CN100563361C - The method and apparatus of broadcast multicast service deactivation - Google Patents
The method and apparatus of broadcast multicast service deactivation Download PDFInfo
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- CN100563361C CN100563361C CNB2007100742711A CN200710074271A CN100563361C CN 100563361 C CN100563361 C CN 100563361C CN B2007100742711 A CNB2007100742711 A CN B2007100742711A CN 200710074271 A CN200710074271 A CN 200710074271A CN 100563361 C CN100563361 C CN 100563361C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
Abstract
The present invention relates to wireless communication field, a kind of method and apparatus of broadcast multicast service deactivation is disclosed, initiate roaming the flow process of UE deexcitation broadcasting multicast service by BM-SC, in time the described broadcasting multicast service UE context of deletion on UE and each network equipment by home network.Make the user when having no right to enjoy broadcasting multicast service, network side can stop service timely, avoids the service provider to run the forfeiture of rate.
Description
Technical field
The present invention relates to wireless communication field, particularly the broadcast group broadcast technology.
Background 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.Such as, network services such as Internet are downloaded, browsed at a high speed to visual telephone, picture.Wherein have a class business features to be: can in wireless network, subscribe to simultaneously should business a plurality of users send information.Such as, send weather forecast, news film, sports tournament collection of choice specimens information etc.The characteristics of utilizing these business to send simultaneously, 3-G (Generation Three mobile communication system) has been introduced the notion of multicast/broadcast from Rel-6 (sixth version), can more effectively utilize air interface resource, and higher power system capacity is provided.
In the broadcasting/packet service, 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.
As shown in Figure 1, existing third generation partner program (3rd Generation PartnershipProject, be called for short " 3GPP ") in, support the wireless network architecture of broadcasting/packet service to comprise broadcast/multicast service center (BM-SC, Broadcast/Multicast-Service Centre), BM-SC is by Gmb interface or Gi interface and ggsn (Gateway GPRSSupport Node, be called for short " GGSN ") link to each other, a BM-SC can link to each other with a plurality of GGSN; GGSN links to each other by Gn/Gp interface and service universal grouping wireless business supporting node (Serving GPRSSupport Node is called for short " SGSN "), and a GGSN can link to each other with a plurality of SGSN; SGSN can pass through Iu interface and universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial RadioAccess Network, be called for short " UTRAN ") link to each other, UTRAN is by Uu interface and subscriber equipment (User Equipment then, be called for short " UE ") link to each other, SGSN also can pass through Iu/Gb interface and GSM EDGE Radio Access Network (GSM/EDGE Radio Access Network, be called for short " GERAN ") link to each other, GERAN links to each other with UE by Um Interface then.Wherein, GGSN and SGSN belong to the node in the core net in the wireless network (Core Net is called for short " CN ").Simultaneously, a BM-SC also can link to each other with a plurality of BM-SC that belong to other PLMNs (Public Lands Mobile Network is called for short " PLMN "), thereby makes the UE that roams into other networks also can realize the MBMS business.
With network carrying on service of multimedia broadcast/multicast (MultimediaBroadcast/Multicast Service shown in Figure 1, be called for short " MBMS ") be example, BM-SC provides the multi-medium broadcast/group broadcast service for MBMS user, it can be used as an access point that is used for MBMS content delivery, mandate and initiation MBMS bearer service in PLMN, and can be used for scheduling and send the MBMS transmission.
UE need carry out the deexcitation flow process when withdrawing from MBMS, the UE context of MBMS business on the deletion network side interdependent node.
UE might use the MBMS business in home network, also might use the MBMS business in visited network, and the latter is called roaming scence again.With respect in home network, using the MBMS business, use the MBMS business comparatively complicated at visited network, because two kinds of scenes are arranged, the MBMS data that a kind of UE of being receives home network to provide by visited network, another kind is that UE directly receives the MBMS data that visited network provides.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: at how roaming UE is carried out deexcitation under roaming scence, also do not have effective solution in the prior art.
Summary of the invention
In view of this, the main purpose of the embodiment of the invention is to provide a kind of method and apparatus of broadcast multicast service deactivation, makes the BM-SC of roamer's home network can initiate the roamer is used the deexcitation correctly of MBMS business.
For achieving the above object, on the one hand, the embodiment of the invention provides a kind of method of broadcast multicast service deactivation, and roaming user equipment UE carries out broadcasting multicast service at visited network, may further comprise the steps:
The broadcast multicast service center BM-SC of UE home network sends the request of deexcitation broadcasting multicast service, the BM-SC of UE visited network receives the request of deexcitation broadcasting multicast service, triggers the contextual flow process of the described broadcasting multicast service UE of deletion on UE and each network equipment.
On the one hand, the embodiment of the invention also provides a kind of broadcast multicast service center equipment, comprising:
Receiving element: be used to receive the deexcitation broadcasting multicast service request of the BM-SC transmission of roaming the UE home network;
Business unit: be used for when receiving element receives the request of deexcitation broadcasting multicast service, trigger the contextual flow process of deletion this broadcasting multicast service UE on UE and each network equipment.
On the one hand, the embodiment of the invention also provides a kind of broadcast multicast service center equipment, comprising:
Transmitting element: be used for sending the request of deexcitation broadcasting multicast service to the BM-SC of roaming UE visited network;
Delete cells: after being used for the request of transmitting element transmission deexcitation broadcasting multicast service, receive the deexcitation request of the GGSN transmission of visited network, deletion respective broadcast multicast service UE context.
The main effect of embodiment of the present invention is:
Initiate roaming the flow process of UE deexcitation broadcasting main broadcaster business by BM-SC by home network, can can trigger the contextual flow process of deletion relevant broadcasts multicast service UE timely so that be not that effective broadcasting multicast service or this UE have had no right to use under the situation such as this business at the broadcasting multicast service at UE place.Make the user when having no right to enjoy broadcasting multicast service, can stop service timely, avoid the service provider to run the forfeiture of rate.
Description of drawings
Fig. 1 is a wireless network architecture of supporting broadcasting/packet service among the existing 3GPP;
Fig. 2 is the MBMS service deactivation method flow chart according to first embodiment of the invention;
Fig. 3 is the MBMS service deactivation method flow chart according to second embodiment of the invention;
Fig. 4 is the BM-SC structural representation according to third embodiment of the invention;
Fig. 5 is the BM-SC structural representation according to four embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Broadcasting multicast service has different titles in different systems, the MBMS with 3GPP is that example describes in the following embodiments.
First execution mode of the present invention relates to the MBMS service deactivation method.
In first execution mode, the business data flow of MBMS is provided by visited network, and bearer service is that the BM-SC from visited network is created to UE, and the BM-SC in the home network works when authorizing.Under roaming scence, broadcasting multicast service when the UE place is not that effective broadcasting multicast service or this UE have had no right to use this business, may be such as: network side owing to chargeing or reason such as mandate need be with a certain particular UE deexcitation, so in the deactivation process, BM-SC by this particular UE home network initiates deactivation process, delete the MBMS UE context on the BM-SC in the visited network.Idiographic flow as shown in Figure 2.
Step 201: the BM-SC of home network notifies it that this UE is removed from a certain specific MBMS business to the deexcitation request of the BM-SC of visited network transmission to UE.Carry Diameter Session ID (Diameter Session ID) in this deexcitation request, this Diameter Session ID can identify the session that needs termination;
This deexcitation request also can be carried on to be abandoned in the conversation request message (Abort-Session-Request is called for short " ASR message ").
Step 202: the GGSN (be called for short " VGGSN ") of the BM-SC of visited network in visited network sends the deexcitation request of going UE, notifies its UE that will roam to remove from a certain specific MBMS business; Can be in this deexcitation request including but not limited to the Diameter Session ID, also might comprise some other parameter, comprise IP multicast address, APN (Access Point Name, be called for short " APN ") and international mobile station identity number (International Mobile Station Identity, be called for short " IMSI "), leave the multicast service that identifies by this IP multicast address with indication UE attempt;
This deexcitation request can be carried in the ASR message.
Step 203:VGGSN receives the deexcitation request that the BM-SC of visited network sends, and the transmission deexcitation responds the BM-SC to visited network.
Step 204: the BM-SC of visited network receives the deexcitation response that VGGSN sends, and the transmission deexcitation responds the BM-SC to home network.
Need to prove that step 203 does not have strict sequential restriction, in ensuing flow process, can be before step 205, afterwards, simultaneously send all can, to the not influence of embodiment of the invention technical scheme.
Need to prove that simultaneously step 204 does not have strict sequential restriction, in ensuing flow process, can be before step 205, afterwards, simultaneously send all can, to the not influence of embodiment of the invention technical scheme, but can after step 203, send.
In a single day step 205:VGGSN receives the reason to UE deexcitation request or GGSN oneself, and VGGSN sends a MBMS UE context deexcitation request (MBMS UE ContextDeactivation Request) to SGSN.This MBMS UE context deexcitation request can including but not limited to parameter comprise IP multicast address, APN and IMSI.IP multicast address, APN and IMSI have identified the MBMS UE context that need be deleted by SGSN.
Step 206:SGSN sends a MBMS UE context deexcitation response (MBMS UE Context Deactivation Response) to VGGSN, responds it and has received MBMS UE context deexcitation request.
In a single day step 207:SGSN receives MBMS UE context deexcitation request, SGSN sends a deexcitation MBMS context request (Deactivate MBMS UE Context Request) (its parameter can comprise TI) and gives UE, the MBMS UE context that parameter TI sign need be deleted by UE.
Step 208:UE deletion MBMS UE context, and to a SGSN transmission deexcitation MBMS context response (Deactivate MBMS UE Context Response), its parameter can comprise TI.
Step 209a:, and be in linking status with RAN if UE is in PMM-Connected (the bag mobile management connects) state.SGSN can send MBMS UE to RNC and go linking request (MBMS UE De-Linking Request) (its parameter can comprise IP multicast address, APN and TMGI).
Step 209b:RAN deletes MBMS UE context and returns MBMS UE to SGSN and go link response (MBMS UE De-Linking Response).
Step 210: 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 UE is transferred in the middle of the private resource.
It should be noted that step 209 and step 210, all is optional steps.
Step 211: if received that deexcitation MBMS context is accepted or the reason of SGSN oneself, SGSN sends a deletion MBMS context request (Delete MBMSContext Request) that contains network layer Service Access Point Indicator (Network Layer Service AccessPoint Identifier is called for short " NSAPI ") to having the contextual GGSN of MBMS UE.
At this moment, having the contextual GGSN of MBMS UE may be VGGSN in the step 202, also might be that other may preserve the contextual GGSN of MBMS UE.
Step 212:GGSN deletion MBMS UE context sends a deexcitation indication (Deactivation Indication) the MBMS UE context of having confirmed successful deexcitation for the BM-SC of visited network.
Step 213: the BM-SC in the visited network sends an acknowledge message to GGSN after receiving the deexcitation indication.
Step 214a: if no user receives this MBMS multicast service among the GGSN, and " the downstream node listing " of corresponding MBMS bearer context is empty, and GGSN sends a MBMS for the BM-SC in the visited network and goes register requirement (MBMS Deregistration Request).
Step 214b: the MBMS of BM-SC feedback in the visited network goes registration response (MBMSDeregistration Response), and with in its MBMS bearer context, the sign of this GGSN is deleted from " downstream node listing " parameter.
It should be noted that step 214a and step 214b, all is optional steps.
Step 215:GGSN sends a deletion MBMS context response (DeleteMBMS Context Response) to SGSN, the MBMS UE context of having confirmed deexcitation.SGSN deletion MBMS UE context.
Step 216a: 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 register requirement (MBMS Deregistration Request) to MBMS of GGSN transmission.
MBMS of step 216b:GGSN feedback goes registration response (MBMS DeregistrationResponse), and with in its MBMS bearer context, the sign of this SGSN is deleted from " downstream node listing " parameter.
Can know that by top explanation owing to chargeing or reason such as mandate, with the demand of a certain specific user's deexcitation, deactivation process can be triggered by the BM-SC of UE home network, also can be by the BM-SC of GGSN, visited network, or SGSN triggers and realizes.
Second execution mode of the present invention also relates to the MBMS service deactivation method, and the flow process of this execution mode as shown in Figure 3.Second execution mode is similar substantially to first execution mode,
The application scenarios of second execution mode is different with first execution mode, the business data flow of MBMS is provided by home network, bearer service is that the BM-SC from home network is created to UE, and the BM-SC in the visited network has just played the effect that signaling is transmitted in the service authorization in the first time.Do not have MBMS UE context among the BM-SC of visited network, do not need deletion.Idiographic flow as shown in Figure 3.
Step 301-311 is identical with step 201-211 in first execution mode respectively, repeats no more herein.
In the step 312, GGSN deletion MBMS UE context sends the deexcitation indication MBMS UE context of having confirmed successful deexcitation directly for BM-SC in the home network.
In the step 313, after the BM-SC in the home network receives the deexcitation indication, deletion MBMS UE context, and to acknowledge message of GGSN transmission.
Among the step 314a, 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 register requirement for the MBMS of BM-SC transmission in the home network.
Among the step 314b, the MBMS of BM-SC feedback in the home network goes the registration response, and with in its MBMS bearer context, the sign of this GGSN is deleted from " downstream node listing " parameter.
It should be noted that step 314a and step 314b, all is optional steps.
Step 315-316b is identical with step 215-216b respectively.
Can know that by top explanation owing to chargeing or reason such as mandate, with the demand of a certain specific user's deexcitation, deactivation process can be triggered by the BM-SC of UE home network, also can be by the BM-SC of GGSN, visited network, or SGSN triggers and realizes.
The 3rd execution mode of the present invention relates to a kind of BM-SC, comprising:
Receiving element 401: be used to receive the deexcitation broadcasting multicast service request of the BM-SC transmission of roaming the UE home network;
Business unit 402: be used for when receiving element receives the request of deexcitation broadcasting multicast service, trigger the contextual flow process of deletion this broadcasting multicast service UE on UE and each network equipment.
Delete cells 403: be used for after business unit triggers the contextual flow process of deletion this broadcasting multicast service UE, when the deexcitation request of receiving from GGSN, deletion respective broadcast multicast service UE context.
Above-mentioned each unit all is a logical block, can realize in different physical modules, also can realize in same physical module.So that various titles to be arranged, as long as but have above-mentioned functions and just can realize effect of the present invention, protection scope of the present invention just belonged to.Being appreciated that function related in each unit all is not difficult to realize by known technology, is that present prior art does not realize purpose of the present invention by the inventive combination of these functions.
For example, Fig. 4 shows a kind of implementation of physical module, but Fig. 4 is an example, also may be by other different realization form, but all be partition or combination to function, all belong to protection scope of the present invention.
The 4th execution mode of the present invention relates to a kind of BM-SC, comprising:
Transmitting element 501: be used for deexcitation broadcasting multicast service request to the BM-SC transmission of roaming UE visited network;
Delete cells 502: after being used for the request of transmitting element transmission deexcitation broadcasting multicast service, receive the deexcitation request of the GGSN transmission of visited network, deletion respective broadcast multicast service UE context.
Encapsulation unit 503: be used for deexcitation broadcasting multicast service request, carry and be used for identifying the Diameter Session ID that needs to stop session in the transmitting element transmission.
Above-mentioned each unit all is a logical block, can realize in different physical modules, also can realize in same physical module.So that various titles to be arranged, as long as but have above-mentioned functions and just can realize effect of the present invention, protection scope of the present invention just belonged to.Being appreciated that function related in each unit all is not difficult to realize by known technology, is that present prior art does not realize purpose of the present invention by the inventive combination of these functions.
For example, Fig. 5 shows a kind of implementation of physical module, but Fig. 5 is an example, also may be by other different realization form, but all be partition or combination to function, all belong to protection scope of the present invention.
In sum, initiate roaming the flow process of UE deexcitation broadcasting main broadcaster business by BM-SC by home network, can can trigger the contextual flow process of deletion relevant broadcasts multicast service UE timely so that be not that effective broadcasting multicast service or this UE have had no right to use under the situation such as this business at the broadcasting multicast service at UE place.Make the user when having no right to enjoy broadcasting multicast service, can stop service timely, avoid the service provider to run the forfeiture of rate.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. the method for a broadcast multicast service deactivation, roaming user equipment UE carries out broadcasting multicast service at visited network, it is characterized in that, may further comprise the steps:
The broadcast multicast service center BM-SC of described UE home network sends the request of deexcitation broadcasting multicast service, the BM-SC of described UE visited network receives the request of described deexcitation broadcasting multicast service, triggers the contextual flow process of the described broadcasting multicast service UE of deletion on described UE and each network equipment.
2. the method for broadcast multicast service deactivation according to claim 1, it is characterized in that, when the broadcasting multicast service that described UE left is provided by the BM-SC of described visited network, need the contextual network equipment of the described broadcasting multicast service UE of deletion comprise the access network equipment of described visited network, described visited network service universal grouping wireless business supporting node SGSN, have the BM-SC of the contextual ggsn GGSN of MBMS UE, visited network.
3. the method for broadcast multicast service deactivation according to claim 2, it is characterized in that, when the broadcasting multicast service that described UE left is provided by the BM-SC of described visited network, delete the described broadcasting multicast service UE context among the BM-SC of described visited network by following steps:
The described contextual GGSN of MBMS UE that has sends the deexcitation indication to the BM-SC of visited network, the BM-SC of described visited network deletes described broadcasting multicast service UE context, and the BM-SC of described visited network sends the deexcitation affirmation to the described contextual GGSN of MBMS UE that has again.
4. the method for broadcast multicast service deactivation according to claim 1, it is characterized in that, when the broadcasting multicast service that described UE left is provided by the BM-SC of described home network, need the contextual network equipment of the described broadcasting multicast service UE of deletion comprise the access network equipment of described visited network, described visited network SGSN, have the BM-SC of contextual GGSN of MBMS UE and home network.
5. the method for broadcast multicast service deactivation according to claim 4, it is characterized in that, when the broadcasting multicast service that described UE left is provided by the BM-SC of described home network, the described contextual GGSN of MBMS UE that has sends the deexcitation indication to the BM-SC of home network, and the BM-SC of this home network deletes described broadcasting multicast service UE context.
6. according to the method for each described broadcast multicast service deactivation in the claim 1 to 5, it is characterized in that,
The BM-SC of described home network comprises the Diameter Session ID that is used for identifying needs termination session in the described deexcitation request that the BM-SC of described visited network sends.
7. a broadcast multicast service center equipment is characterized in that, comprising:
Receiving element: be used to receive the deexcitation broadcasting multicast service request of the BM-SC transmission of roaming the UE home network;
Business unit: be used for when receiving element receives the request of deexcitation broadcasting multicast service, trigger the contextual flow process of deletion this broadcasting multicast service UE on UE and each network equipment.
8. broadcast multicast service center equipment according to claim 7 is characterized in that, also comprises:
Delete cells: be used for after business unit triggers the contextual flow process of deletion this broadcasting multicast service UE, when the deexcitation indication of receiving from GGSN, deletion respective broadcast multicast service UE context.
9. a broadcast multicast service center equipment is characterized in that, comprising:
Transmitting element: be used for sending the request of deexcitation broadcasting multicast service to the BM-SC of roaming UE visited network;
Delete cells: after being used for transmitting element and sending the request of described deexcitation broadcasting multicast service, receive the deexcitation indication that the GGSN of described visited network sends, deletion respective broadcast multicast service UE context.
10. broadcast multicast service center equipment according to claim 9 is characterized in that, also comprises:
Encapsulation unit: be used for deexcitation broadcasting multicast service request, carry and be used for identifying the Diameter Session ID that needs to stop session in the transmitting element transmission.
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Non-Patent Citations (2)
| Title |
|---|
| 3GPP, Technical Specification Group Services andSystem Aspects, MBMS, Architecture and functiondescription (Release 7). 3GPP TS 23.246，第7.2.0卷. 2007 |
| 3GPP, Technical Specification Group Services andSystem Aspects, MBMS, Architecture and functiondescription (Release 7). 3GPP TS 23.246，第7.2.0卷. 2007 * |
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