CN103108345A - Automatic identification method for redundancy configuration of service GPRS supporting node (SGSN) routing area - Google Patents
Automatic identification method for redundancy configuration of service GPRS supporting node (SGSN) routing area Download PDFInfo
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Abstract
The invention discloses an automatic identification method for redundancy configuration of a service GPRS supporting node (SGSN) routing area, and belongs to the field of mobile communication. The automatic identification method for the redundancy configuration of the SGSN routing area comprises the following steps: collecting original signaling data, analyzing collected original signaling data, judging whether redundant routing area configuration information exists in general packet radio service (GPRS) network service support node SGSN or not, and confirming a routing area listing containing redundancy configuration. Through the signaling analysis of a mobile network Gb interface, the analysis of a routing area updating process and the identification of the location information of the SGSN, a balance scored card (BSC) and random access and inquiry (RAI), the automatic identification method achieves the automatic judgment of the phenomenon of the failure of the updating of the routing area caused by the routing area redundant data existing on the SGSN, finds out the network element bureau data allocation caused by human factors in time, conducts network optimization work to be carried out, and promotes data service user perception.
Description
Technical field
The present invention relates to moving communicating field, particularly a kind of automatic identifying method of SGSN Route Area redundant configuration.
Background technology
Along with mobile network's fast development, the continuous expansion of userbase and the continuous release of new application, the customer service model in network also constantly changes thereupon.In order to adapt to this variation, operator needs constantly network to be carried out cutover and adjusts the configuration of network element office data.At present main by network operation engineer manual operation OMC(operation maintenance center to cutover adjustment, the configuration of network element office data of network element) system carries out, this some network element office data configuration errors that cause due to human factor of the artificial inevasible existence of mode of operation, these mistakes are difficult for being found, and can bring potential problem to network, cause user awareness to descend.Therefore need a kind of method can to the cutover adjustment afterwards the network element office data problem of artificial configuration modification in time find and verify.
Have now the cutover adjustment of network element and the maintenance of network element office data are mainly manually completed by the service engineer.For example with Route Area A from the SGSN01 cutover to SGSN02, need the service engineer in the Route Area configuration data of SGSN01, Route Area A to be deleted, increase simultaneously Route Area B in the Route Area configuration data of SGSN02, and need simultaneously wireless side and core-network side jointly to adjust network element configuration information, routing iinformation etc.After all operations is completed, the mode generation business under Route Area A that will test by active, whether the business of seeing can normally be used, if can normally use complete the cutover adjustment.
Prior art only considers whether new network element configuration enters into force after the cutover adjustment, namely whether the network element corresponding relation at Route Area A and SGSN02 forms, whether the user can normally use business on Route Area A and SGSN02, but whether old configuration information is thoroughly deleted, be that Route Area A does not have the phenomenon in the Route Area configuration of SGSN01 often to lack concern, and can only verify by the mode of hand inspection data configuration, easily cause configuration hidden danger.If Route Area A is existence domain SGSN01 and SGSN02 simultaneously, although the user can normally use business by Route Area A and SGSN02, but due to the redundant configuration data that exist on SGSN01, may cause the user when switching to SGSN01 from SGSN02, SGSN01 thinks that this is the Routing Area Update of an Intra RAU(SGSN inside), thus causing that the user surfs the Net goes offline or by network detach.
Summary of the invention
For the defective that exists in prior art, the purpose of this invention is to provide a kind of automatic identifying method of SGSN Route Area redundant configuration, be used for realizing the automatic identification of SGSN Route Area redundant configuration.
For reaching above purpose, the technical solution used in the present invention is:
A kind of automatic identifying method of SGSN Route Area redundant configuration comprises the following steps:
Gather original signaling data, the original signaling data that collects is resolved, judge that according to the result data of resolving whether GPRS network serving GPRS support node SGSN exists redundancy Route Area configuration information, determines to exist the route area list of redundant configuration.
The present invention is by to the signalling analysis of mobile network's Gb Interface, to the analysis of Routing Area Update flow process and to the identification of SGSN, BSC, RAI positional information, realize that automatic decision is owing to existing the Route Area redundant data to cause the phenomenon of Routing Area Update failure on SGSN, the network element office data allocation problem that in time discovery causes due to human factor, instruct network optimization work to carry out, promote the data service user awareness.
Description of drawings
The automatic identifying method flow chart of the SGSN Route Area redundant configuration that Fig. 1 provides for the embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The embodiment of the present invention is by to the signalling analysis of mobile network's Gb Interface, to the analysis of Routing Area Update flow process and to SGSN(GPRS network service support node), the BSC(base station controller), the RAI(Route Area) identification of positional information, realize that automatic decision is owing to existing the Route Area redundant data to cause the phenomenon of Routing Area Update failure on SGSN, the network element office data allocation problem that in time discovery causes due to human factor, instruct network optimization work to carry out, promote the data service user awareness.
As shown in Figure 1, the present embodiment provides a kind of automatic identifying method of SGSN Route Area redundant configuration, comprising:
Step 101, gather original signaling data.The original signaling of Gb/IuPS, gn interface to the GPRS/TD network gathers, and gathers not interrupt the existing network business, does not also increase the load of existing network equipment, guarantees the Cybersecurity Operation state.Acquisition mode can be selected the CE(core switch) mirror image, TAP(shunt) three kinds of shuntings, optical splitter light splitting.
Step 102, the original signaling data that collects is resolved.according to the mobile network communication principle, if configured same Route Area A under SGSN01 and SGSN02, when the user switches under SGSN02 (the Routing Area Update flow process between SGSN) when Inter RAU occurs from SGSN01, because SGSN02 can find Route Area A in local RAI list, therefore can mistakenly user's RAU request type be judged as the Routing Area Update flow process of Intra RAU(SGSN inside), and search this user's contextual information in this locality, but because user's contextual information is at SGSN01, therefore thereby SGSN02 can be because can't find the RAU request of user's contextual information refusing user's, causing the user to surf the Net goes offline, by network detach.Therefore, can judge whether SGSN exists redundancy Route Area configuration information by resolving the RAU flow process:
1, Gb/IuPS interface route district's renewal refuse information is resolved.To Gb/IuPS interface message GMM(GPRS Network Mobility management) layer type of message be 0x11 and Cause Code(cause value) value is that 10 signaling (RAU refusal-former because implicit detach) is resolved, and obtains user's IMSI(international mobile subscriber identity) sign (intercepting the BSSGP(GPRS network base station subsystem agreement of this message) layer two byte of 0d88 the 1st ~ 8 byte backward) and the TLLI(TLLI) identify (intercepting the 2nd to ~ 5 byte of this message BSSGP sublayer).
2, Gb/IuPS interface route district's update inquiry information parsing.The signaling (RAU request) that Gb/IuPS interface message GMM layer type of message is 0x09 is resolved, obtain user's TLLI sign (intercepting the 2nd to ~ 5 byte of this message BSSGP sublayer) (obtain respectively the TLLI sign in two message, be for will be two message relatings), source routing district sign (GMM floor 08 byte the 2nd ~ 7 byte backward), target Routing Area Identifier (0,888 two byte of BSSGP floor the 1st ~ 6 byte backward), the SGSN IP address of target Route Area last 4 bytes of sublayer (IP).If the TLLI that parsing obtains with the renewal refuse information is identical for the parsing of Routing Area Update request message, carry out update request and upgrade the related of refusal, thereby know specifically when which Route Area is initiated the Routing Area Update request, the RAU refusal mistake of implicit detach has occured, and this conclusion is used for follow-up Problem judgment.
3, gn interface SGSN updating context request message is resolved.To gn interface GTP(bearer network layer) layer type of message be that 50 signaling (SGSN updating context) is resolved, and obtains user's IMSI sign (obtaining respectively the IMSI sign is for different messages is associated).
4, the Attach(that initiates from the source routing district of Gb/IuPS interface adheres to), PDP(activates) request message resolves.Being signaling (Attach request) and the SM(session management of 0x01 to Gb/IuPS interface message GMM layer type of message) layer type of message be that the signaling (PDP activation request) of 0x42 is resolved, and obtains the SGSN IP address last 4 bytes of sublayer (IP) in source routing district.
Step 103, whether there is redundancy Route Area configuration information by the analysis judgment SGSN to the RAU flow process.
1, the user has occured former because the RAU of implicit detach refusal mistake.
2, identify by IMSI that (two IMSI sign of obtaining previously is identical, here use any one association) Gb/IuPS, gn interface signaling are carried out association, do not find that at gn interface target SGSN initiates this user's updating context request (illustrate that SGSN thinks Intra SGSN, namely the source routing district is configured on target SGSN).
3, resolve the SGSN IP address of asking corresponding source routing district from Attach or the PDP of source routing district's initiation, if the SGSN IP address that parses during the 2nd step and the 4th from the signaling resolving of step 102 goes on foot is inconsistent, the business of not carrying the source routing district on target SGSN is described, but but configured the source routing district, namely the type of current RAU is actual should be to be carried on another SGSN for the business in Inter RAU(source routing district).
There is redundancy in the Route Area configuration that can be judged as due to SGSN of satisfying first three condition, thereby has caused user RAU failure.
Step 104, determine to exist the route area list of redundant configuration.When the RAU request of initiating from a Route Area has occured former because the RAU of implicit detach refusal mistake, if SGSN does not initiate user's updating context request in this Routing Area Update flow process, and when the SGSN IP in the Attach that initiates from this Route Area and the PDP corresponding source routing of request district and the corresponding SGSN IP of this RAU request belong to different SGSN, think that there is redundancy in the upper Route Area configuration of the SGSN that processes current RAU request.Exist the route area list of redundant configuration as shown in table 1:
Table 1
| Route Area ID | Ownership SGSNA | Ownership SGSNB | The SGSN of bearer service | RAU number of Inter |
| 460-00-13084-1 | SGSN04 | SGSN06 | SGSN04 | 100 |
Wherein, Route Area ID is for being configured in respectively the Routing Area Identifier of 2 or 2 above SGSN, which SGSN ownership SGSNA and ownership SGSNB are configured in respectively for this Route Area of judging by analysis, the SGSN of bearer service is the SGSN of this Route Area business of actual bearer, and RAU number of Inter is take this Route Area RAU number of Inter as source routing district's initiation.
Prior art need to find to operate due to network elements such as cutovers by mode manually the problem of the network element data configuring redundancy that causes, and the present embodiment can be pinpointed the problems automatically by the association analysis of signaling, improve operating efficiency, avoided human factor and the appearance of the relevant issues that cause.
Method of the present invention is not limited to the embodiment described in embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to equally technological innovation scope of the present invention.
Claims (9)
1. the recognition methods of a SGSN Route Area redundant configuration, is characterized in that, comprises the following steps:
Gather original signaling data, the original signaling data that collects is resolved, judge that according to the result data of resolving whether GPRS network serving GPRS support node SGSN exists redundancy Route Area configuration information, determines to exist the route area list of redundant configuration.
2. the recognition methods of SGSN Route Area redundant configuration according to claim 1, it is characterized in that, the method of the original signaling data of described collection specifically comprises: the Gb/IuPS of GPRS and TD network and the original signaling of gn interface are gathered, and acquisition method is core switch mirror image, shunt shunting or optical splitter light splitting.
3. the recognition methods of SGSN Route Area redundant configuration according to claim 1 and 2, is characterized in that, the described method that the original signaling data that collects is resolved specifically comprises:
Resolve Gb/IuPS interface route district and upgrade refuse information, Gb/IuPS interface route district update inquiry information, gn interface SGSN updating context request message and Gb/IuPS interface initiates from the source routing district adhering to Attach and activating the PDP request message.
4. the recognition methods of SGSN Route Area redundant configuration according to claim 3, is characterized in that, the method for described parsing Gb/IuPS interface route district's renewal refuse information specifically comprises:
Be that 0x11 and cause value are that 10 signaling is resolved to Gb/IuPS interface message GPRS network mobile management GMM layer type of message, intercepting GPRS network base station sub-system two bytes of agreement BSSGP layer 0d88 the 1st to 8 byte backward obtained user's international mobile subscriber identity IMSI sign, and the 2nd to 5 byte that intercepts this message BSSGP layer obtained user's TLLI TLLI.
5. the recognition methods of SGSN Route Area redundant configuration according to claim 4, is characterized in that, the method for described parsing Gb/IuPS interface route district update inquiry information specifically comprises:
The signaling that Gb/IuPS interface message GMM layer type of message is 0x09 is resolved, the the 2nd to 5 byte of intercepting BSSGP layer obtained user's TLLI sign, intercepting GMM floor 08 byte the 2nd to 7 byte backward obtained source routing district sign, intercepting 0,888 two byte of BSSGP layer the 1st to 6 byte backward obtained the target Routing Area Identifier, the SGSN IP address that last 4 bytes of intercepting IP sublayer are obtained the target Route Area;
If the TLLI that parsing obtains with the renewal refuse information is identical in described Routing Area Update request message parsing, carry out update request and upgrade the related of refusal, thereby know specifically when which Route Area is initiated the Routing Area Update request, the routing area updating RAU refusal mistake of implicit detach has occured.
6. the recognition methods of SGSN Route Area redundant configuration according to claim 5, is characterized in that, the method for described parsing gn interface SGSN updating context request message specifically comprises:
Be that 50 signaling is resolved to gn interface bearer network layer GTP type of message, obtain user's IMSI sign.
7. the recognition methods of SGSN Route Area redundant configuration according to claim 6, is characterized in that, described parsing Gb/IuPS interface specifically comprises from the method for adhering to Attach and activation PDP request message of source routing district's initiation:
Be that the signaling of 0x01 and signaling that session management SM layer type of message is 0x42 are resolved to Gb/IuPS interface message GMM layer type of message, the SGSN IP address that last 4 bytes of intercepting IP sublayer are obtained the source routing district.
8. the recognition methods of SGSN Route Area redundant configuration according to claim 7, is characterized in that, whether the described SGSN of judgement exists the method for redundancy Route Area configuration information specifically to comprise:
The RAU refusal mistake of implicit detach has occured in the user;
Identify by IMSI and Gb/IuPS interface and gn interface signaling are carried out related, do not find that at gn interface target SGSN initiates this user's updating context request;
The SGSN IP address of the SGSN IP address in described parsing obtains source routing district and target Route Area is inconsistent;
Satisfy simultaneously above three conditions, judge that there is redundancy Route Area configuration information in SGSN.
9. the recognition methods of SGSN Route Area redundant configuration according to claim 8, is characterized in that, describedly determines to exist the method for the route area list of redundant configuration specifically to comprise:
When the RAU request of initiating from a Route Area has occured former because the RAU of implicit detach refusal mistake, if SGSN does not initiate user's updating context request in this Routing Area Update flow process, and when the SGSN IP address in the Attach that initiates from this Route Area and the PDP corresponding source routing of request district and this RAU corresponding SGSN IP of request address belong to different SGSN, determine that there is redundancy in the upper Route Area configuration of SGSN of processing current RAU request.
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| CN106413030A (en) * | 2015-08-03 | 2017-02-15 | 北京国双科技有限公司 | Route area update (RAU) index information acquisition method and device |
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| CN1852539A (en) * | 2005-11-15 | 2006-10-25 | 华为技术有限公司 | Method for obtaining information in signaling flow |
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| US20060028992A1 (en) * | 2004-08-09 | 2006-02-09 | Per Kangru | Method and apparatus to distribute signaling data for parallel analysis |
| CN1852539A (en) * | 2005-11-15 | 2006-10-25 | 华为技术有限公司 | Method for obtaining information in signaling flow |
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| CN106413030A (en) * | 2015-08-03 | 2017-02-15 | 北京国双科技有限公司 | Route area update (RAU) index information acquisition method and device |
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