CN107040995A

CN107040995A - Broadcasting method and device, the method for building up of MBMS carryings of car networking communication V2X message

Info

Publication number: CN107040995A
Application number: CN201610079776.6A
Authority: CN
Inventors: 罗薇; 陈琳; 马子江; 吴蕴璐
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-02-04
Filing date: 2016-02-04
Publication date: 2017-08-11
Also published as: WO2017133624A1

Abstract

The invention provides a kind of broadcasting method of car networking communication V2X message and device, the method for building up of MBMS carryings, wherein, including：Set up the multimedia broadcast multi-broadcasting business MBMS carryings for radio diffusion van connected network communication V2X message；Receive V2X message, and obtain specifying broadcast area according to the broadcast area of terminal location and/or the subdistrict position adjustment V2X message, wherein, the position where terminal of the terminal location to send the V2X message, the subdistrict position is the position for the cell-of-origin for sending the V2X message；V2X message described in broadcast transmission in the specified broadcast area is carried on by the MBMS.By the present invention, solve solution correlation technique in V2X message broadcast areas it is excessive the problem of, reduce in correlation technique broadcast when radio open in Radio Resource waste, also save the power consumption of V2X message broadcast message reception terminals.

Description

Broadcasting method and device, the method for building up of MBMS carryings of car networking communication V2X message

Technical field

The present invention relates to the communications field, in particular to a kind of car networking communicate V2X message broadcasting method and device, The method for building up of MBMS carryings.

Background technology

Car networking communication V2X (Vehicle-to-Everything Communications, referred to as V2X) refers to by being loaded in Sensor, car-mounted terminal and electronic tag on vehicle provide information of vehicles, realize that car communicates with car using the various communication technologys (Vehicle-to-Vehicle Communication, abbreviation V2V), car communicate (Vehicle-to-Pedestrian with people Communications, referred to as V2P), car communicates (Vehicle-to-Infrastructure with network infrastructure Communications, referred to as V2I), car and network (Vehicle-to-Network Communications, referred to as V2I) Communication, and the effectively utilization such as extracted on information network platform, share to information, the management and control effective to vehicle progress and is carried For integrated service.

In correlation technique, 3GPP has the V2X based on LTE.According to current 3GPP definition, V2X business is that one kind has and made The communication service transmitted by 3GPP that the transmission or reception UE applied with V2V are participated in.Based on the opposing party for participating in communication, V2X business can be further divided into V2V business, V2I business, V2P business and V2N business.V2P business refer to UE it Between use V2P application communications business.V2I business refers to that UE and roadside unit (Road Side Unit, abbreviation RSU) are used The business that V2I applications are interacted.RSU is the entity for supporting V2I business, can send V2I business and be applied to using V2I UE, can also from using V2I business UE receive V2I business.RSU can be by base station (eNB) or static UE is realized.If RSU is realized by base station, i.e., referred to as eNB type RSU.If RSU is realized by UE, It is referred to as UE type RSU.

3GPP in correlation technique discusses V2V three kinds of scenes, wherein, E-UTRAN is LTE access networks, i.e. evolution Global system for mobile communications wireless access network (Evolved Universal Mobile Telecommunication System Radio Access Network, referred to as E-UTRAN), bypass connection SL (side link), descending connection DL (down link), Up connection UL (up link), Fig. 1 is the schematic diagram of a scenario according to V2V business in correlation technique of the present invention, as shown in Figure 1： Scene 1, the scene is supported to be based only on the V2V communications of PC5 interfaces.UE sends V2X message to part by PC5 interfaces Multiple UE in region；Scene 2, the scene is supported to be based only on Uu mouthfuls of V2V communications.UE uplink V2X message is arrived The V2X message downstreams are broadcast to multiple UE of regional area by E-UTRAN, E-UTRAN again；Scene 3, the scene branch Hold and communicated using the V2V of Uu and PC5 interfaces.UE sends V2X message by PC5 interfaces and gives other UE, wherein, 3a： UE type RSU from PC5 interfaces to V2X message after by the V2X message uplink to E-UTRAN, E-UTRAN The V2X message downstreams received at UE type RSU are broadcast to multiple UE of regional area.3b：UE uplink V2X message to E-UTRAN, E-UTRAN received from Uu mouthfuls after V2X message by the V2X message be transferred to one or Multiple UE type RSU, UE the type RSU of person send the V2X message received at E-UTRAN by PC5 interfaces Multiple UE to regional area.

In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd Generation Partnership Project multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service are referred to as MBMS)) is proposed, The business is a kind of technology that data are transmitted from a data source to multiple destination mobile terminals, realizes network (including core net And access network) resource it is shared, improve the utilization rate of Internet resources (especially air interface resource).3GPP R13 it Preceding MBMS transmission pattern refer to using MBSFN patterns transmission (MBMS SFNs, MBMS single frame network), I.e.：Multiple cells send identical content identical at the time of.

In three kinds of scenes based on previously described V2V, E-UTRAN is required in scene 2 and scene 3 by under V2X message Row is broadcast to multiple UE of regional area, therefore, existing discussion think MBMS be it is a kind of it is best be used to broadcasting V2X disappear The mechanism of breath.

According to correlation technique, network side includes V2X AS, and (V2XApplication server, V2X application servers are also referred to as： AS (application server), V2X server (V2X servers), V2X Application layer (V2X application layers), V2X AS For the content provider of V2X business), BM-SC is (in Broadcast-Multicast-Service Centre, broadcasting/packet service The heart) and/or 3GPP core nets, and its RAN access network elements are (such as:eNB).Network side can be each V2X type of service All set up MBMS carrying, (MBMS radio access bearer, MBSM wirelessly connect one MBMS RAB of correspondence Enter carrying) and one specific TMGI (Temporary Mobile Group Identity, Temporary Mobile Group Identity) of distribution.V2X V2X business is divided into some V2X types of service by AS, and each V2X types of service correspond to a TMGI.BM-SC It is required for setting up single MBMS carryings for each TMGI, that is to say, that each V2X types of service are required for setting up Single MBMS carryings, i.e.,：The each V2X types of service correspondence one of TMGI correspondences one MBMS carryings.

If broadcasted using existing MBMS mechanism, then V2X message may be broadcasted to lead in excessive region Cause in radio open Radio Resource a large amount of wastes, also result in many Vehicle UE have received under compulsion it is unrelated with its V2X packets, so as to add Vehicle UE power consumption.For the above mentioned problem in correlation technique, not yet find at present Effective solution.

The content of the invention

The invention provides a kind of car networking communication V2X message broadcasting method and device, MBMS carrying method for building up, with At least solve the problem of V2X message broadcast areas are excessive in correlation technique.

The broadcasting method of V2X message according to an aspect of the invention, there is provided a kind of car networking communicates, including：Setting up is used for The multimedia broadcast multi-broadcasting business MBMS carryings of radio diffusion van connected network communication V2X message；V2X message is received, and according to terminal The broadcast area that position and/or subdistrict position adjust the V2X message obtains specifying broadcast area, wherein, the terminal location is The position where the terminal of the V2X message is sent, the subdistrict position is the position for the cell-of-origin for sending the V2X message； V2X message described in broadcast transmission in the specified broadcast area is carried on by the MBMS.

Further, after the MBMS bearer messages set up for transmission vehicle connected network communication V2X, methods described is also wrapped Include：Receive the session initiation request from broadcast/multicast service center BM-SC；For broadcast area each first community and / or second community one IP multicast address of distribution and cell Tunnel End Point Identifier C-TEID, wherein, the IP multicast address and institute Stating C-TEID is used to identify the address of the first community and/or second community, wherein, the second community and described first small Area is directly or indirectly adjacent；The IP multicast address and the C-TEID are issued by mobility pipe by session initiation request Manage entity (Mobile Management Entity, abbreviation MME).

Further, an IP multicast address and cell Tunnel End Point Identifier are being distributed for each first community of broadcast area After C-TEID, in addition to：First community in the broadcast area sends described the by X2 interface to the second community The allocated IP multicast address of one cell and C-TEID information；The second community receive the IP multicast address and Fed back after C-TEID information be used for be confirmed whether to add the response message of the broadcast area；

Further, before the MBMS carryings for radio diffusion van connected network communication V2X message are set up, methods described also includes： The MBMS session initiation response messages that the eNB is sent are received, wherein, taken in the MBMS session initiations response message Band is used for the IP address and C-TEID for receiving the MBMS sessions.

Further, when eNB administrations there are multiple cells, carried and each in the MBMS session initiations response message The corresponding IP address of cell.

Further, the cell-of-origin information for sending the V2X message is carried in the V2X message, wherein, the cell-of-origin The ID that information includes cell-of-origin is identified；V2X described in broadcast transmission in the specified broadcast area is carried on by the MBMS Message includes：The V2X message is sent to by way of MBMS carryings are with multicast corresponding with the cell-of-origin information Cell-of-origin and/or the cell adjacent with the cell-of-origin.

Further, being carried on V2X message described in broadcast transmission in the specified broadcast area by the MBMS includes：Connect The V2X message is received, and receives the target cell list information of the V2X message, wherein, the target cell list letter Breath includes the ID marks of Target cell；The V2X message is sent to and institute by way of MBMS carryings are with unicast State the corresponding cell of target cell information and/or base station.

According to another aspect of the present invention there is provided a kind of method for building up of MBMS carryings, including：Using cell/small district's groups to be single One or more MBMS carryings are set up in position；A Temporary Mobile Group Identity TMGI is distributed for each MBMS carryings session With a broadcast area；Activation MBMS carryings request or session establishment request are sent to network side element；Wherein, it is described MBMS is carried for the network side element broadcast transmission V2X message.

Further, it is described one or more MBMS carrying is set up in units of cell/small district's groups to include：According to the V2X The V2X types of service of message, set up one or more corresponding with the V2X types of service in units of cell/small district's groups MBMS is carried.

Further, the broadcast area includes：The cell-of-origin and the cell adjacent with the cell-of-origin.

Further, the broadcast area include base station overlay area or a cell.

Further, multiple MBMS carryings, and the broadcast of two of which MBMS carryings are set up in units of cell/small district's groups Between region in the absence of overlapping region when, be described two MBMS carrying distribution identical TMGI.

Further, one or more MBMS carrying is set up in units of cell/small district's groups include described：Judge what is received Whether the target broadcast area of V2X message is in the broadcast area set that existing MBMS is carried；If judged result is no, to net Network side network element sends activation MBMS carryings request or session establishment request, wherein, the activation MBMS carryings request or meeting Words set up solicited message and carry MBMS broadcast areas.

Further, it is sent to by activation MBMS carryings request or session establishment request after network side element, it is described Method also includes：The V2X message is received, and determines that MBMS corresponding with the target broadcast cell of the V2X message is held Carry；The V2X message diliveries are subjected to broadcast transmission to the specified MBMS carryings.

Further, determine to carry out the broadcast area of broadcast transmission according at least one of：Predefined region, V2X service class Type, the danger classes of the corresponding traffic accident of the V2X message, the corresponding traffic accident of the V2X message involve scope, The scope of authority of cell terminal, the geographical position of cell terminal.

According to another aspect of the present invention there is provided the method for building up of another MBMS carryings, including：Built in units of terminal Vertical one or more MBMS carryings；For each MBMS carrying session distribute a Temporary Mobile Group Identity TMGI and One broadcast area；MBMS bearing activations are asked or session establishment request is sent to network side element；Wherein, the MBMS Carry for the network side element broadcast transmission V2X message.

Further, MBMS carryings are set up in units of terminal to be included：According to the V2X of the V2X message in units of terminal Type of service sets up one or more MBMS carryings.

Further, one or more MBMS carryings are set up in units of terminal to be included：Judge whether the terminal is building In the terminal set of vertical MBMS carryings；Judged result for it is no when, and geographical location information in the V2X message sentences Break and broadcast zone information list；The broadcast zone information list is asked by activating MBMS carryings request or session establishment Information is sent to the network side element.

Further, it is sent to by the broadcast zone information list by activating MBMS carryings request or session establishment request After the network side element, methods described also includes：Whether the geographic location area where detecting the terminal changes； When the geographic location area where detecting the terminal changes, send described wide for updating to the network side element Broadcast the session updates process in region.

Further, the geographic location area where the detection terminal whether change including：Sent out according to the terminal Geographical location information in the V2X message sent judges whether broadcast area list changes；Occur in the broadcast area list During change, the geographic location area where determining the terminal changes.

Further, determine to carry out the broadcast area of broadcast transmission according at least one of：Predefined region, V2X service class Type, the danger classes of the corresponding traffic accident of the V2X message, the corresponding traffic accident of the V2X message involve scope, The geographical location information of the scope of authority of the terminal, the terminal.

The broadcasting method of V2X message according to an aspect of the invention, there is provided another car networking communicates, is applied in base station side And/or roadside unit equipment, including：Receive V2X message；Parse the V2X message obtain the V2X message target it is wide Broadcast cell；The V2X message described in broadcast transmission in the target broadcast cell.

Further, receiving V2X message includes：Receive and the V2X message sent is carried by MBMS.

Further, parsing the V2X message and obtaining the target broadcast cell of the V2X message includes one of in the following manner：Solution The application layer for analysing the V2X message obtains the geographical location information and/or traffic type information of the V2X message, and according to institute State geographical location information and/or traffic type information obtains the target broadcast cell information；Or, parse the V2X message IP headers, and the target broadcast cell information is obtained according to the IP headers.

Further, before the V2X message that transmission is carried by MBMS is received, methods described also includes：Pass through MBMS carryings mark carries the corresponding TMGI of session to judge whether the carrying carries V2X message, or, by MBMS To judge whether the carrying carries V2X message.

Further, the target broadcast cell of the V2X message is obtained according at least one of：Predefined region, V2X industry Service type, the danger classes of the corresponding traffic accident of the V2X message, the V2X message corresponding traffic accident involve model Enclose, the geographical location information of the scope of authority of terminal, terminal.

The broadcasting method of V2X message according to an aspect of the invention, there is provided another car networking communicates, is applied in end side, Including：Target broadcast area is determined according to the geographical location information of terminal position；The information of the target broadcast area is sent out Network side equipment is given, wherein, the target broadcast area is the region of broadcast V2X message.

A kind of broadcaster for the V2X message that communicated according to another aspect of the present invention there is provided car networking, including：Handle mould Block, the multimedia broadcast multi-broadcasting business MBMS for setting up for radio diffusion van connected network communication V2X message is carried, and receives institute State V2X message；Adjusting module, for according to the position where the terminal for sending the V2X message and/or the transmission V2X The broadcast area of V2X message described in the position adjustment of the cell-of-origin of message obtains specifying broadcast area；Sending module, for passing through The MBMS is carried on V2X message described in broadcast transmission in the specified broadcast area.

The broadcaster for the V2X message that communicated according to another aspect of the present invention there is provided another car networking, is applied in base station Side and/or roadside unit equipment, including：Receiving module, for receiving V2X message；Parsing module, for parsing the V2X Message obtains the target broadcast cell of the V2X message；Sending module, for the broadcast transmission institute in the target broadcast cell State V2X message.

The broadcaster for the V2X message that communicated according to another aspect of the present invention there is provided another car networking, is applied in terminal Side, including：Determining module, for determining target broadcast area according to the geographical location information of terminal position；Sending module, For the information of the target broadcast area to be sent into network side equipment, wherein, the target broadcast area disappears for broadcast V2X The region of breath.

By the present invention, using the MBMS carryings initially set up for radio diffusion van connected network communication V2X message, receive V2X and disappear Breath, and the broadcast area for adjusting the V2X message according to terminal location and/or subdistrict position obtains specified broadcast area, wherein, Position where terminal of the terminal location to send the V2X message, the subdistrict position is the transmission V2X message The position of cell-of-origin, V2X message described in broadcast transmission in the specified broadcast area is carried on finally by the MBMS, is led to The position crossed where the terminal of V2X message and/or send the V2X message cell-of-origin position adjustment V2X message broadcast Region, to reduce the broadcast area of the V2X message, solves the problem of V2X message broadcast area is excessive in correlation technique, The waste of the Radio Resource in radio open in broadcast is reduced in correlation technique, V2X message broadcast message reception is also saved whole The power consumption at end.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, of the invention shows Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the schematic diagram of a scenario according to V2V business in correlation technique of the present invention；

Fig. 2 is the flow chart of the broadcasting method of car networking communication V2X message according to embodiments of the present invention；

Fig. 3 is the flow chart of the method for building up of MBMS carryings according to embodiments of the present invention；

Fig. 4 is the flow chart of the method for building up of another MBMS carryings according to embodiments of the present invention；

Fig. 5 is the flow chart of the broadcasting method of another car networking communication V2X message according to embodiments of the present invention；

Fig. 6 is the flow chart according to alternative embodiment 1 of the present invention；

Fig. 7 is the signaling process figure of the base station information interaction according to alternative embodiment of the present invention；

Fig. 8 is the flow chart according to alternative embodiment 2 of the present invention.

Embodiment

Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the case where not conflicting, The feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing etc. is to use In distinguishing similar object, without for describing specific order or precedence.

A kind of broadcasting method of car networking communication V2X message is provided in the present embodiment, and this method can be applied in MBMS nets Close on (Gateway, referred to as GW), Fig. 2 is the broadcasting method of car networking communication V2X message according to embodiments of the present invention Flow chart, as shown in Fig. 2 the flow comprises the following steps：

Step S202, sets up the MBMS carryings for radio diffusion van connected network communication V2X message；

Step S204, receives V2X message, and the broadcast area for adjusting V2X message according to terminal location and/or subdistrict position is obtained To specified broadcast area, wherein, the position where terminal of the terminal location to send V2X message, subdistrict position is transmission V2X The position of the cell-of-origin of message；

Step S206, broadcast transmission V2X message in specified broadcast area is carried on by MBMS.

By above-mentioned steps, using the MBMS carryings initially set up for radio diffusion van connected network communication V2X message, V2X is received Message, and the broadcast area for adjusting the V2X message according to terminal location and/or subdistrict position obtains specified broadcast area, wherein, Position where terminal of the terminal location to send the V2X message, the subdistrict position is the transmission V2X message The position of cell-of-origin, V2X message described in broadcast transmission in the specified broadcast area is carried on finally by the MBMS, is led to The position crossed where the terminal of V2X message and/or send the V2X message cell-of-origin position adjustment V2X message broadcast Region, to reduce the broadcast area of the V2X message, solves the problem of V2X message broadcast area is excessive in correlation technique, The waste of the Radio Resource in radio open in broadcast is reduced in correlation technique, V2X message broadcast message reception is also saved whole The power consumption at end.

In the present embodiment, set up a MBMS for being used to broadcast V2X message to carry, MBMS carryings correspond to one wide Broadcast region and a TMGI.Broadcast transmission V2X message is carried by MBMS.The V2X of transmission is carried by MBMS The broadcast area of information is comprised among the corresponding broadcast area of MBMS carryings.Network side is according to the UE for sending V2X message Position and/or send V2X message cell-of-origin dynamically adjustment broadcast area.

Optionally, the cell that cell-of-origin currently connects for the terminal of transmission V2X message.

Optionally, setting up a MBMS carrying for being used to broadcast V2X message includes：

MBMS GW are received after the session initiation request from BM-SC, and sending session initiation response to BM-SC disappears Breath, is that each cell distributes an IP multicast address and C-TEID, and by session initiation request by IP multicast address and C-TEID issues mobility management entity (Mobile Management Entity, abbreviation MME)

Optionally, cell can be allocated by IP multicast address from X2 interface to the logical transmission in neighbor cell and C-TEID information.

Optionally, cell receives neighbor cell and sent after the IP multicast address being allocated and C-TEID information, it is determined whether need The IP multicast groups are added, or, MBMS GW are received after the session initiation request from BM-SC, to BM-SC Session initiation response message is sent, is each cell and one IP multicast address of neighbor cell allocation and C-TEID of the cell, And IP multicast address and C-TEID are issued by MME by session initiation request, in the present embodiment, neighbor cell can be with Include the cell of direct neighbor and indirect neighbor simultaneously, indirect neighbor is i.e. adjacent with the cell by intermediate region, the intermediate region It is and the cell direct neighbor.

Optionally, setting up MBMS carryings includes：MBMS GW do not reallocate IP multicasts when creating MBMS bearer contexts Address, eNB sent in MBMS session initiation response messages for some MBMS session receive IP address and C-TEID, optionally, can distribute different C-TEID in different cells.MBMS GW obtain each eNB or each Individual cell is used for each TMGI IP address and TEID.

Optionally, carrying broadcast transmission V2X message by the MBMS of foundation includes：When BM-SC sends V2X packets During to MBMS-GW, carry cell-of-origin information, MBMS GW are received after V2X message, by the message by corresponding to The IP multicast address and C-TEID of the cell-of-origin carry out multicast transmission, then, cell-of-origin and add the adjacent small of the multicast group Area can receive the MBMS data from cell-of-origin.Optionally, cell-of-origin currently connects to send the terminal of V2X message Cell.

Optionally, when BM-SC sends packet to MBMS-GW, target cell list information, MBMS GW are carried MBMS data is issued to corresponding base station/cell in the way of unicast.

A kind of broadcaster of car networking communication V2X message is provided in the present embodiment, and the device can be used independently can also It is arranged in other equipment, such as applies on MBMS GW, the device includes：

Processing module, the multimedia broadcast multi-broadcasting business MBMS for setting up for radio diffusion van connected network communication V2X message is carried, And receive the V2X message；

Adjusting module, for the source according to the position where the terminal for sending the V2X message and/or the transmission V2X message The broadcast area of V2X message described in the position adjustment of cell obtains specifying broadcast area；

Sending module, for being carried on V2X message described in broadcast transmission in the specified broadcast area by the MBMS.

Corresponding, the method in above method embodiment can also be arranged on the car connection of the application in the way of unit or submodule In the broadcaster of Network Communication V2X message, and realize identical function.

Additionally provide a kind of method for building up of MBMS carrying in the present embodiment, this method can apply V2X servers and/ Or on BM-SC, Fig. 3 is the flow chart of the method for building up of MBMS carryings according to embodiments of the present invention, as shown in figure 3, The flow comprises the following steps：

Step S302, sets up one or more MBMS carryings in units of cell/small district's groups；

Step S304, is that each MBMS carryings session distributes a Temporary Mobile Group Identity TMGI and a broadcast area；

Step S306, network side element is sent to by activation MBMS carryings request or session establishment request；

Wherein, MBMS is carried for network side element broadcast transmission V2X message.

In the present embodiment, V2X servers and/or BM-SC set up MBMS carrying sessions in units of cell or small district's groups, TMGI and broadcast area is distributed for each MBMS sessions.Network side carries broadcast transmission V2X by MBMS Message.

Optionally, V2X servers and/or BM-SC can be according to the different using cell or small district's groups to be single of V2X types of service One or more MBMS carrying sessions are set up in position.

Optionally, V2X servers and/or BM-SC set up MBMS carrying sessions in units of cell or small district's groups, are every Individual MBMS sessions, which distribute a broadcast area, also to be included：The broadcast area of MBMS sessions is all of cell-of-origin and the cell Neighbor cell.The cell that cell-of-origin currently connects for the terminal of transmission V2X message；Or, the broadcast area of MBMS sessions is One base station or a cell.

Optionally, when overlapping region is not present between the broadcast area of two MBMS sessions, the two sessions can divide With identical TMGI.

Optionally, when V2X receives the V2X data of the UE from some cell first, V2X servers send one MBMS carrying solicited messages are activated to BM-SC, carrying solicited message includes MBMS broadcast areas.

Optionally, network side carries broadcast transmission V2X message by MBMS and included：

V2X servers are received after V2X message packets, optionally, in addition it is also necessary to receive session establishment response message, confirmation pair Hold network element to complete after carrying foundation, then perform the flow of transmission V2X message, be then forwarded to BM-SC, V2X servers or BM-SC Differentiate which MBMS carrying the packet corresponds to, and be delivered to corresponding carrying and carry out IP broadcast transmission；Or, work as V2X Server is received after V2X message, judges the message target broadcast cell for one or more cell, hereafter, V2X services Device or BM-SC identify the corresponding MBMS carryings of one or more cell, V2X message packets are delivered to corresponding One or more carrying carries out broadcast transmission.

Optionally, when V2X servers judge that the foundation broadcasted in which region includes：Region as defined in national policy；V2X Type of service；The order of severity of the corresponding traffic accident of V2X information and involve scope；The UE scope of authority/geographical position.

Present embodiments provide a kind of MBMS carryings sets up device, for realizing the method for building up that above-mentioned MBMS is carried Corresponding function.

Additionally provide the method for building up of another MBMS carrying in the present embodiment, this method can apply in V2X servers and / or BM-SC on, Fig. 4 is the flow chart of the method for building up of another MBMS carryings according to embodiments of the present invention, such as Fig. 4 Shown, the flow comprises the following steps：

Step S402, sets up one or more MBMS carryings in units of terminal；

Step S404, is that each MBMS carryings session distributes a Temporary Mobile Group Identity TMGI and a broadcast area；

Step S406, MBMS bearing activations are asked or session establishment request is sent to network side element；

In the present embodiment, V2X servers and/or BM-SC set up MBMS carryings in units of UE, are each MBMS Session distributes TMGI and broadcast area.Network side carries broadcast transmission V2X message by MBMS.

Optionally, it is considered to which one or more MBMS session is set up in units of UE according to the difference of V2X types of service.

Optionally, when V2X servers receive the V2X data from some UE first, V2X servers send one Activate MBMS and carry solicited message to BM-SC, the geographical position of V2X servers or BM-SC in V2X message Information judges broadcast zone information list, and the broadcast zone information list is sent to by session establishment solicited message MBMS GW。

Optionally, when UE switches or is moved to other regions, V2X servers or BM-SC disappear according to V2X Geographical location information in breath judges that broadcast message list changes, then BM-SC can initiate the renewal broadcast of session updates process Region.

Optionally, the geographical location information of V2X servers or BM-SC in V2X message judges the list that broadcasts the message Foundation include：Broadcast area as defined in country or Zone-Policy；V2X types of service；The corresponding traffic accident of V2X information The order of severity and involve scope；The UE scope of authority/geographical position.

In the present embodiment provide another car networking communicate V2X message broadcasting method, this method can apply base station and/ Or roadside unit equipment, optionally, roadside unit equipment include but is not limited to be：The base station of bypass, the terminal of bypass, Fig. 5 It is the flow chart of the broadcasting method of another car networking communication V2X message according to embodiments of the present invention, as shown in figure 5, the stream Journey comprises the following steps：

Step S502, receives V2X message；

Step S504, parsing V2X message obtains the target broadcast cell of V2X message；

Step S506, the broadcast transmission V2X message in target broadcast cell.

In the present embodiment, after base station receives MBMS bearer messages, whether be V2X message, if not if judging the message It is V2X message, is then broadcasted, if V2X message, then application layer messages is further parsed, according to what is included in message Positional information judges whether to need to be broadcasted and needs to be broadcasted in which cell.Enter if necessary to the cell under base station Row broadcast, base station sends MBMS message by eating dishes without rice or wine.Optionally, broadcast transmission V2X message can be carried out by eating dishes without rice or wine.

Optionally, whether judge the message is that V2X message includes：Carry mark to judge whether carrying carries by MBMS V2X message；Or, carry the corresponding TMGI of session to judge whether carrying carries V2X message by MBMS；

Optionally, judge whether to need to be broadcasted according to the positional information included in message and need to carry out extensively in which cell The foundation broadcast includes：Region, V2X types of service, the order of severity of the corresponding traffic accident of V2X information as defined in national policy And involve scope, the UE scope of authority/geographical position.

The broadcaster of another car networking communication V2X message is provided in the present embodiment, and the device, which can be used independently, also may be used To be arranged in other equipment, such as apply on cell base station, or roadside unit equipment, optionally, roadside unit equipment are also wrapped The base station of bypass and the terminal of bypass are included, the device includes：

Receiving module, for receiving V2X message；

Parsing module, the target broadcast cell of V2X message is obtained for parsing V2X message；

Sending module, for the broadcast transmission V2X message in target broadcast cell.

The broadcasting method of another car networking communication V2X message is provided in the present embodiment, is applied in end side, including it is as follows Step：

Step S602, target broadcast area is determined according to the geographical location information of terminal position；

Step S604, network side equipment is sent to by the information of the target broadcast area, wherein, the target broadcast area is Broadcast the region of V2X message.

The present embodiment additionally provides a kind of broadcaster of car networking communication V2X message, applies in end side, including：

Determining module, for determining target broadcast area according to the geographical location information of terminal position；

Sending module, for the information of the target broadcast area to be sent into network side equipment, wherein, the target broadcast area Domain is the region of broadcast V2X message.

According to above-described embodiment, compared with correlation technique, can flexible dynamic configuration broadcast mechanism, so as to avoid message may Broadcasted in excessive region and cause a large amount of wastes of Radio Resource and a large amount of UE in radio open to have received under compulsion The problem of unrelated with its packet, so as to save the power consumption for receiving UE.

With reference to carrying out complete explanation according to an alternative embodiment of the invention：

Alternative embodiment 1：

In this example, it is assumed that terminal A sends V2X message, and need network side help broadcast, then terminal A can be with inciting somebody to action The V2X message is sent to serving BS by ascending honeycomb network and then is sent to V2X servers, and V2X servers pass through again MBMS mechanism gets off the V2X message broadcast transmissions.To realize this flow, network side, which needs first to establish MBMS, to be held Carry, broadcast transmission V2X message is then carried by the MBMS of foundation again.Wherein, UE is terminal, E-UTRAN and UTRAN Respectively global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio Access Network, referred to as UTRAN), the UTRAN (Evolved UTRAN, referred to as E-UTRAN) of evolution, MME/SGSN is respectively mobility management entity, Serving GPRS Support Node (Serving GPRS Supporting Node, Referred to as SGSN).

Fig. 6 is the flow chart according to alternative embodiment 1 of the present invention, as shown in fig. 6, including：

Step S60 (not shown in Fig. 6)：When V2X server wants will activate a MBMS carrying, V2X services Device sends an activation MBMS carrying solicited message to BM-SC, activation MBMS carryings solicited message include but do not limit with TMGI, service quality (Quality of Service, referred to as QoS), MBMS broadcast areas and time started.Wherein, TMGI It is optional.Wherein, MBMS broadcast areas parameter includes a MBMS area id list and/or cell i d lists.

Wherein, V2X servers can originally activate a MBMS carrying, and can also work as to receive for the first time needs by MBMS Enter line activating again after the V2X message for carrying transmission.

Step S61：BM-SC sends session initiation request Session Start Request to MBMS GW, and BM-SC exists Broadcast zone information is carried in MBMS session initiation requests.

Step S62：MBMS GW send session initiation response message Session Start Response to BM-SC；

Step S63：MBMS GW create MBMS bearer contexts, are each cell or cell component in broadcast area With an IP multicast address and C-TEID, afterwards by the session initiation request information comprising IP multicast address and C-TEID information Session Start Request are sent to MME.

Fig. 7 is the signaling process figure of the base station information interaction according to alternative embodiment of the present invention, as shown in fig. 7, cell can pass through X2 interface sends allocated IP address and C-TEID information to neighbor cell is logical.

Cell is received after the allocated IP address and C-TEID information of neighbor cell transmission, it is determined whether need to add the IP Multicast group；Or, MBMS GW create MBMS bearer contexts, and the cell in broadcast area is divided into a variety of small district's groups, The cell of different districts group there may be overlapping.Match somebody with somebody an IP multicast address and C-TEID afterwards for each cell component, and will bag Session initiation request information containing IP multicast address and C-TEID information is sent to MME.

Step S64：MME is received after the information, creates MBMS bearer contexts, and sending session initiation to MCE/eNB please Seek information Session Start Request.And include the IP multicast address and C-TEID of the cell in session initiation request information. If the cell is in multiple small district's groups, multiple IP multicast address and C-TEID may be allocated.

Step S65：Base station/MCE sends session initiation response message Session Start Response to MME.

Step S66：MME sends session initiation response message Session Start Response to MBMS GW.

Step S67：Base station sends session started message RAN Resource Setup to terminal；

Step S68：Base station adds ip multicast group S68.IP Multicast Join, receives MBMS user face datas.

Network side is established after MBMS carryings, after V2X servers or BM-SC receive V2X message packets, When sending the packet to MBMS-GW again, while carrying cell-of-origin information, MBMS GW are received after V2X message, IP multicast address and C-TEID that the message corresponds to the cell-of-origin are subjected to multicast transmission, then, cell-of-origin and addition should The neighbor cell of multicast group can receive the MBMS data of local zone.

Alternative embodiment 2

Fig. 8 is the flow chart according to alternative embodiment 2 of the present invention, as shown in figure 8, the present embodiment is similar to alternative embodiment 1, The difference of presence is as follows：

Difference in loading establishing process includes：

In step S73, IP multicast address of not reallocated during MBMS GW establishment MBMS bearer contexts,

In step S75 and S76, base station is sent in MBMS session initiation response messages to be connect for some MBMS session The IP address and C-TEID (it is contemplated that different cells distributes different C-TEID) of receipts.MBMS GW obtain each ENB or each cell are used for each TMGI IP address and TEID.

After the completion of carrying is set up, after V2X servers or BM-SC receive V2X message packets, then by the data Bag is when being sent to MBMS-GW, while carrying target cell information, MBMS GW are received after V2X message, using obtaining The IP address and C-TEID information obtained issues MBMS data corresponding target BS/cell in the way of unicast.

Alternative embodiment 3

In the present embodiment, V2X servers and/or BM-SC set up MBMS carrying sessions in units of cell, are each MBMS sessions distribute TMGI and broadcast area.Afterwards, network side carries broadcast transmission V2X by MBMS Message.

Specifically：V2X servers and/or BM-SC are set up MBMS carryings session flow in units of cell and comprised the following steps：

Step S81：When V2X server wants will activate a MBMS carrying, V2X servers send an activation MBMS carries solicited message to BM-SC.

Step S82：BM-SC sends session initiation request to MBMS GW, and BM-SC please in MBMS session initiations Ask and broadcast area is carried in message.

Wherein, V2X servers and/or BM-SC can be according to the different using cell or set of cells to be single of V2X types of service One or more MBMS carrying sessions are set up in position.

The broadcast area of MBMS sessions is cell-of-origin and all neighbor cells of the cell.

Step S83：MBMS GW are sent after session initiation response message to BM-SC, create MBMS bearer contexts, IP multicast address and C-TEID are distributed, afterwards by (TMGI, Flow Identifier, QoS, MBMS service Area, list of cell IDs if available,Session identifier,estimated session duration,transport network IP Multicast Address (es), IP address (es) of the multicast source, C-TEID ...) information is sent to MME.

Step S84：MME is received after the information, creates MBMS bearer contexts, and sending session initiation to MCE/eNB please Seek information.

Step S85：Base station sends session initiation response message to MCE/MME.

Step S86：Base station sends session started message to terminal.

Step S87：Base station adds ip multicast group, receives MBMS user face datas.

Step S88：Base station sends MBMS data by eating dishes without rice or wine.

Afterwards, network side carries broadcast transmission V2X message by MBMS and included：

V2X servers are received after V2X message packets, are then forwarded to BM-SC, V2X servers or BM-SC differentiate should Which cell-of-origin packet comes from, so that it is determined that corresponding to which MBMS carrying, and it is wide to be delivered to corresponding carrying progress IP Broadcast transmission；Or, V2X servers are received after V2X message packets, are then forwarded to BM-SC, V2X servers or BM-SC According to the geographical location information in V2X packets, so that it is determined that its broadcasting area, further determines that and is held corresponding to which MBMS Carry, and be delivered to corresponding carrying and carry out IP broadcast transmission.

Optionally, when V2X servers judge that the foundation broadcasted in which region includes：National policy；V2X types of service； The order of severity of the corresponding traffic accident of V2X information and involve scope；The UE scope of authority/geographical position.

Alternative embodiment 4

The present embodiment is similar to alternative embodiment 3, and the difference existed is as follows：

Difference in loading establishing process includes：

In the step S91 and step S92 of the present embodiment, V2X servers and/or BM-SC can be according to V2X types of service Difference set up in units of cell one or more MBMS carrying session.

The broadcast area of MBMS sessions is a base station or a cell.

Identical for V2X business, the different MBMS session V2X servers of broadcast area and/or BM-SC can be them Distribute identical TMGI.

After V2X servers receive V2X message, the message target broadcast cell is judged for one or more cell, then, V2X servers or BM-SC identify the corresponding MBMS carryings of one or more cell, and V2X message packets are delivered Broadcast transmission is carried out to one or more corresponding carrying.

Optionally, when V2X servers judge that the foundation broadcasted in which region includes：National policy；V2X service class Type；The order of severity of the corresponding traffic accident of V2X information and involve scope；The UE scope of authority/geographical position.

Alternative embodiment 5

In the present embodiment, V2X servers and/or BM-SC set up MBMS carryings in units of UE, are each MBMS Session distributes TMGI and broadcast area.

One or more MBMS session can be set up in units of UE according to the difference of V2X types of service.

Assuming that after vehicle B starts, V2X message is sent first, and V2X servers are uploaded to by Cellular Networks.

Step S101：When V2X servers receive the V2X data from vehicle B first, V2X servers send one Activate MBMS and carry solicited message to BM-SC；

Step S102：The geographical location information of V2X servers or BM-SC in V2X message judges that broadcast area is believed List is ceased, and the broadcast zone information list is sent to MBMS GW by session establishment solicited message.

Wherein, judge to include in the foundation which region is broadcasted：National policy；V2X types of service；V2X information correspondence Traffic accident the order of severity and involve scope；The UE scope of authority/geographical position.

Step S103：MBMS GW are sent after session initiation response message to BM-SC, create MBMS bearer contexts, IP multicast address and C-TEID are distributed, session initiation request information is sent to MME afterwards.

Step S104：MME is received after the information, creates MBMS bearer contexts, and session initiation is sent to MCE/eNB Solicited message.

Step S105：Base station sends session initiation response message to MCE/MME.

Step S106：Base station sends session started message to terminal.

Step S107：Base station adds ip multicast group, receives MBMS user face datas.

Step S108：Base station sends MBMS data by eating dishes without rice or wine.

When vehicle B switches or be moved to other regions, V2X servers or BM-SC are according in V2X message Geographical location information judges that broadcast message list changes, then BM-SC can initiate session updates process renewal broadcast area.

After the completion of carrying is set up, network side carries broadcast transmission V2X message by MBMS.Specifically, when V2X is serviced When device receives the V2X data from vehicle B, the corresponding MBMS carryings of vehicle B are judged, by V2X message packets It is delivered to corresponding carrying and carries out broadcast transmission.

Alternative embodiment 6

The flow that foundation is carried in this implementation is similar with prior art or above example, and difference is the transmission of user face data. After MBMS carryings are successfully established, whether after base station receives MBMS bearer messages, it is V2X message to judge the message, If V2X message, then application layer messages are further parsed, judged whether to need to carry out according to the positional information included in message Broadcast and needs are broadcasted in which cell.Broadcasted if necessary to the cell under base station, base station passes through hair of eating dishes without rice or wine Send MBMS message.

Optionally, whether judge the message is that V2X message includes：Carry mark to judge whether carrying carries by MBMS V2X message；Or, carry the corresponding TMGI of session to judge whether carrying carries V2X message by MBMS.

Optionally, judge whether to need to be broadcasted according to the positional information included in message and need to carry out in which cell The foundation of broadcast includes：National policy；V2X types of service；The order of severity of the corresponding traffic accident of V2X information and involve Scope；The UE scope of authority/geographical position.

Alternative embodiment 7

After base station receives the data-message of terminal transmission, whether be V2X message, if not V2X message if judging the message, Upper layer network element is then sent to, if V2X message, then the target broadcast cell that V2X message obtains V2X message, bag is parsed Include following two modes：

The application layer of parsing V2X message obtains the geographical location information and/or traffic type information of V2X message, so as to obtain mesh Mark broadcast cell information；

The IP headers of V2X message are parsed, target broadcast cell information is obtained according to IP headers.

Through the above description of the embodiments, those skilled in the art can be understood that the side according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases before Person is more preferably embodiment.Understood based on such, technical scheme substantially makes tribute to prior art in other words The part offered can be embodied in the form of software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD) in, including some instructions to cause a station terminal equipment (can be mobile phone, computer, Server, or the network equipment etc.) method that performs each embodiment of the invention.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can be by It is set to the program code that storage is used to perform following steps：

S1, sets up the MBMS carryings for radio diffusion van connected network communication V2X message, and receive V2X message；

S2, according to the position adjustment V2X of the position where the terminal for sending V2X message and/or the cell-of-origin for sending V2X message The broadcast area of message obtains specifying broadcast area；

S2, broadcast transmission V2X message in specified broadcast area is carried on by MBMS.

Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor performs to set up according to the program code stored in storage medium is used for radio diffusion van The MBMS carryings of connected network communication V2X message, and receive V2X message；

Alternatively, in the present embodiment, processor is performed according to the program code stored in storage medium and disappeared according to transmission V2X The broadcast area of the position adjustment V2X message of the cell-of-origin of position and/or transmission V2X message where the terminal of breath is specified Broadcast area；

Alternatively, in the present embodiment, processor is performed according to the program code stored in storage medium and carried by MBMS Specifying broadcast transmission V2X message in broadcast area.

Alternatively, the specific example in the present embodiment may be referred to the example described in above-described embodiment and optional embodiment, The present embodiment will not be repeated here.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can use general calculating Device realizes that they can be concentrated on single computing device, or be distributed on the network that multiple computing devices are constituted, Alternatively, they can be realized with the executable program code of computing device, it is thus possible to be stored in storage device In performed by computing device, and in some cases, can be to perform shown or described step different from order herein Suddenly, they are either fabricated to each integrated circuit modules respectively or be fabricated to the multiple modules or step in them single Integrated circuit modules are realized.So, the present invention is not restricted to any specific hardware and software combination.

The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art, The present invention can have various modifications and variations.Within the spirit and principles of the invention, any modification for being made, equivalent substitution, Improve etc., it should be included in the scope of the protection.

Claims

The broadcasting method of V2X message 1. a kind of car networking communicates, it is characterised in that including：

Set up the multimedia broadcast multi-broadcasting business MBMS carryings for radio diffusion van connected network communication V2X message；

V2X message is received, and the broadcast area for adjusting the V2X message according to terminal location and/or subdistrict position is obtained Broadcast area is specified, wherein, the position where terminal of the terminal location to send the V2X message, the cell Position is the position for the cell-of-origin for sending the V2X message；

V2X message described in broadcast transmission in the specified broadcast area is carried on by the MBMS.
2. according to the method described in claim 1, it is characterised in that setting up many matchmakers for radio diffusion van connected network communication V2X message After body BroadCast MultiCast Service MBMS carryings, methods described also includes：

Receive the session initiation request from broadcast/multicast service center BM-SC；

An IP multicast address and cell endpoint of a tunnel mark are distributed for each first community and/or second community of broadcast area Know C-TEID, wherein, the IP multicast address and the C-TEID are used to identifying the first community and/or second small The address in area, wherein, the second community is directly or indirectly adjacent with the first community；

The IP multicast address and the C-TEID are issued by mobility management entity MME by session initiation request.
3. method according to claim 2, it is characterised in that distributing an IP group for each first community of broadcast area After broadcasting address and cell Tunnel End Point Identifier C-TEID, in addition to：

First community in the broadcast area sends the first community to the second community by X2 interface and is allocated IP multicast address and C-TEID information；

What the second community was fed back after the IP multicast address and C-TEID information is received is used to be confirmed whether to add The response message of the broadcast area.
4. according to the method described in claim 1, it is characterised in that setting up the MBMS for radio diffusion van connected network communication V2X message Before carrying, methods described also includes：

The MBMS session initiation response messages that eNB is sent are received, wherein, the MBMS session initiations response message The middle IP address and C-TEID carried for receiving the MBMS sessions.
5. method according to claim 4, it is characterised in that when eNB administrations have multiple cells, the MBMS The IP address corresponding with each cell is carried in session initiation response message.
6. according to the method described in claim 1, it is characterised in that carried in the V2X message and send the V2X message Cell-of-origin information, wherein, the ID that the cell-of-origin information includes cell-of-origin is identified；Institute is carried on by the MBMS State in specified broadcast area that V2X message includes described in broadcast transmission：

The V2X message is sent to by way of MBMS carryings are with multicast corresponding with the cell-of-origin information Cell-of-origin and/or the cell adjacent with the cell-of-origin.
7. according to the method described in claim 1, it is characterised in that be carried on by the MBMS in the specified broadcast area V2X message includes described in broadcast transmission：

The V2X message is received, and receives the target cell list information of the V2X message, wherein, the target The ID that cell list information includes Target cell is identified；

The V2X message is sent to and the target cell information pair by way of MBMS carryings are with unicast The cell answered and/or base station.
8. a kind of method for building up of MBMS carryings, it is characterised in that including：

One or more MBMS carryings are set up in units of cell/small district's groups；

A Temporary Mobile Group Identity TMGI and a broadcast area are distributed for each MBMS carryings session；

Activation MBMS carryings request or session establishment request are sent to network side element；

Wherein, the MBMS is carried for the network side element broadcast transmission V2X message.
9. method according to claim 8, it is characterised in that described to set up one or more in units of cell/small district's groups MBMS carryings include：According to the V2X types of service of the V2X message, one is set up in units of cell/small district's groups Or multiple MBMS carryings corresponding with the V2X types of service.
10. method according to claim 8, it is characterised in that wherein, the broadcast area includes：The cell-of-origin and with The adjacent cell in the cell-of-origin.
11. method according to claim 8, it is characterised in that wherein, the broadcast area includes the area of coverage of a base station Domain or a cell.
12. method according to claim 8, it is characterised in that multiple MBMS carryings are set up in units of cell/small district's groups, And be not present between the broadcast area of two of which MBMS carryings overlapping region when, be described two MBMS carrying Distribute identical TMGI.
13. method according to claim 8, it is characterised in that set up one or more in units of cell/small district's groups described MBMS carryings include：

Judge the target broadcast area of the V2X message received whether in the broadcast area set that existing MBMS is carried；

If judged result is no, sends activation MBMS carryings request to network side element or session establishment is asked, wherein, The activation MBMS carryings request or session establishment solicited message carry MBMS broadcast areas.
14. method according to claim 8, it is characterised in that asked by activation MBMS carryings request or session establishment Ask and be sent to after network side element, methods described also includes：

The V2X message is received, and determines MBMS carryings corresponding with the target broadcast cell of the V2X message；

The V2X message diliveries are subjected to broadcast transmission to the specified MBMS carryings.
15. method according to claim 8, it is characterised in that determine to carry out the broadcast of broadcast transmission according at least one of Region：It is predefined region, V2X types of service, the danger classes of the corresponding traffic accident of the V2X message, described The corresponding traffic accident of V2X message involves scope, the scope of authority of cell terminal, the geographical position of cell terminal.
16. a kind of method for building up of MBMS carryings, it is characterised in that including：

One or more MBMS carryings are set up in units of terminal；

A Temporary Mobile Group Identity TMGI and a broadcast area are distributed for each MBMS carryings session；

Activation MBMS carryings request or session establishment request are sent to network side element；

Wherein, the MBMS is carried for the network side element broadcast transmission V2X message.
17. method according to claim 16, it is characterised in that MBMS carryings are set up in units of terminal to be included：With end Hold and one or more MBMS carryings are set up according to the V2X types of service of the V2X message for unit.
18. method according to claim 16, it is characterised in that one or more MBMS carryings are set up in units of terminal Including：

Judge the terminal whether in the terminal set for having built up MBMS carryings；

Judged result for it is no when, and geographical location information in the V2X message judges that broadcast zone information is arranged Table；

By the broadcast zone information list by activate MBMS carryings request or session establishment solicited message be sent to it is described Network side element.
19. method according to claim 18, it is characterised in that by the broadcast zone information list by activating MBMS Carrying request or session establishment request are sent to after the network side element, and methods described also includes：

Whether the geographic location area where detecting the terminal changes；

When the geographic location area where detecting the terminal changes, sent to the network side element for more The session updates process of the new broadcast area.
20. method according to claim 19, it is characterised in that whether the geographic location area where the detection terminal Change including：

Geographical location information in the V2X message sent according to the terminal judges whether broadcast area list changes；

When the broadcast area list changes, the geographic location area where determining the terminal changes.
21. method according to claim 16, it is characterised in that determine to carry out the broadcast of broadcast transmission according at least one of Region：It is predefined region, V2X types of service, the danger classes of the corresponding traffic accident of the V2X message, described The corresponding traffic accident of V2X message involves scope, the scope of authority of the terminal, the geographical location information of the terminal.
The broadcasting method of V2X message 22. a kind of car networking communicates, is applied in base station side and/or roadside unit equipment, it is characterised in that Including：

Receive V2X message；

Parse the target broadcast cell that the V2X message obtains the V2X message；

The V2X message described in broadcast transmission in the target broadcast cell.
23. method according to claim 22, it is characterised in that receiving V2X message includes：Receive and carried by MBMS The V2X message sent.
24. method according to claim 22, it is characterised in that the parsing V2X message obtains the mesh of the V2X message Marking broadcast cell includes one of in the following manner：

The application layer for parsing the V2X message obtains the geographical location information and/or traffic type information of the V2X message, And the target broadcast cell information is obtained according to the geographical location information and/or traffic type information；Or

The IP headers of the V2X message are parsed, and the target broadcast cell information is obtained according to the IP headers.
25. method according to claim 23, it is characterised in that disappeared receiving by the MBMS V2X for carrying transmission Before breath, methods described also includes：

Mark is carried by MBMS to judge whether the carrying carries V2X message, or, meeting is carried by MBMS Corresponding TMGI is talked about to judge whether the carrying carries V2X message.
26. method according to claim 22, it is characterised in that the target of the V2X message is obtained according at least one of Broadcast cell：Predefined region, V2X types of service, the danger classes of the corresponding traffic accident of the V2X message, institute That states the corresponding traffic accident of V2X message involves scope, the scope of authority of terminal, the geographical location information of terminal.
The broadcasting method of V2X message 27. a kind of car networking communicates, is applied in end side, it is characterised in that including：

Target broadcast area is determined according to the geographical location information of terminal position；

The information of the target broadcast area is sent to network side equipment, wherein, the target broadcast area is broadcast V2X The region of message.
The broadcaster of V2X message 28. a kind of car networking communicates, it is characterised in that including：

Processing module, for setting up the multimedia broadcast multi-broadcasting business MBMS for radio diffusion van connected network communication V2X message Carrying；

Adjusting module, the V2X message is adjusted for receiving V2X message, and according to terminal location and/or subdistrict position Broadcast area obtain specifying broadcast area, wherein, where terminal of the terminal location to send the V2X message Position, the subdistrict position is the position for the cell-of-origin for sending the V2X message；

Sending module, disappears for being carried on V2X described in broadcast transmission in the specified broadcast area by the MBMS Breath.
The broadcaster of V2X message 29. a kind of car networking communicates, is applied in base station side and/or roadside unit equipment, it is characterised in that Including：

Receiving module, for receiving V2X message；

Parsing module, the target broadcast cell of the V2X message is obtained for parsing the V2X message；

Sending module, for the V2X message described in broadcast transmission in the target broadcast cell.
The broadcaster of V2X message 30. a kind of car networking communicates, is applied in end side, it is characterised in that including：

Determining module, for determining target broadcast area according to the geographical location information of terminal position；

Sending module, for the information of the target broadcast area to be sent into network side equipment, wherein, the target is wide Broadcast region of the region for broadcast V2X message.