WO2023011345A1 - 数据路由方法、装置、节点及存储介质 - Google Patents

数据路由方法、装置、节点及存储介质 Download PDF

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Publication number
WO2023011345A1
WO2023011345A1 PCT/CN2022/108946 CN2022108946W WO2023011345A1 WO 2023011345 A1 WO2023011345 A1 WO 2023011345A1 CN 2022108946 W CN2022108946 W CN 2022108946W WO 2023011345 A1 WO2023011345 A1 WO 2023011345A1
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Prior art keywords
node
data packet
information
bap
destination
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PCT/CN2022/108946
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English (en)
French (fr)
Inventor
文鸣
刘进华
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维沃移动通信有限公司
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Priority to EP22852058.1A priority Critical patent/EP4383669A1/en
Publication of WO2023011345A1 publication Critical patent/WO2023011345A1/zh
Priority to US18/430,463 priority patent/US20240205794A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/32Connectivity information management, e.g. connectivity discovery or connectivity update for defining a routing cluster membership
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/02Topology update or discovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/02Topology update or discovery
    • H04L45/04Interdomain routing, e.g. hierarchical routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • H04L45/745Address table lookup; Address filtering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/28Connectivity information management, e.g. connectivity discovery or connectivity update for reactive routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/34Modification of an existing route
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks

Definitions

  • the present application belongs to the technical field of communication, and in particular relates to a data routing method, device, node and storage medium.
  • the second topology needs to configure the corresponding routing map for the data packet.
  • the data is routed to the border node, and then the border node performs the header of the data packet.
  • the data is then routed by the border nodes to nodes in the second topology.
  • Embodiments of the present application provide a data routing method, device, node, and storage medium, which can solve the problems of high complexity of data routing and excessive resource occupation.
  • a data routing method includes:
  • the border node receives the data packet in the first topology
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet;
  • the border node When the destination node of the data packet belongs to the second topology, the border node rewrites the header of the data packet based on the first information
  • the border node transmits the rewritten data packet to the destination node in the second topology.
  • a data routing method includes:
  • the generating node in the first topology generates a data packet, the header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • the generating node sends the data packet to the border node.
  • a data routing device in a third aspect, includes:
  • a first receiving module configured to receive data packets in the first topology
  • a first determining module configured to determine the ownership of the destination node of the data packet based on the first information in the header of the data packet;
  • a first rewriting module configured to rewrite the packet header of the data packet based on the first information when the destination node of the data packet belongs to the second topology
  • a first transmission module configured to transmit the rewritten data packet to the destination node in the second topology.
  • a data routing device which includes:
  • a first generating module configured to generate a data packet in the first topology, the header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • a first sending module configured to send the data packet to the border node.
  • a boundary node includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
  • the program or instruction is executed by the processor When executed, the steps of the method described in the first aspect are realized.
  • a border node including a processor and a communication interface, where the communication interface is used for:
  • the processor is used to:
  • the border node In the case of determining that the destination node of the data packet belongs to the second topology, the border node rewrites the header of the data packet based on the first information
  • the communication interface is also used for:
  • the border node transmits the rewritten data packet to the destination node in the second topology.
  • a generation node in a seventh aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the processor When executed, the steps of the method described in the second aspect are realized.
  • a generation node including a processor and a communication interface, wherein the processor is used for:
  • the packet header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • the communication interface is used for:
  • a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the second aspect.
  • a chip in a tenth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect , or implement the method described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first The steps of the method described in the first aspect, or the steps of the method described in the second aspect.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • FIG. 1 shows a structural diagram of a wireless communication system to which an embodiment of the present application is applicable
  • Fig. 2 is a schematic diagram of the IAB system provided by the embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of the CU-DU of the IAB system provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of a protocol stack provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a cross-topology structure provided by an embodiment of the present application.
  • Fig. 6 is one of the schematic flow charts of the data routing method provided by the embodiment of the present application.
  • Fig. 7 is the schematic diagram of the BAP Data PDU format that the embodiment of the present application provides.
  • FIG. 8 is the second schematic flow diagram of the data routing method provided by the embodiment of the present application.
  • FIG. 9 is one of the structural schematic diagrams of the data routing device provided by the embodiment of the present application.
  • FIG. 10 is the second structural schematic diagram of the data routing device provided by the embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a boundary node provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a generation node provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, that is, A and/or B means including only A, only B, and both A and B.
  • the character " /" generally means that the associated objects before and after are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • FIG. 1 shows a structural diagram of a wireless communication system to which this embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robots, wearable devices (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture etc.) and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • the integrated access backhaul (IAB) system is a technology in the communication system.
  • Fig. 2 is a schematic diagram of the IAB system provided by the embodiment of the present application.
  • an IAB node includes a distributed unit (Distributed Unit, DU) functional part and a mobile terminal (Mobile Termination, MT) functional part.
  • DU Distributed Unit
  • MT Mobile Termination
  • an access node (IAB node) can find an upstream access point (parent IAB node), and establish a wireless connection with the DU of the upstream access point. This wireless connection is called a backhaul link (backhaul link) .
  • backhaul link backhaul link
  • a self-backhaul topology includes an IAB host node (donor IAB node) (or called IAB donor), and the donor IAB node has a directly connected wired transmission network.
  • donor IAB node or called IAB donor
  • the IAB system includes a centralized unit-distributed unit (Centralized Unit-Distributed Unit, CU-DU);
  • Fig. 3 is a schematic structural diagram of the CU-DU of the IAB system provided by the embodiment of the present application, as shown in Fig. 3 , in an automatic In the backhaul topology, the DUs of all IAB nodes are connected to a CU node, and this node configures the DUs.
  • the CU configures the MT through the Radio Resource Control (RRC) protocol.
  • RRC Radio Resource Control
  • Donor IAB node does not have MT functional part.
  • the introduction of the IAB system can solve the situation that the wired transmission network is not properly deployed when the access points are densely deployed. That is, when there is no wired transmission network, the access point can rely on wireless backhaul.
  • the wireless link between IAB nodes is called Backhaul link (BH link), and the BH link is configured with a backhaul radio link control channel (Backhaul RLC channel, BH RLC channel) for wireless backhaul.
  • Backhaul RLC channel Backhaul RLC channel
  • Fig. 4 is a schematic diagram of the protocol stack provided by the embodiment of the present application. As shown in Fig. 4, a backhaul adaptation protocol layer (backhaul adaptation protocol, BAP) is also introduced in the IAB, which is used for forwarding data and routing of data packets , flow control, etc.
  • BAP backhaul adaptation protocol
  • the boundary node (boundary IAB-node) can carry out the BAP header of the data packet based on the BAP routing ID1 in the first topology structure carried in the packet header (BAP header) of the original data packet rewrite(
  • FIG. 5 is a schematic diagram of the cross-topology structure provided by the embodiment of the present application.
  • the boundary node refers to: if the DU of an IAB node and the DU of its parent node are not terminated to the same CU If , this node is considered as a boundary node. That is to say, the DU of this node and the DU of its parent node are not controlled by the same CU, but the MT of the boundary IAB node is connected to different CUs at the same time. For example the IAB3 node.
  • the first topology refers to: the topological fragment before the border node that the data packet passes through during transmission.
  • the downlink data generated at CU2 the solid line part on the right side of the figure is the first topology; if the uplink data generated by IAB4 needs to be sent to CU2, then the dotted line part composed of all dots is the first topology structure.
  • the second topology refers to the topological fragment after the border node that the data packet passes through during transmission.
  • the dotted line part composed of dots is the first topology; if the uplink data generated by IAB4 needs to be sent to CU2, then the solid line part on the right side of the figure is the first topology structure.
  • BAP header re-writing if the CU2 node helps the CU1 node to route the data, the data needs to be delivered to the IAB4 node, so when passing through the IAB3 node, BAP of the data is required The header is re-written.
  • boundary node selects another Py of the second topology based on the Px of the first topology, the following defects exist:
  • the boundary node needs to maintain a complex BAP header re-writing table, and each Px in the table needs to have a separate entry for (Ay, Py).
  • CU1 needs to maintain a complex BAP header re-writing list for each border node, which increases the complexity of border node operations Spend;
  • Fig. 6 is one of the flow diagrams of the data routing method provided by the embodiment of the present application. As shown in Fig. 6, the method includes the following steps:
  • Step 600 the border node receives the data packet in the first topology
  • Step 610 the border node determines the ownership of the destination node of the data packet based on the first information in the header of the data packet;
  • Step 620 when the destination node of the data packet belongs to the second topology, the border node rewrites the header of the data packet based on the first information
  • Step 630 the border node transmits the rewritten data packet to the destination node in the second topology.
  • the data packets in the first topology are generated by generation nodes in the first topology
  • the packet header of the data packet in the first topology structure includes first information, which can be used by the border node to determine the attribution of the destination node of the data packet, that is, used by the border node to determine the purpose of the data packet Whether the node belongs to the second topology, that is, it can be used by the border node to distinguish whether the data packet needs to be delivered to the upper layer of the border node, or needs to be rewritten (BAP header re-writing) at the border node;
  • the border node after the border node receives the data packet in the first topology, it can judge whether the destination node of the data packet belongs to the second topology based on the first information in the packet header of the data packet, that is, determine whether the data packet Whether it needs to be submitted to the upper layer of the border node, or the packet header needs to be rewritten at the border node;
  • the border node may rewrite the packet header of the data packet based on the first information, and The rewritten data packet is transmitted to the destination node, so that the data packet can be effectively transmitted in the second topology.
  • the destination IAB node is the destination node.
  • the rewriting (re-writing) of the data packet header may also be referred to as the rewriting of the data packet header.
  • the border node can route the BAP header of the data packet under the first topology when it is determined that the destination node of the data packet belongs to the second topology ID rewriting (re-writing) is changed to the routing ID under the second topology, so that the data packet can be routed from the first topology to the second topology through the border node, and the load- The purpose of balancing.
  • the boundary node judges whether the destination node of the data packet belongs to the second topology based on the first information in the header of the data packet in the first topology; and determines that the destination node of the data packet belongs to the second topology In the case of a topological structure, based on the first information, the header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the header from the received data packet Find out whether the data needs to be routed to the second topology structure, reduce the difficulty of data routing, and save resources.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, including:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the first BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the first destination node information group includes the first destination address of the destination node in the second topology and the first PATH ID, where the first PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the border node may determine the destination node of the data packet according to the return adaptation protocol layer destination address (destination BAP address, which may also be referred to as the BAP destination address) in the first information. Attribution, that is, to distinguish whether header rewriting is required.
  • the border node can match the BAP destination address in the first information with the address of the border node, and if it is found that the BAP destination address in the first information is the same as the first virtual address of the border node, it can be determined that the data packet
  • the first BAP virtual address can be a preset virtual address
  • the first BAP virtual address may correspond to the first destination node information group
  • the correspondence between the first BAP virtual address and the first destination node information group may be preset
  • the border node can be mapped to the first destination node information group based on the first BAP virtual address, and then determine the first destination address of the destination node in the second topology, and the first PATH ID, that is, the first destination node in the second topology A routing path from the border node to the destination node.
  • the border node can be based on the BAP Whether the BAP destination address carried in the PDU is the same as the first BAP virtual address, judge whether the data packet needs cross-topology routing, and if so, then it can be determined based on the BAP destination address carried in the BAP PDU that the PDU corresponds to the second topology. BAP routing ID, and rewrite the BAP routing ID into the header of the BAP PDU, and transmit it in the second topology.
  • the first information in the BAP header of the PDU for inter-donor routing may include a Destination BAP address, and the Destination BAP address may be the same as the first virtual address;
  • the border node can rewrite the BAP header according to the first BAP virtual address (the first logical/virtual BAP address); that is, replace the path ID with the BAP address, effectively reducing the complexity of data packet routing and save transmission resources.
  • the first BAP virtual address the first logical/virtual BAP address
  • the border node rewrites the header of the data packet based on the first information, including:
  • the border node determines a first destination node information group that has a mapping relationship with the first BAP virtual address based on the local second mapping table and the first BAP virtual address;
  • the second mapping table includes at least one second BAP virtual address and at least one second destination node information group, and there is a mapping between one said second BAP virtual address and one or more of said second destination node information groups
  • the first BAP virtual address is one of the at least one second BAP virtual address
  • the first destination node information The group is one of the at least one second destination node information group; the at least one second BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology is The border node is configured.
  • the CU under the first topology and/or the second topology can configure multiple logical/virtual BAP addresses for the border node, that is, the second BAP virtual address, and each second BAP virtual address is related to the second topology Corresponding to a group of second destination node information groups (Destination BAP address, Path ID) under the structure.
  • At least one second BAP virtual address and its corresponding one or more second destination node information groups, and the mapping relationship between them may be reflected in the second mapping table;
  • the second mapping table includes at least one second BAP virtual address, and each second BAP virtual address may correspond to one or more second destination node information groups;
  • the second mapping table may be preset and locally stored by the border node.
  • the border node determines that the data packet needs cross-topology routing according to the BAP destination address carried in the BAP PDU is the same as the first BAP virtual address, it can then determine that the PDU is at the first BAP address based on the BAP destination address carried in the BAP PDU.
  • the corresponding BAP routing ID under the two-topology structure can find the first destination node information group corresponding to the first BAP virtual address according to the second mapping table locally stored by the border node, and then determine the second destination node information group based on the first destination node information group
  • a BAP virtual address corresponds to the first destination address and the first PATH ID under the second topology structure, and these two IDs are rewritten in the BAP header of the data packet.
  • the border node can rewrite the BAP PDU after the header is rewritten to find the next hop node to submit data according to the legacy routing rules until it is routed to the destination node displayed in the BAP header.
  • the definition of the second mapping table may include at least one of the following:
  • the generation object of the second mapping table the CU under the first topology and/or the second topology;
  • the second mapping table may be as shown in Table 1 below, including at least one of the following:
  • the PATH ID under the second topology corresponding to the second virtual/logic BAP address of the border node, and the BAP address of the destination IAB node under the second topology corresponding to the second virtual/logic BAP address of the border node can be called is the second destination node information group.
  • Table 1 is only an example of the second mapping table, and does not serve as a limitation on the second mapping table and its contents.
  • the BAP address of the destination IAB node is the destination address of the destination node
  • the real BAP address of the border node is the real address of the border node
  • the boundary node can maintain a set of second mapping tables, and for the downlink, the boundary node can maintain another set of the same or different second mapping table; the generation node can maintain the corresponding The first mapping table, so as to realize that the first information in the header of the data packet generated by the generating node can be accurately indicated.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, further comprising:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, determine that the destination node of the data packet is the border node;
  • the method also includes:
  • the border node After the border node receives the data packet (BAP PDU), it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior ; If yes, it can be further judged whether the BAP address is a virtual address of the border node or a real address;
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, that is, it determines that the BAP destination address in the BAP header is the real address of the border node, that is, it means that the data is transmitted to Border node, instead of needing to be routed to another topology, the PDU can be delivered to the upper layer of the BAP layer of the border node after removing the header.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, including:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes first indication information, determine that the destination node of the data packet belongs to the first Two topology;
  • the first indication information is used to directly indicate that the data packet needs to be routed across topologies.
  • 1 bit i.e. first indication information
  • 1 bit may be used in the packet header to indicate that the PDU is a data packet (to-be-routed packet) that needs to be routed across topologies, and carries the second The path ID in the topology.
  • the border node may determine the attribution of the destination node of the data packet according to the first indication information in the first information, that is, to distinguish whether header rewriting (header rewriting) is required.
  • the first indication information is used to directly indicate that the destination node of the data packet belongs to the second topology, that is, the border node can directly determine the destination node of the data packet when it is determined that the first information includes the first indication information It belongs to the second topology, that is, header rewriting is required.
  • the border node will be based on the BAP
  • the first indication information carried in the PDU determines that the PDU needs to be header rewriting, and then determines the BAP routing ID corresponding to the data packet under the second topology, and rewrites the BAP routing ID into the header of the BAP PDU. Transmit in the second topology.
  • the embodiment of the present application omits the operation of the BAP Routing ID of the data packet generation node (donor-DU/access node) configuration that needs to be cross-topologically routed (to-be-routed data), effectively reducing the data packet Routing complexity, and save transmission resources.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • FIG. 7 is a schematic diagram of the BAP Data PDU format provided by the embodiment of the present application.
  • the first information in the BAP header of the PDU for inter-donor routing can also include the following information:
  • Destination BAP address the real BAP address of the border node under the first topology
  • Second PATH ID the PATH ID from the boundary node to the destination node in the second topology.
  • the first indication information used to indicate that the PDU needs to be rewritten (BAP header re-writing), that is, cross-topology routing is required; it can be a 1-bit indication in the data packet header (BAP header), such as using Among them, Rbit is used to indicate (such as the third Rbit), and 0 indicates that it needs to be performed; correspondingly, when BAP header re-writing is not required, it can be 1, which is the second indication information.
  • the border node rewrites the header of the data packet based on the first information, including:
  • the border node determines the second destination address of the destination node in the second topology based on the local third mapping table and the second PATH ID;
  • the third mapping table includes at least one third PATH ID, and at least one third destination address, and there is a mapping relationship between one said third PATH ID and one or more third destination addresses, and different third There is a mapping relationship between the PATH ID and different third destination addresses, the second PATH ID is one of the at least one third PATH ID, and the second destination address is one of the at least one third destination address .
  • the border node can further determine that in the third mapping table based on the second PATH ID in the first information and the third mapping table The second destination address that has a mapping relationship with the second PATH ID in the table, and then these two IDs can be rewritten in the BAP header of the PDU.
  • the border node can rewrite the BAP PDU after the header is rewritten to find the next hop node to submit data according to the legacy routing rules until it is routed to the destination node displayed in the BAP header.
  • the IAB nodes in the first topology can determine whether there is a first indication that the PDU needs to be cross-topologically routed (BAP header re-writing); if the first indication indicates If necessary, the data is routed only according to the BAP destination address. If there is no indication of the first indication information, or the second indication information indicates that it is unnecessary, the data can be routed according to the legacy routing rules.
  • the content of the third mapping list may include at least one of the following:
  • the third mapping table includes at least one third PATH ID, and at least one third destination address;
  • each of the third PATH IDs may correspond to one or more of the third destination addresses
  • the border node determines the second destination address that has a mapping relationship with the second PATH ID in the third mapping table based on the second PATH ID in the first information and the third mapping table, it can be in the third mapping table Find the third PATH ID that is the same as the second PATH ID, and then determine that the third destination address corresponding to the third PATH ID is the second destination address of the destination node in the second topology structure corresponding to the second PATH ID, that is, the The second destination address of the destination node of the data packet.
  • the border node may maintain a set of third mapping lists, and for downlink, the border node may maintain another set of the same or different third mapping list.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, further comprising:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes second indication information, determine that the destination node of the data packet is the A border node; wherein, the second indication information is used to directly indicate that the data packet does not need to be routed across topologies;
  • the method also includes:
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior; if yes, then It may be further determined whether there is first indication information indicating whether cross-topology routing is required;
  • the PDU can be delivered to The upper layer of the BAP layer of the boundary node.
  • the first information when the first information includes the second indication information, the first information may also include a sixth PATH ID, and the sixth PATH ID is from the generation node of the data packet in the first topology to the The routing path of the border node.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, including:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the third BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the third BAP virtual address is used to indicate that the data packet needs to be routed across topologies; the third BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the centralized unit CU is configured for the border node.
  • a virtual border node address may be used to indicate that the PDU is a to-be-routed packet.
  • the third BAP virtual address can be used to directly indicate that the data packet needs to be routed across topologies, that is, the border node can include the third BAP virtual address in determining the first information (the BAP destination address in the first information and In the case that the third BAP virtual address of the border node is the same), it is directly determined that the destination node of the data packet belongs to the second topology, that is, header rewriting is required.
  • the border node will be based on the BAP
  • the third BAP virtual address carried in the PDU determines that the PDU needs to be header rewriting, and then determines the BAP routing ID corresponding to the PDU under the second topology, and rewrites the BAP routing ID into the header of the BAP PDU. Transmit in the second topology.
  • the third BAP virtual address may be a preset virtual address, which is used to directly indicate that the header rewriting needs to be performed on the data packet.
  • the third BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology; that is, the first topology and/or Or, the CU under the second topology can configure a logical/virtual BAP address for the border node, which is used to directly indicate that the data packet there needs to be routed across the topology.
  • each boundary node (boundary node) can have a fixed third BAP virtual address
  • each boundary node can have two fixed third BAP virtual addresses, one of which is for routing of uplink data, and the other is for routing of downlink data.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology;
  • the border node rewrites the packet header of the data packet based on the first information, including:
  • the fourth mapping table includes at least one fifth PATH ID and at least one fifth destination address, one fifth PATH ID has a mapping relationship with one or more fifth destination addresses, and different fifth There is a mapping relationship between PATH ID and different fifth destination addresses, the fourth PATH ID is one of the at least one fifth PATH ID, and the fourth destination address is one of the at least one fifth destination address .
  • the first information may further include a fourth PATH ID, and the first Four PATH IDs are used to indicate the routing path from the border node to the destination node in the second topology.
  • the border node determines that the PDU needs header rewriting according to the third BAP virtual address carried in the BAP PDU, it can find the fourth PATH ID from at least one of the fifth PATH ID based on the local fourth mapping table. For the same fifth PATH ID, determine the fifth destination address corresponding to the fifth PATH ID that is the same as the fourth PATH ID, that is, the fourth destination address corresponding to the fourth PATH ID, that is, the second topology in the second topology can be determined The fourth destination address of the destination node, and then these two IDs can be rewritten in the BAP header of the data packet.
  • the following information can be carried in the BAP header of the PDU for inter-donor routing:
  • Destination BAP address the third BAP virtual address of the border node
  • the BAP destination address is the logical address of the border node
  • the border node can rewrite the BAP PDU after the header is rewritten to find the next hop node to submit data according to the legacy routing rules until it is routed to the destination node displayed in the BAP header.
  • the contents of the fourth mapping list may include at least one of the following:
  • the IAB address of the next hop node is the IAB address of the next hop node.
  • the border node may maintain a set of fourth mapping lists, and for the downlink, the border node may maintain another set of the same or different fourth mapping lists.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, including:
  • boundary node determines that the BAP destination address in the first information is the same as the real address of the boundary node, determine that the destination node of the data packet is the boundary node;
  • the method also includes:
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior; if yes, then It can be further judged whether the BAP address is the virtual address of the border node or the real address;
  • the border node determines that the BAP destination address in the first information is identical to the real address of the border node, that is, it is determined that the BAP destination address in the BAP header is the real address of the border node, that is, it means that the data packet is transmitted To the border node, instead of routing to another topology, the PDU can be delivered to the upper layer of the BAP layer of the border node after removing the header.
  • the first information further includes a seventh PATH ID, where the seventh PATH ID is used to indicate a routing path from the generation node of the data packet to the border node in the first topology.
  • the first information further includes a seventh PATH ID, and the seventh PATH ID is used to indicate the generation node of the data packet in the first topology The routing path to the border node.
  • the border node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet, further comprising:
  • the boundary node determines that the BAP destination address in the first information is different from the address of the boundary node, determine that the destination node of the data packet does not belong to the second topology
  • the method also includes:
  • the data packets are transmitted according to the routing rules stipulated in the protocol.
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, the border node determines the BAP destination address in the first information and the border node address If the addresses are not the same, they can be submitted to the next hop (the next IAB node) according to the legacy behavior.
  • the routing rules specified in the protocol may be existing legacy routing rules, or routing rules specified in the communication protocol.
  • a data routing method in a topology redundancy scenario wherein the boundary node rewrites the routing ID of the BAP header of the data packet under topology 1 according to a preset mapping rule ( re-writing), change it to the routing ID under topology 2, so that data packets can be routed from topology 1 to topology 2 through the boundary node, and achieve the purpose of load-balancing under inter-donor redundancy.
  • Boundary node does not need to maintain an additional (and complicated) mapping list, just use the list in legacy technology; it will not reduce the number of usable path IDs in topology 1; it only needs to occupy a small amount of BAP address.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • Fig. 8 is the second schematic flow diagram of the data routing method provided by the embodiment of the present application. As shown in Fig. 8, the method includes the following steps:
  • Step 800 the generation node in the first topology structure generates a data packet, the header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • Step 810 the generating node sends the data packet to the border node.
  • the data packets in the first topology are generated by generation nodes in the first topology
  • the header of the data packet in the first topology includes first information, and the first information can be used by the border node to determine the ownership of the destination node of the data packet, that is, it can be used by the border node to distinguish the data packet Whether it needs to be submitted to the upper layer of the border node, or needs to be rewritten at the border node (BAP header re-writing);
  • the attribution of the destination node of the data packet is known to the generating node.
  • the border node may determine the attribution of the destination node of the data packet based on the first information in the header of the data packet, that is, determine whether the data packet needs It is still necessary to rewrite the packet header at the border node if it is submitted to the upper layer of the border node;
  • the border node may rewrite the packet header of the data packet based on the first information, and The rewritten data packet is transmitted to the destination node, so that the data packet can be effectively transmitted in the second topology.
  • the border node can route the BAP header of the data packet under the first topology when it is determined that the destination node of the data packet belongs to the second topology ID rewriting (re-writing) is changed to the routing ID under the second topology, so that the data packet can be routed from the first topology to the second topology through the border node, and the load- The purpose of balancing.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the method before the generating node in the first topology generates the data packet, the method further includes:
  • the generating node determines a first PATH ID based on the first destination address, and the first PATH ID is used to indicate a routing path from the border node to the destination node in the second topology;
  • the generating node determines the first BAP virtual address in the first information based on the local first mapping table and the first mapping information;
  • the generation node in the first topology structure generates a data packet, including:
  • the generating node generates the data packet, and the BAP destination address in the first information in the header of the data packet is the same as the first BAP virtual address;
  • the first mapping information includes any one or any combination of the following:
  • the first mapping table includes at least one fourth BAP virtual address and at least one second mapping information; there is a mapping relationship between one second mapping information and one fourth BAP virtual address, and the different second There is a mapping relationship between the mapping information and different fourth BAP virtual addresses, the first BAP virtual address is one of the at least one fourth BAP virtual address, and the first mapping information is the at least one second mapping information One of: the at least one fourth BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the generating node locally stores a first mapping table, and the first mapping table is used to determine the first BAP virtual address of at least one border node.
  • the generating node may first determine the first destination address of the data packet at the destination node of the second topology; then the first PATH ID may be determined based on the first destination address, and the first The PATH ID is used to indicate the PATH ID from the border node to the destination node in the second topology; and determine the border node that needs to rewrite the packet header of the data packet;
  • the first BAP virtual address corresponding to the first mapping information may be determined in the first mapping table based on the local first mapping information, and the first mapping information may include any one or any combination of the following:
  • the first PATH ID The first PATH ID.
  • the generating node may first determine the first destination address of the destination node of the data packet in the second topology; Then the first PATH ID can be determined based on the first destination address, and the first PATH ID is used to indicate the PATH ID from the boundary node to the destination node in the second topology; and it is determined that the data needs to be
  • the boundary node where the header of the packet is rewritten that is, at least one eighth PATH ID corresponding to the real address of the boundary node can be determined in the first mapping table, and then the eighth PATH ID that is the same as the first PATH ID can be determined therefrom , and then determine the fourth BAP virtual address corresponding to the eighth PATH ID identical to the first PATH ID, as the first BAP virtual address having a mapping relationship with the first PATH ID, that is, the first BAP virtual address in the header of the data packet can be
  • the BAP destination address in the information is set to be
  • the mapping relationship between node information groups is the same.
  • the generation object of the first mapping table CUs under the first topology and/or the second topology;
  • the first mapping table may be as shown in Table 2 below, and may include at least one of the following:
  • the boundary node corresponds to the fourth BAP virtual address of any one or any combination of the above (i)-(iii).
  • Table 2 is only an example of the first mapping table, and does not serve as a limitation on the first mapping table and its contents.
  • generating the data packet at the generation node in the first topology includes:
  • the generating node generates the data packet, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the real address of the border node may be directly used as the BAP destination address in the first information of the header of the data packet generated by the generating node.
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior; if yes, then It can be further judged whether the BAP address is the virtual address of the border node or the real address;
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, that is, it determines that the BAP destination address in the BAP header is the real address of the border node, that is, it means that the data is transmitted to Border node, instead of needing to be routed to another topology, the PDU can be delivered to the upper layer of the BAP layer of the border node after removing the header.
  • generating the data packet by the generation node in the first topology includes:
  • the generating node generates the data packet, the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, and the first information includes first indication information, so The first indication information is used to directly indicate that the data packet needs to be routed across topologies.
  • 1 bit (that is, the first indication information) may be used in the AP header to indicate that the PDU is a to-be-routed packet, and what it carries is the path ID in the second topology.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node is the same as the real address of the border node
  • the first information includes first indication information, which is used to directly indicate to the border node that the data packet needs to be routed across topologies.
  • the border node may determine the attribution of the destination node of the data packet according to the first indication information in the first information, that is, distinguish whether header rewriting is required.
  • the first indication information is used to directly indicate that the destination node of the data packet belongs to the second topology, that is, the border node can directly determine the destination node of the data packet when it is determined that the first information includes the first indication information It belongs to the second topology, that is, header rewriting is required.
  • the border node will be based on the BAP
  • the first indication information carried in the PDU determines that the PDU needs to be header rewriting, and then determines the BAP routing ID corresponding to the data packet under the second topology, and rewrites the BAP routing ID into the header of the BAP PDU. Transmit in the second topology.
  • this embodiment of the present application omits the operation of donor-DU/access node configuring the BAP Routing ID of to-be-routed data, which effectively reduces the complexity of data packet routing and saves transmission resources.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node is the same as the real address of the border node
  • the first information may also include a second PATH ID, wherein the second PATH ID is used to indicate the border node in the second topology to the The routing path of the destination node.
  • generating the data packet at the generation node in the first topology includes:
  • the generation node generates the data packet
  • the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, and the first information includes second indication information, and the second indication information is used to directly indicate The packets do not need to be routed across topologies.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node is the same as the real address of the border node
  • the first information includes second indication information, which is used to directly indicate to the border node that the data packet does not need to be routed across topologies.
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior; if yes, then It may be further determined whether there is first indication information indicating whether cross-topology routing is required;
  • the PDU can be delivered to The upper layer of the BAP layer of the boundary node.
  • generating the data packet by the generation node in the first topology includes:
  • the generating node generates the data packet, the BAP destination address in the first information in the packet header of the data packet is the same as the third BAP virtual address, and the third BAP virtual address is used to indicate that the data packet needs to be processed.
  • Cross-topology routing the third BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • a virtual border node address may be used to indicate that the PDU is a to-be-routed packet.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node may be the same as the third BAP virtual address
  • the border node will be based on the BAP
  • the third BAP virtual address carried in the PDU determines that the PDU needs to be header rewriting, and then determines the BAP routing ID corresponding to the PDU under the second topology, and rewrites the BAP routing ID into the header of the BAP PDU. Transmit in the second topology.
  • the third BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology; that is, the first topology and/or Or, the CU under the second topology can configure a logical/virtual BAP address for the border node, which is used to directly indicate that the data packet there needs to be routed across the topology.
  • each boundary node can have a fixed third BAP virtual address
  • each boundary node can have two fixed third BAP virtual addresses, one of which is for routing of uplink data, and the other is for routing of downlink data.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the first information may further include a fourth PATH ID, and the first Four PATH IDs are used to indicate the routing path from the border node to the destination node in the second topology.
  • generating the data packet at the generation node in the first topology includes:
  • the generating node generates the data packet, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node is the same as the real address of the border node
  • the first information includes a third BAP virtual address, which is used to directly indicate to the border node that the data packet does not need to be routed across topologies.
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, submit it to the next hop (next IAB node) according to the legacy behavior; if yes, then It can be further judged whether the BAP address is the virtual address of the border node or the real address;
  • the border node determines that the BAP destination address in the first information is identical to the real address of the border node, that is, it is determined that the BAP destination address in the BAP header is the real address of the border node, that is, it means that the data packet is transmitted To the border node, instead of routing to another topology, the PDU can be delivered to the upper layer of the BAP layer of the border node after removing the header.
  • generating the data packet by the generation node in the first topology includes:
  • the generating node generates the data packet, and the BAP destination address in the first information in the header of the data packet is different from the address of the border node.
  • the BAP destination address in the first information in the header of the data packet generated by the generating node is different from the address of the boundary node ;
  • the border node after the border node receives the BAP PDU, it can judge whether the BAP destination address in the BAP header is the address of the border node; if not, the border node determines the BAP destination address in the first information and the border node address If the addresses are not the same, they can be submitted to the next hop (the next IAB node) according to the legacy behavior.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the data routing method provided in the embodiment of the present application may be executed by a data routing device, or a control module in the data routing device for executing the data routing method.
  • the data routing device provided in the embodiment of the present application is described by taking the execution of the data routing method by the data routing device as an example.
  • Fig. 9 is one of the structural schematic diagrams of the data routing device provided by the embodiment of the present application.
  • the data routing device 900 includes: a first receiving module 910, a first determining module 920, a first rewriting module 930, and The first transmission module 940; wherein:
  • the first receiving module 910 is configured to receive data packets in the first topology
  • the first determining module 920 is configured to determine the attribution of the destination node of the data packet based on the first information in the header of the data packet;
  • the first rewriting module 930 is configured to rewrite the packet header of the data packet based on the first information when the destination node of the data packet belongs to the second topology;
  • the first transmission module 940 is configured to transmit the rewritten data packet to the destination node in the second topology.
  • the data routing device may receive a data packet in the first topology through the first receiving module 910; then, based on the first information in the packet header of the data packet, determine the data packet through the first determining module 920 The attribution of the destination node of the data packet; then, when the destination node of the data packet belongs to the second topology, based on the first information, the header of the data packet can be rewritten by the first rewriting module 930; Randomly, the rewritten data packet may be transmitted to the destination node in the second topology through the first transmission module 940 .
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the first determination module is also used for:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the first BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the first destination node information group includes the first destination address of the destination node in the second topology and the first PATH ID, where the first PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the first rewriting module is also used for:
  • the border node determines a first destination node information group that has a mapping relationship with the first BAP virtual address based on the local second mapping table and the first BAP virtual address;
  • the second mapping table includes at least one second BAP virtual address and at least one second destination node information group, and there is a mapping between one said second BAP virtual address and one or more of said second destination node information groups
  • the first BAP virtual address is one of the at least one second BAP virtual address
  • the first destination node information The group is one of the at least one second destination node information group; the at least one second BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology is The border node is configured.
  • the first determination module is also used for:
  • boundary node determines that the BAP destination address in the first information is identical to the real address of the boundary node, determine that the destination node of the data packet is the boundary node;
  • the device also includes:
  • the first removal module is used to remove the header of the data packet
  • the first determination module is also used for:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes first indication information, determine that the destination node of the data packet belongs to the first Two topology;
  • the first indication information is used to directly indicate that the data packet needs to be routed across topologies.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the first rewriting module is also used for:
  • the border node determines the second destination address of the destination node in the second topology based on the local third mapping table and the second PATH ID;
  • the third mapping table includes at least one third PATH ID, and at least one third destination address, and there is a mapping relationship between one said third PATH ID and one or more third destination addresses, and different third There is a mapping relationship between the PATH ID and different third destination addresses, the second PATH ID is one of the at least one third PATH ID, and the second destination address is one of the at least one third destination address .
  • the first determination module is also used for:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes second indication information, determine that the destination node of the data packet is the A border node; wherein, the second indication information is used to directly indicate that the data packet does not need to be routed across topologies;
  • the device also includes:
  • the second removal module is used to remove the header of the data packet
  • the second delivery module is used to deliver the data packet after removing the header to the upper layer of the BAP layer of the border node.
  • the first determination module is also used for:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the third BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the third BAP virtual address is used to indicate that the data packet needs to be routed across topologies; the third BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the centralized unit CU is configured for the border node.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology;
  • the first rewriting module is also used for:
  • the fourth mapping table includes at least one fifth PATH ID and at least one fifth destination address, one fifth PATH ID has a mapping relationship with one or more fifth destination addresses, and different fifth There is a mapping relationship between PATH ID and different fifth destination addresses, the fourth PATH ID is one of the at least one fifth PATH ID, and the fourth destination address is one of the at least one fifth destination address .
  • the first determination module is also used for:
  • boundary node determines that the BAP destination address in the first information is identical to the real address of the boundary node, determine that the destination node of the data packet is the boundary node;
  • the device also includes:
  • the third removing module is used to remove the header of the data packet
  • the third delivery module is used to deliver the data packet after removing the header to the upper layer of the BAP layer of the border node.
  • the first information further includes a seventh PATH ID, where the seventh PATH ID is used to indicate a routing path from the generation node of the data packet to the border node in the first topology.
  • the first determination module is also used for:
  • the boundary node determines that the BAP destination address in the first information is different from the address of the boundary node, determine that the destination node of the data packet does not belong to the second topology
  • the device also includes:
  • the second transmission module is configured to transmit the data packet according to the routing rules stipulated in the protocol.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the data routing device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • Fig. 10 is the second structural diagram of the data routing device provided by the embodiment of the present application.
  • the data routing device 1000 includes: a first generation module 1010, and a first sending module 1020; wherein: the first generation module 1010 is used to generate a data packet in the first topology, the header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • the first sending module 1020 is configured to send the data packet to the border node.
  • the data routing device may use the first generation module 1010 to generate a data packet in the first topology, the header of the data packet includes first information, and the first information is used to indicate the destination node of the data packet attribution; then the first sending module 1020 sends the data packet to the border node.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the device also includes:
  • a second determining module configured to determine the first destination address of the data packet at the destination node of the second topology before the generating node in the first topology generates the data packet
  • a third determining module configured to determine a first PATH ID based on the first destination address, where the first PATH ID is used to indicate a routing path from the border node to the destination node in the second topology;
  • a fourth determining module configured to determine the first BAP virtual address in the first information based on the local first mapping table and the first mapping information
  • the first generating module is also used for:
  • the BAP destination address in the first information in the header of the data packet is identical to the first BAP virtual address
  • the first mapping information includes any one or any combination of the following:
  • the first mapping table includes at least one fourth BAP virtual address and at least one second mapping information; there is a mapping relationship between one second mapping information and one fourth BAP virtual address, and the different second There is a mapping relationship between the mapping information and different fourth BAP virtual addresses, the first BAP virtual address is one of the at least one fourth BAP virtual address, and the first mapping information is the at least one second mapping information One of: the at least one fourth BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the first generating module is also used for:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the first generating module is also used for:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, And the first information includes first indication information, where the first indication information is used to directly indicate that the data packet needs to be routed across topologies.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the first generating module is also used for:
  • the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, and the first information includes second indication information, and the second indication information is used to directly indicate The packets do not need to be routed across topologies.
  • the first generating module is also used for:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is the same as the third BAP virtual address, and the first The three BAP virtual addresses are used to indicate that the data packet needs to be routed across topologies; the third BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the first generating module is also used for:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the first generating module is also used for:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is different from the address of the boundary node. .
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the data routing device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the data routing device provided by the embodiment of the present application can realize each process realized by the method embodiments in FIG. 2 to FIG. 8 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • FIG. 11 is a schematic structural diagram of a communication device provided by the embodiment of the present application.
  • the programs or instructions that can run on the processor 1101 for example, when the communication device 1100 is a terminal, the programs or instructions are executed by the processor 1101 to implement the various processes of the above data routing method embodiments, and can achieve the same technical effect.
  • the communication device 1100 is a network-side device, when the program or instruction is executed by the processor 1101, each process of the above-mentioned data routing method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a border node, including a processor and a communication interface, where the communication interface is used for:
  • the processor is used to:
  • the border node In the case of determining that the destination node of the data packet belongs to the second topology, the border node rewrites the header of the data packet based on the first information
  • the communication interface is also used for:
  • the border node transmits the rewritten data packet to the destination node in the second topology.
  • This embodiment of the boundary node corresponds to the embodiment of the above-mentioned method for the boundary node, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this embodiment of the boundary node, and can achieve the same technical effect.
  • FIG. 12 is a schematic structural diagram of a border node provided by an embodiment of the present application.
  • the border node device 1200 includes: an antenna 1201 , a radio frequency device 1202 , and a baseband device 1203 .
  • the antenna 1201 is connected to the radio frequency device 1202 .
  • the radio frequency device 1202 receives information through the antenna 1201, and sends the received information to the baseband device 1203 for processing.
  • the baseband device 1203 processes the information to be sent and sends it to the radio frequency device 1202
  • the radio frequency device 1202 processes the received information and sends it out through the antenna 1201 .
  • the foregoing frequency band processing device may be located in the baseband device 1203 , and the method performed by the boundary node in the above embodiment may be implemented in the baseband device 1203 , and the baseband device 1203 includes a processor 1204 and a memory 1205 .
  • the baseband device 1203 may include, for example, at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG. The boundary node operations shown in the method embodiments above.
  • the baseband device 1203 may also include a network interface 1206 for exchanging information with the radio frequency device 1202, such as a common public radio interface (CPRI for short).
  • a network interface 1206 for exchanging information with the radio frequency device 1202, such as a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the boundary node in this embodiment of the present invention also includes: instructions or programs stored in the memory 1205 and operable on the processor 1204, and the processor 1204 calls the instructions or programs in the memory 1205 to execute the modules shown in FIG. 9 method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • processor 1204 is used for:
  • the rewritten data packet is transmitted to the destination node in the second topology.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • processor 1204 is also used for:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the first BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the first destination node information group includes the first destination address of the destination node in the second topology and the first PATH ID, where the first PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • processor 1204 is also used for:
  • the second mapping table includes at least one second BAP virtual address and at least one second destination node information group, and there is a mapping between one said second BAP virtual address and one or more of said second destination node information groups
  • the first BAP virtual address is one of the at least one second BAP virtual address
  • the first destination node information The group is one of the at least one second destination node information group; the at least one second BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology is The border node is configured.
  • processor 1204 is also used for:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, determine that the destination node of the data packet is the border node;
  • Processor 1204 is also used to:
  • processor 1204 is also used for:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes first indication information, determine that the destination node of the data packet belongs to the first Two topology;
  • the first indication information is used to directly indicate that the data packet needs to be routed across topologies.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • processor 1204 is also used for:
  • the third mapping table includes at least one third PATH ID, and at least one third destination address, and there is a mapping relationship between one said third PATH ID and one or more third destination addresses, and different third There is a mapping relationship between the PATH ID and different third destination addresses, the second PATH ID is one of the at least one third PATH ID, and the second destination address is one of the at least one third destination address .
  • processor 1204 is also used for:
  • the border node determines that the BAP destination address in the first information is the same as the real address of the border node, and the first information includes second indication information, determine that the destination node of the data packet is the A border node; wherein, the second indication information is used to directly indicate that the data packet does not need to be routed across topologies;
  • Processor 1204 is also used to:
  • processor 1204 is also used for:
  • the boundary node determines that the destination address of the return adaptation protocol layer BAP in the first information is the same as the third BAP virtual address of the boundary node, determine that the destination node of the data packet belongs to the second topology;
  • the third BAP virtual address is used to indicate that the data packet needs to be routed across topologies; the third BAP virtual address is the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the centralized unit CU is configured for the border node.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology;
  • Processor 1204 is also used to:
  • the fourth mapping table includes at least one fifth PATH ID and at least one fifth destination address, one fifth PATH ID has a mapping relationship with one or more fifth destination addresses, and different fifth There is a mapping relationship between PATH ID and different fifth destination addresses, the fourth PATH ID is one of the at least one fifth PATH ID, and the fourth destination address is one of the at least one fifth destination address .
  • processor 1204 is also used for:
  • boundary node determines that the BAP destination address in the first information is the same as the real address of the boundary node, determine that the destination node of the data packet is the boundary node;
  • Processor 1204 is also used to:
  • the first information further includes a seventh PATH ID, where the seventh PATH ID is used to indicate a routing path from the generation node of the data packet to the border node in the first topology.
  • processor 1204 is also used for:
  • the boundary node determines that the BAP destination address in the first information is different from the address of the boundary node, determine that the destination node of the data packet does not belong to the second topology
  • Processor 1204 is also used to:
  • the data packets are transmitted according to the routing rules stipulated in the protocol.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the embodiment of the present application also provides a generation node, including a processor and a communication interface, and the processor is used for:
  • the packet header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • the communication interface is used for:
  • the embodiment of the generation node device corresponds to the above embodiment of the generation node method, and the various implementation processes and implementation methods of the above method embodiments can be applied to the embodiment of the generation node, and can achieve the same technical effect.
  • FIG. 13 is a schematic structural diagram of a generation node provided by an embodiment of the present application.
  • the generation node 1300 includes: an antenna 1301 , a radio frequency device 1302 , and a baseband device 1303 .
  • the antenna 1301 is connected to the radio frequency device 1302 .
  • the radio frequency device 1302 receives information through the antenna 1301, and sends the received information to the baseband device 1303 for processing.
  • the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302
  • the radio frequency device 1302 processes the received information and sends it out through the antenna 1301 .
  • the foregoing frequency band processing device may be located in the baseband device 1303 , and the method performed by the generation node in the above embodiment may be implemented in the baseband device 1303 , and the baseband device 1303 includes a processor 1304 and a memory 1305 .
  • the baseband device 1303 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. Generate node operations shown in the method embodiments above.
  • the baseband device 1303 may also include a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (common public radio interface, CPRI for short).
  • a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (common public radio interface, CPRI for short).
  • the generation node in this embodiment of the present invention also includes: instructions or programs stored in the memory 1305 and operable on the processor 1304, and the processor 1304 calls the instructions or programs in the memory y5 to execute the modules shown in FIG. 10 method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • processor 1304 is used for:
  • the packet header of the data packet includes first information, and the first information is used to indicate the ownership of the destination node of the data packet;
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • processor 1304 is also used for:
  • Processor 1304 is also used to:
  • the BAP destination address in the first information in the header of the data packet is identical to the first BAP virtual address
  • the first mapping information includes any one or any combination of the following:
  • the first mapping table includes at least one fourth BAP virtual address and at least one second mapping information; there is a mapping relationship between one second mapping information and one fourth BAP virtual address, and the different second There is a mapping relationship between the mapping information and different fourth BAP virtual addresses, the first BAP virtual address is one of the at least one fourth BAP virtual address, and the first mapping information is the at least one second mapping information One of: the at least one fourth BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the processor 1304 is further configured to:
  • the generating node generates the data packet, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the processor 1304 is further configured to:
  • the data packet is generated, the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, and the first information includes first indication information, and the first indication The information is used to directly indicate that the data packet needs to be routed across topologies.
  • the first information further includes a second PATH ID, where the second PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the processor 1304 is further configured to:
  • the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node, and the first information includes second indication information, and the second indication information is used to directly indicate The packets do not need to be routed across topologies.
  • the processor 1304 is further configured to:
  • the BAP destination address in the first information in the header of the data packet is the same as the third BAP virtual address, and the third BAP virtual address is used to indicate that the data packet needs to be routed across topologies;
  • the third BAP virtual address is configured for the border node by the first centralized unit CU under the first topology or the second centralized unit CU under the second topology.
  • the first information further includes a fourth PATH ID, where the fourth PATH ID is used to indicate a routing path from the border node to the destination node in the second topology.
  • the processor 1304 is further configured to:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is the same as the real address of the border node.
  • the processor 1304 is further configured to:
  • the data packet is generated, and the BAP destination address in the first information in the header of the data packet is different from the address of the border node.
  • the boundary node determines the attribution of the destination node of the data packet based on the first information in the header of the data packet in the first topology; and when it is determined that the destination node of the data packet belongs to the second topology In the case of , based on the first information, the packet header of the data packet is rewritten; and the rewritten data packet is transmitted to the destination node to ensure that the border node can directly distinguish the packet header from the received data packet. Whether the data needs to be routed to the second topology structure to reduce the difficulty of data routing and save resources.
  • the embodiment of the present application also provides a readable storage medium.
  • the readable storage medium stores programs or instructions.
  • the program or instructions are executed by the processor, the various processes of the above-mentioned data routing method embodiments can be achieved, and the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above data routing method embodiment
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above data routing method embodiment
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above-mentioned system message
  • the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above-mentioned system message
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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Abstract

本申请公开了一种数据路由方法、装置、节点及存储介质,属于通信技术领域,本申请实施例的数据路由方法包括:边界节点接收第一拓扑结构中的数据包;所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;在所述数据包的目的节点属于所述第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。

Description

数据路由方法、装置、节点及存储介质
相关申请的交叉引用
本申请要求于2021年08月04日提交的申请号为202110893480.9,发明名称为“数据路由方法、装置、节点及存储介质”的中国专利申请的优先权,其通过引用方式全部并入本申请。
技术领域
本申请属于通信技术领域,具体涉及一种数据路由方法、装置、节点及存储介质。
背景技术
第一拓扑结构中有数据需要通过第二拓扑结构发给终端,那么第二拓扑结构需要给该数据包配置好对应的路由映射,首先把数据路由到边界节点,再由边界节点进行数据包包头的改写,之后由边界节点将给数据路由到第二拓扑结构中的节点。
但是,对于边界节点来说,无法判断目前发至边界节点的数据是否需要发送至第二拓扑结构,进而导致数据路由的复杂度大,资源占用过多。
发明内容
本申请实施例提供一种数据路由方法、装置、节点及存储介质,能够解决数据路由的复杂度大,资源占用过多的问题。
第一方面,提供了一种数据路由方法,该方法包括:
边界节点接收第一拓扑结构中的数据包;
所述边界节点基于所述数据包的包头中的第一信息,确定所述数据 包的目的节点的归属;
在所述数据包的目的节点属于所述第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;
所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
第二方面,提供了一种数据路由方法,该方法包括:
第一拓扑结构中的生成节点生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
所述生成节点将所述数据包发送至所述边界节点。
第三方面,提供了一种数据路由装置,该装置包括:
第一接收模块,用于接收第一拓扑结构中的数据包;
第一确定模块,用于基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
第一改写模块,用于在所述数据包的目的节点属于所述第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;
第一传输模块,用于在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
第四方面,提供了一种数据路由装置,该装置包括:
第一生成模块,用于在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
第一发送模块,用于将所述数据包发送至所述边界节点。
第五方面,提供了一种边界节点,该边界节点包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种边界节点,包括处理器及通信接口,其中,所述通信接口用于:
接收第一拓扑结构中的数据包;
所述处理器用于:
基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
在确定数据包的目的节点属于第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;
所述通信接口还用于:
所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
第七方面,提供了一种生成节点,该生成节点包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第八方面,提供了一种生成节点,包括处理器及通信接口,其中,所述处理器用于:
在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
所述通信接口用于:
将所述数据包发送至所述边界节点。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或者实现如第二方面所述的方法。
第十一方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非瞬态的存储介质中,所述程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤,或者实现如第二方面所 述的方法的步骤。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
附图说明
图1示出本申请实施例可应用的一种无线通信系统的结构图;
图2是本申请实施例提供的IAB系统的示意图;
图3是本申请实施例提供的IAB系统的CU-DU的结构示意图;
图4是本申请实施例提供的协议栈的示意图;
图5是本申请实施例提供的跨拓扑结构的示意图;
图6是本申请实施例提供的数据路由方法的流程示意图之一;
图7是本申请实施例提供的BAP Data PDU format的示意图;
图8是本申请实施例提供的数据路由方法的流程示意图之二;
图9是本申请实施例提供的数据路由装置的结构示意图之一;
图10是本申请实施例提供的数据路由装置的结构示意图之二;
图11是本申请实施例提供的通信设备的结构示意图;
图12是本申请实施例提供的边界节点的结构示意图;
图13是本申请实施例提供的生成节点的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的 所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,即A和/或B表示包括仅有A、仅有B以及同时包括A和B这3种情况,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的结构图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称 为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装、游戏机等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的数据路由方法、装置、节点及存储介质进行详细地说明。
首先对以下内容进行介绍:
无线接入和回传一体化(integrated access backhaul,IAB)系统是通信系统中的一项技术。图2是本申请实施例提供的IAB系统的示意图。如图2所示,一个IAB节点包括分布式单元(Distributed Unit,DU)功能部分和移动终端(Mobile Termination,MT)功能部分。依靠MT,一个接入节点(IAB node)可以找到一个上游接入点(parent IAB node),并跟上 游接入点的DU建立无线连接,该无线连接被称为回传链路(backhaul link)。在一个IAB节点建立完整的回传链路后,该IAB节点打开其DU功能,DU会提供小区服务,即DU可以为UE提供接入服务。一个自回传拓扑结构包含一个IAB宿主节点(donor IAB节点)(或者称为IAB donor),donor IAB节点有直接相连的有线传输网。
IAB系统中包括集中单元-分布式单元(Centralized Unit-Distributed Unit,CU-DU);图3是本申请实施例提供的IAB系统的CU-DU的结构示意图,如图3所示,在一个自回传拓扑结构中,所有的IAB节点的DU都连接到一个CU节点,由这一个节点对DU进行配置。CU通过无限资源控制(Radio Resource Control,RRC)协议,对MT进行配置。Donor IAB节点没有MT功能部分。
IAB系统的引入可以解决接入点密集部署时,有线传输网部署不到位的情况。即在没有有线传输网络时,接入点可以依赖无线回传。
IAB节点之间的无线链路称为Backhaul link(BH link),BH link上配置有回传无线链路控制信道(Backhaul RLC channel,BH RLC channel)进行无线回传。
图4是本申请实施例提供的协议栈的示意图,如图4所示,IAB中还引入了回传适配协议层(backhaul adaptation protocol,BAP),用于进行数据的转发,数据包的路由,流量控制等。
对于拓扑间路由(inter-topology routing),边界节点(boundary IAB-node)可以基于原先数据包的包头(BAP header)中承载的第一拓扑结构中的BAP routing ID1,对数据包的BAP header进行改写(
re-writing),将第二拓扑结构下的BAP routing ID2填入该数据包的BAP header中。
图5是本申请实施例提供的跨拓扑结构的示意图,如图5所示,边界节点(boundary IAB-node)是指:如果一个IAB节点的DU和它父节点的DU不是终止到同一个CU的话,这个节点即被认为是边界节点。也就 是说该节点的DU和其父节点的DU不是受同一个CU控制,但是该boundary IAB节点的MT是同时接入了不同的CU下。例如IAB3节点。
第一拓扑结构(First topology)是指:数据包在传输途中所经历的边界节点之前的拓扑片段。如CU2处产生的下行数据,图中右侧实线部分即为第一拓扑结构;如果是IAB4产生的需要发往CU2的上行数据,那么全部由点组成的虚线部分为第一拓扑结构。
第二拓扑结构(Second topology)是指:数据包在传输途中所经历的边界节点之后的拓扑片段。如CU2处产生的下行数据,全部由点组成的虚线部分即为第一拓扑结构;如果是IAB4产生的需要发往CU2的上行数据,那么图中右侧实线部分为第一拓扑结构。
边界节点目前无法对以下两类数据进行区分:
(1)需要进行数据包包头改写(BAP header re-writing)的数据:如CU2节点帮助CU1节点进行数据的路由,该数据需要被传递到IAB4节点处,因此经过IAB3节点时需要对数据的BAP header进行re-writing。
(2)不需要进行BAP header re-writing的数据:如CU2发给IAB3节点的数据,即IAB3节点收到后不继续传递,而是递交到该节点的upper layer;
如果boundary节点基于第一拓扑结构的Px来选择另一个第二拓扑结构的Py的,则存在如下缺陷:
(a)占用了第一拓扑结构的Path ID空间,比如Px需要与不进行route的数据所使用的Path ID不同,否则boundary节点无法区分是否要rewriting;
(b)由于Px用来指示第二拓扑结构中的Py映射,因此进一步需要占用大量的Path ID空间;
假设有2个数据都需要route,但是在第二拓扑结构中的终点不同,一个是给IAB4,一个是给IAB5,其标记path ID应该是Px1和Px2的,标记path ID不能相同,否则中间节点会映射到同样的routing ID。所以 Px1和Px2在第一拓扑结构中都代表A1->A3->A4的路线,但是需要消耗多个PATH ID来代表。
(c)边界节点需要维护一个复杂的BAP header re-writing table,表里的每一个Px都需要有一个(Ay,Py)的单独条目。
即需要占用大量PATH ID来进行inter-donor routing,从而影响本拓扑结构下的PATH ID的分配;CU1需要为每一个边界节点维护一个复杂的BAP header re-writing列表,增加了边界节点操作的复杂度;
因此,具体如何区分数据是否递交给边界节点,还是需要在边界节点进行BAP header re-writing,以及根据何种映射进行re-writing,以减少数据路由的难度,节省资源,尚不明确。
图6是本申请实施例提供的数据路由方法的流程示意图之一,如图6所示,该方法包括如下步骤:
步骤600,边界节点接收第一拓扑结构中的数据包;
步骤610,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
步骤620,在所述数据包的目的节点属于所述第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;
步骤630,所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
可选地,第一拓扑结构中的数据包是由第一拓扑结构中的生成节点生成的;
可选地,第一拓扑结构中的数据包的包头中包括第一信息,该第一信息可以用于边界节点确定所述数据包的目的节点的归属,即用于边界节点判断数据包的目的节点是否属于第二拓扑结构,即可以用于边界节点区分该数据包是否需要递交给边界节点的高层,还是需要在边界节点进行包头的改写(BAP header re-writing);
可选地,边界节点接收到第一拓扑结构中的数据包后,可以基于所 述数据包的包头中的第一信息,判断数据包的目的节点是否属于第二拓扑结构,即判断该数据包是否需要递交给边界节点的高层,还是需要在边界节点进行包头的改写;
可选地,若边界节点判断确定数据包的目的节点属于第二拓扑结构的情况下,边界节点可以基于所述第一信息对所述数据包的包头进行改写,并在所述第二拓扑结构中将改写后的数据包传输至所述目的节点,以实现该数据包可以在第二拓扑结构中进行有效传输。
可选地,目的IAB节点即目的节点。
可选地,数据包包头的改写(re-writing)还可以称为数据包包头的重写。
本申请实施例提供的一种拓扑冗余场景下的数据路由方法,边界节点可以在确定数据包的目的节点属于第二拓扑结构的情况下,将第一拓扑结构下的数据包BAP header进行routing ID的改写(re-writing),更改成第二拓扑结构下的routing ID,从而使得数据包能够借由边界节点从第一拓扑结构下路由到第二拓扑结构,实现inter-donor redundancy下load-balancing的目的。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,判断数据包的目的节点是否属于第二拓扑结构;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第一BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一BAP虚拟地址和所述数据包的第一目的节点信息组存在映射关系,所述第一目的节点信息组包括第二拓扑结构中的目的节点的第一目的地址以及第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,本申请实施例中,边界节点可以根据第一信息中的回传适配协议层目的地址(destination BAP地址,还可以称为BAP目的地址)来确定所述数据包的目的节点的归属,即区分是否需要进行header rewriting。
可选地,边界节点可以将第一信息中的BAP目的地址与边界节点的地址进行匹配,如果发现第一信息中的BAP目的地址与边界节点的第一虚拟地址相同,则可以确定该数据包的目的节点属于第二拓扑结构,即需要进行header rewriting。
可选地,第一BAP虚拟地址可以是预设的虚拟地址;
可选地,第一BAP虚拟地址可以与第一目的节点信息组相对应,
可选地,第一BAP虚拟地址与第一目的节点信息组之间的对应关系可以是预设的;
可选地,边界节点可以基于第一BAP虚拟地址映射至第一目的节点信息组,进而确定第二拓扑结构中的目的节点的第一目的地址,以及第一PATH ID,即第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,第一拓扑结构下的生成节点(Donor-DU或者access node)在为需要进行inter-donor routing的数据生成BAP PDU后,该BAP PDU被路由到边界节点时,边界节点可以根据BAP PDU中携带的BAP目的地址与第一BAP虚拟地址是否相同,判断该数据包是否需要跨拓扑路由,若是,则进而可以基于BAP PDU中携带的BAP目的地址确定该PDU在第二拓扑结构下对应的BAP routing ID,并且将该BAP routing ID重新写入该BAP PDU的header中,在第二拓扑结构中进行传输。
可选地,本申请实施例中,进行inter-donor routing的PDU的BAP header中的第一信息可以包括Destination BAP address,该Destination BAP address可以与第一虚拟地址相同;
可选地,本申请实施例中,边界节点可以根据第一BAP虚拟地址(第一logical/virtual BAP address)进行BAP header改写;即把path ID替换成了BAP address,有效减少数据包路由的复杂度,且节省传输资源。
可选地,所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
所述边界节点基于本地的第二映射表和所述第一BAP虚拟地址,确定与所述第一BAP虚拟地址存在映射关系的第一目的节点信息组;
基于所述第一目的节点信息组中的第二拓扑结构中的第一目的地址以及第一PATH ID,对所述数据包的包头进行改写;
其中,所述第二映射表包括至少一个第二BAP虚拟地址,和至少一个第二目的节点信息组,一个所述第二BAP虚拟地址与一个或多个所述第二目的节点信息组存在映射关系,不同的第二BAP虚拟地址与不同的第二目的节点信息组存在映射关系,所述第一BAP虚拟地址为所述至少一个第二BAP虚拟地址中的一个,所述第一目的节点信息组为所述至少一个第二目的节点信息组中的一个;所述至少一个第二BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,第一拓扑结构和/或第二拓扑结构下的CU可以为边界节点配置多个logical/virtual BAP地址,即第二BAP虚拟地址,每一个第二BAP虚拟地址都与第二拓扑结构下的一组第二目的节点信息组(Destination BAP address,Path ID)相对应。
可选地,至少一个第二BAP虚拟地址及其对应的一个或多个所述第二目的节点信息组,以及之间的映射关系,可以在第二映射表中体现;
第二映射表包括至少一个第二BAP虚拟地址,每一个第二BAP虚拟地址可以对应一个或多个所述第二目的节点信息组;
可选地,第二映射表可以是预设的,由边界节点本地保存。
可选的,边界节点在根据BAP PDU中携带的BAP目的地址与第一BAP虚拟地址相同,确定该数据包需要跨拓扑路由后,进而可以基于BAP PDU中携带的BAP目的地址确定该PDU在第二拓扑结构下对应的BAP routing ID,即可以根据边界节点本地保存的第二映射表,从中找到该第一BAP虚拟地址对应的第一目的节点信息组,进而基于第一目的节点信息组确定第一BAP虚拟地址在第二拓扑结构下对应的第一目的地址以及第一PATH ID,将这两个ID重新写入该数据包的BAP header中。
可选地,边界节点可以将改写完header后的BAP PDU重新按照legacy的路由规则找到下一跳节点递交数据,直到路由到BAP header中显示的目的节点处。
可选地,第二映射表的定义可以包括以下至少之一:
第二映射表的生成对象:第一拓扑结构和/或第二拓扑结构下的CU;
第二映射表可以如下表1所示,包括以下至少一项:
边界节点的第二BAP虚拟地址;
边界节点的第二BAP虚拟地址对应的第二拓扑结构下的PATH ID;
边界节点的第二BAP虚拟地址对应的第二拓扑结构下的目的IAB节点的BAP地址;
其中,边界节点的第二虚拟/逻辑BAP地址对应的第二拓扑结构下的PATH ID,和边界节点的第二虚拟/逻辑BAP地址对应的第二拓扑结构下的目的IAB节点的BAP地址可以称为第二目的节点信息组。
表1 第二映射表
Figure PCTCN2022108946-appb-000001
Figure PCTCN2022108946-appb-000002
其中,表1仅为第二映射表的示例,并不作为对第二映射表及其内容的限定。
可选的,目的IAB节点的BAP地址,即为目的节点的目的地址;
可选地,边界节点的真实BAP地址即为边界节点的真实地址;
可选地,对于上行而言,边界节点可以维护一套第二映射表,对于下行而言,边界节点可以维护另一套相同或不同的第二映射表;生成节点可以维护和边界节点相对应的第一映射表,以实现生成节点生成的数据包包头中得第一信息可以进行准确地指示。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,还包括:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同情况下,确定数据包的目的节点为所述边界节点;
所述方法还包括:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,边界节点接收到该数据包(BAP PDU)后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断该BAP地址是边界节点的虚拟地址,还是真实地址;
可选地,如果边界节点判断确定第一信息中的BAP目的地址和所述边界节点的真实地址相同,即判定BAP header中的BAP目的地址是边界节点的真实地址,即说明该数据是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,本申请实施例中,包头中可以用1个bit(即第一指示信息)来指示该PDU为需要进行跨拓扑路由的数据包(to-be-routed packet),且携带第二拓扑结构中的path ID。
可选地,本申请实施例中,边界节点可以根据第一信息中的第一指示信息来确定所述数据包的目的节点的归属,即区分是否需要进行包头改写(header rewriting)。
可选地,第一指示信息用于直接指示数据包的目的节点属于第二拓扑结构,即边界节点可以在确定第一信息中包括第一指示信息的情况下,直接确定该数据包的目的节点属于第二拓扑结构,即需要进行header rewriting。
可选地,第一拓扑结构下的生成节点(Donor-DU或者access node)在为需要进行inter-donor routing的数据生成BAP PDU后,该BAP PDU被路由到边界节点时,由边界节点根据BAP PDU中携带的第一指示信息确定该PDU需要进行header rewriting,进而确定该数据包在第二拓扑结构下对应的BAP routing ID,并且将该BAP routing ID重新写入该BAP PDU的header中,在第二拓扑结构中进行传输。
可选地,本申请实施例省略了数据包的生成节点(donor-DU/access node)配置需要进行跨拓扑路由的数据(to-be-routed data)的BAP Routing ID的操作,有效减少数据包路由的复杂度,且节省传输资源。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二 PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,图7是本申请实施例提供的BAP Data PDU format的示意图,如图7所示,进行inter-donor routing的PDU的BAP header中的第一信息还可以包括以下信息:
(1)Destination BAP address:边界节点在第一拓扑结构下的真实BAP地址;
(2)第二PATH ID:第二拓扑结构中从该边界节点至目的节点的PATH ID。
(3)第一指示信息:用于指示该PDU需要进行数据包包头改写(BAP header re-writing),即需要进行跨拓扑路由;可以是数据包包头(BAP header)中的1bit指示,比如用其中的Rbit来表示(如第3个Rbit),0表示需要进行;相应地,在不需要进行BAP header re-writing是,可以为1,即第二指示信息。
可选地,所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
所述边界节点基于本地的第三映射表和第二PATH ID,确定第二拓扑结构中的目的节点的第二目的地址;
基于所述第二PATH ID和所述第二目的地址,对所述数据包的包头进行改写;
其中,所述第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址,一个所述第三PATH ID与一个或多个所述第三目的地址存在映射关系,不同的第三PATH ID与不同的第三目的地址存在映射关系,所述第二PATH ID为所述至少一个第三PATH ID中的一个,所述第二目的地址为所述至少一个第三目的地址中的一个。
可选地,边界节点在根据BAP PDU中携带的第一指示信息确定该数据包需要跨拓扑路由后,进而可以基于第一信息中的第二PATH ID和第 三映射表,确定在第三映射表中与第二PATH ID存在映射关系的第二目的地址,进而可以将这两个ID重新写入该PDU的BAP header中。
可选地,边界节点可以将改写完header后的BAP PDU重新按照legacy的路由规则找到下一跳节点递交数据,直到路由到BAP header中显示的目的节点处。
可选的,第一拓扑结构中的其他IAB节点接收到该BAP PDU后,可以判断是否存在第一指示信息指示该PDU需要进行跨拓扑路由(BAP header re-writing);如果第一指示信息指示需要,则只按照BAP目的地址进行数据的路由,如果无第一指示信息的指示,或存在第二指示信息指示不需要,则可以按照legacy的路由规则对该数据进行路由。
可选地,第三映射列表的内容可以包括以下至少一项:
(1)第二PATH ID;
(2)该PATH ID对应的destination地址;
(3)下一跳节点的IAB地址。
可选地,第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址;
可选地,每一个所述第三PATH ID可以对应一个或多个所述第三目的地址;
可选地,边界节点在基于第一信息中的第二PATH ID和第三映射表确定在第三映射表中与第二PATH ID存在映射关系的第二目的地址时,可以在第三映射表中找到与第二PATH ID相同的第三PATH ID,随后确定第三PATH ID对应的第三目的地址即为第二PATH ID对应的第二拓扑结构中的目的节点的第二目的地址,即该数据包的目的节点的第二目的地址。
可选地,对于上行而言,边界节点可以维护一套第三映射列表,对于下行而言,边界节点可以维护另一套相同或不同的第三映射列表。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定 所述数据包的目的节点的归属,还包括:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息的情况下,确定数据包的目的节点为所述边界节点;其中,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由;
所述方法还包括:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断是否存在第一指示信息指示是否需要进行跨拓扑路由;
可选地,如果存在第二指示信息指示不需要进行跨拓扑路由,则可以说明该数据是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,第一信息包括第二指示信息的情况下,第一信息中还可以包括第六PATH ID,所述第六PATH ID为所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或 第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,本申请实施例中,可以用虚拟的边界节点地址来表示PDU为to-be-routed packet。
可选地,第三BAP虚拟地址可以用于直接指示所述数据包需要进行跨拓扑路由,即边界节点可以在确定第一信息中包括第三BAP虚拟地址(第一信息中的BAP目的地址和所述边界节点的第三BAP虚拟地址相同)的情况下,直接确定该数据包的目的节点属于第二拓扑结构,即需要进行header rewriting。
可选地,第一拓扑结构下的生成节点(Donor-DU或者access node)在为需要进行inter-donor routing的数据生成BAP PDU后,该BAP PDU被路由到边界节点时,由边界节点根据BAP PDU中携带的第三BAP虚拟地址确定该PDU需要进行header rewriting,进而确定该PDU在第二拓扑结构下对应的BAP routing ID,并且将该BAP routing ID重新写入该BAP PDU的header中,在第二拓扑结构中进行传输。
可选地,第三BAP虚拟地址可以是预设的虚拟地址,用于直接指示所在的数据包需要进行header rewriting。
可选地,所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的;即第一拓扑结构和/或第二拓扑结构下的CU可以为边界节点配置1个logical/virtual BAP地址,用于直接指示所在的数据包需要进行跨拓扑路由。
可选地,每个边界节点(boundary node)可以有一个固定的第三BAP虚拟地址;
可选地,每个boundary node可以有2个固定的第三BAP虚拟地址,其中一个针对上行数据的路由,另一个针对下行数据的路由。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
基于本地的第四映射表和第四PATH ID,确定第二拓扑结构中的目的节点的第四目的地址;
基于所述第四PATH ID和所述第四目的地址,对所述数据包的包头进行改写;
其中,所述第四映射表包括至少一个第五PATH ID,和至少一个第五目的地址,一个所述第五PATH ID与一个或多个所述第五目的地址存在映射关系,不同的第五PATH ID与不同的第五目的地址存在映射关系,所述第四PATH ID为所述至少一个第五PATH ID中的一个,所述第四目的地址为所述至少一个第五目的地址中的一个。
可选地,在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,第一信息还可以包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,边界节点根据BAP PDU中携带的第三BAP虚拟地址确定该PDU需要进行header rewriting之后,可以基于本地的第四映射表,从中的至少一个第五PATH ID中找到和第四PATH ID相同的第五PATH ID,确定该和第四PATH ID相同的第五PATH ID对应的第五目的地址,即为该第四PATH ID对应的第四目的地址,即可以确定第二拓扑结构中的目的节点的第四目的地址,进而可以将这两个ID重新写入该数据包的BAP header中。
可选地,进行inter-donor routing的PDU的BAP header中可以携带以下信息:
(1)Destination BAP address:边界节点的第三BAP虚拟地址;
(2)第四PATH ID:第二拓扑结构中从该边界节点至目的IAB的PATH ID。
可选地,如果BAP目的地址是该边界节点的逻辑地址,则根据边界节点处的第四映射列表,从中找到与第四PATH ID相同的第五PATH ID;(该四PATH ID是第二拓扑结构下对应的,对应此PDU最终需要传输到的真实目的节点的地址,即第四目的地址)进而可以确定第五PATH ID对应的第五目的地址,即为该第四PATH ID对应的BAP目的地址,即可以将这两个ID重新写入该PDU的BAP header中。
可选地,边界节点可以将改写完header后的BAP PDU重新按照legacy的路由规则找到下一跳节点递交数据,直到路由到BAP header中显示的目的节点处。
可选地,第四映射列表的内容可以包括以下至少一项:
第二拓扑结构下的第五PATH ID;
第五PATH ID对应的第五目的地址;
下一跳节点的IAB地址。
可选地,对于上行而言,边界节点可以维护一套第四映射列表,对于下行而言,边界节点可以维护另一套相同或不同的第四映射列表。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同的情况下,确定数据包的目的节点为所述边界节点;
所述方法还包括:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断该BAP地址是边界节点的虚拟地址,还是真实地址;
可选地,如果边界节点判断确定第一信息中的BAP目的地址和所述边界节点的真实地址相同,即判定BAP header中的BAP目的地址是边界节点的真实地址,即说明该数据包是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,所述第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
可选地,在数据包的目的节点就是边界节点的情况下,第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
可选地,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,还包括:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同的情况下,确定数据包的目的节点不属于第二拓扑结构;
所述方法还包括:
按照协议规定的路由规则传输所述数据包。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是,即边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同,则可以按照legacy行为递交到下一跳(下一个IAB节点)。
可选地,协议规定的路由规则可以是现有的legacy路由规则,也可以是通信协议中规定的路由规则。
可选地,本申请实施例中,提供了一种拓扑冗余场景下的数据路由方法,boundary node根据预先设定的映射规则,将拓扑结构1下的数据包BAP header进行routing ID的改写(re-writing),更改成拓扑结构2 下的routing ID,从而使得数据包能够借由boundary node从拓扑结构1下路由到拓扑结构2,实现inter-donor redundancy下load-balancing的目的。Boundary node无需维护额外的(且复杂的)映射列表,沿用legacy技术中的列表即可;不会减少拓扑结构1中path ID的可使用个数;只需要占用少量的BAP address。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
图8是本申请实施例提供的数据路由方法的流程示意图之二,如图8所示,该方法包括如下步骤:
步骤800,第一拓扑结构中的生成节点生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
步骤810,所述生成节点将所述数据包发送至所述边界节点。
可选地,第一拓扑结构中的数据包是由第一拓扑结构中的生成节点生成的;
可选地,第一拓扑结构中的数据包的包头中包括第一信息,该第一信息可以用于边界节点确定所述数据包的目的节点的归属,即可以用于边界节点区分该数据包是否需要递交给边界节点的高层,还是需要在边界节点进行包头的改写(BAP header re-writing);
可选地,数据包的目的节点的归属对于生成节点来说是已知的。
可选地,边界节点接收到第一拓扑结构中的数据包后,可以基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,即判断该数据包是否需要递交给边界节点的高层,还是需要在边界节点进 行包头的改写;
可选地,若边界节点判断确定数据包的目的节点属于第二拓扑结构的情况下,边界节点可以基于所述第一信息对所述数据包的包头进行改写,并在所述第二拓扑结构中将改写后的数据包传输至所述目的节点,以实现该数据包可以在第二拓扑结构中进行有效传输。
本申请实施例提供的一种拓扑冗余场景下的数据路由方法,边界节点可以在确定数据包的目的节点属于第二拓扑结构的情况下,将第一拓扑结构下的数据包BAP header进行routing ID的改写(re-writing),更改成第二拓扑结构下的routing ID,从而使得数据包能够借由边界节点从第一拓扑结构下路由到第二拓扑结构,实现inter-donor redundancy下load-balancing的目的。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,在所述第一拓扑结构中的生成节点生成数据包之前,所述方法还包括:
所述生成节点确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;
所述生成节点基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
所述生成节点基于本地的第一映射表和第一映射信息,确定第一信息中的第一BAP虚拟地址;
所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述第一BAP虚拟地址相同;
其中,所述第一映射信息包括以下任一项或任意组合:
所述边界节点的真实地址;
所述第一目的地址;
所述第一PATH ID;
其中,所述第一映射表包括至少一个第四BAP虚拟地址和至少一个第二映射信息;一个所述第二映射信息与一个所述第四BAP虚拟地址存在映射关系,不同的所述第二映射信息与不同的第四BAP虚拟地址存在映射关系,所述第一BAP虚拟地址为所述至少一个第四BAP虚拟地址中的一个,所述第一映射信息为所述至少一个第二映射信息中的一个;所述至少一个第四BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述生成节点本地保存一个第一映射表,第一映射表用于确定至少一个边界节点的第一BAP虚拟地址。
可选地,所述生成节点可以首先确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;然后可以基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的PATH ID;并确定需要对该数据包的包头进行改写的边界节点;
可选地,可以基于本地的第一映射信息,在第一映射表中确定第一映射信息对应的第一BAP虚拟地址,第一映射信息可以包括以下任一项或任意组合:
所述边界节点的真实地址;
所述第一目的地址;
所述第一PATH ID。
可选地,以第一映射信息包括边界节点的真实地址和第一PATH ID 为例,所述生成节点可以首先确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;然后可以基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的PATH ID;并确定需要对该数据包的包头进行改写的边界节点,即可以在第一映射表中确定该边界节点的真实地址对应的至少一个第八PATH ID,随即可以从其中确定出与第一PATH ID相同的第八PATH ID,进而确定该与第一PATH ID相同的第八PATH ID对应的第四BAP虚拟地址,作为与第一PATH ID具有映射关系的第一BAP虚拟地址,即可以将数据包的包头中的第一信息中的BAP目的地址设置为与该第一BAP虚拟地址相同。
可选地,生成节点本地存储的第一映射表中映射信息和第四BAP虚拟地址之间的映射关系,与该边界节点本地保存的第二映射表中的第二BAP虚拟地址和第二目的节点信息组之间的映射关系相同。
可选地,第一映射表的生成对象:第一拓扑结构和/或第二拓扑结构下的CU;
可选地,第一映射表可以如下表2所示,可以包括以下至少一项:
(i)边界节点在第一拓扑结构中的真实BAP地址;
(ii)第二拓扑结构中目的IAB节点的BAP地址;
(iii)该边界节点至第二拓扑结构中目的IAB节点的PATH ID;
(iv)边界节点对应上述(i)-(iii)任一项或任意组合的第四BAP虚拟地址。
表2 第一映射表
Figure PCTCN2022108946-appb-000003
Figure PCTCN2022108946-appb-000004
其中,表2仅为第一映射表的示例,并不作为对第一映射表及其内容的限定。可选地,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的真实地址相同。
可选地,在所述数据包的目的节点为所述边界节点的情况下,可以将边界节点的真实地址直接作为生成节点生成的数据包的包头的第一信息中的BAP目的地址。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断该BAP地址是边界节点的虚拟地址,还是真实地址;
可选地,如果边界节点判断确定第一信息中的BAP目的地址和所述边界节点的真实地址相同,即判定BAP header中的BAP目的地址是边界节点的真实地址,即说明该数据是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,本申请实施例中,AP header中可以用1个bit(即第一指示信息)来指示该PDU为to-be-routed packet,且携带的为第二拓扑结构中的path ID。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,生成节点可以生成的数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,用于直接指示给边界节点该数据包需要进行跨拓扑路由。
可选地,本申请实施例中,边界节点可以根据第一信息中的第一指示信息来确定所述数据包的目的节点的归属,即区分是否需要进行header rewriting。
可选地,第一指示信息用于直接指示数据包的目的节点属于第二拓扑结构,即边界节点可以在确定第一信息中包括第一指示信息的情况下,直接确定该数据包的目的节点属于第二拓扑结构,即需要进行header rewriting。
可选地,第一拓扑结构下的生成节点(Donor-DU或者access node)在为需要进行inter-donor routing的数据生成BAP PDU后,该BAP PDU被路由到边界节点时,由边界节点根据BAP PDU中携带的第一指示信息确定该PDU需要进行header rewriting,进而确定该数据包在第二拓扑结构下对应的BAP routing ID,并且将该BAP routing ID重新写入该BAP PDU的header中,在第二拓扑结构中进行传输。
可选地,本申请实施例省略了donor-DU/access node配置to-be-routed data的BAP Routing ID的操作,有效减少数据包路由的复杂度,且节省传输资源。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,生成节点可以生成的数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息时,第一信息还可以包括第二PATH ID,其中,所述第二PATH ID用于指示所 述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包;
其中,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由。
可选地,在所述数据包的目的节点为所述边界节点的情况下,生成节点可以生成的数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第二指示信息,用于直接指示给边界节点该数据包不需要进行跨拓扑路由。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断是否存在第一指示信息指示是否需要进行跨拓扑路由;
可选地,如果存在第二指示信息指示不需要进行跨拓扑路由,则可以说明该数据是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和第三BAP虚拟地址相同,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,本申请实施例中,可以用虚拟的边界节点地址来表示PDU 为to-be-routed packet。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,生成节点生成的数据包的包头中的第一信息中的BAP目的地址可以和第三BAP虚拟地址相同;
可选地,第一拓扑结构下的生成节点(Donor-DU或者access node)在为需要进行inter-donor routing的数据生成BAP PDU后,该BAP PDU被路由到边界节点时,由边界节点根据BAP PDU中携带的第三BAP虚拟地址确定该PDU需要进行header rewriting,进而确定该PDU在第二拓扑结构下对应的BAP routing ID,并且将该BAP routing ID重新写入该BAP PDU的header中,在第二拓扑结构中进行传输。可选地,所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的;即第一拓扑结构和/或第二拓扑结构下的CU可以为边界节点配置1个logical/virtual BAP地址,用于直接指示所在的数据包需要进行跨拓扑路由。
可选地,每个boundary node可以有一个固定的第三BAP虚拟地址;
可选地,每个boundary node可以有2个固定的第三BAP虚拟地址,其中一个针对上行数据的路由,另一个针对下行数据的路由。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,第一信息还可以包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中 的BAP目的地址与所述边界节点的真实地址相同。
可选地,在所述数据包的目的节点为所述边界节点的情况下,生成节点可以生成的数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第三BAP虚拟地址,用于直接指示给边界节点该数据包不需要进行跨拓扑路由。
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是则按照legacy行为递交到下一跳(下一个IAB节点);如果是,则可以进一步判断该BAP地址是边界节点的虚拟地址,还是真实地址;
可选地,如果边界节点判断确定第一信息中的BAP目的地址和所述边界节点的真实地址相同,即判定BAP header中的BAP目的地址是边界节点的真实地址,即说明该数据包是传输给边界节点,而非需要路由到另一个拓扑结构下,则可以将该PDU去除header后递交到该边界节点的BAP层的upper layer。
可选地,在所述数据包的目的节点不属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的地址均不相同。
可选地,在所述数据包的目的节点不属于第二拓扑结构的情况下,生成节点生成的数据包的包头中的第一信息中的BAP目的地址和所述边界节点的地址均不相同;
可选地,边界节点接收到BAP PDU后,可以判断BAP header中的BAP目的地址是否为边界节点的地址;如果不是,即边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同,则可以按照legacy行为递交到下一跳(下一个IAB节点)。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包 的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
需要说明的是,本申请实施例提供的数据路由方法,执行主体可以为数据路由装置,或者,该数据路由装置中的用于执行数据路由方法的控制模块。本申请实施例中以数据路由装置执行数据路由方法为例,说明本申请实施例提供的数据路由装置。
图9是本申请实施例提供的数据路由装置的结构示意图之一,如图9所示,该数据路由装置900包括:第一接收模块910,第一确定模块920,第一改写模块930,和第一传输模块940;其中:
第一接收模块910用于接收第一拓扑结构中的数据包;
第一确定模块920用于基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
第一改写模块930用于在所述数据包的目的节点属于所述第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;
第一传输模块940用于在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
可选地,数据路由装置可以通过第一接收模块910接收第一拓扑结构中的数据包;然后可以基于所述数据包的包头中的第一信息,通过第一确定模块920确定所述数据包的目的节点的归属;随后可以在所述数据包的目的节点属于所述第二拓扑结构的情况下,基于所述第一信息,通过第一改写模块930对所述数据包的包头进行改写;随机可以通过第一传输模块940在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包 的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第一BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一BAP虚拟地址和所述数据包的第一目的节点信息组存在映射关系,所述第一目的节点信息组包括第二拓扑结构中的目的节点的第一目的地址以及第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,所述第一改写模块还用于:
所述边界节点基于本地的第二映射表和所述第一BAP虚拟地址,确定与所述第一BAP虚拟地址存在映射关系的第一目的节点信息组;
基于所述第一目的节点信息组中的第二拓扑结构中的第一目的地址以及第一PATH ID,对所述数据包的包头进行改写;
其中,所述第二映射表包括至少一个第二BAP虚拟地址,和至少一个第二目的节点信息组,一个所述第二BAP虚拟地址与一个或多个所述第二目的节点信息组存在映射关系,不同的第二BAP虚拟地址与不同的第二目的节点信息组存在映射关系,所述第一BAP虚拟地址为所述至少一个第二BAP虚拟地址中的一个,所述第一目的节点信息组为所述至少一个第二目的节点信息组中的一个;所述至少一个第二BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节 点的真实地址相同情况下,确定数据包的目的节点为所述边界节点;
所述装置还包括:
第一去除模块,用于去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,所述第一改写模块还用于:
所述边界节点基于本地的第三映射表和第二PATH ID,确定第二拓扑结构中的目的节点的第二目的地址;
基于所述第二PATH ID和所述第二目的地址,对所述数据包的包头进行改写;
其中,所述第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址,一个所述第三PATH ID与一个或多个所述第三目的地址存在映射关系,不同的第三PATH ID与不同的第三目的地址存在映射关系,所述第二PATH ID为所述至少一个第三PATH ID中的一个,所述第二目的地址为所述至少一个第三目的地址中的一个。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息的情况下,确定 数据包的目的节点为所述边界节点;其中,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由;
所述装置还包括:
第二去除模块,用于去除所述数据包的包头;
第二递交模块,用于将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
所述第一改写模块还用于:
基于本地的第四映射表和第四PATH ID,确定第二拓扑结构中的目的节点的第四目的地址;
基于所述第四PATH ID和所述第四目的地址,对所述数据包的包头进行改写;
其中,所述第四映射表包括至少一个第五PATH ID,和至少一个第五目的地址,一个所述第五PATH ID与一个或多个所述第五目的地址存在映射关系,不同的第五PATH ID与不同的第五目的地址存在映射关系,所述第四PATH ID为所述至少一个第五PATH ID中的一个,所述第四目的地址为所述至少一个第五目的地址中的一个。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节 点的真实地址相同的情况下,确定数据包的目的节点为所述边界节点;
所述装置还包括:
第三去除模块,用于去除所述数据包的包头;
第三递交模块,用于将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,所述第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
可选地,所述第一确定模块还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同的情况下,确定数据包的目的节点不属于第二拓扑结构;
所述装置还包括:
第二传输模块,用于按照协议规定的路由规则传输所述数据包。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
本申请实施例中的数据路由装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
图10是本申请实施例提供的数据路由装置的结构示意图之二,如图10所示,该数据路由装置1000包括:第一生成模块1010,和第一发送模块1020;其中:第一生成模块1010用于在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
第一发送模块1020用于将所述数据包发送至所述边界节点。
可选地,数据路由装置可以通过第一生成模块1010在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;随后通过第一发送模块1020将所述数据包发送至所述边界节点。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,所述装置还包括:
第二确定模块,用于在所述第一拓扑结构中的生成节点生成数据包之前,确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;
第三确定模块,用于基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
第四确定模块,用于基于本地的第一映射表和第一映射信息,确定第一信息中的第一BAP虚拟地址;
所述第一生成模块还用于:
生成数据包,所述数据包的包头中的第一信息中的BAP目的地址和 所述第一BAP虚拟地址相同;
其中,所述第一映射信息包括以下任一项或任意组合:
所述边界节点的真实地址;
所述第一目的地址;
所述第一PATH ID;
其中,所述第一映射表包括至少一个第四BAP虚拟地址和至少一个第二映射信息;一个所述第二映射信息与一个所述第四BAP虚拟地址存在映射关系,不同的所述第二映射信息与不同的第四BAP虚拟地址存在映射关系,所述第一BAP虚拟地址为所述至少一个第四BAP虚拟地址中的一个,所述第一映射信息为所述至少一个第二映射信息中的一个;所述至少一个第四BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的真实地址相同。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点属于第二拓扑结构的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包;
其中,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点属于第二拓扑结构的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和第三BAP虚拟地址相同,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同。
可选地,所述第一生成模块还用于:
在所述数据包的目的节点不属于第二拓扑结构的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的地址均不相同。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
本申请实施例中的数据路由装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电 子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的数据路由装置能够实现图2至图8的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,图11是本申请实施例提供的通信设备的结构示意图,如图11所示,本申请实施例还提供一种通信设备1100,包括处理器1101,存储器1102,存储在存储器1102上并可在所述处理器1101上运行的程序或指令,例如,该通信设备1100为终端时,该程序或指令被处理器1101执行时实现上述数据路由方法实施例的各个过程,且能达到相同的技术效果。该通信设备1100为网络侧设备时,该程序或指令被处理器1101执行时实现上述数据路由方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种边界节点,包括处理器和通信接口,所述通信接口用于:
接收第一拓扑结构中的数据包;
所述处理器用于:
基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
在确定数据包的目的节点属于第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;
所述通信接口还用于:
所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
该边界节点实施例是与上述边界节点方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该边界节点实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种边界节点。图12是本申请实施例提供的边界节点的结构示意图,如图12所示,该边界节点设备1200包括:天线1201、射频装置1202、基带装置1203。天线1201与射频装置1202连接。在上行方向上,射频装置1202通过天线1201接收信息,将接收的信息发送给基带装置1203进行处理。在下行方向上,基带装置1203对要发送的信息进行处理,并发送给射频装置1202,射频装置1202对收到的信息进行处理后经过天线1201发送出去。
上述频带处理装置可以位于基带装置1203中,以上实施例中边界节点执行的方法可以在基带装置1203中实现,该基带装置1203包括处理器1204和存储器1205。
基带装置1203例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图12所示,其中一个芯片例如为处理器1204,与存储器1205连接,以调用存储器1205中的程序,执行以上方法实施例中所示的边界节点操作。
该基带装置1203还可以包括网络接口1206,用于与射频装置1202交互信息,该接口例如为通用公共无线接口(common public radio interface,简称CPRI)。
具体地,本发明实施例的边界节点还包括:存储在存储器1205上并可在处理器1204上运行的指令或程序,处理器1204调用存储器1205中的指令或程序执行图9所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
其中,处理器1204用于:
接收第一拓扑结构中的数据包;
基于所述数据包的包头中的第一信息,确定所述数据包的目的节点 的归属;
在所述数据包的目的节点属于所述第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;
在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第一BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一BAP虚拟地址和所述数据包的第一目的节点信息组存在映射关系,所述第一目的节点信息组包括第二拓扑结构中的目的节点的第一目的地址以及第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,处理器1204还用于:
基于本地的第二映射表和所述第一BAP虚拟地址,确定与所述第一BAP虚拟地址存在映射关系的第一目的节点信息组;
基于所述第一目的节点信息组中的第二拓扑结构中的第一目的地址以及第一PATH ID,对所述数据包的包头进行改写;
其中,所述第二映射表包括至少一个第二BAP虚拟地址,和至少一个第二目的节点信息组,一个所述第二BAP虚拟地址与一个或多个所述第二目的节点信息组存在映射关系,不同的第二BAP虚拟地址与不同的第二目的节点信息组存在映射关系,所述第一BAP虚拟地址为所述至少 一个第二BAP虚拟地址中的一个,所述第一目的节点信息组为所述至少一个第二目的节点信息组中的一个;所述至少一个第二BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同情况下,确定数据包的目的节点为所述边界节点;
处理器1204还用于:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,处理器1204还用于:
基于本地的第三映射表和第二PATH ID,确定第二拓扑结构中的目的节点的第二目的地址;
基于所述第二PATH ID和所述第二目的地址,对所述数据包的包头进行改写;
其中,所述第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址,一个所述第三PATH ID与一个或多个所述第三目的地址存 在映射关系,不同的第三PATH ID与不同的第三目的地址存在映射关系,所述第二PATH ID为所述至少一个第三PATH ID中的一个,所述第二目的地址为所述至少一个第三目的地址中的一个。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息的情况下,确定数据包的目的节点为所述边界节点;其中,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由;
处理器1204还用于:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
其中,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
处理器1204还用于:
基于本地的第四映射表和第四PATH ID,确定第二拓扑结构中的目的节点的第四目的地址;
基于所述第四PATH ID和所述第四目的地址,对所述数据包的包头进行改写;
其中,所述第四映射表包括至少一个第五PATH ID,和至少一个第 五目的地址,一个所述第五PATH ID与一个或多个所述第五目的地址存在映射关系,不同的第五PATH ID与不同的第五目的地址存在映射关系,所述第四PATH ID为所述至少一个第五PATH ID中的一个,所述第四目的地址为所述至少一个第五目的地址中的一个。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同的情况下,确定数据包的目的节点为所述边界节点;
处理器1204还用于:
去除所述数据包的包头;
将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
可选地,所述第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
可选地,处理器1204还用于:
在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同的情况下,确定数据包的目的节点不属于第二拓扑结构;
处理器1204还用于:
按照协议规定的路由规则传输所述数据包。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
本申请实施例还提供一种生成节点,包括处理器和通信接口,所述 处理器用于:
在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
所述通信接口用于:
将所述数据包发送至所述边界节点。
该生成节点设备实施例是与上述生成节点方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该生成节点实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种生成节点。图13是本申请实施例提供的生成节点的结构示意图,如图13所示,该生成节点1300包括:天线1301、射频装置1302、基带装置1303。天线1301与射频装置1302连接。在上行方向上,射频装置1302通过天线1301接收信息,将接收的信息发送给基带装置1303进行处理。在下行方向上,基带装置1303对要发送的信息进行处理,并发送给射频装置1302,射频装置1302对收到的信息进行处理后经过天线1301发送出去。
上述频带处理装置可以位于基带装置1303中,以上实施例中生成节点执行的方法可以在基带装置1303中实现,该基带装置1303包括处理器1304和存储器1305。
基带装置1303例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图13所示,其中一个芯片例如为处理器1304,与存储器1305连接,以调用存储器1305中的程序,执行以上方法实施例中所示的生成节点操作。
该基带装置1303还可以包括网络接口1306,用于与射频装置1302交互信息,该接口例如为通用公共无线接口(common public radio interface,简称CPRI)。
具体地,本发明实施例的生成节点还包括:存储在存储器1305上并可在处理器1304上运行的指令或程序,处理器1304调用存储器y5中的 指令或程序执行图10所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
其中,处理器1304用于:
在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
将所述数据包发送至所述边界节点。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
可选地,处理器1304还用于:
在所述数据包的目的节点属于第二拓扑结构的情况下,确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;
基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
基于本地的第一映射表和第一映射信息,确定第一信息中的第一BAP虚拟地址;
处理器1304还用于:
生成数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述第一BAP虚拟地址相同;
其中,所述第一映射信息包括以下任一项或任意组合:
所述边界节点的真实地址;
所述第一目的地址;
所述第一PATH ID;
其中,所述第一映射表包括至少一个第四BAP虚拟地址和至少一个 第二映射信息;一个所述第二映射信息与一个所述第四BAP虚拟地址存在映射关系,不同的所述第二映射信息与不同的第四BAP虚拟地址存在映射关系,所述第一BAP虚拟地址为所述至少一个第四BAP虚拟地址中的一个,所述第一映射信息为所述至少一个第二映射信息中的一个;所述至少一个第四BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,在所述数据包的目的节点为所述边界节点的情况下,处理器1304还用于:
所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的真实地址相同。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,处理器1304还用于:
生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
可选地,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述数据包的目的节点为所述边界节点的情况下,处理器1304还用于:
生成所述数据包;
其中,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由。
可选地,在所述数据包的目的节点属于第二拓扑结构的情况下,处理器1304还用于:
生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地 址和第三BAP虚拟地址相同,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
可选地,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
可选地,在所述数据包的目的节点为所述边界节点的情况下,处理器1304还用于:
生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同。
可选地,在所述数据包的目的节点不属于第二拓扑结构的情况下,处理器1304还用于:
生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的地址均不相同。
在本申请实施例中,通过边界节点基于第一拓扑结构中数据包的包头中的第一信息,确定所述数据包的目的节点的归属;并在确定数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;并将改写后的数据包传输至目的节点,保证边界节点可以从接收到的数据包的包头中直接区分出该数据是否需要路由到第二拓扑结构,减少数据路由的难度,节省资源。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述数据路由方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory, RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述数据路由方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非瞬态的存储介质中,所述程序/程序产品被至少一个处理器执行以实现上述系统消息报告的上报方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。

Claims (50)

  1. 一种数据路由方法,包括:
    边界节点接收第一拓扑结构中的数据包;
    所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
    在所述数据包的目的节点属于第二拓扑结构的情况下,所述边界节点基于所述第一信息,对所述数据包的包头进行改写;
    所述边界节点在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
  2. 根据权利要求1所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
    在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第一BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
    其中,所述第一BAP虚拟地址和所述数据包的第一目的节点信息组存在映射关系,所述第一目的节点信息组包括第二拓扑结构中的目的节点的第一目的地址以及第一路径标识PATH ID,第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  3. 根据权利要求2所述的数据路由方法,其中,所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
    所述边界节点基于本地的第二映射表和所述第一BAP虚拟地址,确定与所述第一BAP虚拟地址存在映射关系的第一目的节点信息组;
    基于所述第一目的节点信息组中的第二拓扑结构中的第一目的地址以及第一PATH ID,对所述数据包的包头进行改写;
    其中,所述第二映射表包括至少一个第二BAP虚拟地址,和至少一 个第二目的节点信息组,一个所述第二BAP虚拟地址与一个或多个所述第二目的节点信息组存在映射关系,不同的第二BAP虚拟地址与不同的第二目的节点信息组存在映射关系,所述第一BAP虚拟地址为所述至少一个第二BAP虚拟地址中的一个,所述第一目的节点信息组为所述至少一个第二目的节点信息组中的一个;所述至少一个第二BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  4. 根据权利要求2所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,还包括:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同情况下,确定数据包的目的节点为所述边界节点;
    所述方法还包括:
    去除所述数据包的包头;
    将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  5. 根据权利要求1所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
    在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息的情况下,确定数据包的目的节点属于第二拓扑结构;
    其中,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
  6. 根据权利要求5所述的数据路由方法,其中,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  7. 根据权利要求6所述的数据路由方法,其中,所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
    所述边界节点基于本地的第三映射表和第二PATH ID,确定第二拓扑结构中的目的节点的第二目的地址;
    基于所述第二PATH ID和所述第二目的地址,对所述数据包的包头进行改写;
    其中,所述第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址,一个所述第三PATH ID与一个或多个所述第三目的地址存在映射关系,不同的第三PATH ID与不同的第三目的地址存在映射关系,所述第二PATH ID为所述至少一个第三PATH ID中的一个,所述第二目的地址为所述至少一个第三目的地址中的一个。
  8. 根据权利要求5所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,还包括:
    在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息的情况下,确定数据包的目的节点为所述边界节点;其中,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由;
    所述方法还包括:
    去除所述数据包的包头;
    将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  9. 根据权利要求1所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
    在所述边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,确定数据包的目 的节点属于第二拓扑结构;
    其中,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  10. 根据权利要求9所述的数据路由方法,其中,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
    所述边界节点基于所述第一信息,对所述数据包的包头进行改写,包括:
    所述边界节点基于本地的第四映射表和第四PATH ID,确定第二拓扑结构中的目的节点的第四目的地址;
    基于所述第四PATH ID和所述第四目的地址,对所述数据包的包头进行改写;
    其中,所述第四映射表包括至少一个第五PATH ID,和至少一个第五目的地址,一个所述第五PATH ID与一个或多个所述第五目的地址存在映射关系,不同的第五PATH ID与不同的第五目的地址存在映射关系,所述第四PATH ID为所述至少一个第五PATH ID中的一个,所述第四目的地址为所述至少一个第五目的地址中的一个。
  11. 根据权利要求9所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,包括:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同的情况下,确定数据包的目的节点为所述边界节点;
    所述方法还包括:
    去除所述数据包的包头;
    将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  12. 根据权利要求11所述的数据路由方法,其中,所述第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
  13. 根据权利要求2至12任一项所述的数据路由方法,其中,所述边界节点基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属,还包括:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同的情况下,确定数据包的目的节点不属于第二拓扑结构;
    所述方法还包括:
    按照协议规定的路由规则传输所述数据包。
  14. 一种数据路由方法,包括:
    第一拓扑结构中的生成节点生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
    所述生成节点将所述数据包发送至边界节点。
  15. 根据权利要求14所述的数据路由方法,其中,在所述数据包的目的节点属于第二拓扑结构的情况下,在所述第一拓扑结构中的生成节点生成数据包之前,所述方法还包括:
    所述生成节点确定所述数据包在所述第二拓扑结构的目的节点的第一目的地址;
    所述生成节点基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
    所述生成节点基于本地的第一映射表和第一映射信息,确定第一信息中的第一BAP虚拟地址;
    所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中 的BAP目的地址和所述第一BAP虚拟地址相同;
    其中,所述第一映射信息包括以下任一项或任意组合:
    所述边界节点的真实地址;
    所述第一目的地址;
    所述第一PATH ID;
    其中,所述第一映射表包括至少一个第四BAP虚拟地址和至少一个第二映射信息;一个所述第二映射信息与一个所述第四BAP虚拟地址存在映射关系,不同的所述第二映射信息与不同的第四BAP虚拟地址存在映射关系,所述第一BAP虚拟地址为所述至少一个第四BAP虚拟地址中的一个,所述第一映射信息为所述至少一个第二映射信息中的一个;所述至少一个第四BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  16. 根据权利要求15所述的数据路由方法,其中,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的真实地址相同。
  17. 根据权利要求14所述的数据路由方法,其中,在所述数据包的目的节点属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
  18. 根据权利要求17所述的数据路由方法,其中,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  19. 根据权利要求17所述的数据路由方法,其中,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包;
    其中,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由。
  20. 根据权利要求14所述的数据路由方法,其中,在所述数据包的目的节点属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和第三BAP虚拟地址相同,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  21. 根据权利要求20所述的数据路由方法,其中,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  22. 根据权利要求20所述的数据路由方法,其中,在所述数据包的目的节点为所述边界节点的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同。
  23. 根据权利要求15至22任一项所述的数据路由方法,其中,在所述数据包的目的节点不属于第二拓扑结构的情况下,所述第一拓扑结构中的生成节点生成数据包,包括:
    所述生成节点生成所述数据包,所述数据包的包头中的第一信息中 的BAP目的地址和所述边界节点的地址均不相同。
  24. 一种数据路由装置,包括:
    第一接收模块,用于接收第一拓扑结构中的数据包;
    第一确定模块,用于基于所述数据包的包头中的第一信息,确定所述数据包的目的节点的归属;
    第一改写模块,用于在所述数据包的目的节点属于第二拓扑结构的情况下,基于所述第一信息,对所述数据包的包头进行改写;
    第一传输模块,用于在所述第二拓扑结构中将改写后的数据包传输至所述目的节点。
  25. 根据权利要求24所述的数据路由装置,其中,所述第一确定模块还用于:
    在边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第一BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
    其中,所述第一BAP虚拟地址和所述数据包的第一目的节点信息组存在映射关系,所述第一目的节点信息组包括第二拓扑结构中的目的节点的第一目的地址以及第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  26. 根据权利要求25所述的数据路由装置,其中,所述第一改写模块还用于:
    所述边界节点基于本地的第二映射表和所述第一BAP虚拟地址,确定与所述第一BAP虚拟地址存在映射关系的第一目的节点信息组;
    基于所述第一目的节点信息组中的第二拓扑结构中的第一目的地址以及第一PATH ID,对所述数据包的包头进行改写;
    其中,所述第二映射表包括至少一个第二BAP虚拟地址,和至少一个第二目的节点信息组,一个所述第二BAP虚拟地址与一个或多个所述第二目的节点信息组存在映射关系,不同的第二BAP虚拟地址与不同的 第二目的节点信息组存在映射关系,所述第一BAP虚拟地址为所述至少一个第二BAP虚拟地址中的一个,所述第一目的节点信息组为所述至少一个第二目的节点信息组中的一个;所述至少一个第二BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  27. 根据权利要求25所述的数据路由装置,其中,所述第一确定模块还用于:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同情况下,确定数据包的目的节点为所述边界节点;
    所述装置还包括:
    第一去除模块,用于去除所述数据包的包头;
    第一递交模块,用于将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  28. 根据权利要求24所述的数据路由装置,其中,所述第一确定模块还用于:
    在边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息的情况下,确定数据包的目的节点属于第二拓扑结构;
    其中,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
  29. 根据权利要求28所述的数据路由装置,其中,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  30. 根据权利要求29所述的数据路由装置,其中,所述第一改写模块还用于:
    所述边界节点基于本地的第三映射表和第二PATH ID,确定第二拓扑结构中的目的节点的第二目的地址;
    基于所述第二PATH ID和所述第二目的地址,对所述数据包的包头进行改写;
    其中,所述第三映射表包括至少一个第三PATH ID,和至少一个第三目的地址,一个所述第三PATH ID与一个或多个所述第三目的地址存在映射关系,不同的第三PATH ID与不同的第三目的地址存在映射关系,所述第二PATH ID为所述至少一个第三PATH ID中的一个,所述第二目的地址为所述至少一个第三目的地址中的一个。
  31. 根据权利要求28所述的数据路由装置,其中,所述第一确定模块还用于:
    在所述边界节点确定所述第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息的情况下,确定数据包的目的节点为所述边界节点;其中,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由;
    所述装置还包括:
    第二去除模块,用于去除所述数据包的包头;
    第二递交模块,用于将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  32. 根据权利要求24所述的数据路由装置,其中,所述第一确定模块还用于:
    在边界节点确定所述第一信息中的回传适配协议层BAP目的地址和所述边界节点的第三BAP虚拟地址相同的情况下,确定数据包的目的节点属于第二拓扑结构;
    其中,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  33. 根据权利要求32所述的数据路由装置,其中,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所 述边界节点到所述目的节点的路由路径;
    所述第一改写模块还用于:
    基于本地的第四映射表和第四PATH ID,确定第二拓扑结构中的目的节点的第四目的地址;
    基于所述第四PATH ID和所述第四目的地址,对所述数据包的包头进行改写;
    其中,所述第四映射表包括至少一个第五PATH ID,和至少一个第五目的地址,一个所述第五PATH ID与一个或多个所述第五目的地址存在映射关系,不同的第五PATH ID与不同的第五目的地址存在映射关系,所述第四PATH ID为所述至少一个第五PATH ID中的一个,所述第四目的地址为所述至少一个第五目的地址中的一个。
  34. 根据权利要求32所述的数据路由装置,其中,所述第一确定模块还用于:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的真实地址相同的情况下,确定数据包的目的节点为所述边界节点;
    所述装置还包括:
    第三去除模块,用于去除所述数据包的包头;
    第三递交模块,用于将去除包头后的数据包递交至所述边界节点的BAP层的高层upper layer。
  35. 根据权利要求34所述的数据路由装置,其中,所述第一信息还包括第七PATH ID,所述第七PATH ID用于指示所述第一拓扑结构中所述数据包的生成节点到所述边界节点的路由路径。
  36. 根据权利要求25至35任一项所述的数据路由装置,其中,所述第一确定模块还用于:
    在所述边界节点确定所述第一信息中的BAP目的地址和所述边界节点的地址均不相同的情况下,确定数据包的目的节点不属于第二拓扑结构;
    所述装置还包括:
    第二传输模块,用于按照协议规定的路由规则传输所述数据包。
  37. 一种数据路由装置,包括:
    第一生成模块,用于在第一拓扑结构中生成数据包,所述数据包的包头包括第一信息,所述第一信息用于指示所述数据包的目的节点的归属;
    第一发送模块,用于将所述数据包发送至边界节点。
  38. 根据权利要求37所述的数据路由装置,其中,所述装置还包括:
    第二确定模块,用于在所述第一拓扑结构中的生成节点生成数据包之前,确定所述数据包在第二拓扑结构的目的节点的第一目的地址;
    第三确定模块,用于基于所述第一目的地址确定第一PATH ID,所述第一PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径;
    第四确定模块,用于基于本地的第一映射表和第一映射信息,确定第一信息中的第一BAP虚拟地址;
    所述第一生成模块,还用于:
    生成数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述第一BAP虚拟地址相同;
    其中,所述第一映射信息包括以下任一项或任意组合:
    所述边界节点的真实地址;
    所述第一目的地址;
    所述第一PATH ID;
    其中,所述第一映射表包括至少一个第四BAP虚拟地址和至少一个第二映射信息;一个所述第二映射信息与一个所述第四BAP虚拟地址存在映射关系,不同的所述第二映射信息与不同的第四BAP虚拟地址存在映射关系,所述第一BAP虚拟地址为所述至少一个第四BAP虚拟地址 中的一个,所述第一映射信息为所述至少一个第二映射信息中的一个;所述至少一个第四BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  39. 根据权利要求38所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的真实地址相同。
  40. 根据权利要求37所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点属于第二拓扑结构的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相相同,且所述第一信息包括第一指示信息,所述第一指示信息用于直接指示所述数据包需要进行跨拓扑路由。
  41. 根据权利要求40所述的数据路由装置,其中,所述第一信息还包括第二PATH ID,其中,所述第二PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  42. 根据权利要求40所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包;
    其中,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同,且所述第一信息包括第二指示信息,所述第二指示信息用于直接指示所述数据包不需要进行跨拓扑路由。
  43. 根据权利要求37所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点属于第二拓扑结构的情况下,生成所述数 据包,所述数据包的包头中的第一信息中的BAP目的地址和第三BAP虚拟地址相同,所述第三BAP虚拟地址用于表示所述数据包需要进行跨拓扑路由;所述第三BAP虚拟地址是第一拓扑结构下的第一集中单元CU或第二拓扑结构下的第二集中单元CU为所述边界节点配置的。
  44. 根据权利要求43所述的数据路由装置,其中,所述第一信息还包括第四PATH ID,所述第四PATH ID用于指示所述第二拓扑结构中所述边界节点到所述目的节点的路由路径。
  45. 根据权利要求43所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点为所述边界节点的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址与所述边界节点的真实地址相同。
  46. 根据权利要求38至45任一项所述的数据路由装置,其中,所述第一生成模块还用于:
    在所述数据包的目的节点不属于第二拓扑结构的情况下,生成所述数据包,所述数据包的包头中的第一信息中的BAP目的地址和所述边界节点的地址均不相同。
  47. 一种边界节点,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至13任一项所述的数据路由方法的步骤。
  48. 一种生成节点,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求14至23任一项所述的数据路由方法的步骤。
  49. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1-13任一项所述的数据路由方法,或者实现如权利要求14至23任一项所述的数据路由方法的步骤。
  50. 一种计算机程序,所述计算机程序被存储在非瞬态的存储介质中, 所述计算机程序被至少一个处理器执行以实现如权利要求1-13任一项所述的数据路由方法,或者实现如权利要求14至23任一项所述的数据路由方法的步骤。
PCT/CN2022/108946 2021-08-04 2022-07-29 数据路由方法、装置、节点及存储介质 WO2023011345A1 (zh)

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