CN102595327A - MBMS (Multimedia Broadcasting/Multicast Service) triggering method and system - Google Patents
MBMS (Multimedia Broadcasting/Multicast Service) triggering method and system Download PDFInfo
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Abstract
The invention discloses an MBMS (Multimedia Broadcasting/Multicast Service) triggering method, which comprises the following steps: BM-SC (Broadcast/Multicast Service Center) sends a group identifier of an equipment group for carrying out current MBMS conversation operation through a control signaling to a user terminal; and the user terminal triggers the user terminal to carry out the current MBMS conversation operation according to the group identifier. The invention also discloses an MBMS triggering system which is capable of greatly saving wireless resources, reducing BM-SC service data processing quantity, improving the service processing efficiency of the user terminal such as MTC (Multimedia Technologies Center) and improving the triggering efficiency of the MBMS business.
Description
Technical field
The present invention relates to Machine Type communication (MTC, Machine Type Communication) device assess technology, relate in particular to a kind of multimedia broadcast/group broadcast service (MBMS, MultimediaBroadcast/Multicast Service) triggering method and system.
Background technology
What define on machine (M2M, the Machine to Machine) narrow sense is the communication of machine to machine, and broadly definition is the application and the service of core, networking with the machine terminal intelligent interaction.M2M is based on the intelligence machine terminal, is the access means with multiple communication mode, is the informatization resolve scheme that the client provides, and is used to satisfy the information system requirement of client to aspects such as monitoring, command scheduling, data acquisition and measurements.Data communication between one or more machines is called Machine Type communication (MTC; Machine TypeCommunication); Lessly in this case need human-computer interaction, the machine of participating in MTC is called MTC equipment, and MTC equipment is the MTC user terminal; Can pass through public land mobile communication network (PLMN, Public Land Mobile-communication Network) communicates with MTC server, other MTC equipment.
Under some application scenarios, like water meter, ammeter etc., the MTC number of devices is numerous; And online when determining each MTC equipment when not required by its application need, only when applications trigger, MTC equipment just through network with use mutual; Respond accordingly, as above count off according to etc.MTC equipment can trigger by group, also can have the ability that under off-line state, receives broadcasting by area triggering.In the prior art scheme, MTC equipment is triggered by the zone through Cell Broadcast CB, the interior MTC equipment in zone is received the foundation link of broadcasting back, and initiation is mutual with the MTC application server.But when triggering business through Cell Broadcast CB, all MTC equipment can receive broadcast message in the zone, and fail safe can't guarantee, and business such as the renewal of the issuing of configuration data, software or video flowing transmission also can't realize through broadcasting.Therefore, under this scene, can use multimedia broadcast/group broadcast service (MBMS, MultimediaBroadcast/Multicast Service) to the MTC evaluation method selecting optimal equipment.
In order to effectively utilize mobile network resource, existing GSM has proposed to use the thought of broadcast group broadcast transport service, promptly adopts MBMS.MBMS provides a kind of data source to send the point-to-multipoint service of data to a plurality of users in the mobile network, thereby has realized that Internet resources are shared, has improved utilization rate of network resource, the utilance of the interface resource of especially eating dishes without rice or wine.
MBMS provides dual mode: broadcast mode and multicast mode.Wherein, broadcast mode is a kind of data receiver formula of unidirectional point-to-multipoint, for example, the transmission of data such as text, audio frequency, image, video, the object of broadcasting is all users of broadcast area.The data of broadcast mode are sent at public wireless channel, have made full use of wireless and resource network, and the transmission of data must adaptive wireless Access Network (RAN, Radio Access Network) ability or available Radio Resource.Identical with broadcast mode, the MBMS data under the multicast pattern are sent and also should be complementary with RAN and Radio Resource.A kind of MBMS business of multicast pattern can have a plurality of multicast conversations; In general, for the more intense streaming media service of some real-times, has only a conversation procedure; And professional for the text data of the download type of some non real-time property, in cycle preset time, a plurality of sessions can be arranged.
MBMS can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize multicast and broadcasting that high-speed multimedia is professional.GSM uses the network architecture of MBMS as shown in Figure 1 down; Wherein, universal terrestrial access network (UTRAN, UMTS Terrestrial Radio Access Network) and UMTS land radio access web (E-UTRAN; Evolved Universal TerrestrialRadio Access Network) is used for Radio Resource is managed; General packet radio service (GPRS, General Packet Radio Service) support node (SGSN, Service GSN) and mobile management unit (MME; Mobility Management Entity) through MBMS gateway (MBMS GW; MBMSGateway) join with broadcast multicast service center (BM-SC, Broadcast Multicast Service Centre), content supplier (Content Provider) be used to provide the MBMS business tine; Comprise the business of operator definition and business and content and the content of business and the parameter of activation of service needs of content, provider's definition, like multicast address etc.; BM-SC is mainly used in and provides and distribute the MBMS business, as content provider's inlet, is used for authorizing and initiating MBMS bearer service, scheduling and transmission MBMS content etc. at mobile network; SGSN and MME mainly act on: send the MBMS data to UTRAN/E-UTRAN, carry the service controlled function for each subscriber equipment among the mobile network (UE, User Equipment) provides MBMS; UE has increased the MBMS function, and has defined new logic shared channel and realize that interface-free resources shares.
In the prior art, it is that message through user level carries out that MBMS triggers UE by group, at first sets up signaling link between this process need UE and the BM-SC; BM-SC gives UE through these link issuing service data afterwards, carries group id in the business datum, and UE receives said business datum; And, judge that the group identifier that obtains this group id and UE configuration itself in judgement is fashionable from wherein decoding group id; UE carries out the corresponding subsequent action of said business datum, as adhere to etc.In MTC communication, the MTC number of devices is numerous, if adopt the triggering method of above-mentioned MBMS; Carry out through the user level message; Then can cause waste of radio resources, can reduce the Business Processing efficient of MTC equipment, also can bring huge business data processing pressure to BM-SC; Cause network blockage easily, and cause the professional disposal ability of MBMS to descend.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of MBMS triggering method and system, can cause the problem of waste of radio resources with the trigger process that solves existing MBMS.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of multimedia broadcast/group broadcast service (MBMS) triggering method, said method comprises: the group id that broadcast multicast service center (BM-SC) will be carried out current MBMS session apparatus operating group through the control signaling sends to user terminal; Said user terminal triggers and self carries out current MBMS session operation according to said group id.
In such scheme; Said method comprises: said BM-SC sends session and begins to ask UMTS land radio access web/universal terrestrial access network (E-UTRAN/UTRAN), and said session begins to ask to carry to need to carry out the group id that current MBMS session begins the apparatus operating group; E-UTRAN/UTRAN begins to extract the request said group id from said session, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the operation that begins of self carrying out current MBMS session.
In such scheme, said method comprises: said BM-SC sends the conversation end request to E-UTRAN/UTRAN, and said conversation end request carries the group id of the equipment group that needs the current MBMS session terminating operation of execution; E-UTRAN/UTRAN extracts said group id from said conversation end request, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the terminating operation of self carrying out current MBMS session.
In such scheme, said method comprises: said BM-SC sends the session updates request to E-UTRAN/UTRAN, and said session updates request carries the group id that needs to carry out current MBMS session updates apparatus operating group; E-UTRAN/UTRAN extracts said group id from said session updates request, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the renewal operation of self carrying out current MBMS session.
In such scheme, said user terminal triggers and self carries out current MBMS session operation according to said group id; Be specially: said user terminal receives said control signaling, from said control signaling, extracts said group id, judges whether the local group id of preserving is identical with the extract group id that obtains; If it is different; Then do not trigger and self carry out current MBMS session operation,, then trigger and self carry out current MBMS session operation if identical.
In such scheme, said E-UTRAN/UTRAN through control signaling said group id is sent to said user terminal, specifically can for: said E-UTRAN/UTRAN sends to said user terminal through MCCH message with said group id.
The present invention also provides a kind of MBMS triggering system, and said system comprises: BM-SC and user terminal, and wherein, BM-SC is used for sending to user terminal through the group id that the control signaling will be carried out current MBMS session apparatus operating group; Said user terminal is used to receive the group id that said BM-SC sends, and according to said group id, triggers and self carry out current MBMS session operation.
In such scheme, said user terminal is MTC equipment or UE.
In such scheme, said system also comprises: E-UTRAN/UTRAN, and wherein, said BM-SC specifically is used for the group id of the current MBMS session apparatus operating group of said needs execution is sent to said E-UTRAN/UTRAN; E-UTRAN/UTRAN is used to receive the said group id that said BM-SC sends, and through the control signaling said group id is sent to said user terminal.
In such scheme; Said system also comprises: MBMS gateway (MBMS GW), mobile management unit/general packet wireless service support node (MME/SGSN); Wherein, said BM-SC sends to said E-UTRAN/UTRAN through said MBMS GW, MME/SGSN with the said group id that needs to carry out current MBMS session apparatus operating group.
MBMS triggering method of the present invention and system; From the triggering that control signaling aspect solves the equipment group, make not meet and trigger the user terminal that requires and not need BM-SC to set up signaling link, and do not meet and trigger the not broadcast or the multicast message that send of treatments B M-SC of the user terminal that requires; Thereby can save Radio Resource greatly; Reduce BM-SC business data processing amount, improve the Business Processing efficient of user terminal such as MTC equipment, improve the professional triggering efficient of MBMS.
Description of drawings
Fig. 1 is the network architecture sketch map when GSM uses MBMS down in the prior art;
Fig. 2 is the realization flow figure of MBMS triggering method of the present invention;
Fig. 3 begins the realization flow figure of flow process for the MBMS session of the embodiment of the invention one;
Fig. 4 is the realization flow figure of the MBMS session termination process of the embodiment of the invention two;
Fig. 5 is the realization flow figure of the MBMS session updates flow process of the embodiment of the invention three.
Embodiment
Basic thought of the present invention is: in MBMS; The group id (Group ID) that BM-SC will carry out current MBMS session apparatus operating multicast through the control signaling carries to user terminal, and user terminal is according to this group id, and whether decision carries out follow-up MBMS session operation; Said user terminal can be a MTC equipment; Also can be UE, so, not meeting the user terminal that triggers requirement can not need BM-SC to set up signaling link; And do not meet the not broadcast or the multicast message that send of treatments B M-SC of the user terminal that trigger to require, thereby can save Radio Resource greatly.
MBMS triggering method of the present invention with reference to shown in Figure 2, mainly may further comprise the steps:
The group id that step 101:BM-SC will carry out current MBMS session apparatus operating group through the control signaling sends to user terminal;
Step 102: said user terminal triggers and self carries out current MBMS session operation according to said group id.
Here, said user terminal triggers and self carries out current MBMS session operation according to said group id; Be specially: said user terminal receives said control signaling, from said control signaling, extracts said group id, judges whether the local group id of preserving is identical with the extract group id that obtains; If it is different; Then do not trigger and self carry out current MBMS session operation,, then trigger and self carry out current MBMS session operation if identical.
Wherein, Said method can comprise: said BM-SC sends session and begins to ask UMTS land radio access web/universal terrestrial access network (E-UTRAN/UTRAN), and said session begins to ask to carry to need to carry out the group id that current MBMS session begins the apparatus operating group; E-UTRAN/UTRAN begins to extract the request said group id from said session, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the operation that begins of self carrying out current MBMS session.
Here, need the group id of the equipment group of the current MBMS session of beginning to comprise: the group id of group under each user terminal of the current MBMS session of needs beginning.
Wherein, said method can also comprise: said BM-SC sends the conversation end request to E-UTRAN/UTRAN, and said conversation end request carries the group id of the equipment group that needs the current MBMS session terminating operation of execution; E-UTRAN/UTRAN extracts said group id from said conversation end request, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the terminating operation of self carrying out current MBMS session.
Here, need the group id of the equipment group of the current MBMS session of termination to comprise: needs stop the group id of the affiliated group of each user terminal of current MBMS session.
Wherein, said method can also comprise: said BM-SC sends the session updates request to E-UTRAN/UTRAN, and said session updates request carries the group id that needs to carry out current MBMS session updates apparatus operating group; E-UTRAN/UTRAN extracts said group id from said session updates request, through the control signaling said group id is sent to said user terminal; Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the renewal operation of self carrying out current MBMS session.
Here, need the group id of the equipment group of the current MBMS session of renewal to comprise: needs upgrade the group id of the affiliated group of each user terminal of current MBMS session.
Here, said E-UTRAN/UTRAN through control signaling said group id is sent to said user terminal, specifically can for: said E-UTRAN/UTRAN sends to said user terminal through MCCH message with said group id;
Need to prove that above-mentioned user terminal can be MTC equipment or UE.
Accordingly; The present invention also provides a kind of MBMS triggering system, and said system can comprise: BM-SC and user terminal, wherein; BM-SC is used for sending to user terminal through the group id that the control signaling will be carried out current MBMS session apparatus operating group; Said user terminal is used to receive the group id that said BM-SC sends, and according to said group id, triggers and self carry out current MBMS session operation.
Here, said user terminal can be MTC equipment or UE.
Wherein, said system can also comprise: E-UTRAN/UTRAN, and wherein, said BM-SC specifically is used for the group id of the current MBMS session apparatus operating group of said needs execution is sent to said E-UTRAN/UTRAN; E-UTRAN/UTRAN is used to receive the said group id that said BM-SC sends, and through the control signaling said group id is sent to said user terminal.
Here; Said system can also comprise: MBMS gateway (MBMS GW), mobile management unit/general packet wireless service support node (MME/SGSN); Wherein, said BM-SC sends to said E-UTRAN/UTRAN through said MBMSGW, MME/SGSN with the said group id that needs to carry out current MBMS session apparatus operating group.
Particularly, said BM-SC will carry through said MBMS GW, MME/SGSN needs the session of execution MBMS session beginning group id of apparatus operating group to begin to ask to send to said E-UTRAN/UTRAN.Perhaps, said BM-SC sends to said E-UTRAN/UTRAN through the conversation end request that said MBMS GW, MME/SGSN will carry the group id of the equipment group that needs execution MBMS session terminating operation.Perhaps, said BM-SC will carry the session updates request that needs to carry out MBMS session beginning group id of apparatus operating group through said MBMS GW, MME/SGSN and send to said E-UTRAN/UTRAN.
Embodiment one
Fig. 3 begins flow chart for the MBMS session of present embodiment; This MBMS session begins flow process and is initiated by core net; Be used for requirement E-UTRAN/UTRAN notice UE and begin current MBMS session; And the signaling of setting up MBMS connects, and the MBMS session begins process in the present embodiment, specifically can comprise the steps:
Step 201, BM-SC sends session and begins to ask MBMS GW, and this session has been carried descendant node information, MBMS bearer context and has been needed the group id (Group ID) of the equipment group of the current MBMS session of beginning in beginning to ask;
Here, said descendant node information can be the MME/SGSN tabulation of current MBMS session, and this MME/SGSN tabulation includes the information of each MME/SGSN relevant with current MBMS session, like information such as the ID of MME/SGSN, addresses.
Here, need the group id of the equipment group of the current MBMS session of beginning to comprise: the group id of group under each UE of the current MBMS session of needs beginning.
Step 202, MBMS GW receives said session and begins request, returns session to BM-SC and begins response;
Step 203, MBMS GW begins request according to received session, creates the MBMS bearer context, preserves to carry attribute information, and after said carrying attribute information added to said session and begin request, sends to the relevant MME/SGSN of current MBMS session.
Step 204; Said MME/SGSN receives said session and begins request, creates the MBMS bearer context, preserves to carry attribute information; And after said carrying attribute information added to said session and begin request, said session is begun request send to E-UTRAN/UTRAN;
Step 205, E-UTRAN/UTRAN receives said session and begins request, creates the MBMS bearer context, preserves and carries attribute information, extracts the Group ID that said session is carried in beginning to ask, and returns session to MME/SGSN and begin response;
Step 206, said MME/SGSN receives the session that said E-UTRAN/UTRAN returns and begins response, returns session to MBMS GW and begins response;
Step 207, E-UTRAN/UTRAN sends to UE with the Group ID that is extracted through the control signaling, and UE triggers the operation that begins of self carrying out current MBMS session according to said Group ID.
Particularly, UE receives said control signaling, from said control signaling, extracts said Group ID; Judge that the local Group ID that preserves is whether identical with the Group ID that extraction obtains, if different, the current MBMS session that does not then trigger said UE begins flow process; Said UE does not carry out the operation that begins of current MBMS session, if identical, the current MBMS session that then triggers said UE begins flow process; Set up link between BM-SC and the UE; Afterwards, the link that BM-SC and UE can pass through to be set up carries out business data transmission, begins current MBMS session.
Here, said UE can be one or more, and is relevant with the carrying number of current MBMS session.
Here, said control signaling specifically can be MBMS control channel (MCCH, a MBMS ControlChannel) message.
In the practical application; After triggering current MBMS session and beginning, that said UE receives is that BM-SC sends through the link of being set up between self and the UE, be used to indicate and carry out broadcast or the multicast message that current MBMS session begins to operate, and for example the broadcast or the multicast message of order are adhered in expression; Received broadcast or multicast message are carried out dissection process; And the execution corresponding action, for example, initiate attach request etc.
Embodiment two
Fig. 4 is the MBMS conversation end flow chart of present embodiment; Current MBMS session does not produce any transfer of data in a period of time; Core net need be initiated the termination process of current MBMS session, mainly is the signaling connection that request E-UTRAN/UTRAN notice UE stops current MBMS session, the current MBMS session of release.In the present embodiment, the Group ID of the equipment group that needs the current MBMS session of termination is carried in conversation end request increase, and the MBMS conversation end flow process of present embodiment specifically can comprise the steps:
Step 301, BM-SC sends the conversation end request to MBMS GW, the Group ID that carries descendant node information in this conversation end request and need to stop the equipment group of current MBMS session;
Here, said descendant node information can be the MME/SGSN tabulation of current MBMS session, and this MME/SGSN tabulation includes the information of each MME/SGSN relevant with current MBMS session, like information such as the ID of MME/SGSN, addresses.
Step 302, MBMS GW receives said conversation end request, and returns the conversation end response to BM-SC;
Step 303.MBMS GW sends to each SGSN/MME relevant with current MBMS session with said conversation end request, to discharge all bearing resources relevant with current MBMS session;
Each SGSN/MME that step 304. is relevant with current MBMS session receives said conversation end request, sends the conversation end response to MBMS GW;
Each SGSN/MME that the said current MBMS session of step 305. is correlated with is according to said conversation end request; Discharge the bearing resource of self, and said conversation end request is sent among the E-UTRAN/UTRAN and the pairing BSCs/RNCs of current MBMS session relevant bearer;
The said BSCs/RNCs of step 306. receives said conversation end request, from said conversation end request, extracts said Group ID, and returns the conversation end response to SGSN/MME;
BSCs/RNCs among the said E-UTRAN/UTRAN of step 307. sends to corresponding UE through MCCH message with the Group ID that is extracted, and UE triggers the terminating operation of self carrying out current MBMS session according to said Group ID.
Here, UE is according to said Group ID, triggers that to trigger the process that current MBMS session begins flow process among detailed process and the embodiment one of current MBMS session termination process basic identical, and different is that what to trigger here is the process ends of MBMS session.Particularly; UE judges whether the local Group ID that preserves is identical with said Group ID, if difference does not then trigger the current MBMS conversation end flow process of said UE; Said UE does not carry out the termination process of current MBMS session; If identical, then trigger the current MBMS conversation end flow process of said UE, said UE carries out current MBMS session termination process.
Here; UE carries out current MBMS session termination process: said UE receives that BM-SC sends, as to be used to indicate current MBMS session termination broadcast or multicast message; Received broadcast or multicast message are carried out dissection process, initiate detach request.
Embodiment three
Fig. 5 is the MBMS session updates flow chart of present embodiment, and MBMS session updates flow process is initiated by core net, mainly is in the MBMS session is carried out, and SGSN notice UE upgrades route (RA, RootingArea) tabulation or renewal bearing parameter.Increase the Group ID that carries the equipment group that needs the current MBMS session of renewal in the present embodiment in the session updates flow process, the concrete implementation procedure of present embodiment can comprise the steps:
Step 401.BM-SC sends the session updates request to MBMS GW, the Group ID that carries bearing parameter in this session updates request and need to carry out the equipment group of current MBMS session updates;
Here, said bearing parameter can comprise service quality parameters such as (QoS, Quality of Service).
Here; Also include descendant node information in the said session updates request; This descendant node information can be the MME/SGSN tabulation of current MBMS session, and this MME/SGSN tabulation includes the information of each MME/SGSN relevant with current MBMS session, like information such as the ID of MME/SGSN, addresses.
Step 402.MBMS GW receives said session updates request, and returns the session updates response to BM-SC;
Step 403.MBMS GW sends to each SGSN/MME relevant with current MBMS session with said session updates request, to upgrade bearing parameter;
Each SGSN/MME that step 404. is relevant with current MBMS session receives said session updates request, and returns the session updates response to MBMS GW;
Step 405. each SGSN/MME relevant with current MBMS session with said session updates request send among the E-UTRAN/UTRAN, with the corresponding BSCs/RNCs of current MBMS session relevant bearer;
Among the step 406.E-UTRAN/UTRAN, receive said session updates request with the corresponding BSCs/RNCs of current MBMS session relevant bearer; Extract the Group ID that wherein carries, and return the session updates response to each SGSN/MME relevant with current MBMS session;
BSCs/RNCs among the step 407.E-UTRAN/UTRAN, corresponding with current MBMS session relevant bearer sends to corresponding UE through MCCH message with said Group ID, and said UE triggers the renewal of current MBMS session according to said Group ID.
Here, UE is according to said Group ID, triggers that to trigger the process that current MBMS session begins among detailed process and the embodiment one of current MBMS session updates basic identical, and different is that what to trigger here is the more new technological process of MBMS session.Particularly; UE judges whether the local Group ID that preserves is identical with said GroupID, if difference does not then trigger the current MBMS session updates flow process of said UE; UE does not carry out the renewal of current MBMS session; If identical, then trigger the current MBMS session updates flow process of said UE, UE carries out current MBMS session updates flow process.
Here; UE carries out current MBMS session updates flow process: said UE receives that BM-SC sends is used to indicate broadcast or the multicast message that carries out current MBMS session updates; Received broadcast or multicast message are resolved, initiate the bearing modification request to network.
Here, said UE can be one or more, and the carrying number that the number of UE is relevant with current MBMS session is relevant.
Need to prove that above-mentioned three embodiment all can be applied in the MTC communication, for MTC equipment, through the MBMS triggering session begin, the process of session termination and session updates, identical with the implementation procedure of the foregoing description.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multimedia broadcast/group broadcast service (MBMS) triggering method is characterized in that said method comprises:
The group id that broadcast multicast service center (BM-SC) will be carried out current MBMS session apparatus operating group through the control signaling sends to user terminal;
Said user terminal triggers and self carries out current MBMS session operation according to said group id.
2. MBMS triggering method according to claim 1 is characterized in that, said method comprises:
Said BM-SC sends session and begins to ask UMTS land radio access web/universal terrestrial access network (E-UTRAN/UTRAN), and said session begins to ask to carry to need to carry out the group id that current MBMS session begins the apparatus operating group;
E-UTRAN/UTRAN begins to extract the request said group id from said session, through the control signaling said group id is sent to said user terminal;
Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the operation that begins of self carrying out current MBMS session.
3. MBMS triggering method according to claim 1 is characterized in that, said method comprises:
Said BM-SC sends the conversation end request to E-UTRAN/UTRAN, and said conversation end request carries the group id of the equipment group that needs the current MBMS session terminating operation of execution;
E-UTRAN/UTRAN extracts said group id from said conversation end request, through the control signaling said group id is sent to said user terminal;
Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the terminating operation of self carrying out current MBMS session.
4. MBMS triggering method according to claim 1 is characterized in that, said method comprises:
Said BM-SC sends the session updates request to E-UTRAN/UTRAN, and said session updates request carries the group id that needs to carry out current MBMS session updates apparatus operating group;
E-UTRAN/UTRAN extracts said group id from said session updates request, through the control signaling said group id is sent to said user terminal;
Said user terminal extracts said group id from said control signaling, according to the group id that is extracted, trigger the renewal operation of self carrying out current MBMS session.
5. according to each described MBMS triggering method of claim 1 to 4, it is characterized in that said user terminal triggers and self carries out current MBMS session operation according to said group id, is specially:
Said user terminal receives said control signaling; From said control signaling, extract said group id; Judge whether the local group id of preserving is identical with the extract group id that obtains,, then do not trigger and self carry out current MBMS session operation if different; If identical, then trigger and self carry out current MBMS session operation.
6. according to each described MBMS triggering method of claim 1 to 4; It is characterized in that; Said E-UTRAN/UTRAN through control signaling said group id is sent to said user terminal, specifically can for: said E-UTRAN/UTRAN sends to said user terminal through MCCH message with said group id.
7. a MBMS triggering system is characterized in that, said system comprises: BM-SC and user terminal, wherein,
BM-SC is used for sending to user terminal through the group id that the control signaling will be carried out current MBMS session apparatus operating group;
Said user terminal is used to receive the group id that said BM-SC sends, and according to said group id, triggers and self carry out current MBMS session operation.
8. MBMS triggering system according to claim 7 is characterized in that, said user terminal is MTC equipment or UE.
9. MBMS triggering system according to claim 7 is characterized in that, said system also comprises: E-UTRAN/UTRAN, wherein,
Said BM-SC specifically is used for the group id of the current MBMS session apparatus operating group of said needs execution is sent to said E-UTRAN/UTRAN;
E-UTRAN/UTRAN is used to receive the said group id that said BM-SC sends, and through the control signaling said group id is sent to said user terminal.
10. MBMS triggering system according to claim 9; It is characterized in that; Said system also comprises: MBMS gateway (MBMS GW), mobile management unit/general packet wireless service support node (MME/SGSN); Wherein, said BM-SC sends to said E-UTRAN/UTRAN through said MBMS GW, MME/SGSN with the said group id that needs to carry out current MBMS session apparatus operating group.
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| Publication number | Priority date | Publication date | Assignee | Title |
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