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CN101394587A - Call implementing method, device and system in MSC Pool networking - Google Patents

Call implementing method, device and system in MSC Pool networking Download PDF

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Publication number
CN101394587A
CN101394587A CNA2007101521646A CN200710152164A CN101394587A CN 101394587 A CN101394587 A CN 101394587A CN A2007101521646 A CNA2007101521646 A CN A2007101521646A CN 200710152164 A CN200710152164 A CN 200710152164A CN 101394587 A CN101394587 A CN 101394587A
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China
Prior art keywords
page
imsi
paging
response message
media gateway
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Granted
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CNA2007101521646A
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Chinese (zh)
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CN101394587B (en
Inventor
鄂乌兰
王伟科
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2007101521646A priority Critical patent/CN101394587B/en
Priority to PCT/CN2008/072413 priority patent/WO2009036708A1/en
Publication of CN101394587A publication Critical patent/CN101394587A/en
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Publication of CN101394587B publication Critical patent/CN101394587B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/24—Interfaces between hierarchically similar devices between backbone network devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a paging implementation method in MSC Pool networking. All media gateways which are connected with an objective base station controller of the current paging record the corresponding relation between a mobile switching center and an international mobile user identification IMSI of the current paging; and the media gateways transmit paging response information according to the recorded corresponding relation. The embodiment further provides a relevant paging implementation device and a system in MSC Pool networking. The embodiment realizes that the paging response information can be sent to the mobile switching center which sends down the paging information by using the same IMSI no matter which media gateway transmits, so the calling can continue and the call loss is avoided.

Description

Achieving paging method, equipment and system in a kind of MSC Pool networking
Technical field
The present invention relates to communication technical field, relate in particular to achieving paging method, Apparatus and system in a kind of MSC Pool networking.
Background technology
At present, in 3GPP TS 23.236 agreements, propose " Pool district " this notion, had a plurality of MSC (mobile switching centre) to move concurrently in the Pool district, shared the business in the Pool district jointly.Described a plurality of MSC is divided into a plurality of MSC groups, is referred to as MSC Pool respectively.
MSC Pool networking is compared main difference with traditional networking and is: a BSC (base station controller) can be connected a plurality of MSC simultaneously, and a plurality of MSC form Pool, and BSC is connected with each MSC realization signaling in the Pool.This network configuration can improve network performance well, as realizing load sharing, reducing the switching of user's roaming etc.Realize that MSC Pool networking needs BSC to support 23.236, but owing in existing network, exist and do not support 23.236 BSC in a large number, this just need with BSC 23.236 on move on to MGW (media gateway), act on behalf of support 23.236 by MGW.
The technical scheme that present prior art one addresses the above problem is:
Act on behalf of support 23.236 by MGW and realize the Pool networkings, MSC is during with IMSI (IMSI International Mobile Subscriber Identity) calling user, MGW resolves descending beep-page message, the MSC corresponding relation of IMSI that parses and issuing page message is noted, when MGW receives the page-response message of BSC response, parse the IMSI in the page-response message, inquiry IMSI and MSC mapping table are transmitted to described MSC with this IMSI issuing page message to page-response message.
In realizing process of the present invention, the inventor finds that there is following shortcoming at least in described prior art one:
When 3GPP 23.236 agreements that realize gateway proxy realize MSC Pool networking, as shown in Figure 1, if a BSC connects a plurality of gateways, the beep-page message that carries IMSI is issued to MGW1 from MSC1, the corresponding relation of MGW1 record IMSI and MSC, then beep-page message is transmitted to BSC (paging step), page-response message reports from another gateway MGW2, search corresponding relation on the MGW2 less than IMSI and MSC, use node selection function that page-response message is sent to MSC2 (page response step), cause call failure.
Summary of the invention
The embodiment of the invention provides achieving paging method, equipment and system in a kind of MSC Pool networking, has guaranteed to call out the correct forwarding in media gateway, improves call successful rate.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides achieving paging method in a kind of MSC Pool networking, comprising:
All media gateway that link to each other with the purpose base station controller of current paging write down the mobile switching centre of current paging and the corresponding relation of IMSI International Mobile Subscriber Identity IMSI;
Described media gateway is transmitted page-response message according to the corresponding relation of described record.
The embodiment of the invention provides achieving paging method in a kind of MSC Pool networking, comprising:
All mobile switching centres among the MSC Pool receive the page-response message of media gateway broadcasting;
Mobile switching centre among the described MSC Pool judges whether paging into the current transmission of this mobile switching centre according to the IMSI International Mobile Subscriber Identity IMSI in the page-response message, when judgement is the paging of the current transmission of this mobile switching centre, then handle described page-response message.
The embodiment of the invention provides achieving paging method in a kind of MSC Pool networking, comprising:
Mobile switching centre selects the first corresponding media gateway issuing page message to base station controller according to the IMSI International Mobile Subscriber Identity IMSI of current transmission paging, described first media gateway writes down the corresponding relation of described mobile switching centre and IMSI, and the corresponding relation of IMSI and media gateway is for to preestablish according to rule;
Second media gateway that receives page-response message determines to transmit first media gateway of described page-response message according to described pre-defined rule;
Described second media gateway sends to first media gateway with described page-response message;
Described first media gateway sends to mobile switching centre with described page-response message.
The embodiment of the invention provides achieving paging system in a kind of MSC Pool networking, comprising:
Media gateway, with all media gateway that same base station controller links to each other in, record is the mobile switching centre of current paging of purpose base station controller and the corresponding relation of IMSI International Mobile Subscriber Identity IMSI with described base station controller, transmits page-response message according to described corresponding relation;
Mobile switching centre links to each other with described media gateway, is used for initiating paging, receive described page-response message and finishing the processing relevant with paging by described media gateway.
The embodiment of the invention provides a kind of mobile switching centre, comprises the paging processing unit, is used to send beep-page message, and paging receiving response message and finish the processing relevant with paging also comprises:
Radio unit is used for before described paging processing unit sends beep-page message, and the IMSI and the corresponding relation of mobile switching centre of current paging is broadcast to all media gateway that link to each other with the purpose base station controller of current paging.
The embodiment of the invention provides a kind of mobile switching centre, comprising:
The unit is set, is used for whether representing the parameter of distributing paging the beep-page message setting that sends, have only a beep-page message to carry first parameter of expression distributing paging, other beep-page messages carry not second parameter of distributing paging of identical expression;
The paging delivery unit, the beep-page message that is used for carrying described parameter is issued to all media gateway that link to each other with the purpose base station controller.
The embodiment of the invention provides a kind of media gateway, comprising:
Information identificating unit is used for according to the beep-page message that receives, and resolves and identifies IMSI International Mobile Subscriber Identity IMSI, mobile switching centre's sign and whether represent the parameter of distributing paging;
Judging unit is used for judging whether that according to described parameter needs issue described beep-page message;
The paging delivery unit is used to receive the judged result of described judging unit, issuing page message when judgement needs issuing page message.
The embodiment of the invention provides a kind of media gateway, comprising:
Recognition unit is used for identifying IMSI and mobile switching centre's corresponding relation according to the beep-page message that receives;
Notification unit is used to obtain the described IMSI that identifies and mobile switching centre's corresponding relation, and is notified to other media gateway that link to each other with the purpose base station controller of current paging.
The embodiment of the invention provides achieving paging system in a kind of MSC Pool networking, comprising:
Media gateway is used for described page-response message is broadcast to all mobile switching centres of MSC Pool;
Mobile switching centre, be used to receive the page-response message of described media gateway broadcasting, parse the IMSI in the page-response message, judge whether paging according to described IMSI into the current transmission of this mobile switching centre, when judgement is the paging of the current transmission of this mobile switching centre, then handle described page-response message.
The embodiment of the invention provides a kind of media gateway, comprising:
The page-response message receiving element is used for the paging receiving response message;
The page-response message radio unit is used for described page-response message is broadcast to all mobile switching centres of MSC Pool.
The embodiment of the invention provides a kind of mobile switching centre, comprising:
The information analysis unit, be used for parsing IMSI information from the page-response message that receives, judge whether paging into the current transmission of this mobile switching centre when judgement is the paging of the current transmission of this mobile switching centre, to receive described page-response message according to described IMSI;
The paging processing unit is used to receive the judged result of described information analysis unit, judge receive described page-response message after, accept described page-response message and carry out the relevant processing of follow-up paging.
The embodiment of the invention provides achieving paging system in a kind of MSC Pool networking, comprising:
Mobile switching centre is used for selecting corresponding media gateway issuing page message according to the IMSI International Mobile Subscriber Identity IMSI of current transmission paging, and the corresponding relation of IMSI and media gateway is for to preestablish according to rule;
Media gateway, be used to transmit the paging related news, the corresponding relation of storage IMSI and mobile switching centre, and receiving page-response message, and when not having the IMSI of page-response message correspondence of current reception and mobile switching centre corresponding relation record, according to the definite media gateway of transmitting described page-response message of the rule identical, described page-response message is transmitted to described definite media gateway with described mobile switching centre.
The embodiment of the invention provides a kind of media gateway, comprising:
Resolve memory cell, be used for parsing IMSI and mobile switching centre's corresponding relation and storage from the beep-page message that receives;
The media gateway selected cell, be used for after receiving page-response message, and when not having corresponding IMSI and mobile switching centre's corresponding relation record in the described parsing memory cell, select to transmit the media gateway of described page-response message according to the rule of the selection media gateway identical, and the page-response message of described reception is transmitted to the media gateway of described selection with mobile switching centre.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention is the MSCPool networking, when base station controller connects a plurality of media gateway, processing procedure with the IMSI calling user, realized no matter page-response message by which media gateway is transmitted, can send in the mobile switching centre with identical IMSI issuing page message, call out thus and can continue, avoid occurring call loss.
Description of drawings
Fig. 1 realizes 3GPP 23.236 agreements for the prior art gateway proxy and realizes the schematic diagram of MSC Pool networking paging;
Fig. 2 is embodiment one method flow diagram in the embodiment of the present invention one;
Fig. 3 is embodiment two method flow diagrams in the embodiment of the present invention one;
Fig. 4 is embodiment three method flow charts in the embodiment of the present invention one;
Fig. 5 is embodiment of the present invention two method flow diagrams;
Fig. 6 is embodiment of the present invention three method flow charts;
Fig. 7 is 41 kinds of embodiment schematic diagrames of embodiment of the present invention;
Fig. 8 is embodiment of the present invention four another kind of embodiment schematic diagrames;
Fig. 9 is embodiment of the present invention four another embodiment schematic diagrames;
Figure 10 is embodiment of the present invention five networking schematic diagrames;
Figure 11 is embodiment of the present invention six networking schematic diagrames.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention is mainly introduced BSC and is connected a plurality of MGW, and with the processing procedure of IMSI calling user, and situation about only linking to each other with a MGW for BSC is identical with the processing of prior art, and present embodiment is not done detailed description.The described scheme of the embodiment of the invention is applicable to the networking that all use IMSI.
Execution mode one
In the present embodiment, all write down the correspondence relationship information of the MSC and the IMSI of current distributing paging at a plurality of MGW of BSC connection, no matter follow-up which MGW receives page-response message, can send the MSC of described page-response message according to described corresponding relation to distributing paging.The specific implementation process of present embodiment is described with different embodiment below.
Embodiment one
MSC creates a private message that carries the corresponding relation of IMSI and MSC before issuing page message, and is broadcast to all MGW that link to each other with described paging purpose BSC, makes the corresponding relation of all preserving described IMSI and MSC on each MGW.As shown in Figure 2, specifically comprise following operating procedure:
Step 20:MSC creates a private message that carries IMSI and MSC corresponding relation before distributing paging, and is broadcast to all MGW that link to each other with described paging purpose BSC;
Mainly comprise in the described private message: the IMSI that carries in the sign of described MSC, the beep-page message that is about to issue.
Described MSC can broadcast described private message to all MGW that link to each other with BSC by signaling link (for example M3UA)/H.248 link.
Step 21: the MGW that receives described private message will write down the corresponding relation of IMSI and MSC;
Step 22:MSC is issued to any MGW (linking to each other with purpose BSC) with beep-page message, by described MGW beep-page message is issued to purpose BSC;
By the MSC decision which MGW is message mail to, can decides by signalling route load sharing algorithm.
Step 23: after any one MGW receives the page-response message that described purpose BSC sends,, page-response message is sent to the MSC of issuing page message, guarantee to call out normal foundation according to the IMSI of described record and the corresponding relation of MSC.
Since can carry in the page-response message with beep-page message in identical IMSI, therefore the MGW that receives page-response message searches the IMSI that write down and the corresponding relation of MSC according to this IMSI, thereby can determine which MSC is described page-response message sent to.
Embodiment two
MSC broadcasts the page message to all MGW that link to each other with purpose BSC, the MGW that receives this beep-page message resolves and writes down the corresponding relation of described MSC and IMSI, in the beep-page message of broadcasting, carry and whether represent the parameter of issuing page message, and have only a message to carry first parameter of expression issuing page message, only receive carry this first parameter MGW just issuing page message to BSC, as shown in Figure 3, specifically comprise following operating procedure:
Step 30:MSC broadcasts the page message to all MGW that link to each other with purpose BSC;
In the message of being broadcasted, carry and whether represent the parameter of issuing page message for example can in the Optional Field of beep-page message, to increase a non-agreement cell (form of cell is formulated according to concrete agreement) newly, utilize a few positions wherein to carry this parameter.Wherein have only a message to carry the first unique parameter, other message are carried the second identical parameter, receive the MGW that carries described first parameter and just can transmit beep-page message to BSC, other MGW that receive the beep-page message that carries second parameter do not transmit described beep-page message.
For example: increase a TAG cell at the Optional Field of message, and with first byte of MSC agreement Tag Value be 1 o'clock, expression MGW with forwards to BSC; Be 0 o'clock, be default value, MGW does not arrive BSC with forwards.
Step 31: the MGW that receives this beep-page message parses the IMSI in the described beep-page message, obtain corresponding MSC sign according to the signaling link (for example M3UA) of receiving beep-page message then, and obtain and whether represent the parameter of issuing page message, write down the corresponding relation of described MSC and IMSI, and judge whether that according to this parameter the needs issuing page message is to BSC, if need issue, then described beep-page message is issued to BSC, otherwise only need writes down the corresponding relation of this MSC and IMSI;
For example, described MGW need to judge whether issuing page message method can for: judge that this represents whether whether the value of the parameter of issuing page message is the default value of acquiescence, if, then do not issue this beep-page message, otherwise represent that this parameter is the first unique parameter, need issue this beep-page message.
Step 32: the follow-up MGW that receives the page-response message of described paging, according to the corresponding relation of the MSC of described record and IMSI page-response message is sent to the MSC of issuing page message, guarantee to call out normal foundation.
Embodiment three
MSC is handed down to a MGW with beep-page message, and described MGW parses the corresponding relation of IMSI and MSC, and it is notified to other MGW that link to each other with purpose BSC, and all MGW that link to each other with purpose BSC record the corresponding relation of MSC and IMSI like this.As shown in Figure 4, specifically comprise following operating procedure:
Step 40:MSC is handed down to beep-page message a MGW who links to each other with purpose BSC;
Step 41: described MGW parses the IMSI in the beep-page message, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, the corresponding relation of record IMSI and MSC;
Step 42: described MGW is notified to other MGW that link to each other with purpose BSC with described MSC with the corresponding relation of IMSI;
In order to make other MGW that link to each other with purpose BSC that the record of corresponding relation also be arranged, described MGW can be by the transmission of TCP/UDP, give described other MGW with the forwards of record corresponding relation, receive and handle by the sync cap between the MGW, make other MGW that link to each other with purpose BSC also write down the corresponding relation of IMSI and MSC.
Step 43: the described MGW that receives beep-page message is issued to purpose BSC with described beep-page message;
Described step 41,42,43 can be carried out synchronously.
Step 44: the follow-up MGW that receives the page-response message of described paging, according to the corresponding relation of the MSC of described record and IMSI page-response message is sent to the MSC of issuing page message, guarantee to call out normal foundation.
Above-mentioned three specific embodiments by with all MGW that purpose BSC links to each other on all write down the MSC of distributing paging and the corresponding relation of IMSI, make follow-up whichever MGW receive the MSC that page-response message can send it to described transmission paging, guarantee the normal foundation of paging, reduced the generation of call loss.
Execution mode two
MSC arrives purpose BSC by a MGW issuing page message, the follow-up MGW that receives page-response message, if do not write down the IMSI and the MSC corresponding relation of described page-response message correspondence, then described page-response message is broadcast to all MSC among the MSC Pool, and whether this page-response message of expression is set in described page-response message be the sign of MGW broadcasting, receive the MSC of described page-response message, judge whether the paging that sending for this MSC according to the IMSI that carries in the described message, thereby determine whether to accept and handle this page-response message, as shown in Figure 5, specifically comprise the steps:
Step 50:MSC issues beep-page message by a MGW who links to each other with purpose BSC;
By the MSC decision which MGW is message mail to, can decides by signalling route load sharing algorithm.
Step 51: described MGW parses the IMSI in the beep-page message, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, the corresponding relation of record IMSI and MSC.
Step 52: described MGW gives purpose BSC with paging delivery;
Step 53: after any MGW that links to each other with described purpose BSC receives page-response message, if have setting IMSI and the MSC corresponding relation corresponding among the described MGW, then described page-response message is provided with all MSC that are broadcast to after the sign among the MSC Pool with described page-response message;
Described sign is used for representing described page-response message whether by MGW broadcasting, and this sign can be provided with by increase a non-agreement cell in the Optional Field of page-response message.
The MSC that receives described page-response message in the step 54:MSC Pool parses IMSI and the sign in the described page-response message, judge whether the paging that sending for this MSC according to described IMSI, if the paging that this MSC is sending, then accept described page-response message, finish follow-up processing flow, the realization paging is normally set up; Paging if not this MSC is sending then can know whether the page-response message of broadcasting into MGW according to the described sign that parses, if the page-response message of MGW broadcasting then can abandon described page-response message; If not the page-response message of MGW broadcasting, then according to actual conditions, according to existing this page-response message of disposal methods, the present invention does not herein do qualification.
In the present embodiment in order to make the nonvoluntary paging related news that abandon of MSC, whether expression is set in the page-response message that MGW sends is the sign of MGW broadcasting, MSC is the page-response message of MGW broadcasting identifying only like this, and be not this MSC send the paging related news time just can abandon this page-response message.Certainly be not strict with abandoning message, or under the situation of agreement permission, the described operation that sign is set can be omitted.
Present embodiment is not by writing down the MGW of current call IMS I and MSC corresponding relation, the page-response message that receives is broadcast to all MSC in the MSC Pool, judge whether to accept described page-response message by MSC according to the IMSI in the described message, no matter realized which MGW receives page-response message and described page-response message can be sent to the MSC that sends paging, realize the normal foundation of calling, avoid the generation of call loss.
Execution mode three
All IMSI and each MGW with each MSC is mapped according to certain rule, make the MGW can corresponding a plurality of specific I MSI, receive the MGW of page-response message if do not write down the IMSI and the MSC corresponding relation of described paging, then determine to send the MGW of page-response message according to described rule, described page-response message is transmitted to described definite MGW, be handed down to the MSC that sends paging by described definite MGW, as shown in Figure 6, specifically comprise the steps:
Step 60: all IMSI on each MSC are corresponding with each MGW according to certain rule;
For example,, can utilize a few bit digital wherein,, correspond on the same numeral by calculating because IMSI is made up of 15 0～9 numeral.All IMSI on the MSC are divided according to this algorithm, form the projected forms of the corresponding numeral of a plurality of IMSI, this numeral is just represented a MGW, thus all corresponding a plurality of specific I MSI of each MGW of BSC connection;
For example: the user of 10 IMSI is arranged on MSC now, and this MSC has connected two MGW, can utilize the difference of odevity, with the corresponding MGW1 of even number IMSI, the corresponding MGW2 of odd number IMSI; Can also divide according to other algorithms, as HASH (Hash operation) algorithm etc.
And for example: system can adopt reinforcement load HASH function at random that the user of all accesses is divided into 1000 " user's pieces " equably, " user's piece " distributed to the MGW that links to each other with BSC uniformly, and the corresponding relation of each " user's piece " and MGW all recorded in user's piecemeal table, if three MGW are arranged, " user's piece " 0～333 corresponding MGW1 then, " user's piece " 334～666 corresponding MGW2, " user's piece " 667～999 corresponding MGW3, after receiving page-response message, just can determine by inquiry " user's piecemeal table " concrete certain " user's piece " by which MGW handled at every turn.
The load HASH function of strengthening at random is: (IMSI/10+IMSI/10000+IMSI mod10) mod 1000.(also can adopt other HASH function).
The page-response message that is up to MGW is carried IMSI information, with the value of IMSI by after strengthening load HASH function calculation at random, the HASH value of gained is inevitable in 0～999 scope, according to HASH value inquiring user piecemeal table, can learn which MGW the user who carries this IMSI will be handled by.
The beep-page message that step 61:MSC will carry specific I MSI according to described rule sends to corresponding MGW;
Step 62: the described MGW that receives beep-page message resolves the IMSI in the described message, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, write down the corresponding relation of IMSI and MSC, and beep-page message is issued to purpose BSC.
Step 63: receive the MGW of the page-response message of described paging, judge whether record the MSC information corresponding on the current MGW,, then described page-response message is sent to corresponding MSC if having with described IMSI; Otherwise, calculate the MGW that IMSI shines upon according to above-mentioned rule, page-response message is transmitted to the described MGW that calculates, receive and handle by the sync cap between the MGW;
For example, the paging IMSI of current transmission is an odd number, issuing page message and write down IMSI and the MGW1 of the corresponding relation of MSC then, and receive page-response message for MGW2, this MGW2 is according to same rule, find that the IMSI in this page-response message is an odd number, then this page-response message is transmitted to MGW1;
Step 64: the described MGW that calculates issues the MSC of issuing page message according to IMSI and the MSC corresponding relation of record on it with page-response message, guarantees to call out normal foundation.
Present embodiment is according to certain rule, all IMSI on each MSC are corresponded on each MGW, make the corresponding a plurality of IMSI of a MGW, thereby when follow-up MGW receives page-response message, can according to this rule page-response message be sent to corresponding MSC according to the IMSI that carries in the message, realize the normal foundation of calling out, avoided the generation of call loss.
Execution mode four
Present embodiment provides a kind of MSC Pool networking achieving paging system, comprise a plurality of MSC and MGW, described a plurality of MGW can link to each other with a BSC, preserving current among described and a plurality of MGW that a BSC links to each other is the MSC of purpose BSC paging and the corresponding relation of IMSI with described BSC, is used for transmitting page-response message according to described corresponding relation.
As shown in Figure 7, be a kind of MSC Pool networking achieving paging system architecture schematic diagram, MSC is before sending paging, the IMSI of current paging is broadcast to all MGW that link to each other with the purpose BSC of current paging with the corresponding relation of MSC, makes the corresponding relation of all preserving described IMSI and MSC on each MGW.
For realizing described function, described MSC (be provided with among the MSC1-MSCn):
The paging processing unit is used to send beep-page message, paging receiving response message and finish the processing relevant with paging;
Radio unit is used for before described paging processing unit sends beep-page message, and the IMSI and the corresponding relation of MSC of current paging is broadcast to all MGW that link to each other with purpose BSC.
While MGW (MGW1-MGWn) be provided with:
Memory cell is used for storing the IMSI and the corresponding relation of MSC that obtain from the message of described MSC broadcasting, and according to described corresponding relation forwarding page-response message.
The groundwork process of this MSC Pool networking achieving paging system is as described below:
MSC creates a private message that carries IMSI and MSC corresponding relation before distributing paging, and is broadcast to all MGW that link to each other with described paging purpose BSC by radio unit;
Mainly comprise in the described private message: the IMSI that carries in the sign of described MSC, the beep-page message that is about to issue.
Receive the corresponding relation of the MGW of described private message by unit records IMSI and MSC;
MSC is issued to any MGW (linking to each other with purpose BSC) by the paging processing unit with beep-page message, by described MGW beep-page message is issued to purpose BSC; By the MSC decision which MGW is message mail to, can decides by signalling route load sharing algorithm.
After any one MGW receives the page-response message that described purpose BSC sends,, page-response message is sent to the MSC of issuing page message, guarantee to call out normal foundation according to the IMSI of described unit records and the corresponding relation of MSC.
As shown in Figure 8, in the another kind of specific embodiment, for realizing described function, described MSC (be provided with among the MSC1-MSCn):
The unit is set, is used for whether representing the parameter of distributing paging the beep-page message setting that sends, have only a beep-page message to carry first parameter of expression distributing paging, other beep-page messages carry not second parameter of distributing paging of identical expression;
The paging delivery unit, the beep-page message that is used for carrying described parameter is issued to all MGW that link to each other with purpose BSC.
While MGW (MGW1-MGWn) be provided with:
Information identificating unit is used for according to the beep-page message that receives, and resolves and identifies IMSI, MSC sign and whether represent the parameter of distributing paging;
Judging unit is used for judging whether that according to the described parameter that identifies needs issue described beep-page message;
The paging delivery unit is used to receive the judged result of described judging unit, issuing page message when judgement needs issuing page message.
Also comprise:
Information memory cell is used to receive the information that described information identificating unit identifies, and stores the corresponding relation of described IMSI and described MSC.
The groundwork process of this MSC Pool networking achieving paging system is as described below:
MSC broadcasts the page message to all MGW that link to each other with purpose BSC by the paging delivery unit; Before the described beep-page message of broadcasting, in the beep-page message that sends, be provided with and whether represent the parameter of distributing paging by the unit is set, have only a beep-page message to carry first parameter of expression distributing paging, other beep-page messages carry not second parameter of distributing paging of identical expression;
Receive the MGW of this beep-page message, parse IMSI in the described beep-page message by information identificating unit, obtain corresponding MSC sign according to the signaling link (for example M3UA) of receiving beep-page message then, and obtain and whether represent the parameter of issuing page message, store the corresponding relation of described MSC and IMSI by information memory cell, and judge whether that according to this parameter the needs issuing page message is to BSC by judging unit, if need issue, then notify the paging delivery unit that described beep-page message is issued to BSC, otherwise only need write down the corresponding relation of this MSC and IMSI;
The follow-up MGW that receives the page-response message of described paging sends to the MSC of issuing page message to page-response message according to the corresponding relation of the MSC of described record and IMSI, guarantees to call out normal foundation.
As shown in Figure 9, among another embodiment, for realizing described function, described MGW (MGW1-MGWn) be provided with:
Recognition unit is used for identifying IMSI and MSC corresponding relation according to the beep-page message that receives;
Notification unit is used to obtain described IMSI that identifies and MSC corresponding relation, and is notified to other MGW that link to each other with the purpose BSC of current paging;
Also comprise:
Memory cell is used to store the IMSI and the MSC corresponding relation of described identification.
The groundwork process of this MSC Pool networking achieving paging system is as described below:
MSC is handed down to beep-page message a MGW who links to each other with purpose BSC;
Recognition unit among the described MGW parses the IMSI in the beep-page message, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, obtain IMSI and MSC corresponding relation, by the corresponding relation of cell stores IMSI and MSC, and be notified to other MGW that link to each other with purpose BSC by notification unit step;
In order to make other MGW that link to each other with purpose BSC that the record of corresponding relation also be arranged, described notification unit can be by the transmission of TCP/UDP, give described other MGW with the forwards of record corresponding relation, receive and handle by the sync cap between the MGW, make other MGW that link to each other with purpose BSC also write down the corresponding relation of IMSI and MSC.
The operation of described parsing, storage and notice IMSI and MSC corresponding relation can be carried out synchronously.
The described MGW that receives beep-page message is issued to purpose BSC with described beep-page message;
The follow-up MGW that receives the page-response message of described paging sends to the MSC of issuing page message to page-response message according to the corresponding relation of the MSC of described record and IMSI, guarantees to call out normal foundation.
Present embodiment by with all MGW that the purpose BSC of current paging links to each other in preserve the corresponding relation of MSC and IMSI, realized the normal foundation of calling, avoided the generation of call loss.
Execution mode five
Present embodiment provides a kind of MSC Pool networking achieving paging system, comprise a plurality of MSC (MSC1-MSCn) and MGW (MGW1-MGWn), described a plurality of MGW can link to each other with a BSC, described MGW is used to transmit the paging related news, when receiving page-response message and not writing down with corresponding IMSI of described page-response message and MSC corresponding relation, described page-response message is broadcast to all MSC among the MSC Pool, and can in described page-response message, special identifier be set, represent that this page-response message broadcasted by MGW.As shown in figure 10, for realizing described function, be provided with at least among the described MGW:
The page-response message receiving element is used for the paging receiving response message;
The page-response message radio unit is used for described page-response message is broadcast to all MSC of MSC Pool.
Can also be provided with:
Sign is provided with the unit, and whether be used in the page-response message that sends this page-response message of expression being set is the sign of media gateway broadcasting.
Described MSC, be used for the paging receiving response message, parse the IMSI in the page-response message, judge whether paging according to described IMSI into the current transmission of this MSC, when judgement is the paging of the current transmission of this MSC, receive described page-response message, otherwise be to abandon described page-response message under the MGW broadcast situation in described page-response message.For realizing described function, be provided with among the described MSC:
The information analysis unit is used for parsing IMSI information from the page-response message that receives, and judges whether paging into the current transmission of this MSC according to described IMSI, thereby determines whether to accept and handle described page-response message; Described information analysis unit further comprises: identification (RNC-ID) analytic unit (not shown) is used for parsing the sign of described page-response message; The judging unit (not shown), be used for judging according to described sign whether this page-response message is the message of MGW broadcasting, thereby determine whether to abandon described page-response message, when judgement is the message of MGW broadcasting, and during the paging of non-the current transmission of MSC, then abandon described page-response message.
The paging processing unit is used to receive the judged result of described information analysis unit, judge receive described page-response message after, receive described page-response message and carry out the relevant processing of follow-up paging.
The groundwork process of this MSC Pool networking achieving paging system is as described below:
MSC issues beep-page message by a MGW who links to each other with purpose BSC; By the MSC decision which MGW is message mail to, can decides by signalling route load sharing algorithm.
Described MGW parses the IMSI in the beep-page message, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, the corresponding relation of record IMSI and MSC.
Described MGW gives purpose BSC with paging delivery;
After the page-response message receiving element of any MGW that links to each other with described purpose BSC receives page-response message, if do not have to be provided with IMSI and the MSC corresponding relation corresponding among the described MGW with described page-response message, then the unit is set described page-response message is provided with a sign, be broadcast to all MSC among the MSC Pool by the page-response message radio unit afterwards by sign;
The sign that described sign is provided with the unit setting is used for representing described page-response message whether by MGW broadcasting, and this sign can be provided with by increase a non-agreement cell in the Optional Field of page-response message.
Receive the MSC of described page-response message in the MSC Pool, go out IMSI and sign in the described page-response message by the information analysis unit resolves, judge whether the paging that sending for this MSC according to described IMSI, if the paging that this MSC is sending, then accept described page-response message, finish follow-up processing flow, the realization paging is normally set up; The paging that is sending if not this MSC, then can know whether the page-response message of broadcasting into MGW according to the described sign that parses by the judging unit in the information analysis unit, if the page-response message of MGW broadcasting then can abandon described page-response message; If not the page-response message of MGW broadcasting, then according to actual conditions, according to existing this page-response message of disposal methods, the present invention does not herein do qualification.
When present embodiment can't be determined the MSC of current page-response message at MGW, by page-response message being sent to all MSC among the MSC Pool, described MSC judges whether paging into the current transmission of this MSC according to the IMSI of described message, thereby realizes the normal foundation of paging, avoids call loss.
Execution mode six
Present embodiment provides a kind of MSC Pool netting communication system, and as shown in figure 11, ((MGW1-MGWn), described a plurality of MGW can link to each other with a BSC for MSC1-MSCn) and MGW to comprise a plurality of MSC.
Described MSC is used for selecting corresponding media gateway MGW issuing page message according to the IMSI International Mobile Subscriber Identity IMSI of current transmission paging according to pre-defined rule, and the corresponding relation of described IMSI and MGW is for to preestablish according to rule; For finishing described function, be used for it and be provided with at least:
The paging processing unit is used to send beep-page message, paging receiving response message and finish the processing relevant with paging;
MGW selects determining unit, is used for according to pre-defined rule all IMSI of this MSC are corresponding with each MGW.
Described MGW is used to transmit the paging related news, the corresponding relation of storage IMSI and MSC, and when the IMSI of the page-response message correspondence that does not have current reception and MSC corresponding relation record, determine to transmit the MGW of described page-response message according to the rule identical with described MSC.For finishing described function, it is provided with at least:
Resolve memory cell, be used for parsing IMSI and MSC corresponding relation and storage from the beep-page message that receives;
The MGW selected cell, be used for after receiving page-response message, and when not having corresponding IMSI and MSC corresponding relation record in the described parsing memory cell, select to transmit the MGW of described page-response message according to the rule of the selection MGW identical, and the page-response message of described reception is transmitted to the MGW of described selection with MSC.
The groundwork process of this MSC Pool networking achieving paging system is as described below:
According to certain rule that all IMSI on each MSC are corresponding with each MGW, the MGW selected cell of MSC selects to transmit the MGW of beep-page message according to described rule, and sends to selected MGW by the beep-page message that the paging processing unit will carry specific I MSI;
The described MGW that receives beep-page message resolves IMSI in the described message by resolving memory cell, then according to receiving that the signaling link (for example M3UA) of beep-page message obtains the sign of corresponding MSC, write down the corresponding relation of IMSI and MSC, and beep-page message is issued to purpose BSC.
Receive the MGW of the page-response message of described paging, judge whether record the MSC information corresponding on the current MGW,, then described page-response message is sent to corresponding MSC if having with described IMSI; Otherwise, calculate the MGW of IMSI mapping by the MGW selected cell according to the rule of the above-mentioned selection MGW identical with MSC, page-response message is transmitted to the described MGW that calculates, receive and handle by the sync cap between the MGW;
The described MGW that calculates issues the MSC of issuing page message according to IMSI and the MSC corresponding relation of record on it with page-response message, guarantees to call out normal foundation.
Present embodiment is according to certain rule, all IMSI on each MSC are corresponded on each MGW, make the corresponding a plurality of IMSI of a MGW, thereby when follow-up MGW receives page-response message, can according to this rule page-response message be sent to corresponding MSC according to the IMSI that carries in the message, realize the normal foundation of calling out, avoided the generation of call loss.
In sum, the embodiment of the invention is MSC Pool networking, when BSC connects a plurality of MGW, processing procedure with the IMSI calling user, realized no matter page-response message by which MGW is transmitted, can send on the MSC with identical IMSI issuing page message, call out thus and can continue, avoid occurring call loss.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (25)

1, achieving paging method in a kind of MSC Pool networking is characterized in that, comprising:
All media gateway that link to each other with the purpose base station controller of current paging write down the mobile switching centre of current paging and the corresponding relation of IMSI International Mobile Subscriber Identity IMSI;
Described media gateway is transmitted page-response message according to the corresponding relation of described record.
2, the method for claim 1 is characterized in that, the method that described all media gateway that link to each other with the purpose base station controller of current paging write down the corresponding relation of the mobile switching centre of current paging and IMSI comprises:
All media gateway that described and current paging purpose base station controller links to each other receive the described mobile switching centre of mobile switching centre's broadcasting and the corresponding relation of IMSI;
Described media gateway writes down the corresponding relation of described mobile switching centre and IMSI.
3, the method for claim 1 is characterized in that, the method that described all media gateway that link to each other with the purpose base station controller of current paging write down the corresponding relation of the mobile switching centre of current paging and IMSI comprises:
All media gateway that link to each other with the purpose base station controller receive the beep-page message that mobile switching centre issues;
Described gateway resolves goes out corresponding relation and the record of described mobile switching centre and IMSI.
4, method as claimed in claim 3 is characterized in that, described method also comprises:
In the beep-page message that described mobile switching centre issues, carry and whether represent the parameter of issuing page message, have only first parameter of carrying the expression issuing page message in the beep-page message, carry not second parameter of issuing page message of identical expression in other beep-page messages;
The gateway resolves that receives beep-page message goes out described parameter, judges whether described parameter is described first parameter, if then write down corresponding relation and the issuing page message of described mobile switching centre and IMSI; Otherwise issuing page message not writes down the corresponding relation of described mobile switching centre and IMSI.
5, the method for claim 1 is characterized in that, the method that described all media gateway that link to each other with the purpose base station controller of current paging write down the corresponding relation of the mobile switching centre of current paging and IMSI comprises:
A media gateway that links to each other with the purpose base station controller receives the beep-page message that mobile switching centre issues;
The described beep-page message of described gateway resolves, corresponding relation and the record of acquisition mobile switching centre and IMSI;
Described media gateway is notified to described corresponding relation other media gateway that link to each other with the purpose base station controller;
Described other media gateway write down the corresponding relation of described mobile switching centre and IMSI.
6, method as claimed in claim 5 is characterized in that, is received and handled the corresponding relation of described mobile switching centre and IMSI by the sync cap between the MGW.
As claim 2,3,5 described methods, it is characterized in that 7, the method that described media gateway is transmitted page-response message according to the corresponding relation of described record comprises:
After media gateway receives page-response message, search the mobile switching centre that write down and the corresponding relation of IMSI according to the IMSI that carries in the described page-response message, determine the mobile switching centre of described IMSI correspondence, described page-response message is sent to corresponding mobile switching centre.
8, achieving paging method in a kind of MSC Pool networking is characterized in that, comprising:
All mobile switching centres among the MSC Pool receive the page-response message of media gateway broadcasting;
Mobile switching centre among the described MSC Pool judges whether paging into the current transmission of this mobile switching centre according to the IMSI International Mobile Subscriber Identity IMSI in the page-response message, when judgement is the paging of the current transmission of this mobile switching centre, then handle described page-response message.
9, method as claimed in claim 8 is characterized in that, whether dose this page-response message of expression in the described page-response message is the sign of media gateway broadcasting.
10, achieving paging method in a kind of MSC Pool networking is characterized in that, comprising:
Mobile switching centre selects the first corresponding media gateway issuing page message to base station controller according to the IMSI International Mobile Subscriber Identity IMSI of current transmission paging, described first media gateway writes down the corresponding relation of described mobile switching centre and IMSI, and the corresponding relation of IMSI and media gateway is for to preestablish according to rule;
Second media gateway that receives page-response message determines to transmit first media gateway of described page-response message according to described pre-defined rule;
Described second media gateway sends to first media gateway with described page-response message;
Described first media gateway sends to mobile switching centre with described page-response message.
11, method as claimed in claim 10 is characterized in that, described pre-defined rule comprises: will form in the numeral of IMSI some bit digital according to the rules algorithm calculate, various computing result is corresponding to different media gateway.
12, achieving paging system in a kind of MSC Pool networking is characterized in that, comprising:
Media gateway, with all media gateway that same base station controller links to each other in, record is the mobile switching centre of current paging of purpose base station controller and the corresponding relation of IMSI International Mobile Subscriber Identity IMSI with described base station controller, transmits page-response message according to described corresponding relation;
Mobile switching centre links to each other with described media gateway, is used for initiating paging, receive described page-response message and finishing the processing relevant with paging by described media gateway.
13, a kind of mobile switching centre comprises the paging processing unit, is used to send beep-page message, and paging receiving response message and finish the processing relevant with paging is characterized in that, also comprises:
Radio unit is used for before described paging processing unit sends beep-page message, and the IMSI and the corresponding relation of mobile switching centre of current paging is broadcast to all media gateway that link to each other with the purpose base station controller of current paging.
14, a kind of mobile switching centre is characterized in that, comprising:
The unit is set, is used for whether representing the parameter of distributing paging the beep-page message setting that sends, have only a beep-page message to carry first parameter of expression distributing paging, other beep-page messages carry not second parameter of distributing paging of identical expression;
The paging delivery unit, the beep-page message that is used for carrying described parameter is issued to all media gateway that link to each other with the purpose base station controller.
15, a kind of media gateway is characterized in that, comprising:
Information identificating unit is used for according to the beep-page message that receives, and resolves and identifies IMSI International Mobile Subscriber Identity IMSI, mobile switching centre's sign and whether represent the parameter of distributing paging;
Judging unit is used for judging whether that according to described parameter needs issue described beep-page message;
The paging delivery unit is used to receive the judged result of described judging unit, issuing page message when judgement needs issuing page message.
16, media gateway as claimed in claim 15 is characterized in that, also comprises:
Information memory cell is used to receive the information that described information identificating unit identifies, and stores the corresponding relation of described IMSI and described mobile switching centre.
17, a kind of media gateway is characterized in that, comprising:
Recognition unit is used for identifying IMSI and mobile switching centre's corresponding relation according to the beep-page message that receives;
Notification unit is used to obtain the described IMSI that identifies and mobile switching centre's corresponding relation, and is notified to other media gateway that link to each other with the purpose base station controller of current paging.
18, media gateway as claimed in claim 17 is characterized in that, also comprises:
Memory cell is used to store IMSI and mobile switching centre's corresponding relation of described identification.
19, achieving paging system in a kind of MSC Pool networking is characterized in that, comprising:
Media gateway is used for described page-response message is broadcast to all mobile switching centres of MSC Pool;
Mobile switching centre, be used to receive the page-response message of described media gateway broadcasting, parse the IMSI in the page-response message, judge whether paging according to described IMSI into the current transmission of this mobile switching centre, when judgement is the paging of the current transmission of this mobile switching centre, then handle described page-response message.
20, a kind of media gateway is characterized in that, comprising:
The page-response message receiving element is used for the paging receiving response message;
The page-response message radio unit is used for described page-response message is broadcast to all mobile switching centres of MSC Pool.
21, media gateway as claimed in claim 20 is characterized in that, also comprises:
Special identifier is provided with the unit, and whether be used in the page-response message that sends this page-response message of expression being set is the sign of media gateway broadcasting.
22, a kind of mobile switching centre is characterized in that, comprising:
The information analysis unit, be used for parsing IMSI information from the page-response message that receives, judge whether paging into the current transmission of this mobile switching centre when judgement is the paging of the current transmission of this mobile switching centre, to receive described page-response message according to described IMSI;
The paging processing unit is used to receive the judged result of described information analysis unit, judge receive described page-response message after, accept described page-response message and carry out the relevant processing of follow-up paging.
23, mobile switching centre as claimed in claim 22 is characterized in that, described information analysis unit also comprises:
The identification (RNC-ID) analytic unit, whether this page-response message of the expression of carrying that is used for parsing described page-response message is the sign of media gateway broadcasting;
Judging unit, be used for judging according to the described sign that parses whether this page-response message is the message of media gateway broadcasting, when judgement is the message of media gateway broadcasting, and during the paging of the current transmission of Fei Ben mobile switching centre, then abandon described page-response message.
24, achieving paging system in a kind of MSC Pool networking is characterized in that, comprising:
Mobile switching centre is used for selecting corresponding media gateway issuing page message according to the IMSI International Mobile Subscriber Identity IMSI of current transmission paging, and the corresponding relation of IMSI and media gateway is for to preestablish according to rule;
Media gateway, be used to transmit the paging related news, the corresponding relation of storage IMSI and mobile switching centre, and receiving page-response message, and when not having the IMSI of page-response message correspondence of current reception and mobile switching centre corresponding relation record, according to the definite media gateway of transmitting described page-response message of the rule identical, described page-response message is transmitted to described definite media gateway with described mobile switching centre.
25, a kind of media gateway is characterized in that, comprising:
Resolve memory cell, be used for parsing IMSI and mobile switching centre's corresponding relation and storage from the beep-page message that receives;
The media gateway selected cell, be used for after receiving page-response message, and when not having corresponding IMSI and mobile switching centre's corresponding relation record in the described parsing memory cell, select to transmit the media gateway of described page-response message according to the rule of the selection media gateway identical, and the page-response message of described reception is transmitted to the media gateway of described selection with mobile switching centre.
CN2007101521646A 2007-09-18 2007-09-18 Call implementing method, device and system in MSC Pool networking Expired - Fee Related CN101394587B (en)

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WO2010108457A1 (en) * 2009-03-27 2010-09-30 华为技术有限公司 Method, system and device for processing connectionless messages
WO2011069279A1 (en) * 2009-12-11 2011-06-16 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications
WO2011069278A1 (en) * 2009-12-11 2011-06-16 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications towards a mobile station
WO2012031393A1 (en) * 2010-09-08 2012-03-15 中兴通讯股份有限公司 Method and system for paging based on imsi

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EP1364541B1 (en) * 2001-03-02 2006-09-13 Telefonaktiebolaget LM Ericsson (publ) Method and devices for routing a message to a network server in a server pool
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WO2010108457A1 (en) * 2009-03-27 2010-09-30 华为技术有限公司 Method, system and device for processing connectionless messages
CN101848488B (en) * 2009-03-27 2012-12-12 华为技术有限公司 Method, system and equipment for processing connectionless information
WO2011069279A1 (en) * 2009-12-11 2011-06-16 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications
WO2011069278A1 (en) * 2009-12-11 2011-06-16 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications towards a mobile station
CN102714882A (en) * 2009-12-11 2012-10-03 爱立信(中国)通信有限公司 Network entity for mobile communications towards a mobile station
US8868114B2 (en) 2009-12-11 2014-10-21 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications
US9014708B2 (en) 2009-12-11 2015-04-21 Telefonaktiebolaget L M Ericsson (Publ) Network entity for mobile communications towards a mobile station
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WO2012031393A1 (en) * 2010-09-08 2012-03-15 中兴通讯股份有限公司 Method and system for paging based on imsi

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