WO2019047732A1 - 多跳传输方法和装置 - Google Patents

多跳传输方法和装置 Download PDF

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Publication number
WO2019047732A1
WO2019047732A1 PCT/CN2018/102252 CN2018102252W WO2019047732A1 WO 2019047732 A1 WO2019047732 A1 WO 2019047732A1 CN 2018102252 W CN2018102252 W CN 2018102252W WO 2019047732 A1 WO2019047732 A1 WO 2019047732A1
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Prior art keywords
hop
resource
transmission
message
current
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PCT/CN2018/102252
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English (en)
French (fr)
Inventor
李娜
陈卓
杨光
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2019047732A1 publication Critical patent/WO2019047732A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a multi-hop transmission method and apparatus for a car-linked multi-hop network.
  • the message of UE1 (first terminal) can be sent to its neighboring UEs in one of two ways ( terminal):
  • the base station broadcasts the message based on the location information reported by the UE1;
  • UE1 directly sends the message to the neighboring UE through the PC5 port.
  • the base station broadcasts the message, but the problem is that the current UE may be in the cell edge location, and the broadcast range of the base station is limited, so that some UEs around the UE cannot receive the message, and thus in the car network.
  • the environment may cause serious accidents.
  • UE1 is the producer of the message.
  • UE2 second terminal
  • UE1 is the producer of the message.
  • UE2 second terminal
  • UE2 is in the vicinity of UE1, it is not in the range broadcast by the base station, and UE2 cannot receive the message sent by UE1.
  • the UE directly sends the message to the surrounding UE, but the transmission range of the PC5 port is very limited, generally 50-300 m.
  • the UE3 may not receive the message sent by the UE1.
  • an embodiment of the present disclosure provides a multi-hop transmission method and apparatus, which increases the transmission range of a message in a car network by multi-hop transmission, and ensures that a surrounding UE of the current UE can receive a message sent by the current UE.
  • a multi-hop transmission method comprising:
  • the determining, by the current UE, the role of the UE in the multi-hop network of the vehicle includes:
  • the role of the current UE in the car-linked multi-hop network is determined by the network environment and/or UE capabilities.
  • determining a multi-hop transmission range or a multi-hop number of the message of the current UE in the vehicle-linked multi-hop network including:
  • determining transmission resources required to transmit the message includes:
  • the current UE Transmitting, by the current UE, the message allocation transmission resource by using a multi-hop transmission mode, and transmitting the transmission resource to the current UE, where the transmission resource is a single transmission resource, multiple transmission resources, or Current resources allocated by the UE for continuous time; or,
  • the receiving base station transmits the transmission resource allocated by the message to the current UE by using a multi-hop transmission mode, where the transmission resource is a single transmission resource, multiple transmission resources, or resources allocated for the current UE in a continuous time; or
  • a dedicated resource pool allocated by the base station determines a transmission resource required to transmit the message in a multi-hop transmission manner.
  • a multi-hop transmission method comprising:
  • the message is forwarded according to the location of the current UE and the multi-hop transmission range or the number of multi-hops.
  • the performing, according to the location of the current UE, the multi-hop transmission range, or the multi-hop times, to forward the message including:
  • the message is forwarded.
  • the forwarding the message includes:
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and does not receive the available resources sent by the previous hop UE, request the base station to send the resource, and forward the message according to the resource; or
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop.
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop. UE; or,
  • the neighboring UE is configured to select the resource mode by the UE and does not receive the available resources sent by the previous hop UE, select the resource and forward the message according to the resource;
  • the neighboring UE is configured to select the resource mode by the UE and receive the available resources sent by the previous hop UE, select the resource and directly forward the message according to the resource, or directly use the available resource to forward the message, and if there is The remaining transmission resources are indicated to the next hop UE when the transmission resource remains.
  • performing the auxiliary forwarding of the message according to the location of the current UE and the multi-hop transmission range or the multi-hop times including:
  • the message is not forwarded
  • the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is greater than zero, perform determining whether the neighboring UE receives the available resources sent by the previous hop UE;
  • the multi-hop count is subtracted from a preset value to obtain a difference
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, requesting to send the resource to the base station, and forwarding the message according to the resource;
  • the neighboring UE is configured to select a resource mode by the UE, select a resource and directly forward the message according to the resource;
  • the neighboring UE does not receive the available resources sent by the previous hop UE, perform a method of determining whether the neighboring UE uses the base station scheduling resource allocation manner;
  • the neighboring UE receives the available resources sent by the previous hop UE, it is determined whether there is any remaining transmission resources after the current transmission;
  • the message is directly forwarded by using the available resource
  • the message is directly forwarded by using the available resource, and the remaining transmission resource is indicated to the next hop UE.
  • a multi-hop transmission apparatus including: a first processor and a first transceiver, wherein
  • the first processor is configured to determine a role of the current terminal UE in the car connected multi-hop network
  • the first processor is further configured to determine a multi-hop transmission range or a multi-hop number of the current UE message in the vehicle-linked multi-hop network;
  • the first processor is further configured to determine a transmission resource required for transmitting the message
  • the first transceiver is configured to transmit, according to the role of the current UE and the transmission resource, the message, the location of the current UE, and a multi-hop transmission range, or transmit the message and the number of multi-hops to The neighboring UE adjacent to the current UE.
  • the first processor is further configured to: determine, by using a configuration message between neighboring base stations, a role of the current UE in the vehicle-linked multi-hop network; or determine the current UE by using a network environment and/or UE capability. The role in the car multi-hop network.
  • the first processor is further configured to: determine a multi-hop transmission range based on one or more of a location reported by the current UE, a coverage requirement of the message, and a moving speed of the current UE. Or a multi-hop number; or determining a multi-hop transmission range or a multi-hop number based on one or more of a location of the current UE, a coverage requirement of the message, and a moving speed of the current UE.
  • the first processor is further configured to: use the multi-hop transmission mode to transmit the message allocation transmission resource to the current UE, and send the transmission resource to the current UE, where the transmission resource is a single transmission resource, multiple transmission resources, or resources allocated for the current UE for a continuous time; or
  • the first processor is further configured to receive, by using the first transceiver, a transmission resource that is allocated by the base station to the current UE by using a multi-hop transmission manner, where the transmission resource is a single transmission resource and multiple transmissions. a resource or a resource for a continuous time allocated to the current UE; or
  • the first processor is further configured to determine, according to a sending resource pool broadcast by the base station in the system information, a transmission resource required to transmit the message by using a multi-hop transmission manner; or
  • the first processor is further configured to determine, according to a dedicated resource pool allocated by the base station, a transmission resource required to transmit the message by using a multi-hop transmission manner.
  • a multi-hop transmission device including:
  • a second transceiver configured to receive a message that is sent by the current UE according to the role and transmission resource of the current UE, a location of the current UE, and a multi-hop transmission range or the number of messages and multiple hops;
  • a second processor configured to assist in forwarding the message according to the location of the current UE and a multi-hop transmission range or a multi-hop number.
  • the second processor is further configured to:
  • the message is forwarded if the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is less than zero.
  • the second processor is further configured to:
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and does not receive the available resources sent by the previous hop UE, request the base station to send the resource, and forward the message according to the resource; or
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop.
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop. UE; or,
  • the neighboring UE is configured to select the resource mode by the UE and does not receive the available resources sent by the previous hop UE, select the resource and forward the message according to the resource;
  • the neighboring UE is configured to select the resource mode by the UE and receive the available resources sent by the previous hop UE, select the resource and directly forward the message according to the resource, or directly use the available resource to forward the message, and if there is The remaining transmission resources are indicated to the next hop UE when the transmission resource remains.
  • the second processor is further configured to:
  • the message is not forwarded
  • the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is greater than zero, perform determining whether the neighboring UE receives the available resources sent by the previous hop UE;
  • the multi-hop count is subtracted from a preset value to obtain a difference
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, requesting to send the resource to the base station, and forwarding the message according to the resource;
  • the neighboring UE is configured to select a resource mode by the UE, select a resource and directly forward the message according to the resource;
  • the neighboring UE does not receive the available resources sent by the previous hop UE, perform a method of determining whether the neighboring UE uses the base station scheduling resource allocation manner;
  • the neighboring UE receives the available resources sent by the previous hop UE, it is determined whether there is any remaining transmission resources after the current transmission;
  • the message is directly forwarded by using the available resource
  • the message is directly forwarded by using the available resource, and the remaining transmission resource is indicated to the next hop UE.
  • a multi-hop transmission apparatus including: a transceiver, a processor, a memory, and a multi-hop transmission program stored on the memory and operable on the processor, the multi-hop transmission The step of implementing the multi-hop transmission method as described in the first aspect when the program is executed by the processor; or the step of implementing the multi-hop transmission method as described in the second aspect.
  • a sixth aspect further provides a computer readable storage medium having stored thereon a multi-hop transmission program, the multi-hop transmission program being executed by a processor to implement as described in the first aspect The step of the hop transmission method; or the step of implementing the multi-hop transmission method as described in the second aspect.
  • the message, the location of the current UE, and the multi-hop transmission range or the number of messages and multi-hops can be transmitted to the current UE according to the role and transmission resource of the current UE.
  • the neighboring UE, and then the neighboring UE determines whether the neighbor UE is required to forward the message according to the current UE location and the multi-hop transmission range or the multi-hop times, and increases the transmission range of the message in the car network through multi-hop transmission to ensure the current UE.
  • the surrounding UE can receive the message sent by the current UE.
  • the role of the UE in the car-linked multi-hop network is not fixed in the embodiment of the present disclosure.
  • the role of the UE in the multi-hop network of the vehicle association can be determined.
  • the role of the UE in the multi-hop network of the vehicle association can be determined.
  • the vehicle-linked multi-hop network as the vehicle-linked Mesh network as an example, since the role of the UE in the multi-hop network of the vehicle is not fixed, some UEs are always operated with high power (MP/MAP), and some UEs are used. (STA)
  • MP/MAP high power
  • STA There is always a problem that the other UEs do not need to forward data, that is, the UE role configuration is unfair. Further, avoiding the establishment of a mesh network between vehicles and vehicles may result in the problem that some areas have only STAs and no forwarding nodes such as MP/MAP, so that messages cannot be forwarded.
  • 1 is a schematic diagram of a base station broadcast message
  • FIG. 2 is a schematic structural diagram of a mesh network
  • FIG. 3 is a flowchart of a multi-hop transmission method in an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a multi-hop transmission method in still another embodiment of the present disclosure.
  • FIG. 6 is a flowchart of a multi-hop transmission method in still another embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a vehicle-linked multi-hop network (eg, a vehicle-linked Mesh network) in another embodiment of the present disclosure.
  • a vehicle-linked multi-hop network eg, a vehicle-linked Mesh network
  • FIG. 8 is a schematic diagram of V2X configuration negotiation between adjacent base stations in another embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of hybrid transmission based on Uu port broadcast and PC 5-port multi-hop in still another embodiment of the present disclosure.
  • Figure 10 is a block diagram of a multi-hop transmission apparatus in one embodiment of the present disclosure.
  • FIG. 11 is a block diagram of a multi-hop transmission apparatus in another embodiment of the present disclosure.
  • FIG. 12 is a block diagram of a multi-hop transmission apparatus in still another embodiment of the present disclosure.
  • Figure 13 is a block diagram of a multi-hop transmission device in still another embodiment of the present disclosure.
  • Mesh network is a dynamic, self-organizing, self-configuring multi-hop broadband wireless network.
  • the nodes in the Mesh network can be divided into three categories:
  • Mesh (Mesh Portal Point): A wired entry node in a mesh network. It is used for wireless Mesh network and wired network connection. Data communication between the node and the external network is performed through the node.
  • MP Mel Point: A node of the Mesh network function, a communication node between the Mesh networks, and supports automatic topology, automatic route discovery, and packet forwarding between nodes.
  • a MAP node is called a Mesh proxy and is a bridge for stations (STAs) to enter the network.
  • Step 1 Mesh neighbor discovery.
  • the MP collects neighbor information by actively sending a Mesh Probe Request probe request frame or passively listening to a Mesh Beacon frame.
  • Step 2 Mesh connection creation and deletion process. The two parties complete the establishment of the Mesh connection through the interaction of two Peer Link Open/Confirm.
  • Step 3 Mesh routing is established.
  • the Mesh establishment process is directly applied to the Internet of Vehicles environment, information exchange between vehicles and vehicles is required to establish a mesh network.
  • the role of each UE needs to be clear. That is, when the UE is shipped from the factory, it is necessary to determine the role corresponding to each UE, which is MP, MAP, or STA. This would mean that certain UEs are bound to always operate at high power (MP/MAP), while some UEs (STAs) never need to forward data to other UEs. In order to ensure the reasonable use of their own power, many UEs will appear in the role of STA, rather than as MP/MAP. Without MP/MAP, Mesh networks will be difficult to build. In addition to the unfair configuration of the UE role, the establishment of a mesh network between vehicles and vehicles will result in the problem that only certain STAs in certain areas and no forwarding nodes such as MP/MAP will cause messages to be forwarded.
  • the execution body of the method may be a base station, and the specific steps are as follows:
  • Step 301 Determine a role of the current terminal UE in the multi-hop network of the vehicle association
  • the role of the UE in the car-linked multi-hop network is not fixed in the embodiment of the present disclosure.
  • the role of the UE in the multi-hop network of the vehicle association can be determined.
  • the role of the UE in the multi-hop network of the vehicle association can be determined.
  • the vehicle-linked multi-hop network as the vehicle-linked Mesh network as an example
  • some UEs are always operated with high power (MP/MAP), and some UEs are used.
  • STA There is always a problem that the other UEs do not need to forward data, that is, the UE role configuration is unfair. Further, avoiding the establishment of a mesh network between vehicles and vehicles may result in the problem that some areas have only STAs and no forwarding nodes such as MP/MAP, so that messages cannot be forwarded.
  • the role of the current UE in the Mesh network may be any one of MP, MAP, and STA. If the role of the current UE in the Mesh network is MP or MAP, the current UE has the capability of forwarding a message; If the role of the current UE in the vehicle network is STA, the current UE does not have the capability of forwarding a message. At this time, the current UE may broadcast the message to the base station, and the base station broadcasts the message, and then receives the message. The UE forwards the message.
  • the base station may determine the role of the current UE in the vehicle-linked multi-hop network by the following two methods:
  • Mode 1 determining, by using a configuration message between neighboring base stations, the role of the current UE in the multi-hop network of the vehicle association;
  • Mode 2 Determine the role of the current UE in the car connected multi-hop network by the network environment and/or UE Capability.
  • the foregoing network environment may be a location of a UE in the coverage area; the foregoing UE capability may be an ability to help other UEs to forward data, and is not limited thereto.
  • Step 302 Determine a multi-hop transmission range or a multi-hop number of the current UE message in the multiple-hop network of the vehicle.
  • the multi-hop transmission mode is not the direct communication between the base station and the mobile user in the traditional sense, but the source transmits its information to the destination node (sink) by means of one or more fixed or mobile relay nodes, its main It is characterized by dividing the direct transmission path in the traditional sense into a plurality of short paths to deliver source information.
  • the above multi-hop transmission range indicates the range in which the message needs to be forwarded. For example, when the difference between the distance between the neighboring UE and the current UE that receives the message and the multi-hop transmission range is less than or equal to zero, the neighboring UE that receives the message assists in forwarding the message; otherwise, the neighboring UE that receives the message does not need to use Auxiliary forwarding of the message, wherein the neighbor UE is a neighboring UE of the current UE.
  • the multi-hop count described above indicates the number of times the forwarding message passes through the relay node (other UEs in the multi-hop network of the vehicle). For example, when the message is forwarded once, the multi-hop number needs to be subtracted from a preset value (for example, the preset value is 1), and the neighboring UE that receives the message can determine whether it is necessary to assist in forwarding the message based on the multi-hop count. If the number of multi-hops is greater than zero, the neighboring UE that receives the message assists in forwarding the message; if the number of multi-hops is less than or equal to zero, the neighboring UE that receives the message does not need to forward the message.
  • a preset value for example, the preset value is 1
  • the base station may determine the multi-hop transmission range or the multi-hop frequency of the message in the multi-hop network of the vehicle when the message of the current UE needs to be transmitted by using the multi-hop transmission manner in the following manner:
  • the UE adopts a base station scheduling resource allocation mode, and the base station determines a multi-hop transmission range or a multi-hop frequency based on one or more of a current UE reported location, a request message coverage requirement, and a current UE mobility speed.
  • Step 303 Determine a transmission resource required for transmitting the message.
  • the base station may determine, by using the following manner, the transmission resource required to transmit the message by using the multi-hop transmission mode: if the current UE adopts the base station scheduling resource allocation mode, the base station uses the multi-hop transmission for the current UE. Transmitting the message to allocate the transmission resource, and transmitting the transmission resource to the current UE.
  • the transmission resource is a single transmission resource, multiple transmission resources, or resources allocated for the current UE in a continuous time. .
  • Step 304 According to the role of the current UE and the role and transmission resource of the current UE, transmit the message, the location of the current UE, and the multi-hop transmission range, or transmit the message and the number of multi-hops to the neighboring UE adjacent to the current UE.
  • the neighboring UE determines whether the neighboring UE is required to forward the message according to the location of the current UE and the multi-hop transmission range or the number of multi-hops.
  • the neighboring UE may determine whether it needs to assist in forwarding the message by:
  • Mode 1 if the number of multi-hops is greater than zero, the neighboring UE determines that it needs to forward the message; if the number of multi-hops is equal to zero, the neighboring UE determines that it does not need its auxiliary forwarding message, wherein the message is forwarded once, the number of times of multiple hops Subtract a preset value (for example, the preset value is 1);
  • the neighboring UE determines whether the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is less than or equal to zero. If the difference is less than or equal to zero, the neighboring UE determines that it needs to forward the message; otherwise, The neighbor UE determines that it does not need its assistance to forward the message.
  • the transmission range of the message in the car network is increased by multi-hop transmission, and the surrounding UE of the current UE can receive the message sent by the current UE.
  • a multi-hop transmission method suitable for a car-linked multi-hop network is shown in an embodiment of the present disclosure.
  • the execution body of the method may be a current UE, and the specific steps are as follows:
  • Step 401 Determine a role of the current UE in the multi-hop network of the vehicle association
  • the role of the current UE in the car-connected multi-hop network may be any one of MP, MAP, and STA. If the current UE's role in the car-linked multi-hop network is MP or MAP, the current UE has the capability of forwarding messages. If the role of the current UE in the vehicle network is STA, the current UE does not have the capability of forwarding a message. At this time, the current UE can forward the message through the base station and other UEs by sending a message to the base station.
  • the current UE may determine the role of the current UE in the car connected multi-hop network in the following two ways:
  • Mode 1 the current UE acquires the role of the base station in the multi-hop network of the vehicle association, and the base station determines the role of the current UE in the multi-hop network of the vehicle connection through the configuration message between the adjacent base stations;
  • Mode 2 The current UE acquires the role of the base station to notify it in the multi-hop network of the vehicle, and the base station determines the role of the current UE in the multi-hop network of the vehicle connection through the network environment and/or UE Capability.
  • the foregoing network environment may be a location of a UE in the coverage area; the foregoing UE capability may be an ability to help other UEs to forward data, and is not limited thereto.
  • Step 402 Determine a multi-hop transmission range or a multi-hop number of the current UE message in the multi-hop network of the vehicle association;
  • a multi-hop transmission range or a multi-hop number is determined based on one or more of a current UE location, a message coverage requirement, and a current UE mobility speed.
  • Step 403 Determine a transmission resource required for transmitting the message.
  • the current UE may determine the transmission resources required to transmit the message by using a multi-hop transmission manner in the following two manners:
  • Mode 1 if the current UE adopts the resource allocation mode based on the current UE autonomous selection, the current UE determines, according to the transmission resource pool broadcasted by the base station in the system information, the transmission resource required to transmit the message by using a multi-hop transmission manner;
  • Manner 2 If the current UE adopts a base station scheduling resource allocation mode, or if the current UE adopts a resource allocation mode based on the current UE autonomous selection, the current UE determines to use a multi-hop transmission mode based on the dedicated resource pool allocated by the base station. The transmission resources required for the message.
  • Step 404 According to the role of the current UE and the transmission resource, transmit the message, the location of the current UE, and the multi-hop transmission range, or transmit the message and the multi-hop number to the neighboring UE adjacent to the current UE, by the neighbor.
  • the UE determines whether the neighbor UE is required to forward the message according to the location of the current UE and the multi-hop transmission range or the number of multi-hops.
  • the neighboring UE may determine whether it needs to assist in forwarding the message by:
  • Mode 1 if the number of multi-hops is greater than zero, the neighboring UE determines that it needs to forward the message; if the number of multi-hops is equal to zero, the neighboring UE determines that it does not need its auxiliary forwarding message, wherein the message is forwarded once, the number of times of multiple hops Subtract a preset value (for example, the preset value is 1);
  • the neighboring UE determines whether the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is less than or equal to zero. If the difference is less than or equal to zero, the neighboring UE determines that it needs to forward the message; otherwise, The neighbor UE determines that it does not need its assistance to forward the message.
  • the transmission range of the message in the car network is increased by multi-hop transmission, and the surrounding UE of the current UE can receive the message sent by the current UE.
  • the execution body of the method is a neighboring UE.
  • the specific steps are as follows:
  • Step 501 Receive a message that is sent by the current UE according to the role and transmission resource of the current UE, a location of the current UE, a multi-hop transmission range, or the number of messages and multiple hops.
  • Step 502 Perform forwarding of the message according to the location of the current UE and the multi-hop transmission range or the number of multi-hops.
  • the forwarding includes:
  • the message is forwarded.
  • the forwarding the message includes:
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and does not receive the available resources sent by the previous hop UE, request the transmitting resource from the base station, and forward the message according to the resource; or
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop.
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop. UE; or,
  • the neighboring UE is configured to select the resource mode by the UE and does not receive the available resources sent by the previous hop UE, select the resource and forward the message according to the resource;
  • the neighboring UE is configured to select the resource mode by the UE and receive the available resources sent by the previous hop UE, select the resource and directly forward the message according to the resource, or directly use the available resource to forward the message, and if there is The remaining transmission resources are indicated to the next hop UE when the transmission resource remains.
  • the forwarding of the message according to the location of the current UE and the multi-hop transmission range or the multi-hop times includes:
  • the message is not forwarded
  • the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is greater than zero, perform determining whether the neighboring UE receives the available resources sent by the previous hop UE;
  • the multi-hop count is subtracted from a preset value to obtain a difference
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, requesting to send the resource to the base station, and forwarding the message according to the resource;
  • the neighboring UE is configured to select a resource mode by the UE, select a resource and directly forward the message according to the resource;
  • the neighboring UE does not receive the available resources sent by the previous hop UE, perform a method of determining whether the neighboring UE uses the base station scheduling resource allocation manner;
  • the neighboring UE receives the available resources sent by the previous hop UE, it is determined whether there is any remaining transmission resources after the current transmission;
  • the message is directly forwarded by using the available resource
  • the message is directly forwarded by using the available resource, and the remaining transmission resource is indicated to the next hop UE.
  • the transmission range of the message in the car network is increased by multi-hop transmission, and the surrounding UE of the current UE can receive the message sent by the current UE.
  • FIG. 6 a multi-hop transmission method suitable for a vehicle-linked multi-hop network in another embodiment is shown. The specific steps are as follows:
  • Step 601 multi-hop network construction or update.
  • the above multi-hop network may be a car Mesh network
  • the car Mesh network refers to a Mesh network constructed by an in-vehicle terminal.
  • the multi-hop network is a car Mesh network.
  • the base station configures the role of the UE (which can be understood as a vehicle-linked multi-hop network terminal) in the vehicle-linked Mesh network through a configuration message to construct a vehicle-linked Mesh network or update the vehicle-linked Mesh network.
  • the UE which can be understood as a vehicle-linked multi-hop network terminal
  • a Mesh UE Only UEs belonging to the car Mesh network have the capability of forwarding.
  • a UE is a Mesh UE.
  • multiple Mesh UEs construct a Mesh network, and each Mesh UE can forward multi-hop data, and other UEs cannot assist in forwarding multi-hop data.
  • the initialization process of the car Mesh network can be determined by a certain base station or by V2X configuration information between adjacent base stations. See Figure 8.
  • the car Mesh network can be divided into multiples by location or one.
  • the car Mesh network may not belong to a certain base station (see Figure 8), that is, a car-linked Mesh network may span all base stations of the current carrier, or may only cover the coverage of several base stations, and may also include a base station. Part of the coverage.
  • the base station may dynamically configure the car Mesh network for the geographic location of the UE within the coverage.
  • the base station allocates an identifier (Mesh_id) of the car Mesh network and a transmission resource required by each car Mesh network for each car Mesh network, and each Mesh UE in each car Mesh network may be a slave base station.
  • the V2X configuration information sent is known to the car Mesh network to which it belongs.
  • the base station may implement updating of the car-linked Mesh network through V2X configuration information update.
  • the update may be periodically generated or triggered by an event. For example, if a Mesh UE is farther away from other Mesh UEs, the range of multi-hop data transmission is exceeded, and the update car may be triggered at this time.
  • Linked Mesh network Linked Mesh network.
  • Step 602 Determine whether the transmission of the message to be transmitted adopts a Mesh multi-hop transmission mode, and a corresponding multi-hop transmission range (Mesh_range) or multi-hop times (Multi_Hop_Counter).
  • the above message to be transmitted refers to a message that needs to be transmitted on the car Mesh network.
  • the Mesh multi-hop transmission mode may be determined according to the type of the message. If the Mesh multi-hop transmission mode is required, the Mesh_range or Multi_Hop_Counter is further determined. If the message type is V2X type, it indicates that the message is required. Mesh multi-hop transmission is adopted.
  • the Mesh_range or the Multi_Hop_Counter may be determined according to one or more of information such as a UE moving speed, a location where the UE is located, and a coverage requirement of the request message, where the UE moving speed corresponds to a traveling speed of the vehicle carrying the UE;
  • the location includes: the location of the UE in the Mesh network of the car; the coverage requirement of the request message is used to indicate whether the message needs to be transmitted in a large range, that is, the current Mesh UE needs to forward the message to be transmitted to the car.
  • Other Mesh UEs in the Mesh network may be determined according to one or more of information such as a UE moving speed, a location where the UE is located, and a coverage requirement of the request message, where the UE moving speed corresponds to a traveling speed of the vehicle carrying the UE;
  • the location includes: the location of the UE in the Mesh network of the car; the coverage requirement of the request message is used to indicate whether the message needs to be transmitted in
  • the Mesh_range or the Multi_Hop_Counter may be determined by the base station or by the UE, as follows:
  • Mode 1 If the current UE adopts the base station scheduling resource allocation mode based on the PC5 port, the base station determines whether the transmission of the to-be-transmitted message is adopted based on information such as the location of the UE reported by the current UE, the coverage requirement of the request message, and the current UE moving speed. Multi-hop mode and determine Mesh_range or Multi_Hop_Counter.
  • the Mesh_range or the Multi_Hop_Counter may be sent to the UE by using a PDCCH (Physical Downlink Control Channel) control signaling, or may be sent in a broadcast manner.
  • PDCCH Physical Downlink Control Channel
  • the base station needs to allocate corresponding transmission resources for the transmission of the current UE to be transmitted, and the transmission resource may be a single transmission resource, or may be a multiple transmission resource, or may be a continuous transmission resource.
  • Mode 2 If the current UE adopts a PC-port-based UE autonomously selecting a resource allocation mode, the current UE determines whether to adopt a multi-hop mode based on the location of the UE, the coverage requirement of the request message, and the current UE moving speed, and determines the Mesh_range. Or Multi_Hop_Counter.
  • the current UE may be a Mesh UE or an STA that does not have a forwarding function.
  • Step 603 Determine a transmission resource of a V2X message that needs to be transmitted by multiple hops.
  • the transmission resource can be obtained in the following four manners:
  • Mode 1 If the current UE adopts a base station scheduling resource allocation mode based on the PC5 port, the base station needs to allocate a corresponding resource to the V2X message that needs to be transmitted by the UE for multi-hop transmission, and the resource may be a single transmission resource, or may be The resource is transmitted multiple times, and may also be a resource allocated for the UE in continuous time.
  • the transmission resource is sent to the UE by using PDCCH control signaling.
  • Manner 2 If the current UE adopts a PC 5-port-based UE autonomously selecting a resource allocation mode, the UE determines a transmission resource based on a transmission resource pool broadcast by the base station in the system information.
  • the base station may further provide a dedicated transmission resource pool for the vehicle-linked Mesh network, and the dedicated resource may notify the UE by using system information, or may notify the UE in the V2X configuration through dedicated signaling.
  • the message transmission resource may be determined based on the dedicated resource pool allocated by the base station.
  • the base station may also deliver the message to be transmitted in a broadcast manner.
  • the transmission resource is a broadcast resource that is only applicable to the transmission of this message.
  • Step 604 The current Mesh UE broadcasts the Mesh_range and the current Mesh UE location information, or the Multi_Hop_Counter, in the Scheduling Assignment (SA) to inform the neighbor Mesh UE that the message needs its auxiliary forwarding.
  • SA Scheduling Assignment
  • the current Mesh UE adopts the resource allocation mode scheduled by the base station. If the base station allocates only a single transmission resource for the Mesh UE, the current Mesh UE sends the message on the resource; if the base station allocates multiple transmission resources for the Mesh UE, then After the current Mesh UE sends the message on the allocated resource, the remaining allocated resources may be indicated to the neighboring Mesh UE by the SA, so that the neighbor Mesh UE can send the message faster without requesting the transmission resource from the base station.
  • the current Mesh UE adopts the resource allocation mode selected by the UE, and the Mesh UE independently selects resources to forward the SA and the data.
  • the base station simultaneously broadcasts the Mesh_range and the UE location information, and the current Mesh UE does not need any operation.
  • Step 605 The neighbor Mesh UE determines whether it needs to be forwarded according to the received information, and forwards it on the corresponding resource if necessary.
  • the neighboring Mesh UE is configured as the resource allocation mode scheduled by the base station and does not receive the available resources sent by the previous hop Mesh UE, it needs to send a resource to the base station to forward the message;
  • the neighboring Mesh UE may forward the message by using the available resource, and the remaining transmission is when there are remaining transmission resources.
  • the resource is indicated to the next hop Mesh UE;
  • the neighboring Mesh UE is configured to select the resource mode by the UE and does not receive the available resources sent by the previous hop Mesh UE, it directly sends the V2X message after sensing.
  • the neighboring Mesh UE is configured to select the resource mode by the UE and receive the available resources sent by the previous hop Mesh UE, then the message is directly sent after the sensing or the message is directly sent on the available resource, and when there is remaining transmission The resource indicates the remaining transmission resources to the next hop Mesh UE.
  • Step 606 After receiving the V2X message that needs to be transmitted in multiple hops, the Mesh UE that is adjacent to the neighboring Mesh UE continues to perform step 605.
  • FIG. 9 a hybrid transmission scheme based on Uu port broadcast and PC 5-port multi-hop is shown.
  • the base station may determine, according to the received message sent by the current UE, according to the location reported by the UE, the coverage requirement of the request message, and the UE moving speed.
  • the base station determines the Mesh network forwarded by the V2X message, and sends the V2X message in a broadcast manner, and indicates that the related Mesh UE needs to forward the V2X message, and gives related parameters (mesh_range, UE location, etc.).
  • the Mesh UE determines whether it is necessary to forward the V2X message based on its own location information and the Mesh_range and the location information of the UE that received the message. Only when the inequality: the Mesh UE is from the location of the UE receiving the message - Mesh_range ⁇ 0, it assists data forwarding.
  • a multi-hop transmission device is further provided in the embodiment of the present disclosure. Since the principle of solving the problem by the multi-hop transmission device is similar to the multi-hop transmission method in FIG. 3 or FIG. 4 of the embodiment of the present disclosure, the multi-hop is The implementation of the transmission device can be referred to the implementation of the method, and the repetition is not described.
  • the multi-hop transmission apparatus 1000 includes a first processor 1001 and a first transceiver 1002, wherein
  • the first processor is configured to determine a role of the current terminal UE in the car connected multi-hop network
  • the first processor is further configured to determine a multi-hop transmission range or a multi-hop number of the current UE message in the vehicle-linked multi-hop network;
  • the first processor is further configured to determine a transmission resource required for transmitting the message
  • the first transceiver is configured to transmit, according to the role of the current UE and the transmission resource, the message, the location of the current UE, and a multi-hop transmission range, or transmit the message and the number of multi-hops to
  • the neighboring UE that is adjacent to the current UE determines whether the neighboring UE needs to forward the message according to the location of the current UE and the multi-hop transmission range or the number of multi-hops.
  • the first processor is further configured to: determine, by using a configuration message between neighboring base stations, a role of the current UE in the vehicle-linked multi-hop network; or, through a network environment and/or The UE capability determines the role of the current UE in the car connected multi-hop network.
  • the first processor is further configured to: based on one or more of a location reported by the current UE, a coverage requirement of the message, and a moving speed of the current UE Determining a multi-hop transmission range or a multi-hop number; or determining a multi-hop transmission range based on one or more of a location of the current UE, a coverage requirement of the message, and a moving speed of the current UE Multiple hops.
  • the first processor is further configured to: use the multi-hop transmission manner to transmit the message allocation transmission resource to the current UE, and send the transmission resource to the current a UE, where the transmission resource is a single transmission resource, multiple transmission resources, or resources allocated for the current UE in a continuous time; or
  • the first processor is further configured to receive, by using the first transceiver, a transmission resource that is allocated by the base station to the current UE by using a multi-hop transmission manner, where the transmission resource is a single transmission resource and multiple transmissions. a resource or a resource for a continuous time allocated to the current UE; or
  • the first processor is further configured to determine, according to a sending resource pool broadcast by the base station in the system information, a transmission resource required to transmit the message by using a multi-hop transmission manner; or
  • the first processor is further configured to determine, according to a dedicated resource pool allocated by the base station, a transmission resource required to transmit the message by using a multi-hop transmission manner.
  • the multi-hop transmission device provided by this embodiment can perform the foregoing method embodiments, and the implementation principle and technical effects are similar.
  • a multi-hop transmission apparatus which includes:
  • the second transceiver 1101 is configured to receive a message that is sent by the current UE according to the role and transmission resource of the current UE, a location of the current UE, and a multi-hop transmission range or the number of messages and multiple hops;
  • the second processor 1102 is configured to perform auxiliary forwarding of the message according to the location of the current UE and a multi-hop transmission range or a multi-hop number.
  • the second processor 1102 is further configured to:
  • the message is forwarded.
  • the second processor 1102 is further configured to:
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and does not receive the available resources sent by the previous hop UE, request the base station to send the resource, and forward the message according to the resource; or
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop.
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, and receives the available resources sent by the previous hop UE, the available resource is used to forward the message, and when there are remaining transmission resources, the remaining transmission resource is indicated to the next hop. UE; or,
  • the neighboring UE is configured to select the resource mode by the UE and does not receive the available resources sent by the previous hop UE, select the resource and forward the message according to the resource;
  • the neighboring UE is configured to select the resource mode by the UE and receive the available resources sent by the previous hop UE, select the resource and directly forward the message according to the resource, or directly use the available resource to forward the message, and if there is The remaining transmission resources are indicated to the next hop UE when the transmission resource remains.
  • the second processor 1102 is further configured to:
  • the message is not forwarded
  • the difference between the distance between the neighboring UE and the current UE and the multi-hop transmission range is greater than zero, perform determining whether the neighboring UE receives the available resources sent by the previous hop UE;
  • the multi-hop count is subtracted from a preset value to obtain a difference
  • the neighboring UE is configured as a resource allocation mode scheduled by the base station, requesting to send the resource to the base station, and forwarding the message according to the resource;
  • the neighboring UE is configured to select a resource mode by the UE, select a resource and directly forward the message according to the resource;
  • the neighboring UE does not receive the available resources sent by the previous hop UE, perform a method of determining whether the neighboring UE uses the base station scheduling resource allocation manner;
  • the neighboring UE receives the available resources sent by the previous hop UE, it is determined whether there is any remaining transmission resources after the current transmission;
  • the message is directly forwarded by using the available resource
  • the message is directly forwarded by using the available resource, and the remaining transmission resource is indicated to the next hop UE.
  • the multi-hop transmission device provided by this embodiment can perform the foregoing method embodiments, and the implementation principle and technical effects are similar.
  • FIG. 12 is a structural diagram of a multi-hop transmission apparatus applied to an embodiment of the present disclosure, which can implement details of a multi-hop transmission method and achieve the same effect.
  • the multi-hop transmission device 1200 includes a processor 1201, a transceiver 1202, a memory 1203, a user interface 1204, and a bus interface, wherein:
  • the network side device 1200 further includes: a multi-hop transmission program stored on the memory 1203 and operable on the processor 1201.
  • the measurement program is executed by the processor 901, and the following steps are implemented: determining the current terminal UE a role in a car-linked multi-hop network; determining a multi-hop transmission range or a multi-hop number of the current UE message in the car-linked multi-hop network; determining a transmission resource required to transmit the message;
  • the role of the current UE and the transmission resource, the message, the location of the current UE, and the multi-hop transmission range or the message and the multi-hop number are transmitted to the neighboring UE adjacent to the current UE.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or at least two processors represented by processor 1201 and various circuits of memory represented by memory 1203.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1202 can be at least two components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1204 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 in performing operations.
  • FIG. 13 is a schematic structural diagram of a multi-hop transmission apparatus according to another embodiment of the present disclosure.
  • the multi-hop transmission apparatus 1300 shown in FIG. 13 includes at least one processor 1301, a memory 1302, at least one network interface 1304, and a user interface 1303.
  • the various components in the multi-hop transmission device 1300 are coupled together by a bus system 1305.
  • the bus system 1305 is used to implement connection communication between these components.
  • the bus system 1305 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as the bus system 1305 in FIG.
  • the user interface 1303 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 1302 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be a read-only memory (ROM), a programmable read only memory (Programmable ROM (PROM), an erasable programmable read only memory (ErasablePROM, EPROM), and an electrically erasable Program an read only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DirectRambusRAM Direct Memory Bus Random Memory
  • the memory 1302 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 13021 and an application 13022.
  • the operating system 13021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 13022 includes various applications, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 13022.
  • the program or instruction saved by the memory 1302 may be a program or an instruction saved in the application 13022.
  • the following steps are implemented: receiving the role and transmission of the current UE according to the current UE.
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1301 or implemented by the processor 1301.
  • the processor 1301 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1301 or an instruction in a form of software.
  • the processor 1301 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, and a discrete gate. Or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1302, and the processor 1301 reads the information in the memory 1302 and completes the steps of the above method in combination with its hardware.
  • the processing unit can be implemented in one or at least two Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDevices, DSPDs), Programmable Logic Devices (Programmable Logic Devices, PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this disclosure, or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDevices Digital Signal Processing Devices
  • DSPDs Programmable Logic Devices
  • PLD Programmable Logic Devices
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the embodiment of the present disclosure further provides a computer readable storage medium having a multi-hop transmission program stored thereon, and the multi-hop transmission method is implemented by the processor to implement the multi-hop transmission method as described above The steps in .
  • system and “network” are used interchangeably herein.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开实施例提供了一种多跳传输方法和装置，该方法包括：确定当前终端在车联多跳网中的角色；确定所述当前终端的消息在所述车联多跳网中的多跳传输范围或者多跳次数；确定传输所述消息所需的传输资源；根据所述当前终端的角色和所述传输资源，将所述消息、所述当前终端的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前终端相邻的邻终端。

Description

多跳传输方法和装置
相关申请的交叉引用
本申请主张在2017年9月6日在中国提交的中国专利申请号No.201710797170.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种车联多跳网的多跳传输方法和装置。
背景技术
在长期演进(Long Term Evolution，LTE)-车对任何事物(Vehicle-to-Everything，V2X)研究中，UE1(第一终端)的消息可以通过如下两种方式之一下发给其周边的UE(终端)：
方式1、基站基于UE1上报的位置信息广播这条消息；
方式2、UE1通过PC5口直接将该消息发给周边的UE。
但是，这两种方式都不能保证该消息被周边的UE收到。
对于方式1：基站广播这条消息，但存在的问题是，当前UE可能处于小区边缘位置，而基站的广播范围受限，导致该UE周边的某些UE无法接收到该消息，进而在车联网环境下可能造成严重的车祸事故。如图1所示，假设UE1为消息的产生者，虽然UE2(第二终端)在UE1附近，但其不在基站广播的范围内，导致UE2不能接收到UE1发出的消息。
对于方式2：UE直接将该消息发给周围的UE，但PC5口的传输范围很有限，一般为50-300m。当UE3(第三终端)到UE1的距离超过PC5的传输范围时，UE3可能不能收到UE1发出的消息。
发明内容
鉴于上述技术问题，本公开实施例提供一种多跳传输方法和装置，通过多跳传输增大了车联网中消息的传输范围，确保当前UE的周围UE能够接收 到该当前UE发出的消息。
第一方面，提供了一种多跳传输方法，所述方法包括：
确定当前终端UE在车联多跳网中的角色；
确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；
确定传输所述消息所需的传输资源；
根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前UE相邻的邻UE。
可选地，所述确定当前UE在车联多跳网中的角色，包括：
通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；或者，
通过网络环境和/或UE能力确定所述当前UE在车联多跳网中的角色。
可选地，确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数，包括：
基于所述当前UE上报的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数；或者，
基于所述当前UE的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
可选地，确定传输所述消息所需的传输资源，包括：
为所述当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者，
接收基站为所述当前UE采用多跳传输方式传输所述消息分配的传输资源，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所述消息所需的传输资源；或者
基于基站分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
第二方面，还提供了一种多跳传输方法，所述方法包括：
接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
可选地，所述根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等于零，转发所述消息。
可选地，所述转发所述消息，包括：
如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来的可用资源，向所述基站请求发送资源，并根据该资源转发所述消息；或者，
如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
可选地，根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
判断是否接收到所述多跳次数；
如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与所述多跳传输范围的差值是否小于或等于零；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果接收到所述多跳次数，判断所述多跳次数是否大于零；
如果所述多跳次数小于或等于零，则不转发所述消息；
如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
判断所述差值是否等于零；
如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
如果邻UE配置为基站调度的资源分配方式，向所述基站请求发送资源，并根据该资源转发所述消息；
如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
判断邻UE是否接收到前一跳UE发来的可用资源；
如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息，将剩余传输资源指示给下一跳UE。
第三方面，还提供了一种多跳传输装置，包括：第一处理器和第一收发器，其中，
所述第一处理器，用于确定当前终端UE在车联多跳网中的角色；
所述第一处理器，还用于确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；
所述第一处理器，还用于确定传输所述消息所需的传输资源；
所述第一收发器，用于根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数 传输给与所述当前UE相邻的邻UE。
可选地，所述第一处理器进一步用于：通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；或者，通过网络环境和/或UE能力确定所述当前UE在车联多跳网中的角色。
可选地，所述第一处理器进一步用于：基于所述当前UE上报的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数；或者，基于所述当前UE的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
可选地，所述第一处理器进一步用于为所述当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
所述第一处理器进一步用于通过所述第一收发器接收基站为所述当前UE采用多跳传输方式传输所述消息分配的传输资源，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
所述第一处理器进一步用于基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所述消息所需的传输资源；或者
所述第一处理器进一步用于基于基站分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
第四方面，还提供了一种多跳传输装置，包括：
第二收发器，用于接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
第二处理器，用于根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
可选地，所述第二处理器进一步用于：
如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等 于零，转发所述消息。
可选地，所述第二处理器进一步用于：
如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来的可用资源，向所述基站请求发送资源，并根据该资源转发所述消息；或者，
如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
可选地，所述第二处理器进一步用于：
判断是否接收到所述多跳次数；
如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与所述多跳传输范围的差值是否小于或等于零；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果接收到所述多跳次数，判断所述多跳次数是否大于零；
如果所述多跳次数小于或等于零，则不转发所述消息；
如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
判断所述差值是否等于零；
如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
如果邻UE配置为基站调度的资源分配方式，向所述基站请求发送资源，并根据该资源转发所述消息；
如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
判断邻UE是否接收到前一跳UE发来的可用资源；
如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息，将剩余传输资源指示给下一跳UE。
第五方面，还提供了一种多跳传输装置，包括：收发机、处理器、存储器及存储在所述存储器上并可在所述处理器上运行的多跳传输程序，所述多跳传输程序被所述处理器执行时实现如第一方面所述的多跳传输方法的步骤；或者，实现如第二方面所述的多跳传输方法的步骤。
第六方面，还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有多跳传输程序，所述多跳传输程序被处理器执行时实现如第一方面所述的多跳传输方法的步骤；或者，实现如第二方面所述的多跳传输方法的步骤。
上述技术方案中的一个技术方案具有如下优点或有益效果：能够根据当前UE的角色和传输资源，将消息、当前UE的位置以及多跳传输范围或者将消息和多跳次数传输给与当前UE相邻的邻UE，然后由邻UE根据当前UE的位置以及多跳传输范围或者多跳次数判断是否需要邻UE辅助转发消息，通过多跳传输增大了车联网中消息的传输范围，确保当前UE的周围UE能够接收到该当前UE发出的消息。
进一步地，在本公开实施例中车联多跳网中的UE的角色不是固定的。在车联多跳网构建时，可以确定车联多跳网中的UE的角色，当然也可以在对车联多跳网进行更新时，确定车联多跳网中的UE的角色。以该车联多跳网为车联Mesh网为例，由于车联多跳网中的UE的角色不是固定的，避免了某些UE始终以高功率工作(MP/MAP)，而某些UE(STA)始终不需要帮其 他UE转发数据的问题，即避免了UE角色配置不公平。进一步地，避免车车之间建立Mesh网络会导致某些区域只有STA而没有MP/MAP等转发节点，导致消息不能被转发的问题。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为基站广播消息的示意图；
图2为Mesh网络的结构示意图；
图3为本公开的一个实施例中的多跳传输方法的流程图；
图4为本公开的另一个实施例中的多跳传输方法的流程图；
图5为本公开的又一个实施例中的多跳传输方法的流程图；
图6为本公开的又一个实施例中的多跳传输方法的流程图；
图7为本公开的另一个实施例中的车联多跳网(例如车联Mesh网络)的示意图；
图8为本公开的另一个实施例中的相邻基站间V2X配置协商的示意图；
图9为本公开的又一个实施例中的基于Uu口广播和PC5口多跳的混合传输的示意图；
图10为本公开的一个实施例中的多跳传输装置的框图；
图11为本公开的另一个实施例中的多跳传输装置的框图；
图12为本公开的又一个实施例中的多跳传输装置的框图；
图13为本公开的又一个实施例中的多跳传输装置的框图。
具体实施方式
为保证消息发送给周边所有相关UE，一种可能的方式就是将车联网与Mesh网络(即“无线网格网络”，它是“多跳(multi-hop)”网络)相结合。Mesh网络是一种动态、自组织、自配置的多跳宽带无线网络。Mesh网络中 的节点可以分为三大类：
MPP(Mesh Portal Point)：Mesh网络中有线入口节点，用于无线Mesh网络和有线网络连接，通过该节点与外部网络进行数据通讯。
MP(Mesh Point)：Mesh网络功能的节点，Mesh网络间的通讯节点，节点间支持自动拓扑、路由自动发现、数据包转发等功能。
MAP(Mesh Access Point)：MAP节点被称为Mesh代理，是台(Station，STA)进入网络的桥梁。
相关技术中Mesh网络建立过程包括如下三大步骤：
步骤1：Mesh邻居发现。MP通过主动发送Mesh Probe Request探测请求帧，或被动侦听Mesh Beacon(信标)帧，来收集邻居信息。
步骤2：Mesh连接创建和删除过程。双方通过两次Peer Link Open(对等链路打开)/Confirm(确认)的交互，完成Mesh连接的建立。
步骤3：Mesh路由建立。
如果将Mesh建立过程直接应用于车联网环境中，需要车车之间进行信息交互才能建立起Mesh网络。而在建立Mesh网络之前，每个UE的角色都需要明确。即在UE出厂时就要确定每个UE对应的角色，是MP、MAP、还是STA。这将意味着，某些UE势必会始终以高功率工作(MP/MAP)，而某些UE(STA)始终不需要帮其他UE转发数据。为保证自己功率的合理使用，很多UE会以STA的角色出现，而不愿作为MP/MAP。没有了MP/MAP，Mesh网络将难以构建。除了UE角色配置不公平外，车车之间建立Mesh网络会导致某些区域只有STA而没有MP/MAP等转发节点，会导致消息不能被转发的问题。
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
参见图3，图中示出了本公开一个实施例的适用于车联多跳网的多跳传输方法，该方法的执行主体可以是基站，具体步骤如下：
步骤301、确定当前终端UE在车联多跳网中的角色；
需要说明的是，在本公开实施例中车联多跳网中的UE的角色不是固定的。在车联多跳网构建时，可以确定车联多跳网中的UE的角色，当然也可以在对车联多跳网进行更新时，确定车联多跳网中的UE的角色。
以该车联多跳网为车联Mesh网为例，由于车联多跳网中的UE的角色不是固定的，避免了某些UE始终以高功率工作(MP/MAP)，而某些UE(STA)始终不需要帮其他UE转发数据的问题，即避免了UE角色配置不公平。进一步地，避免车车之间建立Mesh网络会导致某些区域只有STA而没有MP/MAP等转发节点，导致消息不能被转发的问题。
当前UE在车联Mesh网中的角色可以是MP、MAP、STA中的任意一种，其中如果当前UE在车联Mesh网中的角色是MP或MAP，该当前UE具有转发消息的能力；如果当前UE在车辆网中的角色是STA，则该当前UE不具有转发消息的能力，此时，该当前UE可以通过将消息发送至基站，由基站广播该消息，再由接收到该消息的其他UE对消息进行转发。
在本公开实施例中，基站可以通过以下两种方式确定当前UE在车联多跳网中的角色：
方式1、通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；
方式2、通过网络环境和/或UE能力(UE Capability)确定当前UE在车联多跳网中的角色。上述网络环境可以是覆盖范围内UE的位置；上述UE能力可以是帮助其他UE转发数据的能力，当然也并不限于此。
步骤302、确定当前UE的消息在车联多跳网中的多跳传输范围或者多跳次数；
多跳传输方式不是传统意义下的基站和移动用户间的直接通信，而是信源借助一个或多个固定的或移动的中继节点来传输它的信息到目的节点(信宿)，它的主要特点是把传统意义下的直接传输路径分成多个短小的路径来传递信源信息的。
上述多跳传输范围表示消息需要被转发的范围。例如当接收到该消息的邻UE与当前UE之间的距离与多跳传输范围的差值小于等于零时，接收到该消息的邻UE辅助转发该消息；否则，接收到该消息的邻UE不用辅助转发该消息，其中，邻UE是当前UE的相邻UE。
上述多跳次数表示转发消息经过中继节点(车联多跳网内的其他UE)的次数。比如当该消息每被转发一次，该多跳次数需要减去一预设值(例如该预设值为1)，接收到消息的邻UE可以基于该多跳次数判断是否需要辅助转发该消息。如果多跳次数大于零时，接收到该消息的邻UE辅助转发该消息；如果多跳次数小于等于零，接收到该消息的邻UE不用辅助转发该消息。
具体地，在本公开实施例中，基站可以通过以下方式在需要采用多跳传输方式传输当前UE的消息时，确定消息在车联多跳网中的多跳传输范围或者多跳次数：如果当前UE采用的是基于基站调度资源分配方式，基站基于当前UE上报的位置、请求消息的覆盖需求和当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
步骤303、确定传输消息所需的传输资源；
在本公开实施例中，基站可以通过以下方式确定需要采用多跳传输方式传输所述消息所需的传输资源：如果当前UE采用的是基于基站调度资源分配方式，基站为当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，可选地，传输资源为单次传输资源、多次传输资源或者为当前UE分配的连续时间内的资源。
步骤304、根据当前UE的角色和当前UE的角色和传输资源，将该消息、当前UE的位置以及多跳传输范围或者将该消息和多跳次数传输给与当前UE相邻的邻UE，由邻UE根据当前UE的位置以及多跳传输范围或者多跳次数判断是否需要邻UE辅助转发所述消息。
在本公开实施例中，邻UE可以通过以下方式判断是否需要其辅助转发该消息：
方式1、如果多跳次数大于零，则由邻UE判定需要其辅助转发消息；如果多跳次数等于零，则由邻UE判定不需要其辅助转发消息，其中，消息每被转发一次，多跳次数减去一预设值(例如该预设值为1)；
方式2、由邻UE判断邻UE与当前UE之间的距离与多跳传输范围的差值是否小于等于零，如果差值小于等于零，则由邻UE判定需要其辅助转发所述消息；否则，由所述邻UE判定不需要其辅助转发所述消息。
在本公开实施例中，通过多跳传输增大了车联网中消息的传输范围，确 保当前UE的周围UE能够接收到该当前UE发出的消息。
参见图4，图中示出了本公开一个实施例的适用于车联多跳网的多跳传输方法，该方法的执行主体可以是当前UE，具体步骤如下：
步骤401、确定当前UE在车联多跳网中的角色；
当前UE在车联多跳网中的角色可以是MP、MAP、STA中的任意一种，其中如果当前UE在车联多跳网中的角色是MP或MAP，该当前UE具有转发消息的能力；如果当前UE在车辆网中的角色是STA，则该当前UE不具有转发消息的能力，此时，该当前UE可以通过将消息发送至基站，通过基站和其他UE实现消息的转发。
在本公开实施例中，当前UE可以通过以下两种方式确定当前UE在车联多跳网中的角色：
方式1、当前UE获取基站通知其在车联多跳网中的角色，该基站是通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；
方式2、当前UE获取基站通知其在车联多跳网中的角色，该基站通过网络环境和/或UE能力(UE Capability)确定当前UE在车联多跳网中的角色。上述网络环境可以是覆盖范围内UE的位置；上述UE能力可以是帮助其他UE转发数据的能力，当然也并不限于此。
步骤402、确定当前UE的消息在车联多跳网中的多跳传输范围或者多跳次数；
例如，基于当前UE的位置、消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
步骤403、确定传输消息所需的传输资源；
在本公开实施例中，当前UE可以通过以下二种方式确定需要采用多跳传输方式传输所述消息所需的传输资源：
方式1、如果当前UE采用的是基于所述当前UE自主选择资源分配方式，当前UE基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所述消息所需的传输资源；
方式2、如果当前UE采用的是基于基站调度资源分配方式，或者如果当前UE采用的是基于所述当前UE自主选择资源分配方式，当前UE基于基站 分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
步骤404、根据当前UE的角色和所述传输资源，将消息、当前UE的位置以及多跳传输范围或者将消息和多跳次数传输给与所述当前UE相邻的邻UE，由所述邻UE根据当前UE的位置以及多跳传输范围或者多跳次数判断是否需要邻UE辅助转发所述消息。
在本公开实施例中，邻UE可以通过以下方式判断是否需要其辅助转发该消息：
方式1、如果多跳次数大于零，则由邻UE判定需要其辅助转发消息；如果多跳次数等于零，则由邻UE判定不需要其辅助转发消息，其中，消息每被转发一次，多跳次数减去一预设值(例如该预设值为1)；
方式2、由邻UE判断邻UE与当前UE之间的距离与多跳传输范围的差值是否小于等于零，如果差值小于等于零，则由邻UE判定需要其辅助转发所述消息；否则，由所述邻UE判定不需要其辅助转发所述消息。
在本公开实施例中，通过多跳传输增大了车联网中消息的传输范围，确保当前UE的周围UE能够接收到该当前UE发出的消息。
参见图5，图中示出了一种多跳传输方法的流程，该方法的执行主体为邻UE，具体步骤如下：
步骤501、接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
步骤502、根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
在本公开实施例中，可选地，所述根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等于零，转发所述消息。
在本公开实施例中，可选地，所述转发所述消息，包括：
如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来 的可用资源，向所述基站请求发送资源，并根据该资源转发所述消息；或者，
如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
在本公开实施例中，可选地，根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
判断是否接收到所述多跳次数；
如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与所述多跳传输范围的差值是否小于或等于零；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果接收到所述多跳次数，判断所述多跳次数是否大于零；
如果所述多跳次数小于或等于零，则不转发所述消息；
如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
判断所述差值是否等于零；
如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
如果邻UE配置为基站调度的资源分配方式，向所述基站请求发送资源，并根据该资源转发所述消息；
如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
判断邻UE是否接收到前一跳UE发来的可用资源；
如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息，将剩余传输资源指示给下一跳UE。
在本公开实施例中，通过多跳传输增大了车联网中消息的传输范围，确保当前UE的周围UE能够接收到该当前UE发出的消息。
参见图6，图中示出了又一个实施例中适用于车联多跳网的多跳传输方法，具体步骤如下：
步骤601、多跳网络构建或更新。
上述多跳网络可以是车联Mesh网络，该车联Mesh网络是指由车载终端构建的Mesh网络。为了便于理解，下面以该多跳网络是车联Mesh网络进行举例说明。
例如：基站通过配置消息对UE(可以理解为车联多跳网终端)在车联Mesh网络中的角色进行配置，以构建车联Mesh网络或者对车联Mesh网络更新。
只有属于车联Mesh网络的UE才具有转发的能力，以下称这样的UE为Mesh UE。如图7所示，多个Mesh UE构建一个Mesh网络，每个Mesh UE可以转发多跳数据，其他UE不能辅助转发多跳数据。
车联Mesh网络初始化过程可以通过某个基站自行确定，也可以通过相邻基站间V2X配置信息协商确定，参见图8。
车联Mesh网络可以按地理位置划分为多个，也可以为一个。车联Mesh网络可能并不归属于某个基站(参见图8)，即一个车联Mesh网络可以横跨当前运营商的所有基站，也可以只包括几个基站的覆盖范围，还可以包括基站的一部分覆盖范围。
在本公开实施例中，基站可以针对覆盖范围内UE的地理位置，动态配 置车联Mesh网络。可选地，基站为每个车联Mesh网络分配车联Mesh网络的标识(Mesh_id)以及每个车联Mesh网络所需的传输资源，每个车联Mesh网络中的每个Mesh UE可以从基站发送的V2X配置信息中获知自己所属的车联Mesh网络。
在本公开实施例中，基站可以通过V2X配置信息更新实现车联Mesh网络的更新。
可选地，更新可以是周期性发生的，也可以是事件触发的，如某个Mesh UE与其他Mesh UE越来越远，以至于超出了多跳数据传输的范围，此时可触发更新车联Mesh网络。
步骤602、确定待传输消息的传输是否采用Mesh多跳传输方式、以及相应的多跳传输范围(Mesh_range)或多跳次数(Multi_Hop_Counter)。
上述待传输消息是指需要在车联Mesh网络传输的消息。例如，可以根据消息的类型确定该待传输消息是否采用Mesh多跳传输方式，如果需要采用Mesh多跳传输方式，则再进一步确定Mesh_range或Multi_Hop_Counter，其中，如果消息的类型是V2X类型，则表示需要采用Mesh多跳传输方式。
可选地，Mesh_range或Multi_Hop_Counter可以基于UE移动速度、UE所处位置以及请求消息的覆盖需求等信息中的一项或多项确定，其中UE移动速度对应的承载该UE的车辆的行驶速度；UE所处位置包括：该UE在该车联Mesh网络内的位置；请求消息的覆盖需求用于表示否需要在较大范围内传输该消息，也就是说当前Mesh UE需要将待传输消息转发给车联Mesh网络中的其他Mesh UE。
在本公开实施例中，Mesh_range或Multi_Hop_Counter既可以由基站确定，也可以由UE确定，具体方式如下：
方式1：如果当前UE采用的是基于PC5口的基站调度资源分配方式，基站基于当前UE上报的UE所处位置、请求消息的覆盖需求、当前UE移动速度等信息确定待传输消息的传输是否采用多跳方式，并确定Mesh_range或Multi_Hop_Counter。
其中，Mesh_range或Multi_Hop_Counter可以通过PDCCH(Physical Downlink Control Channel，物理下行控制信道)控制信令下发给UE，或者还 可以通过广播方式下发。与此同时，基站需要为当前UE此次待传输消息的传输分配相应传输资源，该传输资源可以为单次传输资源，也可以是多次传输资源，还可以是一段连续时间传输资源。
方式2：如果当前UE采用的是基于PC5口的UE自主选择资源分配方式，当前UE基于自身所处位置、请求消息的覆盖需求、当前UE移动速度等信息确定是否采用多跳方式，并确定Mesh_range或Multi_Hop_Counter。
需要说明的是，上述当前UE可以为Mesh UE，也可以为不具有转发功能的STA。
步骤603、确定需要多跳传输的V2X消息的传输资源。
在本公开实施例中，可以通过如下四种方式获取传输资源：
方式1：如果当前UE采用的是基于PC5口的基站调度资源分配方式，基站需要为UE此次传输的需要多跳传输的V2X消息分配相应资源，该资源可以为单次传输资源，也可以是多次传输资源，还可以是为UE分配的连续时间内的资源。该传输资源通过PDCCH控制信令下发给UE。
方式2：如果当前UE采用的是基于PC5口的UE自主选择资源分配方式，UE则基于基站在系统信息中广播的发送资源池确定传输资源。
方式3：基站还可以为车联Mesh网络提供专用传输资源池，该专用资源可以通过系统信息告知UE，也可以通过专有信令在V2X配置中告知UE。
不管当前UE采用的是基站调度资源分配方式、还是UE自主选择资源分配方式，均可以基于基站分配的专用资源池确定此次消息传输资源。
方式4：如果UE将该V2X消息上报给基站，基站还可以通过广播方式将该需要传输消息下发。此时传输资源是只适用于本次消息传输的广播资源。
步骤604、当前Mesh UE在调度作业(Scheduling Assignment，SA)中广播Mesh_range和当前Mesh UE位置信息、或者Multi_Hop_Counter，以告知邻Mesh UE该消息需要其辅助转发。
假设当前Mesh UE采用基站调度的资源分配方式，如果基站为Mesh UE只分配了单次传输资源，那么当前Mesh UE在此资源上发送该消息；如果基站为Mesh UE分配了多次传输资源，那么当前MeshUE在分配的资源上发送该消息后，还可以把其余分配资源通过SA指示给邻Mesh UE，以便于邻Mesh  UE更快的发送该消息，而无需向基站请求传输资源。
假设当前Mesh UE采用UE自主选择的资源分配方式，Mesh UE自主选择资源来转发SA和数据。
如果在步骤603中采用基站广播的方式下发该消息，那么基站会同时广播Mesh_range和该UE位置信息，当前Mesh UE无需任何操作。
步骤605、邻Mesh UE基于接收到的信息判断是否需要其辅助转发，如果需要便在相应资源上转发。
邻Mesh UE接收到该V2X消息及Multi_Hop_Counter(＞0)，就将Multi_Hop_Counter减1，然后转发。如果邻UE接收到该V2X消息时Multi_Hop_Counter＝0，则无需转发。或者邻Mesh UE接收到该V2X消息、UE位置及Mesh_range，比较邻Mesh UE距接收到的UE位置的距离－mesh_range≤0，只有当不等式成立时其才辅助V2X消息转发。
如果邻Mesh UE配置为基站调度的资源分配方式，且没有收到前一跳Mesh UE发来的可用资源，那么其需要向基站请求发送资源以转发该消息；
如果邻Mesh UE配置为基站调度的资源分配方式，且收到前一跳Mesh UE发来的可用资源，那么邻Mesh UE可以用该可用资源转发该消息，并当有剩余传输资源时将剩余传输资源指示给下一跳Mesh UE；
如果邻Mesh UE配置为UE自主选择资源方式，且没有收到前一跳Mesh UE发来的可用资源，那么其在sensing后直接发送该V2X消息。
如果邻Mesh UE配置为UE自主选择资源方式，且收到前一跳Mesh UE发来的可用资源，那么其在sensing后直接发送该消息或者直接在可用资源上发送该消息，并当有剩余传输资源时将剩余传输资源指示给下一跳Mesh UE。
步骤606、与邻Mesh UE相邻的Mesh UE收到需要多跳传输的V2X消息后，继续执行步骤605。
参见图9，图中示出了一种基于Uu口广播和PC5口多跳的混合传输方案。
如果当前Mesh UE将该V2X消息通过Uu口发送给了基站，基站可能基于接收到的当前UE发来的消息，并根据UE上报的位置、请求消息的覆盖需求、UE移动速度等信息确定是否采用Mesh多跳方式，并确定Mesh_range。
基站确定V2X消息转发的Mesh网络，并以广播的方式下发该V2X消息， 同时指示相关Mesh UE需要对该V2X消息进行转发，并给出相关参数(mesh_range、UE位置等)。
Mesh UE基于自身位置信息以及Mesh_range、接收到消息的UE的位置信息，确定是否需要为该V2X消息进行转发。只有当不等式：Mesh UE距接收到消息的UE位置的距离－Mesh_range≤0成立时其才辅助数据转发。
基于同一发明构思，本公开实施例中还提供了一种多跳传输装置，由于多跳传输装置解决问题的原理与本公开实施例图3或图4中多跳传输方法相似，因此该多跳传输装置的实施可以参见方法的实施，重复之处不再敷述。
参见图10，图中示出了一种多跳传输装置的结构该多跳传输装置1000包括：第一处理器1001和第一收发器1002，其中，
所述第一处理器，用于确定当前终端UE在车联多跳网中的角色；
所述第一处理器，还用于确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；
所述第一处理器，还用于确定传输所述消息所需的传输资源；
所述第一收发器，用于根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前UE相邻的邻UE，由所述邻UE根据当前UE的位置以及多跳传输范围或者多跳次数判断是否需要邻UE辅助转发所述消息。
在本公开实施例中，可选地，所述第一处理器进一步用于：通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；或者，通过网络环境和/或UE能力确定所述当前UE在车联多跳网中的角色。
在本公开实施例中，可选地，所述第一处理器进一步用于：基于所述当前UE上报的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数；或者，基于所述当前UE的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
在本公开实施例中，可选地，所述第一处理器进一步用于为所述当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，所述传输资源为单次传输资源、多次传输资源或者为所述当前 UE分配的连续时间内的资源；或者
所述第一处理器进一步用于通过所述第一收发器接收基站为所述当前UE采用多跳传输方式传输所述消息分配的传输资源，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
所述第一处理器进一步用于基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所述消息所需的传输资源；或者
所述第一处理器进一步用于基于基站分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
本实施例提供的多跳传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
参见图11，图中示出了一种多跳传输装置，该多跳传输装置1100包括：
第二收发器1101，用于接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
第二处理器1102，用于根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
在本公开实施例中，可选地，所述第二处理器1102进一步用于：
如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等于零，转发所述消息。
在本公开实施例中，可选地，所述第二处理器1102进一步用于：
如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来的可用资源，向所述基站请求发送资源，并根据该资源转发所述消息；或者，
如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
在本公开实施例中，可选地，所述第二处理器1102进一步用于：
判断是否接收到所述多跳次数；
如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与所述多跳传输范围的差值是否小于或等于零；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果接收到所述多跳次数，判断所述多跳次数是否大于零；
如果所述多跳次数小于或等于零，则不转发所述消息；
如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
判断所述差值是否等于零；
如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
如果邻UE配置为基站调度的资源分配方式，向所述基站请求发送资源，并根据该资源转发所述消息；
如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
判断邻UE是否接收到前一跳UE发来的可用资源；
如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息， 将剩余传输资源指示给下一跳UE。
本实施例提供的多跳传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
请参阅图12，图12是本公开实施例应用的多跳传输装置的结构图，能够实现多跳传输方法的细节，并达到相同的效果。如图12所示，多跳传输装置1200包括：处理器1201、收发机1202、存储器1203、用户接口1204和总线接口，其中：
在本公开实施例中，网络侧设备1200还包括：存储在存储器上1203并可在处理器1201上运行的多跳传输程序，测量程序被处理器901、执行时实现如下步骤：确定当前终端UE在车联多跳网中的角色；确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；确定传输所述消息所需的传输资源；根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前UE相邻的邻UE。
在图12中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1201代表的一个或至少两个处理器和存储器1203代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1202可以是至少两个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口1204还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1201负责管理总线架构和通常的处理，存储器1203可以存储处理器1201在执行操作时所使用的数据。
图13为本公开另一实施例提供的多跳传输装置的结构示意图。如图13所示，图13所示的多跳传输装置1300包括：至少一个处理器1301、存储器1302、至少一个网络接口1304和用户接口1303。多跳传输装置1300中的各个组件通过总线系统1305耦合在一起。可理解，总线系统1305用于实现这 些组件之间的连接通信。总线系统1305除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图13中将各种总线都标为总线系统1305。
其中，用户接口1303可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器1302可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-OnlyMemory，ROM)、可编程只读存储器(ProgrammableROM，PROM)、可擦除可编程只读存储器(ErasablePROM，EPROM)、电可擦除可编程只读存储器(ElectricallyEPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(RandomAccessMemory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(StaticRAM，SRAM)、动态随机存取存储器(DynamicRAM，DRAM)、同步动态随机存取存储器(SynchronousDRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(DoubleDataRate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(SynchlinkDRAM，SLDRAM)和直接内存总线随机存取存储器(DirectRambusRAM，DRRAM)。本公开实施例描述的系统和方法的存储器1302旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1302保存了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统13021和应用程序13022。
其中，操作系统13021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序13022，包含各种应用程序，例如媒体播放器(MediaPlayer)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序13022中。
在本公开实施例中，通过调用存储器1302保存的程序或指令，具体的， 可以是应用程序13022中保存的程序或指令，执行时实现以下步骤：接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
上述本公开实施例揭示的方法可以应用于处理器1301中，或者由处理器1301实现。处理器1301可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1301中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1301可以是通用处理器、数字信号处理器(DigitalSignalProcessor，DSP)、专用集成电路(ApplicationSpecific IntegratedCircuit，ASIC)、现成可编程门阵列(FieldProgrammableGateArray，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的保存介质中。该保存介质位于存储器1302，处理器1301读取存储器1302中的信息，结合其硬件完成上述方法的步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或至少两个专用集成电路(ApplicationSpecificIntegratedCircuits，ASIC)、数字信号处理器(DigitalSignalProcessing，DSP)、数字信号处理设备(DSPDevice，DSPD)、可编程逻辑设备(ProgrammableLogicDevice，PLD)、现场可编程门阵列(Field-ProgrammableGateArray，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可保存在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储 介质上存储有多跳传输程序，所述多跳传输程序被处理器执行时实现如上所述的多跳传输方法中的步骤。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和设备，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络侧设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (18)

  1. 一种多跳传输方法，所述方法包括：
    确定当前终端UE在车联多跳网中的角色；
    确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；
    确定传输所述消息所需的传输资源；
    根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前UE相邻的邻UE。
  2. 根据权利要求1所述的方法，其中，所述确定当前UE在车联多跳网中的角色，包括：
    通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；或者，
    通过网络环境和/或UE能力确定所述当前UE在车联多跳网中的角色。
  3. 根据权利要求1所述的方法，其中，确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数，包括：
    基于所述当前UE上报的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数；或者，
    基于所述当前UE的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
  4. 根据权利要求3所述的方法，其中，确定传输所述消息所需的传输资源，包括：
    为所述当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者，
    接收基站为所述当前UE采用多跳传输方式传输所述消息分配的传输资源，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者，
    基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所 述消息所需的传输资源；或者，
    基于基站分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
  5. 一种多跳传输方法，所述方法包括：
    接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
    根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
  6. 根据权利要求5所述的方法，其中，所述根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
    如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等于零，转发所述消息。
  7. 根据权利要求6所述的方法，其中，所述转发所述消息，包括：
    如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来的可用资源，向基站请求发送资源，并根据该资源转发所述消息；或者，
    如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
    如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
    如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
  8. 根据权利要求5所述的方法，其中，根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息，包括：
    判断是否接收到所述多跳次数；
    如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与 所述多跳传输范围的差值是否小于或等于零；
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
    如果接收到所述多跳次数，判断所述多跳次数是否大于零；
    如果所述多跳次数小于或等于零，则不转发所述消息；
    如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
    判断所述差值是否等于零；
    如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
    如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
    如果邻UE配置为基站调度的资源分配方式，向基站请求发送资源，并根据该资源转发所述消息；
    如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
    判断邻UE是否接收到前一跳UE发来的可用资源；
    如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
    如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
    如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
    如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息，将剩余传输资源指示给下一跳UE。
  9. 一种多跳传输装置，包括：第一处理器和第一收发器，其中，
    所述第一处理器，用于确定当前终端UE在车联多跳网中的角色；
    所述第一处理器，还用于确定所述当前UE的消息在所述车联多跳网中的多跳传输范围或者多跳次数；
    所述第一处理器，还用于确定传输所述消息所需的传输资源；
    所述第一收发器，用于根据所述当前UE的角色和所述传输资源，将所述消息、所述当前UE的位置以及多跳传输范围或者将所述消息和多跳次数传输给与所述当前UE相邻的邻UE。
  10. 根据权利要求9所述的多跳传输装置，其中，所述第一处理器进一步用于：通过相邻基站间的配置消息确定当前UE在车联多跳网中的角色；或者，通过网络环境和/或UE能力确定所述当前UE在车联多跳网中的角色。
  11. 根据权利要求9所述的多跳传输装置，其中，所述第一处理器进一步用于：基于所述当前UE上报的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数；或者，基于所述当前UE的位置、所述消息的覆盖需求和所述当前UE的移动速度中的一项或多项，确定多跳传输范围或者多跳次数。
  12. 根据权利要求9所述的多跳传输装置，其中，
    所述第一处理器进一步用于为所述当前UE采用多跳传输方式传输所述消息分配传输资源，并将所述传输资源下发给所述当前UE，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
    所述第一处理器进一步用于通过所述第一收发器接收基站为所述当前UE采用多跳传输方式传输所述消息分配的传输资源，所述传输资源为单次传输资源、多次传输资源或者为所述当前UE分配的连续时间内的资源；或者
    所述第一处理器进一步用于基于基站在系统信息中广播的发送资源池确定采用多跳传输方式传输所述消息所需的传输资源；或者
    所述第一处理器进一步用于基于基站分配的专用资源池确定采用多跳传输方式传输所述消息所需的传输资源。
  13. 一种多跳传输装置，包括：
    第二收发器，用于接收当前UE根据所述当前UE的角色和传输资源发送的消息、所述当前UE的位置以及多跳传输范围或者所述消息和多跳次数；
    第二处理器，用于根据所述当前UE的位置以及多跳传输范围或者多跳次数进行辅助转发所述消息。
  14. 根据权利要求13所述的多跳传输装置，其中，所述第二处理器进一 步用于：
    如果所述多跳次数大于零，将所述多跳次数减去一预设值，然后转发所述消息；如果所述多跳次数等于零，则不转发所述消息；或者
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于等于零，转发所述消息。
  15. 根据权利要求14所述的多跳传输装置，其中，所述第二处理器进一步用于：
    如果邻UE配置为基站调度的资源分配方式，且没有收到前一跳UE发来的可用资源，向所述基站请求发送资源，并根据该资源转发所述消息；或者，
    如果邻UE配置为基站调度的资源分配方式，且收到前一跳UE发来的可用资源，利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE；或者，
    如果邻UE配置为UE自主选择资源方式，且没有收到前一跳UE发来的可用资源，选择资源并根据该资源转发所述消息；或者，
    如果邻UE配置为UE自主选择资源方式，且收到前一跳UE发来的可用资源，选择资源并直接根据该资源转发所述消息，或者直接利用该可用资源转发所述消息，并当有剩余传输资源时将剩余传输资源指示给下一跳UE。
  16. 根据权利要求13所述的多跳传输装置，其中，所述第二处理器进一步用于：
    判断是否接收到所述多跳次数；
    如果没有接收到所述多跳次数，判断邻UE与所述当前UE之间的距离与所述多跳传输范围的差值是否小于或等于零；
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值小于或等于零，则不转发所述消息；
    如果邻UE与所述当前UE之间的距离与所述多跳传输范围的差值大于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
    如果接收到所述多跳次数，判断所述多跳次数是否大于零；
    如果所述多跳次数小于或等于零，则不转发所述消息；
    如果所述多跳次数大于零，将所述多跳次数减去一预设值，得到差值；
    判断所述差值是否等于零；
    如果所述差值不等于零，执行判断邻UE是否接收到前一跳UE发来的可用资源；
    如果所述差值等于零，判断邻UE是否采用基站调度资源分配方式；
    如果邻UE配置为基站调度的资源分配方式，向所述基站请求发送资源，并根据该资源转发所述消息；
    如果邻UE配置为UE自主选择资源方式，选择资源并直接根据该资源转发所述消息；
    判断邻UE是否接收到前一跳UE发来的可用资源；
    如果邻UE没有接收到前一跳UE发来的可用资源，执行判断邻UE是否采用基站调度资源分配方式；
    如果邻UE接收到前一跳UE发来的可用资源，判断本次传输后是否还有剩余传输资源；
    如果本次传输后没有剩余传输资源，直接利用该可用资源转发所述消息；
    如果本次传输后还有剩余传输资源，直接利用该可用资源转发所述消息，将剩余传输资源指示给下一跳UE。
  17. 一种多跳传输装置，包括：收发机、处理器、存储器及存储在所述存储器上并可在所述处理器上运行的多跳传输程序，所述多跳传输程序被所述处理器执行时实现如权利要求1至4中任一项所述的多跳传输方法的步骤；或者，实现如权利要求5至8中任一项所述的多跳传输方法的步骤。
  18. 一种计算机可读存储介质，所述计算机可读存储介质上存储有多跳传输程序，所述多跳传输程序被处理器执行时实现如权利要求1至4中任一项所述的多跳传输方法的步骤；或者，实现如权利要求5至8中任一项所述的多跳传输方法的步骤。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100250106A1 (en) * 2009-03-31 2010-09-30 Gm Global Technology Operations, Inc. Using v2x-based in-network message generation, aggregation, distribution and processing protocols to enable road hazard condition warning applications
US20130093618A1 (en) * 2011-10-17 2013-04-18 Hyundai Motor Company Method and system for improving accuracy of position correction data in differential global positioning system using vehicle to vehicle communication
CN104735765A (zh) * 2015-03-06 2015-06-24 上海无线通信研究中心 基于连接概率的车联网基站功率控制方法及车联网基站
CN104753691A (zh) * 2015-02-27 2015-07-01 同济大学 基于车车协作的车联网紧急消息多跳广播传输方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101299707A (zh) * 2007-09-20 2008-11-05 上海寰创通信科技有限公司 一种路由扩散方法
CN101222325B (zh) * 2008-01-23 2010-05-12 西安西电捷通无线网络通信有限公司 一种基于id的无线多跳网络密钥管理方法
CN101511132B (zh) * 2009-03-23 2011-01-05 杭州华三通信技术有限公司 一种数据报文的转发方法和系统
CN102300234B (zh) * 2010-06-25 2014-05-07 上海无线通信研究中心 一种新型多跳路由传输方法
CN102858023A (zh) * 2011-06-30 2013-01-02 安移通网络公司 网格节点角色发现和自动无线配置
CN105992157A (zh) * 2015-02-06 2016-10-05 北京信威通信技术股份有限公司 一种网络辅助的d2d中继多播方法
CN104703224B (zh) * 2015-04-09 2018-05-15 宇龙计算机通信科技(深圳)有限公司 用于d2d通信的资源配置方法、装置和终端
CN106686724B (zh) * 2015-11-05 2020-04-24 北京信威通信技术股份有限公司 一种3gpp v2x中的协作分集应用方法
US10194459B2 (en) * 2016-02-18 2019-01-29 Lg Electronics Inc. Method of transmitting and receiving message for communication between UEs in wireless communication system and apparatus using method
CN105992262B (zh) * 2016-06-30 2020-03-27 西安电子科技大学 一种无线Mesh网络的自适应模式切换方法
CN106781619A (zh) * 2017-01-22 2017-05-31 西安兖矿科技研发设计有限公司 一种车辆调度系统及车载终端

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100250106A1 (en) * 2009-03-31 2010-09-30 Gm Global Technology Operations, Inc. Using v2x-based in-network message generation, aggregation, distribution and processing protocols to enable road hazard condition warning applications
US20130093618A1 (en) * 2011-10-17 2013-04-18 Hyundai Motor Company Method and system for improving accuracy of position correction data in differential global positioning system using vehicle to vehicle communication
CN104753691A (zh) * 2015-02-27 2015-07-01 同济大学 基于车车协作的车联网紧急消息多跳广播传输方法
CN104735765A (zh) * 2015-03-06 2015-06-24 上海无线通信研究中心 基于连接概率的车联网基站功率控制方法及车联网基站

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LI, XIAOHUAN ET AL.: "Multi-Hop Delay Reduction for Safety-Related Message Broadcasting in Vehicle-to-Vehicle Communications", IET COMMUNICATIONS, vol. 9, no. 3, 2 December 2015 (2015-12-02), pages 404 - 411, XP006051347, DOI: doi:10.1049/iet-com.2014.0303 *

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