CN107135485B

CN107135485B - Method and device for establishing vehicle-to-everything session request and determining transmission cell

Info

Publication number: CN107135485B
Application number: CN201610109884.3A
Authority: CN
Inventors: 赵亚利; 汪颖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2020-06-12
Anticipated expiration: 2036-02-26
Also published as: WO2017143891A1; CN107135485A

Abstract

The invention discloses a method and a device for establishing a vehicle-to-everything session request and determining a transmission cell, wherein the method comprises the following steps: receiving a session start request message, wherein the session start request message contains a temporary mobile group identifier; determining a temporary mobile group identifier corresponding to a service needing to be subjected to application layer packet analysis; and after analyzing the application layer data packet corresponding to the temporary mobile group identifier which needs to be analyzed, determining a transmission cell corresponding to the application layer data packet corresponding to the temporary mobile group identifier. By adopting the invention, a flexible vehicle and everything message transmission scheme is provided in the semi-static or static configured eMBMS MBSFN area or SC-PTM cell list.

Description

Method and device for establishing vehicle-to-everything session request and determining transmission cell

Technical Field

The invention relates to the technical field of wireless communication, in particular to a method and a device for establishing a vehicle-to-everything session request and determining a transmission cell.

Background

The service transmission of the eMBMS (evolved MBMS; MBMS: Multimedia Broadcast/multicast service) network architecture is based on static or semi-static configured eMBMS sfn area or SC-PTM cell list transmission, and the MBMS and SC-PTM are briefly described below.

MBMS (Multimedia Broadcast Multicast Service)

Fig. 1 is a schematic diagram of an MBMS network architecture of LTE, and as shown in the figure, the MBMS network architecture of LTE (Long Term Evolution) mainly has the following nodes and functions:

1. logical entity

MME (mobility Management entity): mobility management entity

MBMS GW (Gateway) MBMS Gateway

MCE (Multi-cell/multicast Coordination Entity)

eNB (evolved Node B)

2. Interface

M3: session (Session) management related functions such as Session start, Session stop notification are provided between the MME and the MCE.

M2: and functions of session management, MBMS scheduling information transmission and the like are provided between the MCE and the eNB.

M1: MBMS service transmission is provided between an MBMS GW and an eNB.

3. The basic steps of receiving interested MBMS service by a terminal supporting MBMS are as follows:

step 1: reading SIB13 (SIB: System Information Block);

the terminal can obtain the cell MBSFN (Multicast Broadcast single frequency Network) area configuration and MCCH (Multicast control channel) change notification configuration information of the cell by reading SIB 13.

The MBSFN area configuration information includes: the cell belongs to an MBSFN Area identifier (MBSFN Area ID) and MCCH configuration information (including an MCCH modification period, the number of repeated transmissions of MCCH information in the MCCH modification period, MBSFN subframes transmitted by the MCCH in the MCCH modification period, a modulation and coding scheme, etc.) corresponding to each MBSFN Area (one cell belongs to at most 8 MBSFN areas) to which the cell belongs.

The MCCH change notification configuration information includes: MBSFN subframes sent by the MCCH change notification in the MCCH modification period, the number of times of repeated sending of the MCCH change notification in the MCCH modification period and the like.

Step 2: reading the MCCH;

the terminal reads the MCCH at the MCCH modification period boundary, and acquires the MBSFN corresponding to each PMCH (physical multicast Channel) in each MBSFN area;

subframe resources and MBMS session information carried by the subframe resources. One MBSFN area supports 15 PMCHs at most. The terminal can know whether the current cell has the MBMS service interested by the terminal or not through the step. If yes, continuing to step 3;

and step 3: the terminal establishes an MRB (MBMS Radio Bearer);

before the terminal starts receiving the MBMS session of interest, a corresponding MRB needs to be established, and the trigger condition for the MRB establishment may be: the MBMS session starts or the terminal enters the corresponding MBSFN area. When the terminal stops receiving the MBMS session, the MRB is released.

And 4, step 4: the terminal receives the MBMS;

each cell can support 8 MBSFN areas, each MBSFN area can support 15 PMCHs at most, and each PMCH can carry 29 MBMS sessions at most. The terminal can obtain the PMCH corresponding to the interested MBMS session according to a PMCH-InfoList (PMCH Information List) in MBSFNAreaConfiguration (MBSFN area configuration) in the MCCH message, then can determine the MBSFN subframe position corresponding to each MBMS session on the PMCH according to MSI (MCH Scheduling Information; MCH: Multicast Channel, Multicast Channel) sent by a MAC (Media Access Control) layer, and then the terminal can receive the MBMS session on the MBSFN subframe corresponding to the interested MBMS session according to the MSI.

Second, SC-PTM (Single cell point to multipoint)

SC-PTM employs the same network architecture as eMBMS.

The difference is mainly that the eMBMS transmission area is a semi-statically/statically configured MBSFN area. And the SC-PTM transmission area is the SC-PTM Cell list configured by the service server of the core network.

Fig. 2 is a schematic diagram of a configuration process of an SC-PTM Cell list in an LTE system, and please refer to fig. 2 for a configuration manner of the SC-PTM Cell list.

The defects of the prior art are as follows: the service transmission of the eMBMS network architecture is based on static or semi-static configured eMBMS MBSFN area or SC-PTM cell list transmission, that is, any message is transmitted in all cells within the MBSFN area. However, some messages may only be valid in a part of cells included in the eMBMS MBSFN area or the SC-PTMcell list, and the valid areas of messages sent by terminals at different positions in the eMBMS MBSFN area or the SC-PTM cell list are also different. Therefore, the message transmission mode in the semi-statically or statically configured eMBMS MBSFN area or SC-PTM cell list is not efficient, which is not beneficial to improving the overall capacity of the system. These messages, which may be valid only in a portion of the cells, are described below.

Disclosure of Invention

The invention provides a method and a device for establishing a vehicle-to-everything session request and determining a transmission cell, which are used for providing a flexible transmission scheme of V2X messages in a semi-static or static configured eMBMS MBSFN area or SC-PTM cell list.

The embodiment of the invention provides a method for determining a V2X message transmission cell, which comprises the following steps:

receiving a session start request message, wherein the session start request message comprises TMGI;

determining a TMGI corresponding to a service needing to perform application layer packet analysis;

and after analyzing the application layer data packet corresponding to the TMGI which needs to be subjected to the application layer data packet analysis, determining a transmission cell corresponding to the application layer data packet corresponding to the TMGI.

Preferably, the determining the TMGI corresponding to the service requiring the application layer packet parsing includes:

receiving a session start request message carrying TMGI and identification information indicating whether an application layer data packet corresponding to the TMGI needs to be subjected to application layer data packet analysis, and determining the TMGI corresponding to a service needing to be subjected to application layer data packet analysis according to the identification information;

or determining the TMGI corresponding to the service which needs to be subjected to the application layer packet parsing according to the preset TMGI and the identification information of whether the application layer packet corresponding to the TMGI needs to be subjected to the application layer packet parsing.

Preferably, determining the TMGI corresponding to the service requiring the application layer packet parsing according to the preset TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI requires the application layer packet parsing includes:

and determining the TMGI corresponding to the service needing the application layer data packet analysis according to the information whether the TMGI needs the application layer data packet analysis or not, which is determined by OAM pre-configuration or protocol agreement.

Preferably, after parsing the application layer packet corresponding to the TMGI that needs to perform application layer packet parsing, determining the transmission cell of the application layer packet corresponding to the TMGI is the transmission cell for determining the Uu V2X message according to the V2X message type, the area indication information carried in the message, and the location information of the sending UE.

Preferably, the transmission Cell of the V2X message is determined according to the type of the V2X message, the area indication information carried in the message, and the location information of the sending UE, and the transmission Cell is determined according to the UE location information carried in the V2X message, and the association distance in the Cell within the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; or determining the transmission Cell of the V2X message in the cells in the eMBMS SMSFN area or SC-PTM Cell list corresponding to the TMGI according to the UE position information carried in the V2X message and the combination of the associated distance and the associated transmission direction.

Preferably, for the eNB type RSU, the V2X server logical entity inside the eNB type RSU completes the V2X application layer packet parsing, and notifies the lower layer through the inter-layer primitive.

Preferably, further comprising:

when the transmission cell of the Uu V2X message contains the cell belonging to the adjacent base station, the Uu V2X message is informed to the adjacent base station, or the Uu V2X message and the cell belonging to the adjacent base station, which needs to be broadcasted by the message, are informed to the adjacent base station.

Preferably, further comprising:

and broadcasting the V2X message in the transmission cell corresponding to the application layer data packet corresponding to the TMGI.

Preferably, the V2X message broadcast is conducted using eMBMS or SC-PTM.

Preferably, when the V2X message is broadcast in the transmission cell corresponding to the application layer packet corresponding to the TMGI, the resource allocation condition of the MBMSsession corresponding to the V2X message is only included in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

The embodiment of the invention provides a method for establishing a V2X service session request, which comprises the following steps:

requesting a TMGI corresponding to the V2X service from the BM-SC;

receiving the corresponding relation between the V2X service returned by the BM-SC and the TMGI;

determining whether the application layer packet corresponding to the TMGI needs to be analyzed according to whether the application layer packet of the V2X service needs to be analyzed;

and initiating a request message for establishing the V2X service to the BM-SC, wherein the V2X service start request message carries the TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed.

receiving a V2X application server service start request message, wherein the service start request message carries TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and replying the service response message to the V2X application server.

receiving a session start request message sent by the BM-SC, wherein the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and replying a session start response message to the BM-SC.

receiving a session start request message sent by an MBMS GW, wherein the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and replying a session start response message to the MBMS GW.

The embodiment of the invention provides a device for determining a V2X message transmission cell, which comprises the following steps:

a receiving module, configured to receive a session start request message, where the session start request message includes a TMGI;

the TMGI determining module is used for determining a TMGI corresponding to the service needing to be subjected to the application layer data packet analysis;

and the cell determining module is used for determining the transmission cell corresponding to the application layer data packet corresponding to the TMGI after analyzing the application layer data packet corresponding to the TMGI which needs to be analyzed.

Preferably, the TMGI determining module is further configured to, when determining a TMGI corresponding to a service that needs to perform application layer packet parsing, determine, according to the identification information, a TMGI corresponding to the service that needs to perform application layer packet parsing after receiving a session start request message carrying the TMGI and identification information indicating whether the application layer packet corresponding to the TMGI needs to perform application layer packet parsing; or determining the TMGI corresponding to the service which needs to be subjected to the application layer packet parsing according to the preset TMGI and the identification information of whether the application layer packet corresponding to the TMGI needs to be subjected to the application layer packet parsing.

Preferably, the TMGI determining module is further configured to determine, when determining the TMGI corresponding to the service that needs to perform the application layer packet parsing according to the preset TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI needs to perform the application layer packet parsing, the TMGI corresponding to the service that needs to perform the application layer packet parsing according to the information indicating whether the TMGI that is determined by OAM preconfiguration or by protocol agreement needs to perform the application layer packet parsing.

Preferably, the cell determining module is further configured to determine the transmission cell according to the type of the V2X message, the area indication information carried in the message, and the location information of the sending UE after parsing the application layer packet corresponding to the TMGI that needs to perform application layer packet parsing.

Preferably, the Cell determining module is further configured to determine a transmission Cell in a Cell within the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the association distance; or, determining a transmission Cell in cells in the eMBMS MBSFN area or the SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the combination of the association distance and the association transmission direction.

Preferably, the cell determining module is further configured to complete the parsing of the V2X application layer packet by handing over a V2X server logical entity inside the eNB type RSU when the cell determining module is located in the eNB type RSU, and notify the lower layer through an inter-layer primitive.

Preferably, further comprising:

and a neighboring base station notification module, configured to notify the neighboring base station of the Uu V2X message when the transmission cell of the Uu V2X message includes a cell belonging to the neighboring base station, or notify the neighboring base station of the Uu V2X message and the cell belonging to the neighboring base station to which the message needs to be broadcasted.

Preferably, further comprising:

and a transmission module, configured to perform V2X message broadcast in a transmission cell corresponding to the application layer packet corresponding to the TMGI.

Preferably, the transmission module is further configured to broadcast the V2X message using eMBMS or SC-PTM.

Preferably, the transmission module is further configured to, when performing V2X message broadcasting in the transmission cell corresponding to the application layer packet corresponding to the TMGI, include the resource allocation condition of the MBMS session corresponding to the V2X message only in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

The embodiment of the invention provides a device for establishing a V2X service session request, which comprises:

the V2X application server request module is used for requesting the TMGI corresponding to the V2X service from the BM-SC;

the V2X application server receiving module is used for receiving the corresponding relation between the V2X service returned by the BM-SC and the TMGI;

the V2X application server parsing module is configured to determine, according to whether an application layer packet of the V2X service needs to be parsed, whether an application layer packet corresponding to the TMGI needs to be parsed, or not, identification information of the application layer packet;

the V2X application server request module is further configured to initiate a request message for establishing a V2X service to the BM-SC, where the V2X service start request message carries the TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be parsed.

a BM-SC receiving module, configured to receive a V2X application server service start request message, where the service start request message carries a TMGI and identification information indicating whether an application layer packet corresponding to the TMGI needs to be analyzed;

and the BM-SC response module is used for replying the service response message to the V2X application server.

the MBMS GW receiving module is used for receiving a session start request message sent by the BM-SC, wherein the session start request message carries TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and the MBMS GW response module is used for replying a session starting response message to the BM-SC.

an MME receiving module, configured to receive a session start request message sent by an MBMS GW, where the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and the MME response module is used for replying a session starting response message to the MBMS GW.

The invention has the following beneficial effects:

in the technical solution provided in the embodiment of the present invention, the session start request message carries the TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI needs to be analyzed, or the TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI needs to be analyzed are preset in the base station, so that the base station can analyze the V2X application layer packet that needs to be analyzed, and further determine the transmission cell of the Uu V2X message corresponding to the TMGI. Further, the V2X message broadcast may be performed in the transmission cell of the Uu V2X message corresponding to the TMGI. Therefore, even under the eMBMS network architecture, the V2X message transmission can be carried out in the transmission cell of the V2X message only, and all cells in the MBSFN area are not required to be transmitted, so that the flexible V2X message transmission scheme can be provided in the eMBMS SFN area or SC-PTM cell list which is semi-static or static configured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of an MBMS network architecture of LTE in the background art;

FIG. 2 is a diagram illustrating a configuration process of an SC-PTM Cell list in an LTE system in the background art;

FIG. 3 is a schematic diagram of a V2X network architecture 1 according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a V2X network architecture 2 according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a V2X network architecture 3 according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a CAM message structure according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a DENM message structure in accordance with an embodiment of the present invention;

fig. 8 is a schematic flowchart of an implementation of a method for establishing a V2X service session request on a V2X application server according to an embodiment of the present invention;

fig. 9 is a schematic flow chart of an implementation of a method for establishing a V2X service session request on a BM-SC in the embodiment of the present invention;

fig. 10 is a schematic flowchart illustrating an implementation process of a method for establishing a V2X service session request on an MBMS GW according to an embodiment of the present invention;

fig. 11 is a schematic flowchart of an implementation of a method for establishing a V2X service session request on an MME according to an embodiment of the present invention;

fig. 12 is a schematic flowchart of an embodiment of a method for determining a Uu V2X message transmission cell on an eNB according to the present invention;

fig. 13 is a schematic flow chart illustrating an implementation process of notifying a base station of analyzing an application layer packet through a Session Start Request message in the embodiment of the present invention;

fig. 14 is a schematic flow chart illustrating an implementation procedure of notifying a base station to perform application layer packet parsing through pre-configuration in an embodiment of the present invention;

fig. 15 is a schematic structural diagram of an apparatus for determining a V2X message transmission cell according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of an apparatus 1 for establishing a V2X service session request according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a device 2 for establishing a V2X service session request according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of an apparatus 3 for establishing a V2X service session request according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of the apparatus 4 for establishing a V2X service session request according to an embodiment of the present invention;

FIG. 20 is a diagram illustrating a base station structure according to an embodiment of the present invention;

fig. 21 is a schematic structural diagram of a V2X application server in the embodiment of the present invention;

FIG. 22 is a schematic diagram of a BM-SC structure according to an embodiment of the present invention;

FIG. 23 is a diagram of an MBMS GW structure in accordance with an embodiment of the present invention;

FIG. 24 is a schematic view of an MME structure in the embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

The inventor notices in the process of invention that:

the service transmission of the eMBMS network architecture is based on static or semi-static configured eMBMS MBSFN area or SC-PTM cell list transmission, that is, any message is transmitted in all cells within the MBSFN area. However, some messages may only be valid in a part of cells included in the eMBMS MBSFN area or the SC-PTM cell list, and the valid areas of messages sent by terminals at different positions in the eMBMS MBSFN area or the SC-PTM cell list are also different. Therefore, the message transmission mode in the semi-statically or statically configured eMBMS MBSFN area or SC-PTM cell list is not efficient, which is not beneficial to improving the overall capacity of the system. These messages, which may be valid only in a portion of the cells, are described below.

V2X (vehicle-to-Everything) communication is a popular topic in the communication field at present, and is formally established in 2015 at 3GPP RAN #67 conferences. V2X communication mainly contains three aspects:

(1) V2V (Vechile-to-Vechile, car-to-car): communication between OBUs (On Board Unit) On the vehicle.

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

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

For V2X, if V and X use the communication manner via the network shown in the above (1), it can be referred to as V2X communication via the network (hereinafter, simply referred to as Uu V2X); if V and X use the direct communication mode described in the above (2), it can be referred to as V2X direct communication (hereinafter referred to as PC5V2X for short).

The two communication modes of PC5V2X and Uu V2X have advantages and disadvantages respectively. The advantages of PC5V2X are: the time delay is short, and the transmission efficiency is high; but its reliability may be deteriorated as the distance between the terminals increases or an obstacle blocks. In contrast, Uu V2X has a relatively long delay and low transmission efficiency, but its reliability is relatively guaranteed.

The defects of the prior art are as follows: the service transmission of the eMBMS network architecture is based on static or semi-static configured eMBMS MBSFN area or SC-PTM cell list transmission, that is, any message sent by the V2X application server to the BM-SC is transmitted by all cells in the MBSFN area. However, considering that the V2X message is different from the conventional MBMS service, the V2X message may be valid only in a partial cell included in the eMBMS MBSFN area or SC-PTM cell list, and the valid areas of the V2X messages sent by terminals at different positions in the eMBMS MBSFN area or SC-PTM cell list are also different. Therefore, how to realize flexible Uu V2X message transmission in the semi-static or static configured eMBMS MBSFN area or SC-PTM cell list needs to be considered to improve the overall capacity of the system.

Based on this, the present invention provides a Uu V2X message transmission cell determination scheme, that is, an eNB determines a Uu V2X message transmission cell through application layer packet parsing, in response to an application layer packet corresponding to a specific TMGI (Temporary Mobile Group Identity) needing to perform an application layer packet parsing function. The following description is made.

First, the environment, V2X message, and interface to be implemented will be described.

Currently, Uu V2X supports three network architectures as follows:

framework 1:

fig. 3 is a schematic diagram of a V2X network architecture 1 that fully multiplexes existing eMBMS/SC-PTM network architectures, as shown.

Framework 2:

fig. 4 is a schematic diagram of a V2X network architecture 2, which features sinking MBMS-related user plane nodes to an eNB, also referred to as eNB type RSU, for the purpose of reducing user plane latency.

Framework 3:

fig. 5 is a schematic diagram of a V2X network architecture 3, which is characterized in that MBMS GW, BM-SC are deployed locally as shown.

V2X message:

according to the U.S. and European intelligent traffic standards, V2X supports two message types: CAM (cooperative alert Message) and DENM (centralized environmental notification Message). For CAM only a single hop is supported, for DENM multiple hops can be supported. The sending vehicle may choose whether to use CAM or DENM when sending the V2X message depending on the transmission range required for the message. Selecting the CAM if the transmission is only required in the single-hop range; otherwise, the DENM message is selected. Fig. 6 is a schematic diagram of a CAM message structure, fig. 7 is a schematic diagram of a DENM message structure, and please refer to fig. 6 and fig. 7 for the CAM message structure and the DENM message structure.

X2 port:

the X2 interface is an interface between base stations, and through the related procedures of the X2 interface, the base stations can exchange information, such as X2SETUP request (X2 interface establishment request) or X2SETUP RESPONSE (X2 interface establishment RESPONSE) or ENB configuration update (ENB configuration update).

In the specific implementation description process, the implementation of the V2X application server, BM-SC (broadcast multicast service center), MBMS GW (Gateway), MME (mobility management Entity), and base station side will be described, and then an example of the implementation of these devices in cooperation will be given to better understand the implementation of the scheme provided in the embodiment of the present invention. However, such a description does not mean that these devices must be implemented in cooperation or separately, and in fact, when these devices are implemented separately, they each solve the problem on their own side, and when these devices are used in combination, a better technical effect is obtained.

Fig. 8 is a schematic flow chart of an implementation of a method for establishing a V2X service session request on a V2X application server, as shown in the figure, the method may include:

step 801, requesting a TMGI corresponding to the V2X service from the BM-SC;

step 802, receiving the corresponding relation between the V2X service returned by the BM-SC and the TMGI;

step 803, determining whether the application layer packet corresponding to the TMGI needs to be analyzed according to whether the application layer packet of the V2X service needs to be analyzed;

step 804, initiating a request message for establishing a V2X service to the BM-SC, where the V2X service start request message carries the TMGI and the identification information of whether the application layer packet corresponding to the TMGI needs to be parsed.

Fig. 9 is a schematic implementation flow diagram of a method for establishing a V2X service session request on a BM-SC, as shown in the figure, the method may include:

step 901, receiving a service start request message of the V2X application server, where the service start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

and step 902, replying the service response message to the V2X application server.

Fig. 10 is a schematic flowchart of an implementation process of a method for establishing a V2X service session request on an MBMS GW, where as shown in the figure, the method may include:

step 1001, receiving a session start request message sent by the BM-SC, where the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

step 1002, replying a session start response message to the BM-SC.

Fig. 11 is a schematic implementation flow diagram of a method for establishing a V2X service session request on an MME, as shown in the figure, the method may include:

step 1101, receiving a session start request message sent by an MBMS GW, where the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

step 1102, replying a session start response message to the MBMS GW.

Fig. 12 is a flowchart illustrating an implementation of a method for determining a Uu V2X message transmission cell on an eNB, where as shown, the method may include:

step 1201, receiving a session start request message, which includes a TMGI;

step 1202, determining a TMGI corresponding to a service needing to perform application layer data packet analysis;

step 1203, after analyzing the application layer packet corresponding to the TMGI that needs to be subjected to the application layer packet analysis, determining a transmission cell corresponding to the application layer packet corresponding to the TMGI.

In the implementation, the step 1202 of determining the TMGI corresponding to the service that needs to perform application layer packet parsing may include:

Specifically, when the TMGI of the V2X application layer packet to be parsed is preset in the base station, the existing MBMS session establishment procedure may be used, that is, in the session request procedure initiated by the V2X server, after receiving the V2X application layer packet, the TMGI corresponding to the service that needs to perform application layer packet parsing is determined according to the preset TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI needs to perform application layer packet parsing. The implementation of this method will be further described in embodiment 2, and the implementation of the TMGI method that receives a session start request message carrying TMGI and identification information indicating whether an application layer packet corresponding to the TMGI needs to be analyzed by the application layer packet or not and determines, according to the identification information, a service that needs to be analyzed by the application layer packet will be described in embodiment 1.

In the implementation, the method can further comprise the following steps:

and 1204, broadcasting the V2X message in the transmission cell corresponding to the application layer packet corresponding to the TMGI.

In particular, the V2X message broadcast may be conducted using eMBMS or SC-PTM.

Specifically, when the V2X message is broadcast in the transmission cell corresponding to the application layer packet corresponding to the TMGI, the resource allocation status of the MBMSsession corresponding to the V2X message is included only in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

The TMGI in this application will be referred to as a specific TMGI. In practice, the particular TMGI refers to some or all of the TMGIs corresponding to the Uu V2X message. The specific TMGI may be pre-configured to the base station or notified to the base station by adding identification information in an MBMS Session Start Request message.

After analyzing the application layer packet corresponding to the TMGI that needs to perform application layer packet analysis, determining the transmission cell of the application layer packet corresponding to the TMGI, which may determine the transmission cell of the Uu V2X message according to the V2X message type, the area indication information carried in the message, and the location information of the sending UE.

In the implementation, when the transmission cell of the Uu V2X message includes a cell belonging to a neighboring base station, the method may further include: and informing the adjacent base station of the Uu V2X message or informing the adjacent base station of the Uu V2X message and the cell belonging to the adjacent base station, which needs to be broadcasted by the message.

Specifically, for the Uu V2X network architecture 2/3, if the base station determines that the Uu V2X message transmission cell includes a cell under a neighboring base station, the base station needs to notify the neighboring base station of the V2X message or the V2X message and a cell list of which cells under the neighboring base station the message is to broadcast through an X2 interface or a newly introduced inter-base station interface. If the adjacent base station Uu V2X message is informed, the adjacent base station can calculate the cell broadcast in itself; the Uu V2X is informed about the cells belonging to the neighbouring base station to which the message needs to be broadcast, and the neighbouring base station does not need to calculate in which cells it needs to broadcast itself.

In the implementation, when the V2X message is broadcast in the transmission cell corresponding to the application layer packet corresponding to the TMGI, the resource allocation status of the MBMSsession corresponding to the V2X message is included only in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

Specifically, the base station includes the resource allocation condition of the MBMS session corresponding to the Uu V2X message only in the MSI sent by the Cell that needs to transmit the Uu V2X message in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; the MSI sent by other cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI does not need to include the resource allocation condition of the MBMS session corresponding to the Uu V2X message.

In implementation, for the eNB type RSU, the V2X server logical entity inside the eNB type RSU completes the parsing of the V2X application layer packet, and notifies the lower layer through the inter-layer primitive.

Specifically, for architecture 2, if V2X server is embedded in eNB (i.e. eNB type RSU), the application layer packet parsing function may be performed by V2X server logical entity embedded in eNB. And interacting among various logical nodes inside the eNB type RSU through the primitive.

The following is illustrated by way of example.

Example 1:

fig. 13 is a schematic flow chart of an implementation process of notifying the base station of performing application layer packet parsing through a Session Start Request message, and this example will describe an implementation of notifying the base station of a TMGI to perform application layer packet parsing through a Session Start Request message, which may specifically include the following steps as shown in the figure:

step 1301 and 1302: the V2X service server requests the BM-SC to obtain the corresponding relation between the V2X service and the TMGI.

Step 1303: the V2X service server maintains the correspondence between TMGI and V2X services. The V2X services may all use the same TMGI or use different TMGIs depending on priority.

Steps 1304a, 1304 b: the V2X service server interacts with the BM-SC to request the start of V2X service transmission. The V2X session transmission start request may carry the TMGI or the TMGI and the application layer packet parsing identification information corresponding to the V2X session.

Step 1305a, 1305 b: and interacting a session start request and a response message between the BM-SC and the MBMS GW, wherein the session start request message needs to carry application layer data packet analysis identification information for TMGI which needs to carry out application layer data packet analysis.

Steps 1306a, 1306 b: the MBMS GW and the MME interact conversation starting request and response messages, and for TMGI needing to analyze the application layer data packet, the conversation starting request message needs to carry application layer data packet analysis identification information.

Step 1307a, 1307 b: and interacting a session start request and a response message between the MME and the MCE, wherein for the TMGI needing to analyze the application layer data packet, the session start request message needs to carry application layer data packet analysis identification information.

Step 1308: and the base station determines which data packets corresponding to the TMGI need to be subjected to application layer data packet analysis.

And the base station judges whether the application layer data packet corresponding to the TMGI needs to be analyzed or not according to the TMGI carried in the session start request message and the analysis identification information of the application layer data packet. Specifically, for example, if the application layer packet parsing identifier information corresponding to the TMGI is set to 1, it indicates that packet parsing needs to be performed on the application layer packet corresponding to the TMGI; otherwise, the application layer packet is not parsed.

Step 1309: and the eNB joins the IP multicast group corresponding to the TMGI.

Steps 1310, 1311: the eNB receives V2X data from the V2X traffic server.

Step 1312: and according to the judgment result in the step 1308, performing application layer data analysis on the data packet corresponding to the TMGI which needs to perform application layer data packet analysis, and determining the Uu V2X message transmission cell.

In the implementation, after parsing the application layer packet corresponding to the TMGI that needs to perform application layer packet parsing, the transmission cell of the application layer packet corresponding to the TMGI may be determined according to the type of the V2X message, the area indication information carried in the message, and the location information of the sending UE, to determine the transmission cell of the Uu V2X message.

Specifically, the transmission Cell of the Uu V2X message is determined according to the Uu V2X message type, the area indication information carried in the message, and the location information of the sending UE, and the transmission Cell of the V2X message is determined in the Cell in the eMBMS MBSFN area or the SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the relevanceDistance (association distance), or according to the UE location information carried in the V2X message and the combination of the relevanceDistance and the relevanceTrafficDirection (association transmission direction).

Specifically, taking the DENM message as an example, the base station determines which cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI are Uu V2X message transmission cells according to the UE location information, the reservancedistance, or the combination of the reservancedistance and the reservancetrafficdirection carried in the DENM message.

For Uu V2X network architecture 2, if the base station determines that the Uu V2X message transmission cell includes a cell under a neighboring base station, the base station may notify the neighboring base station of the V2X message or the V2X message and a cell list of which cells under the neighboring base station the cell is to broadcast through an X2 interface or a newly introduced inter-base station interface.

Step 1313: the Uu V2X messaging cell determined at step 1312 broadcasts the V2X message using eMBMS or SC-PTM.

Specifically, the base station includes the resource allocation condition of the MBMS session corresponding to the Uu V2X message in the MSI sent by the Cell that needs to transmit the Uu V2X message in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; the MSI sent by other cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI does not need to include the resource allocation condition of the MBMS session corresponding to the Uu V2X message.

Example 2:

fig. 14 is a schematic flow chart of an implementation process of notifying the base station to perform application layer packet parsing through preconfiguration, and this example will describe an implementation of the TMGI notifying the base station to perform application layer packet parsing through preconfiguration, and specifically as shown in the figure, the implementation may include the following steps:

step 1401-1402: the V2X service server requests the BM-SC to obtain the corresponding relation between the V2X service and the TMGI.

Step 1403: the V2X service server maintains the correspondence between TMGI and V2X services.

Steps 1404a, 1404 b: the V2X service server interacts with the BM-SC to request the start of V2X service transmission. The V2X session transmission start request may carry the TMGI corresponding to the V2X session.

Steps 1405a, 1405 b: and interacting a session starting request and a response message between the BM-SC and the MBMS GW.

Steps 1406a, 1406 b: and interacting session starting request and response messages between the MBMS GW and the MME.

Steps 1407a, 1407 b: and interacting session starting request and response messages between the MME and the MCE.

Step 1408: and the base station determines which data packets corresponding to the TMGI need to be subjected to the application layer packet analysis according to the pre-configured TMGI corresponding to the Uu V2X message to be subjected to the application layer packet analysis.

In implementation, determining, according to a preset TMGI and identification information indicating whether an application layer packet corresponding to the TMGI needs to be analyzed, a TMGI corresponding to a service that needs to be analyzed, includes:

Specifically, the preset may be preconfigured through OAM (Operations, Administration, and Maintenance), or may be agreed in the protocol.

In a specific implementation, the base station receives the session start request message, extracts the TMGI therein, and then compares the TMGI with a pre-configured or protocol-agreed TMGI to be subjected to application layer packet parsing. If the packet is included in a TMGI list to be subjected to application layer packet analysis, the packet analysis is required to be performed on a subsequent service data packet corresponding to the TMGI; otherwise, it is not needed.

Step 1409: and the eNB joins the IP multicast group corresponding to the TMGI.

Step 1410, 1411: the eNB receives V2X data from the V2X traffic server group.

Step 1412: and according to the judgment result of the step 1408, performing application layer data analysis on the data packet corresponding to the TMGI which needs to perform application layer data packet analysis, and determining the Uu V2X message transmission cell. The specific basis for determining the Uu V2X message transmission cell includes: and the base station sends the position information of the UE according to the type of the V2X message, the area indication information carried in the message and the position information of the UE.

Specifically, taking the DENM message as an example, the base station determines which cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI are cells that need to receive the V2X message according to the UE location information, the reservationdistance, or the combination of the reservationdistance and the reservationtrafficdirection carried in the DENM message.

For Uu V2X network architecture 2, if the base station determines that the Uu V2X message transmission cell includes cells under the neighboring base station, the base station needs to notify the neighboring base station of the V2X message or the V2X message and a cell list of which cells under the neighboring base station the cell is to broadcast through an X2 interface or a newly introduced inter-base station interface.

Step 1413: the Uu V2X messaging cell determined at step 1412 broadcasts a V2X message using eMBMS or SC-PTM.

The base station only contains the resource allocation condition of the MBMS session corresponding to the Uu V2X message in the MSI sent by the Cell needing to transmit the Uu V2X message in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; the MSI sent by other cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI does not need to include the resource allocation condition of the MBMS session corresponding to the Uu V2X message.

Example 3:

this example illustrates an implementation on the eNB type RSU, that is, for the eNB type RSU, the V2X server logical entity inside the eNB type RSU completes the V2X application layer packet parsing, and notifies the lower layer through the inter-layer primitive.

For architecture fig. 2, eNB, V2X server, BM-SC and MBMS GW all change from a logical entity to an internal logical function of eNB type RSU entity due to the sinking of V2X server and MBMS related user plane nodes. The logic entities interactively use a primitive mode inside the eNB type RSU.

Under the special architecture, the eNB internal logic function of the eNB type RSU entity does not have a service layer packet analysis function, and the application layer packet analysis function is realized by the V2X server logic function of the eNB type RSU entity. And carrying the V2X application layer data packet, the sending UE position information corresponding to the data packet and the transmission cell indication information by the V2X server logic function through the primitive. These information are transferred to the eNB logical function of the eNB type RSU entity through the BM-SC and MBMS GW logical functions of the eNB type RSU entity through primitives.

And the eNB logic function of the eNB type RSU entity does not need to analyze a service layer data packet any more, and directly determines a Uu V2X message transmission cell according to the information carried by the received primitive.

The eNB logic function of the eNB type RSU entity, if it is determined that the Uu V2X message transmission cell includes a cell under a neighbor base station, the base station needs to inform the neighbor base station of the V2X message or the V2X message and a list of cells under the neighbor base station which the cell is to broadcast through an X2 interface or a newly introduced inter-base station interface.

The eNB logic function of the eNB type RSU entity only contains the resource allocation condition of the MBMS session corresponding to the Uu V2X message in the MSI sent by the Cell needing to transmit the Uu V2X message in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; the MSI sent by other cells in the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI does not need to include the resource allocation condition of the MBMS session corresponding to the Uu V2X message.

Based on the same inventive concept, the embodiment of the present invention further provides a device for establishing a V2X service session request on the V2X application server, a device for establishing a V2X service session request on the BM-SC, a device for establishing a V2X service session request on the MBMS GW, a device for establishing a V2X service session request on the MME, and a device for determining a Uu V2X message transmission cell on the eNB, the principles of these devices for solving the problems are similar to the method for establishing the V2X service session request on the V2X application server, the implementation flow diagram of the method for establishing the V2X service session request on the BM-SC, the method for establishing the V2X service session request on the MBMS GW, the method for establishing the V2X service session request on the MME, and the method for determining the Uu V2X message transmission cell on the eNB, so the implementation of these devices may refer to the implementation of the methods, and the repeated parts are not described again.

Fig. 15 is a schematic structural diagram of an apparatus for determining a V2X message transmission cell, as shown, including:

a receiving module 1501, configured to receive a session start request message, where the session start request message includes a TMGI;

a TMGI determining module 1502 configured to determine a TMGI corresponding to a service that needs to perform application layer packet parsing;

the cell determining module 1503 is configured to determine a transmission cell corresponding to an application layer packet corresponding to a TMGI that needs to perform application layer packet analysis after analyzing the application layer packet corresponding to the TMGI.

In implementation, the TMGI determining module is further configured to, when determining a TMGI corresponding to a service that needs to perform application layer packet parsing, determine, according to identification information, a TMGI corresponding to the service that needs to perform application layer packet parsing after receiving a session start request message carrying the TMGI and identification information indicating whether the application layer packet corresponding to the TMGI needs to perform application layer packet parsing; or determining the TMGI corresponding to the service which needs to be subjected to the application layer packet parsing according to the preset TMGI and the identification information of whether the application layer packet corresponding to the TMGI needs to be subjected to the application layer packet parsing.

In an implementation, the TMGI determining module is further configured to determine, when determining, according to the preset TMGI and the identification information indicating whether the application layer packet corresponding to the TMGI needs to be subjected to application layer packet parsing, the TMGI corresponding to the service that needs to be subjected to application layer packet parsing according to the information indicating whether the TMGI that is preconfigured by OAM or determined by a protocol agreement needs to be subjected to application layer packet parsing.

In an implementation, the cell determining module is further configured to determine the transmission cell according to the type of the V2X message, the area indication information carried in the message, and the location information of the sending UE after parsing the application layer packet corresponding to the TMGI that needs to perform application layer packet parsing.

In implementation, the Cell determining module is further configured to determine a transmission Cell in a Cell within the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the association distance; or, determining a transmission Cell in cells in the eMBMS MBSFN area or the SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the combination of the association distance and the association transmission direction.

In an implementation, the cell determining module is further configured to, when the cell is located in the eNB type RSU, submit the V2X server logical entity inside the eNB type RSU to complete the parsing of the V2X application layer packet, and notify the lower layer through an inter-layer primitive.

In an implementation, the method further comprises the following steps:

a neighboring base station notifying module 1504, configured to notify the neighboring base station of the Uu V2X message when the transmission cell of the Uu V2X message includes a cell belonging to the neighboring base station, or notify the neighboring base station of the Uu V2X message and the cell belonging to the neighboring base station to which the message needs to be broadcasted.

In an implementation, the method further comprises the following steps:

a transmission module 1505 is used for performing V2X message broadcasting in the transmission cell corresponding to the application layer packet corresponding to the TMGI.

In practice, the transmission module is further configured to broadcast the V2X message using eMBMS or SC-PTM.

In an implementation, the transmission module is further configured to, when performing V2X message broadcasting in the transmission cell corresponding to the application layer packet corresponding to the TMGI, include the resource allocation condition of the MBMS session corresponding to the V2X message only in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

Fig. 16 is a schematic structural diagram of an apparatus 1 for establishing a V2X service session request, as shown in the figure, including:

a V2X application server request module 1601, configured to request a TMGI corresponding to the V2X service from the BM-SC;

a V2X application server receiving module 1602, configured to receive a correspondence between a V2X service returned by the BM-SC and the TMGI;

a V2X application server parsing module 1603, configured to determine, according to whether an application layer packet of the V2X service needs to be parsed, whether an application layer packet corresponding to the TMGI needs to be parsed, or not, identification information of the application layer packet;

Fig. 17 is a schematic structural diagram of a device 2 for establishing a V2X service session request, as shown in the figure, including:

a BM-SC receiving module 1701, configured to receive a service start request message of the V2X application server, where the service start request message carries a TMGI and identification information indicating whether an application layer packet corresponding to the TMGI needs to be analyzed by the application layer packet;

a BM-SC response module 1702 for replying to the V2X application server with the service response message.

Fig. 18 is a schematic structural diagram of a device 3 for establishing a V2X service session request, as shown in the figure, including:

an MBMS GW receiving module 1801, configured to receive a session start request message sent by a BM-SC, where the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

MBMS GW response module 1802 configured to reply to the session start response message to the BM-SC.

Fig. 19 is a schematic structural diagram of the apparatus 4 for establishing a V2X service session request, as shown in the figure, including:

an MME receiving module 1901, configured to receive a session start request message sent by an MBMS GW, where the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

MME responding module 1902, configured to reply to the MBMS GW with a session start response message.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 20 is a schematic structural diagram of a base station, as shown in the figure, the base station includes:

the processor 2000, which is used to read the program in the memory 2020, executes the following processes:

after analyzing an application layer data packet corresponding to a TMGI (TMGI) which needs to be subjected to application layer data packet analysis, determining a transmission cell corresponding to the application layer data packet corresponding to the TMGI;

a transceiver 2010 for transmitting data under control of the processor 2000, performing the following processes:

a session start request message is received including the TMGI.

In an implementation, the determining the TMGI corresponding to the service that needs to perform application layer packet parsing includes:

In the implementation, after analyzing the application layer packet corresponding to the TMGI that needs to perform application layer packet analysis, the transmission cell of the application layer packet corresponding to the TMGI is determined, and the transmission cell of the Uu V2X message is determined according to the V2X message type, the area indication information carried in the message, and the location information of the sending UE.

In implementation, the transmission Cell of the V2X message is determined according to the type of the V2X message, the area indication information carried in the message, and the location information of the sending UE, and the transmission Cell is determined according to the UE location information carried in the V2X message and the association distance in the Cell within the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; or determining the transmission Cell of the V2X message in the cells in the eMBMS SMSFN area or SC-PTM Cell list corresponding to the TMGI according to the UE position information carried in the V2X message and the combination of the associated distance and the associated transmission direction.

In an implementation, the method further comprises the following steps:

In practice, the V2X message broadcast is conducted using eMBMS or SC-PTM.

In fig. 20, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 2000, and various circuits, represented by memory 2020, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2010 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 2000 is responsible for managing the bus architecture and general processing, and the memory 2020 may store data used by the processor 2000 in performing operations.

Fig. 21 is a schematic structural diagram of the V2X application server, and as shown in the figure, the V2X application server includes:

the processor 2100, which is used to read the program in the memory 2120, executes the following processes:

a transceiver 2110 for transmitting data under the control of the processor 2100, performing the following processes:

requesting a TMGI corresponding to the V2X service from the BM-SC;

In FIG. 21, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 2100, and various circuits of the memory, represented by the memory 2120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2110 may be a plurality of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 2100 is responsible for managing the bus architecture and general processing, and the memory 2120 may store data used by the processor 2100 in performing operations.

Fig. 22 is a schematic structural diagram of a BM-SC, and as shown in the figure, the BM-SC includes:

the processor 2200 is configured to read the program stored in the memory 2220, and execute the following processes:

processing the data according to the requirements of the transceiver;

a transceiver 2210 for transmitting data under control of the processor 2200, performing the following processes:

and replying the service response message to the V2X application server.

In fig. 22, among other things, the bus architecture may include any number of interconnected buses and bridges with various circuits being linked together, particularly one or more processors represented by processor 2200 and memory represented by memory 2220. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2210 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 2200 is responsible for managing the bus architecture and general processing, and the memory 2220 may store data used by the processor 2200 in performing operations.

Fig. 23 is a schematic structural diagram of an MBMS GW, and as shown in the figure, the MBMS GW includes:

a processor 2300 for reading the program in the memory 2320, and performing the following processes:

processing the data according to the requirements of the transceiver;

a transceiver 2310 for transmitting data under the control of processor 2300, performing the following processes:

and replying a session start response message to the BM-SC.

In FIG. 23, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 2300, and various circuits, represented by memory 2320, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2310 may be a plurality of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 2300 is responsible for managing the bus architecture and general processing, and the memory 2320 may store data used by the processor 2300 in performing operations.

Fig. 24 is a schematic structural diagram of an MME, where the MME includes:

the processor 2400, configured to read the program in the memory 2420, performs the following processes:

processing the data according to the requirements of the transceiver;

a transceiver 2410 for transmitting data under the control of the processor 2400 to perform the following processes:

and replying a session start response message to the MBMS GW.

Where in fig. 24, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 2400, and various circuits, represented by the memory 2420, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 2410 may be a plurality of elements including a transmitter and a transceiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 2400 is responsible for managing a bus architecture and general processing, and the memory 2420 may store data used by the processor 2400 in performing operations.

In summary, the embodiment of the present invention provides a Uu V2X message transmission cell determination scheme. That is, the eNB needs to perform an application layer packet parsing function for an application layer packet corresponding to a specific TMGI, and determines the Uu V2X message transmission cell through the application layer packet parsing.

Also specifically provided are: the specific TMGI is pre-configured to the base station or is notified to the base station by adding identification information in the MBMS Session Start Request message. The particular TMGI refers to a portion or all of the TMGI corresponding to the Uu V2X message.

The base station determines the Uu V2X message transmission cell through the analysis layer application data packet as follows: and determining a transmission cell of the Uu V2X message according to the type of the Uu V2X message, the area indication information carried in the message and the position information of the sending UE.

The broadcast of the V2X message in the 3GPP network can be realized through the scheme.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method of determining a vehicle-to-anything V2X messaging cell, comprising:

receiving a session start request message, wherein the session start request message comprises a Temporary Mobile Group Identity (TMGI);

determining a TMGI corresponding to a service which needs to be subjected to application layer packet analysis according to the session start request message carrying identification information whether the application layer packet corresponding to the TMGI needs to be subjected to application layer packet analysis or according to a preset TMGI and the identification information whether the application layer packet corresponding to the TMGI needs to be subjected to application layer packet analysis;

and after analyzing the application layer data packet corresponding to the TMGI which needs to be subjected to the application layer data packet analysis, determining a transmission cell of the Uu V2X message corresponding to the application layer data packet corresponding to the TMGI.

2. The method of claim 1, wherein determining the TMGI corresponding to the service requiring application layer packet parsing according to a preset TMGI and identification information indicating whether the application layer packet corresponding to the TMGI requires application layer packet parsing comprises:

and determining the TMGI corresponding to the service needing the application layer packet analysis according to the information whether the TMGI pre-configured by the operation, administration and maintenance OAM or determined by the protocol convention needs the application layer packet analysis.

3. The method of claim 1, wherein after parsing the application layer packet corresponding to the TMGI requiring application layer packet parsing, determining the transmission cell of the application layer packet corresponding to the TMGI determines the transmission cell of the Uu V2X message according to the V2X message type, the zone indication information carried in the message, and the location information of the sending UE.

4. The method of claim 3, wherein determining the transmission Cell for the V2X message based on the V2X message type, the area indication information carried in the message, and the location information of the sending user equipment UE is based on the UE location information carried in the V2X message and the associated distance to determine the transmission Cell for the V2X message in the cells within the eMBMS MBSFN area or SC-PTM Cell list corresponding to the TMGI; or determining the transmission cell of the V2X message in the cells in the eMBMS MBSFN area or SC-PTM celllistcorresponding to the TMGI according to the UE position information carried in the V2X message and the combination of the association distance and the association transmission direction.

5. The method of claim 1, wherein for the eNB type RSU, the V2X server logical entity inside the eNBtype RSU completes the parsing of the application layer packet and informs the lower layer through the inter-layer primitive.

6. The method of claim 1, further comprising:

7. The method of any of claims 1 to 6, further comprising:

8. The method of claim 7, wherein the V2X message broadcast is conducted using evolved multimedia broadcast/multicast service (eMBMS) or single cell point-to-multipoint (SC-PTM).

9. The method of claim 7, wherein when the V2X message is broadcasted in the transmission cell corresponding to the application layer packet corresponding to the TMGI, the resource allocation status of the MBMS session corresponding to the V2X message is only included in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI.

10. A method for establishing a V2X service session request, comprising:

requesting a TMGI corresponding to the V2X service from the BM-SC;

initiating a request message for establishing a V2X service start to a BM-SC, wherein the V2X service start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

the identification information is used for indicating the base station to analyze the application layer data packet corresponding to the TMGI according to the identification information indicating whether the application layer data packet corresponding to the TMGI needs to be analyzed.

11. A method for establishing a V2X service session request, comprising:

replying a service response message to the V2X application server;

12. A method for establishing a V2X service session request, comprising:

receiving a session start request message sent by a broadcast multicast service center BM-SC, wherein the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

replying a session start response message to the BM-SC;

13. A method for establishing a V2X service session request, comprising:

receiving a session start request message sent by a MBMS gateway GW, wherein the session start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed;

replying a session start response message to the MBMS GW;

14. An apparatus for determining a V2X messaging cell, comprising:

and a cell determining module, configured to determine a transmission cell of the Uu V2X message corresponding to the application layer packet corresponding to the TMGI after analyzing the application layer packet corresponding to the TMGI that needs to be subjected to the application layer packet analysis according to the session start request message carrying identification information whether the application layer packet corresponding to the TMGI needs to be subjected to the application layer packet analysis or according to a preset TMGI and identification information whether the application layer packet corresponding to the TMGI needs to be subjected to the application layer packet analysis.

15. The apparatus of claim 14, wherein the TMGI determining module is further configured to determine the TMGI corresponding to the service requiring the application layer packet parsing according to information about whether the TMGI determined by OAM preconfiguration or protocol agreement requires the application layer packet parsing, when determining the TMGI corresponding to the service requiring the application layer packet parsing according to a preset TMGI and identification information about whether the application layer packet corresponding to the TMGI requires the application layer packet parsing.

16. The apparatus of claim 14, wherein the cell determining module is further configured to determine the transmission cell according to the type of the V2X message, the zone indication information carried in the message, and the location information of the sending UE after parsing the application layer packet corresponding to the TMGI that needs to be parsed.

17. The apparatus of claim 16, wherein the cell determining module is further configured to determine a transmitting cell among cells within the eMBMS MBSFN area or SC-PTM celllisti corresponding to the TMGI according to the UE location information carried in the V2X message and the associated distance; or, determining a transmission Cell in cells in the eMBMS MBSFN area or the SC-PTM Cell list corresponding to the TMGI according to the UE location information carried in the V2X message and the combination of the association distance and the association transmission direction.

18. The apparatus of claim 14, wherein the cell determination module is further configured to complete application layer packet parsing by a V2X server logical entity inside the eNB type RSU and notify the lower layer through an inter-layer primitive when located in the eNB type RSU.

19. The apparatus of claim 14, further comprising:

20. The apparatus of any of claims 14 to 19, further comprising:

21. The apparatus of claim 20, wherein the transmission module is further for V2X message broadcasting using eMBMS or SC-PTM.

22. The apparatus of claim 20, wherein the transmission module is further configured to include the resource allocation of the MBMS session corresponding to the V2X message in the MSI sent by the transmission cell corresponding to the application layer packet corresponding to the TMGI when the V2X message is broadcast in the transmission cell corresponding to the application layer packet corresponding to the TMGI.

23. An apparatus for establishing a V2X service session request, comprising:

the V2X application server request module is further configured to initiate a request message for establishing a V2X service to the BM-SC, where the V2X service start request message carries a TMGI and identification information of whether an application layer packet corresponding to the TMGI needs to be analyzed by the application layer packet;

24. An apparatus for establishing a V2X service session request, comprising:

BM-SC response module, which is used to reply service response message to V2X application server;

25. An apparatus for establishing a V2X service session request, comprising:

MBMS GW response module, which is used for replying conversation start response message to BM-SC;

26. An apparatus for establishing a V2X service session request, comprising:

MME response module, which is used to reply the session start response message to MBMS GW;