CN101047900B - Recovery method of terminal called service, mobile exchange center and system - Google Patents
Recovery method of terminal called service, mobile exchange center and system Download PDFInfo
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- CN101047900B CN101047900B CN2007100988980A CN200710098898A CN101047900B CN 101047900 B CN101047900 B CN 101047900B CN 2007100988980 A CN2007100988980 A CN 2007100988980A CN 200710098898 A CN200710098898 A CN 200710098898A CN 101047900 B CN101047900 B CN 101047900B
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Abstract
This invention relates to a resuming method and a system for called services of terminals, in which, the method includes: a standby mobile switch center gets the current location region information of a terminal attributing to an invalid mobile switch center and initiates bp informatioin to the terminal at the current location region, the mobile switch center having received the response information of the bp transmits a request information for re-distributing TMSI, the terminal is registered in a valid mobile switch center in the switch center pool where the invalid center places. This inventioin also provides a communication system and a mobile switch center.
Description
Technical field
The present invention relates to the mobile communication technology of the communications field, relate in particular to restoration methods, mobile switching centre and the system of terminal called service.
Background technology
At third generation partner program (3rd Generation Partnership Project; Be called for short 3GPP) technical specification (technology standard; Be called for short TS); Be among the 3GPP TS23.236, described IU FLEX (Intra-domain connection of RAN nodes to multipleCN nodes) technology, this technological purpose is to realize radio access network (RadioAcess Network in the same territory; Be called for short RAN) the node networking mode that can connect with a plurality of core net (core network is called for short CN) node.
As shown in Figure 1, core net node is mobile switching centre's (Mobile switching center is called for short MSC); Move the exchange pond and comprise several MSC, if the some MSC in mobile switching centre pond (MSC POOL), when for example MSC1 would break down; User data among the MSC1 will be lost; When the called request that is registered in certain user on the MSC1 this moment took place, user's attaching position register (Home Location Register is called for short HLR) was got the roaming number failure to moving exchanging center MSC 1; The called of user can't be connected, only if the called of user could be connected after the user initiatively carried out the position renewal or carries out caller.Therefore; Between a certain mobile switching centre age at failure; Have only queued for log-on initiatively to carry out the position renewal or carry out caller the user of this mobile switching centre; Again be registered to and move in the exchange pond after other mobile switching centres, user's called service just can be connected, otherwise user's called service is in the call failure state all the time.
One Chinese patent application numbers 200510118251.0 discloses a kind of method and system that prevent mobile terminal calling fault; In the disclosed technical scheme; At attaching position register or signaling transfer point (signal transfer points; Abbreviation STP) configuration MSC POOL in the database; When a certain MSC lost efficacy, from corresponding M SC POOL, select one to substitute the MSC that lost efficacy by the network equipment (HLR or STP), adopt the same or analogous algorithm of radio network controller (RNC) to select during selection.Though disclosed technical scheme causes the problem of user's called failure in the time of can solving mobile switching centre failure in the mobile switching centre pond, have following defective:
When 1, the network equipment of user registration was supported above-mentioned functions, the network equipment can be selected the mobile switching centre that substitutes, and user's called service can recover; But for whole Operation Network, the network equipment of not all user's registration can both be supported above function; In this case, in whole Operation Network, not all called service can both utilize above-mentioned mode to recover; Therefore; If thoroughly solve the above problems, just need the network equipments such as all HLR of upgrading the whole network, STP, this cost is too big;
2, disclosed technical scheme needs the network equipment to realize selection algorithm, and the amount of configuration data that this can increase the network equipment (HLR or STP) influences the equipment self traffic handing capacity, and the equipment self traffic handing capacity is reduced;
3, the mobile switching centre that substitutes of network equipment selection does not preserve user's present position-region information; Therefore; Calling user need be to the coverage of MSC Pool international mobile subscriber identity (the International Mobile Subscriber Identification Number with the user; Be called for short IMSI) for identifying, paging carries out paging, i.e. the whole network paging (Global Paging); In case carry out the whole network paging, then can cause radio channel congested, make other users can't normally use radio channel;
4, as 3G (Third Generation) Moblie network (3nd Generation; Abbreviation 3G) user is from the Iu interface; Be radio network controller (Radio network control; Be called for short RNC) with core net (core network is called for short CN) between interface when responding paging (with reference to 3GPP TS23.236sec4.4), the ID of beep-page message is " IMSI "; But the ID of page-response message is temporary mobile subscriber identity (Temporary Mobile Subscriber Identity is called for short TMSI).When RNC receives and is the page response of sign with " TMSI "; Can't obtain beep-page message is the paging of being initiated by which mobile switching centre; Therefore page-response message may turn back to any available MSC in the MSC POOL through RNC, and this MSC possibly not be the MSC that the network equipment (HLR or STP) is selected; Therefore, for 3G subscription, called service possibly still can't be connected.
Summary of the invention
The restoration methods and the system that the purpose of this invention is to provide a kind of terminal called service solve effectively that prior art needs that upgrade of network apparatus, appliance services disposal ability reduce, the whole network paging causes technological deficiencies such as radio channel is congested.
To achieve these goals, the invention provides a kind of restoration methods of terminal called service, comprising:
Wherein said step 1 can for:
Attaching position register is forwarded to the subsequent use mobile switching centre of inefficacy mobile switching centre through the signal switching PRN request message of naming a person for a particular job;
Subsequent use mobile switching centre obtains the present position-region information at terminal from its Backup Data;
Subsequent use mobile switching centre initiates beep-page message to the terminal present position-region.
From its Backup Data, obtain the present position-region information and the IMSI information at terminal behind the fail message of acquisition inefficacy mobile switching centre of subsequent use mobile switching centre;
It is the beep-page message of sign that subsequent use mobile switching centre initiates with IMSI the terminal present position-region automatically.
To achieve these goals, the invention allows for a kind of communication system, comprising:
The network equipment is used to preserve mobile switching centre pond and mobile switching centre thereof and terminal information;
The mobile switching centre pond comprises a plurality of mobile switching centres; Said mobile switching centre is connected with the network equipment, is used for the terminal present position-region of inefficacy mobile switching centre is initiated beep-page message; The page-response message of non-local registration terminal is sent the request message of redistributing TMSI, the terminal is registered in the mobile switching centre pond in arbitrary effective mobile switching centre again;
The terminal of interior one or more other mobile switching centre of each mobile switching centre's backup pool and location area information are as the subsequent use mobile switching centre of said one or more other mobile switching centre in the said mobile switching centre pond.
For realizing above-mentioned purpose, the present invention also provides a kind of mobile switching centre, comprising:
Memory module is used to store the location area information of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; After being used for receiving the terminal called information that lost efficacy a certain mobile switching centre of said one or more other mobile switching centre the back transmits the present position-region at said terminal is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
The present invention also provides another kind of mobile switching centre, comprising:
Memory module is used to store location area information and the effective status of said one or more other mobile switching centre of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; When the one or more mobile switching centres that are used to detect said one or more other mobile switching centre lost efficacy; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
When the present invention was lost efficacy in certain mobile switching centre; The subsequent use mobile switching centre of inefficacy mobile switching centre can be established to the wireless connections at terminal through the page-response message of paging being initiated at the terminal of nonregistered user and receive; The request message of TMSI is redistributed in initiation; The user of fault mobile switching centre is moved; With endpoint registration in the mobile switching centre pond in other mobile switching centres, thereby the called service of recovering terminal effectively solves the called problem at the terminal of the mobile switching centre that breaks down.The present invention can select the subsequent use mobile switching centre of alternate routing appointment; And said subsequent use mobile switching centre backup attaching is in the present position-region information at the terminal of inefficacy mobile switching centre, the network equipment of the whole network of need not upgrading (as: Signalling Transfer Point supports primary, spare route branch to be clipped to mobile switching centre or subsequent use mobile switching centre); Each mobile switching centre disposes subsequent use mobile switching centre, does not need the network equipment (HLR or STP) to realize selection algorithm, does not also influence the appliance services disposal ability; The backup of subsequent use mobile switching centre has the present position-region information at terminal, when paging, only in ad-hoc location, carries out, and avoids the whole network paging to cause the congested of radio channel, and the dynamic data home position information of back-up terminals only, and Backup Data is little, realizes easily.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is existing networking structure sketch map;
Fig. 2 is restoration methods embodiment one flow chart of terminal called service of the present invention;
Fig. 3 is Fig. 2 step 1 embodiment one flow chart;
Fig. 4 resolves sketch map for the restoration methods embodiment two of terminal called service of the present invention;
Fig. 5 resolves sketch map for the restoration methods embodiment three of terminal called service of the present invention;
Fig. 6 is this Fig. 2 step 1 embodiment two flow charts;
Fig. 7 resolves sketch map for the restoration methods embodiment four of terminal called service of the present invention;
Fig. 8 is communication system embodiment one structural representation of the present invention;
Fig. 9 is communication system embodiment two structural representations of the present invention;
Figure 10 is communication system embodiment three structural representations of the present invention;
Figure 11 implements a structural representation for mobile switching centre of the present invention;
Figure 12 is the embodiment of mobile switching centre two structural representations of the present invention;
Figure 13 is the embodiment of mobile switching centre three structural representations of the present invention;
Figure 14 is the embodiment of mobile switching centre four structural representations of the present invention.
Embodiment
Fig. 2 is restoration methods embodiment one flow chart of terminal called service of the present invention.As shown in Figure 2, present embodiment may further comprise the steps:
The mobile radio station at step 2, said terminal feeds back page-response message after receiving said paging;
Step 4, said mobile radio station send position updating request after receiving described request message, with said endpoint registration in the mobile switching centre pond in arbitrary effective mobile switching centre;
The mobile switching centre at step 5, the said terminal of registration upgrades the attaching position register at said terminal, and from attaching position register, obtains the user data at terminal.
When the present invention was lost efficacy in certain mobile switching centre; The subsequent use mobile switching centre of inefficacy mobile switching centre can be established to the wireless connections at terminal through the page-response message of paging being initiated at the terminal of nonregistered user and receive; Initiate to redistribute the request message of TMSI in the back that connects; The user of fault mobile switching centre is moved; With endpoint registration in the mobile switching centre pond in other effective mobile switching centre, thereby the called service of recovering terminal effectively solves the called problem at the terminal of the mobile switching centre that breaks down.The present invention can select the subsequent use mobile switching centre of alternate routing appointment; And said subsequent use mobile switching centre backup attaching is in the present position-region information at the terminal of inefficacy mobile switching centre, the network equipment of the whole network of need not upgrading (as: Signalling Transfer Point supports primary, spare route branch to be clipped to mobile switching centre or subsequent use mobile switching centre); Each mobile switching centre disposes subsequent use mobile switching centre, does not need the network equipment (HLR or STP) to realize selection algorithm, does not also influence the appliance services disposal ability; The backup of subsequent use mobile switching centre has the present position-region information at terminal, when paging, only in ad-hoc location, carries out, and avoids the whole network paging to cause the congested of radio channel, and the dynamic data home position information of back-up terminals only, and Backup Data is little, realizes easily.
The present invention can have multiple multi-form embodiment; Below with various network equipment: attaching position register and Signalling Transfer Point are that example combines accompanying drawing that technical scheme of the present invention is illustrated; This does not also mean that the applied instantiation of the present invention can only be confined in the particular network equipment; Those of ordinary skill in the art should understand; The specific embodiments that hereinafter provided is some examples in the multiple its preferred usage; The present position-region information at the terminal of other one or more mobile switching centre of backup of any mobile switching centre, and to the terminal present position-region initiate paging set up mobile switching centre to the wireless connections at terminal or the request message of TMSI is redistributed in non-local registration terminal transmission all should be within technical scheme of the present invention scope required for protection.
When avoiding that certain MSC lost efficacy in mobile switching centre pond (be called for short MSC pool); Cause the called failure at terminal; When knowing that certain MSC lost efficacy, select the MSC of the subsequent use mobile switching centre replacement inefficacy of this MSC, the user terminal on the inefficacy MSC is moved; With endpoint registration in the mobile switching centre pond on other effective MSC, with the called service at normal process terminal.Those of ordinary skills should understand; Certain mobile switching centre possibly be the specified mobile switching centre of primary route; Also possibly be the specified subsequent use mobile switching centre of the alternate routing of another mobile switching centre; For example: it is its subsequent use mobile switching centre that the alternate routing of MSC1 is specified MSC2, MSC3, and it is its subsequent use mobile switching centre that the alternate routing of MSC2 is specified MSC3, MSC4, and then MSC2 is the mobile switching centre of primary route appointment; Also be the subsequent use mobile switching centre of MSC1, and the like.Therefore; Hereinafter described mobile switching centre or subsequent use mobile switching centre are not meant two kinds of different fully independently mobile switching centres; And be meant in concrete a certain operating process it used as the mobile switching centre of primary route or the mobile switching centre of alternate routing appointment, sometimes also possible denotation be same mobile switching centre.
3-7 is elaborated below in conjunction with accompanying drawing: when knowing that certain MSC lost efficacy; Subsequent use MSC through this inefficacy MSC transfers to other arbitrary effective MSC with the terminal of inefficacy MSC; With the called service at normal process terminal, the terminal called service of inefficacy MSC is restored.
Fig. 3 is step 1 embodiment one flow chart among Fig. 2.As shown in Figure 3, present embodiment step 1 comprises:
Fig. 4 resolves sketch map for the restoration methods embodiment two of terminal called service of the present invention.As shown in Figure 4, HLR transfers through STP to the signaling of MSC.The alternate routing of each MSC in STP is configured to mobile switching centre pond (MSC POOL) when certain MSC lost efficacy, is forwarded to the specified MSC of alternate routing by STP with signaling; The specified MSC of alternate routing need back up ID (IMSI) and the location area information (LAI) of the specified MSC of primary route simultaneously.
If the current ownership MSC at terminal is MSC1, STP is configured to the alternate routing of MSC1 and points to MSC2, and promptly MSC2 is the subsequent use mobile switching centre of MSC1.As shown in Figure 4, when MSC1 breaks down, handle as follows the called request at a certain terminal this moment:
1, describes for convenient; Suppose MSC and VLR Visitor Location Register (Visit Location Register; Be called for short VLR) be that an integral body and MSC number are identical, as shown in Figure 4 with its related VLR number, HLR obtains the terminal from customer data base current home MSC is MSC1 or VLR1; HLR sends the request of Providing Roaming Number (Provide Roaming Number is called for short PRN) through STP to MSC1, and message---" PRN MSC1 " is with the roaming number at acquisition terminal;
2, STP finds MSC1/VLR1 fault; So STP transmits through alternate routing the PRN request message to MSC2, promptly send PRN request message---" PRN MSC2 " to MSC2, as shown in Figure 4;
3, MSC2/VLR2 knows that through judgement said terminal is the non-local registered user of MSC2/VLR2, replys the failed message that Provides Roaming Number to HLR---" PRN Ack " or do not respond the PRN request of HLR;
When 4, MSC2/VLR2 replys the PRN failed message to HLR or do not respond the PRN request of HLR or afterwards the present position-region (LAI) of terminal U is initiated beep-page message---" Paging ", the LAI information at terminal obtains from the Backup Data of subsequent use moving exchanging center MSC 2;
5, after the mobile radio station of terminal U (Mobile station is called for short MS) was received beep-page message, being returned with IMSI to MSC2 by base station controller (Base controlor is called for short BSC) was the page-response message of ID---" Paging Response "; Mobile radio station is the second generation mobile communications network mobile radio station MS of (2nd Generation is called for short 2G) in the present embodiment;
6, MSC2 is through the IMSI ID, and the terminal that obtains the initiation page-response message is the non-local registered user of MSC2, and then MSC2 initiates to redistribute request message---" TMSIReallocation " of TMSI; In redistributing the request message of TMSI, comprise (the NullNetwork Resource Identity that do not have network resource identifier; Abbreviation Null-NRI) temporary mobile subscriber identity, and distribute non-broadcast location district information (Non-Broadcast LAI) to give mobile radio station MS;
7, after the message that contains Non-Broadcast LAI is received at the terminal,, initiate location update request message immediately because be different from the present position-region (LAI) of storage---" Location Update ";
8, the terminal is registered on any the available MSC in the MSC POOL through location update request message; Like MSC3; Upgrade HLR simultaneously terminal U is registered to MSC3, HLR as shown in Figure 4 inserts user data---and " Insert Subscriber Data " is to MSC3.
After the terminal successfully was registered to MSC3 and upgrades HLR, follow-up called request to the terminal can normally be set up through the moving exchanging center MSC 3 of registration.Above-mentioned Null-NRI is a kind of special networks resource identification; In MSC Pool, load the migration processing in; Being used to indicate the NAS Node Selection Function network element is that terminal mobile radio station MS newly selects an available MSC server according to the principle of load balancing, and said non-broadcast location district information is a kind of special location area information, need in system information broadcast message, not broadcast; In MSC Pool, load in the processing of moving, be used for triggering terminal and initiate the position renewal again.In the prior art; Receive location update message like MSC from mobile radio station; And MSC finds that this user terminal is the user who comes from other MSC roamings, then distributes to a TMSI of mobile radio station at this terminal, and the request message of initiating then to redistribute TMSI is to mobile radio station.Initiate to redistribute the request message of TMSI after receiving the location update message of non-local registration terminal in the prior art, and comprise the present position-region LAI information that newly assigned TMSI and mobile station location updating message are brought up in the request message of the TMSI of redistributing of the prior art.Receive O&M instruction in the prior art when MSC is loaded migration request; Initiate heavily to distribute; And the request message of redistributing TMSI comprises the TMSI and the non-broadcast location district information of NULL-NRI field; Utilize non-broadcast location district information triggering terminal to initiate this characteristic of position renewal again, the terminal is registered on other effective MSC again.Among the present invention, MSC is that the page-response message of receiving non-local registration terminal is just initiated the load migration terminal is registered on other effective MSC again, and this is substantial different with prior art.
In the embodiment shown in fig. 4, when the A interface (with reference to 3GPP TS23.236) of MS between base station controller (BSC) and core net (CN) responds paging, be IMSI like the ID in the beep-page message, then the ID of page-response message also is IMSI.After BSC receives and is the paging request of ID with IMSI, storage IMSI and the MSC2 corresponding relation of initiating beep-page message, therefore according to the IMSI of storage and the corresponding relation of the MSC that sends paging request, page-response message can turn back to MSC2 through BSC.
Fig. 5 resolves sketch map for the restoration methods embodiment three of terminal called service of the present invention.Fig. 5 and Fig. 4 are similar; Difference is that mobile radio station is 3G (Third Generation) Moblie network mobile radio station (the User equipment of (3ndGeneration is called for short 3G) in the present embodiment; Be called for short UE); 3G mobile radio station UE if TMSI is still preserved at the terminal, then is the identification feedback page-response message with TMSI after receiving that IMSI is the beep-page message of sign; If it is the beep-page message of sign that 2G mobile radio station MS receives with IMSI, just is the identification feedback page-response message with IMSI.It is to turn back to the MSC that sends beep-page message through BSC, A interface that 2G mobile radio station MS returns page-response message.3G mobile radio station UE returns page-response message to be passed through from radio network controller (Radio network controlor; Be called for short RNC) and core net between Iu interface (with reference to 3GPP TS23.236 sec4.4) response paging; ID like beep-page message is IMSI, but the ID of the page-response message of feedback is TMSI.RNC receives with TMSI when being the page response of sign; Can not know with TMSI to be the page-response message of sign and the corresponding relation of the MSC2 that initiates beep-page message; Therefore page-response message may turn back to any available MSC, the for example MSC3 among Fig. 5 in the MSC POOL through RNC.The 5th step among Fig. 4 embodiment is become: after beep-page message was received at the terminal, being returned with TMSI to an effective moving exchanging center MSC 3 by RNC was the page-response message of ID---" Paging Response ".Subsequent step replaces MSC2 to accomplish MSC3, and remainder is similar, is not described in detail in this, and concrete process of analysis is as shown in Figure 5.Those of ordinary skills should understand; A interface and Iu interface are the common practise in this area; A interface as herein described is the interface between base station controller (BSC) and the core net (CN), and the Iu interface is the interface between radio network controller (RNC) and the core net.
Fig. 6 is step 1 embodiment two flow charts among Fig. 2.As shown in Figure 6, present embodiment comprises:
Step 11 ', obtain mobile switching centre's fail message;
Step 12 ', the subsequent use mobile switching centre of inefficacy mobile switching centre obtains the present position-region LAI information at terminal and the ID IMSI at terminal from its Backup Data;
Step 13 ', the subsequent use mobile switching centre beep-page message of automatically the terminal present position-region being initiated the IMSI sign.
Present embodiment is after subsequent use MSC (MSC2 in like Fig. 7) finds that the master is with MSC (MSC1 in like Fig. 7) fault; Automatically shift with the terminal of MSC belonging to the master; Present position-region is initiated paging from the trend terminal, and the endpoint registration on the inefficacy MSC is arrived other the effective MSC in the mobile switching centre pond.Different with Fig. 3 embodiment, embodiment illustrated in fig. 3 when called request is arranged at the terminal, ability is transferred to its subsequent use mobile switching centre through the signal switching inefficacy mobile switching centre that names a person for a particular job, and accomplishes follow-up call treatment and to the registration again at terminal; Present embodiment has been simplified the setting of Signalling Transfer Point route; After obtaining the inefficacy of a certain mobile switching centre; Automatically with in the user terminal registration of assignement of inefficacy mobile switching centre other effective mobile switching centre in the mobile switching centre pond; After completion was shifted in registration, the called requested service at terminal can recover, and the called service with terminal obtains the faster beneficial effect that recovers.
Backup mobile switching centre knows that the mode that mobile switching centre lost efficacy comprises: autosense mode of data sync link or semi-automatic mode between artificial mode, subsequent use MSC and the main MSC that is provided with, wherein:
1) artificial set-up mode is meant when finding that certain MSC lost efficacy, and adopts manual type this MSC on HLR or STP to be set to failure state, and triggers and shift the terminal that belongs to inefficacy MSC;
2) perceptive mode is meant the data sync link through mobile switching centre automatically, and subsequent use MSC discovery master leads with MSC automatically when correctly not responding with MSC and is set to failure state, and triggers and shift the terminal that belongs to inefficacy MSC;
3) semi-automatic mode is not meant as subsequent use MSC and finds the main alarm that produces when correctly responding with MSC, confirm and this MSC is set to failure state by manual work,, and trigger and shift the terminal that belongs to inefficacy MSC.
Fig. 7 resolves sketch map for the restoration methods embodiment four of terminal called service of the present invention.Below in conjunction with Fig. 7 the recovery process of this terminal called service is illustrated:
The current ownership MSC that supposes the terminal is MSC1, and MSC2 is as the subsequent use mobile switching centre of MSC1, user's sign IMSI and location area information on the MSC2 backup MSC 1.MSC1 breaks down, and endpoint registration is following to the processing procedure of other effective mobile switching centre:
1) detects MSC1 break down (artificial, perception or semi-automatic mode) automatically; The subsequent use moving exchanging center MSC 2 of MSC1 is that ID is initiated beep-page message---" Paging " to the terminal present position-region with IMSI, and the present position-region at terminal obtains from the Backup Data of MSC2;
2) after mobile radio station MS received beep-page message, being returned with IMSI to MSC2 by base station controller (BSC) was the page-response message of ID---" Paging Response ";
3) terminal of MSC2 acquisition initiation page-response message is the non-local registered user of MSC2, and then MSC2 initiates to redistribute request message---" the TMSI Reallocation " of TMSI; In described request message, comprise the do not have network resource identifier temporary mobile subscriber identity of (Null-NRI), and distribute non-broadcast location district information (Non-Broadcast LAI) to give mobile radio station MS;
4) after mobile radio station MS receives the message that contains Non-Broadcast LAI,, then initiate position updating request immediately because be different from the present position-region (LAI) of storage---" Location Update ";
5) terminal is registered on any the available MSC in the MSC POOL through position updating request, like MSC3, upgrades HLR simultaneously endpoint registration is arrived MSC3, and HLR as shown in Figure 7 inserts user data---and " Insert Subscriber Data " is to MSC3.
After the terminal successfully was registered to MSC3 and upgrades HLR, follow-up called request can normally be set up through the moving exchanging center MSC 3 of registration.
Fig. 6 and Fig. 7 embodiment initiate paging to the terminal on all inefficacy MSC, impel all terminals on the inefficacy MSC to initiate the position renewal, and then transfer to other available MSC.If but some terminals have been initiated caller or had been done the position and upgrade; And be registered to other available MSC; Force again transfer flow is initiated at all terminals; The MSC that then lost efficacy goes up the user terminal that has shifted through caller or position renewal and need be transferred once more, has repeated flow, also can increase network burden.Fig. 3-Fig. 5 embodiment shifts the technical scheme at terminal through the PRN message trigger, can avoid top unnecessary repetitive displacement operation, promptly only transfer flow is initiated at the terminal that does not take place to upgrade in caller or position.Automatically the technical scheme that the terminal is shifted is different with Fig. 3-Fig. 5 embodiment; Can specifically be applied to following situation: after operator finds that certain MSC lost efficacy; VIP user on this inefficacy MSC (not being that inefficacy MSC is gone up all users) is initiated the forced branch flow process, go up the called service of responsible consumer with recovery inefficacy MSC more early.
In the embodiment shown in fig. 7, MS is during from A interface response paging, and after BSC received and is the paging request of ID with IMSI, page-response message can turn back to MSC2 through BSC; With Fig. 5 as a same reason, when terminal UE during from Iu interface response paging, page-response message may turn back to any available MSC in the MSC POOL through RNC; The MSC3 among Fig. 7 for example; Subsequent step replaces MSC2 to accomplish MSC3, and remainder is similar, is not described in detail in this.
In addition; When subsequent use mobile switching centre does not support to back up inefficacy mobile switching centre terminal location district information; Also can the user terminal of inefficacy mobile switching centre be registered in arbitrary effective mobile switching centre again through All Ranges paging and the heavy allocation flow of follow-up TMSI that MSC POOL is covered, thus the called requested service of recovering terminal.
Fig. 8 is communication system embodiment one structural representation of the present invention.As shown in Figure 8, present embodiment comprises:
The mobile switching centre pond comprises mobile switching centre 21,22,23, and each mobile switching centre is connected with the network equipment 1 respectively, is used for the terminal present position-region of inefficacy mobile switching centre is initiated beep-page message; Page-response message to non-local registration terminal is sent the request message of redistributing temporary mobile subscriber identity (TMSI); The terminal is registered in the mobile switching centre pond in arbitrary effective mobile switching centre again, and terminal that said mobile switching centre 21,22 or 23 can other mobile switching centre of backup pool and location area information will be as said other the subsequent use mobile switching centres (like the terminal of mobile switching centre 22 and/or 23 backup mobile switching centres 21 of mobile switching centre and location area information thereof the subsequent use mobile switching centre as mobile switching centre 21) of mobile switching centre;
The network equipment 1; Be connected respectively with mobile switching centre 21,22,23; Be used to preserve mobile switching centre pond and mobile switching centre 21,22,23 and terminal information; When the mobile switching centre of knowing current place, terminal lost efficacy, select the subsequent use mobile switching centre of said inefficacy mobile switching centre to carry out subsequent voice calls and handle.
The said network equipment can be attaching position register HLR, is applicable to the local network user; The said network equipment can be Signalling Transfer Point STP also, is applicable to non-local network user and roamer.The network equipment should support mobile switching centre to arrive the function of subsequent use mobile switching centre, and promptly a certain mobile switching centre breaks down or when losing efficacy, the network equipment can select subsequent use mobile switching centre to accomplish re-registration process.When the network equipment is Signalling Transfer Point; The alternate routing of each mobile switching centre in the Signalling Transfer Point configuration mobile switching centre pond; When a certain mobile switching centre lost efficacy, signaling is forwarded to the specified subsequent use mobile switching centre of this mobile switching centre's alternate routing carries out the subsequent voice calls processing.Mobile switching centre described in the present embodiment 21,22,23 also should possess the function of the location area information of the user terminal that backs up a certain or a plurality of mobile switching centres; So that follow-up present position-region to the terminal is initiated paging, in difference and the prior art network blockage problem that the whole network paging causes is initiated at the terminal.Simultaneously; Because mobile switching centre's backup is a certain or the location area information of the user terminal of a plurality of mobile switching centres; Can the described method of Fig. 2-Fig. 7 shift the terminal of inefficacy mobile switching centre according to the present invention, be registered in other effective mobile switching centre with artificial, automatic or semi-automatic mode; Specifically can repeat no more referring to the explanation in the said method.
Fig. 9 is communication system embodiment two structural representations of the present invention.The network equipment is specially attaching position register 11 in embodiment illustrated in fig. 9; Also comprise base station controller (BSC) 31; Be connected with mobile switching centre 21,22,23, the page-response message at terminal returned the mobile switching centre that sends beep-page message after being used to receive the beep-page message of mobile switching centre; And transmit the corresponding message between mobile switching centre and the terminal, and all the other and Fig. 8 are similar, and same section no longer repeats.
In embodiment illustrated in fig. 9 mobile switching centre has been carried out refinement, mobile switching centre 23 comprises: memory module 232 is used to store main non-local registration terminal location area information and main effective status with mobile switching centre with mobile switching centre; Respond module 231; Be connected with memory module 232; Be used for when said master was lost efficacy with mobile switching centre, automatically the present position-region at the terminal of inefficacy mobile switching centre initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.Other mobile switching centre mobile switching centre 21 or 22 internal structures as shown in Figure 9 is identical, no longer illustrates.
Figure 10 is communication system embodiment three structural representations of the present invention.The network equipment is specially Signalling Transfer Point 12 in the present embodiment; Also comprise radio network controller 32; Be connected with mobile switching centre 21 ', 22 ', 23 ', the page-response message at terminal returned arbitrary effective mobile switching centre after being used to receive the beep-page message of mobile switching centre; And the corresponding message between forwarding mobile switching centre and the terminal.
In embodiment illustrated in fig. 10 mobile switching centre has been carried out refinement, present embodiment mobile switching centre 23 ' comprising: memory module 232 ' is used to store the non-local registration terminal location area information of other mobile switching centre; Respond module 231 '; Be connected with memory module 232 '; Be used for after the request of Providing Roaming Number (PRN) message at the terminal of a certain inefficacy mobile switching centre of receiving that Signalling Transfer Point transmits; Terminal present position-region to said inefficacy mobile switching centre is initiated beep-page message, sends the request message of redistributing TMSI after receiving non-local registration terminal page-response message.Other mobile switching centre mobile switching centre 21 ' or 22 ' internal structure as shown in Figure 10 is identical, no longer illustrates.
Figure 11 implements a structural representation for mobile switching centre of the present invention.Present embodiment provides a kind of mobile switching centre, on existing mobile switch, also is provided with:
Respond module 41; Be connected with memory module 42; After being used for receiving the terminal called information that lost efficacy a certain mobile switching centre of said one or more other mobile switching centre the back transmits the present position-region at said terminal is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
Figure 12 is the embodiment of mobile switching centre two structural representations of the present invention.Present embodiment provides another kind of mobile switching centre, comprises mobile switch, on existing mobile switch, also is provided with:
Respond module 41; Be connected with memory module 42; When the one or more mobile switching centres that are used to detect said one or more other mobile switching centre lost efficacy; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
Figure 13 is the embodiment of mobile switching centre three structural representations of the present invention.Present embodiment provides another mobile switching centre, comprises mobile switch 8, also comprises:
Respond module 61; Be connected with memory module 62; After being used to receive the terminal called information that lost efficacy a mobile switching centre back transmits the present position-region at said terminal is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
Figure 14 is the embodiment of mobile switching centre four structural representations of the present invention.Mobile switching centre in the present embodiment comprises mobile switch 8, also comprises:
Respond module 71; Be connected with memory module 72; When being used for detecting following inefficacy of one or more mobile exchange of one or more other mobile switching centre; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
In sum; When the present invention was lost efficacy in certain mobile switching centre; The subsequent use mobile switching centre of inefficacy mobile switching centre can be established to the wireless connections at terminal through the page-response message of paging being initiated at the terminal of nonregistered user and receive; The request message of TMSI is redistributed in initiation, the user of fault mobile switching centre is moved, with endpoint registration in the mobile switching centre pond in other mobile switching centres; Thereby the called service of recovering terminal effectively solves the called problem at the terminal of the mobile switching centre that breaks down.The present invention can select the subsequent use mobile switching centre of alternate routing appointment, and said subsequent use mobile switching centre backup attaching is in the present position-region information at the terminal of inefficacy mobile switching centre, the network equipment of the whole network of need not upgrading; Each mobile switching centre disposes subsequent use mobile switching centre, need not realize selection algorithm, does not also influence the appliance services disposal ability; The backup of subsequent use mobile switching centre has the present position-region information at terminal, when paging, only in ad-hoc location, carries out, and avoids the whole network paging to cause the congested of radio channel, and the dynamic data home position information of back-up terminals only, and Backup Data is little, realizes easily.For total interface; Like A interface or IU interface, all can realize recovery to terminal called service, implementation method is simple; And utilize that existing equipment such as STP support equipment are active and standby to be clipped to the active and standby mobile switching centre that uses with the route branch, can solve the called problem at terminal.
What should explain at last is: above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and the scope of technical scheme of the present invention.
Claims (36)
1. the restoration methods of a terminal called service is characterized in that, comprising:
Step 1, the acquisition of subsequent use mobile switching centre belong to the present position-region information at the terminal of inefficacy mobile switching centre, and beep-page message is initiated in said present position-region in the terminal;
Step 2, receive that the mobile switching centre of page-response message sends the request message redistribute TMSI;
Step 3, terminal are registered to arbitrary effective mobile switching centre in the mobile switching centre pond at inefficacy mobile switching centre place according to described request message.
2. the restoration methods of terminal called service according to claim 1 is characterized in that, said step 1 is specially:
Attaching position register is forwarded to the subsequent use mobile switching centre of inefficacy mobile switching centre through the signal switching PRN request message of naming a person for a particular job;
Subsequent use mobile switching centre obtains the present position-region information at terminal from its Backup Data;
Subsequent use mobile switching centre initiates beep-page message to the terminal present position-region.
3. the restoration methods of terminal called service according to claim 2 is characterized in that, attaching position register comprises through the signal switching subsequent use mobile switching centre that the PRN request message is forwarded to inefficacy mobile switching centre that names a person for a particular job:
The called request message of attaching position register receiving terminal; Obtain the current VLR Visitor Location Register/mobile switching centre at terminal, the current VLR Visitor Location Register/mobile switching centre to the terminal sends the PRN request message that is used to obtain the terminal roaming number through Signalling Transfer Point;
Behind the fail message of the current VLR Visitor Location Register/mobile switching centre at Signalling Transfer Point acquisition terminal said PRN request message is forwarded to subsequent use mobile switching centre through alternate routing.
4. the restoration methods of terminal called service according to claim 2 is characterized in that, attaching position register also comprises after being forwarded to the subsequent use mobile switching centre of inefficacy mobile switching centre through the signal switching PRN request message of naming a person for a particular job:
Subsequent use mobile switching centre sends PRN request failure information or does not respond said PRN request message to attaching position register.
5. the restoration methods of terminal called service according to claim 1 is characterized in that, said step 1 is specially:
After subsequent use mobile switching centre obtains the fail message of inefficacy mobile switching centre, from its Backup Data, obtain the present position-region information and the IMSI information at terminal;
It is the beep-page message of sign that subsequent use mobile switching centre initiates with IMSI the terminal present position-region automatically.
6. the restoration methods of terminal called service according to claim 5 is characterized in that, the fail message that said subsequent use mobile switching centre obtains inefficacy mobile switching centre is specially:
When finding that mobile switching centre lost efficacy, adopt manual type this mobile switching centre on attaching position register or Signalling Transfer Point to be set to failure state, and send the fail message of said inefficacy mobile switching centre to subsequent use mobile switching centre.
7. the restoration methods of terminal called service according to claim 5 is characterized in that, the fail message that said subsequent use mobile switching centre obtains inefficacy mobile switching centre is specially:
The data sync link of subsequent use mobile switching centre through mobile switching centre, said automatically inefficacy mobile switching centre is set to failure state when finding that inefficacy mobile switching centre does not correctly respond.
8. the restoration methods of terminal called service according to claim 5 is characterized in that, the fail message that said subsequent use mobile switching centre obtains inefficacy mobile switching centre is specially:
Subsequent use mobile switching centre finds to produce when inefficacy mobile switching centre does not correctly respond alarm through the data sync link of mobile switching centre, and mobile switching centre is set to failure state by the definite and said inefficacy of manual work.
9. the restoration methods of terminal called service according to claim 1; It is characterized in that; Also comprise: when not having the present position-region information at terminal in the Backup Data of said subsequent use mobile switching centre, subsequent use mobile switching centre initiates beep-page message from the All Ranges that the mobile switching centre pond at place, trend terminal covers.
10. the restoration methods of terminal called service according to claim 1; It is characterized in that; Also comprise: when not having the present position-region information at terminal in the Backup Data of said subsequent use mobile switching centre, subsequent use mobile switching centre is that sign is initiated beep-page message to the All Ranges that the mobile switching centre pond at place, terminal covers with IMSI through manual type.
11. the restoration methods according to the described arbitrary terminal called service of claim 1-10 is characterized in that, also comprises before the said step 2:
Second generation mobile communications network terminal is received behind the said beep-page message and to be returned the page-response message that comprises the IMSI sign from the A interface between base station controller and the core net.
12. the restoration methods of terminal called service according to claim 11 is characterized in that, described step 2 specifically comprises:
Subsequent use mobile switching centre knows that from the page-response message that receives the terminal is the nonregistered user of subsequent use mobile switching centre;
Subsequent use mobile switching centre sends the request message of redistributing TMSI, comprises the temporary mobile subscriber identity and the non-broadcast location district message that do not have the Internet resources sign in the described request message.
13. the restoration methods according to the described arbitrary terminal called service of claim 1-10 is characterized in that, also comprises before the said step 2:
The 3G (Third Generation) Moblie network terminal returns the page-response message that comprises the TMSI sign from the Iu interface between radio network controller and the core net after receiving said beep-page message.
14. the restoration methods of terminal called service according to claim 13 is characterized in that, described step 2 specifically comprises:
Mobile switching centre outside subsequent use mobile switching centre, the inefficacy mobile switching centre knows that from the page-response message that receives the terminal is the nonregistered user of this mobile switching centre;
Mobile switching centre outside said subsequent use mobile switching centre, the inefficacy mobile switching centre sends the request message of redistributing TMSI, comprises the temporary mobile subscriber identity and the non-broadcast location district message that do not have the Internet resources sign in the described request message.
15. the restoration methods of terminal called service according to claim 13 is characterized in that, described step 2 specifically comprises:
Subsequent use mobile switching centre knows that from the page-response message that receives the terminal is the nonregistered user of subsequent use mobile switching centre;
Subsequent use mobile switching centre sends the request message of redistributing TMSI, comprises the temporary mobile subscriber identity and the non-broadcast location district message that do not have the Internet resources sign in the described request message.
16. the restoration methods according to the described arbitrary terminal called service of claim 1-10 is characterized in that, described step 3 comprises:
Location update message is sent after receiving the request message of the said TMSI of redistributing in the terminal, with said endpoint registration in the mobile switching centre pond in arbitrary effective mobile switching centre;
The mobile switching centre that registers said terminal upgrades the attaching position register at said terminal, and receives terminal use's data that attaching position register sends.
17. the restoration methods of terminal called service according to claim 12 is characterized in that, described step 3 comprises:
Location update message is sent after receiving the request message of the said TMSI of redistributing in the terminal, with said endpoint registration in the mobile switching centre pond in arbitrary effective mobile switching centre;
The mobile switching centre that registers said terminal upgrades the attaching position register at said terminal, and receives terminal use's data that attaching position register sends.
18. the restoration methods of terminal called service according to claim 14 is characterized in that, described step 3 comprises:
Location update message is sent after receiving the request message of the said TMSI of redistributing in the terminal, with said endpoint registration in the mobile switching centre pond in arbitrary effective mobile switching centre;
The mobile switching centre that registers said terminal upgrades the attaching position register at said terminal, and receives terminal use's data that attaching position register sends.
19. the restoration methods of terminal called service according to claim 15 is characterized in that, described step 3 comprises:
Location update message is sent after receiving the request message of the said TMSI of redistributing in the terminal, with said endpoint registration in the mobile switching centre pond in arbitrary effective mobile switching centre;
The mobile switching centre that registers said terminal upgrades the attaching position register at said terminal, and receives terminal use's data that attaching position register sends.
20. the restoration methods of terminal called service according to claim 16 is characterized in that, the mobile switching centre that registers said terminal obtains terminal use's data from attaching position register alternately through one or many.
21. the restoration methods of terminal called service according to claim 17 is characterized in that, the mobile switching centre that registers said terminal obtains terminal use's data from attaching position register alternately through one or many.
22. the restoration methods of terminal called service according to claim 18 is characterized in that, the mobile switching centre that registers said terminal obtains terminal use's data from attaching position register alternately through one or many.
23. the restoration methods of terminal called service according to claim 19 is characterized in that, the mobile switching centre that registers said terminal obtains terminal use's data from attaching position register alternately through one or many.
24. a communication system is characterized in that, comprising:
The network equipment is used to preserve mobile switching centre pond and mobile switching centre thereof and terminal information;
The mobile switching centre pond comprises a plurality of mobile switching centres; Said mobile switching centre is connected with the network equipment, is used for the terminal present position-region of inefficacy mobile switching centre is initiated beep-page message; The page-response message of non-local registration terminal is sent the request message of redistributing TMSI, the terminal is registered in the mobile switching centre pond in arbitrary effective mobile switching centre again;
The terminal of interior one or more other mobile switching centre of each mobile switching centre's backup pool and location area information are as the subsequent use mobile switching centre of said one or more other mobile switching centre in the said mobile switching centre pond.
25. communication system according to claim 24 is characterized in that, the said network equipment is an attaching position register.
26. communication system according to claim 24; It is characterized in that; The said network equipment is a Signalling Transfer Point; Said Signalling Transfer Point disposes the alternate routing of each mobile switching centre in the mobile switching centre pond, when losing efficacy in a certain mobile switching centre, signaling is forwarded to the specified subsequent use mobile switching centre of this mobile switching centre's alternate routing carries out the subsequent voice calls processing.
27. communication system according to claim 26 is characterized in that, said mobile switching centre comprises:
Memory module is used to store the non-local registration terminal location area information of one or more other mobile switching centre;
Respond module; Be connected with memory module; Be used for behind the PRN request message at the terminal of a certain inefficacy mobile switching centre of receiving that Signalling Transfer Point transmits; Terminal present position-region to said inefficacy mobile switching centre is initiated beep-page message, sends the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
28., it is characterized in that said mobile switching centre comprises according to the described arbitrary communication system of claim 24-26:
Memory module is used to store the non-local registration terminal location area information of one or more other mobile switching centre and the effective status of one or more other mobile switching centre;
Respond module; Be connected with memory module; When being used for losing efficacy in one or more mobile switching centres of said certain one to multiple other mobile switching centre; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
29. according to the described arbitrary communication system of claim 24-27, it is characterized in that, also comprise:
Base station controller is connected with mobile switching centre, the page-response message at terminal is returned the mobile switching centre that sends beep-page message after being used to receive the beep-page message of mobile switching centre; And the corresponding message between forwarding mobile switching centre and the terminal.
30. according to the described arbitrary communication system of claim 24-27, it is characterized in that, also comprise:
Radio network controller is connected with mobile switching centre, the page-response message at terminal is returned arbitrary effective mobile switching centre after being used to receive the beep-page message of mobile switching centre; And the corresponding message between forwarding mobile switching centre and the terminal.
31. communication system according to claim 28 is characterized in that, also comprises:
Base station controller is connected with mobile switching centre, the page-response message at terminal is returned the mobile switching centre that sends beep-page message after being used to receive the beep-page message of mobile switching centre; And the corresponding message between forwarding mobile switching centre and the terminal.
32. communication system according to claim 28 is characterized in that, also comprises:
Radio network controller is connected with mobile switching centre, the page-response message at terminal is returned arbitrary effective mobile switching centre after being used to receive the beep-page message of mobile switching centre; And the corresponding message between forwarding mobile switching centre and the terminal.
33. a mobile switching centre comprises mobile switch, it is characterized in that, said mobile switch is provided with:
Memory module is used to store the location area information of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; After being used for receiving the terminal called information that lost efficacy a certain mobile switching centre of said one or more other mobile switching centre the back transmits the present position-region at said terminal is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
34. a mobile switching centre comprises mobile switch, it is characterized in that, said mobile switch is provided with:
Memory module is used to store location area information and the effective status of said one or more other mobile switching centre of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; When the one or more mobile switching centres that are used to detect said one or more other mobile switching centre lost efficacy; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
35. a mobile switching centre comprises mobile switch, it is characterized in that, also comprises:
Memory module is connected with mobile switch, is used to store the location area information of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; After being used to receive the terminal called information that lost efficacy a mobile switching centre back transmits the present position-region at said terminal is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
36. a mobile switching centre comprises mobile switch, it is characterized in that, also comprises:
Memory module is connected with mobile switch, is used to store location area information and the effective status of said mobile switching centre of the non-local registration terminal of one or more other mobile switching centre;
Respond module; Be connected with memory module; When the one or more mobile switching centres that are used to detect said one or more other mobile switching centre lost efficacy; Automatically the present position-region at the terminal of inefficacy mobile switching centre is initiated beep-page message, send the request message of redistributing TMSI after receiving non-local registration terminal page-response message.
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| CN103037333B (en) * | 2011-09-29 | 2015-08-12 | 中国电信股份有限公司 | SMS processing method, system and sms center |
| CN102550055B (en) * | 2011-12-26 | 2014-06-04 | 华为技术有限公司 | Method, device and system of called retrieve |
| WO2016011652A1 (en) * | 2014-07-25 | 2016-01-28 | 华为技术有限公司 | Called speech paging method and apparatus, and mobility management entity |
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