CN100388801C - Method of rapid restoring position memory data for GSM system - Google Patents
Method of rapid restoring position memory data for GSM system Download PDFInfo
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- CN100388801C CN100388801C CNB021115974A CN02111597A CN100388801C CN 100388801 C CN100388801 C CN 100388801C CN B021115974 A CNB021115974 A CN B021115974A CN 02111597 A CN02111597 A CN 02111597A CN 100388801 C CN100388801 C CN 100388801C
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Abstract
The present invention relates to a method for rapidly restoring data of a position register (VLR) in a GSM system, namely a method for rapidly restoring original data of a position register (VLR) when MSC has abnormality and is determined to be restarted. In the method, user identification IMSI is preserved in VLR; the identification IMSI only has 8 bytes, so the identification can be recorded in a hard disk at any time without the influence on the performance of VLR. Because an interface between VLR and HLR is a standard interface specified in a GSM protocol, when VLR is restored, VLR automatically adjusts and reads IMSI in the hard disk according to system load, and automatically get data about the signed contract of users from HLR by utilizing standard service specified in the GSM protocol. Therefore, the impact caused by the imbalance of the system load because of the phenomenon that the system passively gets data from HLR when users make action after VLR is restored is avoided, and the problem of long starting time for MSC and VLR caused by data restoration and ordering from the hard disk after stored data in VLR is restored is overcome, so that data is rapidly restored without the influence on normal service.
Description
Technical field
The present invention relates to mobile communication technology, more particularly, relate to a kind of method that is used at the gsm system rapid restoring position memory data.
Background technology
In gsm system, all data that the user contracts all are kept in its attaching position register (HLR).When a user roams into new lane place (LAC), the automatic occurrence positions of mobile phone upgrades, Visited Location Registor this moment (being called for short VLR down) is initiated the position to user attaching location register (being called for short HLR down) and is upgraded, and obtains all data that the user contracts, and it is stored among the VLR; When the user roams out this MSC server, then this user will initiate the position to HLR and upgrade under another MSC, and this moment, HLR can initiate the deletion user data requests to original VLR, and original VLR deleted this user record.
Therefore, in the MSC system, preserve all users' in this alliance district (LAC) this moment subscription data among the VLR, user's mobility determines that these data are dynamic changes, and the main function of VLR is how to manage these dynamic datas among the MSC.When running into situations such as MSC system exception or upgrading, MSC, VLR reset and restart, and original dynamic data will all be lost among the VLR.Thereby when MSC power system capacity when very big (as surpassing 100,000), restore data and not influence the handling property of MSC most important how fast.
Strengthen along with MSC is professional, each user is being on the increase in the signatory data volume of HLR, and in big capacity MSC, the user data of preserving among the VLR will reach hundreds of million, so VLR generally adopts the memory database mode, and when VLR resets, these data will all abandon.If before VLR resets, preserve these data at hard disk, again from the disk recovery disposal data, will be very time-consuming then after resetting, VLR is oversize start-up time, and interrupting service is also very long service time; If do not preserve data, have only when User Activity (activities such as the user rises and exhale, called, transmitting-receiving short message), system is passive to obtain data from HLR, will cause system's telephone traffic inhomogeneous, may MSC, VLR, HLR be impacted, and influences the stability of a system.
Summary of the invention
The technical problem to be solved in the present invention is, designs a kind of method that is used for recovering among the gsm system MSC Visited Location Registor data, can be in the VLR memory database back restore data and do not influence regular traffic fast that resets.
The above-mentioned technical problem of the present invention solves like this, construct a kind of method that is used in fast quick-recovery Visited Location Registor (VLR) data of gsm system, may further comprise the steps: externally dynamically preserve in the memory with internal memory in the corresponding user ID IMSI of Visited Location Registor; When the Visited Location Registor in the internal memory resets, from described external memory storage, read described user ID IMSI in described Visited Location Registor, whether initiate the restore data process according to the system loading decision to attaching position register, or recover the several users data simultaneously, finish the Visited Location Registor data and recover.Described external memory storage can be a hard disk.
In according to method provided by the invention, each described user ID IMSI has the length of 8 bytes.
In according to method provided by the invention, adopt the interface of gsm protocol regulation between described VLR and the described HLR, VLR reads IMSI from described external memory storage after, initiatively obtain the data that the user contracts to described HLR by this interface.
Enforcement is according to the method that is used at the fast quick-recovery access location memory data of gsm system provided by the invention, by the subscriber identity data IMSI among the VLR dynamically being kept in hard disk or other external memory storage, when internal memory VLR resets, IMSI recovers the VLR data in the hard disk by reading, thereby after having overcome the VLR data and resetting, system is passive when User Activity obtains data from HLR and causes the unbalanced impact that causes of system loading, after also having overcome VLR storage data and resetting, from the disk recovery disposal data, cause MSC, VLR oversize start-up time.Not only can prevent the loss of data that data cause when unusual restarting occurring because of MSC, and when resetting legacy data fast, not influence regular traffic.
Embodiment
Technical solution of the present invention is consider to preserve user ID IMSI in VLR, and this sign IMSI only is 8 BYTE, does not influence the VLR performance so can be recorded in hard disk or other external memory storage at any time.Because the interface between VLR and the HLR is the standard interface of gsm protocol regulation, when VLR resetted, VLR regulated automatically according to system loading and read IMSI from hard disk, utilizes the standard business of gsm protocol regulation, initiatively obtains the data that the user contracts to HLR.
Technical scheme of the present invention can divide two parts to realize:
1. dynamic memory user ID IMSI is in hard disk or other external memory storage
When the user roams into new VLR, when registering in VLR, VLR judges that it is new user, then initiates the position to HLR and upgrades, and the position is upgraded and finished, and VLR preserves user ID IMSI at hard disk; When the user roams out this VLR, HLR initiates the order of deletion user data to VLR, and VLR deletes this user record, and simultaneously, VLR deletes this user record from hard disk.
So can guarantee mobility owing to the user, among the VLR all the time dynamic memory data that all users in this alliance district contract and dynamic memory user ID IMSI in hard disk.
2.VLR the data when resetting are recovered
When VLR reset reset after, VLR regulates automatically according to the system loading situation, reads user ID from hard disk, according to system loading, whether decision initiates the restore data process to HLR, or recovers the several users data simultaneously.VLR utilizes the standard business of gsm protocol regulation by user ID IMSI, obtains the data that the user contracts to HLR.So just can restore data not influence regular traffic again.
Claims (4)
1. a method that is used in the fast quick-recovery Visited Location Registor VLR data of gsm system is characterized in that, may further comprise the steps: externally dynamically preserve in the memory with internal memory in the corresponding user ID IMSI of Visited Location Registor; When the Visited Location Registor in the internal memory resets, from described external memory storage, read described user ID IMSI in described Visited Location Registor, whether initiate the restore data process according to the system loading decision to attaching position register, or recover the several users data simultaneously, finish the Visited Location Registor data and recover.
2. according to the described method of claim 1, it is characterized in that each described user ID IMSI has the length of 8 bytes.
3. according to the described method of claim 1, it is characterized in that, adopt the interface of gsm protocol regulation between described Visited Location Registor and the described attaching position register, Visited Location Registor reads IMSI from described external memory storage after, initiatively obtain the data that the user contracts to described attaching position register by this interface.
4. according to each described method among the claim 1-3, it is characterized in that described external memory storage is a hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021115974A CN100388801C (en) | 2002-04-29 | 2002-04-29 | Method of rapid restoring position memory data for GSM system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021115974A CN100388801C (en) | 2002-04-29 | 2002-04-29 | Method of rapid restoring position memory data for GSM system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455604A CN1455604A (en) | 2003-11-12 |
| CN100388801C true CN100388801C (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021115974A Expired - Fee Related CN100388801C (en) | 2002-04-29 | 2002-04-29 | Method of rapid restoring position memory data for GSM system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090132613A1 (en) * | 2005-04-25 | 2009-05-21 | Koninklijke Philips Electronics, N.V. | Apparatus, Method and System For Restoring Files |
| CN100459810C (en) * | 2006-05-30 | 2009-02-04 | 华为技术有限公司 | Method and system for realizing mobile user data safety backup by distributed business |
| CN101296502B (en) * | 2007-04-28 | 2013-01-30 | 华为技术有限公司 | Method and device for sending short messages after exception of user signing data |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004006A1 (en) * | 1992-08-07 | 1994-02-17 | Nokia Telecommunications Oy | Method for updating subscriber data in a cellular radio system and a cellular radio system |
| CN1286884A (en) * | 1997-11-26 | 2001-03-07 | 艾利森公司 | System and method for mobile terminal positioning |
-
2002
- 2002-04-29 CN CNB021115974A patent/CN100388801C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004006A1 (en) * | 1992-08-07 | 1994-02-17 | Nokia Telecommunications Oy | Method for updating subscriber data in a cellular radio system and a cellular radio system |
| CN1286884A (en) * | 1997-11-26 | 2001-03-07 | 艾利森公司 | System and method for mobile terminal positioning |
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| CN1455604A (en) | 2003-11-12 |
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Owner name: HAIMEN TECHNOLOGY DEVELOPMENT CORP. Free format text: FORMER OWNER: ZTE CORPORATION Effective date: 20130723 |
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Effective date of registration: 20130723 Address after: 226144, No. 600, Beijing Road, Haimen, Jiangsu, Nantong province (room 0212 of administrative center) Patentee after: Haimen science and Technology Development General Corporation Address before: 518057 Nanshan District high tech Industrial Park, Guangdong, South Road, science and technology, ZTE building, legal department Patentee before: ZTE Corporation |
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