CN1984461A - Method for restoring user information by access position register - Google Patents
Method for restoring user information by access position register Download PDFInfo
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- CN1984461A CN1984461A CNA2006100725603A CN200610072560A CN1984461A CN 1984461 A CN1984461 A CN 1984461A CN A2006100725603 A CNA2006100725603 A CN A2006100725603A CN 200610072560 A CN200610072560 A CN 200610072560A CN 1984461 A CN1984461 A CN 1984461A
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Abstract
The method comprises: a) before updating VLR, saving subscriber ID of each mobile subscriber (MS) in VLR; b) after updating VLR, according to the saved subscriber ID, VLR sends the request to home location register (HLR) of each MS to get subscriber information of MS. The invention solves the problem of losing subscriber information due to the update of VLR.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of Visited Location Registor (VisitedLocation Register, VLR) method of recovery user profile.
Background technology
As everyone knows, the chief component of mobile communication system comprise the mobile subscriber (Mobile Station, MS), base station sub-system and network subsystem.Wherein, network subsystem mainly comprise mobile switching centre (Mobile Switching Center, MSC), attaching position register (Home LocationRegister, HLR) and Visited Location Registor VLR.MSC is the core of mobile communications network, and its major function is that the mobile subscriber who is positioned at this MSC controlled area is communicated control and management.
HLR is a kind of database that is used for storing local user's positional information.Each MS must register in certain HLR, and the content of registration is divided into two classes: the one, and nonvolatil information is as the priority level of Subscriber Number, access, predetermined type of service and security parameter etc.; Another kind is temporary needs updated information at any time, as the current present position of MS for information about.In the time of beyond MS roams into the zone that HLR serves, the MS positional information that the HLR registration is sent by the current affiliated area of MS, when any does not know to be in the MS in which zone when calling with assurance, all can know which zone it was at that time, and then set up communication link by the HLR of this MS.
VLR is a kind of database that is used to store visiting customer position information, store the current visiting user position information that activity in the lane place of service is provided by it.MS whenever enters a new lane place, just carries out location registers in the VLR of this lane place, and VLR obtains the information of MS from the HLR of this MS ownership, and the positional information of notifying this HLR to revise this MS, and the necessary condition of setting up call proceeding is provided for registered MS.
For improving the robustness of mobile communication system, need upgrade to VLR, but the VLR upgrading can cause among the VLR original stored user information all to be lost, losing of user profile will influence the proper communication of MS in this VLR lane place.Therefore, after the VLR upgrading, need recover the user profile among the VLR, the method that existing VLR recovers user profile mainly contains following two kinds:
One, VLR upgrading was carried out when telephone traffic is low at midnight, when early morning, MS came into play, start shooting, made a phone call etc. such as the user, and VLR obtains the user profile of MS to the HLR of MS ownership transmission position register request.
But, because all user profile are all lost among the VLR, therefore, when a large amount of MS came into play, this method can cause in the time of lacking, and VLR sends a large amount of position register request to HLR, and then cause VLR sharply to raise to the link load of HLR, have a strong impact on the stability of system; In addition, lose the back and before MS carries out location registers once more, in user profile if this MS of other customer call is arranged, then can make calling to continue, that is to say because of the position that can not find this MS, this MS during this period of time can't do called, can not communicate by letter normally.
Two, before VLR upgrading, user profile all among the VLR is preserved, and after the VLR upgrading is finished, the user profile of before having preserved is returned among the VLR go.Because general support of VLR reaches hundreds thousand of MS, therefore, the information that preserve each MS just needs VLR to carry mass-memory unit; If there is not jumbo memory device among the VLR, then needing all derives the user profile among the VLR and is saved in other memory device by means of communication, after VLR upgrading is finished, the user profile that had before derived is imported among the VLR again go.
But, in VLR, carry mass-memory unit, can increase the equipment cost of VLR; If the user profile among the VLR is all imported after the derivation again, because the information that needs importing and derive is too huge, must cause time of importing and deriving long, that is to say, the time of recovering user profile is long, like this, can cause unnecessary loss to the user, reduce the confidence level of user profile, because in the process of upgrading or recovery user profile, user's the mobile change that will bring positional information, recovery time is long more, the user distance origin-location is just far away more, and previous user profile of preserving is just insincere more.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of VLR to recover the method for user profile, the user profile that solution is caused by the VLR upgrading is lost problem, avoid VLR to the link load of HLR sharply raise, and MS once more before the location registers outstanding method do the generation of called situation, and when reducing the VLR equipment cost, reduce the time of recovering user profile.
For achieving the above object, technical scheme provided by the invention comprises following step:
A, before VLR upgrading, preserve the user ID of each mobile subscriber MS among the VLR;
B, after VLR upgrading, VLR sends request according to the user ID of preserving to the attaching position register HLR of each MS ownership, obtains the user profile of MS.
Wherein, the described user ID of steps A is kept in the memory device that VLR carries.
Perhaps, the described user ID of steps A is kept in the External memory equipment; Then further comprise after the VLR upgrading: the user ID that will be kept in the external equipment imports among the VLR.
In addition, can further comprise after the VLR upgrading:
VLR carries out verification one by one to the user ID of preserving, and judges whether verification is passed through, if pass through, and execution in step B then, otherwise, next user ID is carried out verification.
Described step B specifically comprises:
B1, after VLR upgrading, VLR sends request according to the user ID of preserving to the HLR of each MS ownership;
After B2, HLR receive the request that VLR sends, return the user profile of MS to VLR;
B3, VLR are kept at the user profile of receiving in the customer data base of self after receiving the user profile that HLR returns.
The described VLR of step B sends request to HLR: VLR sends request to HLR in batches.
Wherein, described user ID is international mobile subscriber identity IMSI or mobile subscriber's International ISDN sign indicating number MSISDN or Mobile Directory Number MDN or mobile logo sign indicating number MIN or Electronic Serial Number ESN.
This shows that method provided by the present invention has following beneficial effect:
1. the present invention preserves the user ID of MS before VLR upgrades, rather than the full detail of preservation MS, the memory space that takies is less, and noting be used in VLR go up to increase mass-memory unit, thereby has avoided owing to increase the problem of the VLR equipment cost increase that mass-memory unit causes;
2. the user ID of the present invention preservation MS before the VLR upgrading, rather than the full detail of preservation MS, the information that need import and derive is less, and the time of feasible importing and derived information is shorter, has reduced the time of recovery user profile;
3. the present invention is after the VLR upgrading is finished, VLR is according to the user ID of preserving, send a request message to HLR, obtain the user profile of losing, avoided when a large number of users comes into play, send the link congestion that position register request causes owing to concentrating, and VLR raises sharply to the link load of HLR, kept the stability of system effectively to HLR;
4. the present invention recovers user profile after upgrading, thereby has avoided can not doing called situation and taking place owing to losing user that user profile causes, and the user still can communicate by letter normally.
Description of drawings
Fig. 1 is the flow chart that recovers the user profile method in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, the embodiment that develops simultaneously with reference to the accompanying drawings is described in further detail the present invention.
Basic thought of the present invention is: before the VLR upgrading, and the user ID of preserving each MS among the VLR; After the VLR upgrading, VLR sends request according to the user ID of preserving to the HLR of each MS ownership, obtains the user profile of MS.
Referring to shown in Figure 1, the method for recovering user profile among this embodiment mainly comprises following step:
Step 101: before the VLR upgrading, the user ID of preserving each MS among the VLR;
Wherein, described user ID is international mobile subscriber identity (International MobileSubscriber Identity, IMSI), mobile subscriber's International ISDN sign indicating number (Mobile StationInternational ISDN Number, MSISDN), Mobile Directory Number (Mobile DirectoryNumber, MDN), mobile logo sign indicating number (Mobile Identification Number, MIN) or Electronic Serial Number (Electronic Serial Number, ESN) etc.
Described user ID can be kept in hard disk or the flash memory memory devices such as (FLASH), and described memory device can be that VLR carries, and also can be and VLR External memory equipment independently mutually.This step and existing method two are comparatively similar, all be to preserve data before the VLR upgrading, but with respect to existing method two, the data volume that the present invention need preserve or derive obviously reduce, and can not expend too big memory space and derivation time.
Step 102: after the VLR upgrading, VLR sends request according to the user ID of preserving to the HLR of each MS ownership;
The user who registers in same HLR has some same characteristic features, such as, every cellphone subscriber with the beginning of 130 or 131 fields is the user of UNICOM, therefore, VLR just can learn the HLR that the user belonged to shown in this sign according to the field scope of user ID.After upgrading was finished, for the user profile of recovering to lose in escalation process, VLR sent the request of obtaining user profile to the HLR of each MS ownership, to obtain the user profile of MS from HLR according to the user ID of preserving.
If before the VLR upgrading, user ID is kept in the memory device that VLR carries, and then after the upgrading, VLR sends request directly according to the user ID of preserving to the HLR of each MS ownership; If before the VLR upgrading, user ID is kept in the External memory equipment, then after the upgrading, the user ID that at first needs will be kept in the external equipment imports among the VLR, and VLR sends request again according to the user ID of preserving to the HLR of each MS ownership then.
If VLR to HLR send obtain the request of certain MS user profile before, this MS has carried out location registers in VLR, then VLR can obtain the user profile of this MS from the HLR of this MS ownership, and need not send the request of obtaining this MS user profile to the HLR of this MS ownership again according to the user ID of preserving.
Consider the link load situation of VLR to HLR, for fear of sending the link congestion that request causes owing to concentrating to HLR, VLR can select to send request to HLR in batches.The user profile that has 10,000 MS such as VLR needs to recover, and when then sending request, VLR can select to send one by one earlier the request of 100 MS, and after these 100 requests all obtain responding, send following 100 again, by that analogy, up to the request of all MS all send finish till.
After step 103:HLR receives the request that VLR sends, return the user profile of MS to VLR;
Step 104:VLR is kept at these user profile in the customer data base of self after receiving the user profile that HLR returns, thereby reaches the purpose of recovering user profile.
Wherein, before HLR sent request, can further comprise: VLR carried out verification one by one to the user ID of preserving, and judges whether verification is passed through, if pass through, then execution in step 102, sends request according to this user ID to HLR at VLR upgrading back, VLR; Otherwise, next user ID is carried out verification, carry out above-mentioned checking procedure, till the equal verification of all user ID finishes.
Briefly, verification just is meant that VLR checks whether the user ID of receiving is complete or legal.Such as, phone number all is 11 usually, if receive 15 phone number, VLR just thinks that this number is wrong.Certainly, actual checking procedure design may be more complicated.
Need to prove, before the VLR upgrading, also can preserve the out of Memory except that user ID,, but need the data volume of preservation or derivation bigger like this than the situation of only preserving or derive user ID as the positional information of MS.
As seen, method provided by the present invention is by preserving the user ID of MS, the user ID that reaches according to MS sends request to HLR, realized that the user data among the VLR recovers, solved the user profile that is caused by VLR upgrading and lose problem, avoided MS can't do the generation of called situation once more before the location registers, this method not only can avoid VLR sharply to raise to the link load of HLR, and can when reducing the VLR equipment cost, reduce the time of recovering user profile.
The above has carried out further detailed description to purpose of the present invention, technical scheme and beneficial effect; institute is understood that; the above is not in order to restriction the present invention; within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, a kind of Visited Location Registor VLR recovers the method for user profile, it is characterized in that this method may further comprise the steps:
A, before VLR upgrading, preserve the user ID of each mobile subscriber MS among the VLR;
B, after VLR upgrading, VLR sends request according to the user ID of preserving to the attaching position register HLR of each MS ownership, obtains the user profile of MS.
2, method according to claim 1 is characterized in that, the described user ID of steps A is kept in the memory device that VLR carries.
3, method according to claim 1 is characterized in that, the described user ID of steps A is kept in the External memory equipment;
Then further comprise after the VLR upgrading: the user ID that will be kept in the external equipment imports among the VLR.
4, method according to claim 1 is characterized in that, further comprises after the VLR upgrading:
VLR carries out verification one by one to the user ID of preserving, and judges whether verification is passed through, if pass through, and execution in step B then, otherwise, next user ID is carried out verification.
5, method according to claim 1 is characterized in that, described step B specifically comprises:
B1, after VLR upgrading, VLR sends request according to the user ID of preserving to the HLR of each MS ownership;
After B2, HLR receive the request that VLR sends, return the user profile of MS to VLR;
B3, VLR are kept at the user profile of receiving in the customer data base of self after receiving the user profile that HLR returns.
6, method according to claim 1 or 5 is characterized in that, the described VLR of step B sends request to HLR and is: VLR sends request to HLR in batches.
7, according to each described method of claim 1 to 5, it is characterized in that described user ID is international mobile subscriber identity IMSI or mobile subscriber's International ISDN sign indicating number MSISDN or Mobile Directory Number MDN or mobile logo sign indicating number MIN or Electronic Serial Number ESN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100725603A CN1984461A (en) | 2006-04-07 | 2006-04-07 | Method for restoring user information by access position register |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100725603A CN1984461A (en) | 2006-04-07 | 2006-04-07 | Method for restoring user information by access position register |
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| CN1984461A true CN1984461A (en) | 2007-06-20 |
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| CNA2006100725603A Pending CN1984461A (en) | 2006-04-07 | 2006-04-07 | Method for restoring user information by access position register |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018029A1 (en) * | 2009-08-12 | 2011-02-17 | 华为技术有限公司 | Method, system and home location register for implementing smoothing of signaling traffic |
| CN103716384A (en) * | 2013-12-17 | 2014-04-09 | 创新科存储技术（深圳）有限公司 | Method and device for realizing cloud storage data synchronization in cross-data-center manner |
-
2006
- 2006-04-07 CN CNA2006100725603A patent/CN1984461A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018029A1 (en) * | 2009-08-12 | 2011-02-17 | 华为技术有限公司 | Method, system and home location register for implementing smoothing of signaling traffic |
| CN101686454B (en) * | 2009-08-12 | 2013-03-20 | 华为技术有限公司 | Method and system for implementing smooth signaling traffic and home location register |
| US8625430B2 (en) | 2009-08-12 | 2014-01-07 | Huawei Technologies Co., Ltd. | Method and system for implementing smoothing of signaling traffic, and home location register |
| CN103716384A (en) * | 2013-12-17 | 2014-04-09 | 创新科存储技术（深圳）有限公司 | Method and device for realizing cloud storage data synchronization in cross-data-center manner |
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