CN107295469B

CN107295469B - V2X service data transmission method and device

Info

Publication number: CN107295469B
Application number: CN201610203560.6A
Authority: CN
Inventors: 梁靖; 傅婧
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-04-01
Filing date: 2016-04-01
Publication date: 2019-12-20
Anticipated expiration: 2036-04-01
Also published as: CN107295469A

Abstract

The invention provides a transmission method and a device of V2X service data, wherein the method comprises the following steps: acquiring position information of a first terminal; determining a service receiving area of a V2X service data packet of the first terminal according to the position information of the first terminal; transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal. The scheme of the invention can reduce the downlink congestion and improve the capacity of the system.

Description

V2X service data transmission method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting V2X service data.

Background

V2X (vehicle-to-Everything) communication is a popular topic in the communication field, and V2X communication mainly includes three contents:

V2V (Vechile-to-Vechile, car-to-car): communication between On Board Units (OBUs) On the vehicle;

V2I (vehicle-to-Infrastructure): communication between the vehicle and an RSU (Road Side Unit);

V2P (vehicle-to-Pedestrian): communication between the vehicle and the pedestrian.

For V2X, if V and X use communication via the network, it can be referred to as V2X communication via the network (hereinafter, simply referred to as Uu V2X); if V and X use direct communication mode, it can be called V2X direct communication (hereafter referred to as PC 5V 2X).

As shown in fig. 1, one scene of V2X. In the figure, the vehicle uplinks the V2X message through the Uu port to the E-UTRAN network, which in turn sends the V2X message downstream through the Uu port to other neighboring vehicles (or users). Wherein, for downlink, the E-UTRAN may use a broadcast mechanism, such as MBMS network for transmission.

In fig. 1, after the E-UTRAN receives the uplink V2X message, in order for other neighboring vehicles (or users) to receive the V2X message, the message needs to be broadcast in both the neighboring cell and the downlink in the local cell.

As in FIG. 2, after vehicle A sends the V2X message, the E-UTRAN needs to broadcast that cell in all of the cells {1, 2, 3, 4, 5, 6, 7 }. Since all V2X vehicle users periodically send V2X messages, simulation evaluation shows that if V2X messages are to be broadcast in the adjacent cells and the downlink of the cell, the downlink capacity is insufficient.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a method and an apparatus for transmitting V2X service data, in which the V2X service data of a sending terminal is only sent to a receiving terminal in a service receiving area of the sending terminal, so that the overall capacity of the system can be increased.

In order to solve the foregoing technical problem, an embodiment of the present invention provides a method for transmitting V2X service data, including:

acquiring position information of a first terminal;

determining a service receiving area of a V2X service data packet of the first terminal according to the position information of the first terminal;

transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

Wherein, the step of determining the service receiving area of the V2X service packet of the first terminal according to the location information of the first terminal comprises:

determining a service sending area of the first terminal according to the position information of the first terminal;

and determining a service receiving area of the first terminal according to the service sending area of the first terminal.

Wherein, the step of determining the service sending area of the first terminal according to the position information of the first terminal comprises:

determining a service sending area where a first terminal is currently located as a service sending area of the first terminal according to position information of the first terminal in a plurality of service sending areas within a coverage area of a base station accessed by the first terminal; wherein the service transmission area of the first terminal is one of the plurality of service transmission areas.

Wherein, the step of determining the service receiving area of the first terminal according to the service sending area of the first terminal comprises:

at least one service receiving area within a first distance range from a service sending area of a first terminal is used as a service receiving area of the first terminal from a plurality of service receiving areas within the coverage range of a base station where the first terminal is located; wherein, the first distance range is a transmission distance range of the V2X service data.

After determining the service receiving area of the V2X service data packet of the first terminal, the method further includes:

and sending the attribute information of the first terminal to a receiving base station in a service receiving area of the first terminal.

The attribute information of the first terminal comprises an identifier of the first terminal;

the step of transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area comprises:

and sending the V2X service data packet carrying the identifier of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in a service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header.

Wherein, the attribute information of the first terminal comprises an identifier of the first terminal and a service receiving area;

sending the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to the V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by the V2X server through the broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the received identifier of the first terminal and the service receiving area, and the identifier of the first terminal and the service receiving area in the packet header.

Wherein, the attribute information of the first terminal comprises a service receiving area of the first terminal;

sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to the V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through the broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal received by the receiving base station and the service receiving area of the first terminal in the packet header.

The step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area includes:

sending a V2X service data packet carrying a service receiving area of a first terminal in a packet header to a V2X server, so that after receiving a V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by a V2X server through a broadcast multicast service center BM-SC, the receiving base station directly sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area in the packet header; and the identification of the service receiving area is unique in the whole network.

The embodiment of the invention also provides a transmission method of the V2X service data, which comprises the following steps:

receiving a V2X service packet of the first terminal transmitted within a service reception area of the first terminal;

and according to the information carried in the packet header carried in the V2X service data packet, sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal.

Wherein the step of receiving the V2X service packet of the first terminal transmitted in the service reception area of the first terminal comprises:

and receiving the V2X service data packet of the V2X of the first terminal sent by the V2X server in the service receiving area of the first terminal through the broadcast multicast service center BM-SC.

Before the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet, the method further includes:

and receiving the attribute information of the first terminal sent by the sending base station where the first terminal is located.

the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet includes:

if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the data.

Wherein the attribute information of the first terminal includes: an identifier of a first terminal and a service receiving area;

if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the service data.

Wherein the attribute information of the first terminal includes: a service receiving area of a first terminal;

if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

Wherein, according to the information carried in the packet header carried in the V2X service data packet, the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal includes:

according to the service receiving area of the first terminal carried in the packet header, directly sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending; and the identification of the service receiving area is unique in the whole network.

An embodiment of the present invention further provides a device for transmitting V2X service data, including:

the acquisition module is used for acquiring the position information of the first terminal;

a determining module, configured to determine, according to the location information of the first terminal, a service receiving area of a V2X service packet of the first terminal;

a sending module, configured to send a V2X service data packet of a first terminal to at least one second terminal in a service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

Wherein the determining module comprises:

a first determining unit, configured to determine a service sending area of the first terminal according to the location information of the first terminal;

a second determining unit, configured to determine a service receiving area of the first terminal according to the service sending area of the first terminal.

Wherein the first determining unit is specifically configured to: determining a service sending area where a first terminal is currently located as a service sending area of the first terminal according to position information of the first terminal in a plurality of service sending areas within a coverage area of a base station accessed by the first terminal; wherein the service transmission area of the first terminal is one of the plurality of service transmission areas.

Wherein the second determining unit is specifically configured to: at least one service receiving area within a first distance range from a service sending area of a first terminal is used as a service receiving area of the first terminal from a plurality of service receiving areas within the coverage range of a base station where the first terminal is located; wherein, the first distance range is a transmission distance range of the V2X service data.

The sending module is further configured to send the attribute information of the first terminal to a receiving base station in a service receiving area of the first terminal.

the sending module is specifically configured to: and sending the V2X service data packet carrying the identifier of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in a service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header.

the sending module is specifically configured to: sending a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to a V2X server, so that after receiving a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the identifier of the first terminal, the service receiving area, the identifier of the first terminal in the packet header and the service receiving area.

the sending module is specifically configured to: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to the V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through the broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal received by the receiving base station and the service receiving area of the first terminal in the packet header.

Wherein the sending module is specifically configured to: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station directly sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal in the packet header, wherein the identifier of the service receiving area is unique throughout the network.

An embodiment of the present invention further provides a base station, including:

the receiver is used for acquiring the position information of the first terminal;

a processor, coupled to the receiver, configured to perform the functions of the following modules:

a transmitter, connected to the processor, for transmitting attribute information of the first terminal to a receiving base station in a service receiving area of the first terminal and transmitting a V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

a receiving module, configured to receive a V2X service data packet of a first terminal sent in a service receiving area of the first terminal;

a sending module, configured to send, according to information carried in a packet header carried in a V2X service data packet, the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in a service receiving area of the first terminal.

The receiving module receives a V2X service data packet of the first terminal sent by the V2X server in the service receiving area of the first terminal through the broadcast multicast service center BM-SC.

The receiving module is further configured to receive attribute information of the first terminal sent by a sending base station where the first terminal is located.

the sending module is specifically configured to: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the data.

the sending module is specifically configured to: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the service data.

the sending module is specifically configured to: if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

Wherein the sending module is specifically configured to: according to the service receiving area of the first terminal carried in the packet header, directly sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending; and the identification of the service receiving area is unique in the whole network.

a receiver for receiving a V2X service packet of the first terminal transmitted within a service reception area of the first terminal;

and the transmitter is connected with the receiver and is used for transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal by using the information carried in the packet header carried in the V2X service data packet.

The technical scheme of the invention has the following beneficial effects:

in the scheme, the position information of the first terminal is acquired; determining a service receiving area of a V2X service data packet of the first terminal according to the position information of the first terminal; transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal. Therefore, the V2X service data of the first terminal is only sent to the receiving terminal in the service receiving area of the first terminal, the downlink capacity congestion of the system is avoided, and the system capacity is improved.

Drawings

FIG. 1 is a scenario of V2X;

fig. 2 is a schematic diagram of downlink broadcast in the V2X scenario;

FIG. 3 is a diagram illustrating an architecture of an MBMS network;

FIG. 4 is a Uu V2X network architecture 1;

FIG. 5 is Uu V2X network architecture 2;

fig. 6 is a first flowchart of a transmission method of V2X service data according to the present invention;

fig. 7 is a second flowchart of the transmission method of V2X service data according to the present invention;

fig. 8 is a specific signaling flow of the transmission method illustrated in fig. 7;

fig. 9 is a third flowchart of a V2X service data transmission method according to the present invention;

fig. 10 is a specific signaling flow of the transmission method shown in fig. 9;

fig. 11 is a fourth flowchart of a V2X service data transmission method according to the present invention;

fig. 12 is a specific signaling flow of the transmission method illustrated in fig. 11;

fig. 13 is a flowchart of a transmission method of V2X service data of a receiving base station.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The invention aims at the problem that in the prior art, the downlink capacity is insufficient when V2X service data is broadcasted in the adjacent cell and the downlink of the cell. The following embodiments of the present invention avoid the system downlink capacity congestion and improve the system capacity by sending the V2X service data only to the receiver terminal within the service receiving area of the sending terminal.

As shown in fig. 3, which is a schematic diagram of an MBMS network architecture, in an MBMS (Multimedia Broadcast Multicast Service) network architecture of an LTE system, a UE (user equipment) communicates with an MCE (Multi-cell/Multicast Coordination Entity) and an MBMS GW (Multimedia Broadcast Multicast Service gateway) through an eNB (evolved base station), the MCE communicates with an MME (mobile management Entity), the MME communicates with an MBMS GW (Multimedia Broadcast Multicast Service gateway), the MBMS GW communicates with a BM-SC (Broadcast Multicast Service center), and the BM-SC communicates with a ContentProvider, a content provider).

In the system architecture, the interface M3 is: providing Session (Session) management related functions such as Session start, Session stop notification between the MME and the MCE; interface M2 is: providing functions of session management, MBMS scheduling information transmission and the like between the MCE and the eNB; interface M1 is: MBMS service transmission is provided between an MBMS GW and an eNB.

The Uu V2X network architecture is schematic, and currently, Uu V2X supports two network architectures:

as shown in fig. 4, for Uu V2X network architecture 1: the terminal is in communication connection with the eNodeB through a Uu interface, the eNodeB is in communication connection with the MCE through an M2 interface, the eNodeB is in communication connection with an S-GW through an S1-u interface, the eNodeB is in communication connection with the MBMS-GW through an M1 interface, the eNodeB is in communication connection with the MME through an S1-MME interface, the MCE is in communication connection with the MME through an M3 interface, the S-GW is in communication connection with the MME through an S11 interface, the MME is in communication connection with the MBMS-GW through an Sm interface, the MBMS-GW is in communication connection with the BM-SC through an SGi-MB interface, the S-GW is in communication connection with the P-GW through an S5 interface, the BM-SC is in communication connection with the P-GW through an SGi interface, the P-GW is in communication connection with the PCRF through a Gx interface, the MB-SC is in communication connection with the V2X server through an MB2 interface, the P-GW is in communication connection. The network architecture fully multiplexes existing eMBMS/SC-PTM network architectures.

As shown in fig. 5, for Uu V2X network architecture 2: the terminal is connected with the eNode B in communication, the eNode B is connected with the L-GW and the MBMS-GW in communication, the MBMS-GW is connected with the BM-SC in communication, the BM-SC and the L-GW are both connected with the V2X server, and the eNodeB, the L-GW, the MBMS-GW, the BM-SC and the V2X server form an RSU (remote subscriber unit) of the eNode B type. The architecture is characterized in that MBMS related user plane nodes are sunk to the eNB, and the purpose is to reduce user plane time delay.

The use of cellular networks to support intelligent transportation systems (Uu V2X) is a hot spot of current research in the field of communications. As presently understood, Uu V2X transmits upstream using unicast and downstream using eMBMS network architecture as shown in fig. 3. One problem with eMBMS network architectures is that service transmission is based on static or semi-static configured MBSFN area transmission, i.e. any message sent by V2X application server (V2X application server) to BM-SC is transmitted in all cells in the MBSFN area.

However, considering that the V2X message is different from the conventional MBMS service, the V2X message is characterized in that it may be valid only in a part of the MBSFN area, and the valid areas of V2X messages transmitted by terminals at different locations in the MBSFN area are also different. There is therefore a need to consider how to implement flexible UuV2X messaging within semi-statically or statically configured MBSFN areas to increase the overall system capacity.

First embodiment

As shown in fig. 6, a first embodiment of the present invention provides a method for transmitting V2X service data, including:

step 61, acquiring the position information of the first terminal; the first terminal is a terminal sending V2X service data, and the location information of the first terminal may be geographical location information of the first terminal;

step 62, determining a service receiving area of the V2X service data packet of the first terminal according to the location information of the first terminal;

in this step, specifically, the service sending area of the first terminal may be determined according to the location information of the first terminal, and the service receiving area of the first terminal may be determined according to the service sending area of the first terminal;

here, in a plurality of service transmission areas within the coverage area of a base station to which a first terminal accesses, determining a service transmission area in which the first terminal is currently located as the service transmission area of the first terminal according to the position information of the first terminal; wherein a service transmission area of the first terminal is one of the plurality of service transmission areas;

further, from a plurality of service receiving areas within the coverage area of the base station where the first terminal is located, at least one service receiving area within a first distance range from the service sending area of the first terminal is used as the service receiving area of the first terminal; the first distance range is a transmission distance range of the V2X service data;

specifically, the base station may divide the geographical area under its coverage into a plurality of V2X traffic transmission areas, each area corresponding to one or more V2X traffic reception areas; the base station determines the service receiving area according to which V2X service transmitting area the geographical position of the UE is in; for example, a plurality of cells within a range of 150 meters from the service transmission area may be used as a service reception area corresponding to the service transmission area, where the range of 150 meters is a propagation range of the V2X service;

step 63, sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

The first embodiment obtains the position information of the first terminal; determining a service receiving area of a V2X service data packet of the first terminal according to the position information of the first terminal; transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal. Therefore, the V2X service data of the first terminal is only sent to the receiving terminal in the service receiving area of the first terminal, the downlink capacity congestion of the system is avoided, and the system capacity is improved.

Second embodiment

As shown in fig. 7, a second embodiment of the present invention provides a method for transmitting V2X service data, including:

step 71, acquiring position information of the first terminal;

step 72, determining a service receiving area of the V2X service data packet of the first terminal according to the location information of the first terminal;

step 73, sending the attribute information of the first terminal to a receiving base station in the service receiving area of the first terminal and sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

In this step 73, the attribute information of the first terminal includes an identifier of the first terminal, and the implementation manner of this step 73 is as follows: sending the identifier of the first terminal to a receiving base station in a service receiving area of the first terminal, and sending the V2X service data packet carrying the identifier of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal in the packet header sent by the V2X server through BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header.

Specifically, as shown in fig. 8, the signaling flow includes:

the base station 1(eNB1) divides the geographical location under its coverage into multiple V2X traffic transmission areas, each corresponding to one or more V2X traffic reception areas;

the base station 1 receives uplink V2X service data and current geographical position information sent by the UE 1;

the base station 1 determines its V2X service transmission area and further determines its service reception area based on the geographical location information of the UE1, for example, in the scenario of fig. 2, the inter-station distance (ISD) is 500m, and the propagation range of the V2X service data is 150m, so that the V2X service data transmitted by the vehicle a only needs to be broadcast in the service reception area of the vehicle a, i.e., the cell {1, 4, 5 };

the base station 1 notifies the identity (S-TMSI) of the UE1 to the receiving base stations (including base station 2 and/or base station 3) in the service receiving area of the UE1, and both the base station 2 and the base station 3 have partial receiving areas of the V2X service of the UE 1;

the base station 1 transmits the identity of the UE1 as a data header of the V2X service, together with V2X service data, to the V2X server.

The specific format of the data packet header is as follows:

Flag

Length

UE ID

wherein, Flag is an identification field to indicate whether the data packet header contains content, Length is a Length field to indicate the Length of the UE ID, and the UE ID is a specific UE identifier (such as S-TMSI).

The V2X server sends the V2X service data packet (including the header and the V2X service data) to the BM-SC together, and the BM-SC sends the service to all base stations that have established the service tunnel in a broadcast (MBMS)/multicast (SC-PTM) manner, as shown in the scenario shown in fig. 2, the V2X service data packet is sent to the base stations corresponding to cells 1, 2, 3, 4, 5, 6, and 7, respectively.

The base station (corresponding to each of cells 1, 2, 3, 4, 5, 6, and 7) that received the V2X service data packet parses the header of the V2X service data packet, and identifies the UE id (S-TMSI of UE 1) therein for comparison with the UE id previously received and stored by itself.

If the base station finds that the UE identity is currently saved (the base station 2 and the base station 3 find that the S-TMSI of the UE1 is currently saved), the V2X service data packet is transmitted under the base station (the base station 2 and the base station 3 transmit the V2X service).

If the base station finds that the UE identity is not stored (except for base station 2 and base station 3), the V2X service packet is not sent.

Third embodiment

As shown in fig. 9, a third embodiment of the present invention provides a method for transmitting V2X service data, including:

step 91, acquiring position information of a first terminal;

step 92, determining a service receiving area of the V2X service data packet of the first terminal according to the location information of the first terminal;

step 93, sending the attribute information of the first terminal to a receiving base station in the service receiving area of the first terminal and sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

In step 93, the attribute information of the first terminal includes a service receiving area of the first terminal, and the implementation manner of step 93 is as follows: sending a service receiving area of a first terminal to a receiving base station in the service receiving area of the first terminal, and sending a V2X service data packet carrying the service receiving area of the first terminal in a packet header to a V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal received by the receiving base station and the service receiving area of the first terminal in the packet header.

Specifically, as shown in fig. 10, the signaling flow is as follows:

the base station 1 divides the geographical position covered by the base station into a plurality of V2X service transmitting areas, wherein each service transmitting area corresponds to one or a plurality of V2X service receiving areas;

the UE1 sends uplink V2X service data and current geographical position information to the base station 1;

the base station 1 determines a V2X service sending area and further determines a service receiving area based on the geographical location information of the UE;

the base station 1 notifies the service receiving area to the receiving base stations (base station 2 and/or base station 3) in the service receiving area, wherein the base station 2 is notified that the service receiving area is cell 1, and the base station 3 is notified that the service receiving area is cell 2. In addition, the base station 1 transmits the service reception area as a data header of the V2X service to the V2X server together with the V2X service data.

If the service receiving area identifier is unique (for example, ECGI) throughout the network, the base station 1 does not separately notify the service receiving area to the base stations 2 and 3, and only needs to send the service receiving area to the V2X server as the packet header of the V2X service packet.

The specific format of the data packet header is as follows:

Flag

Length

Receiving Area

wherein, Flag is an identification field indicating whether the Receiving Area of the header contains content, Length is a Length field indicating the Length of the Receiving Area, and the Receiving Area is a specific Receiving Area (such as a cell list).

The V2X server sends the data packet header of the V2X service and the service to the BM-SC, and the BM-SC sends the service to all base stations which have established the service tunnel through a broadcast (MBMS)/multicast (SC-PTM) mode.

The base station receiving the service parses the data packet header of the V2X service, and identifies the service receiving area therein for comparing and storing with the V2X service receiving area (if any) already stored by itself.

If the base station finds that the service receiving area is currently stored (the base station 2 finds that the service receiving area is currently stored as a cell 1, and the base station 3 finds that the service receiving area is currently stored as a cell 2), the service is sent under the base station (the base station 2 sends the service in the cell 1, and the base station 3 sends the service in the cell 2). If the base station finds that the service receiving area is not saved, the service is not transmitted.

In step 93, if the identifier of the service receiving area is unique (for example, ECGI) throughout the network, the base station receiving the V2X service data packet parses the data packet header of the V2X service and identifies the service receiving area therein, if the area is under its own coverage, the V2X service data packet is sent, otherwise, the service data packet is not sent.

That is to say, after receiving a V2X service data packet which is sent by the V2X server through the BM-SC and carries the service receiving area of the first terminal in the packet header, the receiving base station directly sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal in the packet header.

Fourth embodiment

As shown in fig. 11, a fourth embodiment of the present invention provides a method for transmitting V2X service data, including:

step 111, acquiring position information of the first terminal;

step 112, determining a service receiving area of the V2X service data packet of the first terminal according to the location information of the first terminal;

step 113, sending the attribute information of the first terminal to a receiving base station in the service receiving area of the first terminal and sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

In this step 113, the attribute information of the first terminal includes an identifier of the first terminal and a service receiving area, and the implementation manner of this step 113 is as follows: sending the identifier of the first terminal and the service receiving area to a receiving base station in the service receiving area of the first terminal, and sending the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by the V2X server through BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the identifier of the first terminal, the service receiving area, the identifier of the first terminal in the packet header and the service receiving area.

Specifically, as shown in fig. 12, the signaling flow is as follows:

the base station 1 divides the geographical location under its coverage into a plurality of V2X service transmitting areas (each area is represented by latitude and longitude information), and each area corresponds to one or more V2X service receiving areas (the receiving areas are specifically cell lists);

the UE1 sends uplink V2X service data and current geographical location information (current longitude and latitude information of the UE) to the base station 1;

the base station 1 determines a V2X service sending area thereof based on the geographical location information of the sending UE, and further determines a service receiving area thereof (specifically, cell 1 of the base station 2 and cell 2 of the base station 3);

the base station 1 notifies the identity (S-TMSI) of the UE1 and the service receiving area to other relevant base stations (base station 2 and base station 3), wherein the base station 2 is taken as an example in the figure to notify the base station 2 that the service receiving area is cell 1, and the base station 3 is notified that the service receiving area is cell 2;

in addition, the base station 1 transmits the identity of the UE1 and the service reception area to the V2X server as a data header of the V2X service together with the V2X service.

The following examples of possible specific formats of the data packet header are given:

format 1:

Flag 1

Flag 2

Length 1

Length 2

UE ID

Receiving Area

format 2:

Flag 1

Flag 2

Length 1

UE ID

Length 2

Receiving Area

wherein, Flag1 and Flag2 are identification fields, Flag1 indicates whether the data packet header contains a UE ID, Flag2 indicates whether the data packet header contains a Receiving Area (service Receiving Area), Length1 and Length2 are Length fields, Length1 indicates the Length of the UE ID, Length2 indicates the Length of the Receiving Area, the UE ID is a specific UE ID, and the Receiving Area is a specific service Receiving Area (e.g., cell list).

The format of the data packet header in the embodiment of the present invention is not limited to the above listed format, for example, an identification field may also be used to indicate whether the UE ID and the service Receiving Area exist, for example, the identification field may be represented by 2 bits, where one bit indicates whether the UE ID exists and another bit indicates whether the service Receiving Area exists, or the identification field may use different values of 1 bit to indicate whether the UE ID or the service Receiving Area exists, for example, 0 indicates that the packet header contains the UE ID, and 1 indicates that the packet header contains the Receiving Area, or vice versa;

likewise, the length field may also indicate the length of the UE ID and the service receiving area by one length field, for example, by using N bits, where the first N1 bits in the N bits indicate the length of the UE ID and the remaining N2 bits indicate the length of the service receiving area, or by using one length field to set the same length for the UE ID and the service receiving area.

Of course, any other packet header format capable of indicating the UE ID and the service receiving area may implement the formation of the V2X service packet in the above embodiment of the present invention.

The V2X server sends the data packet header of the V2X service to the BM-SC together with the service, and the BM-SC sends the service to all base stations that have established the service tunnel through a broadcast (MBMS)/multicast (SC-PTM) mode.

The base station receiving the service parses the data packet header of the V2X service, and identifies the UE identity (S-TMSI of UE 1) and the service receiving area therein, for comparing with the UE identity and the service receiving area of V2X that is already stored by itself. If the base station finds that the UE identity (S-TMSI of UE1 is already currently saved by base station 2 and base station 3) and the service receiving area (S-TMSI of UE1 is already currently saved by base station 2 and base station 3) are already currently saved (S-TMSI of UE1 is currently saved by base station 2 and service receiving area is currently saved by base station 3 is cell 1), the service is sent under the base station (base station 2 sends service in cell 1 and base station 3 sends service in cell 2). If the base station finds that the UE identity is not stored (except for base station 2 and base station 3), the service is not transmitted.

Fifth embodiment

As shown in fig. 13, a fifth embodiment of the present invention provides a method for transmitting V2X service data, including:

step 131, receiving a V2X service data packet of the first terminal sent in the service receiving area of the first terminal; specifically, a V2X server receives a V2X service data packet of a first terminal sent in a service receiving area of the first terminal through BM-SC;

step 132, according to the information carried in the packet header carried in the V2X service data packet, sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal.

In step 131, the method may further include: receiving attribute information of a first terminal sent by a sending base station where the first terminal is located;

in this case, the step 132 first implementation:

the attribute information of the first terminal comprises an identifier of the first terminal; step 132 may specifically include: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the data.

Second implementation of this step 132:

the attribute information of the first terminal includes: a service receiving area of a first terminal; step 132 may specifically include: if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

Alternatively, if the service receiving area identifier is unique (e.g. ECGI) throughout the network, the base station receiving the V2X service packet parses the packet header of the V2X service and identifies the service receiving area therein, and if the area is under its own coverage, sends the V2X service packet, otherwise, does not send the service packet.

A third implementation of this step 132:

the attribute information of the first terminal includes: an identifier of a first terminal and a service receiving area; step 132 may specifically include: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the service data.

In the above embodiments of the present invention, the base station sends the geographical location information of the UE based on the V2X service, and determines its service receiving area. And the base station informs the receiving base station corresponding to the service receiving area of the identification and/or the service receiving area of the UE. Meanwhile, the base station sends the identity and/or the service receiving area of the UE to the V2X server as a data header of the V2X service together with the V2X service. The V2X server sends the data packet header of the V2X service and the service to the BM-SC, and the BM-SC sends the service to all base stations that have established the service tunnel by broadcast/multicast. The base station receiving the service determines whether the service transmission is required and in which areas by parsing the packet header of the V2X service. Therefore, the V2X service data packets do not need to be broadcast or multicast in all the cells, the overall system capacity, particularly the downlink capacity, can be improved, and the user experience and the system performance are further improved.

Sixth embodiment

A sixth embodiment of the present invention provides a transmission apparatus for V2X service data, including:

a sending module, configured to send V2X service data in a V2X service data packet of a first terminal to at least one second terminal in a service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X traffic data sent by the first terminal.

Wherein the determining module comprises:

The attribute information of the first terminal comprises an identifier of the first terminal; the sending module is specifically configured to: the method comprises the steps of sending an identifier of a first terminal to a receiving base station in a service receiving area of the first terminal, and sending a V2X service data packet carrying the identifier of the first terminal in a packet header to a V2X server, so that after the receiving base station receives a V2X service data packet carrying the identifier of the first terminal in the packet header sent by the V2X server through BM-SC, the V2X service data of the first terminal is sent to at least one second terminal in the service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header.

the sending module is specifically configured to: sending a service receiving area of a first terminal to a receiving base station in the service receiving area of the first terminal, and sending a V2X service data packet carrying the service receiving area of the first terminal in a packet header to a V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the received service receiving area of the first terminal and the service receiving area of the first terminal in the packet header.

the sending module is specifically configured to: sending the identifier of the first terminal and the service receiving area to a receiving base station in the service receiving area of the first terminal, and sending the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by the V2X server through BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the identifier of the first terminal, the service receiving area, the identifier of the first terminal in the packet header and the service receiving area.

The sending module is specifically configured to: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station directly sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal in the packet header, wherein the identifier of the service receiving area is unique throughout the network.

The embodiment of the apparatus corresponds to the method described in the first to fourth embodiments, and therefore all the implementation manners in the above method embodiments are applicable to the embodiment of the apparatus, and the same technical effect can be achieved.

Seventh embodiment

A seventh embodiment of the present invention provides a base station, including:

The base station is further configured to implement the functions that can be implemented by all the modules in the apparatus according to the sixth embodiment, and can achieve the same technical effects as those achieved by the apparatus embodiments.

Eighth embodiment

The eighth embodiment of the present invention further provides a transmission apparatus for V2X service data, including:

The receiving module receives a V2X service data packet of the first terminal sent by the V2X server in the service receiving area of the first terminal through the BM-SC.

The attribute information of the first terminal comprises an identifier of the first terminal; the sending module is specifically configured to: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the data.

Wherein the attribute information of the first terminal includes: a service receiving area of a first terminal; the sending module is specifically configured to: if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

Wherein the attribute information of the first terminal includes: an identifier of a first terminal and a service receiving area; the sending module is specifically configured to: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, transmitting the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not transmitting the service data.

The sending module is specifically configured to: according to the service receiving area of the first terminal carried in the packet header, directly sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending; and the identification of the service receiving area is unique in the whole network.

The embodiment of the apparatus corresponds to the method described in the fifth embodiment, and therefore, all the implementations of the method described in the fifth embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.

Ninth embodiment

A ninth embodiment of the present invention provides a base station, including:

and the transmitter is connected with the receiver and is used for transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet.

The base station is further configured to implement the functions that can be implemented by all the modules of the apparatus according to the eighth embodiment, and can achieve the same technical effects as those achieved by the apparatus embodiments.

While the principles of the invention have been described in connection with specific embodiments thereof, it should be noted that it will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which will be within the skill of those in the art after reading the description of the invention and applying their basic programming skills.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transmitting V2X service data is characterized by comprising the following steps:

acquiring position information of a first terminal;

determining a service receiving area of the first terminal according to the service sending area of the first terminal, wherein one service sending area corresponds to at least one service receiving area;

transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a header and V2X service data sent by the first terminal, where the header carries at least one of an identifier of the first terminal and a service receiving area.

2. The method of claim 1, wherein the step of determining the traffic transmission area of the first terminal according to the location information of the first terminal comprises:

3. The method of claim 1, wherein the step of determining the traffic reception area of the first terminal according to the traffic transmission area of the first terminal comprises:

4. The method for transmitting V2X service data according to claim 1, wherein the determining the service receiving area of the V2X service data packet of the first terminal further comprises:

5. The transmission method of V2X service data according to claim 4, wherein the attribute information of the first terminal includes an identifier of the first terminal; the step of transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area comprises:

sending a V2X service data packet carrying an identifier of a first terminal in a packet header to a V2X server, so that after receiving a V2X service data packet carrying the identifier of the first terminal in the packet header sent by a V2X server through a broadcast multicast service center BM-SC, the receiving base station sends V2X service data of the first terminal to at least one second terminal in a service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header; or

The attribute information of the first terminal comprises an identifier of the first terminal and a service receiving area; the step of transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area comprises: sending a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to a V2X server, so that after receiving a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by a V2X server through a broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the received identifier of the first terminal and the service receiving area, and the identifier of the first terminal and the service receiving area in the packet header; or

The attribute information of the first terminal comprises a service receiving area of the first terminal; the step of transmitting the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal through the receiving base station in the service receiving area comprises: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to the V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through the broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal received by the receiving base station and the service receiving area of the first terminal in the packet header.

6. The method for transmitting V2X service data according to claim 1, wherein the step of transmitting V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal via the receiving base station in the service receiving area comprises:

7. A method for transmitting V2X service data is characterized by comprising the following steps:

receiving a V2X service packet of the first terminal transmitted within a service reception area of the first terminal; the service receiving area of the first terminal is determined by the base station according to the position information of the first terminal, and is determined according to the service sending area of the first terminal; one service sending area corresponds to at least one service receiving area;

and sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in a service receiving area of the first terminal according to information carried in a packet header carried in a V2X service data packet, wherein the packet header carries at least one of an identifier of the first terminal and the service receiving area.

8. The method for transmitting V2X service data according to claim 7, wherein the step of receiving the V2X service data packet of the first terminal transmitted in the service reception area of the first terminal comprises:

9. The method for transmitting V2X service data according to claim 7, wherein before sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet, the method further comprises:

10. The transmission method of V2X service data according to claim 9, wherein the attribute information of the first terminal includes an identifier of the first terminal; the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet includes:

if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in a service receiving area, otherwise, not sending the data; or

The attribute information of the first terminal includes: an identifier of a first terminal and a service receiving area; the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet includes: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data; or

The attribute information of the first terminal includes: a service receiving area of a first terminal; the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet includes: if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

11. The method for transmitting V2X service data according to claim 7, wherein the step of sending the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in the service receiving area of the first terminal according to the information carried in the packet header carried in the V2X service data packet includes:

12. A transmission apparatus for V2X service data, comprising:

a sending module, configured to send a V2X service data packet of a first terminal to at least one second terminal in a service receiving area of the first terminal through a receiving base station in the service receiving area; wherein, the V2X service data packet includes: a packet header and V2X service data sent by a first terminal, where the packet header carries at least one of an identifier of the first terminal and a service receiving area; the determining module comprises:

a second determining unit, configured to determine a service receiving area of the first terminal according to a service sending area of the first terminal, where one service sending area corresponds to at least one service receiving area.

13. The apparatus for transmitting V2X service data according to claim 12, wherein the first determining unit is specifically configured to: determining a service sending area where a first terminal is currently located as a service sending area of the first terminal according to position information of the first terminal in a plurality of service sending areas within a coverage area of a base station accessed by the first terminal; wherein the service transmission area of the first terminal is one of the plurality of service transmission areas.

14. The apparatus for transmitting V2X service data according to claim 12, wherein the second determining unit is specifically configured to: at least one service receiving area within a first distance range from a service sending area of a first terminal is used as a service receiving area of the first terminal from a plurality of service receiving areas within the coverage range of a base station where the first terminal is located; wherein, the first distance range is a transmission distance range of the V2X service data.

15. The apparatus for transmitting V2X service data according to claim 12, wherein the sending module is further configured to send attribute information of the first terminal to a receiving base station in a service receiving area of the first terminal.

16. The apparatus for transmitting V2X service data according to claim 15, wherein the attribute information of the first terminal includes an identifier of the first terminal; the sending module is specifically configured to: sending a V2X service data packet carrying an identifier of a first terminal in a packet header to a V2X server, so that after receiving a V2X service data packet carrying the identifier of the first terminal in the packet header sent by a V2X server through a broadcast multicast service center BM-SC, the receiving base station sends V2X service data of the first terminal to at least one second terminal in a service receiving area according to the received identifier of the first terminal and the identifier of the first terminal carried in the packet header; or

The attribute information of the first terminal comprises an identifier of the first terminal and a service receiving area; the sending module is specifically configured to: sending a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header to a V2X server, so that after receiving a V2X service data packet carrying the identifier of the first terminal and the service receiving area in the packet header sent by a V2X server through a broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the identifier of the first terminal, the service receiving area, the identifier of the first terminal in the packet header and the service receiving area; or

The attribute information of the first terminal comprises a service receiving area of the first terminal; the sending module is specifically configured to: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to the V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through the broadcast multicast service center BM-SC, the receiving base station sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal received by the receiving base station and the service receiving area of the first terminal in the packet header.

17. The apparatus for transmitting V2X service data according to claim 12, wherein the sending module is specifically configured to: sending the V2X service data packet carrying the service receiving area of the first terminal in the packet header to a V2X server, so that after receiving the V2X service data packet carrying the service receiving area of the first terminal in the packet header sent by the V2X server through a broadcast multicast service center BM-SC, the receiving base station directly sends the V2X service data of the first terminal to at least one second terminal in the service receiving area according to the service receiving area of the first terminal in the packet header, wherein the identifier of the service receiving area is unique throughout the network.

18. A transmission apparatus for V2X service data, comprising:

a receiving module, configured to receive a V2X service data packet of a first terminal sent in a service receiving area of the first terminal; the service receiving area of the first terminal is determined by the base station according to the position information of the first terminal, and is determined according to the service sending area of the first terminal; one service sending area corresponds to at least one service receiving area;

a sending module, configured to send, according to information carried in a packet header carried in a V2X service data packet, the V2X service data in the V2X service data packet of the first terminal to at least one second terminal in a service receiving area of the first terminal, where the packet header carries at least one of an identifier of the first terminal and the service receiving area.

19. The apparatus for transmitting V2X service data according to claim 18, wherein the receiving module receives the V2X service data packet of the first terminal sent by the V2X server through the broadcast multicast service center BM-SC in the service receiving area of the first terminal.

20. The apparatus for transmitting V2X service data according to claim 18, wherein the receiving module is further configured to receive attribute information of the first terminal sent by a sending base station where the first terminal is located.

21. The apparatus for transmitting V2X service data according to claim 20, wherein the attribute information of the first terminal includes an identifier of the first terminal; the sending module is specifically configured to:

The attribute information of the first terminal includes: an identifier of a first terminal and a service receiving area; the sending module is specifically configured to: if the identifier of the first terminal carried in the packet header is the same as the received identifier of the first terminal, and the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data; or

The attribute information of the first terminal includes: a service receiving area of a first terminal; the sending module is specifically configured to: if the service receiving area of the first terminal carried in the packet header is the same as the received service receiving area of the first terminal, sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending the service data.

22. The apparatus for transmitting V2X service data according to claim 18, wherein the sending module is specifically configured to: according to the service receiving area of the first terminal carried in the packet header, directly sending the V2X service data of the first terminal to at least one second terminal in the service receiving area, otherwise, not sending; and the identification of the service receiving area is unique in the whole network.