CN1223121C - Multimedia broadcast/multicast service method - Google Patents
Multimedia broadcast/multicast service method Download PDFInfo
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- CN1223121C CN1223121C CNB021317739A CN02131773A CN1223121C CN 1223121 C CN1223121 C CN 1223121C CN B021317739 A CNB021317739 A CN B021317739A CN 02131773 A CN02131773 A CN 02131773A CN 1223121 C CN1223121 C CN 1223121C
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Abstract
The present invention provides a multimedia broadcast/multicast service method which avoids the phenomenon that the same MBMS data flow is transferred between one RNC and a plurality of SGSNs and overcomes the problem of single point failure or difficult load balancing realization. The present invention comprises main steps: a GGSN sends MBMS service requests to the SGSNs registered by all users in the whole pool region; the SGSNs send the MBMS service requests to RNCs of the regions of registered user's devices of the SGSNs; the RNCs of all regions send the MBMS service requests to user's devices in the regions; user's devices needing MBMS service return paging response messages for the RNCs of the region of the user's devices; the RNC of each region selects one SGSN in the SGSNs registered by the users; the SGSN sends the paging response message to the GGSN; then, the GGSN sends the MBMS service data to the SGSN.
Description
Technical field
The present invention relates to Wideband Code Division Multiple Access (WCDMA) and insert (Wideband Code Division Multiple Access, hereafter " WCDMA ") multimedia broadcast/multi broadcast (the MultimediaBroadcast/Multicast Service in the communication system, hereafter " MBMS ") operational approach relates in particular to the MBMS operational approach in the WCDMA communication system that adopts the IuFlex interfacing.
Background technology
In the former WCDMA communication system, radio network controller (Radio Network Control, hereafter " RNC ") with Serving GPRS Support Node (Serving GPRS Surport Node, hereafter " SGSN ") adopts the mode of one-to-many between, promptly a RNC only is connected with a SGSN, and a SGSN can be connected with a plurality of RNC.The shortcoming of this networking mode is underaction.
Along with the development and the maturation of WCDMA technology, a kind of new connected mode has appearred between RNC and SGSN, and be about to an original RNC and only be connected with a SGSN, change into RNC of permission and be connected with a plurality of SGSN.This technology is called the IuFlex technology, and RNC and the interface between the SGSN that this is corresponding claim IuFlex interface.
The introducing of IuFlex technology for original MBMS business is brought convenient relatively effective implementation, below with reference to Fig. 1, is described the technical scheme that has been used for realizing in the WCDMA communication system of supporting the IuFlex technology MBMS business at present.
As shown in Figure 1, wherein, GGSN is a Gateway GPRS Support Node, at SGSN1, SGSN2 ... SGSNn constitutes a Chi Qu.Wherein the coverage of RNC1 and RNC2 is in the service area of SGSN1, and the coverage of RNC3 and RNC4 is in the service area of SGSN2.User equipment (UE) 1 time is in the zone that RNC1 covers in start, so according to existing registration rule, be registered on the SGSN1 under the RNC1, and UE3 is in when start in the zone that RNC3 covers, so be registered on the SGSN2 under the RNC3.That is to say that UE1 and UE3 connect by RNC1 and RNC3 and the SGSN that registered respectively.
Subsequently, as shown in Figure 2, the scope that UE3 covers from RNC3 moves to the scope that RNC1 covers.According to " NAS Node Selection Function " of IuFlex interface, UE3 will connect by RNC1 and its SGSN2 that registers.At this moment, user equipment (UE) 1 and UE3 connect with SGSN1 and SGSN2 respectively by RNC1.
When the WCDMA communication system was initiated the MBMS business, GGSN found by SGSN1, SGSN2 ... 2 subscriber equipmenies in the pond district that SGSNn constitutes are registered in respectively on SGSN1 and the SGSN2, just send the MBMS service request to these 2 SGSN.After SGSN1 and SGSN2 receive this MBMS service request, be to user Equipment UE1 and UE3 transmit this MBMS service request thereon.
As mentioned above, when the RNC2 overlay area moves to the overlay area of RNC1, it will connect by RNC1 and its registration SGSN2 at user equipment (UE) 3.So in this case, SGSN1 and SGSN2 will be by RNC1, and to the registered user's equipment of oneself, promptly UE1 and UE3 send the MBMS service request respectively.In the present example, UE1 and UE3 agree to receive the MBMS business datum, so receiving the MBMS service request, return the MBMS page response by RNC1 to SGSN1 and SGSN2 respectively, and SGSN1 and SGSN2 send to GGSN with these 2 page responses.GGSN receives page response, immediately the MBMS business datum is sent to SGSN1 and SGSN2.SGSN1 and SGSN2 send to RNC1 with same MBMS business datum respectively again, by RNC1 this MBMS business datum are sent to user equipment (UE) 1 and UE2 at last.
In like manner, if subscriber equipment is also arranged in RNC2, RNC3 and RNC4, its MBMS business procedure is identical with above-mentioned situation.
There is following shortcoming in above MBMS operational approach:
Because the SGSN1 among Fig. 2 sends identical MBMS business datum to RNC1 with SGSN2, and two data flow are promptly arranged between RNC1 and SGSN1, SGSN2, transmission be the same MBMS business datum, so cause the wasting of resources of IuFlex interface.
In addition, when subscriber equipment in the Dang Chi district increases, how identical data flow will occur between the RNC among Fig. 2 and the SGSN, and make IuFlex interface resource wasting phenomenon serious further.
In order to solve the problem of IuFlex interface resource waste, Siemens Company has proposed a kind of improvement improved plan.
Also have another kind of MBMS operational approach in the prior art, be different with said method of this method selected one as the default SGSN in advance in the SGSN that constitutes Chi Qu, and only sets up being connected at the MBMS business by this default SGSN with RNC.The problem of Iu interface resource waste in the example above having avoided thus.
Equally with reference to Fig. 1, user equipment (UE) 1 and UE3, so be registered in SGSN1 and SGSN2 under RNC1 and the RNC3 respectively, and connect by RNC1 and RNC3 and SGSN1 and SGSN2 respectively in the overlay area of RNC1 and RNC3 in start time-division other places.When as shown in Figure 2, UE3 is when the overlay area of RNC3 moves to the overlay area of RNC1, and as mentioned above, UE3 will connect by RNC1 and SGSN2.In this example, send the MBMS service request from GGSN, return page response to RNC1 respectively to UE1 and UE2, this process is the same with the situation that top example is described.Here do not repeating.Describe process after this below in detail.
Because in this example, in advance at SGSN1, SGSN2 ... be provided with a default SGSN in the pond district that SGSNn constitutes, i.e. SGSN1 be used for setting up at being connected of MBMS business with the RNC in pond district, and RNC also knows this default SGSN 1.So after RNC1 receives the page response that UE1 and UE3 return, connect with this default SGSN 1 immediately, and send the page response of UE1 and UE3 to it.Then default SGSN 1 sends to GGSN with page response.
Those of ordinary skill in the art know that the page response when GGSN receives UE1 and UE3 can issue the MBMS business datum to SGSN1 and the SGSN2 that UE1 and UE3 registered respectively.Because in the present embodiment, RNC1 has only set up being connected at the MBMS business with default SGSN 1, so though SGSN1 and SGSN2 have received the MBMS business datum, but among both only default SGSN 1 send the MBMS business datum to RNC1, by RNC1 above-mentioned MBMS business datum is sent to UE1 and UE2 respectively then.This MBMS business is finished.
The MBMS operational program that above-mentioned example is described has solved the wasting of resources problem of IuFlex interface, but still has following shortcoming:
1. bear the MBMS business by a default SGSN regularly in the district of a pond, in case break down in this default SGSN, whole pond district scope all can't normally provide MBMS business, promptly forms Single Point of Faliure.
2. when the MBMS traffic carrying capacity in the district of pond was big, the professional impact of a large amount of MBMS was born with need in the default SGSN 1 among Fig. 2, may cause default SGSN 1 excessive loads.
3. other the non-default SGSN resources in the district of a pond can't be used, and can't realize the load balancing to the MBMS business.
Summary of the invention
The object of the present invention is to provide a kind of MBMS operational approach of in the WCDMA communication system of supporting the IuFlex technology, using.By this MBMS operational approach, neither can appear at the phenomenon of the same MBMS data flow of transmission between a RNC and the some SGSN, also can not adopt a default SGSN bear the transmission of MBMS data flow, and cause above-mentioned Single Point of Faliure or be difficult to realize the problem of load balancing owing to fixing.
In the multimedia broadcast/multi broadcast business method provided by the invention, what adopt between RNC and the SGSN is the InFlex interface, comprises following steps: the a.GGSN SGSN that all subscriber equipmenies are registered in the district of whole pond respectively sends multimedia broadcast/multi broadcast (MBMS) service request; B. each SGSN sends to described MBMS service request the RNC of its registered user's equipment region; C. each regional RNC sends to the interior subscriber equipment in its zone with described MBMS service request; D. need the subscriber equipment of MBMS business to return page-response message, do not need the subscriber equipment of MBMS business not return response message to the RNC of its region; E. each regional RNC is according to the page-response message returned of subscriber equipment in its zone, in a plurality of SGSN that these users registered, select a SGSN, and send the page-response message of these subscriber equipmenies, and set up connection with it at the MBMS business to this SGSN; F. the described SGSN that is selected by each regional RNC sends to GGSN with page-response message, and GGSN sends the MBMS business datum to this SGSN subsequently; G. the described SGSN that selects sends to the RNC that selects it with the MBMS business datum, and by this RNC the MBMS business datum is sent to that all need the subscriber equipment of MBMS business in its zone.
Among the present invention, step e also comprises each regional RNC of step: e1. according to the network resource identifier that comprises in the page-response message returned of subscriber equipment in its zone, determines each SGSN that these subscriber equipmenies are registered; E2. described RNC calculates the registered user's quantity on described each SGSN according to The above results; E3. described RNC selects that maximum SGSN of user Equipment quantity from each SGSN, and all need the page-response message of the subscriber equipment of MBMS business in this SGSN sends its zone, and sets up the connection at the MBMS business with it; If it is maximum having the registered user quantity of SGSN in described RNC zone more than 2 identical, then select a SGSN therein at random by this RNC.
In MBMS operational approach of the present invention, because RNC can be in several SGSN, select an access bearer of setting up the MBMS business data flow, other SGSN no longer transmit same MBMS business data flow, have therefore solved the problem of the wasting of resources of the IuFlex interface that exists in the example of Fig. 1 well.
And, be used to carry the streamed SGSN of MBMS business datum among the present invention, be to determine by the registered user's number on the SGSN at that time, so the transmission of MBMS business data flow that can not be all is all born by a fixing SGSN, therefore both avoid the Single Point of Faliure in the example of Fig. 2, also solved the problem of the load balancing in this example.
Description of drawings
Below, with reference to accompanying drawing,, can make above-mentioned and other features of the present invention, advantage apparent by detailed description to preferred embodiment of the present invention.
Fig. 1 is a schematic diagram in the MBMS business procedure in the prior art;
Fig. 2 is another schematic diagram in the MBMS business procedure in the prior art;
Fig. 3 is a schematic diagram in the MBMS business procedure of the present invention;
Fig. 4 is another schematic diagram in the MBMS business procedure of the present invention.
Embodiment
As shown in Figure 3, SGSN1, SGSN2 ... SGSNn constitutes a Chi Qu, and wherein, the overlay area of RNC1 and RNC2 is in the service area of SGSN1; The overlay area of RNC3 and RNC4 is in the service area of SGSN2; The overlay area of RNCm-1, RNCm and RNCm+1 is in the service area of SGSNn.4 subscriber equipmenies are arranged in the district of above-mentioned pond.Wherein 2 user equipment (UE)s 1 and UE2 are in when start in the scope that RNC1 covers, and register principle according to existing user, and these 2 users are registered on the SGSN1 under the RNC1; In like manner, the UE3 start time is in the scope that RNC3 covers, and it is registered on the SGSN2 under the RNC3; And user equipment (UE) m start the time is in the scope that RNCm covers, so it is registered on the SGSNn under the RNCNn.
After this, user equipment (UE) 3 and UEm move to the overlay area of RNC1 respectively from the overlay area of original RNC2 and RNCn, principle according to " NAS Node Selection Function " of Iuflex interface, after user equipment (UE) 3 and UEm move to the overlay area of RNC1, will connect by SGSN2 and the SGSNn that RNC1 and they are registered separately.In this case, when the WCDMA communication system was initiated a MBMS business, the GGSN among Fig. 3 found to have 4 subscriber equipmenies in this pond district, is registered in respectively on SGSN1, SGSN2 and the SGSNn, just sends the MBMS service request to these 4 SGSN.See arrow 1a, 1b and 1n among Fig. 3.
As mentioned above, because 4 subscriber equipmenies are all in the zone that RNC1 covered, and be connected with the SGSN of registration separately by RNC1 respectively, so SGSN1, SGSN2 and SGSNn send MBMS service paging message to RNC1, notify the registered user's equipment of oneself, see arrow 2a, 2b and 2n among Fig. 3.By RNC1 this beep-page message is transmitted to this 4 subscriber equipmenies respectively subsequently, sees arrow 3a, 3b and 3n among Fig. 3.If user equipment agrees receives the MBMS data, then can return page response to RNC1, in the present embodiment, 4 subscriber equipmenies all agree to receive the MBMS data, so these 4 subscriber equipmenies will return page response to RNC1 respectively.
In above-mentioned each page response, all comprise a network resource identifier---Network ResourceIdentifier, be called for short NRI below.Those of ordinary skill in the art should be known in that NRI identifies a SGSN uniquely in the pond district that is made of a plurality of SGSN in the WCDMA communication system that adopts IuFlex.That is to say the SGSN1 among Fig. 3, SGSN2 ... SGSNn is identified by unique N RI respectively.Therefore, which SGSN RNC1 can judge this user equipment registration on by reading the parameter N RI that comprises in the page response from subscriber equipment.
According to above-mentioned principle, the present invention is provided with a step in the MBMS business, promptly analyze the page response that each subscriber equipment sends by RNC, judge the SGSN that subscriber equipment is registered by unique N RI wherein, and calculate the maximum SGSN of registered user, and set up being connected at the MBMS business with this SGSN.
In the present embodiment, as shown in Figure 3, when RNC1 receives the page response of 4 subscriber equipmenies,, analyze user equipment (UE) 1 by above-mentioned parameter NRI, UE2 is registered on the SGSN1; UE3 is registered on the SGSN2; UEm is registered on the SGSNn.And it is maximum to judge the number of user equipment that is registered on the SGSN1 according to this analysis result.Then, RNC1 selects the maximum SGSN of registered user, and promptly SGSN1 sends the MBMS service paging response of UE1, UE2, UE3 and UEm to it, and sets up RAB with it.Need to prove, this moment RNC1 no longer with remaining SGSN, promptly SGSN2 and SGSNn send the response of MBMS service paging, also do not set up above-mentioned RAB.
SGSN1 receives after the above-mentioned MBMS service paging response, will send response to GGSN, and GGSN will send to RNC1 with the MBMS business datum by SGSN1 subsequently.Then respectively this MBMS business datum is sent in front and return user equipment (UE) 1, UE2, UE3 and the UEm of the response of MBMS service paging to it in the step by RNC1.Thereby finish whole M BMS business procedure.
Though present embodiment has only been described the MBMS business procedure of the subscriber equipment in the RNC1 overlay area, those skilled in the art can release when in the overlay area of RNC at other subscriber equipment being arranged, and the process of its MBMS business is identical.In addition, when the number of the registered user's equipment on 2 above SGSN is identical, then select at random by RNC.
MBMS operational approach advantage of the present invention is:
1. save the IuFlex interface resource;
2. avoid sending the MBMS business datum and " Single Point of Faliure " and the problem of load balancing that may cause by the default SGSN.
More than be detailed description, make those skilled in the art that to understand and carry out the present invention preferred embodiment of the present invention.But also should drop in design of the present invention and the scope other variations in detail of the present invention.
Claims (2)
1. multimedia broadcast/multi broadcast business method is characterized in that comprising step:
A. the Gateway GPRS Support Node Serving GPRS Support Node that all subscriber equipmenies are registered in the district of whole pond respectively sends multimedia broadcast/multi broadcast (MBMS) service request;
B. each Serving GPRS Support Node sends to described MBMS service request the radio network controller of its registered user's equipment region;
C. each regional radio network controller sends to the interior subscriber equipment in its zone with described MBMS service request;
D. need the radio network controller of subscriber equipment to its region of MBMS business to return page-response message, do not need the subscriber equipment of MBMS business not return response message;
E. each regional radio network controller is according to the page-response message returned of subscriber equipment in its zone, in a plurality of Serving GPRS Support Nodes that these users registered, select a Serving GPRS Support Node, and send the page-response message of these subscriber equipmenies, and set up connection with it at the MBMS business to this Serving GPRS Support Node;
F. the described Serving GPRS Support Node of being selected by each regional radio network controller sends to Gateway GPRS Support Node with page-response message, and Gateway GPRS Support Node sends the MBMS business datum to this Serving GPRS Support Node subsequently;
G. the described Serving GPRS Support Node of selecting sends to the radio network controller of selecting it with the MBMS business datum, and by this radio network controller the MBMS business datum is sent to that all need the subscriber equipment of MBMS business in its zone.
2. multimedia broadcast/multi broadcast business method as claimed in claim 1 is characterized in that also comprising step at described step e:
E1. each regional radio network controller is determined each Serving GPRS Support Node that these subscriber equipmenies are registered according to the network resource identifier that comprises in the page-response message returned of subscriber equipment in its zone;
E2. described radio network controller calculates the registered user's quantity on described each Serving GPRS Support Node according to The above results;
E3. described radio network controller is selected that maximum Serving GPRS Support Node of user Equipment quantity from each Serving GPRS Support Node, and all need the page-response message of the subscriber equipment of MBMS business in this Serving GPRS Support Node sends its zone, and set up connection with it at the MBMS business; If it is maximum having the registered user quantity of Serving GPRS Support Node in described radio network controller zone more than 2 identical, then select a Serving GPRS Support Node therein at random by this radio network controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021317739A CN1223121C (en) | 2002-09-23 | 2002-09-23 | Multimedia broadcast/multicast service method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021317739A CN1223121C (en) | 2002-09-23 | 2002-09-23 | Multimedia broadcast/multicast service method |
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| CN1486002A CN1486002A (en) | 2004-03-31 |
| CN1223121C true CN1223121C (en) | 2005-10-12 |
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| CNB021317739A Expired - Fee Related CN1223121C (en) | 2002-09-23 | 2002-09-23 | Multimedia broadcast/multicast service method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274326B (en) * | 2011-07-15 | 2013-10-16 | 青岛绿曼生物工程有限公司 | Pure Chinese medicinal combination for treating piglet yellow-white dysentery and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8521139B2 (en) * | 2004-02-11 | 2013-08-27 | Qualcomm Incorporated | Transmission of notifications for broadcast and multicast services |
| CN100344092C (en) * | 2004-05-12 | 2007-10-17 | 华为技术有限公司 | Conversation method of broadcast service |
| JP4480512B2 (en) * | 2004-08-10 | 2010-06-16 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system and service control apparatus |
| CN100355316C (en) | 2005-03-26 | 2007-12-12 | 华为技术有限公司 | Broadcast multicast area management realizing method in wireless communication system |
| CN100403851C (en) * | 2006-03-13 | 2008-07-16 | 华为技术有限公司 | Method for sending paging message |
| CN101312553B (en) * | 2007-05-25 | 2011-11-30 | 中兴通讯股份有限公司 | Monitoring method for multimedia broadcast / multicast services |
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2002
- 2002-09-23 CN CNB021317739A patent/CN1223121C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274326B (en) * | 2011-07-15 | 2013-10-16 | 青岛绿曼生物工程有限公司 | Pure Chinese medicinal combination for treating piglet yellow-white dysentery and preparation method thereof |
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| CN1486002A (en) | 2004-03-31 |
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