CN100456732C - Method of realizing multimedia broadcasting group broadcnsting business deactivation - Google Patents
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Abstract
The present invention discloses a method for deexciting multimedia broadcasting /multicasting service, which comprises: A. SGSN sends a request of deactivation MBMS contexts to UE, wherein the request contains ID for identifying MBMS UE contexts; B. after the UE receives the request containing the deactivation MBMS contextd in the step A, the MBMS UE contexts are deleted, and the UE sends a receiving message conataining the deactivation MBMS contexts for identifying the MBMS UE contexts to SGSN; C. the SGSN sends a request message for deleting the MBMS context to associated GGSN of the MBMS UE contexts; D. after the associated GGSN receives the request message for deleting the MBMS UE context, SGSN, the associated GGSN and BM-SC are respectively delete the MBMS UE contexts. The ID for identifying the MBMS UE contexts is further added in the request of the deactivation MBMS contexts, which are sent to the UE through the SGSN, the UE can correctly identify the MBMS UE contexts which need to deleted, and the deactivation of multicasting/broadcasting service is realized. The present invention has the advantages of accuracy and reliability.
Description
Technical field
The present invention relates to multicast service, particularly about the method for a kind of realization multimedia broadcast/group broadcast service (MBMS, Multimedia Broadcast Multicast Service) deexcitation.
Background technology
Along with the development of 3G (Third Generation) Moblie technology, 3G (Third Generation) Moblie can provide than the more service of high data rate of second generation mobile communication, thereby supports the multiple business form.Download, browse at a high speed services such as Internet network such as visual telephone, picture.Wherein have a class business features to be: this business can be simultaneously give subscribed in the wireless network should business the user send.Such as weather forecast, news film, the sports tournament collection of choice specimens etc.The characteristics of utilizing these business to send simultaneously, 3G (Third Generation) Moblie have been introduced the notion of multicast/broadcast.
Referring to shown in Figure 1, for an intermediate node, no matter its downstream comprises the node what expectations receive data, and its upstream node always sends a piece of data to this intermediate node; After this intermediate node is received data, the number of nodes that receives data according to its downstream expectation duplicates this data, and distribute this data to the node that each expectation of its downstream receives these data, like this, each bar branch of multicast/broadcast business data transmission tree all has only a piece of data to transmit, take a transfer resource, the transfer of data of root node and its downstream node also is like this.The distinctive points of multicast service and broadcasting service only is: multicast service only sends corresponding information to the user who has subscribed to some information, and the broadcasting service then user of all in wireless network sends information.As seen from the above description, provide identical information to a large number of users simultaneously, can greatly save Internet resources by multicast/broadcast is professional.
Fig. 2 is for supporting the wireless network architecture schematic diagram of multicast/broadcast business, as shown in Figure 2, the wireless network architecture of supporting the multicast/broadcast business in the existing third generation partner program (3GPP) is that broadcast/multicast service center (BM-SC) 201 is by Gmb interface or Gi interface and gateway general packet radio service (GPRS) support node (GGSN, Gateway GPRS Support Node) 202 link to each other, and a BM-SC 201 can link to each other with a plurality of GGSN 202; GGSN 202 links to each other by Gn/Gp interface and Serving GPRS Support Node (SGSN, Serving GPRS Support Node) 203, and a GGSN 202 can link to each other with a plurality of SGSN 203; SGSN 203 can link to each other with universal mobile telecommunications system (UMTS) land radio access web (UTRAN) 204 by the Iu interface, UTRAN 204 links to each other with communication terminal 206 by the Uu interface then, SGSN 203 also can strengthen wireless access network (GERAN) 205 by Iu/Gb interface and global system for mobile communications (GSM) and link to each other, and GERAN 205 links to each other with communication terminal 206 by Um Interface then.
MBMS activating multicast service process is: UE is registered in network, and the MBMS multicast service that activates for UE is at UE, and SGSN, GGSN and RNC have set up MBMS UE context, thereby makes this UE can receive data from specific MBMS multicast service.This activation is the Signalling exchange between UE and the network.When network uses the MBMS carrying that this multicast service is carried out transfer of data, can be according to these information with transfer of data to this UE, and associative operation such as charge.
Equally, MBMS deactivation group broadcast service process also is the signalling interactive process between UE and the network, and this process will be at the MBMS UE context of the specific MBMS multicast service of a UE from UE, SGSN, delete among the GGSN, thereby make network send the respective sets multicast business data no longer for this UE.And deactivation process can be by UE, GGSN, and BM-SC, SGSN triggers.
MBMS UE context comprises the information specific that specific MBMS carries that UE has added.When UE added a MBMS carrying, MBMS UE context was at UE, SGSN, and GGSN is created.At UE and SGSN, MBMS UE context is preserved as the contextual part of the MM of UE; At GGSN, MBMS UE context is preserved separately.Each MBMS that UE adds carries a MBMS UE context.
Ginseng is shown in Table 1, MBMS UE context has and comprises: IP multicast address, APN (APN), TMGI (Temporary Mobile Group Identity), Linked NSAPI (NetWork Service AccessPoint Identifier, Network Service Access point identifies) and IMSI (International MobileSubscriber Identity, international mobile group identification code) etc.Wherein, IP multicast address identifies the MBMS carrying that a UE has added; The APN that APN has been defined for this IP multicast address; TMGI is a Temporary Mobile Group Identity of distributing to the MBMS carrying; Linked NSAPI is for to remove to carry IGMP/MLD (Internet Group Management Protocol/Multicast ListenerDiscovery by UE, IGMP/multicast monitoring discovery) the contextual NSAPI of the PDP of signaling (Packet DataProtocol, message data protocol); IMSI is a user ID.
Table 1
The MBMS bearer context comprises all information descriptions that define a MBMS service bearer, and this context is created at all nodes of carrying MBMS data.Ginseng is shown in Table 2, and the MBMS bearer context comprises: IP multicast address, APN, TMGI, State, QoS, MBMS coverage, downstream node listing, UEs quantity etc.Wherein, the IP multicast address sign is by the MBMS carrying of this MBMS bearer context description; The APN that APN has been defined for this IP multicast address; TMGI is a Temporary Mobile Group Identity of distributing to the MBMS carrying; State is the activity state (' static ' or ' activation ') of MBMS carrying; QoS is the service quality of this MBMS load bearing requirements; The zone that the MBMS coverage sends for the MBMS service needed; The downstream node listing is for having asked the MBMS carrying, the downstream node listing that the MBMS data must be issued to; The UE ground quantity that adds this multicast service that this node of UEs quantity has.
| Parameter | Describe | RAN | SGSN | GGSN | BM-SC |
| IP multicast address | The MBMS carrying that the IP multicast address sign is described by this MBMS bearer context | X | X | X | X |
| APN | The APN that this IP multicast address has been defined | X | X | X | Wait to study |
| TMGI | Distribute to the Temporary Mobile Group Identity of MBMS carrying | X | X | X | X |
| State | The activity state (' static ' or ' activation ') of MBMS carrying | Wait to study | X | X | X |
| QoS | The service quality of this MBMS load bearing requirements | X | X | X | X |
| The MBMS coverage | The zone that the MBMS service needed sends | X | X | X | X |
| The downstream node listing | Asked the MBMS carrying, the downstream node listing that the MBMS data must be issued to | X | X | X | |
| UEs quantity | The UE ground quantity that adds this multicast service that this node has | Wait to study | X | X | Wait to study |
| Wait to study | Wait to study | ||||
Table 2
Referring to shown in Figure 3, the detailed process of carrying out deactivation group broadcast service in the prior art is as follows:
Step 301:UE sends IGMP (IPv4) or MLD (IPv6) leave group message by the PDP Context of acquiescence to GGSN, thereby leaves a specific multicast service by the IP multicast address sign.
Step 302:GGSN sends the Indication message that leaves that contains IP multicast address and IMSI to BM-SC, and the multicast service by this IP multicast address sign is left in indication UE attempt.
Step 303: in case receive and leave Indication message, BM-SC has verified the corresponding effective MBMS business of this IP multicast address, sends a UE deletion request message that contains IP multicast address, APN and IMSI leaves indication to generation just now GGSN.APN will with the activation of service process in provide consistent.BM-SC also can trigger the deletion of MBMS UE context by directly sending a UE deletion request message to GGSN.
In a single day step 304:GGSN receives the reason of UE deletion request message or GGSN oneself, and GGSN sends a MBMS UE context deexcitation request message that contains IP multicast address, APN and IMSI to SGSN.IP multicast address, APN and IMSI have identified the MBMS UE context that need be deleted by SGSN together.Wherein, APN equals to go on foot the APN that receives the 3rd.SGSN sends a MBMS UE context deexcitation response message to GGSN, responds it and has received MBMS UE context deexcitation request.
In a single day step 305:SGSN receives MBMS UE context deexcitation request message, the perhaps reason of SGSN oneself, and SGSN sends a deexcitation MBMS context request message that contains TI to UE, the MBMS UE context that the TI sign need be deleted by UE.
Step 306:UE deletes MBMS UE context, and accepts message to deexcitation MBMS context that contains TI of SGSN transmission.
Step 307: if currently be used for the MBMS transmission data for this UE has distributed special-purpose Radio Resource, RAN discharges this Radio Resource.If currently distributed shared Radio Resource to be used for the MBMS transmission data, RAN may determine remaining UEs is transferred in the middle of the private resource.
Step 308: accept the reason of message or SGSN oneself if received deexcitation MBMS context, SGSN sends a deletion MBMS context request message that contains NSAPI to having the contextual GGSN of MBMS UE.
Step 309:GGSN deletion MBMS UE context sends deexcitation Indication message MBMS UE context of having confirmed successful deexcitation to BM-SC.After BM-SC receives the deexcitation Indication message, deletion MBMS UE context, and to acknowledge message of GGSN transmission.
Step 310: if no user receives this MBMS multicast service among the GGSN, and " the downstream node listing " of corresponding MBMS bearer context be empty, and GGSN goes login request message to MBMS of BM-SC transmission.MBMS of BM-SC feedback removes registration reply message, and with in its MBMS bearer context, the sign of this GGSN is deleted from " downstream node listing " parameter.
Step 311:GGSN sends a deletion MBMS context response information to SGSN, the MBMS UE context of having confirmed deexcitation.SGSN deletion MBMS UE context.
Step 312: if no user receives this MBMS multicast service among the SGSN, and " the downstream node listing " of corresponding MBMS bearer context be empty, and SGSN goes login request message to MBMS of GGSN transmission.MBMS of GGSN feedback removes registration reply message, and with in its MBMS bearer context, the sign of this SGSN is deleted from " downstream node listing " parameter.
In step 305, SGSN sends deexcitation MBMS context request message to UE, allows UE delete corresponding M BMS UE context.Wherein, carry TI (TransactionIdentifier, Transaction Identifier) in this message, be used to identify the MBMS UE context that to be deleted by UE.
From said process as can be seen, the MBMS UE context of preserving in SGSN and UE is all initiated the employed PDP Context of MBMS activation of service process with UE and is undertaken relevant by NSAPI.When the user activates a plurality of MBMS when professional, these business all are to initiate by the PDP Context of acquiescence.A PDP Context and a plurality of MBMS UE context dependent so.TI can only identify a PDP Context.Thereby having activated a plurality of MBMS when professional as UE, SGSN only carries the MBMS UE context that TI can not indicate UE to delete in deexcitation MBMS context request message.In step 206, the TI that the deexcitation MBMS context of UE response SGSN is accepted to carry in the message can not identify UE and delete which MBMS UE context equally.
Summary of the invention
Main purpose of the present invention provides a kind of method that realizes exciting multimedia broadcast/multicast service, makes UE can correctly delete MBMS UE context.
A kind of method of exciting multimedia broadcast/multicast service that realizes provided by the invention comprises:
A.SGSN sends deexcitation MBMS context request to UE, wherein contains the contextual sign of identification MBMS UE;
After B.UE receives and contains the MBMS of deexcitation described in steps A context request, deletion MBMSUE context, and send to SGSN and to contain the contextual deexcitation MBMS of identification MBMS UE context and accept message;
C.SGSN GGSN under MBMS UE context sends deletion MBMS context request message;
After D.GGSN received this deletion MBMS UE context request message, SGSN, GGSN and BM-SC deleted MBMS UE context respectively, finish deexcitation.
Before execution in step A, this method further comprises:
A1, GGSN send MBMS UE context deexcitation request message to SGSN.
Before execution in step A1, this method further comprises:
A0, BM-SC verify the corresponding effective MBMS business of this IP multicast address, send the UE deletion request message to GGSN then.
Before execution in step A, this method further comprises:
A11, UE send the IGMP/MLD leave group message by the PDP Context of acquiescence to GGSN, thereby leave a specific multicast service by the IP multicast address sign;
A12, GGSN send one to BM-SC and leave Indication message, wherein contain IP multicast address and IMSI, and the multicast service by this IP multicast address sign is left in indication UE attempt.
After execution in step D, this method further comprises:
If currently be used for the MBMS transmission data for this UE has distributed special-purpose Radio Resource, RAN discharges this Radio Resource;
If currently distributed shared Radio Resource to be used for the MBMS transmission data, RAN transfers to remaining UE in the middle of the private resource.
Step D comprises:
D0, GGSN deletion MBMS UE context sends deexcitation Indication message MBMS UE context of having confirmed successful deexcitation to BM-SC;
After D1, BM-SC receive this deexcitation Indication message, deletion MBMS UE context, and to GGSN transmission acknowledge message;
D2, GGSN send a deletion MBMS context response information to SGSN, the MBMS UE context of having confirmed deexcitation;
After D3, SGSN receive this deletion MBMS context response information, deletion MBMS UE context.
Before execution in step D3, and after step D2, this method further comprises:
If no user receives this MBMS multicast service among the D21 GGSN, and the downstream node listing of corresponding MBMS bearer context be empty, and GGSN goes login request message to MBMS of BM-SC transmission;
After D22, BM-SC received that this MBMS goes login request message, MBMS removed registration reply message to the GGSN feedback, and the sign of this GGSN in the downstream node listing in the deletion MBMS bearer context.
After execution in step D3, this method further comprises:
If no user receives this MBMS multicast service among the D31 SGSN, and the downstream node listing of corresponding MBMS bearer context be empty, and SGSN goes login request message to MBMS of GGSN transmission;
After D32, GGSN received that this MBMS goes login request message, a MBMS removed registration reply message to the SGSN feedback, and deletion is with this corresponding in the downstream node listing in MBMS bearer context SGSN sign.
The contextual sign that contains TMGI that is designated of described identification MBMS UE, or for containing the sign of IP multicast address at least.
Contextual IP multicast address and the APN of being designated of described identification MBMS UE, or be TI, IP multicast address and APN, or be the combination of the TI/NSAPI and the TMGI/ first information, the described first information is IP multicast address and APN.
Further comprise the contextual sign of identification MBMSUE in the MBMS of deletion described in the step C context request message, the UE of MBMS described in step D context is according to described identification MBMS
The contextual sign deletion of UE.
Contextual being designated of identification MBMS UE described in the step C: IMSI, IP multicast address and APN, or be IMSI and TMGI.
The contextual sign of identification MBMS UE described in the steps A is different with the contextual sign of identification MBMS UE described in the step B.
The present invention further increases the contextual sign of identification MBMS UE by SGSN in the deexcitation MBMS context request that UE sends, make the MBMS UE context that UE can correctly identify needs deletion, thereby realize the deexcitation of multicast/broadcast business, and accurately, reliably.
Description of drawings
Fig. 1 is a multicast transmission schematic diagram in the prior art;
Fig. 2 is a various modes networking plan schematic diagram;
Fig. 3 is a schematic flow sheet of realizing deactivation process in the prior art;
Fig. 4 is for realizing the specific embodiment schematic flow sheet of the inventive method.
Embodiment
A plurality of MBMS multicast services have been activated in order to solve as UE, when wanting one of them MBMS multicast service of deexcitation, the TI that carries in the deexcitation MBMS context request message that UE receives can not identify the specific MBMS UE context that needs deletion, the present invention further increases the contextual sign of identification MBMS UE at SGSN in the deexcitation MBMS context request that UE sends, make the MBMS UE context that UE can correctly identify needs deletion, thereby realize the deexcitation of multimedia broadcast/group broadcast service.
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments.
Referring to shown in Figure 4, realize that the specific embodiment flow process of the inventive method is as follows:
Step 401:UE sends IGMP (IPv4)/MLD (IPv6) leave group message by the PDP Context of acquiescence to GGSN, leaves a specific multicast service by the IP multicast address sign.
After step 402:GGSN receives this IGMP (IPv4)/MLD (IPv6) leave group message, send the Indication message that leaves that contains IP multicast address and IMSI to BM-SC, the multicast service by this IP multicast address sign is left in indication UE attempt.
After step 403:BM-SC receives that this leaves Indication message, verify the corresponding effective MBMS business of this IP multicast address, send the UE deletion request message to producing the GGSN that leaves indication just now, trigger the deletion of MBMS UE context, comprising IP multicast address, APN and IMSI.Certainly, BM-SC also can directly send a UE deletion request message to GGSN, triggers the deletion of MBMS UE context.Here, APN will with the activation of service process in provide consistent.
In a single day step 404:GGSN receives the reason of UE deletion request message or GGSN oneself, and GGSN sends a MBMS UE context deexcitation request message to SGSN, comprising IP multicast address, APN and IMSI.SGSN sends a MBMS UE context deexcitation response message to GGSN, responds it and has received MBMS UE context deexcitation request.Here, IP multicast address, APN and IMSI have identified the MBMS UE context that need be deleted by SGSN together.Wherein, APN equals to go on foot the APN that receives the 3rd.
In a single day step 405:SGSN receives deexcitation request of MBMS UE context or other reasons, then send deexcitation MBMS context request to UE, wherein contain identification MBMS UE contextual sign, the contextual sign of described identification MBMS UE can identify the MBMS UE context that need be deleted by UE.
After step 406:UE receives the deexcitation MBMS context request message that SGSN sends, deletion MBMS UE context, and send a deexcitation MBMS context to SGSN and accept message, wherein contain the contextual sign of identification MBMS UE.
Step 407: if currently be used for the MBMS transmission data for this UE has distributed special-purpose Radio Resource, RAN discharges this Radio Resource.If currently distributed shared Radio Resource to be used for the MBMS transmission data, RAN may determine remaining UEs is transferred in the private resource.
Step 408:SGSN has received that deexcitation MBMS context accepts message or other reasons, and SGSN sends the deletion MBMS context request message that contains NSAPI to having the contextual GGSN of MBMS UE.
After step 409:GGSN received the deletion MBMS context request message that SGSN sends, deletion MBMS UE context sent a deexcitation Indication message to BM-SC, the MBMS UE context of having confirmed successful deexcitation.After BM-SC receives the deexcitation Indication message, deletion MBMS UE context, and to acknowledge message of GGSN transmission.
Step 410: if no user receives this MBMS multicast service and corresponding MBMS bearer context among the GGSN " downstream node listing " for empty, GGSN sends a MBMS to BM-SC and goes login request message.BM-SC feeds back a MBMS and remove registration reply message, and with in its MBMS bearer context, the sign of this GGSN is deleted from downstream node listing parameter after receiving that the MBMS of GGSN transmission goes login request message.
Step 411:GGSN sends deletion MBMS context response information to SGSN, the MBMS UE context of having confirmed deexcitation.After SGSN receives the MBMS context response information of GGSN transmission, deletion MBMS UE context.
Step 412: if no user receives this MBMS multicast service among the SGSN, and " the downstream node listing " of corresponding MBMS bearer context be empty, then goes login request message to SGSN to MBMS of GGSN transmission.MBMS of GGSN feedback removes registration reply message, and with in its MBMS bearer context, the sign of this SGSN is deleted from " downstream node listing " parameter.
In step 405 and step 406, the contextual sign of described identification MBMS UE can be TMGI, or IP multicast address+APN, or TI+IP multicast address+APN, or the combination of TI/NSAPI and TMGI/IP multicast address+APN.And the contextual sign of identification MBMS UE described in step 405 and the step 406 can be the same or different.
Need to prove, SGSN can be by IP multicast address and the APN that carries in the MBMSUE context deexcitation request message of receiving in the step 404 from GGSN, in the MBMS of SGSN bearing message, carry out index, thereby obtain the TMGI of this multicast service.
In addition, in specific implementation process, can in step 408, give the further contextual sign of identification MBMS UE that increases in the deletion MBMS context request message that has the contextual GGSN transmission of MBMS UE by SGSN.This sign can be IMSI+IP multicast address+APN or IMSI+IP multicast address, if and this message itself carried IMSI, the information of carrying so is IP multicast address+APN or IP multicast address; The contextual sign of identification MBMS UE also can be IMSI+TMGI, if this message itself is carried IMSI, the information of carrying so is TMGI.
Claims (13)
1, a kind of method of exciting multimedia broadcast/multicast service is characterized in that, this method may further comprise the steps:
A. gateway universal grouping wireless business supporting node SGSN sends deexcitation multimedia broadcast/group broadcast service MBMS context request to user equipment (UE), wherein contains the contextual sign of identification MBMS UE;
After B.UE receives and contains the MBMS of deexcitation described in steps A context request, deletion MBMSUE context, and send to SGSN and to contain the contextual deexcitation MBMS of identification MBMS UE context and accept message;
C.SGSN ggsn GGSN under MBMS UE context sends deletion MBMS context request message;
After D.GGSN received this deletion MBMS UE context request message, SGSN, GGSN and broadcasting or multicast service center BM-SC deleted MBMS UE context respectively, finish deexcitation.
2, method according to claim 1 is characterized in that, before execution in step A, this method further comprises:
A1, GGSN send MBMS UE context deexcitation request message to SGSN.
3, method according to claim 2 is characterized in that, before execution in step A1, this method further comprises:
A0, BM-SC verify the corresponding effective MBMS business of this IP multicast address, send the UE deletion request message to GGSN then.
4, method according to claim 3 is characterized in that, before execution in step A, this method further comprises:
A11, UE send IGMP IGMP/ multicast monitoring discovery MLD leave group message by the message data protocol PDP Context of acquiescence to GGSN, thereby leave a specific multicast service by the IP multicast address sign;
A12, GGSN send one to BM-SC and leave Indication message, wherein contain IP multicast address and international mobile group identification code IMSI, and the multicast service by this IP multicast address sign is left in indication UE attempt.
5, method according to claim 1 is characterized in that, after execution in step D, this method further comprises:
If currently be used for the MBMS transmission data for this UE has distributed special-purpose Radio Resource, wireless access network RAN discharges this Radio Resource;
If currently distributed shared Radio Resource to be used for the MBMS transmission data, RAN transfers to remaining UE in the middle of the private resource.
6, method according to claim 1 is characterized in that, step D comprises:
D0, GGSN deletion MBMS UE context sends deexcitation Indication message MBMS UE context of having confirmed successful deexcitation to BM-SC;
After D1, BM-SC receive this deexcitation Indication message, deletion MBMS UE context, and to GGSN transmission acknowledge message;
D2, GGSN send a deletion MBMS context response information to SGSN, the MBMS UE context of having confirmed deexcitation;
After D3, SGSN receive this deletion MBMS context response information, deletion MBMS UE context.
7, method according to claim 6 is characterized in that, before execution in step D3, and after step D2, this method further comprises:
If no user receives this MBMS multicast service among the D21 GGSN, and the downstream node listing of corresponding MBMS bearer context be empty, and GGSN goes login request message to MBMS of BM-SC transmission;
After D22, BM-SC received that this MBMS goes login request message, MBMS removed registration reply message to the GGSN feedback, and the sign of this GGSN in the downstream node listing in the deletion MBMS bearer context.
8, method according to claim 6 is characterized in that, after execution in step D3, this method further comprises:
If no user receives this MBMS multicast service among the D31 SGSN, and the downstream node listing of corresponding MBMS bearer context be empty, and SGSN goes login request message to MBMS of GGSN transmission;
After D32, GGSN received that this MBMS goes login request message, a MBMS removed registration reply message to the SGSN feedback, and deletion is with this corresponding in the downstream node listing in MBMS bearer context SGSN sign.
9, method according to claim 1 is characterized in that, the contextual sign that contains Temporary Mobile Group Identity TMGI that is designated of described identification MBMS UE, or for containing the sign of IP multicast address at least.
10, method according to claim 1, it is characterized in that, described identification MBMS UE is contextual to be designated IP multicast address and APN APN, or is Transaction Identifier TI, IP multicast address and APN, or identifies the combination of the NSAPI and the TMGI/ first information for the TI/ Network Service Access point; The described first information is IP multicast address and APN.
11, method according to claim 1, it is characterized in that, further comprise the contextual sign of identification MBMS UE in the MBMS of deletion described in the step C context request message, the UE of MBMS described in step D context is according to the contextual sign deletion of described identification MBMS UE.
12, method according to claim 1 is characterized in that, MBMSUE is contextual is designated in identification described in the step C: IMSI, IP multicast address and APN, or be IMSI and TMGI.
13, method according to claim 1 is characterized in that, the contextual sign of identification MBMSUE described in the steps A is different with the contextual sign of identification MBMS UE described in the step B.
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|---|---|---|---|---|
| CN100411377C (en) * | 2005-10-31 | 2008-08-13 | 华为技术有限公司 | Method for activating multicast service |
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| US20030157949A1 (en) * | 2002-02-19 | 2003-08-21 | Sinikka Sarkkinen | Method and system for a multicast service announcement in a cell |
| US20030189914A1 (en) * | 2002-04-09 | 2003-10-09 | Huawei Technologies Co., Ltd. | Method for implementing Iu-Flex based MBMS |
| US20030194992A1 (en) * | 2002-04-09 | 2003-10-16 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting control information for multimedia broadcast/multicast service in a mobile communication system |
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