CN101415196B - Smooth dilation upgrade method for look-in position register - Google Patents
Smooth dilation upgrade method for look-in position register Download PDFInfo
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- CN101415196B CN101415196B CN200810217653XA CN200810217653A CN101415196B CN 101415196 B CN101415196 B CN 101415196B CN 200810217653X A CN200810217653X A CN 200810217653XA CN 200810217653 A CN200810217653 A CN 200810217653A CN 101415196 B CN101415196 B CN 101415196B
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Abstract
The invention discloses a Visitor Location Register VLR smooth expansion upgrading method, including the steps: (1) capacity expansion upgrading is implemented on the Visitor Location Register, new main processor modules are added; (2) according to new load sharing strategies, each main processor module migrates the user information not belonging to the module to a main processor module which the information belongs to and deletes the user information. In the capacity expansion upgrading process, each user MP module conducts user information migration according to the new load sharing strategies, so as to achieve a goal without restarting MP modules in the upgrading process of VLR, thus avoiding the problem of greatly increased signaling amount between the VLR and the HLR as all the users need re-registration a period of time after the capacity expansion upgrading of existing VLR, relieving the load of the link between the VLR and the HLR and meantime avoiding consuming a great amount of user information recovery time.
Description
Technical field
The present invention relates to the communications field, relate more specifically to the smooth dilation upgrade method of a kind of VLR (Visitor LocationRegister, VLR Visitor Location Register).
Background technology
The chief component of mobile communication system comprise the mobile subscriber (Mobile Station, MS), base station sub-system and network subsystem.Network subsystem mainly comprise mobile switching centre (MobileSwitching Center, MSC), attaching position register (Home Location Register, HLR) and VLR Visitor Location Register (Visitor Location Register, 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, as Subscriber Number, the priority level of 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, can know present zone by the HLR of this MS, and then set up communication link.
VLR is a kind of database that is used to store visiting customer position information, store the current positional information that the visitor of activity in the lane place of service is provided by it.When MS enters a new lane place, just the VLR in this lane place carries out location registers, 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.
When VLR equipment carries out dilatation, needing increases new MP (Master Processor, primary processor) module, restarts all MP then, dispose the user data of sharing originally on each MP, influence the carrying out of user's regular traffic to avoid old user data.
Therefore, after the VLR capacity expansion and upgrading, need the user data among the VLR be recovered according to new load sharing strategy, the method for existing VLR restoring user data mainly contains:
Behind the carrying out when midnight, telephone traffic was lower of one .VLR capacity expansion and upgrading, early morning MS User Activity, such as user's start, make a phone call to wait operation, VLR sends position register request to the HLR of MS ownership, obtains the user profile of MS.If a large amount of MS User Activity in the short time will certainly cause the link load between VLR and the HLR sharply to raise, influence the stability of system; Because user data is eliminated, other user can't call out this user, can't communicate by letter normally simultaneously.
Two. before the upgrading, user profile all among the VLR is preserved, and after 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 storage facility; 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 just may be far away more, and previous user profile of preserving is just insincere more.
Three. preserve the user ID of each MS among the VLR before the upgrading in this locality, upgrading back VLR is according to the user ID of preserving, and the HLR to each MS ownership sends request in batches, obtains the user profile of MS.This method has alleviated the link load between VLR and the HLR to a certain extent, but still need take a large amount of link circuit resources, and needs to take the user ID that local resource is preserved all MS inevitably.
Summary of the invention
Technical problem to be solved by this invention provides a kind of VLR VLR smooth expansion upgrading method, is reduced in the link load between the VLR and HLR in the VLR capacity expansion and upgrading process, reduces consumed time.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of method of visitor location register VLR smooth expansion upgrading comprises step:
(1) described VLR Visitor Location Register carries out capacity expansion and upgrading, increases new main processor modules;
(2) each main processor modules is according to new load sharing strategy, non-attribution is migrated to the main processor modules of its ownership in the user profile of this main processor modules, simultaneously in this main processor modules the described non-attribution of deletion in the user profile of this main processor modules.
Wherein, new load sharing strategy is by network management configuration.
Wherein, in the transition process of user profile, the main processor modules of described ownership is at first judged the user profile that whether stores relative users on this main processor modules when receiving the user profile of moving,
If no, then directly insert the user profile that described migration comes; If have, then judge the user profile that whether stored user information newly comes in described migration on this main processor modules, if, then abandon the user profile that described migration comes, otherwise, with the user profile deletion of the relative users on this main processor modules, insert the user profile that described migration comes again earlier.
Wherein, described each main processor modules stops the assigning process of temporary mobile subscriber identity in the process of migrated users information.
Wherein, described each main processor modules is restarted the assigning process of temporary mobile subscriber identity behind the migrated users end of message, and restarts time described temporary mobile subscriber identity of numerical value combination generation in minute timing with new module.
Wherein, described user profile comprises: elemental user information and user signing contract information.
Compared with prior art, the present invention can carry out the migration of user profile according to new load sharing strategy between each user MP module in VLR capacity expansion and upgrading process, reached the purpose that need not to restart the MP module in the VLR escalation process, has following beneficial effect:
1) avoided existing VLR in a period of time after capacity expansion and upgrading because all users need to re-register and then make the problem that signaling amount greatly increases between VLR and the HLR, alleviated the burden of link between VLR and the HLR;
2) directly carry out the migration of user profile owing between the MP module, thereby do not need to obtain the user profile of MS, thereby avoided expending a large amount of user profile recovery times, guaranteed user's interests to HLR.
Description of drawings
Fig. 1 is in the VLR escalation process, carries out the method flow diagram of user profile migration between the MP;
Fig. 2 after the MP migration finishes, is the method schematic diagram of roamer's distribution T MSI;
Fig. 3 is that MP obtains the new process schematic diagram of restarting number of times.
Embodiment
Core concept of the present invention is: VLR carries out capacity expansion and upgrading, does not restart after increasing new MP module; Each MP module is according to new load sharing strategy, and non-attribution is migrated to the MP module of its ownership, this user profile of deletion in this module simultaneously in the user profile of this module.
The present invention is described in further detail below in conjunction with drawings and the specific embodiments:
See also Fig. 1, this figure is depicted as in the present embodiment, in the VLR escalation process, carries out the method flow diagram of user profile migration between the MP:
101, the load sharing strategy of each MP of network management configuration, and to each MP transmission load sharing data change notice;
102, after MP receives load sharing data change notice, close TMSI and distribute control switch, and this control information is synchronized to standby MP; The flow process of trigger data migration afterwards;
103, each MP scans the user profile on this module, according to new load sharing strategy (wherein, new load sharing strategy is by network management configuration), non-attribution in the regulation is sent to the purpose MP module of its ownership, all user profile of deleting this MS on this module afterwards in the packing of the user profile of the MS of this module;
104, after purpose MP module receives the next user profile of migration, judge whether this module has existed the user profile of corresponding MS, if there is no, then directly insert the user profile that migration is come;
If exist, the update time of then more above-mentioned two users' information,, then abandon the user profile that migration comes if the user profile on this module is new; If the user profile that migration comes is new, then delete the user profile on this module earlier, insert the user profile that migration comes again.
Owing to have a large amount of user profile on the MP module,, carry out the branch batch scanning in step 103 so timer can be set if, can the load of system be exerted an influence once having scanned all user profile in the circulation.May have the user profile corresponding M S that does not belong to this MP module when dividing batch scanning takes place professional, at this moment when VLR operates the user profile of this MS, can directly the user profile of this MS be carried out the data migration, finish the user profile of deleting this MS again after the data migration.
See also Fig. 2, this figure is depicted as the process for roamer's distribution T MSI of VLR in the present embodiment, may further comprise the steps:
201, the user starts shooting and initiates the position renewal;
202, the VLR of user roaming place obtains user's master data from the HLR of user attaching, according to the load sharing strategy these data is inserted into corresponding MP;
203, MP is before distributing new TMSI for the roamer, judge current whether can distribution T MSI (be that MP judges separately herein, do not need to pass through OMP);
204, judge current VLR whether just the transition process of the user profile between capacity expansion and upgrading and MP whether finish, if the transition process of the user profile between the MP finishes as yet, then cannot distribution T MSI; Otherwise can distribution T MSI;
205, the MP TMSI new, the subsequent user portability TMSI business that makes a call for the user distributes.
See also table 1, this table is depicted as the composition schematic diagram of present TMSI, TMSI is by random number, Reset counting/disaster tolerance (promptly restarting number of times), the TMSI assignment flag, user record number and module information combine, and use TMSI to initiate when professional the user, can determine the MP module at user place according to the module information among the TMSI, according to the user record position the record.
| 31～29 | 28～27 | 26 | 25~24 | 23～17 | 16～0 |
| Random number | Reset counting/disaster tolerance | The TMSI assignment flag | User record numbers 2 | Module/unit information | User record number 1 |
Table 1
Because MP is not restarted among the present invention, thereby when generating TMSI, restarting number of times and can not change among the TMSI, if like this on the module 3 recording mechanism be that the user A of N is moved to module 4, new user B is the Location Registration of N in the recording mechanism of module 3, be when this user B distributes new TMSI, might be distributed into and the identical TMSI of user A of moving to module 4, like this, when the former TMSI of the follow-up usefulness of user A initiates business, can navigate to the record of user B according to TMSI, thus confusion reigned.For head it off, the present invention adopts following scheme to solve this problem: MP is after having moved user profile, obtain the new time numerical value of restarting to OMP, make up generation TMSI, so just can reduce the probability that distributes identical TMSI for different user with this new time numerical value of restarting.
Fig. 3 has described and has obtained the new process of restarting number of times, may further comprise the steps:
301, finish migration operation after, MP sends message to obtain the new number of times of restarting to OMP;
302, OMP receives after the message and distributes the new number of times of restarting for MP;
303, MP get access to new restart number of times after, open TMSI and distribute control switch;
304, the new control information of restarting number of times and beginning TMSI distribution is synchronized to standby MP, the number of times combination of restarting that follow-up use is new generates TMSI.
In sum, adopt method of the present invention, after the VLR capacity expansion and upgrading, no longer need to restart MP, at utmost avoided the situation that the signaling amount between the VLR and HLR heightens after the dilatation, and reduced spent update time.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. the method for a visitor location register VLR smooth expansion upgrading is characterized in that, comprises step:
(1) described VLR Visitor Location Register carries out capacity expansion and upgrading, increases new main processor modules;
(2) each main processor modules is according to new load sharing strategy, non-attribution is migrated to the main processor modules of its ownership in the user profile of this main processor modules, simultaneously in this main processor modules the described non-attribution of deletion in the user profile of this main processor modules.
2. the method for visitor location register VLR smooth expansion upgrading as claimed in claim 1 is characterized in that, described new load sharing strategy is by network management configuration.
3. the method for visitor location register VLR smooth expansion upgrading as claimed in claim 1, it is characterized in that, in the transition process of user profile, the main processor modules of described ownership is at first judged the user profile that whether stores relative users on this main processor modules when receiving the user profile of moving;
If no, then directly insert the user profile that described migration comes; If have, then judge the user profile that whether stored user information newly comes in described migration on this main processor modules, if, then abandon the user profile that described migration comes, otherwise, with the user profile deletion of the relative users on this main processor modules, insert the user profile that described migration comes again earlier.
4. as the method for claim 1 or 3 described visitor location register VLR smooth expansion upgrading, it is characterized in that described each main processor modules stops the assigning process of temporary mobile subscriber identity in the process of migrated users information.
5. the method for visitor location register VLR smooth expansion upgrading as claimed in claim 4, it is characterized in that, described each main processor modules is behind the migrated users end of message, restart the assigning process of temporary mobile subscriber identity, and restart time described temporary mobile subscriber identity of numerical value combination generation with new module in minute timing.
6. the method for visitor location register VLR smooth expansion upgrading as claimed in claim 1 is characterized in that, described user profile comprises: elemental user information and user signing contract information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810217653XA CN101415196B (en) | 2008-11-25 | 2008-11-25 | Smooth dilation upgrade method for look-in position register |
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| CN200810217653XA CN101415196B (en) | 2008-11-25 | 2008-11-25 | Smooth dilation upgrade method for look-in position register |
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| CN101415196A CN101415196A (en) | 2009-04-22 |
| CN101415196B true CN101415196B (en) | 2011-01-05 |
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| CN109996195B (en) * | 2018-01-02 | 2021-09-10 | 中国移动通信有限公司研究院 | Short message card writing method, device, equipment and computer readable storage medium |
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