CN101163332B - Method for mobile communication system roaming user to access to multicast service - Google Patents
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- CN101163332B CN101163332B CN2006101611807A CN200610161180A CN101163332B CN 101163332 B CN101163332 B CN 101163332B CN 2006101611807 A CN2006101611807 A CN 2006101611807A CN 200610161180 A CN200610161180 A CN 200610161180A CN 101163332 B CN101163332 B CN 101163332B
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Abstract
The invention discloses a method of accessing the roaming user of the mobile communication system to a multicast service. When the roaming user is accessed to a broadcast multicast service of the GGSN requiring roaming region of the local region from the roaming region, the BM-SC of the local region searches for the address to the BM-SC of the roaming region of the user, which achieve the authorization to the user and the APN indication of the roaming network; the BM-SC of the local region returns the APN to the SCSN or rectifies the received APN and then sends the APN to the SGSN according to route regulations and roaming agreement between operators. When the roaming user is accessed to a MBMS service of the local region from the GGSN at the roaming region, the GGSN atthe roaming region is accessed to the BM-SC at the roaming region, then searches for the address to the BM-SC of the local region of the user and achieves the authorization of the user and the APN indication of the local network; the BM-SC at the roaming region returns the APN to the SGSN or rectifies the received APN and then sends the APN to the SBSN according to the route regulations and the roaming agreement between the operators. The invention completely meets the requirement of accessing the roaming user to the MBMS service, the route for bearing the MBMS service is optimized; the present core network is not changed.
Description
Technical field
The present invention relates to mobile communication system, how to be specifically related to when the user roams in the mobile communication system method of incoming multicast broadcasting service (MBMS:Multimedia Broadcast/Multicast Service).
Background technology
At first, english term and the abbreviation that the present invention relates to described:
MBMS:Multimedia Broadcast/Multicast Service, multimedia broadcast/group broadcast service.
APN:Access Point Name, APN.
SGSN:Service GSN, core-network side is responsible for the network element of mobile management.
GGSN:Gateway GSN, core-network side is responsible for being linked into and sending out the network element of core net.
BM-SC:Broadcast-Multicast Service Centre, broadcast multicast service center.
PLMN:Public Land Mobile Network, Public Land Mobile Nerwork.
In order to effectively utilize mobile network resource, existing mobile communication system has proposed to use the thought of multicast and broadcast transport service, i.e. MBMS.MBMS provides the point-to-multipoint service of a data source to a plurality of users send data in the mobile network, realize that Internet resources are shared, raising utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.
MBMS provides dual mode: broadcast mode and multicast mode.MBMS can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, multimedia broadcast/multicast service MBMS is based on the WCDMA/GSM Packet Based Network, by increasing some new functional entitys, as broadcast multicast service center BM-SC, existing packet domain functional entity such as SGSN (packet service node), GGSN (packet gateway node), RAN (Radio Access Network) and UE (user terminal) are increased the MBMS function, and defined new logic shared channel and realize that interface-free resources shares.The network architecture of use MBMS as shown in Figure 1 under the mobile communication system.
Among Fig. 1, except BM-SC, all be the carrying network element of mobile communication system, finish data-transformation facility.Signaling exchange between GGSN and the BM-SC is carried out in the Gmb reference point, realizes the chain of command of MBMS, comprises following signaling:
-GGSN sets up the bearer context of MBMS and registers at BM-SC.
-GGSN or BM-SC discharge the MBMS bearer context, and GGSN goes registration at BM-SC.
-BM-SC begins and finishes to the GGSN announcement session.
Under the current MBMS framework, suppose that BM-SC always is arranged in home network (because BM-SC stores user's information, be used for the business of user and application is authorized), and the common situation of considering to have only a BM-SC, GGSN is only mutual with the pre-configured BM-SC of acquiescence.For the bigger mobile operator of regional span, the situation that this single BM-SC is arranged in home network can not satisfy the demands, and specifically, following scene existing problems is arranged:
1, according to present MBMS framework, a BM-SC only is set among the PLMN, and the mobile communications network that has, because the overlay area is very big, the problem that has inter-provincial roaming, big mobile communications network can not only be provided with a BM-SC, certainly exists a plurality of BM-SC, for example, each province is provided with one.
2, the GPRS service of initiating as the roamer is when inserting by homing GGSN, can only be linked into ownership place BM-SC and at this moment the user may need the MBMS business on access roaming ground, such as the services such as weather of regional characteristic are arranged.
3, the GPRS service of initiating as the roamer is when inserting by roaming place GGSN, and the BM-SC that the user can only access roaming ground is the BM-SC of ownership place and at this moment possible user still needs to insert.
In sum, the problem of prior art existence comprises:
1, under the roaming condition, the user thinks the MBMS business of access roaming ground or ownership place but can not finish service authorization;
2, under the roaming condition, the user thinks the MBMS business of access roaming ground or ownership place but can not guarantee route optimization.
3, under the roaming condition, can not guarantee between operator to insert when MBMS to the roamer carries operation strategy or roaming agreement restriction the MBMS business.
Summary of the invention
Technical problem to be solved by this invention is, insert the several scenes of MBMS service needed in the roaming place at the roamer, take all factors into consideration compatibility, propose a kind of confluent solution, i.e. the method for mobile communication system roaming user to access to multicast service prior art.
For solving the problems of the technologies described above, the invention provides a kind of method of mobile communication system roaming user to access to multicast service, be used to be provided with the mobile communications network of a plurality of broadcast multicast service center BM-SC, comprise the steps:
When the roamer is linked into the broadcasting multicast service of GGSN request roaming place of ownership place from the roaming place, comprise step:
(1) homing GGSN is initiated the broadcast group broadcast authorization requests to the ownership place BM-SC of acquiescence;
(2) ownership place BM-SC inquires the BM-SC of roaming place according to this authorization requests, and initiates APN APN inquiry and service authentication request to this roaming place BM-SC;
(3) roaming place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish service verification and APN indication to this user, return APN inquiry and service verification is replied to ownership place BM-SC, wherein carry APN information and service verification result;
(4) ownership place BM-SC is according to replying that the roaming place BM-SC that receives returns, ownership place BM-SC may be according to runing the APN that strategy and protocol modification are received, return user-authorization-answer and give homing GGSN, the APN information and the Authorization result that wherein have modification, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
The present invention further comprises:
As roamer during, comprise step from the broadcasting multicast service of the GGSN access belonging area of roaming place:
(11) roaming place GGSN initiates the broadcast group broadcast authorization requests to the roaming place BM-SC of acquiescence;
(12) roaming place BM-SC inquires the BM-SC of ownership place according to this authorization requests, and initiates APN APN inquiry and service authentication request to this ownership place BM-SC;
(13) ownership place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish service verification and APN indication to this user, return APN inquiry and service verification is replied to roaming place BM-SC, wherein carry APN information and service verification result;
(14) roaming place BM-SC is according to replying that the ownership place BM-SC that receives returns, roaming place BM-SC may be according to runing the APN that strategy and protocol modification are received, return user-authorization-answer and give roaming place GGSN, the APN information and the Authorization result that wherein have modification, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
The present invention and then a kind of method of mobile communication system roaming user to access to multicast service is provided is applied to be provided with in the mobile communications network of a plurality of broadcast multicast service center BM-SC, comprises the steps:
As roamer during, comprise step from the broadcasting multicast service of the GGSN access belonging area of roaming place:
(a) roaming place GGSN initiates the broadcast group broadcast authorization requests to the roaming place BM-SC of acquiescence;
(b) roaming place BM-SC inquires the BM-SC of ownership place according to this authorization requests, and initiates APN APN inquiry and service authentication request to this ownership place BM-SC;
(c) ownership place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish service verification and APN indication to this user, return APN inquiry and service verification is replied to roaming place BM-SC, wherein carry APN information and service verification result;
(d) roaming place BM-SC is according to replying that the ownership place BM-SC that receives returns, roaming place BM-SC may be according to runing the APN that strategy and protocol modification are received, return user-authorization-answer and give roaming place GGSN, the APN information and the Authorization result that wherein have modification, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
The present invention has solved the demand that the roamer inserts the MBMS business fully, and MBMS service bearer routing optimality does not have change to existing core net.
Description of drawings
Fig. 1 is the network architecture diagram that existing mobile communication system inserts MBMS;
Fig. 2 is roamer's access roaming ground BM-SC flow chart when inserting GPRS by homing GGSN;
Fig. 3 when to be the roamer by homing GGSN insert GPRS the MBMS behind the access roaming ground BM-SC carry routing diagram;
Fig. 4 is roamer's access belonging area BM-SC flow chart when inserting GPRS by roaming place GGSN;
Fig. 5 is roamer's MBMS carrying routing diagram behind the access belonging area BM-SC when inserting GPRS by roaming place GGSN.
Embodiment
The present invention is divided into access BM-SC and professional BM-SC with BM-SC.Insert BM-SC and be meant the pairing default BM-SC of GGSN that the current multicast service of user is connected, professional BM-SC is meant the BM-SC under the service source.When inserting BM-SC and be professional BM-SC, the route of data is optimum often.According to this principle, the present invention realize the consistent of two BM-SC by redistributing of authorization negotiation between BM-SC and GGSN or satisfy routing rule and operator between roaming agreement etc.Specifically may further comprise the steps:
(1) when the user is professional from the GGSN access roaming ground MBMS of roaming place, perhaps when professional, insert BM-SC and be professional BM-SC from the GGSN access belonging area MBMS of ownership place, need to finish the negotiation of service authorization between two BM-SC.
(2) roamer is linked into the MBMS of GGSN request roaming place of ownership place when professional from the roaming place, the BM-SC that the BM-SC of ownership place (promptly inserting BM-SC) can be addressed to user's roaming network according to id information (as IMSI) and multicast address by the user, be professional BM-SC, professional BM-SC finishes the APN indication to this user's mandate and roaming network.Insert the APN that BM-SC may receive according to operation strategy and protocol modification, the APN of mandate successful respond and modification is returned to the SGSN of roaming place through homing GGSN, activate relevant MBMS context according to new APN, set up associated tunnel by SGSN.This scene is shown in following embodiment 1.
(3) roamer is from the MBMS of the GGSN access belonging area of roaming place when professional, roaming place GGSN inserts at first to arrive and inserts BM-SC, insert the BM-SC that id information (as IMSI) and the multicast address of BM-SC by the user can be addressed to user's home network, be professional BM-SC, professional BM-SC finishes this user's mandate and APN indication.Insert the APN that BM-SC may receive according to operation strategy and protocol modification, the APN of mandate successful respond and modification is returned to the SGSN of roaming place through roaming place GGSN, activate relevant MBMS context according to new APN, set up associated tunnel by SGSN.This scene is shown in following embodiment 2.
Below in conjunction with accompanying drawing, describe the concrete enforcement of technical solution of the present invention in detail:
Specific embodiment 1: the roamer adds roaming place BM-SC flow process.
This flow process occurs in the user need add the business of certain roaming place based on the MBMS session, and this moment, the user set up the GPRS route by homing GGSN.Flow process details such as Fig. 2: wherein except that step 203a-d, all flow processs are identical with existing standard.
Step 201:, activate PDP Context at UE, roaming place SGSN, homing GGSN if the user does not have the PDP Context of activation.
Step 202: send IGMP join message and add multicast group.
Step 205:SGSN request UE carries out the MBMS context activation, and brings UE APN.
Step 206:UE initiates MBMS and activates request, and sets up the MBMS context.
Step 207: do not set up the MBMS user's context, SGSN will send the MBMSNotification refuse information to homing GGSN.Wherein, 207a is the refusal request, and 207b is for replying.
Step 208: as required,, carry out safety function as the user is authenticated.
Under the step 209:A/Gb pattern, if activated BSS Trace, SGSN will send the Trace request.
Step 210:SGSN sets up the MBMS context, and is resolved to roaming place GGSN according to the APN that BM-SC returns, and sends and sets up the MBMS context request to roaming place GGSN.
Step 211: roaming place GGSN sends the MBMS authentication request to roaming place BM-SC.Wherein 211a is an authorization requests, and 211b is an authorization response.
Step 212:, initiate the MBMS register requirement to roaming place BM-SC if roaming place GGSN does not have this MBMS bearer context.Wherein 212a is a register requirement, and 212b is the registration response.
Step 213: roaming place GGSN sets up the MBMS user's context, sets up the MBMS context to the SGSN transmission and replys.
Step 214:, send the MBMS register requirement to roaming place GGSN if SGSN does not have this MBMS bearer context.Wherein 214a is a register requirement, and 214b is the registration response.
Step 215:SGSN provides MBMS user's context to RAN.
Step 216:SGSN replys MBMS and activates acceptance to UE.
As shown in Figure 3, be the route schematic diagram of MBMS after activating successfully.
Specific embodiment 2: the roamer adds ownership place BM-SC flow process.
This flow process occurs in the user need add the business of certain ownership place based on the MBMS session, and this moment, the user set up the GPRS route by roaming place GGSN.Flow process details such as Fig. 4: wherein except that 403a-d, the same existing standard of all flow processs.Route after MBMS activates successfully as shown in Figure 5.
Step 401:, activate PDP Context at UE, roaming place SGSN, roaming place GGSN if the user does not have the PDP Context of activation.
Step 402: send IGMP join message and add multicast group.
Step 405:SGSN request UE carries out the MBMS context activation, and brings UE APN.
Step 406:UE initiates MBMS and activates request according to the APN that receives.
Step 407: do not set up the MBMS user's context, SGSN will send the MBMSNotification refuse information to roaming place GGSN.Wherein, 407a is the refusal request, and 407b is for replying.
Step 408: as required,, carry out safety function as the user is authenticated.
Under the step 409:A/Gb pattern, if activated BSS Trace, SGSN will send the Trace request.
Step 410:SGSN sets up the MBMS context, and is resolved to homing GGSN according to the APN that BM-SC returns, and sends to set up the MBMS context request to homing GGSN.
Step 411: homing GGSN sends the MBMS authentication request to ownership place BM-SC.Wherein 411a is an authorization requests, and 411b is an authorization response.
Step 412:, initiate the MBMS register requirement to ownership place BM-SC if homing GGSN does not have this MBMS bearer context.Wherein 412a is a register requirement, and 412b is the registration response.
Step 413 homing GGSN is set up the MBMS user's context, sets up the MBMS context to the SGSN transmission and replys.
Step 414:, send the MBMS register requirement to homing GGSN if SGSN does not have this MBMS bearer context.Wherein 414a is a register requirement, and 414b is the registration response.
Step 415:SGSN provides MBMS user's context to RAN.
Step 416:SGSN replys MBMS and activates acceptance to UE.
Claims (12)
1. the method for a mobile communication system roaming user to access to multicast service is used to be provided with the mobile communications network of a plurality of broadcast multicast service center BM-SC, it is characterized in that, comprises the steps:
When the roamer is linked into the broadcasting multicast service of GGSN request roaming place of ownership place from the roaming place, comprise step:
(1) homing GGSN is initiated the broadcast group broadcast authorization requests to the ownership place BM-SC of acquiescence;
(2) ownership place BM-SC inquires the BM-SC of roaming place according to the entrained user's of this authorization requests id information and multicast address information, and initiates APN APN inquiry and service authentication request to this roaming place BM-SC;
(3) roaming place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish service verification and APN indication to this user, return APN inquiry and service verification is replied to ownership place BM-SC, wherein carry APN information and service verification result;
(4) ownership place BM-SC is according to replying that the roaming place BM-SC that receives returns, return user-authorization-answer and give homing GGSN, the APN information and the Authorization result that wherein have modification, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
2. the method for claim 1 is characterized in that, further comprises:
As roamer during, comprise step from the broadcasting multicast service of the GGSN access belonging area of roaming place:
(11) roaming place GGSN initiates the broadcast group broadcast authorization requests to the roaming place BM-SC of acquiescence;
(12) roaming place BM-SC inquires the BM-SC of ownership place according to the entrained user's of this authorization requests id information and multicast address information, and initiates APN APN inquiry and service authentication request to this ownership place BM-SC;
(13) ownership place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish service verification and APN indication to this user, return APN inquiry and service verification is replied to roaming place BM-SC, wherein carry APN information and service verification result;
(14) roaming place BM-SC is according to replying that the ownership place BM-SC that receives returns, return user-authorization-answer and give roaming place GGSN, the APN information and the Authorization result that wherein have modification, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
3. the method for claim 1 is characterized in that, in the described step (1), the parameter of carrying in the described authorization requests comprises user totem information and multicast address information, positional information; In the described step (2), ownership place BM-SC arrives the BM-SC of roaming place according to user ID message and multicast address information, place information inquiry.
4. method as claimed in claim 2 is characterized in that, in the described step (11), the parameter of carrying in the described authorization requests comprises user totem information and multicast address information, positional information; In the described step (12), roaming place BM-SC is according to user ID message and multicast address information, the place information inquiry BM-SC to ownership place.
5. as claim 3 or 4 described methods, it is characterized in that described user totem information comprises international mobile subscriber identity IMSI information.
6. the method for claim 1 is characterized in that, in the described step (2), the parameter of described APN inquiry and service authentication request is IMSI and multicast group address.
7. method as claimed in claim 2 is characterized in that, in the described step (12), the parameter of described APN inquiry and service authentication request is IMSI and multicast group address.
8. the method for claim 1 is characterized in that, in the described step (3), it is APN information and service verification result that described APN inquiry and service verification are replied parameter.
9. method as claimed in claim 2 is characterized in that, in the described step (13), it is APN information and service verification result that described APN inquiry and service verification are replied parameter.
10. the method for claim 1 is characterized in that, in the described step (4), described ownership place BM-SC can be according to runing the APN that strategy and protocol modification are received.
11. method as claimed in claim 2 is characterized in that, in the described step (14), described roaming place BM-SC can be according to runing the APN that strategy and protocol modification are received.
12. the method for a mobile communication system roaming user to access to multicast service is applied to be provided with in the mobile communications network of a plurality of broadcast multicast service center BM-SC, it is characterized in that, comprises the steps:
As roamer during, comprise step from the broadcasting multicast service of the GGSN access belonging area of roaming place:
(a) roaming place GGSN initiates the broadcast group broadcast authorization requests to the roaming place BM-SC of acquiescence;
(b) roaming place BM-SC inquires the BM-SC of ownership place according to the entrained user's of this authorization requests id information and multicast address information, and initiates APN APN inquiry and service authentication request to this ownership place BM-SC;
(c) ownership place BM-SC is according to APN inquiry and the service authentication request received, according to the roaming agreement between routing rule and operator, finish this user's the service verification and the APN indication of home network, return APN inquiry and service verification is replied to roaming place BM-SC, wherein carry APN information and service verification result;
(d) roaming place BM-SC is according to replying that the ownership place BM-SC that receives returns, return user-authorization-answer and give roaming place GGSN, wherein have APN information and Authorization result, and the APN information that will wherein carry of final GGSN thus returns to the SGSN of roaming place, activate relevant broadcast group broadcast context by this SGSN according to the new APN that receives, set up associated tunnel.
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| CN101321322B (en) * | 2008-06-03 | 2012-09-05 | 中国联合网络通信集团有限公司 | Business providing method |
| EP2999244B1 (en) * | 2013-06-28 | 2017-11-08 | Huawei Technologies Co., Ltd. | Data transmission method and gateway |
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| CN1735057A (en) * | 2004-08-10 | 2006-02-15 | 华为技术有限公司 | Method for building bearing in multimedia broadcast/multicast service |
| EP1675425A2 (en) * | 2004-12-23 | 2006-06-28 | Samsung Electronics Co., Ltd. | Method and apparatus for providing multimedia broadcast/multicast service according to mobility of user equipment |
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| CN1735057A (en) * | 2004-08-10 | 2006-02-15 | 华为技术有限公司 | Method for building bearing in multimedia broadcast/multicast service |
| EP1675425A2 (en) * | 2004-12-23 | 2006-06-28 | Samsung Electronics Co., Ltd. | Method and apparatus for providing multimedia broadcast/multicast service according to mobility of user equipment |
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Granted publication date: 20101110 Termination date: 20171211 |