CN107005816A - A kind of processing method and processing device of group service - Google Patents

Abstract

The present invention provides a kind of processing method and processing device of group service, and methods described includes：The ability that cluster communication service application server GCS AS receive the UE that user equipment (UE) is sent is indicated and positional information, wherein, the ability indicates that characterizing the UE supports multicast transmission, and the positional information includes the evolution wireless access network Cell Global Identity ECGI of the UE regions；The GCS AS are indicated and the positional information according to the ability, determine activating multimedia broadcast/multicast service MBMS carrying services；The GCS AS send request message to BroadCast MultiCast Service center BM SC, and the request message is used to ask the BM SC to set up MBMS carryings for the UE.

Description

Method and device for processing cluster services technical field

The present invention relates to the field of communication technologies, in particular to a method and device for processing trunking services.

Background technique

The trunking communication system is a special communication system with scheduling capability, which provides one-way call capability and allows UE (User Equipment) to communicate with one or more other users. With the increasingly rich mobile services, text, pictures, and videos have become one of the content of trunking communication, and the traditional trunking communication system can no longer meet the needs of communication. Moreover, with the development of Long Term Evolution (LTE) technology, it is possible to implement rich trunking services on public LTE networks. Cluster communication in LTE can use unicast and multicast methods for information transmission. Among them, the multicast transmission mode of the cluster communication adopts the existing MBMS (Multimedia Broadcast/Multicast Service) technology for information transmission.

In the existing MBMS technology, the MBMS coverage area is planned to be multiple MBMS service areas, MBMS network elements are deployed in each MBMS service area, and MBMS bearers are established between MBMS network elements. The cluster communication application service server GCS AS (Group Communication Service Application Server) can send data to the UE through MBMS bearer, where the E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) cell global identifier ECGI (E-UTRAN Cell Global Identifier) is The global cell identity of the evolved radio access network in the area where the UE is located is used to identify the location information of the UE. The MBMS service areas are statically configured, that is, the MBMS service areas in which different MBMS services are played are all pre-configured. The service areas of different MBMS services may be different or the same. Therefore, if the UE wants to receive a specific MBMS service, the area where the UE is located should be pre-planned within the MBMS service area of the MBMS service.

However, due to the mobility of the UE, there are cases where the UE moves to an unplanned specific MBMS service. In the service area, the UE cannot receive specific MBMS services. Because the area where the UE is located is not planned to play specific MBMS services, there is no MBMS bearer in the area where the UE is located, and the GCS AS cannot initiate the corresponding MBMS bearer activation.

To sum up, the defect of the existing MBMS technology is that the GCS AS cannot dynamically establish MBMS bearers according to the actual situation of the UE.

Contents of the invention

Embodiments of the present invention provide a method and device for processing trunking services, which are used to dynamically establish MBMS bearers according to actual conditions of UEs.

The first aspect of the embodiment of the present invention provides a cluster service processing method, including:

The trunked communication service application server GCS AS receives the capability indication and location information of the UE sent by the user equipment UE, wherein the capability indication indicates that the UE supports multicast transmission, and the location information includes the evolution of the area where the UE is located. Radio access network global cell identity ECGI;

The GCS AS determines to activate the multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information;

The GCS AS sends a request message to the broadcast-multicast service center BM-SC, and the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information, including:

The GCS AS determines that the UE supports multicast transmission according to the capability indication and the location information, and the number of UEs having the same ECGI as that of the area where the UE is located reaches a preset threshold, then determines to activate the MBMS bearer service .

With reference to the first aspect or the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the method further includes:

The GCS AS determines the generation method of the security key, the security key is used to encrypt the data transmitted between the GCS AS and the UE, and the generation method of the security key includes the GCS AS A security key is generated, or the BM-SC generates a security key.

In combination with the second possible implementation of the first aspect, in the third possible implementation of the first aspect, when the GCS AS determines that the security key is generated by the GCS AS , the method also includes:

The GCS AS generates a security key;

Then the request message sent by the GCS AS to the BM-SC includes the security key generated by the GCS AS.

In combination with the second possible implementation of the first aspect, in the fourth possible implementation of the first aspect, when the GCS AS determines that the security key is generated by the BM-SC When, the method also includes:

The GCS AS receives the response message sent by the BM-SC, and the response message includes the security key generated by the BM-SC.

With reference to the first aspect or the first possible implementation of the first aspect, in a fifth possible implementation of the first aspect, the request message includes the ECGI of the area where the UE is located, so that the BM-SC Determine the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located and select an MBMS network element according to the MBMS SAI, where the MBMS network element is used to establish an MBMS bearer for the UE.

In combination with the first possible implementation of the first aspect, in the sixth possible implementation of the first aspect, the GCS AS sends a request message to the BM-SC, including:

The GCS AS determines the MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located;

The GCS AS sends a request message including the MBMS SAI corresponding to the area where the UE is located to the BM-SC.

In combination with the first aspect or the first possible implementation of the first aspect, in the seventh possible implementation of the first aspect, the GCS AS sends a request message to the BM-SC, specifically:

The GCS AS sends to the BM-SC a request message including the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located, so that the BM-SC selects an MBMS network element according to the TAI, wherein , the MBMS network element is used to establish an MBMS bearer for the UE.

In combination with the first aspect, the first possible implementation of the first aspect, or the sixth possible implementation of the first aspect, in the eighth possible implementation of the first aspect, the GCS AS receives the The capability indication and location information of the UE, specifically:

The GCS AS receives the capability indication and location information of the UE reported by the UE through the GCl interface signaling of the application layer; or

The GCS AS receives the capability indication and location information of the UE reported by the UE through the Session Initiation Protocol SIP process; or

The GCS AS interacts with the policy and charging function entity PCRF through the Rx interface to obtain the location information of the UE.

The second aspect of the embodiment of the present invention provides a cluster service processing method, including:

The broadcast-multicast service center BM-SC receives the request message sent by the cluster communication service application server GCS AS, and the request message is determined by the GCS AS according to the capability indication and location information of the UE sent by the user equipment UE. A message sent to the BM-SC after the multimedia broadcast/multicast service MBMS bearer service, the request message is used to request the BM-SC to establish an MBMS bearer for the UE;

The BM-SC allocates MBMS system resources for MBMS service transmission according to the request message;

The BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE.

With reference to the second aspect, in the first possible implementation of the second aspect, the request message includes the Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the user equipment UE is located; then the BM-SC uses the The allocated MBMS system resource establishes an MBMS bearer for the UE, including:

The BM-SC determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI contained in the request message;

The BM-SC selects an MBMS network element according to the MBMS SAI, and uses the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the request message contains the MBMS SAI corresponding to the area where the UE is located; then the BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE, including:

The BM-SC selects an MBMS network element according to the MBMS SAI, and uses the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

With reference to the second aspect, in a third possible implementation of the second aspect, the request message includes the tracking area identifier TAI of the area where the UE is located and the global cell identity of the evolved radio access network ECGI of the area where the UE is located; The BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE, including:

The BM-SC obtains configuration information according to the TAI contained in the request message, and the configuration information includes the correspondence between the TAI and MBMS network elements;

The BM-SC selects an MBMS network element according to the TAI and the configuration information, and uses the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

With reference to the second aspect, the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the request message includes a security key key, the security key is used to encrypt the data transmitted between the GCS AS and the UE.

With reference to the second aspect, the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the BM-SC receives After the request message sent by the GCS AS, the method also includes:

The BM-SC sends a response message to the GCS AS, the response message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.

The third aspect of the embodiment of the present invention provides a method for processing cluster services, including:

The user equipment UE reports the capability indication and location information of the UE to the trunked communication service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information; Wherein, the capability indicator characterizes the The UE supports multicast transmission, and the location information includes an Evolved Radio Access Network Global Cell Identity (ECGI) of an area where the UE is located.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the UE reports the capability indication and location information of the UE to the GCS AS, including:

The UE reports the capability indication and the location information of the UE to the GCS AS through the GC1 interface signaling of the application layer; or

The UE reports the capability indication and location information of the UE to the GCS AS through a session initiation protocol SIP process.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the location information further includes a tracking area identifier TAI of an area where the UE is located.

The fourth aspect of the embodiment of the present invention provides a cluster communication service application server GCS AS, including:

The first receiving unit is configured to receive the capability indication and location information of the UE sent by the user equipment UE, wherein the capability indication indicates that the UE supports multicast transmission, and the location information includes the evolution of the area where the UE is located Radio access network global cell identity ECGI;

A processing unit, configured to determine to activate a multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information;

A sending unit, configured to send a request message to a broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the processing unit is specifically configured to:

According to the capability indication and the location information, it is determined that the UE supports multicast transmission, and the number of UEs having the same ECGI as that of the area where the UE is located reaches a preset threshold, then it is determined to activate the MBMS bearer service.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the processing unit is further configured to:

Determine the generation method of the security key, the security key is used to encrypt the data transmitted between the GCS AS and the UE, the generation method of the security key includes generating the security key by the GCS AS , or the BM-SC generates a security key.

In combination with the second possible implementation of the fourth aspect, in the third possible implementation of the fourth aspect, the GCS AS further includes:

A generating unit configured to generate a security key when the GCS AS determines that the security key is generated by the GCS AS in a manner to generate a security key;

The sending unit is specifically configured to: send the request message including the security key generated by the GCS AS to the BM-SC.

In combination with the second possible implementation of the fourth aspect, in the fourth possible implementation of the fourth aspect, the GCS AS further includes:

The second receiving unit is configured to receive a response message sent by the BM-SC, where the response message includes the security key generated by the BM-SC.

With reference to the fourth aspect or the first possible implementation of the fourth aspect, in a fifth possible implementation of the fourth aspect, the request message includes the ECGI of the area where the UE is located, so that the BM-SC Determine the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located and select an MBMS network element according to the MBMS SAI, where the MBMS network element is used to establish an MBMS bearer for the UE.

With reference to the first possible implementation of the fourth aspect, in a sixth possible implementation of the fourth aspect, the sending unit is specifically configured to:

According to the ECGI of the area where the UE is located, determine the MBMS SAI corresponding to the area where the UE is located; and send a request message including the MBMS SAI corresponding to the area where the UE is located to the BM-SC.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the sending unit is specifically configured to:

Send a request message including the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located to the BM-SC, so that the BM-SC selects MBMS based on the TAI A network element, wherein the MBMS network element is used to establish an MBMS bearer for the UE.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, or the sixth possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the first receiving unit specifically Used for:

receiving the capability indication and location information of the UE reported by the UE through GCl interface signaling of the application layer; or

receiving the capability indication and location information of the UE reported by the UE through a session initiation protocol SIP process; or

Interact with the policy and charging function entity PCRF through the Rx interface to obtain the location information of the UE.

The fifth aspect of the embodiment of the present invention provides a broadcast-multicast service center BM-SC, including:

The receiving unit is configured to receive a request message sent by the trunked communication service application server GCS AS, where the request message is determined by the GCS AS to activate the multimedia broadcast/multiple A message sent to the BM-SC after broadcast service MBMS bearer service, the request message is used to request the BM-SC to establish an MBMS bearer for the UE;

An allocating unit, configured to allocate MBMS system resources for MBMS service transmission according to the request message;

An establishing unit, configured to use the allocated MBMS system resources to establish an MBMS bearer for the UE.

With reference to the fifth aspect, in the first possible implementation of the fifth aspect, the request message includes the Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the user equipment UE is located; then the BM-SC further includes:

A mapping unit, configured to determine the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI included in the request message;

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the establishing unit is configured to: select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system The system resource establishes an MBMS bearer for the UE between the selected MBMS network elements.

The request message includes the MBMS SAI corresponding to the area where the UE is located; then the establishment unit is specifically used for:

Select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

With reference to the fifth aspect, in a third possible implementation of the fifth aspect, the request message includes the tracking area identifier TAI of the area where the UE is located and the global cell identity of the evolved radio access network ECGI of the area where the UE is located; The BM-SC also includes:

An obtaining unit, configured to obtain configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and MBMS network elements;

The establishing unit is configured to: select an MBMS network element according to the TAI and the configuration information, and use the allocated MBMS system resources to establish the MBMS bearer between the selected MBMS network elements.

Combining the fifth aspect, the first possible implementation manner of the fifth aspect to the third possible implementation manner of the fifth aspect, in the fourth possible implementation manner of the fifth aspect, the request message includes a security key key, the security key is used to encrypt the data transmitted between the GCS AS and the UE.

Combining the fifth aspect, the first possible implementation manner of the fifth aspect to the third possible implementation manner of the fifth aspect, in the fifth possible implementation manner of the fifth aspect, the BM-SC further includes :

A sending unit, configured to send a response message to the GCS AS after the BM-SC receives the request message sent by the GCS AS, the response message includes a security key, and the security key is used to authenticate the GCS Data transmitted between the AS and the UE is encrypted.

A sixth aspect of the embodiments of the present invention provides a user equipment UE, including:

A processing unit, configured to report the capability indication and location information of the UE to the trunked communication service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS bearer according to the capability indication and the location information service; wherein the capability indication characterizes the The UE supports multicast transmission, and the location information includes an Evolved Radio Access Network Global Cell Identity (ECGI) of an area where the UE is located.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the processing unit is specifically configured to:

Reporting the capability indication of the UE and the location information to the GCS AS through the G1 interface signaling of the application layer; or

Report the capability indication and location information of the UE to the GCS AS through the session initiation protocol SIP process.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the location information further includes a tracking area identifier TAI of an area where the UE is located.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

In the embodiment of the present invention, the trunked communication service application server GCS AS receives the UE's own capability indication and location information sent by the user equipment UE, and then determines to activate the multimedia broadcast/multicast service MBMS bearer according to the capability indication and the location information. The service finally sends a request message to the broadcast-multicast service center BM-SC, and the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

Therefore, in the embodiment of the present invention, the GCS AS can dynamically activate the MBMS bearer according to the capability indication and location information of the user equipment UE, and then activate the MBMS bearer service for the UE in a specific location area where the UE is located, so as to ensure that the MBMS service is provided for the UE.

Description of drawings

FIG. 1 is a possible communication system architecture applicable to the cluster service processing method in the embodiment of the present invention;

Fig. 2 is the flowchart of the processing method of the cluster business of GCS AS side in the embodiment of the present invention;

FIG. 3 is a flowchart of a method for processing cluster services on the BM-SC side in an embodiment of the present invention;

Fig. 4 is the process of establishing MBMS bearer in the embodiment of the present invention, the communication between each network element mutual graph;

FIG. 5 is another interaction diagram between network elements during the process of establishing an MBMS bearer in an embodiment of the present invention;

FIG. 6 is another interaction diagram between network elements during the process of establishing an MBMS bearer in an embodiment of the present invention;

FIG. 7 is an interaction diagram between network elements during the process of generating a security key in an embodiment of the present invention;

FIG. 8 is a flowchart of a method for processing cluster services on the UE side in an embodiment of the present invention;

Fig. 9 is the functional block diagram of GCS AS in the embodiment of the present invention;

Fig. 10 is the hardware block diagram of GCS AS in the embodiment of the present invention;

FIG. 11 is a functional block diagram of the BM-SC in the embodiment of the present invention;

FIG. 12 is a hardware block diagram of a BM-SC in an embodiment of the present invention;

FIG. 13 is a functional block diagram of a UE in an embodiment of the present invention;

FIG. 14 is a hardware block diagram of a UE in an embodiment of the present invention.

detailed description

Embodiments of the present invention provide a method and device for processing trunking services, which are used to dynamically establish MBMS bearers according to actual conditions of UEs.

In the embodiment of the present invention, the trunked communication service application server GCS AS receives the UE's own capability indication and location information sent by the user equipment UE, and then determines to activate the multimedia broadcast/multicast service MBMS bearer according to the capability indication and the location information. The service finally sends a request message to the broadcast-multicast service center BM-SC, and the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

Therefore, in the embodiment of the present invention, the GCS AS can dynamically activate the MBMS bearer according to the capability indication and location information of the user equipment UE, and then activate the MBMS bearer service for the UE in a specific location area where the UE is located, so as to ensure that the MBMS service is provided for the UE.

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative efforts all belong to the protection scope of the present invention.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

This embodiment provides a method for processing cluster services. Please refer to FIG. 1. FIG. 1 is a possible communication system architecture applicable to the method for processing cluster services in the embodiment of the present invention. The communication system architecture includes: User equipment UE (User Equipment), used for receiving and activating multimedia broadcast/multicast service MBMS (multimedia broadcast/multicast service) service, UE has a capability indication, and the capability indication indicates whether the UE supports multicast transmission, and the UE also has location information, The location information includes the global cell identity ECGI of the evolved radio access network in the area where the UE is located, and the location information may also include the TAI (Tracking Area Identity) of the area where the UE is located; the eNB is mainly used for the establishment and release of radio bearers, and the transmission of user data. Broadcast and other functions; multi-cell/multicast coordination entity MCE (Multi-cell/multicast Coordination Entity), mainly used for scheduling and management of wireless resources in the industry, that is, to select appropriate resources (including frequency, time and other parameters) for multimedia broadcasting MBSFN (Multimedia Broadcast multicast service Single Frequency Network) transmission, in order to use resources reasonably and efficiently; MME Mobility Management Entity (Mobility Management Entity) mainly participates in MBMS session management and other functions; broadcast-multicast service The center BM-SC (Broadcast-Multicast Service Centre) BM-SC belongs to the service layer network element and is the entrance of the content provider. It provides service aggregation and transmission, user authorization (key generation and transmission), and MBMS service bearer Establishment and initiation, initiation of session control, etc., and can also realize synchronization between BM-SC and eNB; MBMS gateway MBMS GW (MBMS Getway), MBMS GW as a node between BM-SC and eNB, is the network The access gateway is responsible for processing user data-related messages and session-related signaling; the cluster communication application service server GCS AS (Group Communication Service Application Server), GCS AS is a third-party application server, mainly responsible for the management of group members Management, activation of MBMS initiation and other functions; the policy and charging function entity PCRF (Policy and charge rule function) is mainly responsible for charging policy generation and other functions.

As shown in Figure 1, UE and eNB are connected through Uu interface, UE and GCS AS are connected through CG1 interface; eNB and MCE are connected through M2 interface, eNB and MBMS GW are connected through M1 interface, and eNB and MME are connected through S1-MME interface; MCE is connected to MME through M3 interface; MME is connected to MBMS GW through Sm interface; MBMS GW is connected through SGmb interface and SGimb interface; BM-SC is connected to GCS AS through MB2-C and MB2-U; GCS AS is connected to PCRF through Rx interface connect.

The following first introduces the processing method of the cluster service in the embodiment of the present invention from the GCS AS side, please refer to Fig. 2, and Fig. 2 is a flow chart of the processing method of the cluster service on the GCS AS side in the embodiment of the present invention, the method includes:

Step 101: The trunked communication service application server GCS AS receives the capability indication and location information of the UE sent by the user equipment UE, wherein the capability indication indicates that the UE supports multicast transmission, and the location information includes the location information of the UE. Regional Evolved Radio Access Network global cell identity ECGI;

Step 102: The GCS AS determines to activate the multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information;

Step 103: The GCS AS sends a request message to the broadcast-multicast service center BM-SC, and the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

In the embodiment of the present invention, the capability indication of the UE indicates that the UE supports multicast transmission, the location information of the UE includes the Evolved Radio Access Network global cell identifier ECGI of the area where the UE is located, and the location information of the UE may also include the tracking area identifier of the area where the UE is located Tai. Wherein, the ECGI identifies the location area where the UE is located, that is, the broadcast area of the MBMS service after the MBMS session is established in the BM-SC. The ECGI is also used to instruct the MCE to select an eNB according to the ECGI contained in the session start request, and then send a session start request to the selected eNB. For details, please refer to the relevant description in Figure 6 below.

In the embodiment of the present invention, in step 101, the GCS AS receives the capability indication and location information of the user equipment UE, including:

The GCS AS receives the capability indication and location information of the UE reported by the UE through the GCl interface signaling of the application layer; or

The GCS AS receives the capability indication and location information of the UE reported by the UE through the Session Initiation Protocol SIP process; or

The GCS AS interacts with the policy and charging function entity PCRF through the Rx interface to obtain the location information of the UE.

Specifically, the GCS AS receives the UE's capability indication and location information in the following four ways:

The first implementation method is: the UE reports the UE's own capability indication and location information to the GCS AS through the GC1 interface signaling of the application layer, and the GCS receives the capability indication and location information reported by the UE.

The second implementation method is: when the UE registers the group, it reports its own capability indication and location information to the GCS AS through the Session Initiation Protocol (SIP) process, and the GCS receives the capability indication and location information reported by the UE.

When the GCS AS obtains the UE's capability indication and location information through the above-mentioned first and second implementation methods, the UE may only report the UE's own capability indication to the GCS AS, but does not report the UE's own capability indication to the GCS AS. location information. In this case, the GCS AS can receive the UE's capability indication and location information through the third and fourth implementations described below:

The third implementation method is: the UE reports the UE's own capability indication to the GCS AS through the GC1 interface of the application layer, the GCS receives the capability indication reported by the UE, and the GCS AS interacts with the PCRF through the Rx interface to obtain the location information of the UE.

The fourth implementation method: when the UE registers the group, it reports its own capability indication to the GCS AS through the SIP (Session Initiation Protocol) process, the GCS receives the capability indication reported by the UE, and the GCS AS interacts with the PCRF through the Rx interface to obtain UE location information.

After step 101 is executed, after the GCS AS receives the capability indication and location information of the UE, step 102 and step 103 may be executed. Wherein, step 102 is specifically implemented in the specific implementation process as follows:

The GCS AS determines, according to the capability indication and the location information, that the UE supports multicast transmission, and that the number of UEs having the same ECGI as that of the area where the UE is located reaches a preset threshold, Then it is determined to activate the MBMS bearer service.

Specifically, the GCS AS receives capability indications and location information of multiple UEs, and then stores the ECGI of the area where any UE that supports multicast transmission among the multiple UEs is located (for the convenience of description, the location of any UE that supports multicast transmission is The ECGI of the area is called the first ECGI) is compared with the ECGI of other UEs supporting multicast transmission, and it is judged whether the number of UEs having the same UE as the first ECGI in other UEs supporting multicast transmission reaches a preset threshold, and if the judgment result If yes, determine to activate the MBMS bearer service, send a request message to the BM-SC, and the BM-SC establishes an MBMS bearer for the UE with the first ECGI according to the received request message. Generally speaking, the preset threshold can be set according to the actual utilization efficiency of the network, for example, the preset threshold can be 8.

For example, the GCS AS receives capability indications and location information of four UEs, UE1, UE2, UE3, and UE4, where the capability indications of UE1, UE2, UE3, and UE4 indicate that UE1, UE2, UE3, and UE4 support multicast transmission , the location information of UE1, UE2, UE3, and UE4 indicates that the ECGI of UE1, UE2, UE3, and UE4 are 1, 1, 1, and 2 respectively, then the GCS AS assigns any one of the 4 UEs that supports multicast transmission as the location of UE1 Compare the ECGI of the area with the ECGI of other UEs that support multicast transmission, that is, compare the ECGI of UE1 with the ECGI of UE2, UE3, and UE4, and determine whether the number of UEs in UE2, UE3, and UE4 that have the same ECGI as UE1 When the preset threshold is reached, since the ECGI of UE1 is 1, and the ECGIs of UE2, UE3, and UE4 are 1, 1, and 2 respectively, the UEs with the same ECGI as UE1 are UE2 and UE3, and the number is 2. Suppose the preset threshold is 2 , then the preset threshold is reached, the GCS AS determines to activate the MBMS bearer service, and sends a request message to the BM-SC, and the BM-SC establishes MBMS bearers for UE1, UE2 and UE3 according to the received request message.

Another example: GCS AS compares the ECGI of any one of the four UEs that supports multicast transmission, such as the area where UE4 is located, with the ECGI of other UEs that support multicast transmission, that is, the ECGI of UE4 is compared with the ECGI of UE2, UE3 and UE1 ECGI is compared to determine whether the number of UEs with the same ECGI as UE4 among UE2, UE3, and UE1 reaches the preset threshold. Since the ECGI of UE4 is 2, the ECGIs of UE2, UE3, and UE1 are 1, 1, and 1 respectively. There is no UE with the same ECGI as UE4, the number is 0, assuming the preset threshold is 2, if the preset threshold is not reached, GCS AS will not activate MBMS The bearer service will not send a request message to the BM-SC, and the BM-SC will not establish an MBMS bearer for UE4 according to the received request message.

In the embodiment of the present invention, the content contained in the request message sent by the GCS AS to the BM-SC may be different. The request message may include the ECGI of the area where the UE is located, or the MBMS SAI generated by mapping the ECGI of the area where the UE is located by the GCS AS, or the ECGI of the area where the UE is located and the tracking of the area where the UE is located The area identifies TAI.

In the embodiment of the present invention, according to the content contained in the request message sent by the GCS AS to the BM-SC, the GCS AS sends the request message to the BM-SC. Specifically, there are the following three implementation modes:

The first implementation mode is: the GCS AS sends a request message including the ECGI of the area where the UE is located to the BM-SC, and the request message includes the ECGI of the area where the UE is located, so that the BM-SC can The ECGI of the area where the UE is located determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located and selects an MBMS network element according to the MBMS SAI, wherein the MBMS network element is used to establish an MBMS bearer for the UE.

The second implementation manner is: the GCS AS determines the MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located;

The GCS AS sends a request message including the MBMS SAI corresponding to the area where the UE is located to the BM-SC.

The third embodiment is: the GCS AS sends to the BM-SC a request message including the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located, so that the BM-SC can The TAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.

Specifically, after the GCS AS receives the capability indication and location information of the UE, since the location information includes the ECGI of the area where the UE is located, the GCS AS can directly send a request message to the BM-SC without any processing. After receiving the ECGI, the BM-SC maps the ECGI to SAI. After receiving the request message, the BM-SC selects an MBMS network element according to the SAI in the request message, and uses the MBMS network element to establish an MBMS bearer for the UE. Specifically, how does the BM-SC select MBMS network elements according to the SAI, and use the MBMS network elements to establish MBMS bearers for UEs? The prior art will not be described in detail here.

Or after the GCS AS receives the UE's capability indication and location information, since the location information includes the ECGI of the area where the UE is located, the GCS AS can map the ECGI to SAI, and then send a request message to the BM-SC, which contains the The GCS AS maps the UE's ECGI to the MBMS SAI generated. After receiving the request message, the BM-SC selects the MBMS network element according to the SAI in the request message, and uses the MBMS network element to establish the MBMS bearer for the UE. Specifically, how the BM-SC selects the MBMS network element according to the SAI, and uses the MBMS network element to establish the MBMS bearer for the UE is a prior art, and will not be repeated here.

Or after the GCS AS receives the capability indication and location information of the UE, since the location information includes not only the ECGI of the area where the UE is located, but also the tracking area identifier TAI of the area where the UE is located, the GCS AS can directly report to the BM without any processing. -SC sends a request message, which includes ECGI and TAI of UE. After receiving ECGI and TAI, BM-SC selects MBMS network element according to TAI, selects eNB according to ECGI, and uses MBMS network element to establish MBMS bearer for UE. Specifically, how the BM-SC selects the MBMS network element according to the TAI, selects the eNB according to the ECGI, and uses the MBMS network element to establish an MBMS bearer for the UE. Please refer to the following description of the trunking service processing method provided by the embodiment of the present invention from the BM-SC side. Not detailed here.

In the embodiment of the present invention, the GCS AS can also perform the following steps:

The GCS AS determines the generation method of the security key, the security key is used to encrypt the data transmitted between the GCS AS and the UE, and the generation method of the security key includes the GCS AS A security key is generated, or the BM-SC generates a security key.

When the GCS AS determines that the security key is generated by the GCS AS, the method further includes:

The GCS AS generates a security key;

Then the request message sent by the GCS AS to the BM-SC includes the security key generated by the GCS AS.

When the GCS AS determines that the security key is generated by the BM-SC, the method further includes:

The GCS AS receives the response message sent by the BM-SC, and the response message includes the security key generated by the BM-SC.

Among them, the moment when the GCS AS determines the generation method of the security key is not limited, it can be after the GCS AS receives the UE's own capability indication and location information sent by the UE, or after the GCS AS sends a request message to the BM-SC.

Specifically, after the BM-SC establishes the MBMS bearer, data transmission can be performed between the GCS AS and the UE through the established MBMS bearer. Considering the security of data transmission, it is necessary to use a security key pair between the GCS AS and the UE. The data transmitted between them is encrypted, and the specific content of the security key can be: service key identification MSK ID (MBMS Service Key Identifier), MBMS service key MSK (MBMS Service Key) and key validity period (key validation), etc. The specific security key generation method is determined by the GCS AS.

Generally speaking, the GCS AS decides whether to generate the security key by the GCS AS or by the BM-SC according to the security requirements for the data transmitted between the GCS AS and the UE. For example, when the security requirements are not high, the security key can be generated by GCS AS; when the security requirements are high, the security key can be generated by BM-SC, because GCS AS is a third-party application server. For users, GCS AS is Untrustworthy, and BM-SC is a functional network element of the operator's network, which can provide credible security protection.

When the GCS AS decides to generate the security key by the GCS AS, the GCS AS can generate the security key before sending the request message to the BM-SC, and then send the request message containing the security key generated by the GCS AS to the BM-SC. After receiving the request message, the BM-SC can obtain the security key by analyzing the request message.

When the GCS AS decides that the BM-SC generates the security key, the GCS AS directly sends a request message to the BM-SC. After receiving the request message, the BM-SC allocates MBMS system resources according to the received request message and selects MBMS network elements. , to establish an MBMS bearer between MBMS network elements. Since there is no security key in the request message, the BM-SC generates a security key. After the MBMS bearer is successfully established, the BM-SC sends a response message to the GCS AS. In the response message contains the security key generated by BM-SC. After receiving the response message, the GCS AS can obtain the security key by parsing the response message.

Next, the processing method of the cluster service in the embodiment of the present invention is introduced from the BM-SC side. Please refer to FIG. 3. FIG. 3 is a flow chart of the processing method of the cluster service on the BM-SC side in the embodiment of the present invention. The method includes :

Step 201: The broadcast-multicast service center BM-SC receives the request message sent by the cluster communication service application server GCS AS, and the request message is the capability indication and location information of the UE sent by the GCS AS according to the user equipment UE determining a message sent to the BM-SC after activating the multimedia broadcast/multicast service MBMS bearer service, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE;

Step 202: The BM-SC allocates MBMS system resources for MBMS service transmission according to the request message;

Step 203: The BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE.

It has been introduced in the previous description of the cluster service processing method on the GCS AS side that the GCS AS receives the UE's capability indication and location information, then determines to activate the MBMS bearer service according to the UE's capability indication and location information, and sends a request message to the BM-SC. The request message is used to request the BM-SC to establish an MBMS bearer for the UE according to the request message. Therefore, the BM-SC can receive the request message sent by the GCS AS.

After receiving the request message, the BM-SC may perform step 202 to allocate MBMS system resources for MBMS service transmission, wherein the MBMS system resources mainly include: frequency band, time slot, channel, etc. for MBMS service transmission.

Finally, step 203 can be performed. In the embodiment of the present invention, according to the content contained in the request message sent by the GCS AS to the BM-SC, the BM-SC will receive a request message containing different contents, and the BM-SC will use The allocated MBMS system resource establishes an MBMS bearer for the UE, specifically in the following three implementation manners:

The first implementation mode is: the request message includes the Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the user equipment UE is located; then the BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE ,include:

The BM-SC determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI contained in the request message;

The BM-SC selects an MBMS network element according to the MBMS SAI, and uses the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

Specifically, please refer to FIG. 4 , which is an interaction diagram between network elements during the process of establishing an MBMS bearer in an embodiment of the present invention. First, the UE reports the UE's own capability indication and location information to the GCS AS (step 1a), or the UE reports its own capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the UE's location information (step 1b). 1c); After receiving the UE's capability indication and location information, the GCS AS determines to activate the MBMS bearer service according to the UE's capability indication and location information (step 2); the GCS AS maps ECGI to SAI (step 3); the GCS AS determines The number of UEs with the same ECGI of the area where the UE is located reaches a preset threshold, and a request message is sent to the BM-SC for activating the MBMS bearer, and the request message includes the SAI generated by the GCS AS (step 4); BM-SC When receiving the request message containing the SAI generated by the GCS AS, allocate MBMS system resources, and select MBMS network elements according to the SAI (step 5); BM-SC starts MBMS bearer establishment according to the existing MBMS process (step 6); The BM-SC sends a response message to the GCS AS (step 7); the GCS AS notifies the UE to activate the MBMS bearer service, and sends the relevant application layer parameter information to the UE, such as the security key and the uniform resource locator USDURL of the user service description (User Service Description Uniform Resource Locator) and other information (step 8); UE obtains user service description USD (User Service Description) information, and UE can obtain USD from GCS AS through the SIP process of the existing technology, or through unicast or multicast The USD is obtained from the BM-SC in a multicast manner (step 9); the GCS AS transmits user data to the UE in a MBMS multicast manner (step 10).

The second implementation manner is: the request message includes the MBMS SAI corresponding to the area where the UE is located; then the BM-SC uses the allocated MBMS system resources to establish an MBMS bearer for the UE, including:

The BM-SC selects an MBMS network element according to the MBMS SAI, and uses the allocated The MBMS system resource establishes the MBMS bearer between the selected MBMS network elements.

Specifically, please refer to FIG. 5 . FIG. 5 is another interaction diagram between network elements during the process of establishing an MBMS bearer in the embodiment of the present invention. First, the UE reports the UE's own capability indication and location information to the GCS AS (step 1a), or the UE reports its own capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the UE's location information (step 1b). 1c); After receiving the capability indication and location information of the UE, the GCS AS determines to activate the MBMS bearer service according to the capability indication and location information of the UE (step 2); the GCS AS determines that there is a UE with the same ECGI of the area where the UE is located When the number reaches the preset threshold, send to the BM-SC a request message for activating the MBMS bearer, the request message contains the UE's ECGI (step 3); the BM-SC receives the request message containing the UE's ECGI , map ECGI to SAI, allocate MBMS system resources, and select MBMS network elements according to SAI (step 4); BM-SC starts MBMS bearer establishment according to the existing MBMS process (step 5); BM-SC sends GCS AS Send a response message (step 6); GCS AS notifies UE to activate the MBMS bearer service, and sends relevant application layer parameter information to UE, such as security key, USD URL and other information (step 7); UE obtains USD information, UE The USD can be obtained from the GCS AS through the SIP process of the prior art, and the USD can also be obtained from the BM-SC through unicast or multicast (step 8); the GCS AS transmits user data to the UE through MBMS multicast (step 9) .

The first implementation mode and the second implementation mode in which the BM-SC allocates MBMS system resources according to the request message and initiates the establishment of the MBMS session are applicable to the scenario where the UE reports ECGI to the GCS AS. The embodiment of the present invention also provides a third implementation manner, which is used in the scenario where the UE reports the ECGI and TAI to the GCS AS. The third embodiment is: the request message includes the tracking area identifier TAI of the area where the UE is located and the global cell identity of the evolved radio access network ECGI of the area where the UE is located; then the BM-SC uses the allocated MBMS system resources Establishing an MBMS bearer for the UE includes:

The BM-SC obtains configuration information according to the TAI contained in the request message, and the configuration information includes the correspondence between the TAI and MBMS network elements;

The BM-SC selects MBMS network elements according to the TAI and the configuration information, and uses the allocated MBMS system resources to establish the MBMS among the selected MBMS network elements bearer.

Specifically, in the third embodiment, the BM-SC needs to use the configuration information to select the MBMS network element and initiate the establishment of the MBMS session, wherein the configuration information represents the corresponding relationship between the TAI and the MBMS network element, and the configuration information can be configured in The DNS server can also be configured on the BM-SC. Since the request message received by the BM-SC contains the TAI of the area where the UE is located, the BM-SC can obtain the TAI by parsing the request message after receiving the request message, and then obtain the TAI from the BM-SC itself or from the DNS server Extract configuration information related to TAI.

For example, the corresponding relationship between TAI and MBMS network elements configured on the DNS server or BM-SC is as follows: TAI 1 corresponds to MBMS GW 1, MME 1, and MCE 1; TAI 2 corresponds to MBMS GW 2, MME 2, and MCE 2; TAI 3 corresponds to MBMS GW 3, MME 3, MCE 3. The request message received by the BM-SC includes that the TAI of the area where the UE is located is TAI 1, and the BM-SC extracts the MBMS network elements corresponding to TAI 1 from the BM-SC itself or from the DNS server: MBMS GW 1, MME1, MCE 1 .

Please refer to FIG. 6 . FIG. 6 is another interaction diagram between network elements during the process of establishing an MBMS bearer in the embodiment of the present invention. First, the UE reports the UE's own capability indication and location information to the GCS AS (step 1a), or the UE reports its own capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the UE's location information (step 1b). 1c); After receiving the capability indication and location information of the UE, the GCS AS determines to activate the MBMS bearer service according to the capability indication and location information of the UE (step 2); the GCS AS determines that there is a UE with the same ECGI of the area where the UE is located When the number reaches the preset threshold, send to the BM-SC a request message for activating the MBMS bearer, the request message includes the UE's ECGI and TAI (step 3); the BM-SC receives the UE's ECGI message When requesting a message, allocate MBMS system resources, select MBMS network element according to TAI, select eNB according to ECGI (step 4); BM-SC selects MBMS network element (such as MBMS GW, MME, MCE), and save the information of these MBMS network elements (for example: IP address, etc.) in the parameter table, the BM-SC selects the MBMS GW according to the parameter table, and then sends a session start request to the selected MBMS GW, in the session start request Contains the ECGI contained in the parameter table and the request message (step 5); MBMS GW Reply the session start response message to the BM-SC (step 6); MBMS GW selects the MME according to the parameter list, and then sends a session start request to the selected MME, the session start request includes the parameter list and the ECGI contained in the request message (step 6). 7); MME selects MCE according to the parameter table, then sends a session start request to the selected MCE, and the session start request includes the ECGI (step 8) contained in the parameter table and the request message; MCE according to the ECGI included in the session start request Select eNB, then send a session start request to the selected eNB (step 9); RAN side allocates radio resources (step 10); eNB replies session start response message to MBMS GW through MCE and MME (step 11); BM-SC sends GCS AS sends a response message (step 12); GCS AS notifies UE to activate the MBMS bearer service, and sends relevant application layer parameter information to UE, such as security key, USD URL and other information (step 13); UE obtains USD information , UE can obtain USD from GCS AS through the SIP process of prior art, also can obtain USD (step 14) from BM-SC through unicast or multicast mode; GCS AS transmits user data to UE through MBMS multicast mode (step 15).

As mentioned above in the description of the processing method of the cluster business on the GCS AS side, the GCS AS can also determine the generation method of the security key, that is, decide whether the security key is generated by the GCS AS or the BM-SC. The key is used to encrypt the data transmitted between GCS AS and UE, and the specific content of the security key can be: service key identification MSK ID (MBMS Service Key Identifier), MBMS service key MSK (MBMS Service Key) And the key validity period (key validation), etc.

In the embodiment of the present invention, the request message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE. The security key is generated by the GCS AS, and the security key is used to encrypt data transmitted between the GCS AS and the UE.

In the embodiment of the present invention, after the BM-SC receives the request message sent by the GCS AS, the method further includes:

The BM-SC sends a response message to the GCS AS, the response message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.

Specifically, when GCS AS decides to generate security keys by GCS AS, GCS AS can Before sending the request message to the BM-SC, generate a security key, and then send a request message to the BM-SC containing the security key generated by the GCS AS. After receiving the request message, the BM-SC can obtain the security key by analyzing the request message.

When the GCS AS decides that the BM-SC generates the security key, the GCS AS directly sends a request message to the BM-SC, which does not contain the security key. After receiving the request message, the BM-SC analyzes the request message , if the security key is not obtained, the security key is actively generated, and then when sending the response message of activating the MBMS bearer to the GCS AS, the response message containing the security key generated by the BM-SC is sent.

Please refer to FIG. 7 , which is an interaction diagram between network elements during the process of generating a security key in an embodiment of the present invention. As shown in Figure 7, the GCS AS first determines the generation method of the security key (step 1); when the generation method is that the security key is generated by the GCS AS, the GCS AS generates the security key (step 2a); the GCS AS sends the BM- SC sends a request message containing the security key generated by GCS AS (step 3a); when the generation method is that the security key is generated by BM-SC, GCS AS sends a request message to BM-SC (step 2b); BM-SC After receiving the request message, analyze the request message. If the security key is not obtained, the BM-SC will actively generate the security key, and then send a response message to activate the MBMS bearer to the GCS AS. The response message contains the information generated by the BM-SC. Security key (step 3b).

Next, the method for processing the cluster service in the embodiment of the present invention is introduced from the UE side. Please refer to FIG. 8. FIG. 8 is a flowchart of the method for processing the cluster service on the UE side in the embodiment of the present invention. The method includes:

Step 301: The user equipment UE reports the capability indication and location information of the UE to the trunked communication service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information Bearer service; wherein, the capability indication indicates that the UE supports multicast transmission, and the location information includes an Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the UE is located.

It has been introduced in the previous description of the cluster service processing methods on the GCS AS side and the BM-SC side that the GCS AS receives the capability indication and location information of the UE. The capability indication indicates that the UE supports multicast transmission. The access network global cell identity ECGI, in which the capability indication information and location information received by the GCS AS is reported by the UE. The specific reporting methods are as follows Two methods:

The first method: the UE reports the capability indication of the UE and the location information to the GCS AS through the GC1 interface signaling of the application layer.

The second method: the UE reports the capability indication and location information of the UE to the GCS AS through the SIP process.

Specifically, as shown in Figure 1, the UE is connected to the GCS AS through the GC1 interface of the application layer, so the UE can report the UE's own capability indication and the location information to the GCS AS through the GC1 interface signaling. In addition, when the UE registers with the group, it can also report the UE's own capability indication and location information to the GCS AS through the session initiation and SIP process.

In the embodiment of the present invention, the GCS AS determines to activate the MBMS bearer service according to the capability indication and location information of the UE. As mentioned above, after receiving the capability indication and location information of the UE, the GCS AS judges whether the UE supports multicast transmission, and whether the number of UEs with the same ECGI as the area where the UE is located reaches the preset threshold. If the judgment result is If yes, determine to activate the multimedia broadcast/multicast service MBMS bearer service, send a request message to the BM-SC, and the BM-SC allocates MBMS system resources according to the received request message, and establishes the MBMS bearer. For the specific implementation process, please refer to the above-mentioned description of the processing method of cluster services on the GCS AS side and the BM-SC side, and will not be repeated here.

In the embodiment of the present invention, the location information may only include the Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the UE is located, and the location information may also include the area where the UE is located The Tracking Area Identifier TAI.

Specifically, UE can report ECGI to GCS AS, and BM-SC can select MBMS network element according to ECGI, and establish MBMS bearer. For the specific implementation process, please refer to the above-mentioned description of the processing method of cluster services on the GCS AS side and the BM-SC side, and will not be repeated here.

The UE can also report ECGI and TAI to the GCS AS, and the BM-SC can select MBMS network elements according to the TAI in the area where the UE is located, and select eNBs according to the ECGI to establish MBMS bearers. For the specific implementation process, please refer to the above-mentioned description of the processing method of cluster services on the GCS AS side and the BM-SC side, and will not be repeated here.

Based on the same inventive concept, an embodiment of the present invention provides a cluster communication service application server GCS AS (Group Communication Service Application Server), please refer to Figure 9, Figure 9 is a functional block diagram of GCS AS in the embodiment of the present invention. For the meanings and specific implementations of the terms involved in the GCS AS shown in FIG. 9 , reference may be made to the aforementioned FIG. 1 to FIG. 8 and related descriptions of the embodiments.

As shown in Figure 9, GCS AS includes:

The first receiving unit 11 is configured to receive the capability indication and location information of the UE sent by the user equipment UE, wherein the capability indication indicates that the UE supports multicast transmission, and the location information includes the area where the UE is located Evolved radio access network global cell identity ECGI;

The processing unit 12 is configured to determine to activate the multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information;

The sending unit 13 is configured to send a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

Optionally, the processing unit 12 is specifically configured to:

According to the capability indication and the location information, it is determined that the UE supports multicast transmission, and the number of UEs having the same ECGI as that of the area where the UE is located reaches a preset threshold, then it is determined to activate the MBMS bearer service.

Optionally, the processing unit 12 is also used for:

Determine the generation method of the security key, the security key is used to encrypt the data transmitted between the GCS AS and the UE, the generation method of the security key includes generating the security key by the GCS AS , or the BM-SC generates a security key.

Optionally, the GCS AS also includes:

A generating unit configured to generate a security key when the GCS AS determines that the security key is generated by the GCS AS in a manner to generate a security key;

The sending unit 13 is specifically configured to: send the request message including the security key generated by the GCS AS to the BM-SC.

Optionally, the GCS AS also includes:

The second receiving unit is configured to receive a response message sent by the BM-SC, where the response message includes the security key generated by the BM-SC.

Optionally, the request message includes the ECGI of the area where the UE is located, so that the BM-SC determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located and according to the MBMS The SAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.

Optionally, the sending unit 13 is specifically configured to:

According to the ECGI of the area where the UE is located, determine the MBMS SAI corresponding to the area where the UE is located; and send a request message including the MBMS SAI corresponding to the area where the UE is located to the BM-SC.

Optionally, the sending unit 13 is specifically configured to:

sending a request message including the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located to the BM-SC, so that the BM-SC selects an MBMS network element according to the TAI, wherein the MBMS The network element is used to establish an MBMS bearer for the UE.

Optionally, the first receiving unit 11 is specifically configured to:

receiving the capability indication and location information of the UE reported by the UE through GCl interface signaling of the application layer; or

receiving the capability indication and location information of the UE reported by the UE through a session initiation protocol SIP process; or

Interact with the policy and charging function entity PCRF through the Rx interface to obtain the location information of the UE.

The various variations and specific examples of the cluster service processing method in the aforementioned embodiment of Figure 2 are also applicable to the GCS AS of this embodiment, and those skilled in the art can clearly The implementation method of the GCS AS in this embodiment is known, so for the sake of brevity of the description, it will not be described in detail here.

Please refer to FIG. 10, which is a hardware block diagram of the GCS AS in the embodiment of the present invention. GCS AS includes:

The receiver 111 is configured to receive the capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes the Evolved radio access network global cell identity ECGI in the area where the UE is located;

The processor 112 is configured to determine to activate the multimedia broadcast/multicast service MBMS bearer service according to the capability indication and the location information;

The sender 114 is configured to send a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

Optionally, the processor 112 is specifically configured to:

According to the capability indication and the location information, it is determined that the UE supports multicast transmission, and the number of UEs having the same ECGI as that of the area where the UE is located reaches a preset threshold, then it is determined to activate the MBMS bearer service.

Optionally, the processor 112 is also configured to:

Determine the generation method of the security key, the security key is used to encrypt the data transmitted between the GCS AS and the UE, the generation method of the security key includes generating the security key by the GCS AS , or the BM-SC generates a security key.

Optionally, the processor 112 is also configured to:

When the GCS AS determines that the generation method of the security key is to generate the security key by the GCS AS, generate the security key;

The sender 114 is specifically configured to: send the request message including the security key generated by the GCS AS to the BM-SC.

Optionally, the receiver 111 is also used for:

Receive a response message sent by the BM-SC, where the response message includes the security key generated by the BM-SC.

Optionally, the request message includes the ECGI of the area where the UE is located, so that the BM-SC determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI of the area where the UE is located and according to the MBMS The SAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.

Optionally, the transmitter 114 is specifically used for:

According to the ECGI of the area where the UE is located, determine the MBMS corresponding to the area where the UE is located SAI: sending a request message including the MBMS SAI corresponding to the area where the UE is located to the BM-SC.

Optionally, the transmitter 114 is specifically used for:

sending a request message including the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located to the BM-SC, so that the BM-SC selects an MBMS network element according to the TAI, wherein the MBMS The network element is used to establish an MBMS bearer for the UE.

Optionally, the receiver 111 is specifically used for:

receiving the capability indication and location information of the UE reported by the UE through GCl interface signaling of the application layer; or

receiving the capability indication and location information of the UE reported by the UE through a session initiation protocol SIP process; or

Interact with the policy and charging function entity PCRF through the Rx interface to obtain the location information of the UE.

Wherein, in FIG. 10, the bus architecture (represented by bus 110), bus 110 may include any number of interconnected buses and bridges, and bus 110 will include one or more processors represented by processor 112 and memory 113. The various circuits of the memory are linked together. The bus 100 may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. Bus interface 115 provides an interface between bus 100 and receiver 111 and transmitter 114 . Receiver 111 and transmitter 114 may be the same element, a transceiver, providing means for communicating with various other devices over a transmission medium. Depending on the nature of the user equipment, a user interface 116 may also be provided, such as a keypad, display, speaker, microphone, joystick, and the like.

Processor 112 is responsible for managing bus 110 and general processing, while memory 113 may be used to store data used by processor 112 in performing operations.

The various variations and specific examples of the cluster service processing method in the aforementioned embodiment of Figure 2 are also applicable to the GCS AS of this embodiment, and those skilled in the art can clearly Know the implementation method of GCS AS in this embodiment, so For the sake of brevity in the description, no detailed description is given here.

Based on the same inventive concept, a broadcast-multicast service center BM-SC (Broadcast-Multicast Service Center) is provided in the embodiment of the present invention, please refer to Fig. 11, Fig. 11 is a functional block diagram of the BM-SC in the embodiment of the present invention . For the meanings and specific implementations of the terms involved in the BM-SC shown in FIG. 11 , reference may be made to the preceding FIG. 1 to FIG. 8 and related descriptions of the embodiments.

As shown in Figure 11, BM-SC includes:

The receiving unit 21 is configured to receive a request message sent by the trunked communication service application server GCS AS, where the request message is determined by the GCS AS to activate the multimedia broadcast/ A message sent to the BM-SC after the multicast service MBMS bearer service, the request message is used to request the BM-SC to establish an MBMS bearer for the UE

An allocating unit 22, configured to allocate MBMS system resources for MBMS service transmission according to the request message;

The establishment unit 23 is configured to use the allocated MBMS system resources to establish an MBMS bearer for the UE.

Optionally, the request message includes the Evolved Radio Access Network global cell identity ECGI of the area where the user equipment UE is located; then the BM-SC further includes:

A mapping unit, configured to determine the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to the ECGI included in the request message;

The establishing unit 23 is configured to: select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

Optionally, the request message includes the MBMS SAI corresponding to the area where the UE is located; then the establishing unit 23 is specifically configured to:

Select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

Optionally, the request message includes the tracking area identifier TAI of the area where the UE is located and the TAI where the UE is located. Evolved radio access network global cell identity ECGI of the region; then the BM-SC also includes:

An obtaining unit, configured to obtain configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and MBMS network elements;

The establishment unit 23 is configured to: select an MBMS network element according to the TAI and the configuration information, and use the allocated MBMS system resources to establish the MBMS bearer between the selected MBMS network elements.

Optionally, the request message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.

Optionally, the BM-SC also includes:

A sending unit, configured to send a response message to the GCS AS after the BM-SC receives the request message sent by the GCS AS, the response message includes a security key, and the security key is used to authenticate the GCS Data transmitted between the AS and the UE is encrypted.

Various variations and specific examples of the cluster service processing method in the foregoing embodiment in FIG. 3 are also applicable to the BM-SC of this embodiment. Those skilled in the art can clearly Those who know the implementation method of the BM-SC in this embodiment, so for the sake of brevity, details are not described here.

Please refer to FIG. 12 , which is a hardware block diagram of the BM-SC in the embodiment of the present invention. BM-SC includes:

The receiver 221 is configured to receive a request message sent by the trunked communication service application server GCS AS, where the request message is determined by the GCS AS to activate the multimedia broadcast/ A message sent to the BM-SC after the multicast service MBMS bearer service, the request message is used to request the BM-SC to establish an MBMS bearer for the UE;

The processor 222 is configured to allocate MBMS system resources for MBMS service transmission according to the request message; use the allocated MBMS system resources to establish an MBMS bearer for the UE.

Optionally, the request message includes the Evolved Radio Access Network global cell identity ECGI of the area where the user equipment UE is located; then the processor 222 is further configured to:

According to the ECGI contained in the request message, determine the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located; select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system resources in the selection The outgoing MBMS network elements establish an MBMS bearer for the UE.

Optionally, the request message includes the MBMS SAI corresponding to the area where the UE is located; then the processor 222 is specifically configured to:

Select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system resources to establish an MBMS bearer for the UE between the selected MBMS network elements.

Optionally, the request message includes the Tracking Area Identity TAI of the area where the UE is located and the Evolved Radio Access Network Global Cell Identity ECGI of the area where the UE is located; then the processor 222 is further configured to:

Obtain configuration information according to the TAI included in the request message, the configuration information includes the correspondence between the TAI and MBMS network elements; select an MBMS network element according to the TAI and the configuration information, and use the allocated The MBMS system resource establishes the MBMS bearer between the selected MBMS network elements.

Optionally, the request message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.

Optionally, the BM-SC also includes:

The sender 223 is configured to send a response message to the GCS AS after the BM-SC receives the request message sent by the GCS AS, the response message includes a security key, and the security key is used for the The data transmitted between the GCS AS and the UE is encrypted.

Wherein, in FIG. 12, the bus architecture (represented by bus 210), bus 220 may include any number of interconnected buses and bridges, and bus 220 will include one or more processors represented by processor 222 and memory 224. The various circuits of the memory are connected together. The bus 220 may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 225 provides an interface between the bus 220 and the receiver 221 and the transmitter 223 . The receiver 221 and the transmitter 223 may be the same element, that is, a transceiver, provided for communicating with various A unit for communicating with other devices. Depending on the nature of the user equipment, a user interface 226 may also be provided, such as a keypad, display, speaker, microphone, joystick, and the like.

Processor 222 is responsible for managing bus 220 and general processing, while memory 224 may be used to store data used by processor 222 in performing operations.

Various variations and specific examples of the cluster service processing method in the foregoing embodiment in FIG. 3 are also applicable to the BM-SC of this embodiment. Those skilled in the art can clearly Those who know the implementation method of the BM-SC in this embodiment, so for the sake of brevity, details are not described here.

Based on the same inventive concept, an embodiment of the present invention provides a user equipment UE (User Equipment), please refer to FIG. 13, which is a functional block diagram of the UE in the embodiment of the present invention. For the meanings and specific implementations of the terms involved in the UE shown in FIG. 13 , reference may be made to the preceding FIG. 1 to FIG. 8 and related descriptions of the embodiments.

As shown in Figure 13, UE includes:

The processing unit 31 is configured to report the capability indication and location information of the UE to the trunked communication service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information Bearer service; wherein, the capability indication indicates that the UE supports multicast transmission, and the location information includes an Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the UE is located.

Optionally, the processing unit 31 is specifically configured to:

Reporting the capability indication of the UE and the location information to the GCS AS through the G1 interface signaling of the application layer; or

Report the capability indication and location information of the UE to the GCS AS through the session initiation protocol SIP process.

Optionally, the location information further includes a tracking area identifier TAI of the area where the UE is located.

Various changes and specific examples of the cluster service processing method in the aforementioned embodiment in FIG. 8 are also applicable to the UE in this embodiment. Through the foregoing detailed description of the cluster service processing method, those skilled in the art can clearly understand The implementation method of the UE in this embodiment, so for the description It is concise and will not be described in detail here.

Please refer to FIG. 14 , which is a hardware block diagram of a UE in an embodiment of the present invention. UEs include:

Processor 311, configured to report the capability indication and location information of the UE to the trunked communication service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information Bearer service; wherein, the capability indication indicates that the UE supports multicast transmission, and the location information includes an Evolved Radio Access Network Global Cell Identity (ECGI) of the area where the UE is located.

Optionally, the processor 311 is specifically configured to:

Reporting the capability indication of the UE and the location information to the GCS AS through the G1 interface signaling of the application layer; or

Report the capability indication and location information of the UE to the GCS AS through the session initiation protocol SIP process.

Optionally, the location information further includes a tracking area identifier TAI of the area where the UE is located.

Wherein, in FIG. 14, bus architecture (represented by bus 330), bus 310 may include any number of interconnected buses and bridges, and bus 310 will include one or more processors represented by processor 311 and memory 312 represented The various circuits of the memory are connected together. The bus 310 may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein.

Processor 311 is responsible for managing bus 310 and general processing, while memory 312 may be used to store data used by processor 311 when performing operations.

Specifically, the UE may be a mobile phone, a tablet computer, or other user-side devices.

Various changes and specific examples of the cluster service processing method in the aforementioned embodiment in FIG. 8 are also applicable to the UE in this embodiment. Through the foregoing detailed description of the cluster service processing method, those skilled in the art can clearly understand The implementation method of the UE in this embodiment is not described in detail here for the sake of brevity.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

In the embodiment of the present invention, the trunked communication service application server GCS AS receives the UE's own capability indication and location information sent by the user equipment UE, and then determines to activate the multimedia broadcast/multicast service MBMS bearer according to the capability indication and the location information. The service finally sends a request message to the broadcast-multicast service center BM-SC, and the request message is used to request the BM-SC to establish an MBMS bearer for the UE.

Therefore, in the embodiment of the present invention, the GCS AS can dynamically activate the MBMS bearer according to the capability indication and location information of the user equipment UE, and then activate the MBMS bearer service for the UE in a specific location area where the UE is located, so as to ensure that the MBMS service is provided for the UE.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can 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 and optical storage, etc.) 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 should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby instructions are provided for implementing the flowchart in Steps of a process or processes and/or functions specified in a block or blocks of a block diagram.

While embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (36)

1. A kind of processing method of group service, it is characterised in that methods described includes：

   The ability that cluster communication service application server GCS AS receive the UE that user equipment (UE) is sent is indicated and positional information, wherein, the ability indicates that characterizing the UE supports multicast transmission, and the positional information includes the evolution wireless access network Cell Global Identity ECGI of the UE regions；

   The GCS AS are indicated and the positional information according to the ability, determine activating multimedia broadcast/multicast service MBMS carrying services；

   The GCS AS send request message to broadcast-multicast service center BM-SC, and the request message is used to ask the BM-SC to set up MBMS carryings for the UE.
2. The method as described in claim 1, it is characterised in that the GCS AS are indicated and the positional information according to the ability, it is determined that activation MBMS carrying services, including：

   The GCS AS are indicated and the positional information according to the ability, determine that the UE supports multicast transmission, and reach predetermined threshold value with the quantity with the ECGI identicals UE of the UE regions, it is determined that activation MBMS carrying services.
3. Method as described in right wants 1 or 2, it is characterised in that methods described also includes：

   The GCS AS determine the generating mode of safe key, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted, the generating mode of the safe key includes generating safe key by the GCSAS, or generates safe key by the BM-SC.
4. Method as claimed in claim 3, it is characterised in that when it is to generate safe key by the GCS AS that the GCS AS, which determine the generating mode of safe key, methods described also includes：

   The GCS AS generate safe key；

   The safe key generated by the GCS AS is included in the request message that then the GCS AS are sent to BM-SC.
5. Method as claimed in claim 3, it is characterised in that when it is to generate safe key by the BM-SC that the GCS AS, which determine the generating mode of safe key, methods described also includes：

   The GCS AS are received in the response message that the BM-SC is sent, the response message and included by institute State the safe key of BM-SC generations.
6. Method as claimed in claim 1 or 2, it is characterized in that, the request message includes the ECGI of the UE regions, so that the BM-SC determines that the corresponding MBMS area in the UE regions identifies MBMS SAI and according to MBMS SAI selection MBMS network elements according to the ECGI of the UE regions, wherein, the MBMS network elements are used to set up MBMS carryings for the UE.
7. Method as claimed in claim 2, it is characterised in that the GCS AS send request message to BM-SC, including：

   The GCS AS determine the corresponding MBMS SAI in the UE regions according to the ECGI of the UE regions；

   The GCS AS send the request message for including the corresponding MBMS SAI in the UE regions to the BM-SC.
8. Method as claimed in claim 1 or 2, it is characterised in that the GCS AS send request message to BM-SC, be specially：

   The GCS AS send the request message comprising the tracking area identification TAI of the UE regions and the ECGI of the UE regions to the BM-SC, so that the BM-SC selects MBMS network elements according to the TAI, wherein, the MBMS network elements are used to set up MBMS carryings for the UE.
9. Method as described in claim 1,2 or 7, it is characterised in that the ability that the GCS AS receive the UE that UE is sent is indicated and positional information, is specially：

   The ability that the GCS AS receive the UE that the UE is reported by the GC1 interface signalings of application layer is indicated and positional information；Or

   The ability that the GCS AS receive the UE that the UE is reported by Session initiation Protocol SIP flows is indicated and positional information；Or

   The GCS AS are interacted by Rx interface with strategy and billing function entity PCRF, obtain the positional information of the UE.
10. A kind of processing method of group service, it is characterised in that methods described includes：

    Broadcast-multicast service center BM-SC receives asking for cluster communication service application server GCS AS transmissions Seek message, the request message is in the GCS AS UE sent according to user equipment (UE) ability instruction and positional information, the message sent after activating multimedia broadcast/multicast service MBMS carrying services to the BM-SC is determined, the request message is used to ask the BM-SC to set up MBMS carryings for the UE；

    The BM-SC is that MBMS service transmission distributes MBMS system resources according to the request message；

    The BM-SC sets up MBMS carryings using the MBMS system resources of the distribution for the UE.
11. Method as claimed in claim 10, it is characterised in that the evolution wireless access network Cell Global Identity ECGI of user equipment (UE) region is included in the request message；Then the BM-SC sets up MBMS carryings using the MBMS system resources of the distribution for the UE, including：

    The BM-SC determines the corresponding MBMS area mark MBMS SAI in the UE regions according to the ECGI included in the request message；

    The BM-SC selects MBMS network elements according to the MBMS SAI, and is that the UE sets up MBMS carryings between the MBMS network elements selected using the MBMS system resources of the distribution.
12. Method as claimed in claim 10, it is characterised in that the corresponding MBMS SAI in the UE regions are included in the request message；Then the BM-SC sets up MBMS carryings using the MBMS system resources of the distribution for the UE, including：

    The BM-SC selects MBMS network elements according to the MBMS SAI, and is that the UE sets up MBMS carryings between the MBMS network elements selected using the MBMS system resources of the distribution.
13. Method as claimed in claim 10, it is characterised in that the evolution wireless access network Cell Global Identity ECGI of the tracking area identification TAI and UE regions comprising UE regions in the request message；Then the BM-SC sets up MBMS carryings using the MBMS system resources of the distribution for the UE, including：

    The BM-SC obtains configuration information according to the TAI included in the request message, and the configuration information includes the corresponding relation between TAI the and MBMS network elements；

    The BM-SC selects MBMS network elements according to the TAI and the configuration information, and is that the UE sets up MBMS between the MBMS network elements selected using the MBMS system resources of the distribution Carrying.
14. Method as described in claim 10-13 is any, it is characterised in that the request message includes safe key, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted.
15. Method as described in claim 10-13 is any, it is characterised in that after the BM-SC receives the request message that GCS AS are sent, methods described also includes：

    The BM-SC is sent to the GCS AS includes safe key in response message, the response message, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted.
16. A kind of processing method of group service, it is characterised in that methods described includes：

    User equipment (UE) reports the ability of the UE to indicate and positional information to cluster communication service application server GCS AS, so that the GCS AS are indicated and the positional information according to the ability, determines activating multimedia broadcast/multicast service MBMS carrying services；Wherein, the ability indicates that characterizing the UE supports multicast transmission, and the positional information includes the evolution wireless access network Cell Global Identity ECGI of the UE regions.
17. Method as claimed in claim 16, it is characterised in that the UE reports the ability of the UE to indicate and positional information to GCS AS, including：

    The UE reports the ability of the UE to indicate and the positional information by the GC1 interface signalings of application layer to the GCS AS；Or

    The UE reports the ability of the UE to indicate and positional information by Session initiation Protocol SIP flows to the GCS AS.
18. Method as described in claim 16 or 17, it is characterised in that the positional information also includes the tracking area identification TAI of the UE regions.
19. A kind of cluster communication service application server GCS AS, it is characterised in that including：

    First receiving unit, the ability of the UE for receiving user equipment (UE) transmission is indicated and positional information, wherein, the ability indicates that characterizing the UE supports multicast transmission, and the positional information includes the evolution wireless access network Cell Global Identity ECGI of the UE regions；

    Processing unit, for according to the ability indicate and the positional information, determine activating multimedia broadcast/ Multicast service MBMS carrying services；

    Transmitting element, for sending request message to broadcast-multicast service center BM-SC, the request message is used to ask the BM-SC to set up MBMS carryings for the UE.
20. GCS AS as claimed in claim 19, it is characterised in that the processing unit specifically for：

    Indicated according to the ability and the positional information, determine that the UE supports multicast transmission, and predetermined threshold value is reached with the quantity with the ECGI identicals UE of the UE regions, it is determined that activation MBMS carrying services.
21. GCS AS as described in claim 19 or 20, it is characterised in that the processing unit is additionally operable to：

    The generating mode of safe key is determined, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted, the generating mode of the safe key includes generating safe key by the GCS AS, or generates safe key by the BM-SC.
22. GCS AS as claimed in claim 21, it is characterised in that the GCS AS also include：

    Generation unit, for determining that the generating mode of safe key is when generating safe key by the GCS AS, to generate safe key as the GCS AS；

    The transmitting element specifically for：Sent to BM-SC comprising the request message by the GCS AS safe keys generated.
23. GCS AS as claimed in claim 21, it is characterised in that the GCS AS also include：

    Second receiving unit, the safe key generated by the BM-SC is included for receiving in the response message that the BM-SC is sent, the response message.
24. GCS AS as described in claim 19 or 20, it is characterized in that, the request message includes the ECGI of the UE regions, so that the BM-SC determines that the corresponding MBMS area in the UE regions identifies MBMS SAI and according to MBMSSAI selection MBMS network elements according to the ECGI of the UE regions, wherein, the MBMS network elements are used to set up MBMS carryings for the UE.
25. GCS AS as claimed in claim 20, it is characterised in that the transmitting element specifically for：

    According to the ECGI of the UE regions, the corresponding MBMS SAI in the UE regions are determined；The request message for including the corresponding MBMS SAI in the UE regions is sent to the BM-SC.
26. GCS AS as described in claim 19 or 20, it is characterised in that the transmitting element specifically for：

    The request message comprising the tracking area identification TAI of the UE regions and the ECGI of the UE regions is sent to the BM-SC, so that the BM-SC selects MBMS network elements according to the TAI, wherein, the MBMS network elements are used to set up MBMS carryings for the UE.
27. GCS AS as described in claim 19,20 or 25, it is characterised in that first receiving unit specifically for：

    The ability for receiving the UE that the UE is reported by the GC1 interface signalings of application layer is indicated and positional information；Or

    The ability for receiving the UE that the UE is reported by Session initiation Protocol SIP flows is indicated and positional information；Or

    Interacted by Rx interface with strategy and billing function entity PCRF, obtain the positional information of the UE.
28. A kind of broadcast-multicast service center BM-SC, it is characterised in that the BM-SC includes：

    Receiving unit, request message for receiving cluster communication service application server GCS AS transmissions, the request message is in the GCS AS UE sent according to user equipment (UE) ability instruction and positional information, the message sent after activating multimedia broadcast/multicast service MBMS carrying services to the BM-SC is determined, the request message is used to ask the BM-SC to set up MBMS carryings for the UE；

    Allocation unit, for being that MBMS service transmission distributes MBMS system resources according to the request message；

    Unit is set up, MBMS carryings are set up for the UE for the MBMS system resources using the distribution.
29. BM-SC as claimed in claim 28, it is characterised in that the evolution wireless access network Cell Global Identity ECGI of user equipment (UE) region is included in the request message；Then the BM-SC also includes：

    Map unit, for according to the ECGI included in the request message, determining the corresponding MBMS area mark MBMS SAI in the UE regions；

    The unit of setting up is used for：MBMS network elements are selected according to the MBMS SAI, and are that the UE sets up MBMS carryings between the MBMS network elements selected using the MBMS system resources of the distribution.
30. BM-SC as claimed in claim 28, it is characterised in that the corresponding MBMS SAI in the UE regions are included in the request message；Then it is described set up unit specifically for：

    MBMS network elements are selected according to the MBMS SAI, and are that the UE sets up MBMS carryings between the MBMS network elements selected using the MBMS system resources of the distribution.
31. BM-SC as claimed in claim 28, it is characterised in that the evolution wireless access network Cell Global Identity ECGI of the tracking area identification TAI and UE regions comprising UE regions in the request message；Then the BM-SC also includes：

    Obtaining unit, for obtaining configuration information according to the TAI included in the request message, the configuration information includes the corresponding relation between TAI the and MBMS network elements；

    The unit of setting up is used for：The MBMS carryings are set up between the MBMS network elements selected according to the TAI and configuration information selection MBMS network elements, and using the MBMS system resources of the distribution.
32. BM-SC as described in claim 28-31 is any, it is characterised in that the request message includes safe key, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted.
33. BM-SC as described in claim 28-31 is any, it is characterised in that the BM-SC also includes：

    Transmitting element, after receiving the request message that GCS AS are sent in the BM-SC, sent to the GCS AS and safe key is included in response message, the response message, the safe key is used to the data transmitted between the GCS AS and the UE are encrypted.
34. A kind of user equipment (UE), it is characterised in that the UE includes：

    Processing unit, for reporting the ability of the UE to indicate and positional information to cluster communication service application server GCS AS, so that the GCS AS are indicated and the positional information according to the ability, determines activating multimedia broadcast/multicast service MBMS carrying services；Wherein, the ability indicates that characterizing the UE supports multicast transmission, and the positional information includes the evolution wireless access network Cell Global Identity ECGI of the UE regions.
35. UE as claimed in claim 34, it is characterised in that the processing unit specifically for：

    The ability of the UE is reported to indicate and the positional information to the GCS AS by the GC1 interface signalings of application layer；Or

    The ability of the UE is reported to indicate and positional information to the GCS AS by Session initiation Protocol SIP flows.
36. UE as described in claim 34 or 35, it is characterised in that the positional information also includes the tracking area identification TAI of the UE regions.