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WO2017133624A1 - Procédé et dispositif pour diffuser un message de communication véhicule-tout (v2x) et procédé pour établir une porteuse mbms - Google Patents

Procédé et dispositif pour diffuser un message de communication véhicule-tout (v2x) et procédé pour établir une porteuse mbms Download PDF

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Publication number
WO2017133624A1
WO2017133624A1 PCT/CN2017/072661 CN2017072661W WO2017133624A1 WO 2017133624 A1 WO2017133624 A1 WO 2017133624A1 CN 2017072661 W CN2017072661 W CN 2017072661W WO 2017133624 A1 WO2017133624 A1 WO 2017133624A1
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WIPO (PCT)
Prior art keywords
message
cell
broadcast
mbms
mbms bearer
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Ceased
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PCT/CN2017/072661
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English (en)
Chinese (zh)
Inventor
罗薇
陈琳
马子江
吴蕴璐
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a method and device for broadcasting a car network communication V2X message, and a method for establishing an MBMS bearer.
  • V2X Vehicle-to-Everything Communications
  • V2X Vehicle-to-Everything Communications
  • V2V Vehicle-to-Everything Communications
  • V2P Vehicle-to-Pedestrian Communications
  • V2I Vehicle-to-Infrastructure Communications
  • V2I Vehicle-to-Network Communications
  • V2I Vehicle-to-Network Communications
  • the V2X service is a communication service that transmits through 3GPP with the participation of the transmitting or receiving UE using the V2V application. Based on the other party participating in the communication, the V2X service can be further divided into a V2V service, a V2I service, a V2P service, and a V2N service.
  • the V2P service refers to a service that uses V2P application communication between UEs.
  • the V2I service refers to a service in which a UE and a Road Side Unit (RSU) use a V2I application to interact.
  • RSU Road Side Unit
  • the RSU is an entity that supports V2I services, and can send V2I services to UEs that use V2I applications, or can receive V2I services from UEs that use V2I services.
  • the RSU can be implemented by a base station (eNB) or a stationary UE. If the RSU is implemented by a base station, it is called an eNB type RSU. If the RSU is implemented by the UE, it is called a UE type RSU.
  • FIG. 1 is a schematic diagram of a V2V service scenario according to the related art of the present invention, as shown in FIG.
  • This scenario supports V2V communication based solely on the PC5 interface.
  • the UE sends a V2X message to multiple UEs in the local area through the PC5 interface.
  • scenario 2 the scenario supports V2V communication based only on the Uu port.
  • the UE uplinks the V2X message to the E-UTRAN, and the E-UTRAN broadcasts the V2X message to the multiple UEs in the local area.
  • the scenario supports V2V communication using the Uu and PC5 interfaces.
  • the UE sends a V2X message to the other UEs through the PC5 interface, where 3a: the UE type RSU transmits the V2X message to the E-UTRAN after receiving the V2X message from the PC5 interface, and the E-UTRAN receives the V2X from the UE type RSU.
  • the message is downlink broadcasted to multiple UEs in the local area.
  • 3b The UE uplinks the V2X message to the E-UTRAN.
  • the E-UTRAN After receiving the V2X message from the Uu port, the E-UTRAN transmits the V2X message to one or more UE type RSUs, and the UE type RSU receives the V2X from the E-UTRAN.
  • the message is sent to multiple UEs in the local area through the PC5 interface.
  • the 3rd Generation Partnership Project (3GPP) proposes a Multimedia Broadcast Multicast Service (MBMS), which is a data source from a data source.
  • MBMS Multimedia Broadcast Multicast Service
  • the technology of transmitting data by the target mobile terminal realizes sharing of resources of the network (including the core network and the access network), and improves the utilization of network resources (especially air interface resources).
  • the MBMS transmission mode before 3GPP R13 refers to MBMSN mode transmission (MBMS single frame network), that is, multiple cells transmit the same content at the same time.
  • both the scenario 2 and the scenario 3 require the E-UTRAN to downlink the V2X message to multiple UEs in the local area. Therefore, the existing discussion considers MBMS to be the best use.
  • the mechanism for broadcasting V2X messages The mechanism for broadcasting V2X messages.
  • the network side includes V2X AS (V2X Application Server, V2X Application Server, also called: AS (Application Server), V2X Server (V2X Server), V2X Application Layer (V2X Application Layer), and V2X AS is the content of V2X service.
  • V2X AS is the content of V2X service.
  • Provider BM-SC (Broadcast-Multicast-Service Centre) and/or 3GPP core network, and its RAN access network element (eg, eNB).
  • the network side can establish an MBMS bearer for each V2X service type, corresponding to an MBMS radio access bearer (MBMS radio access bearer) and assign a specific TMGI (Temporary Mobile Group Identity).
  • MBMS radio access bearer MBMS radio access bearer
  • TMGI Temporal Mobile Group Identity
  • the V2X AS divides the V2X service into several V2X service types, and each V2X service type corresponds to one TMGI.
  • the BM-SC needs to establish a separate MBMS bearer for each TMGI. That is to say, each V2X service type needs to establish a separate MBMS bearer, that is, each TMGI corresponds to one V2X service type corresponding to one MBMS bearer.
  • the V2X message may be broadcast in an excessive area, resulting in a large waste of radio resources in the wireless air interface, and also causing many Vehicle UEs to be forced to receive V2X data irrelevant thereto.
  • the package increases the power consumption of the Vehicle UE.
  • the present invention provides a method and device for broadcasting a car network communication V2X message, and a method for establishing an MBMS bearer, so as to at least solve the problem that the V2X message broadcast area is too large in the related art.
  • a broadcast method of a car-network communication V2X message comprising: establishing a multimedia broadcast multicast service MBMS bearer for broadcasting a car-network communication V2X message; receiving a V2X message, and according to a terminal location and/or Or the cell location adjusts the broadcast area of the V2X message to obtain a designated broadcast area, where the terminal location is a location where the terminal that sends the V2X message is located, and the cell location is a location of a source cell that sends the V2X message; And transmitting, by the MBMS bearer, the V2X message in the specified broadcast area.
  • the method further comprises: receiving a session initiation request message from the broadcast/multicast service center BM-SC; for each of the broadcast areas
  • the first cell and/or the second cell are assigned an IP multicast address and a cell tunnel endpoint identifier C-TEID, wherein the IP multicast address and the C-TEID are used to identify the first cell and/or the An address of the second cell, where the second cell is directly opposite the first cell
  • the IP multicast address and the C-TEID are sent to the Mobility Management Entity (MME) by the Session Initiation Request message.
  • MME Mobility Management Entity
  • the method further includes: the first cell in the broadcast area to the second through the X2 interface Transmitting, by the cell, the IP multicast address and the C-TEID information that are allocated by the first cell, and the feedback, by the second cell, after receiving the IP multicast address and the C-TEID information, whether to join the broadcast Regional response message;
  • the method further includes: receiving an MBMS session initiation response message sent by the eNB, where the MBMS session initiation response message is carried in the MBMS session initiation response message Receiving the IP address and C-TEID of the MBMS session.
  • the MBMS session initiation response message carries the IP address corresponding to each cell.
  • the V2X message carries source cell information for sending the V2X message, where the source cell information includes an ID identifier of the source cell, and the MBMS bearer broadcasts in the designated broadcast area.
  • the V2X message includes: transmitting, by using the MBMS bearer, the V2X message to a source cell corresponding to the source cell information and/or a cell adjacent to the source cell in a multicast manner.
  • the transmitting, by the MBMS bearer, the sending, by using the MBMS bearer, the V2X message in the specified broadcast area including: receiving the V2X message, and receiving target cell list information of the V2X message, where the target cell list information The ID identifier of the target cell is included; the V2X message is sent to the cell and/or the base station corresponding to the target cell information by using the MBMS bearer in a unicast manner.
  • a method for establishing an MBMS bearer including: establishing one or more MBMS bearers in units of cells/cell groups; assigning a temporary mobile group identifier TMGI to each of the MBMS bearer sessions And a broadcast area; the activated MBMS bearer request or the session establishment request is sent to the network side network element; wherein the MBMS bearer is used by the network side network element to broadcast and send a V2X message.
  • the establishing one or more MBMS bearers in units of a cell/cell group includes: establishing one or more types of services with the V2X in units of cells/cell groups according to a V2X service type of the V2X message. Corresponding MBMS bearer.
  • the broadcast area includes: the source cell and a cell adjacent to the source cell.
  • the broadcast area includes a coverage area of a base station or a cell.
  • the same TMGI is allocated to the two MBMS bearers.
  • the establishing, by the cell/cell group, one or more MBMS bearers includes: determining whether a target broadcast area of the received V2X message is in a broadcast area set of an existing MBMS bearer; Transmitting an active MBMS bearer request or a session establishment request to the network side network element, where the activating the MBMS bearer request may be
  • the voice establishment request information carries an MBMS broadcast area.
  • the method further includes: receiving the V2X message, and determining an MBMS corresponding to the target broadcast cell of the V2X message. Carrying; delivering the V2X message to the specified MBMS bearer for broadcast transmission.
  • the broadcast area for performing broadcast transmission is determined according to at least one of the following: a predefined area, a V2X service type, a risk level of a traffic accident corresponding to the V2X message, a reach of a traffic accident corresponding to the V2X message, and a cell.
  • the authorized range of the terminal and the geographical location of the cell terminal is determined according to at least one of the following: a predefined area, a V2X service type, a risk level of a traffic accident corresponding to the V2X message, a reach of a traffic accident corresponding to the V2X message, and a cell.
  • a method for establishing another MBMS bearer including: establishing one or more MBMS bearers in units of terminals; assigning a temporary mobile group identifier TMGI and one for each of the MBMS bearer sessions
  • the MBMS bearer activation request or the session establishment request is sent to the network side network element; wherein the MBMS bearer is used by the network side network element to broadcast and send a V2X message.
  • establishing the MBMS bearer in the unit of the terminal includes: establishing one or more MBMS bearers according to the V2X service type of the V2X message in units of terminals.
  • establishing one or more MBMS bearers in the unit of the terminal includes: determining whether the terminal is in a terminal set that has established an MBMS bearer; and if the determination result is no, and according to the geographical location information in the V2X message Determining a broadcast area information list; sending the broadcast area information list to the network side network element by activating an MBMS bearer request or session establishment request information.
  • the method further includes: detecting whether a geographical location area where the terminal is located changes; When it is detected that the geographical location area where the terminal is located changes, a session update process for updating the broadcast area is sent to the network side network element.
  • the detecting whether the geographical location area of the terminal is changed includes: determining, according to geographical location information in the V2X message sent by the terminal, whether the broadcast area list changes; when the broadcast area list is changed. And determining that the geographical location area where the terminal is located changes.
  • determining, according to at least one of the following, a broadcast area for performing broadcast transmission: a predefined area, a V2X service type, a risk level of a traffic accident corresponding to the V2X message, a reach of a traffic accident corresponding to the V2X message, and a location The authorization scope of the terminal and the geographical location information of the terminal.
  • a broadcast method of another car network communication V2X message is provided, which is applied to a base station side and/or a roadside unit device, comprising: receiving a V2X message; parsing the V2X message to obtain the V2X message a target broadcast cell; broadcasting the V2X message in the target broadcast cell.
  • receiving the V2X message includes: receiving the V2X message sent by the MBMS bearer.
  • parsing the V2X message to obtain the target broadcast cell of the V2X message includes: performing, by using an application layer that parses the V2X message, location information and/or service type information of the V2X message, and according to Said The geographic location information and/or the service type information obtains the target broadcast cell information; or, the IP header information of the V2X message is parsed, and the target broadcast cell information is obtained according to the IP header information.
  • the method before receiving the V2X message sent by the MBMS bearer, the method further includes: determining, by the MBMS bearer identifier, whether the bearer carries a V2X message, or determining, by using a TMGI corresponding to the MBMS bearer session, Whether the bearer carries a V2X message.
  • the target broadcast cell of the V2X message is obtained according to at least one of the following: a predefined area, a V2X service type, a risk level of a traffic accident corresponding to the V2X message, and a reach of a traffic accident corresponding to the V2X message. , the authorization scope of the terminal, and the geographical location information of the terminal.
  • a broadcast method of another car network communication V2X message is provided, which is applied to a terminal side, including: determining a target broadcast area according to geographical location information of a location of the terminal; and transmitting information of the target broadcast area To the network side device, wherein the target broadcast area is an area that broadcasts a V2X message.
  • a broadcast apparatus for a car-network communication V2X message comprising: a processing module configured to establish a multimedia broadcast multicast service MBMS bearer for broadcasting a car-networking communication V2X message, and to receive the a V2X message; an adjustment module, configured to adjust a broadcast area of the V2X message according to a location where the terminal that sends the V2X message is located and/or a location of a source cell that sends the V2X message to obtain a designated broadcast area; and send a module, set to And transmitting, by the MBMS bearer, the V2X message in the specified broadcast area.
  • another broadcast apparatus for a vehicle networking communication V2X message which is applied to a base station side and/or a roadside unit device, comprising: a receiving module configured to receive a V2X message; and a parsing module for Parsing the V2X message to obtain a target broadcast cell of the V2X message; and sending, configured to broadcast and transmit the V2X message in the target broadcast cell.
  • a broadcast apparatus for providing another vehicle networking communication V2X message is provided on the terminal side, including: a determining module, configured to determine a target broadcast area according to geographical location information of a location where the terminal is located; and a sending module, It is arranged to transmit information of the target broadcast area to the network side device, wherein the target broadcast area is an area for broadcasting a V2X message.
  • Another embodiment of the present invention provides a computer storage medium, where the computer storage medium stores execution instructions for performing one or a combination of the steps in the foregoing method embodiments.
  • an MBMS bearer for establishing a car-network communication V2X message is first established, a V2X message is received, and a broadcast area of the V2X message is adjusted according to a terminal location and/or a cell location to obtain a designated broadcast area, wherein the terminal The location is the location of the terminal that sends the V2X message, where the cell location is the location of the source cell that sends the V2X message, and finally the V2X message is broadcasted and sent in the specified broadcast area by using the MBMS bearer.
  • the location of the terminal of the V2X message and/or the location of the source cell that sends the V2X message adjusts the broadcast area of the V2X message to reduce the broadcast area of the V2X message, and solves the problem that the V2X message broadcast area is too large in the related art.
  • the utility model reduces the waste of wireless resources in the wireless air interface during broadcasting in the related art, and also saves the power consumption of the V2X message broadcast message receiving terminal.
  • FIG. 1 is a schematic diagram of a scenario of a V2V service according to the related art of the present invention
  • FIG. 2 is a flowchart of a method of broadcasting a car network communication V2X message according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for establishing an MBMS bearer according to an embodiment of the present invention
  • FIG. 4 is a flowchart of another method for establishing an MBMS bearer according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another method for broadcasting a car network communication V2X message according to an embodiment of the present invention.
  • Figure 6 is a flow chart of an alternative embodiment 1 of the present invention.
  • FIG 8 is a flow chart of an alternative embodiment 2 in accordance with the present invention.
  • FIG. 2 is a broadcast of a car network communication V2X message according to an embodiment of the present invention.
  • a flow chart of the method, as shown in FIG. 2, the process includes the following steps:
  • Step S202 establishing an MBMS bearer for broadcasting a car network communication V2X message
  • Step S204 Receive a V2X message, and adjust a broadcast area of the V2X message according to the terminal location and/or the cell location to obtain a designated broadcast area, where the terminal location is a location where the terminal transmitting the V2X message is located, and the cell location is a source cell that sends the V2X message. s position;
  • Step S206 broadcasting and transmitting a V2X message in the designated broadcast area by using the MBMS bearer.
  • the MBMS bearer for establishing the car networking communication V2X message is first established, the V2X message is received, and the broadcast area of the V2X message is adjusted according to the terminal location and/or the cell location to obtain the designated broadcast area, wherein the terminal The location is the location of the terminal that sends the V2X message, where the cell location is the location of the source cell that sends the V2X message, and finally the V2X message is broadcasted and sent in the specified broadcast area by using the MBMS bearer.
  • the location of the terminal of the V2X message and/or the location of the source cell that sent the V2X message adjusts the broadcast of the V2X message
  • the area is used to reduce the broadcast area of the V2X message, which solves the problem that the V2X message broadcast area is too large in the related art, reduces the waste of the wireless resources in the wireless air interface during the broadcast in the related art, and saves the V2X message broadcast message reception.
  • the power consumption of the terminal is used to reduce the broadcast area of the V2X message, which solves the problem that the V2X message broadcast area is too large in the related art, reduces the waste of the wireless resources in the wireless air interface during the broadcast in the related art, and saves the V2X message broadcast message reception.
  • an MBMS bearer for broadcasting a V2X message is established, and the MBMS bearer corresponds to a broadcast area and a TMGI.
  • the V2X message is sent through the MBMS bearer broadcast.
  • the broadcast area of the V2X information transmitted through the MBMS bearer is included in the broadcast area corresponding to the MBMS bearer.
  • the network side dynamically adjusts the broadcast area according to the location of the UE that sends the V2X message and/or the source cell that sends the V2X message.
  • the source cell is a cell to which the terminal that sends the V2X message is currently connected.
  • establishing an MBMS bearer for broadcasting the V2X message includes:
  • the MBMS GW After receiving the session initiation request message from the BM-SC, the MBMS GW sends a session initiation response message to the BM-SC, assigns an IP multicast address and a C-TEID to each cell, and multicasts the IP through the session initiation request message.
  • the address and C-TEID are sent to the Mobile Management Entity (MME).
  • MME Mobile Management Entity
  • the cell may send the allocated IP multicast address and C-TEID information to the neighboring cell through the X2 interface.
  • the cell determines whether it needs to join the IP multicast group, or the MBMS GW receives the session start request message from the BM-SC. Afterwards, the session initiation response message is sent to the BM-SC, and an IP multicast address and a C-TEID are allocated to each cell and the neighboring cell of the cell, and the IP multicast address and the C-TEID are sent through the session initiation request message.
  • the neighboring cells may include both directly adjacent and indirectly adjacent cells, and the indirect neighbors are adjacent to the cell through the intermediate zone, and the intermediate zone is directly adjacent to the cell.
  • the establishing the MBMS bearer includes: when the MBMS GW creates the MBMS bearer context, the IP multicast address is no longer allocated, and the eNB sends the IP address and the C-TEID for receiving the MBMS session in the MBMS session start response message, optionally. Different C-TEIDs can be assigned in different cells.
  • the MBMS GW obtains the IP address and TEID of each eNB or each cell for each TMGI.
  • sending the V2X message by using the established MBMS bearer broadcast includes: when the BM-SC sends the V2X data packet to the MBMS-GW, carrying the source cell information, and after receiving the V2X message, the MBMS GW passes the message corresponding to the source.
  • the IP multicast address of the cell and the C-TEID are multicast, and the source cell and the neighboring cell joining the multicast group can receive the MBMS data from the source cell.
  • the source cell is a cell to which the terminal that sends the V2X message is currently connected.
  • the target cell list information is carried, and the MBMS GW sends the MBMS data to the corresponding base station/cell in a unicast manner.
  • a broadcast device for a car-network communication V2X message is provided.
  • the device can be used independently or on other devices, such as an MBMS GW.
  • the device includes:
  • a processing module configured to establish a MBMS bearer for a multimedia broadcast multicast service for broadcasting a car networking communication V2X message, And receiving the V2X message;
  • the adjusting module is configured to adjust a broadcast area of the V2X message according to a location where the terminal that sends the V2X message is located and/or a location of a source cell that sends the V2X message to obtain a designated broadcast area;
  • a sending module configured to broadcast and send the V2X message in the designated broadcast area by using the MBMS bearer.
  • the method in the foregoing method embodiment may also be disposed in a broadcast device of the car network communication V2X message of the present application in a unit or a sub-module, and implement the same function.
  • FIG. 3 is a flowchart of a method for establishing an MBMS bearer according to an embodiment of the present invention, such as As shown in Figure 3, the process includes the following steps:
  • Step S302 establishing one or more MBMS bearers in units of cells/cell groups
  • Step S304 assigning a temporary mobile group identifier TMGI and a broadcast area to each MBMS bearer session;
  • Step S306 sending an activated MBMS bearer request or a session establishment request to the network side network element;
  • the MBMS bearer is used for the network side network element to broadcast and send the V2X message.
  • the V2X server and/or the BM-SC establishes an MBMS bearer session in units of cells or cell groups, and allocates one TMGI and one broadcast area for each MBMS session.
  • the network side sends a V2X message through the MBMS bearer broadcast.
  • the V2X server and/or the BM-SC may establish one or more MBMS bearer sessions in units of cells or cell groups according to different V2X service types.
  • the V2X server and/or the BM-SC establishes an MBMS bearer session in units of cells or cell groups, and allocating one broadcast area for each MBMS session further includes: the broadcast area of the MBMS session is the source cell and all phases of the cell Neighboring cell.
  • the source cell is a cell to which the terminal that sends the V2X message is currently connected; or the broadcast area of the MBMS session is a base station or a cell.
  • the two sessions may be assigned the same TMGI.
  • the V2X server when the V2X receives the V2X data of the UE from the cell for the first time, the V2X server sends an activated MBMS bearer request message to the BM-SC, where the bearer request information includes the MBMS broadcast area.
  • the network side sends the V2X message by using the MBMS bearer broadcast, including:
  • the V2X server may also receive the session establishment response information to confirm that the peer network element completes the bearer establishment, and then performs the process of transmitting the V2X message, and then sends the V2X message to the BM-SC, the V2X server or
  • the BM-SC identifies which MBMS bearer the data packet corresponds to, and delivers the corresponding bearer to the IP broadcast transmission; or, after receiving the V2X message, the V2X server determines that the target broadcast cell is one or more cells, and thereafter, V2X service
  • the BM-SC identifies the MBMS bearer corresponding to one or more cells, and delivers the V2X message data packet to the corresponding one or more bearers for broadcast transmission.
  • the basis includes: an area specified by the national policy; a V2X service type; a severity of the traffic accident corresponding to the V2X information; and an authorized range/location of the UE.
  • This embodiment provides an apparatus for establishing an MBMS bearer, which is used to implement a corresponding function of the foregoing MBMS bearer establishment method.
  • FIG. 4 is a method for establishing another MBMS bearer according to an embodiment of the present invention.
  • the flow chart, as shown in FIG. 4, includes the following steps:
  • Step S402 establishing one or more MBMS bearers in units of terminals
  • Step S404 assigning a temporary mobile group identifier TMGI and a broadcast area to each MBMS bearer session;
  • Step S406 the MBMS bearer activation request or the session establishment request is sent to the network side network element.
  • the MBMS bearer is used for the network side network element to broadcast and send the V2X message.
  • the V2X server and/or the BM-SC establishes an MBMS bearer in units of UEs, and allocates one TMGI and one broadcast area for each MBMS session.
  • the network side sends a V2X message through the MBMS bearer broadcast.
  • the V2X server when the V2X server receives the V2X data from a certain UE for the first time, the V2X server sends an activated MBMS bearer request message to the BM-SC, and the V2X server or the BM-SC determines the broadcast according to the geographical location information in the V2X message.
  • the area information list is sent to the MBMS GW through the session establishment request information.
  • the V2X server or the BM-SC determines that the broadcast message list changes according to the geographical location information in the V2X message, and the BM-SC may initiate a session update process to update the broadcast area.
  • the V2X server or the BM-SC determines, according to the geographical location information in the V2X message, the basis of the broadcast message list, including: a broadcast area specified by a national or regional policy; a V2X service type; a severity of a traffic accident corresponding to the V2X information; The scope of the attack; the authorized scope/location of the UE.
  • This embodiment provides an apparatus for establishing an MBMS bearer, which is used to implement a corresponding function of the foregoing MBMS bearer establishment method.
  • FIG. 5 is a flowchart of another method for broadcasting a car network communication V2X message according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps:
  • Step S502 receiving a V2X message
  • Step S504 parsing the V2X message to obtain a target broadcast cell of the V2X message
  • Step S506 broadcasting and transmitting a V2X message in the target broadcast cell.
  • the base station determines whether the message is a V2X message, if not a V2X message, broadcasts, and if it is a V2X message, further parses the application layer message according to the location included in the message. The information determines whether broadcasts are needed and in which cells need to be broadcast. If a cell needs to be broadcasted in the cell under the base station, the base station sends an MBMS message through the air interface.
  • the V2X message can be broadcasted through the air interface.
  • determining whether the message is a V2X message includes: determining whether the bearer carries the V2X message by using the MBMS bearer identifier; or determining whether the bearer carries the V2X message by using the TMGI corresponding to the MBMS bearer session;
  • determining, according to the location information included in the message, whether the broadcast is needed and the basis for broadcasting in the cell include: the area specified by the national policy, the V2X service type, the severity of the traffic accident corresponding to the V2X information, and the scope of the traffic accident, The authorized scope/location of the UE.
  • another broadcast device for the vehicle networking communication V2X message is provided, and the device can be used independently or on other devices, such as an application on a cell base station, or a roadside unit device, optionally, a road.
  • the edge unit device also includes a bypass base station and a bypass terminal, the device comprising:
  • a receiving module configured to receive a V2X message
  • a parsing module configured to parse the V2X message to obtain a target broadcast cell of the V2X message
  • the sending module is configured to broadcast and send a V2X message in the target broadcast cell.
  • the method in the foregoing method embodiment may also be disposed in a broadcast device of the car network communication V2X message of the present application in a unit or a sub-module, and implement the same function.
  • Another method for broadcasting a car network communication V2X message is provided in the embodiment, which is applied to the terminal side, and includes the following steps:
  • Step S602 determining a target broadcast area according to geographical location information of a location where the terminal is located;
  • Step S604 the information of the target broadcast area is sent to the network side device, where the target broadcast area is an area for broadcasting a V2X message.
  • the embodiment also provides a broadcast device for the vehicle networking communication V2X message, which is applied to the terminal side, and includes:
  • Determining a module configured to determine a target broadcast area according to geographical location information of the location of the terminal
  • a sending module configured to send information of the target broadcast area to the network side device, where the target broadcast area is an area for broadcasting a V2X message.
  • the broadcast mechanism can be flexibly and dynamically configured as compared with the related art, thereby avoiding the possibility of messages. Broadcasting in an excessive area results in a large waste of radio resources in the wireless air interface and a problem that a large number of UEs are forced to receive data packets unrelated thereto, thereby saving power consumption of the receiving UE.
  • the terminal A can send the V2X message to the serving base station through the uplink cellular network, and then send the message to the V2X server, and the V2X server passes the MBMS mechanism.
  • the V2X message broadcast is sent down.
  • the network side needs to establish an MBMS bearer first, and then send a V2X message through the established MBMS bearer broadcast.
  • the UE is a terminal, and the E-UTRAN and the UTRAN are respectively a Global Mobile Telecommunication System Radio Access Network (UTRAN), an evolved UTRAN (Evolved UTRAN, E-UTRAN for short), and an MME.
  • /SGSN is a mobility management entity, Serving GPRS Supporting Node (SGSN).
  • Figure 6 is a flow chart of an alternative embodiment 1 of the present invention, as shown in Figure 6, comprising:
  • Step S60 (not shown in FIG. 6):
  • the V2X server wants to activate an MBMS bearer
  • the V2X server sends an activated MBMS bearer request message to the BM-SC, and activates the MBMS bearer request information, including but not limited to TMGI, service. Quality of Service (QoS), MBMS broadcast area and start time.
  • TMGI is optional.
  • the MBMS broadcast area parameter includes an MBMS service area id list and/or a cell id list.
  • the V2X server may activate an MBMS bearer before, or may activate the V2X message that needs to be transmitted through the MBMS bearer for the first time.
  • Step S61 The BM-SC sends a session start request message to the MBMS GW, and the BM-SC carries the broadcast area information in the MBMS session start request message.
  • Step S62 The MBMS GW sends a session initiation response message to the BM-SC, a Session Start Response;
  • Step S63 The MBMS GW creates an MBMS bearer context, assigns an IP multicast address and a C-TEID to each cell or cell group in the broadcast area, and then includes a session start request information Session including the IP multicast address and the C-TEID information.
  • the Start Request is sent to the MME.
  • FIG. 7 is a signaling flowchart of information exchange between base stations according to an optional embodiment of the present invention. As shown in FIG. 7, a cell may send an assigned IP address and C-TEID information to an adjacent cell through an X2 interface.
  • the cell After receiving the allocated IP address and C-TEID information sent by the neighboring cell, the cell determines whether it needs to join the IP multicast group; or the MBMS GW creates an MBMS bearer context, and divides the cell in the broadcast area into multiple cells. Groups, cells of different cell groups may overlap. Then, each cell group is assigned an IP multicast address and a C-TEID, and the session initiation request information including the IP multicast address and the C-TEID information is sent to the MME.
  • Step S64 After receiving the information, the MME creates an MBMS bearer context, and sends a session start to the MCE/eNB. Ask for the information Session Start Request. And including the IP multicast address and the C-TEID of the cell in the session initiation request information. If the cell is in multiple cell groups, multiple IP multicast addresses and C-TEIDs may be assigned.
  • Step S65 The base station/MCE sends a session initiation response message Session Start Response to the MME.
  • Step S66 The MME sends a session initiation response message Session Start Response to the MBMS GW.
  • Step S67 The base station sends a session initiation information RAN Resource Setup to the terminal;
  • Step S68 The base station joins the IP multicast group IP Multicast Join to receive the MBMS user plane data.
  • the V2X server or the BM-SC After the network side establishes the MBMS bearer, when the V2X server or the BM-SC receives the V2X message data packet, and then sends the data packet to the MBMS-GW, it also carries the source cell information, and after receiving the V2X message, the MBMS GW will The message is corresponding to the IP multicast address of the source cell and the C-TEID for multicast transmission. Then, the source cell and the neighboring cell that joins the multicast group can receive the MBMS data of the local area.
  • FIG. 8 is a flowchart of an alternative embodiment 2 of the present invention. As shown in FIG. 8, this embodiment is similar to the alternative embodiment 1, and the differences are as follows:
  • the differences in the bearer establishment process include:
  • step S73 the MBMS GW no longer allocates an IP multicast address when creating an MBMS bearer context.
  • the base station transmits an IP address for a certain MBMS session reception and a C-TEID in the MBMS Session Initiation Response message (a different C-TEID may be considered for different cell allocations).
  • the MBMS GW obtains the IP address and TEID of each eNB or each cell for each TMGI.
  • the V2X server or the BM-SC After the bearer is established, when the V2X server or the BM-SC receives the V2X message data packet, and then sends the data packet to the MBMS-GW, it also carries the target cell information, and after the MBMS GW receives the V2X message, the obtained MB2 GW obtains the V2X message.
  • the IP address and the C-TEID information are sent to the corresponding target base station/cell in a unicast manner.
  • the V2X server and/or the BM-SC establishes an MBMS bearer session in units of cells, and allocates one TMGI and one broadcast area for each MBMS session. After that, the network side sends a V2X message through the MBMS bearer broadcast.
  • the V2X server and/or the BM-SC establishes an MBMS bearer session in units of cells, including the following steps:
  • Step S81 When the V2X server wants to activate an MBMS bearer, the V2X server sends an activated MBMS bearer request message to the BM-SC.
  • Step S82 The BM-SC sends a session initiation request message to the MBMS GW, and the BM-SC carries the broadcast area in the MBMS session initiation request message.
  • the V2X server and/or the BM-SC may establish one or more MBMS bearer sessions in units of cells or cell sets according to different V2X service types.
  • the broadcast area of the MBMS session is the source cell and all neighboring cells of the cell.
  • the two sessions may be assigned the same TMGI.
  • Step S83 After the MBMS GW sends a session initiation response message to the BM-SC, the MBMS bearer context is created, and the IP multicast address and the C-TEID are allocated, and then (TMGI, Flow Identifier, QoS, MBMS service Area, list of cell IDs if The information of the available, Session identifier, estimated session duration, transport network IP Multicast Address (es), IP address (es) of the multicast source, C-TEID, ...) is sent to the MME.
  • TMGI Flow Identifier
  • QoS Quality of Service
  • MBMS service Area list of cell IDs if The information of the available, Session identifier, estimated session duration, transport network IP Multicast Address (es), IP address (es) of the multicast source, C-TEID, .
  • Step S84 After receiving the information, the MME creates an MBMS bearer context, and sends session initiation request information to the MCE/eNB.
  • Step S85 The base station sends a session initiation response message to the MCE/MME.
  • Step S86 The base station sends session initiation information to the terminal.
  • Step S87 The base station joins the IP multicast group to receive the MBMS user plane data.
  • Step S88 The base station sends the MBMS data through the air interface.
  • the network side sends the V2X message through the MBMS bearer broadcast, including:
  • the V2X server After receiving the V2X message data packet, the V2X server sends the V2X message data packet to the BM-SC, and the V2X server or the BM-SC identifies which source cell the data packet comes from, thereby determining which MBMS bearer corresponds to and delivering the corresponding bearer to the IP broadcast transmission. Or, after receiving the V2X message data packet, the V2X server sends the V2X message data packet to the BM-SC, and the V2X server or the BM-SC determines the broadcast range according to the geographical location information in the V2X data packet, and further determines which MBMS bearer corresponds to And delivered to the corresponding bearer for IP broadcast transmission.
  • the basis includes: a national policy; a V2X service type; a severity of the traffic accident corresponding to the V2X information; and an authorized range/location of the UE.
  • the differences in the bearer establishment process include:
  • the V2X server and/or the BM-SC may establish one or more MBMS bearer sessions in units of cells according to different V2X service types.
  • the broadcast area of the MBMS session is a base station or a cell.
  • MBMS session V2X servers and/or BM-SCs with different broadcast areas can be for them Assign the same TMGI.
  • the network side sends the V2X message through the MBMS bearer broadcast, including:
  • the V2X server After receiving the V2X message, the V2X server determines that the target target broadcast cell is one or more cells, and then the V2X server or the BM-SC identifies the MBMS bearer corresponding to one or more cells, and delivers the V2X message data packet to the corresponding One or more bearers are broadcasted.
  • the basis includes: a national policy; a V2X service type; a severity of the traffic accident corresponding to the V2X information; and an authorized range/location of the UE.
  • the V2X server and/or the BM-SC establishes an MBMS bearer in units of UEs, and allocates one TMGI and one broadcast area for each MBMS session.
  • One or more MBMS sessions may be established in units of UEs according to different types of V2X services.
  • the V2X message is sent for the first time and transmitted to the V2X server through the cellular network.
  • Step S101 When the V2X server receives the V2X data from the vehicle B for the first time, the V2X server sends an activated MBMS bearer request information to the BM-SC;
  • Step S102 The V2X server or the BM-SC determines the broadcast area information list according to the geographical location information in the V2X message, and sends the broadcast area information list to the MBMS GW through the session establishment request information.
  • the basis for judging which areas to broadcast includes: national policy; V2X service type; the severity and scope of traffic accidents corresponding to V2X information; the authorized scope/geographical location of the UE.
  • Step S103 After the MBMS GW sends the session initiation response message to the BM-SC, the MBMS bearer context is created, the IP multicast address and the C-TEID are allocated, and the session initiation request information is sent to the MME.
  • Step S104 After receiving the information, the MME creates an MBMS bearer context, and sends session initiation request information to the MCE/eNB.
  • Step S105 The base station sends a session initiation response message to the MCE/MME.
  • Step S106 The base station sends session initiation information to the terminal.
  • Step S107 The base station joins the IP multicast group to receive the MBMS user plane data.
  • Step S108 The base station sends the MBMS data through the air interface.
  • the V2X server or the BM-SC determines that the broadcast message list has changed according to the geographical location information in the V2X message, and the BM-SC may initiate a session update process to update the broadcast area.
  • the network side sends a V2X message through the MBMS bearer broadcast.
  • the V2X server receives the V2X data from the vehicle B, it determines the MBMS bearer corresponding to the vehicle B, and sets the V2X message packet. Delivered to the corresponding bearer for broadcast transmission.
  • the process of bearer establishment in this embodiment is similar to the prior art or the above embodiment, and the difference lies in the transmission of user plane data.
  • the base station determines whether the message is a V2X message, and if it is a V2X message, further parses the application layer message, determines whether the broadcast needs to be performed according to the location information included in the message, and needs In which cells are broadcast. If a cell needs to be broadcasted in the cell under the base station, the base station sends an MBMS message through the air interface.
  • determining whether the message is a V2X message includes: determining whether the bearer carries the V2X message by using the MBMS bearer identifier; or determining whether the bearer carries the V2X message by using the TMGI corresponding to the MBMS bearer session.
  • determining, according to the location information included in the message, whether the broadcast is required and the basis for broadcasting in the cell include: a national policy; a V2X service type; a severity of the traffic accident corresponding to the V2X information; and a range of the UE; Authorized scope / geographic location.
  • the process of bearer establishment in this embodiment is similar to the prior art or the above embodiment, and the difference lies in the transmission of user plane data.
  • the base station determines whether the message is a V2X message, and if it is a V2X message, further parses the application layer message, determines whether the broadcast needs to be performed according to the location information included in the message, and needs In which cells are broadcast. If a cell needs to be broadcasted in the cell under the base station, the base station sends an MBMS message through the air interface.
  • the base station After receiving the data message sent by the terminal, the base station determines whether the message is a V2X message. If it is not a V2X message, it sends the message to the upper layer network element. If it is a V2X message, the V2X message is parsed to obtain the target broadcast cell of the V2X message, including the following. Two ways:
  • the IP header information of the V2X message is parsed, and the target broadcast cell information is obtained according to the IP header information.
  • determining, according to the location information included in the message, whether the broadcast is required and the basis for broadcasting in the cell include: a national policy; a V2X service type; a severity of the traffic accident corresponding to the V2X information; and a range of the UE; Authorized scope / geographic location.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the broadcast area of the V2X message is adjusted according to the location of the terminal that sends the V2X message and/or the location of the source cell that sends the V2X message to obtain the designated broadcast area.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the processor performs an MBMS bearer for establishing a car networking communication V2X message according to the stored program code in the storage medium, and receives the V2X message;
  • the processor performs, according to the stored program code in the storage medium, the broadcast area of the V2X message according to the location of the terminal that sends the V2X message and/or the location of the source cell that sends the V2X message. Broadcast area
  • the processor performs broadcast transmission of the V2X message in the designated broadcast area by using the MBMS bearer according to the stored program code in the storage medium.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the method and device for broadcasting a car network communication V2X message and the method for establishing an MBMS bearer have the following beneficial effects: solving the problem of solving the problem that the V2X message broadcast area is too large in the related art, and reducing the problem.
  • the waste of radio resources in the wireless air interface during broadcasting also saves the power consumption of the V2X message broadcast message receiving terminal.

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Abstract

L'invention concerne un procédé et un dispositif pour diffuser un message de communication véhicule-tout (V2X) et un procédé pour établir une porteuse de service de diffusion/multidiffusion multimédia (MBMS). Le procédé consiste à : établir une porteuse de service de diffusion/multidiffusion multimédia (MBMS) pour diffuser un message de communication véhicule-tout (V2X) ; recevoir le message V2X, et régler, selon un emplacement de terminal et/ou un emplacement de cellule, une zone de diffusion pour le message V2X pour obtenir une zone de diffusion spécifiée, l'emplacement de terminal étant un emplacement où un terminal transmettant le message V2X est situé, et l'emplacement de cellule étant un emplacement où une cellule source transmettant le message V2X est située ; et diffuser et transmettre, au moyen de la porteuse MBMS, le message V2X dans la zone de diffusion spécifiée. L'invention résout un problème dans l'état antérieur de la technique dans lequel une zone de diffusion de message V2X est excessivement grande, permettant ainsi de réduire le gaspillage d'une ressource radio d'une interface radio sans fil lors d'une diffusion, et de réduire la consommation d'énergie d'un terminal recevant des messages V2X diffusés.
PCT/CN2017/072661 2016-02-04 2017-01-25 Procédé et dispositif pour diffuser un message de communication véhicule-tout (v2x) et procédé pour établir une porteuse mbms Ceased WO2017133624A1 (fr)

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CN105282257A (zh) * 2015-11-05 2016-01-27 东莞酷派软件技术有限公司 用于车辆通信的数据传输方法及装置、终端和路侧单元

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CN110278607A (zh) * 2018-03-13 2019-09-24 中兴通讯股份有限公司 一种资源确定方法、装置和计算机可读存储介质
WO2020063322A1 (fr) * 2018-09-28 2020-04-02 Qualcomm Incorporated Approche initiée par un véhicule pour rejoindre un groupe
CN112740294A (zh) * 2018-09-28 2021-04-30 高通股份有限公司 用于加入组的经车辆发起的方法
US12047934B2 (en) 2018-09-28 2024-07-23 Qualcomm Incorporated Vehicle-initiated approach to joining a group
CN112887106A (zh) * 2018-09-30 2021-06-01 Oppo广东移动通信有限公司 一种通信方法及装置、通信设备
CN114125956A (zh) * 2020-08-31 2022-03-01 上海朗帛通信技术有限公司 一种被用于无线通信的方法和设备

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