CN101018417A - Core network selection method and device in the IMSI paging process - Google Patents
Core network selection method and device in the IMSI paging process Download PDFInfo
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- CN101018417A CN101018417A CNA2007100801584A CN200710080158A CN101018417A CN 101018417 A CN101018417 A CN 101018417A CN A2007100801584 A CNA2007100801584 A CN A2007100801584A CN 200710080158 A CN200710080158 A CN 200710080158A CN 101018417 A CN101018417 A CN 101018417A
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Abstract
The disclosed selecting service core network method for user terminal in IMSI calling process comprises: receiving IMSI calling message from the core network to store the mapping relation between IMSI and the network mark and send calling message to user terminal; receiving response message from user, if obtaining terminal IMSI, acquiring the corresponding core network mark according to stored relation, and taking this core network as terminal service core network; or else, selecting the service core network for terminal according to carried message in response message. This invention reduces failure probability of IMSI calling when user as the called.
Description
Technical field
The present invention relates to the communications field, relate in particular to core network selection method and device thereof in a kind of IMSI paging.
Background technology
3GPP agreement 3GPP TS 23.236 has described IU FLEX characteristic.IU FLEX characteristic has broken through a MSC (the Mobile Switch Center that a traditional Access Network can only connect a same domain simultaneously, mobile switching centre), SGSN core network entities such as (Service GPRS Support Node, Serving GPRS Support Nodes); Make a RAN (Radio Access Network, wireless access network) can connect the core net in a plurality of same domain (CS territory, PS territory) simultaneously.Introduced the notion of pool-area (Chi Qu) in the agreement, a Chi Qu is exactly the set of one or more RNC (Radio Network control, radio network controller) node service area.Chi Qu is made of as MSC or SGSN coequally a plurality of CN (Core Network, core net) node, and these CN nodes are shared the traffic in the district of pond; During CN node failure in the Dang Chi district, other CN node can provide service, thereby has increased professional availability.
3GPP agreement 3GPP TS 23.25 1 has introduced MOCN (Multi-Operator Core Network, MOCN) characteristic.All core net belong to identical operator in IU FLEX networking, and the core net of a plurality of operators is arranged in the MOCN networking, and the core net of an operator can be a core net Chi Qu.
Following regulation is arranged: all move under the normal situation in system in agreement 3GPP TS 23.236, CN node in the district of pond is shared the traffic in this pond district jointly, the user who is respectively the Location Registration success distributes a TMSI (Temporary Mobile Station Identity, temporary mobile subscriber identity), NRI (Network Resource Identifier, the network resource identifier) value that comprises this CN node among the TMSI.The NRI value is unique identification CN node in the district of pond.
The user responds IMSI (the International Mobile Subscriber Identity of CN, international mobile subscriber identification code) during paging, in response message, carry IDNNS (Intra Domain NAS NodeSelector, Non-Access Stratum is selected parameter in the territory) cell, include the NRI value in the IDNNS cell, and comprise indication information, indicating this NRI value still is that IMSI derives from TMSI.The IMSI paging that the user initiates by InitialDirect Transfer (initial direct-sending message) response CN, after RNC receives user's IMSI page-response message, IDNNS from this message parses the NRI value, then initial direct-sending message is sent to the corresponding CN node of this NRI value.
In agreement 3GPP TS 23.236, select being described below of CN node about RNC in the IMSI paging:
1, the CN node sends beep-page message (Paging message) to RNC, carries sign targeted customer's the IMSI and the Globle-CN-ID of this CN node of sign in the beep-page message.
2, after RNC receives the beep-page message that CN sends, preserve IMSI and the corresponding relation of Globle-CN-ID in this message temporarily, and by transmission beep-page message (Paging message) paging target MS.
3, MS responds this beep-page message, sends initial direct-sending message (Initial Direct Transfermessage) to RNC.If MS preserves effective TMSI, then the IDNNS in the response message is derived by TMSI; If do not preserve effective TMSI among the MS, then the IDNNS in the response message is derived by IMSI.
4, after RNC receives the page response of MS, select the CN node of service for this MS.
The IDNNS that RNC carries in page-response message according to MS, the CN algorithm of nodes is selected in decision, comprises following two kinds of situations:
Situation one: RNC judges that by the indication information in the IDNNS cell in the response message this IDNNS derives from IMSI, and then RNC selects the algorithm of core net to be:
If RNC can learn the Global-CN-ID of the core net of this MS of paging, for example, RNC can get access to the IMSI of the MS that returns page response, then can obtain the Global-CN-ID corresponding with this IMSI, this moment, RNC preferentially selected the core net of this Global-CN-ID correspondence, as the service core net of this MS; If RNC can not learn the Global-CN-ID of the core net of this MS of paging, for example, RNC can not get access to the IMSI of the MS that returns page response, therefore also just can't obtain the Global-CN-ID of this IMSI correspondence, this moment, RNC used the V value of the IDNNS that is derived by IMSI to select corresponding core net, as the service core net of this MS.Core net in the V value unique identification pond district of IDNNS.
Situation two: RNC judges that by the indication information in the IDNNS cell in the response message this IDNNS derives from effective TMSI, and then RNC selects the algorithm of core net to be:
Use is selected corresponding core net by the NRI value among the IDNNS of TMSI derivation, as the service core net of this MS.
The scheme of RNC selection CN node as can be seen from above-mentioned IMSI paging, in the IMSI paging, RNC preferentially selects the rule of the core net of Global-CN-ID correspondence only to be applicable to the page response that the IDNNS of less situation derives from IMSI by page response; And the IDNNS of most cases derives from TMSI, and this moment, RNC for MS selects the service core net, following problem may occur according to the NRI value among the IDNNS like this:
When the pairing core net of the NRI among the user TMSI (core net of user registration success) is not same core net with core net from the IMSI paging to this user that initiate, this situation might occur in the core net upgrading or fault of user registration success, initiate the IMSI paging by other core net in the district of pond to this user, core net when the core net that this moment, RNC selected according to the NRI among user's the TMSI still succeeds in registration, rather than the core net of initiation IMSI paging, the unreachable call failure that causes of core net when at this moment, meeting is owing to user registration success.
Summary of the invention
The embodiment of the invention provides and has been the method for user terminal selecting service core net in a kind of IMSI paging, and to reduce the probability of call failure in the IMSI paging, this method may further comprise the steps:
Receive the international mobile subscriber identification code IMSI beep-page message that core net sends, the corresponding relation of the IMSI that preservation is wherein carried and this core net sign, and to user terminal transmission beep-page message;
After receiving the page-response message that described user terminal returns, if can get access to the IMSI of this user terminal, then obtain the core net sign of this IMSI correspondence, and the core net that this core net sign is corresponding is as the service core net of described user terminal according to the described corresponding relation of preserving; Otherwise the information of carrying according to described page-response message is described user terminal selecting service core net.
An alternative embodiment of the invention provides a kind of core net choice device, and this device comprises beep-page message receiver module, memory module, page response receiver module, the first selection module and the second selection module;
Described beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in described memory module, and described beep-page message is sent to user terminal;
Described memory module is used to store described IMSI and core net sign;
Described page response receiver module is used to receive the page-response message that described user terminal returns, and starts described first and select module to be this user terminal selecting service core net;
Described first selects module, is used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtains the core net sign corresponding with described IMSI from described memory module, and will identify the core net of corresponding core net as described user terminal; Otherwise, start described second and select module;
Described second selects module, is used for the entrained information of page-response message that receives according to described page response receiver module, is described user terminal selecting service core net.
An alternative embodiment of the invention also provides a kind of core net choice device, and this device comprises beep-page message receiver module, memory module, page response receiver module, parsing module and the first selection module;
Described beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in described memory module, and described beep-page message is sent to user terminal;
Described memory module is used to preserve described IMSI and core net sign;
Described page response receiver module is used to receive the page-response message that described user terminal returns;
Described parsing module is used for parsing IDNNS from the page-response message that described page response receiver module receives, if this IDNNS derives from TMSI, then starts described first and selects module;
Described first selects module, is used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtains the core net sign corresponding with described IMSI from described memory module, and will identify the core net of corresponding core net as described user terminal; Otherwise the described IDNNS that parses according to described parsing module is described user terminal selecting service core net.
The above embodiment of the present invention, in the IMSI paging of initiating in core net, preferentially according to the core net sign of preserving, be user terminal selecting service core net, when the core net that makes core net and user terminal when initiation IMSI paging succeed in registration is inconsistent, this user terminal can be routed to the core net of initiating page response, reduces the probability of paging failure.
Description of drawings
Fig. 1 is the IMSI paging schematic flow sheet of the embodiment of the invention one;
Fig. 2 is the IMSI paging schematic flow sheet of the embodiment of the invention two;
Fig. 3 is one of the structural representation of the core net choice device of the embodiment of the invention;
Fig. 4 be the embodiment of the invention the core net choice device structural representation two.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Embodiment 1
Present embodiment has been described the CN node to the process that MS initiates the IMSI paging, is applied to the communication network based on the FLEX technology.In the present embodiment, the CN node of supposing to initiate the IMSI paging is not the CN node of MS initial registration success.This situation is usually because due to network or the unit exception, for example, when the CN node of MS initial registration success need be upgraded or equipment fault is taken place, IU FLEX mechanism made other the available CN nodes in the CN node pool at this CN node place initiate the IMSI paging to MS.
Referring to Fig. 1, be the IMSI paging schematic flow sheet of the embodiment of the invention, concrete steps comprise:
Step 110, CN node send beep-page message (Paging message) to RNC, carry sign targeted customer's the IMSI and the Globle-CN-ID of this CN node of sign in the beep-page message.
Step 120, RNC preserve IMSI and the corresponding relation of Globle-CN-ID in this message after receiving the beep-page message that CN sends, and RNC is by transmission beep-page message (Paging message) paging target MS.
If MS has effective TMSI, then the IDNNS in the response message is derived by TMSI; If there is not effective TMSI among the MS, then the IDNNS in the response message is derived by IMSI.
Step 140, RNC receive the page response of MS, and execution in step 150, are chosen as the core net of its service for target MS.
Step 150, RNC resolve page-response message, and according to the indication information among the IDNNS, judge that this IDNNS derives from TMSI, still derives from IMS1.If derive from TMSI, then execution in step 151; If derive from IMSI, then execution in step 155.
If step 151 RNC judges IDNNS derive, then judge whether to obtain the corresponding Globle-CN-ID of IMSI with this target MS by TMSI, if can, then execution in step 152; Otherwise execution in step 153.
In step 120, RNC has preserved the Globle-CN-ID corresponding with the IMSI of target MS, if RNC can obtain to initiate the user's of IMSI page response IMSI, then RNC can obtain corresponding Globle-CN-ID by this IMSI; If RNC can not obtain to initiate the IMSI of the MS of IMSI page response, then RNC can't learn it is the IMSI paging which CN node is initiated to this target MS.
If step 152 RNC can obtain the Globle-CN-ID corresponding with the IMSI of target MS, then RNC selects the service CN node of the CN node of this Globle-CN-ID correspondence as this target MS.The CN node of this Globle-CN-ID correspondence is just initiated the CN node of IMSI paging to this MS.
If step 153 RNC can not obtain the Globle-CN-ID corresponding with the IMSI of target MS, then RNC resolves IDNNS, and according to the NRI that parses, selects the service CN node of the CN node of this NRI correspondence as this target MS.The CN node of this NRI correspondence is the CN node of MS initial registration success.
If step 155 RNC judges IDNNS derive, then judge whether to obtain the corresponding Globle-CN-ID of IMSI with this target MS by IMSI, if can, then execution in step 156; Otherwise execution in step 157.
If step 156 RNC can obtain the Globle-CN-ID corresponding with the IMSI of target MS, then RNC selects the service CN node of the CN node of this Globle-CN-ID correspondence as this target MS.
If step 157 RNC can not obtain the Globle-CN-ID corresponding with the IMSI of target MS, then RNC resolves IDNNS, and according to the V value that parses, selects the service CN node of the corresponding CN node of this V value as target MS.
After step 160, RNC select the service CN node of target MS, page-response message is sent to the service CN node that this is selected, and continue to carry out follow-up IMSI paging flow process.Follow-up IMSI paging flow process is a prior art, does not describe in detail at this.
Embodiment 2
Present embodiment has been described the CN node to the process that MS initiates the IMSI paging, is applied to the communication network based on the FLEX technology.In the present embodiment, the CN node of supposing to initiate the IMSI paging is not the CN node of MS initial registration success.This situation is usually because due to network or the unit exception, for example, when the CN node of MS initial registration success need be upgraded or equipment fault is taken place, IU FLEX mechanism made other the available CN nodes in the CN node pool at this CN node place initiate the IMSI paging to MS.
Referring to Fig. 2, be the IMSI paging schematic flow sheet of the embodiment of the invention, concrete steps comprise:
Step 210, CN node send beep-page message (Paging message) to RNC, carry sign targeted customer's the IMSI and the Globle-CN-ID of this CN node of sign in the beep-page message.
Step 220, RNC preserve IMSI and the corresponding relation of Globle-CN-ID in this message after receiving the beep-page message that CN sends, and RNC is by transmission beep-page message (Paging message) paging target MS.
Step 230, MS respond this beep-page message, send initial direct-sending message (Initial DirectTransfer message) to RNC, carry IDNNS in the response message.
Step 240, RNC receive the page response of MS, and execution in step 250, are chosen as the core net of its service for target MS.
Step 250, RNC judge whether to obtain the corresponding Globle-CN-ID of IMSI with this target MS, if can, then execution in step 251; Otherwise execution in step 252.
In step 220, RNC has preserved the Globle-CN-ID corresponding with the IMSI of target MS, if RNC can obtain to initiate the user's of IMSI page response IMSI, then RNC can obtain corresponding Globle-CN-ID by this IMSI; If RNC can not obtain to initiate the IMSI of the MS of IMSI page response, then RNC can't learn it is the IMSI paging which CN node is initiated to this target MS.
If step 251 RNC can obtain the corresponding Globle-CN-ID of IMSI with this target MS, then select the service CN node of the CN node of this Globle-CN-ID correspondence as this target MS.
If step 252 RNC can not obtain the corresponding Globle-CN-ID of IMSI with this target MS, then resolve the IDNNS in the page-response message, and judge this IDNNS be derive from TMSI or derive from IMSI, if derive from TMISI, then execution in step 253; If derive from IMSI, then execution in step 254.
If step 253 RNC judges IDNNS derive, then from IDNNS, parse NRI, and select the service CN node of the CN node of this NRI correspondence as this target MS from TMSI.
If step 254 RNC judges IDNNS derive, then from IDNNS, parse the V value, and select the service CN node of the corresponding CN node of this V value as this target MS from IMSI.
After step 260, RNC select the service CN node of target MS, page-response message is sent to the service CN node that this is selected, and continue to carry out follow-up IMSI paging flow process.Follow-up IMSI paging flow process is a prior art, does not describe in detail at this.
The foregoing description 1 and embodiment 2 both can be applicable to the networking structure based on the FLEX technology of same operator, also were applicable to the networking structure based on a plurality of operators of MOCN technology.
The foregoing description 2 is compared with EXAMPLE l, RNC is that MS selects the service core net according to the Globle-CN-ID that preserves preferentially among the embodiment 2, and embodiment 1 at first resolves the IDNNS in the page-response message, whether be to derive from TMSI to carry out the selection of core net according to this IDNNS again, therefore embodiment 2 has simplified operating procedure by contrast.
The embodiment of the invention also provides a kind of core net choice device.
Referring to Fig. 3, the structural representation of the core net choice device that provides for the embodiment of the invention.This device is integrated in radio network controller, comprising: beep-page message receiver module, memory module, page response receiver module, first select module and second to select module.
The beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in memory module; The beep-page message receiver module also is forwarded to this beep-page message the user terminal at targeted customer place;
IMSI and core net sign that memory module storage beep-page message receiver module receives;
The page response receiver module is used to receive the page-response message that user terminal returns, and starts first and select module to be this user terminal selecting service core net;
After the first selection module is activated, obtain the IMSI of described user terminal,, then obtain the core net sign corresponding with this IMSI from memory module if can get access to, and will identify the core net of corresponding core net, and carry out follow-up paging flow process as user terminal; Otherwise, start second and select module;
Second selects module to comprise analyzing sub-module and chooser module.Analyzing sub-module is used for resolving the IDNNS of page-response message, and judge IDNNS be derive from TMSI or derive from IMSI; The chooser module, the IDNNS that parses according to analyzing sub-module is a user terminal selecting service core net, be specially: if IDNNS derives from TMSI, then from IDNNS, parse network resource identifier NRI, and with the core net of this NRI correspondence service core net as described user terminal; If IDNNS derives from IMSI, then from IDNNS, parse the V value, and the core net that this V value is corresponding is as the service core net of described user terminal.
Referring to Fig. 4, the structural representation of the another kind of core net choice device that provides for the embodiment of the invention.This device is integrated in radio network controller, comprises beep-page message receiver module, memory module, page response receiver module, parsing module, the first selection module and the second selection module.
The beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in memory module; The beep-page message receiver module also is forwarded to this beep-page message the user terminal at targeted customer place;
Memory module is used to preserve IMSI and the core net sign that the beep-page message receiver module gets access to;
The page response receiver module is used to receive the page-response message that user terminal returns;
Parsing module is used for parsing IDNNS from the page-response message that the page response receiver module receives, if this IDNNS derives from TMSI, then starts first and selects module; If this IDNNS derives from IMSI, then start second and select module;
First selects module to comprise first processing sub and second processing sub.After the first selection module is activated, first processing sub is wherein obtained the IMSI of the user terminal that sends page-response message, if can get access to, then obtain the core net sign corresponding, and will identify the core net of corresponding core net as user terminal with this IMSI from memory module; Otherwise, start second processing sub; Second processing sub is used for parsing the NRI value from IDNNS, and the core net that this NRI value is corresponding is as the service core net of user terminal.
After the second selection module is activated, be used to obtain the IMSI of user terminal,, then obtain the core net sign corresponding, and will identify the core net of corresponding core net as user terminal with described IMSI from memory module if can get access to IMSI; Otherwise the V value among the IDNNS that parses according to parsing module is user terminal selecting service core net.
In sum, in the embodiment of the invention, in the IMSI paging of initiating in core net, RNC is preferential to select the core net corresponding with called user terminal to identify, be that this called user terminal selects service core net, make because under the abnormal conditions, when the core net that succeeds in registration when the core net of initiating the IMSI paging and this terminal called is inconsistent, this terminal called can be routed to the core net of initiating the IMSI paging, reduces the probability of paging failure.For example, under the situation of upgrading of core net that terminal called succeeds in registration or fault, initiate paging by other available core net in the district of pond to this terminal called, at this moment, select the service core net of terminal called according to the sign of the core net of initiating the IMSI paging, the core net that can avoid RNC to select this terminal called to succeed in registration according to the TMSI of terminal called causes the probability of paging failure as the service core net.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1, be the method for user terminal selecting service core net in a kind of IMSI paging, it is characterized in that, may further comprise the steps:
Receive the international mobile subscriber identification code IMSI beep-page message that core net sends, the corresponding relation of the IMSI that preservation is wherein carried and this core net sign, and to user terminal transmission beep-page message;
After receiving the page-response message that described user terminal returns, if can get access to the IMSI of this user terminal, then obtain the core net sign of this IMSI correspondence, and the core net that this core net sign is corresponding is as the service core net of described user terminal according to the described corresponding relation of preserving; Otherwise the information of carrying according to described page-response message is described user terminal selecting service core net.
2, the method for claim 1 is characterized in that, the information that described page-response message is carried is that Non-Access Stratum is selected parameter I DNNS in the territory.
3, method as claimed in claim 2 is characterized in that, described information of carrying according to described page-response message is described user terminal selecting service core net, comprising:
If described IDNNS derives from temporary mobile subscriber identity TMSI, then from described IDNNS, parse network resource identifier NRI, and with the core net of this NRI correspondence service core net as described user terminal;
If described IDNNS derives from IMSI, then from described IDNNS, parse the V value, and the core net that this V value is corresponding is as the service core net of described user terminal.
4, the method for claim 1 is characterized in that, after the described page-response message that the described user terminal of described reception returns, also comprises step: parse IDNNS from this page response, and judge whether described IDNNS is to derive from TMSI;
If described IDNNS derives from TMSI, then obtain the IMSI of described user terminal.
5, a kind of core net choice device is characterized in that, comprises beep-page message receiver module, memory module, page response receiver module, the first selection module and the second selection module;
Described beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in described memory module, and sends described beep-page message to user terminal;
Described memory module is used to store described IMSI and core net sign;
Described page response receiver module is used to receive the page-response message that described user terminal returns, and starts described first and select module to be this user terminal selecting service core net;
Described first selects module, is used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtains the core net sign corresponding with described IMSI from described memory module, and will identify the core net of corresponding core net as described user terminal; Otherwise, start described second and select module;
Described second selects module, is used for the entrained information of page-response message that receives according to described page response receiver module, is described user terminal selecting service core net.
6, device as claimed in claim 5 is characterized in that, described second selects module to comprise:
Analyzing sub-module is used for resolving the IDNNS of described page-response message, and judge IDNNS be derive from TMSI or derive from IMSI;
The chooser module, the IDNNS that parses according to described analyzing sub-module is described user terminal selecting service core net; If IDNNS derives from TMSI, is described user terminal selecting service core net according to the NRI among the IDNNS then; If IDNNS derives from IMSI, is described user terminal selecting service core net according to the V value among the IDNNS then.
7, device as claimed in claim 5 is characterized in that, described device is integrated in radio network controller.
8, a kind of core net choice device is characterized in that, comprises beep-page message receiver module, memory module, page response receiver module, parsing module and the first selection module;
Described beep-page message receiver module is used to receive the IMSI beep-page message that core net sends, and obtains IMSI and this core net sign of wherein carrying, and is saved in described memory module, and sends described beep-page message to user terminal;
Described memory module is used to preserve described IMSI and core net sign;
Described page response receiver module is used to receive the page-response message that described user terminal returns;
Described parsing module is used for parsing IDNNS from the page-response message that described page response receiver module receives, if this IDNNS derives from TMSI, then starts described first and selects module;
Described first selects module, is used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtains the core net sign corresponding with described IMSI from described memory module, and will identify the core net of corresponding core net as described user terminal; Otherwise the described IDNNS that parses according to described parsing module is described user terminal selecting service core net.
9, device as claimed in claim 8 is characterized in that, described first selects module to comprise first processing sub and second processing sub;
Described first processing sub, be used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtain the core net sign corresponding, and will identify the core net of corresponding core net as described user terminal with described IMSI from described memory module; Otherwise, start described second processing sub;
Described second processing sub is used for parsing the NRI value from described IDNNS, and the core net that this NRI value is corresponding is as the service core net of described user terminal.
10, device as claimed in claim 8 is characterized in that, comprises that also second selects module;
Described parsing module judges that the IDNNS that parses derives from IMSI, then starts described second and selects module;
Described second selects module, is used to obtain the IMSI of described user terminal, if can get access to described IMSI, then obtains the core net sign corresponding with described IMSI from described memory module, and will identify the core net of corresponding core net as described user terminal; Otherwise the V value among the IDNNS that parses according to described parsing module is described user terminal selecting service core net.
11, device as claimed in claim 8 is characterized in that, described device is integrated in radio network controller.
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| CN101198177B (en) * | 2007-12-12 | 2010-07-28 | 华为技术有限公司 | Method, equipment and system for implementing paging |
| WO2010099663A1 (en) * | 2009-03-05 | 2010-09-10 | 华为技术有限公司 | Paging method, apparatus and mobile switching center, communication system |
| CN102098718A (en) * | 2011-01-07 | 2011-06-15 | 大唐移动通信设备有限公司 | Method and device for carrying out statistics on cell paging failure times |
| CN102177740A (en) * | 2008-10-09 | 2011-09-07 | 诺基亚公司 | Method for providing smart card (SIM) security by checking a temporary subscriber identifier (TMSI) |
| CN102238533A (en) * | 2010-04-29 | 2011-11-09 | 中兴通讯股份有限公司 | User paging method, device and system |
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