CN101166309B - A method for realizing user data synchronization in dual home system - Google Patents
A method for realizing user data synchronization in dual home system Download PDFInfo
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- CN101166309B CN101166309B CN2007101470254A CN200710147025A CN101166309B CN 101166309 B CN101166309 B CN 101166309B CN 2007101470254 A CN2007101470254 A CN 2007101470254A CN 200710147025 A CN200710147025 A CN 200710147025A CN 101166309 B CN101166309 B CN 101166309B
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Abstract
The method includes steps: establishing connection to standby MSCS, main MSCS sends request info for starting communication to standby MSCS; after receiving the said request info, the standby MSCS returns response info; through data dictionary (DD) authentication message, the main MSCS sends DD to the standby MSCS, and DD includes ID of DD in use for main MSCS to synchronize user data; after receiving DD, the standby MSCS returns confirmator message for DD back to the main MSCS; the main MSCS sends message of data synchronization to the standby MSCS. When rearrangement is carried out between main MSCS and standby MSCS, HLR can provide stable service, and reduce load of wireless network at the same time so as to prevent data synchronization from abnormity after main MSCS or standby MSCS is upgraded.
Description
Technical field
The present invention relates to field of mobile communication, relate in particular to the method that realizes user data synchronization in a kind of double attaching system.
Background technology
Dual-homed disaster tolerance technology is a kind of method that improves the stability of a system by the network element backup.In a double attaching system, comprise one or more master and use swap server, and one is these main standby servers that backup functionality is provided with swap server.After the master was with network element failure, standby server detected fault and takes place, and auto switching is main usefulness, for the user provides continual service.
In field of mobile communication, MSCS (mobile swap server) is mobile network's a kernel entity, and in order to improve the service stability of network, we are applied to MSCS with dual-homed disaster tolerance technology.That is to say, in the mobile network,, provide a backup MSC S for a plurality of or a master use MSCS.This standby MSCS takes over the other side's business after the master is with the MSCS fault, continue as the user service is provided.
Standby MSCS takes in the main process with the MSCS business, originally re-registers standby MSCS main with the user under the MSCS.And standby MSCS will provide service for these users, must obtain these user's data from HLR (attaching position register), this causes, and standby MSCS can obtain the lot of data amount from HLR in the short time, the load of HLR increases suddenly, and the result has influenced the ability that HLR provides service continually and steadily.Under the worst case, this may cause the HLR collapse, causes large-area service disconnection.
On the other hand, after the master switched with MSCS and standby MSCS, standby MSCS did not have user position information, when the user as called the time, standby MSCS must carry out paging to whole network range, rather than paging in certain band of position, and this will increase the load of wireless network greatly.
For solving above-mentioned two problems, we propose the dynamic data backup technology of double attaching system, and dynamic data wherein is meant user's CAMEL-Subscription-Information, positional information, and other provide professional necessary multidate information for the user.Standby MSCS directly uses these information to provide service as the user after obtaining these multidate informations from the master with MSCS, can reduce the load of switching back HLR and wireless side greatly.
Summary of the invention
In view of the above problems, the present invention aims to provide the method that realizes user data synchronization in a kind of double attaching system.
For solving the problems of the technologies described above, the invention provides the method that realizes user data synchronization in a kind of double attaching system.
Realize the method for user data synchronization in a kind of double attaching system, described method comprises step:
The master establishes a connection to standby MSCS with MSCS, sends communication and begins solicited message to standby MSCS;
Standby MSCS begins response message to main with the MSCS Returning communication after receiving that main communication with MSCS begins solicited message;
The master sends data dictionary to standby MSCS with MSCS by the data dictionary authentication message, and described data dictionary comprises the data dictionary sign of the main MSCS of using synchronizing user data;
Standby MSCS receives described data dictionary authentication message, to the main MSCS return data dictionary confirmatory message of using; And
The main MSCS of using sends data synchronization message to standby MSCS, and wherein data synchronization message comprises user data, and the master discerns synchronous user data with MSCS by described data dictionary sign.
In the said method, after standby MSCS received the main data dictionary that sends with MSCS, discovery can not recognition data dictionary sign, return data dictionary authentification failure message, and carry standby MSCS can not recognition data dictionary sign; Main receive data dictionary authentification failure message with MSCS after, according to described return can not recognition data dictionary sign revise data dictionary after, send the data dictionary authentication message to standby MSCS.
In the said method, after standby MSCS received described data synchronization message, if preserve described user data success, with MSCS return data syn ack message, wherein synchronized result was successfully to main; If described user data is preserved failure, to the main data sync response message of returning with MSCS, the data dictionary of the user data correspondence of wherein said preservation failure is designated failure; Main with MSCS receive contain the data sync response message that data dictionary is designated failure after, to the user data retransmission data synchronization message of standby MSCS to described synchronization failure; The master sends data synchronization message with MSCS to standby MSCS and further comprises: set the main thresholding of retransmitting with MSCS, if the main thresholding that to standby MSCS the user data retransmission data synchronization message number of times of synchronization failure is surpassed described setting with MSCS, then the master is provided with a preset time with MSCS, the main user data of setting thresholding that surpasses with the no longer synchronous described retransmission data synchronization message number of times of MSCS in described preset time; For the user data of described retransmission data synchronization message number of times above described setting thresholding, standby MSCS initiatively sends user data requests information to the main MSCS that uses, and the main MSCS that uses is according to user data requests information, and the transmission data synchronization message is to standby MSCS.
In the above-mentioned method, the master comprises user signing contract information, user authentication information and positional information with MSCS to the user data that standby MSCS sends, and wherein user authentication information and positional information are optional synchrodata information.
In the above-mentioned method, further comprise: if standby MSCS is because fault is lost specific user's data, standby MSCS is initiatively to the main data dictionary sign of using MSCS solicited message, described request information to comprise specific user's data; After the master receives described request information with MSCS, send data synchronization information, wherein carry described specific user's data of losing in the data synchronization information to standby MSCS.
In the above-mentioned method, if the main transmission chain rupture of using between MSCS and the standby MSCS is main with MSCS and standby MSCS link re-establishment, link setup success back master restarts to send communication with MSCS and begins solicited message to standby MSCS.
Compared with prior art, realize the method for user data synchronization in the double attaching system of the present invention, when active and standby MSCS switches, HLR can provide stable service for the user, simultaneously, reduced the load of wireless network, avoided main and occurred unusual with MSCS or standby MSCS upgrading back data sync.
Description of drawings
Fig. 1 is a system construction drawing of realizing the double attaching system of user data synchronization function;
Fig. 2 is a main flow chart of realizing the user data synchronization function;
Fig. 3 is the process chart that active and standby MSCS data dictionary is consulted failure;
Fig. 4 is the process chart after the user data synchronization failure;
Fig. 5 is that standby MSCS is to main process chart with MSCS request user data;
Fig. 6 is the process chart of active and standby MSCS communicating interrupt and recovery.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are further described.
Fig. 1 is a system construction drawing of realizing the double attaching system of data sync function.Wherein HLR11 preserves the CAMEL-Subscription-Information of portable terminal, and preserves VLR (VLR Visitor Location Register) number of portable terminal place MSCS, portable terminal do called in, HLR obtains the roaming number of portable terminal to MSCS; Main access and calling route with the MSCS12 handle mobile terminal; MGW (media gateway) the 13rd, the media gateway under the MSCS also is simultaneously the SGW of RNC (radio network controller) to MSCS; Backup MSC S14 provides backup functionality for main with MSCS, after the master is with the MSCS fault, takes over the master and works with MSCS; RNC15 is the base station controller of wireless network; UE16 is the mobile phone users that inserts under wireless network.
Fig. 2 is the main flow chart that the present invention realizes the data sync function.Concrete steps are as follows:
201: main the master establishes a connection to standby MSCS with MSCS with after the MSCS startup, sends communication and begins solicited message to standby MSCS;
202: standby MSCS begins response message to main with the MSCS Returning communication after receiving that main communication with MSCS begins solicited message;
203: the master sends data dictionary to standby MSCS with MSCS by the data dictionary authentication message, and described data dictionary comprises the data dictionary sign of the main MSCS of using synchronizing user data;
204: standby MSCS receives described data dictionary, to the main MSCS return data dictionary confirmatory message of using;
205: the main MSCS of using sends data synchronization message to standby MSCS, and wherein data synchronization message comprises user data, and the master discerns synchronous user data with MSCS by described data dictionary sign.
206: after standby MSCS received described data synchronization information, if preserve described user data success, with the syn ack of MSCS return data, wherein the data dictionary of all user's correspondences was designated success to main; If certain customers data are preserved failure, to the main data sync of returning with MSCS reply described in the data dictionary of certain customers' correspondence be designated failure.
207: switch triggering, standby MSC becomes the master and uses state, uses above-mentioned user data to carry out Business Processing.
Fig. 3 is the active and standby process chart of consulting failure with the MSCS data dictionary.Because the version of main frame and standby host may be inconsistent, after standby MSCS receives main data dictionary with the MSCS transmission, discovery can not identify by the recognition data dictionary, return data dictionary authentication failure message, and carry standby MSCS can not the recognition data dictionary sign, require mainly to adjust accordingly with MSCS.Concrete steps are as follows:
301: after the master uses the MSCS electrifying startup, be established to the connection of standby MSCS, begin solicited message to standby MSCS communication;
302: after standby MSCS received that communication begins solicited message, Returning communication began response message;
303: the master sends data dictionary to standby MSCS with MSCS by the data dictionary authentication message, and described data dictionary comprises the data dictionary sign of the main MSCS of using synchronizing user data;
304: the version of standby MSCS and the main version of MSCS of using are inconsistent, and standby MSCS can not identify by the identification division data dictionary, and return data dictionary authentication failure message wherein comprises the unsupported dictionary content of standby MSCS in the data dictionary authentication failure message.
305: main receive data dictionary authentification failure message with MSCS after, according to return can not recognition data dictionary sign revise data dictionary after, send new data dictionary authentication message to standby MSCS.
306: standby host is accepted new data dictionary, return data dictionary acknowledgement message.
Fig. 4 is the process chart after the user data synchronization failure.The main MSCS that uses comprises a plurality of user data in a data synchronization message, standby MSCS receives these user data, if standby MSCS finds certain customers' data sync mistake, then in the middle sign of returning of replying, the master retransmits with MSCS.Concrete steps are as follows:
401: main the master establishes a connection to standby MSCS with MSCS with after the MSCS startup, sends communication and begins solicited message to standby MSCS;
402: standby MSCS begins response message to main with the MSCS Returning communication after receiving that main communication with MSCS begins solicited message;
403: the master sends data dictionary to standby MSCS with MSCS by the data dictionary authentication message, and described data dictionary comprises the data dictionary sign of the main MSCS of using synchronizing user data;
404: standby MSCS receives described data dictionary, to the main MSCS return data dictionary confirmatory message of using;
405: the main MSCS of using sends data synchronization message to standby MSCS, and wherein data synchronization message comprises user data, and the master discerns synchronous user data with MSCS by described data dictionary sign.
406: after standby MSCS received described data synchronization information, if preserve described user data success, with MSCS return data syn ack message, wherein synchronized result was successfully to main; If user data is preserved failure, then to main with mobile swap server return data syn ack message, the fail data dictionary of user's correspondence of wherein said preservation is designated failure.The data sync response message comprises the information of synchronization failure reason.
407: main with MSCS receive contain the data sync response message that data dictionary is designated failure after, to the user retransmission data synchronization message of standby MSCS to described synchronization failure.In the retransmission process, can adjust retransmitted content by the data dictionary sign of failure user correspondence.
408: set the main thresholding of retransmitting with MSCS, if the main thresholding that to standby MSCS user's retransmission data synchronizing information number of times of synchronization failure is surpassed described setting with MSCS, then the master sets the regular hour as required with MSCS, the main user data of setting thresholding that surpasses with the no longer synchronous described repeating transmission of MSCS in the time of described setting.
Fig. 5 is that standby MSCS is to main process chart with MSCS request user data.Standby MSCS causes under the situation of certain customers' loss of data, initiatively applies for user data to main with MSCS, and concrete steps are as follows:
501: the master is carrying out in the process of data sync with MSCS and standby MSCS, and standby MSCS is because reasons such as fault recovery send user data requests to the main MSCS that uses, active request requirement specific user data.
502: after the master receives described request information with MSCS, send data synchronization information, wherein carry specific user's data of losing in the data synchronization information to standby MSCS.
503: standby MSCS receives the particular data of losing, return data syn ack.
Fig. 6 is the process chart of active and standby MSCS communicating interrupt and recovery.Carry out communication between the active and standby MSCS, provisional fault takes place sometimes, after communication recovers, will authenticate again and consult between the active and standby MSCS, concrete steps are as follows:
601: the master is carrying out data sync, the link down between the active and standby MSCS with MSCS and standby MSCS;
602: rebulid link between the active and standby MSCS;
603: the link-recovery between the active and standby MSCS;
604: the master sends communication with MSCS and begins solicited message to standby MSCS;
Standby MSCS begins response message to main with the MSCS Returning communication after receiving that main communication with MSCS begins solicited message;
605: the master sends data dictionary to standby MSCS with MSCS by the data dictionary authentication message, and described data dictionary comprises the data dictionary sign of the main MSCS of using synchronizing user data; Standby MSCS receives described data dictionary, to the main MSCS return data dictionary confirmatory message of using;
606: main normal to the data sync recovery of standby MSCS with MSCS.
One of embodiments of the invention will be led with the user data synchronization on the MSCS and arrive standby MSCS, make standby MSCS after switching, and not need to carry out lot of data suddenly to HLR and recover flow process, prevent that the link of HLR from occurring congested.Switch the back user simultaneously and do directly to carry out paging when called, reduced the load of wireless side user position district.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. realize the method for user data synchronization in the double attaching system, it is characterized in that described method comprises step:
The master establishes a connection to standby mobile swap server with mobile swap server, sends communication and begins solicited message to standby mobile swap server;
Standby mobile swap server begins response message to main with mobile swap server Returning communication after receiving that main communication with mobile swap server begins solicited message;
The master sends data dictionary to standby mobile swap server with mobile swap server by the data dictionary authentication message, and described data dictionary comprises main data dictionary with mobile swap server synchronizing user data and identifies;
Standby mobile swap server receives described data dictionary authentication message, to leading with mobile swap server return data dictionary confirmatory message; And
The master sends data synchronization message with mobile swap server to standby mobile swap server, and wherein data synchronization message comprises user data, and main the sign by described data dictionary with mobile swap server discerned synchronous user data;
After standby mobile swap server was received described data synchronization message, if preserve described user data success, with mobile swap server return data syn ack message, wherein synchronized result was successfully to main; If described user data is preserved failure, to the main data sync response message of returning with mobile swap server, the data dictionary of the user data correspondence of wherein said preservation failure is designated failure.
2. realize the method for user data synchronization in a kind of double attaching system according to claim 1, it is characterized in that, after standby mobile swap server is received main data dictionary with mobile swap server transmission, discovery can not identify by the recognition data dictionary, return data dictionary authentification failure message, and carry standby mobile swap server can not the recognition data dictionary sign.
3. realize the method for user data synchronization in a kind of double attaching system according to claim 2, it is characterized in that, after the master receives data dictionary authentification failure message with mobile swap server, according to described return can not the recognition data dictionary after sign revises data dictionary, send the data dictionary authentication message to standby mobile swap server.
4. realize the method for user data synchronization in a kind of double attaching system according to claim 1, it is characterized in that, main with mobile swap server receive contain the data sync response message that data dictionary is designated failure after, to the user data retransmission data synchronization message of standby mobile swap server to described synchronization failure.
5. realize the method for user data synchronization in a kind of double attaching system according to claim 4, it is characterized in that, the master sends data synchronization message with mobile swap server to standby mobile swap server and further comprises: set the main thresholding of retransmitting with mobile swap server, if the main thresholding that to standby mobile swap server the user data retransmission data synchronization message number of times of synchronization failure is surpassed described setting with mobile swap server, then the master is provided with a preset time with mobile swap server, the main user data of setting thresholding that surpasses with the no longer synchronous described retransmission data synchronization message number of times of mobile swap server in described preset time.
6. realize the method for user data synchronization in a kind of double attaching system according to claim 5, it is characterized in that, the user data that surpasses described setting thresholding for described retransmission data synchronization message number of times, standby mobile swap server initiatively sends user data requests information and uses mobile swap server to the master, the master according to user data requests information, sends data synchronization message to standby mobile swap server with mobile swap server.
7. realize the method for user data synchronization in a kind of double attaching system according to claim 1, it is characterized in that, the master comprises user signing contract information, user authentication information and positional information with mobile swap server to the user data that standby mobile swap server sends, and wherein user authentication information and positional information are optional synchrodata information.
8. realize the method for user data synchronization in a kind of double attaching system according to claim 1, it is characterized in that, further comprise: if standby mobile swap server is because fault is lost specific user's data, with mobile swap server solicited message, described request information comprises the data dictionary sign of specific user's data to main in standby mobile swap server active; After the master receives described request information with mobile swap server, send data synchronization information, wherein carry described specific user's data of losing in the data synchronization information to standby mobile swap server.
9. realize the method for user data synchronization in a kind of double attaching system according to claim 1, it is characterized in that, if it is main with the transmission chain rupture between mobile swap server and the standby mobile swap server, main with mobile swap server and standby mobile swap server link re-establishment, link setup success back master restarts to send communication with mobile swap server and begins solicited message to standby mobile swap server.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014101510A1 (en) * | 2012-12-25 | 2014-07-03 | 腾讯科技（深圳）有限公司 | Data synchronization processing method and system |
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| US8842698B2 (en) * | 2011-10-18 | 2014-09-23 | Alcatel Lucent | NAI subscription-ID hint digit handling |
| CN102984762B (en) * | 2012-12-12 | 2016-05-25 | 中国联合网络通信集团有限公司 | IMS function assigning method and device |
| CN106557364A (en) * | 2015-09-24 | 2017-04-05 | 阿里巴巴集团控股有限公司 | A kind of method of data synchronization and system |
| CN107291726A (en) * | 2016-03-31 | 2017-10-24 | 阿里巴巴集团控股有限公司 | information checking method and system |
| CN109587192B (en) * | 2017-09-28 | 2021-09-07 | 北京国双科技有限公司 | Data synchronization method and device |
| CN108023968A (en) * | 2017-12-21 | 2018-05-11 | 东软集团股份有限公司 | A kind of session information synchronous method, device and equipment |
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