的一种结构示意图，其中，可包括至少一个处理器、至少一个收发器、存储器、至少一个总线。其中，至少一个处理器、至少一个收发器和存储器可通过总线 或其它方式连接，其中，图6中以通过总线连接为例。
存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器(英文全称：non-volatile random access memory，英文缩写：NVRAM)。存储器存储有操作系统和程序指令、可执行模块或者数据结构，或者它们的子集，或者它们的扩展集，其中，程序指令可包括各种操作指令，用于实现各种操作。操作系统可包括各种系统程序，用于实现各种基础任务以及处理基于硬件的任务。
处理器可以控制该通信节点的操作，处理器还可以称为中央处理单元(英文全称：central processing unit，英文简称：CPU)。具体的应用中，通信节点的各个组件通过总线耦合在一起，其中总线除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图6中将各种总线都可称为总线。
其中，该收发器也可以用接收器和发送器代替，可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为收发器。所述存储器可以集成在所述处理器中，也可以与所述处理器分开设置。
需要说明的是，在本申请图5对应的收发模块对应的实体设备可以为收发器，处理模块对应的实体设备可以为处理器。图5所示的装置均可以具有如图6所示的结构，当其中一种装置具有如图6所示的结构时，图6中的处理器和收发器实现前述对应该装置的装置实施例提供的处理模块和收发模块相同或相似的功能，图6中的存储器存储处理器执行上述路由的方法时需要调用的程序代码。其中，该收发器也可以用接收器和发送器代替，可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为收发器，例如该收发器可以为射频(英文全称：radio frequency，英文简称：RF)电路。所述存储器可以集成在所述处理器中，也可以与所述处理器分开设置。
上述本申请各实施例揭示的方法可以应用于图6所示的处理器中，或者由图6所示的处理器实现。例如，在一些实施方式中，图6中的处理器可通过调用存储器存储的程序指令，上述处理器具体执行本申请实施例中的路由的方法时需要调用的程序代码。
例如，当通信节点具有如图6所示的结构时，图6中的存储器存储处理器执行上述由IAB执行路由的方法时需要调用的程序代码。具体来说，图6中的处理器能够调用存储器中的程序代码执行以下操作：
通过图6中的收发器获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；
根据所述业务指示信息确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
本申请还提供一种计算机存储介质，该介质存储有程序，该程序执行时包括上述IAB节点或通信节点执行上述路由的方法中的部分或者全部步骤。
上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统， 装置和模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或模块的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
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实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
以上对本申请所提供的技术方案进行了详细介绍，本申请中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用
范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (16)

  1. 一种路由的方法，其特征在于，所述方法包括：
    集成前后传节点IAB节点获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB锚点；
    所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
  2. 根据权利要求1所述的方法，其特征在于，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。
  3. 根据权利要求2所述的方法，其特征在于，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系；所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路径，包括：
    所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。
  4. 根据权利要求3所述的方法，其特征在于，所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径，包括：
    当所述业务参数中的业务类型为时延敏感业务信息时，所述IAB节点根据所述第一映射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
    或者，当所述业务参数指示的业务等级高于预设等级时，所述IAB节点根据所述第一映射关系选择专用路径作为所述目标路径；
    或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，所述IAB节点根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
  5. 根据权利要求1所述的方法，其特征在于，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
  6. 根据权利要求5所述的方法，其特征在于，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系；所述IAB节点根据所述业务指示信息和目的节点的标识确定所述数据包到所述目的节点的目标路由路径，包括：
    所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。
  7. 根据权利要求6所述的方法，其特征在于，所述IAB根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径，包括：
    当所述小区标识为预定义小区时，所述IAB节点根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。
  8. 一种集成前后传节点IAB，其特征在于，所述IAB包括：
    收发模块，用于获取数据包，所述数据包包括自适应路由协议包头，所述自适应路由协议包头包括业务指示信息和目的节点的标识，所述目的节点包括目的IAB节点或目的IAB 锚点；
    处理模块，用于根据所述业务指示信息确定所述数据包到所述目的节点的目标路径，根据所述目标路径转发所述数据包。
  9. 根据权利要求8所述的IAB，其特征在于，所述业务指示信息包括业务参数，所述业务参数用于指示数据包的业务服务质量QoS参数，所述业务参数包括业务类型、业务标识、业务等级中的至少一项。
  10. 根据权利要求9所述的IAB，其特征在于，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与业务参数的第一映射关系；所述处理模块用于：
    所述IAB根据所述第一映射关系、所述业务参数和所述目的节点的标识对应的地址确定所述目标路径。
  11. 根据权利要求10所述的IAB，其特征在于，所述处理模块用于：
    当所述业务参数中的业务类型为时延敏感业务信息时，根据所述第一映射关系选择时延低于预设时延且容量低于第一容量的路径作为所述目标路径；
    或者，当所述业务参数指示的业务等级高于预设等级时，根据所述第一映射关系选择专用路径作为所述目标路径；
    或者，当所述业务参数中的业务类型为吞吐率敏感业务信息时，根据所述第一映射关系选择容量高于第二容量的路径作为所述目标路径，所述第一容量小于所述第二容量。
  12. 根据权利要求8所述的IAB，其特征在于，所述业务指示信息包括小区标识，所述小区标识用于指示所述数据包对应的业务所属的小区。
  13. 根据权利要求12所述的IAB，其特征在于，所述IAB节点的路由表包括目的节点的地址、下一跳IAB节点的节点标识与小区标识的第二映射关系；所述处理模块用于：
    根据所述第二映射关系、所述小区标识和所述目的节点的标识对应的地址确定所述目标路径。
  14. 根据权利要求13所述的IAB，其特征在于，所述处理模块用于：
    当所述小区标识为预定义小区时，根据所述第二映射关系选择时延低于预设时延且容量高于第二容量的路径作为所述目标路径。
  15. 一种通信节点，其特征在于，所述通信节点包括：
    至少一个处理器、存储器和收发器；
    其中，所述存储器用于存储程序代码，所述处理器用于调用所述存储器中的程序代码来执行如权利要求1至7任一项所述的方法。
  16. 一种计算机可读存储介质，其特征在于，其包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-7任一所述的方法。
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