WO2019218813A1 - 路由方法及装置 - Google Patents

路由方法及装置 Download PDF

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Publication number
WO2019218813A1
WO2019218813A1 PCT/CN2019/082157 CN2019082157W WO2019218813A1 WO 2019218813 A1 WO2019218813 A1 WO 2019218813A1 CN 2019082157 W CN2019082157 W CN 2019082157W WO 2019218813 A1 WO2019218813 A1 WO 2019218813A1
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WO
WIPO (PCT)
Prior art keywords
data packet
forwarding
data
node
information
Prior art date
Application number
PCT/CN2019/082157
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English (en)
French (fr)
Inventor
朱元萍
刘菁
戴明增
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19803918.2A priority Critical patent/EP3780671B1/en
Publication of WO2019218813A1 publication Critical patent/WO2019218813A1/zh
Priority to US17/098,103 priority patent/US11792124B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/16—Multipoint routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for wireless communications.
  • V2V Vehicle to Vehicle
  • V2I Vehicle to Infrastructure
  • V2P Vehicle to Pedestrian
  • V2N Vehicle to Pedestrian
  • V2X communication where X stands for anything.
  • the network used for V2X communication is called the car network.
  • V2X communication based on Long Term Evolution (LTE) or 5th Generation (5G) New Radio (NR). Due to traffic safety considerations, cellular network-based V2X communication has a high demand for transmission reliability and real-time performance. For example, V2X communication requires 99.999% transmission reliability and ultra-low latency from end to end as low as 1ms. It can be seen that V2X communication imposes extremely high requirements on cellular communication.
  • LTE Long Term Evolution
  • 5G 5th Generation
  • NR New Radio
  • the embodiment of the present application provides a method and an apparatus for wireless communication.
  • an embodiment of the present application provides a method for wireless communication, including:
  • At least two forwarding nodes receive a first data packet from the source node; the first data packet includes service data, information of a forwarding node set of the first data packet, and information of a destination node; the first data The set of forwarding nodes of the packet includes the at least two forwarding nodes, and the information of the destination node identifies a destination node set and/or a destination node;
  • At least one of the at least two forwarding nodes sends a second data packet; the second data packet includes the service data, the information of the forwarding node set of the second data packet, and the destination node information.
  • the method provided in the embodiment of the present invention implements multi-hop transmission in a cellular wireless communication network by introducing a multicast routing method that does not need to maintain routing information in a cellular wireless communication network, and solves a direct communication distance between terminals through a single hop link. Shorter question.
  • At least two of the at least two forwarding nodes send the second data packet.
  • the destination node can obtain multiple copies of the received signal, thereby enhancing the data reception reliability of the destination node and achieving the requirement of high reliable reception in multi-hop transmission.
  • the information of the forwarding node set of the first data packet identifies a forwarding node set of the first data packet.
  • the information of the forwarding node set of the first data packet is a multicast or broadcast address of the forwarding node set of the first data packet.
  • the information of the destination node does not identify at least one of the at least two forwarding nodes; the at least one of the at least two forwarding nodes is at a forwarding protocol layer and the forwarding protocol
  • the protocol layer below the layer receives the first data packet, and the forwarding protocol layer is any one of the following: a medium access control MAC protocol layer, a radio link control RLC protocol layer, a packet data convergence protocol PDCP protocol layer, and service data.
  • Adaptation protocol SDAP protocol layer is any one of the following: a medium access control MAC protocol layer, a radio link control RLC protocol layer, a packet data convergence protocol PDCP protocol layer, and service data.
  • Adaptation protocol SDAP protocol layer Adaptation protocol SDAP protocol layer.
  • the at least one of the at least two forwarding nodes receives the first data packet at a protocol layer below the MAC protocol layer and the MAC protocol layer, without further Parsing the service data in the first data packet, thereby simplifying the processing flow and improving the security protection of the service data at the forwarding node.
  • the information of the destination node identifies at least one forwarding node of the at least two forwarding nodes; the at least one of the at least two forwarding nodes is at a forwarding protocol layer and the forwarding protocol layer
  • the following protocol layer receives the first data packet, and the at least one of the at least two forwarding nodes acquires the service data at a protocol layer above the forwarding protocol layer, where the forwarding protocol layer is as follows Any one of them: medium access control MAC protocol layer, radio link control RLC protocol layer, packet data convergence protocol PDCP protocol layer, and service data adaptation protocol SDAP protocol layer.
  • the at least one of the at least two forwarding nodes receives the first data packet at a protocol layer below the MAC protocol layer and the MAC protocol layer, and is in the MAC
  • the protocol layer (for example, the RLC protocol layer and/or the PDCP protocol layer) above the protocol layer acquires the service data, so that the forwarding and parsing of the service data can be successfully completed when one node is both the forwarding node and the destination node.
  • the first data packet includes time information, where the time information includes valid time information of the service data and/or sending time information of the second data packet.
  • the valid time information of the service data is used to identify the valid time of the service data, and at least one of the at least two forwarding nodes may determine that the service data is at the current time according to the valid time information of the service data. is it effective.
  • the sending time information of the second data packet is used to identify a sending time of the second data packet, and at least one of the at least two forwarding nodes may determine the first information according to the sending time information of the second data packet. The time when the two packets are sent.
  • the time information includes valid time information of the service data, and at least one of the at least two forwarding nodes determines the first according to valid time information of the service data.
  • the service data in the data packet is valid, and the second data packet is sent.
  • the time information includes valid time information of the service data, and at least one of the at least two forwarding nodes determines the first according to valid time information of the service data.
  • the service data of a data packet is valid, and the service data is stored.
  • the forwarding node can be obtained from the previous hop node when the service data needs to be retransmitted or re-transmitted, and the forwarding speed is improved.
  • the time information includes sending time information of the second data packet, and at least one of the at least two forwarding nodes is configured according to sending time information of the second data packet. Determining a transmission time of the second data packet.
  • the embodiment may be used to indicate that the node sends the second data packet at a predetermined time, for example, the service data that is not sensitive to the delay or has a low delay requirement, and may use the sending time information of the second data packet to indicate the node.
  • the second data packet is sent when the air interface resource is idle, thereby improving the utilization of the air interface resource; or, by using the implementation method, the time for cooperatively forwarding the multiple nodes can be coordinated, so that the destination node can be made more accurate. Receive forwarded business data to increase collaboration gains.
  • the time information includes sending time information of the second data packet, and at least one of the at least two forwarding nodes is configured according to sending time information of the second data packet. Determining the transmission time of the second data packet is not reached, and storing the service data of the second data packet.
  • the forwarding node obtains the service data of the second data packet before the sending time of the second data packet, the service data may be stored, so that after the sending time of the second data packet arrives, Can be sent directly, improving the speed of forwarding business data.
  • the second data packet includes time information, where the time information includes valid time information of the service data.
  • the valid time information of the service data is used to identify the valid time of the service data, and at least one destination node and/or the destination node in the set of destination nodes may determine the validity according to the valid time information of the service data. Whether the business data is valid at the current time.
  • the first data packet includes a sequence number of the first data packet, and the sequence number of the first data packet is used to identify or index the first data packet.
  • the first data packet includes a sequence number of the first data packet. At least one of the at least two forwarding nodes determines that the service data in the first data packet is not forwarded according to the sequence number of the first data packet, and sends the second data packet.
  • the forwarding node can be prevented from repeatedly forwarding the same service data, thereby improving forwarding efficiency and avoiding waste of air interface resources caused by repeated forwarding.
  • the second data packet includes a sequence number of the second data packet, and the sequence number of the second data packet is used to identify or index the second data packet.
  • the first data packet includes source node information of the first data packet, and source node information of the first data packet identifies the source node.
  • the first data packet includes a sequence number of the first data packet and source node information of the first data packet, and at least one of the at least two forwarding nodes is configured according to the The sequence number of a data packet and the source node information of the first data packet determine that the service data in the first data packet is not forwarded, and the second data packet is sent.
  • the forwarding node can be prevented from repeatedly forwarding the same service data, thereby improving forwarding efficiency and avoiding waste of air interface resources caused by repeated forwarding.
  • the first data packet includes a sequence number of the first data packet and source node information of the first data packet, and at least one of the at least two forwarding nodes is configured according to the The sequence number of the first data packet, the source node information of the first data packet, and the information of the destination node included in the first data packet determine that the service data in the first data packet is not forwarded, and send the Two packets.
  • the forwarding node can be prevented from repeatedly forwarding the same service data, thereby improving forwarding efficiency and avoiding waste of air interface resources caused by repeated forwarding.
  • the second data packet includes source node information of the second data packet, and source node information of the second data packet identifies the source node.
  • the first data packet includes a maximum number of forwardings of the service data, and a maximum number of forwarding times of the service data is used to determine a number of times the service data is allowed to be forwarded.
  • the first data packet includes a maximum number of forwarding times of service data, and at least one of the at least two forwarding nodes determines that a maximum number of forwarding times of the service data is greater than zero, and sends The second data packet.
  • the number of reasonable forwarding of the service data can be controlled, and the number of forwarding times is too large, so that the service data is over-forwarded and the air interface resource is wasted.
  • the number of reasonable forwarding of the service data can be controlled, and the number of forwarding times is too large, so that the service data is over-forwarded and the air interface resource is wasted.
  • the second data packet includes a maximum number of forwardings of the service data, and a maximum number of forwarding times of the service data is used to determine a number of times the service data is allowed to be forwarded.
  • the first data packet includes local node information that sends the first data packet, and the local node information that sends the first data packet identifies a node that sends the first data packet.
  • the local node information that sends the first data packet identifies the source node.
  • the reverse routing information can be obtained more conveniently, that is, the node can directly obtain the information of the previous hop node (ie, the source node) (for example, the address information of the previous hop node), so that when it is needed from the When a node sends information to its previous hop node (ie, the source node), the information of the previous hop node (ie, the source node) can be directly used, thereby improving the efficiency of routing.
  • the second data packet includes the local node information that sends the second data packet, where the local node information that sends the second data packet identifies one of the at least two forwarding nodes, and the one forwarding The node is a forwarding node that sends the second data packet.
  • the reverse routing information can be obtained more conveniently, that is, the node can directly obtain the information of the previous hop node (ie, the node that sends the second data packet) (for example, the address information of the previous hop node).
  • the information of the previous hop node may be directly used, thereby Improve the efficiency of routing.
  • the first data packet includes a QoS requirement of the first data packet, and a QoS requirement of the first data packet identifies a priority requirement and/or a reliability requirement of the service data of the first data packet.
  • the second data packet includes a QoS requirement of the second data packet, and a QoS requirement of the second data packet identifies a priority requirement and/or a reliability requirement of the service data of the second data packet.
  • the information of the forwarding node set of the second data packet further identifies a non-destination node set and/or a non-destination node, and the non-destination node set includes at least one non-destination node.
  • the information of the forwarding node set of the second data packet identifies the destination node set and the non-destination node set.
  • the at least one non-destination node included in the non-destination node set receives the second data packet, and the service data of the second data packet is included in the third data packet and sent to the destination node. .
  • the number of the service data received by the destination node and/or the signal strength can be further increased, thereby improving the reliability of the data transmission.
  • At least one of the at least two forwarding nodes stores the second data packet before the second data packet is correctly received by the at least one destination node and/or the destination node in the destination node set.
  • Business data can temporarily store the service data before the destination node successfully receives the service data, so that the forwarding data needs to be acquired from the previous hop node when the service data needs to be retransmitted or re-transmitted, thereby improving the forwarding speed. .
  • an embodiment of the present application provides a method for wireless communication, including:
  • the source node sends a first data packet, where the first data packet includes service data, information of a forwarding node set of the first data packet, and information of a destination node; the forwarding node set of the first data packet includes the At least two forwarding nodes, the information of the destination node identifying a destination node set and/or a destination node.
  • the source node receives the indication information sent by the network device, and determines information about the set of forwarding nodes of the first data packet according to the indication information.
  • the indication information includes a multicast or broadcast address of a set of forwarding nodes of the first data packet.
  • the method provided by the embodiment of the present invention enables multi-hop transmission in a cellular wireless communication network by introducing a multicast routing method that does not need to maintain routing information in a cellular wireless communication network, thereby facilitating solving a single-hop chain between terminals.
  • an embodiment of the present application provides a method for wireless communication, including:
  • the network device sends indication information for the source node to determine information of the forwarding node set of the first data packet.
  • the indication information includes a multicast or broadcast address of a set of forwarding nodes of the first data packet.
  • the method provided in the embodiment of the present application enables multi-hop transmission in a cellular wireless communication network by introducing a multicast routing method that does not need to maintain routing information in a cellular wireless communication network, thereby directly solving a single-hop link between terminals.
  • the problem of insufficient communication range lays the foundation.
  • the embodiment of the present application provides a communication device, where the communication device has the function of implementing the forwarding node involved in the foregoing first aspect, for example, the communication device includes the forwarding node performing the steps involved in the foregoing first aspect.
  • the corresponding modules or units or means, the functions or units or means can be implemented by software, or by hardware, or by corresponding software implementation by hardware.
  • the communication device has a function of implementing the source node according to the second aspect described above or a function of the network device according to the third aspect.
  • an embodiment of the present application provides a communication device, including: a processor, and a memory, where the memory is used to store a program, when the program is executed by the processor, causing the communication device to perform the first aspect
  • a communication device including: a processor, and a memory, where the memory is used to store a program, when the program is executed by the processor, causing the communication device to perform the first aspect
  • the embodiment of the present application provides a storage medium, where the computer program is stored, and when the computer program is executed by the processor, the method of the first aspect, the second aspect, or the third aspect, and any one of the foregoing Implementation.
  • the embodiment of the present application provides a chip system, including: a processor, configured to support a communication device, to implement the method of the first aspect, the second aspect, or the third aspect, and any one of the embodiments.
  • the embodiment of the present application provides a communication system, comprising: the communication device according to the fourth aspect or the fifth aspect, or the storage medium according to the sixth aspect.
  • FIG. 1 is a schematic block diagram of a communication system applied to the present application
  • FIG. 2 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application
  • FIG. 3A is a schematic diagram of a scenario applicable to an embodiment of the present application.
  • FIG. 3B is a schematic diagram of another scenario applicable to an embodiment of the present application.
  • 4A is a schematic diagram of a first data packet according to an embodiment of the present application.
  • 4B is a schematic diagram of another first data packet according to an embodiment of the present application.
  • FIG. 5A is a schematic diagram of a protocol layer data flow direction according to an embodiment of the present application.
  • FIG. 5B is a schematic diagram of another protocol layer data flow direction according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of still another scenario applicable to the embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another routing method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a system 10 suitable for use with embodiments of the present application.
  • the system shown in Figure 1 can be a V2X communication system.
  • the communication system 10 includes at least three terminals, such as a terminal 11, a terminal 12, and a terminal 13.
  • the terminal 11 and the terminal 12 can communicate through a direct link, and the terminal 11 and the terminal 13 can communicate through a direct link. That is to say, the terminal 11 and the terminal 12 can directly communicate with each other without the network side relaying.
  • the terminal 11 and the terminal 13 can directly communicate with each other without the network side relaying.
  • the system 10 may further include a network device 14, and the network device 140 and each terminal may perform data communication through a wireless connection.
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • TDMA frequency division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • LTE long term evolution
  • new radio, NR new radio, NR
  • WiFi wireless-fidelity
  • WiMAX worldwide interoperability for microwave access
  • 3GPP 3rd generation partnership project
  • the network device may be any device having a wireless transceiving function. Including but not limited to: Global System for Mobile (GSM) or base transceiver station (BTS) in CDMA, base station (NodeB) in WCDMA, evolved base station in LTE (NodeB or eNB or e -NodeB, evolutional Node B), base station (gNodeB or gNB) or transmission reception point (TRP) in NR, base station of 3GPP subsequent evolution, access node in WiFi system, wireless relay node, wireless backhaul Nodes, etc.
  • the base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, and the like.
  • a plurality of base stations can support the networks of the same technology mentioned above, and can also support the networks of the different technologies mentioned above.
  • the base station may include one or more co-site or non-co-located transmission receiving points (TRPs).
  • the network device may also be a wireless controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (CRAN) scenario.
  • the network device can also be a server, a wearable device, or an in-vehicle device.
  • the following uses a network device as a base station as an example for description.
  • the multiple network devices may be the same type of base station or different types of base stations.
  • the base station can communicate with the terminal or with the terminal through the relay station.
  • the terminal can communicate with multiple base stations of different technologies. For example, the terminal can communicate with a base station supporting the LTE network, or can communicate with a base station supporting the 5G network, and can also support dual connection with the base station of the LTE network and the base
  • the terminal is a wireless transceiver function that can be deployed on land, indoors or outdoors, handheld, wearable or on-board; it can also be deployed on the water (such as ships); it can also be deployed in the air (such as airplanes, balloons). And satellites, etc.).
  • the terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, industrial control (industrial) Wireless terminal, vehicle terminal device, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety
  • a terminal may also be called a terminal device, a user equipment (UE), an access terminal device, an in-vehicle terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, and a mobile device.
  • UE user equipment
  • the terminal can also be fixed or mobile.
  • the distance of direct communication between vehicle terminals is within 300 meters.
  • the communication distance requirement between the vehicle terminals is expanded to less than 1000 meters, and the end-to-end delay is required to be less than 1 millisecond (ms).
  • the direct communication between the vehicle terminals without the network equipment can meet the above end-to-end delay requirements.
  • the distance between the vehicle terminals through the single-hop link can not meet the above new requirements.
  • the routing method and device provided by the embodiments of the present invention implement a high-reliability multi-hop transmission in a cellular wireless communication network by introducing a multicast routing method that does not need to maintain routing information in a cellular wireless communication network, and solves a single-hop transmission between terminals.
  • FIG. 2 is a flowchart of a routing method according to an embodiment of the present application. As shown in FIG. 2, the method in this embodiment may include:
  • the source node sends a first data packet, where the first data packet includes service data, information of a forwarding node set of the first data packet, and information of a destination node; and a forwarding node set of the first data packet
  • the at least two forwarding nodes are included, and the information of the destination node identifies a destination node set and/or a destination node.
  • the embodiment of the present application may include part 250 of FIG. 2, that is, the source node receives indication information sent by the network device, and determines information of the forwarding node set of the first data packet according to the indication information.
  • At least two forwarding nodes receive the first data packet from the source node; the first data packet includes the service data, information and a set of forwarding node sets of the first data packet Determining information of the destination node; the set of forwarding nodes of the first data packet includes the at least two forwarding nodes, and the information of the destination node identifies a destination node set and/or a destination node.
  • At least one of the at least two forwarding nodes sends a second data packet; the second data packet includes the service data, information of a forwarding node set of the second data packet, and the The information of the destination node.
  • At least one of the destination node and/or the destination node receives the second data packet.
  • the nodes ie, the source node, the forwarding node, and the destination node
  • the nodes may be terminals or network devices. The above will be described by taking the node as a terminal as an example and combining the specific implementation manners.
  • the source node has traffic data to be sent to at least one destination node, and the at least one destination node is included in the destination node set.
  • the service data can be understood as the service data that the source node wants to deliver to the destination node.
  • the service data may be sensor information or control information sent by the vehicle-mounted terminal to other vehicle-mounted terminals.
  • the service data may be sensing information or control information sent by the industrial control terminal to other industrial control terminals.
  • the service data may have other names without causing ambiguity, for example, any of the following: data information, data bits, data information bits, original information, original data, and data payload (payload), not here. Make specific limits.
  • the embodiment of the present application uses the method of multi-hop transmission to forward the service data of the source node to the destination node through the forwarding node, so that the destination node that exceeds the communication range of the source node can receive the service data.
  • the source node sends the first data packet, where the first data packet includes service data, information of the first data packet forwarding node set, and information of the destination node.
  • the information of the destination node identifies a destination node set and/or a destination node, and the destination node set includes at least one destination node; the destination node may be understood as a node that the service data of the first data packet ultimately needs to reach.
  • the information of the first data packet forwarding node set identifies a forwarding node set of the first data packet, the forwarding node set of the first data packet includes at least two forwarding nodes, and the forwarding node may be understood as the service data.
  • a relay node forwarded to the destination node.
  • the node distribution in the schematic diagram of FIG. 3A includes a destination node, and the information of the destination node identifies the destination node or a set of destination nodes that include the destination node.
  • the information of the destination node may be an address of the destination node (for example, a unicast address of the destination node), or may be an address of a destination node set including the destination node (for example, the destination node) The multicast or broadcast address of the collection).
  • the forwarding node set includes two forwarding nodes (ie, forwarding node A and forwarding node B), and the information of the first data packet forwarding node set identifies the forwarding node set of the first data packet.
  • the information of the first data packet forwarding node set may be an address of a forwarding node set of the first data packet (for example, a multicast or broadcast address of the first data packet forwarding node set).
  • the node distribution in the example of FIG. 3B includes two destination nodes (destination node A and destination node B), and the information of the destination node identifies the destination node set.
  • the information of the destination node may be an address of the destination node set (for example, a multicast or broadcast address of the destination node set).
  • the set of forwarding nodes includes two forwarding nodes (ie, forwarding node A and forwarding node B), wherein the forwarding node A and the destination node A are the same node in the example of FIG. 3B, and the first packet forwarding node set is The information identifies the first set of packet forwarding nodes.
  • the information of the first data packet forwarding node set may be an address of the first data packet forwarding node set (for example, a multicast or broadcast address of the first data packet forwarding node set).
  • the unicast address involved in the embodiment of the present application may be an Internet Protocol (IP) unicast address, a physical (Physical, PHY) unicast address, a medium access control (MAC) unicast address, and a wireless address.
  • IP Internet Protocol
  • PHY physical
  • MAC medium access control
  • SDAP service data adaptation protocol
  • the unicast address involved in the application embodiment may also be a new protocol layer (for example, an adaptation layer) unicast address.
  • the unicast address involved in the embodiment of the present application may also be a node identifier, a node index, or a node ID, and the like, for example, an International Mobile Subscriber Identity (IMSI) of the terminal, and a temporary identifier of the terminal (such as temporary mobility).
  • IMSI International Mobile Subscriber Identity
  • a customer identification code Temporary Mobile Subscriber Identity, TMSI
  • C-RNTI Cell Radio Network Temporary Identifier
  • Proximity service Proximity service
  • the unicast address involved in the embodiment of the present application may also be location information of the node, such as the identifier of the cell where the terminal is located, the identifier of the tracking area where the terminal is located, the identifier of the routing area where the terminal is located, and the access network notification area where the terminal is located.
  • location information of the node such as the identifier of the cell where the terminal is located, the identifier of the tracking area where the terminal is located, the identifier of the routing area where the terminal is located, and the access network notification area where the terminal is located.
  • the identifier, or the geographical location coordinate information of the terminal may also be location information of the node, such as the identifier of the cell where the terminal is located, the identifier of the tracking area where the terminal is located, the identifier of the routing area where the terminal is located, and the access network notification area where the terminal is located.
  • the multicast/broadcast address involved in the embodiment of the present application may be an IP multicast address, an IP broadcast address, a PHY multicast address, a PHY broadcast address, a MAC multicast address, a MAC broadcast address, an RLC multicast address, an RLC broadcast address,
  • the multicast/broadcast address involved in the embodiment of the present application may also be a new protocol layer (such as an adaptation layer) multicast or new.
  • the multicast/broadcast address involved in the embodiment of the present application may also be a multicast/new address. Increase the protocol layer broadcast address.
  • the multicast/broadcast address involved in the embodiment of the present application may also be a node group identifier, a node group identifier, a node group index, a node group index, a node group ID, or a node group ID, and the like, for example, an IMSI and a terminal group of the terminal group.
  • the IMSI the temporary identity of the terminal group (such as Temporary Mobile Group Identity (TMGI), Group Radio Network Temporary Identifier (G-RNTI), etc.), the temporary identity of the terminal group (such as temporary The Temporary Mobile Group Identity (TMGI), the Group Radio Network Temporary Identifier (G-RNTI), the Prose UE Group ID of the terminal group, or the Prose UE Group ID of the terminal group.
  • the multicast/broadcast address involved in the embodiment of the present application may also be the location information of the node group or the location information of the node group, for example, the identifier of the cell group in which the terminal group/terminal group is located, the identifier of the cell group, and the tracking of the terminal group.
  • the identifier of the block/tracking area group, the identifier of the tracking area group/tracking area group where the terminal group is located, the identification of the routing area group/routing area group where the terminal group is located, and the identification of the routing area group/routing area group where the terminal group is located The identifier of the access network notification area group/access network notification area group where the terminal group is located, the identifier of the access network notification area group/access network notification area group where the terminal group is located, and the identifier of the broadcast service area where the terminal group is located.
  • Figure 4A shows an illustration of a first packet format.
  • the first data packet format includes three fields, respectively carrying information of the forwarding node set of the first data packet, information of the destination node, and the service data.
  • an arrangement order may be: information of the forwarding node set of the first data packet, and a destination node.
  • the first data packet may further include time information, a sequence number of the first data packet, a maximum number of times of forwarding the service data, source node information of the first data packet, and sending the first data. Any one or any of the service node information of the packet or the quality of service (QoS) requirements of the first data packet.
  • QoS quality of service
  • the time information includes valid time information of the service data and/or transmission time information of the second data packet.
  • the valid time information of the service data is used to identify the valid time of the service data, and the node may determine, according to the valid time information of the service data, whether the service data is valid at the current time.
  • the sending time information of the second data packet is used to identify the sending time of the second data packet, and the second data packet is a data packet sent by the forwarding node to the destination node, and the second data packet is in the 220 part and the 230 part.
  • the second data packet is described in more detail; the node may determine the transmission time of the second data packet according to the transmission time information of the second data packet.
  • the time information may be absolute time information, for example, a time of Universal Time Coordinated (UTC) or a time of using a Global Position System (GPS) clock, or a relative time information. For example, it is a GPS clock count offset or a relative SFN offset referenced by a system frame number (SFN) of a network broadcast.
  • the time information may also include other time information, such as generation time information of the first data packet, and the like.
  • the sequence number of the first data packet is used to identify or index the first data packet, so that the receiving node performs repeated detection according to the sequence number, and avoids repeatedly forwarding the service data included in the first data packet that has been sent. It is used to avoid repeatedly receiving the service data contained in the first data packet that has been received.
  • the sequence number of the first data packet is generated by the source node and included in the first data packet, and the forwarding node does not change the service data when forwarding the service data included in the first data packet.
  • the sequence number of a data packet is understood to be that when the forwarding node forwards the second data packet including the service data, the sequence number of the second data packet is the same as the sequence number of the first data packet.
  • the maximum number of forwardings of the service data is used by the forwarding node to determine the number of times the service data is allowed to be forwarded. For example, the forwarding number of the service data is 2, and the forwarding node determines that the service data is allowed to be forwarded twice according to the maximum number of times of forwarding the service data. The forwarding number of the service data is 0. The maximum number of forwardings of the service data determines that the service data can no longer be forwarded. Optionally, the forwarding node may also perform other predefined interpretations on the maximum number of forwardings of the service data, and then determine the number of times the service data is allowed to be forwarded.
  • the predefined interpretation mode is “the maximum number of forwarding times of the service data is reduced by 1”, and the maximum number of forwarding times of the service data is 2, and the forwarding node is based on the maximum number of forwarding of the service data, and combined with the above example.
  • the predefined interpretation mode determines that the service data is allowed to be forwarded once.
  • the source node information of the first data packet identifies the source node, for example, the source node information of the first data packet may be a unicast address of the source node.
  • the local node information that sends the first data packet identifies a node that sends the first data packet.
  • the local node information that sends the first data packet identifies the source node, for example, the local node information of the first data packet may be a unicast address of the source node.
  • the data packet carries the information of the node, and can be used for the forwarding node and the destination node to perform reverse route learning, so that the forwarding node can directly obtain the information of the previous hop node (for example, the address information of the previous hop node).
  • the forwarding node may know that when it needs to send the data packet whose destination node is the “source node”, the forwarding node may "Identified node forwarding.
  • the QoS requirement of the first data packet identifies a QoS requirement of the service data of the first data packet, and the QoS requirement includes any one of the following:
  • the forwarding node may forward the service data of the first data packet according to the QoS requirement of the first data packet to provide corresponding QoS guarantee.
  • the QoS requirement of the first data packet may identify a Prose per packet priority (PPPP), a Prose per packet reliability (PPPR), and a QoS class identifier (QoS class). Identifier, QCI), 5G QoS identifier (5QI), or Differentiated Services Code Point (DSCP).
  • FIG. 4B An illustration of another first packet format is shown in Figure 4B.
  • the first data packet format shown in FIG. 4B further includes the foregoing time information, the sequence number of the first data packet, the maximum number of forwarding of the service data, the source node information of the first data packet, Sending at least one of the local node information of the first data packet or the QoS requirement of the first data packet.
  • the embodiment of the present application does not limit the order of the fields in the first data packet format, and the length of each field in the first data packet format illustrated in FIG. 4B only serves as a schematic function.
  • the source node may further perform part 250 before receiving the 200 part, that is, receiving indication information sent by the network device, and determining information of the forwarding node set of the first data packet according to the indication information.
  • the network device may send, by using the indication information, a multicast or broadcast address of the first packet forwarding node set to the source node, where the source node receives the indication After the information, the information of the forwarding node set of the first data packet is determined to be a multicast or broadcast address of the first data packet forwarding node set.
  • the indication information may be Downlink Control Information (DCI), Radio Resource Control (RRC) signaling, system message or Medium Access Control Control Element (MAC CE). Etc., or any combination of the above various signaling.
  • DCI Downlink Control Information
  • RRC Radio Resource Control
  • MAC CE Medium Access Control Element
  • the at least one forwarding node of the at least two forwarding nodes included in the forwarding node set of the first data packet is configured according to information and a set of forwarding node sets of the first data packet.
  • Receiving, by the information of the destination node, the first data packet, where the information of the forwarding node set of the first data packet identifies the forwarding node set, and the information of the destination node does not identify the at least the forwarding node set includes At least one of the two forwarding nodes is a forwarding node, that is, it can be understood that at least one of the at least two forwarding nodes is a non-destination node.
  • At least one of the at least two forwarding nodes determines that the information of the forwarding node set of the first data packet identifies the forwarding node set, and determines that the information of the destination node does not identify the at least two forwarding nodes At least one of the at least one forwarding node, the at least one of the at least two forwarding nodes receiving the first data packet at a forwarding protocol layer and a protocol layer below the forwarding protocol layer, where the forwarding protocol layer may be Physical (Physical, PHY) protocol layer, Medium Access Control (MAC) protocol layer, Radio Link Control (RLC) protocol layer, Packet Data Convergence Protocol (PDCP) protocol Layer, Service Data Adaptation Protocol (SDAP) protocol layer, or other new protocol layers.
  • the forwarding protocol layer may be Physical (Physical, PHY) protocol layer, Medium Access Control (MAC) protocol layer, Radio Link Control (RLC) protocol layer, Packet Data Convergence Protocol (PDCP) protocol Layer, Service Data Adaptation Protocol (SDAP) protocol layer,
  • the information of the forwarding node set of the first data packet included in the first data packet sent by the source node identifies the forwarding node set in FIG. 3A, and the forwarding node set includes the forwarding node A and the forwarding node B. Then, both the forwarding node A and the forwarding node B can receive the first data packet.
  • the information of the destination node included in the first data packet identifies the destination node in FIG. 3A, and the forwarding node set in FIG. 3A is not identified (it may also be understood that the forwarding node A and the forwarding node B in FIG. 3A are not identified).
  • FIG. 5A shows a data flow direction in which the MAC protocol layer is used as the forwarding protocol layer and the forwarding node A is taken as an example.
  • the forwarding node A only performs the forwarding protocol layer (ie, the MAC protocol layer) and the forwarding.
  • the protocol layer below the protocol layer ie, the PHY protocol layer
  • the forwarding node A receives the first data packet at a protocol layer below the MAC protocol layer and the MAC protocol layer without further parsing the service data in the first data packet, thereby simplifying the processing flow and improving forwarding. Security protection of business data at the node.
  • At least one of the at least two forwarding nodes included in the forwarding node set of the first data packet is based on information of a forwarding node set of the first data packet.
  • the information of the destination node receives the first data packet, the information of the forwarding node set of the first data packet identifies the forwarding node set, and the information of the destination node further identifies the At least one of the at least two forwarding nodes, that is, at least one of the at least two forwarding nodes included in the forwarding node set is also a destination node.
  • At least one of the at least two forwarding nodes determines that the information of the forwarding node set of the first data packet identifies the forwarding node set, and determines that the information of the destination node further identifies the at least two forwarding nodes At least one of the at least one forwarding node, the at least one of the at least two forwarding nodes receiving the first data packet at a protocol layer below the forwarding protocol layer and the forwarding protocol layer, and at the forwarding protocol layer
  • the foregoing protocol layer receives the service data of the first data packet, where the forwarding protocol layer may be a PHY protocol layer, a MAC protocol layer, an RLC protocol layer, a PDCP protocol layer, a SDAP protocol layer, or other newly added protocol layers.
  • the service data in the package optionally, also knows the specific content of the service data (that is, the service data needs to be parsed).
  • the information of the forwarding node set of the first data packet included in the first data packet sent by the source node identifies the forwarding node set in FIG. 3B, and the forwarding node set includes the forwarding node A and the forwarding node B. Then, both the forwarding node A and the forwarding node B can receive the first data packet.
  • the information of the destination node included in the first data packet identifies the destination node set in FIG. 3B, and the destination node set includes a destination node A and a destination node B, where the destination node A and the forwarding node A are the same node.
  • the information of the destination node also identifies the forwarding node A included in the forwarding node set.
  • the forwarding node A receives the first data packet at a protocol layer below the forwarding protocol layer and the forwarding protocol layer, and receives service data of the first data packet at a protocol layer above the forwarding protocol layer.
  • FIG. 5B shows the data flow direction in which the MAC protocol layer is used as the forwarding protocol layer and the forwarding node A (also the destination node A) is taken as an example.
  • the forwarding node A is in the forwarding protocol layer (ie, the MAC protocol).
  • the forwarding node A (also the destination node A) receives the first data packet at the protocol layer below the MAC protocol layer and the MAC protocol layer, and the protocol layer above the MAC protocol layer (for example, the RLC protocol layer and/or the PDCP)
  • the protocol layer acquires the service data, so that the forwarding and parsing of the service data can be successfully completed when one node is both a forwarding node and a destination node.
  • the foregoing protocol layer below the forwarding protocol layer and the forwarding protocol layer receives the first data packet
  • the protocol layer above the forwarding protocol layer receives the service data of the first data packet and
  • the protocol layer is related to the processing of the first data packet. For example, in FIG. 5B, taking the MAC protocol layer as a forwarding protocol layer, the source node RLC protocol layer transmits the service data to the source node MAC protocol layer, and the source node MAC protocol layer is based on the service data. Adding information of the forwarding node set of the first data packet and information of the destination node to the PHY protocol layer, and transmitting the first data packet by using a wireless physical resource, where the wireless physical resource includes time, frequency, and space Or at least one of power resources.
  • Forwarding node A (also as destination node A) PHY protocol layer receives the first data packet by using the foregoing wireless physical resource, and transmits the first data packet to a MAC protocol layer of forwarding node A; MAC of forwarding node A The protocol layer removes or hides the information of the forwarding node set of the first data packet and the information of the destination node included in the first data packet, and then transmits the service data to the RLC protocol layer of the forwarding node A for further processing.
  • At least one of the forwarding node A and the forwarding node B in the foregoing example of FIG. 3A or FIG. 3B receives or processes the first data packet according to the process described in FIG. 3A or FIG. 3B.
  • the forwarding Both node A and forwarding node B receive or process the first data packet as described in connection with FIG. 3A or FIG. 3B.
  • At least one of the at least two forwarding nodes may conditionally send the second data packet.
  • the first data packet further includes valid time information of the service data
  • at least one of the at least two forwarding nodes is configured according to The valid time information of the service data determines that the service data in the first data packet is valid, and sends the second data packet.
  • the at least one forwarding node of the at least two forwarding nodes determines that the service data in the first data packet is invalid according to valid time information of the service data, and may not send the second data packet or Discard the business data.
  • the first data packet further includes a sequence number of the first data packet, and at least one of the at least two forwarding nodes, as described in the foregoing embodiment of the 200 part. Determining, according to the sequence number of the first data packet, that the service data in the first data packet is not forwarded, and sending the second data packet.
  • at least one of the at least two forwarding nodes determines that the service data in the first data packet is forwarded according to the sequence number of the first data packet, and the second data packet may not be sent. Or discard the business data.
  • the sequence number of the first data packet may uniquely identify the service data in the first data packet.
  • the forwarding node can be prevented from repeatedly forwarding the same service data, thereby improving forwarding efficiency and avoiding waste of air interface resources caused by repeated forwarding.
  • the first data packet further includes a sequence number of the first data packet and source node information of the first data packet, where the at least two At least one of the forwarding nodes determines that the service data in the first data packet is not forwarded according to the sequence number of the first data packet and the source node information of the first data packet, and sends the second data data pack.
  • at least one of the at least two forwarding nodes determines to forward the service data in the first data packet according to the sequence number of the first data packet and the source node information of the first data packet.
  • the second data packet may not be sent or the service data may be discarded.
  • the sequence number of the first data packet and the source node information of the first data packet may uniquely identify the service data in the first data packet.
  • the forwarding node can be prevented from repeatedly forwarding the same service data, thereby improving forwarding efficiency and avoiding waste of air interface resources caused by repeated forwarding.
  • the first data packet further includes a sequence number of the first data packet and source node information of the first data packet, where the at least two At least one of the forwarding nodes determines that the first packet is not forwarded according to the sequence number of the first data packet, the source node information of the first data packet, and the information of the destination node included in the first data packet.
  • the business data in the data packet and the second data packet is sent.
  • at least one of the at least two forwarding nodes is configured according to a sequence number of the first data packet, source node information of the first data packet, and information about a destination node included in the first data packet.
  • the second data packet may not be sent or the service data may be discarded.
  • the sequence number of the first data packet, the source node information of the first data packet, and the information of the destination node may uniquely identify the service data in the first data packet.
  • the first data packet further includes a maximum number of forwarding times of service data, and at least one of the at least two forwarding nodes, as described in the foregoing embodiment of the 200 part. Determining that the maximum number of forwarding of the service data is greater than zero, and sending the second data packet.
  • the second data packet may not be sent or the service data may be discarded.
  • the forwarding node may also perform other predefined interpretations on the maximum number of forwardings of the service data, and then determine that the service data of the first data packet is allowed to be forwarded.
  • the number of times that is, the description that the maximum number of forwarding times is greater than zero or equal to zero in the present embodiment may also be replaced by greater than N or equal to N, where N is an integer, and the specific value of N may be determined by the above predefined interpretation method.
  • N an integer
  • the specific value of N may be determined by the above predefined interpretation method.
  • the first data packet further includes a maximum number of forwarding times of service data, and at least one of the at least two forwarding nodes, as described in the foregoing embodiment of the 200 part. Determining that the maximum number of forwarding of the service data is greater than zero, and sending the second data packet.
  • the second data packet includes a maximum number of times of forwarding the service data, and the maximum number of times of forwarding the service data included in the second data packet satisfies an equation “the service data included in the second data packet.
  • Maximum number of forwardings maximum number of forwardings of the service data contained in the first data packet - 1".
  • the first data packet further includes transmission time information of the second data packet, and at least one of the at least two forwarding nodes, as described in the foregoing embodiment of the 200 part.
  • the forwarding node determines a sending time of the second data packet according to the sending time information of the second data packet.
  • the embodiment may be used to indicate that the node sends the second data packet at a predetermined time, for example, the service data that is not sensitive to the delay or has a low delay requirement, and may use the sending time information of the second data packet to indicate the node.
  • the second data packet is sent when the air interface resource is idle, thereby improving the utilization of the air interface resource; or, by using the implementation method, the time for coordinating forwarding of multiple nodes can be coordinated, so that the destination node can be made more accurate. Receive forwarded business data to increase collaboration gains.
  • the first data packet further includes valid time information of the service data and a sequence number of the first data packet, and at least one of the at least two forwarding nodes is configured according to The valid time information of the service data determines that the service data in the first data packet is valid, and determines that the service data in the first data packet is not forwarded according to the sequence number of the first data packet, and sends the The second data packet.
  • the valid time information of the service data determines that the service data in the first data packet is valid, and determines that the service data in the first data packet is not forwarded according to the sequence number of the first data packet, and sends the The second data packet.
  • the information of the forwarding node set of the second data packet may further identify a non-destination node set and/or a non-destination node, and the non-destination node set includes at least one non-destination node.
  • the information of the forwarding node set of the second data packet identifies the destination node set and the non-destination node set.
  • the second data packet sent by the forwarding node A includes the information of the forwarding node set of the second data packet, and the destination node and the non-destination node in FIG.
  • the forwarding node A sends The second data packet can also be received by the non-destination node.
  • the non-destination node may further include the service data of the second data packet in a third data packet and send the data to the destination node.
  • the number of the service data received by the destination node and/or the signal strength can be further increased, thereby improving the reliability of the data transmission.
  • the forwarding node B shown in FIG. 6 may also send the second data packet, that is, the second data packet sent by the forwarding node B shown in FIG. 6; the second data packet sent by the forwarding node B includes the second data packet.
  • the information of the forwarding node set of the data packet and the information of the forwarding node set of the second data packet included in the second data packet sent by the forwarding node A may identify the same node set, or may identify different node sets, and FIG. 6 identifies different nodes.
  • the set of nodes is an example.
  • the information of the forwarding node set of the second data packet included in the second data packet sent by the forwarding node A in FIG. 6 identifies the non-destination node and the destination node, and the forwarding of the second data packet included in the second data packet sent by the forwarding node B
  • the information of the node set identifies the destination node.
  • the embodiment of the present application only describes the implementation manner of the two-hop mode of “source node-forwarding node set-destination node/destination node set” as an example.
  • the present application does not limit the specific hop count in multi-hop.
  • the present application is also applicable to the three-hop mode of "source node-forwarding node set-forwarding node set-destination node/destination node set" or having more forwarding nodes/ Forward the multi-hop mode of the node set.
  • the embodiment of the present application may also cover the three-hop transmission shown in FIG. 7, which includes two sets of forwarding nodes.
  • the information of the forwarding node set of the second data packet may identify a forwarding node set of the next hop (eg, the next hop).
  • the set of forwarding nodes can be understood as the above-mentioned non-destination node set), and does not identify the destination node or the destination node set.
  • part 240 of FIG. 2 may be included, that is, at least one of the at least two forwarding nodes stores service data of the second data packet.
  • At least one of the at least two forwarding nodes is configured to learn that the second data packet is configured by at least one destination node in the destination node set and / or storing the service data of the second data packet before the destination node receives correctly.
  • the application does not limit the method in which at least one of the at least two forwarding nodes learns that the second data packet is correctly received by at least one destination node and/or the destination node in the destination node set.
  • the at least one destination node and/or the destination node included in the destination node set may send correct reception feedback to at least one of the at least two forwarding nodes after correctly receiving the second data packet.
  • the at least one destination node and/or the destination node included in the destination node set may notify the network device after receiving the second data packet correctly, and the network device sends the network device to the at least two forwarding nodes.
  • At least one forwarding node sends correct reception feedback information to cause at least one of the at least two forwarding nodes to learn that the second data packet has been correctly received.
  • the forwarding node can temporarily store the service data before the destination node successfully receives the service data, so that the forwarding data needs to be acquired from the previous hop node when the service data needs to be retransmitted or re-transmitted, thereby improving the forwarding speed. .
  • the first data packet further includes valid time information of the service data, and the at least two forwarding manners, as described in the foregoing embodiment of the 200 part.
  • At least one forwarding node in the node determines that the service data of the first data packet is valid according to the valid time information of the service data, and stores the service data.
  • the forwarding node can be obtained from the previous hop node when the service data needs to be retransmitted or re-transmitted, and the forwarding speed is improved.
  • the first data packet further includes sending time information of the second data packet, where the at least two forwardings are performed, as described in the foregoing embodiment of the 200 part.
  • the at least one forwarding node in the node determines, according to the sending time information of the second data packet, the sending time of the second data packet, and stores the service data of the second data packet.
  • the forwarding node obtains the service data of the second data packet before the sending time of the second data packet, the service data may be stored, so that after the sending time of the second data packet arrives, Can be sent directly, improving the forwarding speed of business data.
  • the second data packet may further include time information (for example, valid time information of the service data), a sequence number of the second data packet, At least one of a maximum number of times of forwarding of the service data, source node information of the second data packet, local node information of the second data packet, or QoS requirement of the second data packet.
  • time information for example, valid time information of the service data
  • sequence number of the second data packet At least one of a maximum number of times of forwarding of the service data
  • source node information of the second data packet may be included in the second data packet.
  • QoS requirement of the second data packet may further include time information (for example, valid time information of the service data), a sequence number of the second data packet, At least one of a maximum number of times of forwarding of the service data, source node information of the second data packet, local node information of the second data packet, or QoS requirement of the second data packet.
  • time information for example, valid time information of the service data
  • sequence number of the second data packet At least one of
  • the service data included in the second data packet may be service data included in the first data packet, or may be modified or adjusted based on service data included in the first data packet. data.
  • the destination node determines that the information of the forwarding node set of the second data packet identifies the destination node, and determines that the information of the destination node identifies the destination node.
  • the forwarding protocol layer is a MAC protocol layer, an RLC protocol layer, a PDCP protocol layer, a SDAP protocol layer, or a new protocol layer.
  • the at least one destination node in the set of destination nodes determines that the information of the forwarding node set of the second data packet identifies the destination node set, and determines the destination node.
  • the information identifies the set of destination nodes.
  • At least one destination node in the set of destination nodes receives the second data packet at a protocol layer below the forwarding protocol layer and the forwarding protocol layer, and receives the second data at a protocol layer above the forwarding protocol layer
  • the service data of the packet, the forwarding protocol layer is a MAC protocol layer, an RLC protocol layer, a PDCP protocol layer, a SDAP protocol layer, or a new protocol layer.
  • the new protocol layer involved in the present application may be a protocol layer or multiple protocol layers.
  • the new protocol layer may be between the PHY protocol layer and the MAC protocol layer, or may be between the MAC protocol layer and the RLC protocol layer, or may be between the RLC protocol layer and the PDCP protocol layer, or may be in the PDCP protocol layer and Between the SDAP protocol layers, or on top of the SDAP protocol layer.
  • At least one of the destination node and/or the destination node may conditionally receive the second data packet.
  • the second data packet further includes valid time information of the service data, and at least one destination node in the destination node set, as described in the foregoing 220 part. And/or the destination node determines, according to the valid time information of the service data, that the service data of the second data packet is valid, and receives the second data packet.
  • at least one destination node in the set of destination nodes and/or the destination node determines that the service data of the second data packet is invalid according to valid time information of the service data, and may not receive or receive The second data packet is then discarded.
  • the second data packet further includes a sequence number of the second data packet, and at least one destination node in the destination node set, as described in the foregoing 220 part. And/or the destination node determines, according to the sequence number of the second data packet, service data that has not received the second data packet, and receives the second data packet.
  • at least one destination node in the set of destination nodes and/or the destination node determines that the service data of the second data packet is received according to the sequence number of the second data packet, and may not receive or receive The second data packet is then discarded.
  • the sequence number of the second data packet may uniquely identify the service data of the second data packet.
  • the destination node can be prevented from repeatedly receiving the same service data, thereby improving the receiving efficiency and avoiding waste of air interface resources caused by repeated receiving.
  • the second data packet further includes a sequence number of the second data packet and source node information of the second data packet, as described in the foregoing embodiment of the 220 part. Determining, by the at least one destination node and/or the destination node, the service that has not received the second data packet according to the sequence number of the second data packet and source node information of the second data packet Data and receiving the second data packet.
  • the at least one destination node in the set of destination nodes and/or the destination node determines that the second data is received according to the sequence number of the second data packet and the node information of the second data packet source.
  • the service data of the packet may be discarded after the second data packet is not received or received.
  • the sequence number of the second data packet and the source node information of the second data packet may uniquely identify service data of the second data packet.
  • the destination node can be prevented from repeatedly receiving the same service data, so that the forwarding efficiency can be improved, and the waste of the air interface caused by repeated reception can be avoided.
  • the second data packet further includes a sequence number of the second data packet and source node information of the second data packet, as described in the foregoing embodiment of the 220 part.
  • At least one destination node and/or the destination node in the set of destination nodes according to a sequence number of the second data packet, source node information of the second data packet, and a destination node included in the second data packet The information determines that the service data of the second data packet has not been received, and receives the second data packet.
  • at least one destination node in the set of destination nodes and/or the destination node includes, according to a sequence number of the second data packet, source node information of the second data packet, and the second data packet.
  • the information of the destination node determines that the service data of the second data packet has been received, and may discard the second data packet after receiving or receiving.
  • the sequence number of the second data packet, the source node information of the second data packet, and the information of the destination node may uniquely identify service data of the second data packet.
  • the indication (such as carrying the repeated receiving indication information in the data packet, or the manner of the network device notification or configuration) configures at least one destination node in the set of destination nodes and/or the function of the destination node to repeatedly detect or receive.
  • the second data packet further includes valid time information of the service data and a sequence number of the second data packet; at least one destination node in the destination node set and And determining, by the destination node, the service data of the second data packet is valid according to the valid time information of the service data, and determining, according to the sequence number of the second data packet, the service data of the second data packet not received. And receiving the second data packet.
  • Other combinations of the possible embodiments of the foregoing 230 parts are still within the scope of protection of the present application, and are not described herein again.
  • the routing method and device provided by the embodiments of the present invention implement a high-reliability multi-hop transmission in a cellular wireless communication network by introducing a multicast routing method that does not need to maintain routing information in a cellular wireless communication network, and solves a single-hop transmission between terminals.
  • the method implemented by the communication device in the foregoing various method embodiments can also be implemented by components (for example, integrated circuits, chips, etc.) that can be used for the communication device.
  • the embodiment of the present application further provides a corresponding communication device (sometimes referred to as a communication device), where the communication device includes a corresponding one for performing each part in the foregoing embodiment.
  • a corresponding communication device sometimes referred to as a communication device
  • the communication device includes a corresponding one for performing each part in the foregoing embodiment.
  • Module can be software, hardware, or a combination of software and hardware.
  • FIG. 8 is a block diagram showing the structure of a communication device.
  • the communication device 800 may be the network device 14 in FIG. 1, or may be the terminal 11, 12, or 13 in FIG.
  • the communication device can be used to implement the method corresponding to the communication device described in the foregoing method embodiments. For details, refer to the description in the foregoing method embodiment.
  • the communication device 800 can include one or more processors 801, which can also be referred to as processing units, to implement certain control functions.
  • the processor 801 can be a general purpose processor or a dedicated processor or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used for communication devices (eg, base stations, baseband chips, distributed units (DUs), or centralized units (CUs), etc. Control, execute software programs, and process data from software programs.
  • the processor 801 may also store instructions 803 that may be executed by the processor such that the communication device 800 performs the method corresponding to the communication device described in the above method embodiments. .
  • communication device 800 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments.
  • the communication device 800 can include one or more memories 802 on which instructions 804 can be stored, the instructions can be executed on the processor, such that the communication device 800 performs the above method implementation.
  • the method described in the example may also be stored in the memory.
  • instructions and/or data may also be stored in the processor.
  • the processor and the memory may be provided separately or integrated.
  • the communication device 800 may further include a transceiver 805 and/or an antenna 806.
  • the processor 801 may be referred to as a processing unit to control a communication device (terminal or network device).
  • the transceiver 805 can be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., for implementing a transceiving function of the communication device.
  • a communication device 800 (eg, an integrated circuit, a wireless device, a circuit module, a network device, a terminal, etc.) can include a processor 801 and a transceiver 805.
  • the set of forwarding nodes includes the at least two forwarding nodes, and the information of the destination node identifies a destination node set and/or a destination node.
  • the first data packet is processed by the processor 801.
  • the second data packet is sent by the transceiver 805, where the second data packet includes the service data, the information of the forwarding node set of the second data packet, and the information of the destination node.
  • the processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board ( Printed circuit board, PCB), electronic equipment, etc.
  • IC integrated circuit
  • analog IC an analog IC
  • radio frequency integrated circuit RFIC a radio frequency integrated circuit
  • mixed signal IC an application specific integrated circuit
  • ASIC application specific integrated circuit
  • PCB printed circuit board
  • electronic equipment etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (n-metal oxide semiconductor) (n-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type A positive oxide metal oxide semiconductor (PMOS), a Bipolar Junction Transistor (BJT), a bipolar CMOS (BiCMOS), a silicon germanium (SiGe), or a gallium arsenide (GaAs).
  • CMOS complementary metal oxide semiconductor
  • n-metal oxide semiconductor n-type metal oxide semiconductor
  • PMOS P-type A positive oxide metal oxide semiconductor
  • BJT Bipolar Junction Transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device is described by taking a network device or a terminal as an example, the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited by FIG.
  • the communication device can be a standalone device or can be part of a larger device.
  • the device can be:
  • the set of ICs may also include storage means for storing data and/or instructions;
  • an ASIC such as a modem (MSM);
  • FIG. 9 provides a schematic structural diagram of a terminal.
  • the terminal can be adapted for use in the system shown in FIG.
  • FIG. 9 shows only the main components of the terminal.
  • the terminal 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling the entire terminal, executing software programs, and processing data of the software programs.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit, and the radio frequency circuit processes the baseband signal to obtain the radio frequency signal, and sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and performs the data. deal with.
  • FIG. 9 shows only one memory and processor for ease of illustration. In an actual terminal, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal and execute the software.
  • the processor in FIG. 9 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal may include multiple baseband processors to accommodate different network standards.
  • the terminal may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • an antenna and control circuit having a transceiving function can be regarded as a transceiving unit 911 of the terminal 900, and a processor having a processing function can be regarded as a processing unit 912 of the terminal 900.
  • the terminal 900 includes a transceiver unit 911 and a processing unit 912.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 911 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 911 is regarded as a sending unit, that is, the transceiver unit 911 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the receiving unit and the sending unit may be a unit that is integrated together, or may be a plurality of units that are independent of each other.
  • the receiving unit and the transmitting unit may be in one geographical location or may be dispersed in multiple geographical locations.
  • the communication device may be a terminal, or may be a component of the terminal (for example, an integrated circuit, a chip, etc.); the communication device may also be a network device, or may be a component of the network device (eg, an integrated circuit, a chip, etc.) Or the communication device may be another communication module for implementing the operation corresponding to the communication device in the method embodiment of the present application.
  • the communication device 1000 can include a processing module 1002.
  • the transceiver module 1001 and the storage module 1003 are further included.
  • one or more of the modules in FIG. 10 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors.
  • the implementation is not limited by the embodiment of the present application.
  • the implementation is implemented by one or more processors, a memory, and a transceiver.
  • the processor, the memory, and the transceiver may be separately configured or integrated.
  • the communication device is provided with the function of implementing the forwarding node described in the embodiment of the present application.
  • the communication device includes the module or unit or means corresponding to the step of the forwarding node performing the forwarding node described in the embodiment of the present application.
  • the functions or units or means can be implemented by software, or by hardware, or by corresponding software implementation by hardware. Reference may be made in detail to the corresponding description in the foregoing corresponding method embodiments.
  • the communication device is provided with the function of the source node described in the embodiment of the present application.
  • the communication device includes the module or unit or means corresponding to the source node performing the steps related to the source node described in the embodiment of the present application.
  • the functions or units or means can be implemented by software, or by hardware, or by software. Reference may be made in detail to the corresponding description in the foregoing corresponding method embodiments.
  • the communication device is provided with a function of the network device described in the embodiment of the present application.
  • the communication device includes a module or a unit or a means for the network device to perform the steps related to the network device described in the embodiment of the present application.
  • the functions or units or means can be implemented by software, or by hardware, or by software. Reference may be made in detail to the corresponding description in the foregoing corresponding method embodiments.
  • each module in the communication device 1000 in the embodiment of the present application may be used to perform the method described in the embodiments of the present application.
  • the transceiver module 1001 receives a first data packet from a source node, where the first data packet includes service data, information of a forwarding node set of the first data packet, and a destination node. Information; the set of forwarding nodes of the first data packet includes at least two forwarding nodes, the information of the destination node identifies a destination node set and/or a destination node; the transceiver module 1001 sends a second data packet; the second The data packet includes the service data, information of a forwarding node set of the second data packet, and information of the destination node.
  • the processing module 1002 processes the first layer at a protocol layer below the forwarding protocol layer and the forwarding protocol layer
  • the data packet, the forwarding protocol layer is any one of the following: a medium access control MAC protocol layer, a radio link control RLC protocol layer, a packet data convergence protocol PDCP protocol layer, and a service data adaptation protocol SDAP protocol layer.
  • the information of the destination node identifies at least one of the at least two forwarding nodes; the processing module 1002 processes the first data by using a protocol layer below the forwarding protocol layer and the forwarding protocol layer a packet, the processing module 1002 processes the service data at a protocol layer above the forwarding protocol layer, where the forwarding protocol layer is any one of the following: a medium access control MAC protocol layer, a radio link control RLC protocol layer, Packet Data Convergence Protocol PDCP Protocol Layer and Service Data Adaptation Protocol SDAP Protocol Layer.
  • the forwarding protocol layer is any one of the following: a medium access control MAC protocol layer, a radio link control RLC protocol layer, Packet Data Convergence Protocol PDCP Protocol Layer and Service Data Adaptation Protocol SDAP Protocol Layer.
  • the first data packet includes time information, a sequence number of the first data packet, a maximum number of times of forwarding the service data, or any one or any of source node information of the first data packet. item.
  • the time information includes valid time information of the service data and/or sending time information of the second data packet.
  • sequence number of the first data packet is used to identify or index the first data packet.
  • the maximum number of forwardings of the service data is used to indicate a maximum number of times the service data is allowed to be forwarded.
  • the source node information of the first data packet is used to identify the source node.
  • the processing module 1002 controls the transceiver module 1001 to send the second data packet according to any one or any of the following: the time information, the sequence number of the first data packet, and the service The maximum number of times the data is forwarded or the source node information of the first data packet.
  • the processing module 1002 determines that the service data is valid according to valid time information of the service data, and controls the transceiver module 1001 to send the second data packet.
  • the processing module 1002 determines, according to the sequence number of the first data packet, that the service data is not forwarded by the at least one of the at least two forwarding nodes, and controls the transceiver module 1001. Sending the second data packet.
  • the processing module 1002 determines that the maximum number of forwardings of the service data is greater than zero, and controls the transceiver module 1001 to send the second data packet.
  • the processing module 1002 determines that the service data is valid according to the valid time information of the service data, and determines that the service data is not the at least two forwarding nodes according to the sequence number of the first data packet.
  • the at least one forwarding node in the forwarding is forwarded, and the transceiver module 1001 is controlled to send the second data packet.
  • the processing module 1002 determines that the service data is valid according to the valid time information of the service data, and that the maximum number of forwarding of the service data is greater than zero, and controls the transceiver module 1001 to send the second data pack.
  • the processing module 1002 determines, according to the sequence number of the first data packet, that the service data is not forwarded by the at least one of the at least two forwarding nodes, and the service data is the largest.
  • the number of forwardings is greater than zero, and the transceiver module 1001 is controlled to send the second data packet.
  • the processing module 1002 determines that the service data is valid according to the valid time information of the service data, and determines that the service data is not the at least two forwarding nodes according to the sequence number of the first data packet.
  • the at least one forwarding node in the forwarding is forwarded, and the maximum number of forwarding of the service data is greater than zero, and the transceiver module 1001 is controlled to send the second data packet.
  • the second data packet includes a maximum number of forwarding times of the service data
  • the processing module 1002 determines, according to the following equation, a maximum number of forwardings of the second data packet that includes the service data:
  • the maximum number of forwardings of the service data included in the second data packet the maximum number of forwarding times of the service data included in the first data packet -1.
  • the processing module 1002 determines, according to the second data packet sending time information included in the first data packet, a sending time of the second data packet.
  • the second data packet includes a maximum number of times of forwarding the service data
  • the second packet transmission time information included in the determination determines the transmission time of the second data packet.
  • the processing module 1002 controls the storage module 1003 to store the service before learning that the second data packet is correctly received by at least one destination node and/or the destination node in the destination node set. data.
  • the processing module 1002 determines that the service data is valid according to valid time information of the service data included in the first data packet, and controls the storage module 1003 to store the service data.
  • the processing module 1002 determines, according to the sending time information of the second data packet included in the first data packet, a sending time that is not the second data packet, and controls the storage module 1003 to store The business data.
  • processing units for performing these techniques at a communication device may be implemented in one or more general purpose processors, digital signal processors (DSPs), digital Signal processing device (DSPD), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or In any combination.
  • DSPs digital signal processors
  • DSPD digital Signal processing device
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present application may be directly embedded in hardware, an instruction executed by a processor, or a combination of the two.
  • the memory can be RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art.
  • the memory can be coupled to the processor such that the processor can read information from the memory and can write information to the memory.
  • the memory can also be integrated into the processor.
  • the processor and the memory can be disposed in the ASIC, and the ASIC can be disposed in the terminal. Alternatively, the processor and memory may also be located in different components in the terminal.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or packet
  • the center transmits to another website site, computer, server, or packet center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a packet storage device that includes one or more available media integrated servers, packet centers, and the like.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)). Combinations of the above should also be included within the scope of the computer readable media.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)

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Abstract

本申请实施例提供一种无线通信的方法及其装置。该方法包括：至少两个转发节点接收来自于源节点的第一数据包；该第一数据包中包含业务数据、该第一数据包的转发节点集合的信息和目的节点的信息；该第一数据包的转发节点集合包含该至少两个转发节点，该目的节点的信息用于标识目的节点集合和/或目的节点；该至少两个转发节点中的至少一个转发节点发送第二数据包；该第二数据包中包含该业务数据，该第二数据包的转发节点集合的信息和该目的节点的信息。本申请实施例提供的方法，通过在蜂窝无线通信网络中引入组播路由方法，实现了无线通信网络中的多跳传输，解决了终端间通过单跳链路直接通信距离较短的问题以及数据传输可靠性不足的问题。

Description

路由方法及装置
本申请要求在2018年5月18日提交中国国家知识产权局、申请号为201810482407.0、发明名称为“路由方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种无线通信的方法及装置。
背景技术
目前，车辆可以通过车辆与车辆之间通信(Vehicle to Vehicle，V2V)或者车辆与路边基础设施通信(Vehicle to Infrastructure，V2I)或者车辆与行人之间的通信(Vehicle to Pedestrian，V2P)或者车辆与网络通信(Vehicle to Network，V2N)来及时获取路况信息或接收服务信息，这些通信方式可以统称为V2X通信(其中，X代表任何事物)。V2X通信所使用的网络称为车联网。
基于蜂窝网的车联网通信是目前重要的通信手段，例如基于长期演进(Long Term Evolution，LTE)或第五代(5th Generation，5G)新空口(New Radio，NR)的V2X通信。出于对交通安全因素的考虑，基于蜂窝网的V2X通信对传输可靠性和实时性有很高的需求。例如，V2X通信要求达到99.999％的传输可靠性和端到端低至1ms的超低时延。可见V2X通信对蜂窝网通信提出了极高的要求。
发明内容
本申请实施例提供一种无线通信的方法及装置。
第一方面，本申请实施例提供一种无线通信的方法，包括：
至少两个转发节点接收来自于源节点的第一数据包；所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点；
所述至少两个转发节点中的至少一个转发节点发送第二数据包；所述第二数据包中包含所述业务数据，所述第二数据包的转发节点集合的信息和所述目的节点的信息。
本申请实施例提供的方法，通过在蜂窝无线通信网络中引入无需维护路由信息的组播路由方法，实现了蜂窝无线通信网络中的多跳传输，解决了终端间通过单跳链路直接通信距离较短的问题。
可选地，所述至少两个转发节点中的至少两个转发节点发送第二数据包。通过该实施方式，能够使目的节点获得多份接收信号，从而增强目的节点的数据接收可靠性，达到多跳传输中高可靠接收的要求。
可选地，所述第一数据包的转发节点集合的信息标识所述第一数据包的转发节点集合。
可选地，所述第一数据包的转发节点集合的信息为所述第一数据包的转发节点集合的 组播或广播地址。
可选地，所述目的节点的信息未标识所述至少两个转发节点中的至少一个转发节点；所述至少两个转发节点中的所述至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。以该转发协议层为MAC协议层为例，所述至少两个转发节点中的所述至少一个转发节点在MAC协议层和MAC协议层以下的协议层接收所述第一数据包，而无需进一步解析该第一数据包中的业务数据，从而简化了处理流程，并且提高了在转发节点处对业务数据的安全性保护。
可选地，所述目的节点的信息标识所述至少两个转发节点中的至少一个转发节点；所述至少两个转发节点中的所述至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，所述至少两个转发节点中的所述至少一个转发节点在所述转发协议层以上的协议层获取所述业务数据，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。以该转发协议层为MAC协议层为例，所述至少两个转发节点中的所述至少一个转发节点在MAC协议层和MAC协议层以下的协议层接收所述第一数据包，并且在MAC协议层以上的协议层(例如RLC协议层和/或PDCP协议层)获取所述业务数据，从而能够在一个节点既是转发节点也是目的节点的情况下，顺利完成业务数据的转发和解析。
可选地，所述第一数据包包含时间信息，所述时间信息包含所述业务数据的有效时间信息和/或所述第二数据包的发送时间信息。所述业务数据的有效时间信息用于标识所述业务数据的有效时间，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息可以确定所述业务数据在当前时间是否有效。所述第二数据包的发送时间信息用于标识第二数据包的发送时间，所述至少两个转发节点中的至少一个转发节点根据所述第二数据包的发送时间信息可以确定所述第二数据包的发送时间。
在一种可能的实施方式中，所述时间信息包含所述业务数据的有效时间信息，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包中的业务数据为有效，并发送所述第二数据包。通过该实施方式，可以确保转发节点接收或转发的业务数据是有效的，从而可以避免目的节点接收到无效的业务数据，也可以避免转发无效业务数据造成的空口资源浪费。
在另一种可能的实施方式中，所述时间信息包含所述业务数据的有效时间信息，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包的业务数据为有效，并存储所述业务数据。通过该实施方式，可以使转发节点在需要重传或重转发该业务数据有效时无需再从前一跳节点获取，提高了转发速度。
在另一种可能的实施方式中，所述时间信息包含所述第二数据包的发送时间信息，所述至少两个转发节点中的至少一个转发节点根据所述第二数据包的发送时间信息确定所述第二数据包的发送时间。通过该实施方式，可以用于指示节点在预定时间发送所述第二数据包，例如对于时延不敏感或者时延要求不高的业务数据，可以利用该第二数据包的发送时间信息指示节点在空口资源空闲的时间发送该第二数据包，从而提高对空口资源的利用率；或者，通过该实施方法，可以用于协调多个节点协作转发的时间， 从而可以使目的节点根据更准确的接收转发的业务数据，以提升协作增益。
在另一种可能的实施方式中，所述时间信息包含所述第二数据包的发送时间信息，所述至少两个转发节点中的至少一个转发节点根据所述第二数据包的发送时间信息确定未到所述第二数据包的发送时间，并存储所述第二数据包的业务数据。通过该实施方式，使转发节点在所述第二数据包的发送时间前获得所述第二数据包的业务数据时，可以存储该业务数据，从而在所述第二数据包的发送时间到达后可以直接发送，提高了转发业务数据的速度。
可选地，所述第二数据包包含时间信息，所述时间信息包含所述业务数据的有效时间信息。所述业务数据的有效时间信息用于标识所述业务数据的有效时间，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述业务数据的有效时间信息可以确定所述业务数据在当前时间是否有效。
可选地，所述第一数据包包含所述第一数据包的序号，所述所述第一数据包的序号用于标识或索引所述第一数据包。
在一种可能的实施方式中，所述第一数据包包含所述第一数据包的序号。所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
可选地，所述第二数据包包含所述第二数据包的序号，所述所述第二数据包的序号用于标识或索引所述第二数据包。
可选地，所述第一数据包包含所述第一数据包的源节点信息，所述第一数据包的源节点信息标识所述源节点。
在一种可能的实施方式中，所述第一数据包包含上述第一数据包的序号和第一数据包的源节点信息，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号和所述第一数据包的源节点信息确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
在另一种可能的实施方式中，所述第一数据包包含上述第一数据包的序号和第一数据包的源节点信息，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号、所述第一数据包的源节点信息和所述第一数据包包含的目的节点的信息确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
可选地，所述第二数据包包含所述第二数据包的源节点信息，所述第二数据包的源节点信息标识所述源节点。
可选地，所述第一数据包包含所述业务数据的最大转发次数，所述业务数据的最大转发次数用于确定所述业务数据允许被转发的次数。
在一种可能的实施方式中，所述第一数据包包含业务数据的最大转发次数，所述至少两个转发节点中的至少一个转发节点确定所述业务数据的最大转发次数大于零，并发送所述第二数据包。通过该实施方式，可以控制业务数据的合理转发次数，避免转发次数过多从而导致业务数据被过度转发而造成空口资源的浪费。
在另一种可能的实施方式中，所述第一数据包包含业务数据的最大转发次数，所述至少两个转发节点中的至少一个转发节点确定所述业务数据的最大转发次数大于零，并发送所述第二数据包，并且所述第二数据包包含所述业务数据的最大转发次数，所述第二数据包中包含的所述业务数据的最大转发次数满足等式“所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数-1”。通过该实施方式，可以控制业务数据的合理转发次数，避免转发次数过多从而导致业务数据被过度转发而造成空口资源的浪费。
可选地，所述第二数据包包含所述业务数据的最大转发次数，所述业务数据的最大转发次数用于确定所述业务数据允许被转发的次数。
可选地，所述第一数据包包含发送第一数据包的本节点信息，所述发送第一数据包的本节点信息标识发送所述第一数据包的节点。示例性的，所述发送第一数据包的本节点信息标识所述源节点。通过该实施方式，能够更便捷地获得反向路由信息，即能够让节点直接获得其上一跳节点(即上述源节点)的信息(例如上一跳节点的地址信息)，这样当需要从该节点向其上一跳节点(即上述源节点)发送信息时，可以直接使用上述上一跳节点(即上述源节点)的信息，从而提升路由选择的效率。
可选地，所述第二数据包包含发送第二数据包的本节点信息，所述发送第二数据包的本节点信息标识所述至少两个转发节点中的一个转发节点，所述一个转发节点为发送所述第二数据包的转发节点。通过该实施方式，能够更便捷地获得反向路由信息，即能够让节点直接获得其上一跳节点(即发送上述第二数据包的节点)的信息(例如上一跳节点的地址信息)，这样当需要从该节点向其上一跳节点(即发送上述第二数据包的节点)发送信息时，可以直接使用上述上一跳节点(即发送上述第二数据包的节点)的信息，从而提升路由选择的效率。
可选地，所述第一数据包包含所述第一数据包的QoS需求，述第一数据包的QoS需求标识所述第一数据包的业务数据的优先级需求和/或可靠性需求。
可选地，所述第二数据包包含所述第二数据包的QoS需求，述第二数据包的QoS需求标识所述第二数据包的业务数据的优先级需求和/或可靠性需求。
可选地，所述第二数据包的转发节点集合的信息还标识非目的节点集合和/或非目的节点，所述非目的节点集合包含至少一个非目的节点。在一种可能的实施方式中，所述第二数据包的转发节点集合的信息标识所述目的节点集合和所述非目的节点集合。进一步可选地，所述非目的节点集合包含的至少一个非目的节点接收所述第二数据包，并将所述第二数据包的业务数据包含在第三数据包中发送给所述目的节点。通过该实施方式，可以进一步增加目的节点收到所述业务数据的数量和/或信号强度，进而提高了数据传输的可靠性。
可选地，所述至少两个转发节点中的至少一个转发节点在获知所述第二数据包被所述目的节点集合中的至少一个目的节点和/或所述目的节点正确接收前，存储所述业务数据。通过该实施方式，可以使转发节点在目的节点成功接收所述业务数据前暂存所述业务数据，从而在需要重传或重转发该业务数据时无需再从前一跳节点获取，提高了转发速度。
第二方面，本申请实施例提供一种无线通信的方法，包括：
源节点发送第一数据包，所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发 节点，所述目的节点的信息标识目的节点集合和/或目的节点。
可选地，所述源节点接收网络设备发送的指示信息，并根据所述指示信息确定所述第一数据包的转发节点集合的信息。
可选地，所述指示信息包含所述第一数据包的转发节点集合的组播或广播地址。
本申请实施例提供的方法，通过在蜂窝无线通信网络中引入无需维护路由信息的组播路由方法，使能了蜂窝无线通信网络中的多跳传输，从而有助于解决终端间通过单跳链路直接通信距离较短的问题。
第三方面，本申请实施例提供一种无线通信的方法，包括：
网络设备发送指示信息，所述指示信息用于源节点确定第一数据包的转发节点集合的信息。
可选地，所述指示信息包含所述第一数据包的转发节点集合的组播或广播地址。
本申请实施例提供的方法，通过在蜂窝无线通信网络中引入无需维护路由信息的组播路由方法，使能了蜂窝无线通信网络中的多跳传输，从而为解决终端间通过单跳链路直接通信范围不足的问题打下基础。
第四方面，本申请实施例提供一种通信设备，所述通信设备具备实现上述第一方面涉及的转发节点的功能，比如，所述通信设备包括所述转发节点执行上述第一方面中涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。或者所述通信设备具备实现上述第二方面涉及的源节点的功能，或者具备第三方面涉及的网络设备的功能。
第五方面，本申请实施例提供一种通信设备，包括：处理器和存储器，所述存储器用于存储程序，当所述程序被所述处理器执行时，使得通信设备以执行上述第一方面、第二方面或第三方面的方法及其任一项实施方式。
第六方面，本申请实施例提供一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述第一方面、第二方面或第三方面的方法及其任一项实施方式。
第七方面，本申请实施例提供一种芯片系统，包括：处理器，用于支持通信设备实现上述第一方面、第二方面或第三方面的方法及其任一项实施方式。
第八方面，本申请实施例提供一种通信系统，包括：如第四方面或第五方面所述的通信设备，或如第六方面所述的存储介质。
附图说明
图1是应用于本申请的通信系统的示意性框图；
图2为本申请实施例提供的一种无线通信的方法的流程示意图；
图3A为本申请实施例适用的一种场景示意图；
图3B为本申请实施例适用的另一种场景示意图；
图4A为本申请实施例提供的一种第一数据包示意图；
图4B为本申请实施例提供的另一种第一数据包示意图；
图5A为本申请实施例提供的一种协议层数据流向示意图；
图5B为本申请实施例提供的另一种协议层数据流向示意图；
图6为本申请实施例适用的又一种场景示意图；
图7为本申请实施例提供的另一种路由方法流程示意图；
图8为本申请实施例提供的一种通信装置的结构示意图；
图9为本申请实施例提供的一种终端的结构示意图；
图10为本申请实施例提供的一种通信设备示意图。
具体实施方式
本发明实施例提供的路由方法及装置可以应用于通信系统中。首先结合图1简单介绍适用于本申请实施例的通信系统。图1是适用于本申请实施例的系统10的示意图。图1所示的系统可以是V2X通信系统。如图1所示，该通信系统10包括至少三个终端，例如终端11，终端12和终端13。其中，终端11与终端12之间可以通过直连链路进行通信，终端11和终端13之间可以通过直连链路进行通信。也就是说，终端11与终端12之间可以直接进行通信，无需网络侧中转。终端11和终端13之间可以直接进行通信，无需网络侧中转。可选地，该系统10还可以包括网络设备14，网络设备140和各终端之间可以通过无线连接进行数据通信。
本发明实施例描述的技术可用于各种通信系统，例如2G，3G，4G，4.5G，5G通信系统，多种通信系统融合的系统，或者未来演进网络。例如码分多址(code division multiple access，CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、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 FDMA，SC-FDMA)，长期演进(long term evolution，LTE)系统，新空口(new radio,NR)系统，无线保真(wireless-fidelity，WiFi)系统、全球微波互联接入(worldwide interoperability for microwave access，WiMAX)系统，以及第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的蜂窝系统等，以及其他此类通信系统。
本申请中，网络设备可以是任意一种具有无线收发功能的设备。包括但不限于：全球移动通信系统(Global System for Mobile，GSM)或CDMA中的基站(base transceiver station，BTS)，WCDMA中的基站(NodeB)，LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或收发点(transmission reception point,TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的传输接收点(Transmission receiving point,TRP)。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)，和/或分布单元(distributed unit,DU)。网络设备还可以是服务器，可穿戴设备，或车载设备等。以下以网络设备为基站为例进行说明。所述多个网络设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端进行通信，也可以通过中继站与终端进行通信。终端可以与不同技术的多个基站进行通信，例如，终端可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
终端是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和 卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、车载终端设备、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、可穿戴终端设备等等。本申请的实施例对应用场景不做限定。终端有时也可以称为终端设备、用户设备(user equipment，UE)、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、终端设备、无线通信设备、UE代理或UE装置等。终端也可以是固定的或者移动的。
在现有基于LTE的V2X通信的V2V模式下，车载终端间直接通信的距离为300米以内。但在NR V2X通信的V2V模式下，车载终端间的通信距离需求被扩大到1000米以内，且要求端到端时延不超过1毫秒(ms)。车载终端间不经过网络设备直接进行通信可以满足上述端到端时延的要求，但由于车载终端的发射功率有限，车载终端间通过单跳链路直接通信的距离无法满足上述新需求。
本申请实施例提供的路由方法及装置，通过在蜂窝无线通信网络中引入无需维护路由信息的组播路由方法，实现了蜂窝无线通信网络中高可靠性的多跳传输，解决了终端间通过单跳链路直接通信距离较短的问题。
下面以具体实施例结合附图对本申请的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图2为本申请实施例提供的一种路由方法的流程图。如图2所示，本实施例的方法可以包括：
200部分，源节点发送第一数据包，所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点。可选地，本申请实施例可以包含图2的250部分，即所述源节点接收网络设备发送的指示信息，并根据所述指示信息确定所述第一数据包的转发节点集合的信息。
210部分，至少两个转发节点接收来自于所述源节点的所述第一数据包；所述第一数据包中包含所述业务数据、所述第一数据包的转发节点集合的信息和所述目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点。
220部分，所述至少两个转发节点中的至少一个转发节点发送第二数据包；所述第二数据包中包含所述业务数据，所述第二数据包的转发节点集合的信息和所述目的节点的信息。
230部分，所述目的节点集合中的至少一个目的节点和/或所述目的节点接收所述第二数据包。
本申请实施例中涉及的节点(即源节点、转发节点、目的节点)可以是终端，也可以是网络设备。下面将以所述节点为终端为例，并结合具体实施方式分别说明上述部分。
在200部分中，源节点有业务数据需要发送给至少一个目的节点，所述至少一个 目的节点包含在目的节点集合中。可以理解的是，当所述源节点的业务数据仅需要发送给一个目的节点，则该目的节点也可以不属于该目的节点集合。本申请实施例不限定该业务数据的类型。可以理解的是，该业务数据可以理解为源节点希望传递给目的节点的业务数据，例如，在车联网场景下，该业务数据可以是车载终端向其他车载终端发送的传感信息或者控制信息。再例如，在工业控制场景下，该业务数据可以是工业控制终端向其他工业控制终端发送的传感信息或者控制信息。在不引起歧义的情况下，该业务数据也可以有其他名称，例如可以是如下任一种：数据信息、数据比特、数据信息比特、原始信息、原始数据和数据载荷(payload)，此处不做具体限定。
结合本申请考虑的场景，所述目的节点超出了所述源节点的通信范围，即所述源节点发送的信号无法被所述至少一个目的节点接收到。因此本申请实施例使用多跳传输的方法，将所述源节点的业务数据通过转发节点转发给所述目的节点，从而使得超出所述源节点通信范围的目的节点能够接收到所述业务数据。
在一种可能的实施方式中，源节点发送第一数据包，所述第一数据包包含业务数据、第一数据包转发节点集合的信息和目的节点的信息。所述目的节点的信息标识目的节点集合和/或目的节点，所述目的节点集合包含至少一个目的节点；所述目的节点可以理解为所述第一数据包的业务数据最终需要到达的节点。所述第一数据包转发节点集合的信息标识第一数据包的转发节点集合，所述第一数据包的转发节点集合包含至少两个转发节点，所述转发节点可以理解为将所述业务数据转发给上述目的节点的中继节点。
以图3A的示意为例的节点分布中包含一个目的节点，则所述目的节点的信息标识该目的节点或标识包含该目的节点的目的节点集合。示例性的，所述目的节点的信息可以是该目的节点的地址(例如，所述目的节点的单播地址)，也可以是包含该目的节点的目的节点集合的地址(例如，所述目的节点集合的组播或广播地址)。所述转发节点集合包含两个转发节点(即转发节点A和转发节点B)，则所述第一数据包转发节点集合的信息标识该第一数据包的转发节点集合。示例性的，所述第一数据包转发节点集合的信息可以是该第一数据包的转发节点集合的地址(例如，所述第一数据包转发节点集合的组播或广播地址)。
以图3B的示意为例的节点分布中包含两个目的节点(目的节点A和目的节点B)，则所述目的节点的信息标识该目的节点集合。示例性的，所述目的节点的信息可以是该目的节点集合的地址(例如，所述目的节点集合的组播或广播地址)。所述转发节点集合包含两个转发节点(即转发节点A和转发节点B)，其中转发节点A和目的节点A在图3B的示例中是同一个节点，则所述第一数据包转发节点集合的信息标识该第一数据包转发节点集合。示例性的，所述第一数据包转发节点集合的信息可以是该第一数据包转发节点集合的地址(例如，所述第一数据包转发节点集合的组播或广播地址)。
本申请实施例中涉及的单播地址可以是互联网协议(Internet Protocl,IP)单播地址、物理(Physical,PHY)单播地址、媒介接入控制(Medium access control，MAC)单播地址、无线链路控制(Radio link control，RLC)单播地址、分组数据汇聚协议(Packet data convergence protocol，PDCP)单播地址、或业务数据适配协议(Service data adaptation protocol，SDAP)单播地址等；本申请实施例中涉及的单播地址还可以是一个新增协议层(例如适配层)单播地址。本申请实施例中涉及的单播地址也可以是节点标识、节点索 引、或节点ID等，例如是终端的国际移动用户识别码(International Mobile Subscriber Identity，IMSI)、终端的临时标识(如临时移动客户识别码(Temporary Mobile Subscriber Identity，TMSI)，小区无线网络临时标识Cell Radio Network Temporary Identifier，C-RNTI)等)、或终端的近距离服务(Proximity service，Prose)UE ID等。本申请实施例中涉及的单播地址还可以为节点的位置信息，例如终端所处小区的标识、终端所处跟踪区的标识、终端所处路由区的标识、终端所处接入网通知区的标识、或终端的地理位置坐标信息等。
本申请实施例中涉及的组播/广播地址可以是IP组播地址、IP广播地址、PHY组播地址、PHY广播地址、MAC组播地址、MAC广播地址、RLC组播地址、RLC广播地址、PDCP组播地址、PDCP广播地址、SDAP组播地址、或SDAP广播地址等；本申请实施例中涉及的组播/广播地址还可以是一个新增协议层(例如适配层)组播或新增协议层广播地址。本申请实施例中涉及的组播/广播地址也可以是节点组标识、节点群标识、节点组索引、节点群索引、节点组ID、或节点群ID等，例如是终端组的IMSI、终端群的IMSI、终端组的临时标识(如临时移动组标识(Temporary Mobile Group Identity，TMGI)，组无线网络临时标识Group Radio Network Temporary Identifier，G-RNTI)等)、终端组群的临时标识(如临时移动组标识(Temporary Mobile Group Identity，TMGI)，组无线网络临时标识Group Radio Network Temporary Identifier，G-RNTI)等)、终端组的Prose UE Group ID、或终端群的Prose UE Group ID等。本申请实施例中涉及的组播/广播地址还可以为节点组的位置信息或节点群的位置信息，例如终端组/终端群所处小区组的标识、小区群的标识、终端组所处跟踪区组/跟踪区群的标识、终端群所处跟踪区组/跟踪区群的标识、终端组所处路由区组/路由区群的标识、终端群所处路由区组/路由区群的标识、终端组所处接入网通知区组/接入网通知区群的标识、终端群所处接入网通知区组/接入网通知区群的标识、终端组所处广播服务区的标识、终端群所处广播服务区的标识、终端组的地理位置坐标信息、或终端群的地理位置坐标信息等。
图4A给出了一种第一数据包格式的示意。所述第一数据包格式中包含三个字段，分别承载所述第一数据包的转发节点集合的信息、所述目的节点的信息和所述业务数据。需要说明的是，本申请实施例并不限制第一数据包格式中各字段的排布顺序；示例性的，一种排布顺序可以是：第一数据包的转发节点集合的信息、目的节点的信息和业务数据，或者目的节点的信息、第一数据包的转发节点集合的信息和业务数据。可以理解的是，图4A示意的第一数据包格式中各字段的长度仅起示意作用。
可选地，所述第一数据包还可以进一步包含时间信息、所述第一数据包的序号、所述业务数据的最大转发次数、所述第一数据包的源节点信息、发送第一数据包的本节点信息或所述第一数据包的服务质量(Quality of Service,QoS)需求中的任意一项或任意几项。
所述时间信息包含所述业务数据的有效时间信息和/或所述第二数据包的发送时间信息。所述业务数据的有效时间信息用于标识所述业务数据的有效时间，节点根据所述业务数据的有效时间信息可以确定所述业务数据在当前时间是否有效。所述第二数据包的发送时间信息用于标识第二数据包的发送时间，所述第二数据包是转发节点发送给目的节点的数据包，在220部分和230部分中会对所述第二数据包进行更详细的描述；节点根据所述第二数据包的发送时间信息可以确定所述第二数据包的发送时间。上述时间信息可以是绝 对时间的信息，例如是采用世界协调时间(Universal Time Coordinated,UTC)的时间或是采用全球定位系统(Global Position System,GPS)时钟的时间等，也可以是相对时间的信息，例如是GPS时钟计数偏移或是以网络广播的系统帧号(System Frame Number,SFN)为参考的相对SFN偏移等。所述时间信息还可以包含其他时间信息，例如可以包含第一数据包的产生时间信息等。
所述第一数据包的序号用于标识或索引所述第一数据包，便于接收节点根据该序号进行重复检测，避免重复转发已经发送过的包含在第一数据包中的业务数据，也可以用来避免重复接收已经接收过的包含在第一数据包中的业务数据。可选地，所述第一数据包的序号由所述源节点生成并包含在所述第一数据包中，转发节点在转发所述第一数据包包含的业务数据时不会改变所述第一数据包的序号，即可以理解为转发节点在转发包含所述业务数据的第二数据包时，第二数据包的序号与所述第一数据包的序号相同。
所述业务数据的最大转发次数用于转发节点确定所述业务数据允许被转发的次数。以业务数据的最大转发次数为2为例，转发节点根据所述业务数据的最大转发次数确定所述业务数据允许被转发两次；以业务数据的最大转发次数为0为例，转发节点根据所述业务数据的最大转发次数确定所述业务数据不能再被转发。可选的，转发节点也可以将所述业务数据的最大转发次数做其他预定义解读后再确定所述业务数据允许被转发的次数。例如所述预定义解读方式为“所述业务数据的最大转发次数减1”，以业务数据的最大转发次数为2为例，转发节点根据所述业务数据的最大转发次数，并结合上述示例的预定义解读方式，确定所述业务数据允许被转发一次。
所述第一数据包的源节点信息标识所述源节点，例如所述第一数据包的源节点信息可以是所述源节点的单播地址。
所述发送第一数据包的本节点信息标识发送所述第一数据包的节点。具体地，所述发送第一数据包的本节点信息标识所述源节点，例如所述第一数据包的本节点信息可以是所述源节点的单播地址。数据包中携带本节点信息，可用于转发节点和目的节点进行反向路由学习，能够让转发节点直接获得上一跳节点的信息(例如上一跳节点的地址信息)。例如转发节点接收到的数据包中的本节点信息标识了源节点，则转发节点可以获知当其需要发送目的节点为所述“源节点”的数据包时，可以向由所述“本节点信息”标识的节点转发。
所述第一数据包的QoS需求标识所述第一数据包的业务数据的QoS需求，所述QoS需求包含下述任意一项：
优先级需求，可靠性需求，时延需求，优先级需求和可靠性需求，可靠性需求和时延需求，优先级需求和时延需求，优先级需求和可靠性需求和时延需求；
转发节点可以根据所述第一数据包的QoS需求对所述第一数据包的业务数据进行转发，以提供相应的QoS保障。例如，所述第一数据包的QoS需求可以标识近距离单包优先级(Prose per packet priority，PPPP)、近距离单包可靠性(Prose per packet reliability，PPPR)、QoS等级标识符(QoS class identifier，QCI)、5G QoS标识符(5G QoS identifier，5QI)、或差分服务代码点(Differentiated Services Code Point，DSCP)等。
图4B给出了另一种第一数据包格式的示意。在图4A给出的格式基础上，图4B给出的第一数据包格式进一步包含了上述时间信息、第一数据包的序号、业务数据的最大转发次数、第一数据包的源节点信息、发送第一数据包的本节点信息或第一数据包的QoS需求中的至少一项。本申请实施例并不限制第一数据包格式中各字段的排布顺序，并 且图4B示意的第一数据包格式中各字段的长度仅起示意作用。所述源节点在执行200部分前，还可以执行250部分，即接收网络设备发送的指示信息，并根据所述指示信息确定所述第一数据包的转发节点集合的信息。在一种可能的实施方式中，所述网络设备可以将所述第一数据包转发节点集合的组播或广播地址通过所述指示信息发送给所述源节点，所述源节点接收所述指示信息后，即可确定所述第一数据包的转发节点集合的信息为所述第一数据包转发节点集合的组播或广播地址。所述指示信息可以是下行控制信息(Downlink Control Information，DCI)、无线资源控制(Radio Resource Control，RRC)信令、系统消息或媒体接入控制的控制元素(Medium Access Control Control Element，MAC CE)等，或者是上述各种信令的任意组合。
在210部分的一种可能的实施方式中，所述第一数据包的转发节点集合包含的至少两个转发节点中的至少一个转发节点根据所述第一数据包的转发节点集合的信息和所述目的节点的信息接收所述第一数据包，所述第一数据包的转发节点集合的信息标识所述转发节点集合，所述目的节点的信息未标识所述转发节点集合包含的所述至少两个转发节点中的至少一个转发节点，即可以理解为所述至少两个转发节点中的至少一个转发节点为非目的节点。所述至少两个转发节点中的至少一个转发节点确定所述第一数据包的转发节点集合的信息标识所述转发节点集合，并确定所述目的节点的信息未标识所述至少两个转发节点中的至少一个转发节点，则所述至少两个转发节点中的至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，所述转发协议层可以为物理(Physical，PHY)协议层、媒介接入控制(Media Access Control，MAC)协议层、无线链路控制(Radio Link Control，RLC)协议层、分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)协议层、业务数据适配协议(Service Data Adaptation Protocol，SDAP)协议层、或其他新增的协议层。此时所述转发节点集合包含的所述至少两个转发节点中的至少一个转发节点为非目的节点，因此所述至少两个转发节点中的至少一个转发节点不需要知道上述业务数据的具体内容(即无需解析出上述业务数据)，只要转发所述第一数据包中的业务数据即可。
以图3A为例，源节点发送的第一数据包包含的第一数据包的转发节点集合的信息标识了图3A中的转发节点集合，所述转发节点集合包含转发节点A和转发节点B，则所述转发节点A和转发节点B都可以接收所述第一数据包。所述第一数据包包含的目的节点的信息标识了图3A中的目的节点，且未标识图3A中的转发节点集合(也可以理解为未标识图3A中的转发节点A和转发节点B)，则所述转发节点A和转发节点B在转发协议层和所述转发协议层以下的协议层接收所述第一数据包。图5A给出了这种情形下以MAC协议层作为转发协议层、以转发节点A为例的数据流向示意，所述转发节点A仅会在转发协议层(即MAC协议层)和所述转发协议层以下的协议层(即PHY协议层)接收或处理所述第一数据包，所述第一数据包包含的业务数据不会再被转发协议层以上的协议层(即RLC协议层和/或PDCP协议层)接收或处理。此处转发节点A在MAC协议层和MAC协议层以下的协议层接收所述第一数据包，而无需进一步解析该第一数据包中的业务数据，从而简化了处理流程，并且提高了在转发节点处对业务数据的安全性保护。
在210部分的另一种可能的实施方式中，所述第一数据包的转发节点集合包含的至少两个转发节点中的至少一个转发节点根据所述第一数据包的转发节点集合的信息和所述目的节点的信息接收所述第一数据包，所述第一数据包的转发节点集合的信息标识所述 转发节点集合，所述目的节点的信息还标识所述转发节点集合包含的所述至少两个转发节点中的至少一个转发节点，即可以理解为所述转发节点集合包含的所述至少两个转发节点中的至少一个转发节点同时也为目的节点。所述至少两个转发节点中的至少一个转发节点确定所述第一数据包的转发节点集合的信息标识所述转发节点集合，并确定所述目的节点的信息还标识所述至少两个转发节点中的至少一个转发节点，则所述至少两个转发节点中的至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，并在所述转发协议层以上的协议层接收所述第一数据包的业务数据，所述转发协议层可以为PHY协议层、MAC协议层、RLC协议层、PDCP协议层、SDAP协议层、或其他新增的协议层。此时所述转发节点集合包含的所述至少两个转发节点中的至少一个转发节点同时也为目的节点，因此所述至少两个转发节点中的至少一个转发节点除了要转发所述第一数据包中业务数据，可选的，还要知道所述业务数据的具体内容(即需要解析出上述业务数据)。
以图3B为例，源节点发送的第一数据包包含的第一数据包的转发节点集合的信息标识了图3B中的转发节点集合，所述转发节点集合包含转发节点A和转发节点B，则所述转发节点A和转发节点B都可以接收所述第一数据包。所述第一数据包包含的目的节点的信息标识了图3B中的目的节点集合，所述目的节点集合包含目的节点A和目的节点B，其中所述目的节点A和转发节点A是同一个节点，因此可以理解为所述目的节点的信息还标识了所述转发节点集合包含的转发节点A。则所述转发节点A在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，并在所述转发协议层以上的协议层接收所述第一数据包的业务数据。图5B给出了这种情形下以MAC协议层作为转发协议层、以转发节点A(同时也是目的节点A)为例的数据流向示意，所述转发节点A会在转发协议层(即MAC协议层)和所述转发协议层以下的协议层(即PHY协议层)接收或处理所述第一数据包，并继续在转发协议层以上的协议层(即RLC协议层和/或PDCP协议层)接收或处理所述第一数据包的业务数据。此时转发节点A(同时也是目的节点A)在MAC协议层和MAC协议层以下的协议层接收所述第一数据包，并且在MAC协议层以上的协议层(例如RLC协议层和/或PDCP协议层)获取所述业务数据，从而能够在一个节点既是转发节点也是目的节点的情况下，顺利完成业务数据的转发和解析。
可以理解的是，上述在转发协议层和所述转发协议层以下的协议层接收所述第一数据包、以及在所述转发协议层以上的协议层接收所述第一数据包的业务数据与协议层对所述第一数据包的处理有关。例如在图5B以MAC协议层作为转发协议层为例，源节点RLC协议层会将所述业务数据传给源节点MAC协议层，所述源节点MAC协议层会在所述业务数据的基础上添加第一数据包的转发节点集合的信息和目的节点的信息，再传至PHY协议层，并通过无线物理资源将所述第一数据包发送出去，所述无线物理资源包含时间、频率、空间、或功率资源中的至少一种。转发节点A(同时也是目的节点A)PHY协议层使用上述无线物理资源接收所述第一数据包，将所述第一数据包传至转发节点A的MAC协议层；所述转发节点A的MAC协议层将所述第一数据包包含的第一数据包的转发节点集合的信息和目的节点的信息去除或隐藏，再将所述业务数据传至转发节点A的RLC协议层做进一步的处理。
可以理解的是，上述图3A或图3B示例中的转发节点A和转发节点B至少有一个按图3A或图3B所述过程接收或处理所述第一数据包，示例性的，所述转发节点A和转发 节点B都按图3A或图3B所述过程接收或处理所述第一数据包。
在220部分中，所述至少两个转发节点中的至少一个转发节点可以有条件的发送所述第二数据包。
在220部分一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含业务数据的有效时间信息，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包中的业务数据为有效，并发送所述第二数据包。可选地，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包中的业务数据为无效，可以不发送所述第二数据包或丢弃所述业务数据。通过该实施方式，可以确保转发节点接收或转发的业务数据是有效的，从而可以避免目的节点接收到无效的业务数据，也可以避免转发无效业务数据造成的空口资源浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含第一数据包的序号，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。可选地，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号确定转发过所述第一数据包中的业务数据，则可以不发送所述第二数据包或丢弃所述业务数据。可选的，该实施方式中，所述第一数据包的序号可唯一的标识所述第一数据包中的业务数据。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含第一数据包的序号和第一数据包的源节点信息，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号和所述第一数据包的源节点信息确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。可选地，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号和所述第一数据包的源节点信息确定转发过所述第一数据包中的业务数据，则可以不发送所述第二数据包或丢弃所述业务数据。可选的，该实施方式中，所述第一数据包的序号和第一数据包的源节点信息可唯一的标识所述第一数据包中的业务数据。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含第一数据包的序号和第一数据包的源节点信息，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号、所述第一数据包的源节点信息和所述第一数据包包含的目的节点的信息确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。可选地，所述至少两个转发节点中的至少一个转发节点根据所述第一数据包的序号、所述第一数据包的源节点信息和所述第一数据包包含的目的节点的信息确定转发过所述第一数据包中的业务数据，则可以不发送所述第二数据包或丢弃所述业务数据。可选的，该实施方式中，所述第一数据包的序号、第一数据包的源节点信息和目的节点的信息可唯一的标识所述第一数据包中的业务数据。通过该实施方式，可以避免转发节点重复转发相同的业务数据，从而可以提高转发效率，也可以避免重复转发造成的空口资源浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第 一数据包还包含业务数据的最大转发次数，所述至少两个转发节点中的至少一个转发节点确定所述业务数据的最大转发次数大于零，并发送所述第二数据包。可选地，所述至少两个转发节点中的至少一个转发节点确定所述业务数据的最大转发次数等于零时，则可以不发送所述第二数据包或丢弃所述业务数据。可选的，如上述200部分的实施方式所述，所述转发节点也可以将所述业务数据的最大转发次数做其他预定义解读后再确定所述第一数据包的业务数据允许被转发的次数，即本实施方式中关于最大转发次数大于零或等于零的描述也可以替换成大于N或等于N，N为整数，N的具体取值可以由上述预定义解读方法确定。通过该实施方式，可以控制业务数据的合理转发次数，避免转发次数过多从而导致业务数据被过度转发而造成空口资源的浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含业务数据的最大转发次数，所述至少两个转发节点中的至少一个转发节点确定所述业务数据的最大转发次数大于零，并发送所述第二数据包。所述第二数据包包含所述业务数据的最大转发次数，所述第二数据包中包含的所述业务数据的最大转发次数满足等式“所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数-1”。通过该实施方式，可以控制业务数据的合理转发次数，避免转发次数过多从而导致业务数据被过度转发而造成空口资源的浪费。
在220部分另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含第二数据包的发送时间信息，所述至少两个转发节点中的至少一个转发节点根据所述第二数据包的发送时间信息确定所述第二数据包的发送时间。通过该实施方式，可以用于指示节点在预定时间发送所述第二数据包，例如对于时延不敏感或者时延要求不高的业务数据，可以利用该第二数据包的发送时间信息指示节点在空口资源空闲的时间发送该第二数据包，从而提高对空口资源的利用率；或者，通过该实施方法，可以用于协调多个节点协作转发的时间，从而可以使目的节点根据更准确的接收转发的业务数据，以提升协作增益。
需要说明的是，上述几种220部分的可能的实施方式还可以相互结合。例如，如上述200部分的实施方式所述，所述第一数据包还包含所述业务数据的有效时间信息和第一数据包的序号，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包中的业务数据有效，且根据所述第一数据包的序号确定未转发过所述第一数据包中的业务数据，并发送所述第二数据包。上述几种220部分的可能的实施方式的其他组合仍属于本申请的保护范围，此处不再赘述。
在220部分中，所述第二数据包的转发节点集合的信息还可以标识非目的节点集合和/或非目的节点，所述非目的节点集合包含至少一个非目的节点。在一种可能的实施方式中，所述第二数据包的转发节点集合的信息标识所述目的节点集合和所述非目的节点集合。以图6的示意为例的节点分布中，转发节点A发送的第二数据包包含第二数据包的转发节点集合的信息标识了图6中的目的节点和非目的节点，则转发节点A发送的第二数据包也可以被所述非目的节点接收。所述非目的节点还可以将所述第二数据包的业务数据包含在第三数据包中发送给所述目的节点。通过该实施方式，可以进一步增加目的节点收到所述业务数据的数量和/或信号强度，进而提高了数据传输的可靠性。
可选地，图6所示的转发节点B也可以发送第二数据包，即图6中所示的转发节点B发送的第二数据包；转发节点B发送的第二数据包包含的第二数据包的转发节点集合的信 息与转发节点A发送的第二数据包包含的第二数据包的转发节点集合的信息可以标识相同的节点集合，也可以标识不同的节点集合，图6以标识不同的节点集合为例。图6中示意转发节点A发送的第二数据包包含的第二数据包的转发节点集合的信息标识非目的节点和目的节点、转发节点B发送的第二数据包包含的第二数据包的转发节点集合的信息标识目的节点。
可以理解的是，本申请的实施例仅以“源节点-转发节点集合-目的节点/目的节点集合”的两跳模式为例说明其实施方式。但本申请并不限制多跳中具体的跳数，例如本申请同样适用于“源节点-转发节点集合-转发节点集合-目的节点/目的节点集合”的三跳模式或有更多转发节点/转发节点集合的多跳模式。例如本申请的实施例也可以涵盖图7所示的三跳传输，其中包含两个转发节点集合。可选的，在所述三跳或更多转发节点集合的多跳传输中，所述第二数据包的转发节点集合的信息可以标识下一跳的转发节点集合(比如，该下一跳的转发节点集合可以理解为上述非目的节点集合)，而不标识目的节点或目的节点集合。
在本申请的一种可能的实施方式中，可选地，可以包含图2的240部分，即所述至少两个转发节点中的至少一个转发节点存储所述第二数据包的业务数据。
可选地，在240部分的一种可能的实施方式中，所述至少两个转发节点中的至少一个转发节点在获知所述第二数据包被所述目的节点集合中的至少一个目的节点和/或所述目的节点正确接收前，存储所述第二数据包的业务数据。本申请不限定所述至少两个转发节点中的至少一个转发节点获知所述第二数据包被所述目的节点集合中的至少一个目的节点和/或所述目的节点正确接收的方法。例如，所述目的节点集合包含的至少一个目的节点和/或所述目的节点在正确接收所述第二数据包后，可以向所述至少两个转发节点中的至少一个转发节点发送正确接收反馈信息以使所述至少两个转发节点中的至少一个转发节点获知所述第二数据包已经被正确接收。再例如，所述目的节点集合包含的至少一个目的节点和/或所述目的节点在正确接收所述第二数据包后，可以通知网络设备，并由网络设备向所述至少两个转发节点中的至少一个转发节点发送正确接收反馈信息以使所述至少两个转发节点中的至少一个转发节点获知所述第二数据包已经被正确接收。通过该实施方式，可以使转发节点在目的节点成功接收所述业务数据前暂存所述业务数据，从而在需要重传或重转发该业务数据时无需再从前一跳节点获取，提高了转发速度。
可选地，在240部分的另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含所述业务数据的有效时间信息，所述至少两个转发节点中的至少一个转发节点根据所述业务数据的有效时间信息确定所述第一数据包的业务数据为有效，并存储所述业务数据。通过该实施方式，可以使转发节点在需要重传或重转发该业务数据有效时无需再从前一跳节点获取，提高了转发速度。
可选地，在240部分的另一种可能的实施方式中，如上述200部分的实施方式所述，所述第一数据包还包含第二数据包的发送时间信息，所述至少两个转发节点中的至少一个转发节点根据所述第二数据包的发送时间信息确定未到所述第二数据包的发送时间，并存储所述第二数据包的业务数据。通过该实施方式，使转发节点在所述第二数据包的发送时间前获得所述第二数据包的业务数据时，可以存储该业务数据，从而在所述第二数据包的发送时间到达后可以直接发送，提高了对业务数据的转发速度。
在220部分一种可能的实施方式中，可选地，所述第二数据包还可以进一步包含时 间信息(例如，所述业务数据的有效时间信息)、所述第二数据包的序号、所述业务数据的最大转发次数、所述第二数据包的源节点信息、发送第二数据包的本节点信息或所述第二数据包的QoS需求中的至少一项。详细可参考200部分中对时间信息、第一数据包的序号、所述业务数据的最大转发次数、所述第一数据包的源节点信息、所述第一数据包的本节点信息和所述第一数据包的QoS需求的描述，此处不再赘述。
可以理解的是，220部分中，所述第二数据包包含的所述业务数据可以是第一数据包包含的业务数据，也可以是基于第一数据包包含的业务数据修改或调整后的业务数据。
在230部分的一种可能的实施方式中，所述目的节点确定所述第二数据包的转发节点集合的信息标识所述目的节点，并确定所述目的节点的信息标识所述目的节点。所述目的节点在转发协议层和所述转发协议层以下的协议层接收所述第二数据包，并在所述转发协议层以上的协议层接收所述第二数据包的业务数据，所述转发协议层为MAC协议层、RLC协议层、PDCP协议层、SDAP协议层或新增协议层。关于所述目的节点在所述转发协议层和所述转发协议层以下的协议层接收接收所述第二数据包、以及在所述转发协议层以上的协议层接收所述第二数据包的业务数据，可参考本申请在图5B中对第一数据包接收的描述，此处不再赘述。
在230部分的一种可能的实施方式中，所述目的节点集合中的至少一个目的节点确定所述第二数据包的转发节点集合的信息标识所述目的节点集合，并确定所述目的节点的信息标识所述目的节点集合。所述目的节点集合中的至少一个目的节点在转发协议层和所述转发协议层以下的协议层接收所述第二数据包，并在所述转发协议层以上的协议层接收所述第二数据包的业务数据，所述转发协议层为MAC协议层、RLC协议层、PDCP协议层、SDAP协议层或新增协议层。关于所述至少一个目的节点在所述转发协议层和所述转发协议层以下的协议层接收接收所述第二数据包、以及在所述转发协议层以上的协议层接收所述第二数据包的业务数据，可参考本申请在图5B中对第一数据包接收的描述，此处不再赘述。
可以理解的是，本申请中涉及的新增协议层可以是一个协议层，也可以是多个协议层。该新增协议层可以在PHY协议层和MAC协议层之间，或者可以在MAC协议层和RLC协议层之间，或者可以在RLC协议层和PDCP协议层之间，或者可以在PDCP协议层和SDAP协议层之间，或者可以在SDAP协议层之上。
在230部分中，所述目的节点集合中的至少一个目的节点和/或所述目的节点可以有条件的接收所述第二数据包。
在230部分一种可能的实施方式中，如上述220部分的实施方式所述，所述第二数据包还包含所述业务数据的有效时间信息，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述业务数据的有效时间信息确定所述第二数据包的业务数据为有效，并接收所述第二数据包。可选地，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述业务数据的有效时间信息确定所述第二数据包的业务数据为无效，则可以不接收或接收后丢弃所述第二数据包。通过该实施方式，可以确保目的节点接收的业务数据是有效的，从而可以避免目的节点接收到无效的业务数据,也可以避免接收无效业务数据造成的空口资源浪费。
在230部分另一种可能的实施方式中，如上述220部分的实施方式所述，所述第二数据包还包含所述第二数据包的序号，所述目的节点集合中的至少一个目的节点和/或 所述目的节点根据所述第二数据包的序号确定未接收过所述第二数据包的业务数据，并接收所述第二数据包。可选地，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述第二数据包的序号确定接收过所述第二数据包的业务数据，则可以不接收或接收后丢弃所述第二数据包。可选的，该实施方式中，所述第二数据包的序号可唯一的标识所述第二数据包的业务数据。通过该实施方式，可以避免目的节点重复接收相同的业务数据，从而可以提高接收效率,也可以避免重复接收造成的空口资源浪费。
在230部分另一种可能的实施方式中，如上述220部分的实施方式所述，所述第二数据包还包含所述第二数据包的序号和所述第二数据包的源节点信息，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述第二数据包的序号和所述第二数据包的源节点信息确定未接收过所述第二数据包的业务数据，并接收所述第二数据包。可选地，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述第二数据包的序号和所述第二数据包源的节点信息确定接收过所述第二数据包的业务数据，则可以不接收或接收后丢弃所述第二数据包。可选的，该实施方式中，所述第二数据包的序号和所述第二数据包的源节点信息可唯一的标识所述第二数据包的业务数据。通过该实施方式，可以避免目的节点重复接收相同的业务数据，从而可以提高转发效率,也可以避免重复接收造成的空口资源浪费。
在230部分另一种可能的实施方式中，如上述220部分的实施方式所述，所述第二数据包还包含所述第二数据包的序号和所述第二数据包的源节点信息，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述第二数据包的序号、所述第二数据包的源节点信息和所述第二数据包包含的目的节点的信息确定未接收过所述第二数据包的业务数据，接收所述第二数据包。可选地，所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述第二数据包的序号、所述第二数据包的源节点信息和所述第二数据包包含的目的节点的信息确定接收过所述第二数据包的业务数据，则可以不接收或接收后丢弃所述第二数据包。可选的，该实施方式中，所述第二数据包的序号、所述第二数据包的源节点信息和所述目的节点的信息可唯一的标识所述第二数据包的业务数据。通过该实施方式，可以避免目的节点重复接收相同的业务数据，从而可以提高转发效率,也可以避免重复接收造成的空口资源浪费。
可以理解的是，在某些场景下对同一业务数据的重复接收可以提高其接收可靠性，因此如果希望通过重复接收所述业务数据以提高所述业务数据接收的可靠性时，可以通过特定的指示(比如数据包中携带重复接收指示信息，或者网落设备通知或配置等方式)配置所述目的节点集合中的至少一个目的节点和/或所述目的节点重复检测或接收的功能。
可选的，上述230部分的几种可能的实施方式还可以相互结合。例如，如上述220部分的实施方式所述，所述第二数据包还包含所述业务数据的有效时间信息和所述第二数据包的序号；所述目的节点集合中的至少一个目的节点和/或所述目的节点根据所述业务数据的有效时间信息确定所述第二数据包的业务数据有效，且根据所述第二数据包的序号确定未接收过所述第二数据包的业务数据，并接收所述第二数据包。上述几种230部分的可能的实施方式的其他组合仍属于本申请的保护范围，此处不再赘述。
本申请实施例提供的路由方法及装置，通过在蜂窝无线通信网络中引入无需维护路由信息的组播路由方法，实现了蜂窝无线通信网络中高可靠性的多跳传输，解决了终端间通过单跳链路直接通信范围不足的问题。
可以理解的是，上述各个方法实施例中由通信设备实现的方法，也可以由可用于通信设备的部件(例如，集成电路，芯片等等)实现。
相应于上述方法实施例给出的无线通信方法，本申请实施例还提供了相应的通信装置(有时也称为通信设备)，所述通信装置包括用于执行上述实施例中每个部分相应的模块。所述模块可以是软件，也可以是硬件，或者是软件和硬件结合。
图8给出了一种通信装置的结构示意图。所述通信装置800可以是图1中的网络设备14，也可以是图1中的终端11、12、或13。通信装置可用于实现上述方法实施例中描述的对应于通信设备的方法，具体可以参见上述方法实施例中的说明。
所述通信装置800可以包括一个或多个处理器801，所述处理器801也可以称为处理单元，可以实现一定的控制功能。所述处理器801可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，分布单元(distributed unit,DU)或集中单元(centralized unit，CU)等)进行控制，执行软件程序，处理软件程序的数据。
在一种可选的设计中，处理器801也可以存有指令803，所述指令可以被所述处理器运行，使得所述通信装置800执行上述方法实施例中描述的对应于通信设备的方法。
在又一种可能的设计中，通信装置800可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。
可选的，所述通信装置800中可以包括一个或多个存储器802，其上可以存有指令804，所述指令可在所述处理器上被运行，使得所述通信装置800执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。可选的，处理器中也可以存储指令和/或数据。所述处理器和存储器可以单独设置，也可以集成在一起。
可选的，所述通信装置800还可以包括收发器805和/或天线806。所述处理器801可以称为处理单元，对通信装置(终端或者网络设备)进行控制。所述收发器805可以称为收发单元、收发机、收发电路或者收发器等，用于实现通信装置的收发功能。
在一种可能的设计中，一种通信装置800(例如，集成电路、无线设备、电路模块，网络设备，终端等)可包括处理器801和收发器805。由收发器805接收来自于源节点的第一数据包；所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点。由处理器801处理所述第一数据包。由收发器805发送第二数据包，所述第二数据包中包含所述业务数据，所述第二数据包的转发节点集合的信息和所述目的节点的信息。
本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、 双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
虽然在以上的实施例描述中,通信装置以网络设备或者终端为例来描述,但本申请中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图8的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述设备可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据和/或指令的存储部件；
(3)ASIC，例如调制解调器(MSM)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
图9提供了一种终端的结构示意图。该终端可适用于图1所示出的系统中。为了便于说明，图9仅示出了终端的主要部件。如图9所示，终端900包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当用户设备开机后，处理器可以读取存储单元中的软件程序，解析并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行处理后得到射频信号并将射频信号通过天线以电磁波的形式向外发送。当有数据发送到用户设备时，射频电路通过天线接收到射频信号，该射频信号被进一步转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图9仅示出了一个存储器和处理器。在实际的终端中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端进行控制，执行软件程序，处理软件程序的数据。图9中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在一个例子中，可以将具有收发功能的天线和控制电路视为终端900的收发单元911，将具有处理功能的处理器视为终端900的处理单元912。如图9所示，终端900 包括收发单元911和处理单元912。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元911中用于实现接收功能的器件视为接收单元，将收发单元911中用于实现发送功能的器件视为发送单元，即收发单元911包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。可选的，上述接收单元和发送单元可以是集成在一起的一个单元，也可以是各自独立的多个单元。上述接收单元和发送单元可以在一个地理位置，也可以分散在多个地理位置。
如图10所示,本申请又一实施例提供了一种通信装置(通信设备)1000。该通信装置可以是终端,也可以是终端的部件(例如，集成电路，芯片等等)；该通信装置还可以是网络设备，也可以是网络设备的部件(例如，集成电路，芯片等等)；或者该通信装置也可以是其他通信模块,用于实现本申请方法实施例中对应于通信设备的操作。该通信装置1000可以包括:处理模块1002。可选的，还可以包括收发模块1001和存储模块1003。
在一种可能的设计中，如图10中的一个或者多个模块可能由一个或者多个处理器来实现，或者由一个或者多个处理器和存储器来实现；或者由一个或多个处理器和收发器实现；或者由一个或者多个处理器、存储器和收发器实现，本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置，也可以集成。
所述通信装置具备实现本申请实施例描述的转发节点的功能，比如，所述通信装置包括所述转发节点执行本申请实施例描述的转发节点涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。详细可进一步参考前述对应方法实施例中的相应描述。
或者所述通信装置具备实现本申请实施例描述的源节点的功能，比如，所述通信装置包括所述源节点执行本申请实施例描述的源节点涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。详细可进一步参考前述对应方法实施例中的相应描述。
或者所述通信装置具备实现本申请实施例描述的网络设备的功能，比如，所述通信装置包括所述网络设备执行本申请实施例描述的网络设备涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。详细可进一步参考前述对应方法实施例中的相应描述。
可选的，本申请实施例中的通信装置1000中各个模块可以用于执行本申请实施例描述的方法，。
在一种可能的实施方式中，收发模块1001接收来自于源节点的第一数据包；所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点；所述收发模块1001发送第二数据包；所述第二数据包中包含所述业务数据，所述第二数据包的转发节点集合的信息和所述目的节点的信息。
可选地，所述目的节点的信息未标识所述至少两个转发节点中的至少一个转发节点； 所述处理模块1002在转发协议层和所述转发协议层以下的协议层处理所述第一数据包，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。
可选地，所述目的节点的信息标识所述至少两个转发节点中的至少一个转发节点；所述处理模块1002在转发协议层和所述转发协议层以下的协议层处理所述第一数据包，所述处理模块1002在所述转发协议层以上的协议层处理所述业务数据，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。
可选地，所述第一数据包包含时间信息、所述第一数据包的序号、所述业务数据的最大转发次数或所述第一数据包的源节点信息中的任意一项或任意几项。
可选地，所述时间信息包含所述业务数据的有效时间信息和/或所述第二数据包的发送时间信息。
可选地，所述第一数据包的序号用于标识或索引所述第一数据包。
可选地，所述业务数据的最大转发次数用于表示所述业务数据允许被转发的最大次数。
可选地，所述第一数据包的源节点信息用于标识所述源节点。
可选地，所述处理模块1002根据如下中任意一项或者任意多项控制所述收发模块1001发送所述第二数据包：所述时间信息、所述第一数据包的序号、所述业务数据的最大转发次数或所述第一数据包的源节点信息。
可选地，所述处理模块1002根据所述业务数据的有效时间信息确定所述业务数据为有效，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002确定所述业务数据的最大转发次数大于零，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002根据所述业务数据的有效时间信息确定所述业务数据为有效，且根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002根据所述业务数据的有效时间信息确定所述业务数据为有效，且所述业务数据的最大转发次数大于零，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，且所述业务数据的最大转发次数大于零，并控制所述收发模块1001发送所述第二数据包。
可选地，所述处理模块1002根据所述业务数据的有效时间信息确定所述业务数据为有效，且根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，且所述业务数据的最大转发次数大于零，并控制所述收发模块1001发送所述第二数据包。
可选地，所述第二数据包中包含所述业务数据的最大转发次数，所述处理模块1002 根据下述等式确定所述第二数据包中包含所述业务数据的最大转发次数：所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数–1。
可选地，所述处理模块1002根据所述第一数据包中包含的第二数据包发送时间信息确定所述第二数据包的发送时间。
可选地，所述第二数据包中包含所述业务数据的最大转发次数，所述处理模块1002根据下述等式确定所述第二数据包中包含所述业务数据的最大转发次数：所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数–1；且所述处理模块1002根据所述第一数据包中包含的第二数据包发送时间信息确定所述第二数据包的发送时间。
可选地，所述处理模块1002在获知所述第二数据包被所述目的节点集合中的至少一个目的节点和/或所述目的节点正确接收前，控制所述存储模块1003存储所述业务数据。
可选地，所述处理模块1002根据所述第一数据包中包含的所述业务数据的有效时间信息确定所述业务数据为有效，并控制所述存储模块1003存储所述业务数据。
可选地，所述处理模块1002根据所述第一数据包中包含的所述第二数据包的发送时间信息确定未到所述第二数据包的发送时间，并控制所述存储模块1003存储所述业务数据。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、计算机程序，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请所描述的技术可通过各种方式来实现。例如，这些技术可以用硬件、软件或者硬件结合的方式来实现。对于硬件实现，用于在通信装置(例如，基站，终端、网络实体、或芯片)处执行这些技术的处理单元，可以实现在一个或多个通用处理器、数字信号处理器(DSP)、数字信号处理器件(DSPD)、专用集成电路(ASIC)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合中。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“至少一个”是指一个或者多个。至少两个是指两个或者多个。“至少一个”、“任意一个”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个、种)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的指 令、或者这两者的结合。存储器可以是RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介。例如，存储器可以与处理器连接，以使得处理器可以从存储器中读取信息，并可以向存储器存写信息。可选地，存储器还可以集成到处理器中。处理器和存储器可以设置于ASIC中，ASIC可以设置于终端中。可选地，处理器和存储器也可以设置于终端中的不同的部件中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据包中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据包中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据包中心等数据包存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。上面的组合也应当包括在计算机可读介质的保护范围之内。
本说明书中各个实施例之间相同或相似的部分可以互相参考。以上所述的本申请实施方式并不构成对本申请保护范围的限定。

Claims (19)

  1. 一种无线通信的方法，其特征在于，包括：
    至少两个转发节点接收来自于源节点的第一数据包；所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点；
    所述至少两个转发节点中的至少一个转发节点发送第二数据包；所述第二数据包中包含所述业务数据，所述第二数据包的转发节点集合的信息和所述目的节点的信息。
  2. 根据权利要求1所述的方法，其特征在于，至少两个转发节点接收来自于源节点的第一数据包，包括：
    所述目的节点的信息未标识所述至少两个转发节点中的至少一个转发节点；所述至少两个转发节点中的所述至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。
  3. 根据权利要求1所述的方法，其特征在于，至少两个转发节点接收来自于源节点的第一数据包，包括：
    所述目的节点的信息标识所述至少两个转发节点中的至少一个转发节点；所述至少两个转发节点中的所述至少一个转发节点在转发协议层和所述转发协议层以下的协议层接收所述第一数据包，所述至少两个转发节点中的所述至少一个转发节点在所述转发协议层以上的协议层获取所述业务数据，所述转发协议层为如下中任一个：媒介接入控制MAC协议层、无线链路控制RLC协议层、分组数据汇聚协议PDCP协议层和业务数据适配协议SDAP协议层。
  4. 根据权利要求1-3中任一所述的方法，其特征在于，
    所述第一数据包包含时间信息、所述第一数据包的序号、所述业务数据的最大转发次数或所述第一数据包的源节点信息中的任意一项或任意几项；
    所述时间信息包含所述业务数据的有效时间信息和/或所述第二数据包的发送时间信息；
    所述第一数据包的序号用于标识或索引所述第一数据包；
    所述业务数据的最大转发次数用于表示所述业务数据允许被转发的最大次数；
    所述第一数据包的源节点信息用于标识所述源节点；
    所述至少两个转发节点中的至少一个转发节点发送所述第二数据包，包括：
    所述至少两个转发节点中的至少一个转发节点根据如下中任意一项或者任意多项发送所述第二数据包：所述时间信息、所述第一数据包的序号、所述业务数据的最大转发次数或所述第一数据包的源节点信息。
  5. 根据权利要求4所述的方法，其特征在于，所述至少两个转发节点中的至少一个转发节点根据如下中任意一项或者任意多项发送所述第二数据包：所述时间信息、所述第一数据包的序号、所述业务数据的最大转发次数或所述第一数据包的源节点信息，包括：
    满足如下中任意一项时，所述至少两个转发节点中的至少一个转发节点发送所述第二 数据包：
    根据所述业务数据的有效时间信息确定所述业务数据为有效，
    根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，
    所述业务数据的最大转发次数大于零，
    根据所述业务数据的有效时间信息确定所述业务数据为有效，且根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，
    根据所述业务数据的有效时间信息确定所述业务数据为有效，且所述业务数据的最大转发次数大于零，
    根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，且所述业务数据的最大转发次数大于零；或者，
    根据所述业务数据的有效时间信息确定所述业务数据为有效，且根据所述第一数据包的序号确定所述业务数据未被所述至少两个转发节点中的所述至少一个转发节点转发过，且所述业务数据的最大转发次数大于零。
  6. 根据权利要求4或5所述的方法，其特征在于，
    所述第二数据包满足如下中任一项：
    所述第二数据包中包含所述业务数据的最大转发次数，所述第二数据包中包含的所述业务数据的最大转发次数满足等式：所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数-1；
    所述第二数据包的发送时间由所述至少两个转发节点中的至少一个转发节点根据所述第一数据包中包含的第二数据包发送时间信息确定；以及，
    所述第二数据包中包含所述业务数据的最大转发次数，所述第二数据包中包含的所述业务数据的最大转发次数满足等式：所述第二数据包中包含的所述业务数据的最大转发次数＝所述第一数据包中包含的所述业务数据的最大转发次数-1，且所述第二数据包的发送时间由所述至少两个转发节点中的至少一个转发节点根据所述第一数据包包含的第二数据包发送时间信息确定。
  7. 根据权利要求1-6所述的任一方法，其特征在于，所述方法还包括：所述至少两个转发节点中的至少一个转发节点在获知所述第二数据包被所述目的节点集合中的至少一个目的节点和/或所述目的节点正确接收前，存储所述业务数据。
  8. 根据权利要求4-6所述的任一方法，其特征在于，所述方法还包括：所述至少两个转发节点中的至少一个转发节点根据所述第一数据包中包含的所述业务数据的有效时间信息确定所述业务数据为有效，所述至少两个转发节点中的至少一个转发节点存储所述业务数据；或者，
    当所述至少两个转发节点中的至少一个转发节点根据所述第一数据包中包含的所述第二数据包的发送时间信息确定未到所述第二数据包的发送时间，所述至少两个转发节点中的至少一个转发节点存储所述业务数据。
  9. 根据权利要求1-8中任一所述的方法，其特征在于，
    所述第一数据包包含发送第一数据包的本节点信息和/或所述第一数据包的服务质量QoS需求；
    所述发送第一数据包的本节点信息标识所述源节点；所述第一数据包的服务质量QoS需求标识：优先级需求和/或可靠性需求。
  10. 根据权利要求1-9所述的任一方法，其特征在于，
    所述第二数据包包含发送第二数据包的本节点信息和/或所述第二数据包的服务质量QoS需求；
    所述发送第二数据包的本节点信息标识所述至少两个转发节点中的一个转发节点，所述一个转发节点为发送所述第二数据包的转发节点；所述第二数据包的服务质量QoS需求包含：优先级需求和/或可靠性需求。
  11. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求1-10任一项所述的方法。
  12. 一种通信装置，其特征在于，包括：处理器和存储器，所述存储器用于存储程序，当所述程序被所述处理器执行时，使得所述通信装置实现如权利要求1-10任一项中所述转发节点的功能。
  13. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被执行时，实现权利要求1-10任一项中所述转发节点的功能。
  14. 一种通信系统，其特征在于，包括：如权利要求12所述的通信装置，或，如权利要求13所述的存储介质。
  15. 一种无线通信的方法，其特征在于，包括：
    源节点接收网络设备发送的指示信息；
    所述源节点根据所述指示信息发送第一数据包，所述第一数据包中包含业务数据、所述第一数据包的转发节点集合的信息和目的节点的信息；所述第一数据包的转发节点集合包含所述至少两个转发节点，所述目的节点的信息标识目的节点集合和/或目的节点。
  16. 一种通信装置，其特征在于，所述通信装置用于执行如权利要求15所述的方法。
  17. 一种通信装置，其特征在于，包括：处理器和存储器，所述存储器用于存储程序，当所述程序被所述处理器执行时，使得所述通信装置实现如权利要求15所述源节点的功能。
  18. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被执行时，实现权利要求15所述源节点的功能。
  19. 一种通信系统，其特征在于，包括：如权利要求17所述的通信装置，或，如权利要求18所述的存储介质。
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