CN103108345B - The automatic identifying method of a kind of SGSN Route Area redundant configuration - Google Patents
The automatic identifying method of a kind of SGSN Route Area redundant configuration Download PDFInfo
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- CN103108345B CN103108345B CN201310020566.6A CN201310020566A CN103108345B CN 103108345 B CN103108345 B CN 103108345B CN 201310020566 A CN201310020566 A CN 201310020566A CN 103108345 B CN103108345 B CN 103108345B
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Abstract
The invention discloses the automatic identifying method of a kind of SGSN Route Area redundant configuration, belong to moving communicating field, comprise the following steps: gather original signaling data, the original signaling data collected is resolved, result data according to resolving judges whether GPRS network serving GPRS support node SGSN exists redundancy Route Area configuration information, determines the route area list that there is redundant configuration.The present invention is by the signalling analysis to mobile network's Gb Interface, the analysis to Routing Area Update flow process and the identification to SGSN, BSC, RAI positional information, realize automatic decision causes Routing Area Update failure phenomenon owing to SGSN existing Route Area redundant data, the network element office data allocation problem that Timeliness coverage causes due to human factor, instruct network optimization to carry out, promote data service customers perception.
Description
Technical field
The present invention relates to moving communicating field, particularly the automatic identifying method of a kind of SGSN Route Area redundant configuration.
Background technology
Along with the continuous release of the fast development of mobile network, the continuous expansion of userbase and new application, the customer service model in network also constantly changes thereupon.In order to adapt to this change, operator needs constantly to carry out cutover to network and adjusts the configuration of network element office data.At present to the cutover adjustment of network element, the configuration of network element office data mainly through network operation engineer manual operation OMC(operation maintenance center) system carries out, some network element office data configuration errors caused due to human factor of the inevasible existence of this artificial mode of operation, these mistakes are not easily found, and potential problem can be brought to network, cause user awareness to decline.Therefore a kind of method is needed can to carry out Timeliness coverage and checking to the network element office data problem of configuration modification artificial after cutover adjustment.
Existing the cutover adjustment of network element and the maintenance of network element office data manually to be completed mainly through service engineer.Such as by Route Area A from SGSN01 cutover to SGSN02, service engineer is needed to be deleted by Route Area A in the Route Area configuration data of SGSN01, in the Route Area configuration data of SGSN02, increase Route Area B simultaneously, and need wireless side and core-network side jointly to adjust network element configuration information, routing iinformation etc. simultaneously.After all operations completes, the mode by active testing is generated business under the A of Route Area, see whether business can normally use, if can normally use, complete cutover adjustment.
Prior art only considers whether new network element configuration enters into force after cutover adjustment, namely whether formed at the network element corresponding relation of Route Area A and SGSN02, whether user normally can use business on A and SGSN02 of Route Area, but to old configuration information whether complete deletion, namely the phenomenon of Route Area A not in the configuration of the Route Area of SGSN01 often lacks concern, and can only be verified 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 user normally can use business by Route Area A and SGSN02, but due to the redundant configuration data existed on SGSN01, user may be caused when being switched to SGSN01 from SGSN02, SGSN01 thinks that this is the Routing Area Update of an Intra RAU(SGSN inside), thus cause user to surf the Net to go offline or by network detach.
Summary of the invention
For the defect existed in prior art, the object of this invention is to provide the automatic identifying method of a kind of SGSN Route Area redundant configuration, for realizing the automatic identification of SGSN Route Area redundant configuration.
For reaching above object, the technical solution used in the present invention is:
An automatic identifying method for SGSN Route Area redundant configuration, comprises the following steps:
Gather original signaling data, resolve the original signaling data collected, the result data according to resolving judges whether GPRS network serving GPRS support node SGSN exists redundancy Route Area configuration information, determines the route area list that there is redundant configuration.
The present invention is by the signalling analysis to mobile network's Gb Interface, the analysis to Routing Area Update flow process and the identification to SGSN, BSC, RAI positional information, realize automatic decision causes Routing Area Update failure phenomenon owing to SGSN existing Route Area redundant data, the network element office data allocation problem that Timeliness coverage causes due to human factor, instruct network optimization to carry out, promote data service customers perception.
Accompanying drawing explanation
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
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The embodiment of the present invention by the signalling analysis to mobile network's Gb Interface, the analysis to Routing Area Update flow process and to SGSN(GPRS network service support node), BSC(base station controller), RAI(Route Area) identification of positional information, realize automatic decision causes Routing Area Update failure phenomenon owing to SGSN existing Route Area redundant data, the network element office data allocation problem that Timeliness coverage causes due to human factor, instruct network optimization to carry out, promote data service customers perception.
As shown in Figure 1, present embodiments provide the automatic identifying method of a kind of SGSN Route Area redundant configuration, comprising:
Step 101, gather original signaling data.The Gb/IuPS of GPRS/TD network, the original signaling of gn interface are gathered, gathers and do not interrupt existing network business, also do not increase the load of existing network equipment, ensure Cybersecurity Operation state.Acquisition mode can select CE(core switch) mirror image, TAP(shunt) shunting, optical splitter light splitting three kinds.
Step 102, the original signaling data collected to be resolved.According to mobile network communication principle, if be configured with same Route Area A under SGSN01 and SGSN02, when user from SGSN01 be switched to there is Inter RAU SGSN02 time (the Routing Area Update flow process between SGSN), because SGSN02 can find Route Area A in local RAI list, therefore mistakenly the RAU request type of user can be judged as the Routing Area Update flow process of Intra RAU(SGSN inside), and the contextual information of this user is searched in this locality, but the contextual information due to user is at SGSN01, therefore SGSN02 can because cannot find the contextual information of user thus the RAU request of refusal user, cause user to surf the Net to go offline, by network detach.Therefore, can judge whether SGSN exists redundancy Route Area configuration information by resolving RAU flow process:
1, Gb/IuPS interface route district upgrades refuse information parsing.To the management of Gb/IuPS interface message GMM(GPRS Network Mobility) layer type of message be 0x11 and Cause Code(cause value) value be 10 signaling (RAU refusal-reason is implicit detach) resolve, obtain the IMSI(international mobile subscriber identity of user) mark (intercepting the BSSGP(GPRS networks base station subsystem agreement of this message) layer 0,d88 two bytes 1st ~ 8 bytes backward) and TLLI(TLLI) identify (intercepting the 2nd to ~ 5 bytes of this message BSSGP sublayer).
2, Gb/IuPS interface route district update request message parse.The signaling (RAU request) that Gb/IuPS interface message GMM layer type of message is 0x09 is resolved, obtain the SGSN IP address (last 4 bytes of IP sublayer) of TLLI mark (intercepting the 2nd to ~ 5 bytes of this message BSSGP sublayer) (obtain TLLI mark in two message respectively, be in order to will two message relatings) of user, source routing district mark (GMM floor 08 byte 2nd ~ 7 bytes backward), target Routing Area Identifier (BSSGP floor 0,888 two byte 1st ~ 6 bytes backward), target Route Area.If Routing Area Update request message is resolved and is upgraded refuse information to resolve the TLLI obtained identical, then carry out update request and upgrade associating of refusal, thus know specifically when which Route Area initiates Routing Area Update request, the RAU that there occurs implicit detach refuses mistake, 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 network layers) layer type of message be 50 signaling (SGSN updating context) resolve, obtain IMSI mark (respectively obtain IMSI mark is in order to different messages is associated) of user.
4, Gb/IuPS interface initiate from source routing district Attach(attachment), PDP(activate) request message resolve.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 IP sublayer) in source routing district.
Step 103, by whether there is redundancy Route Area configuration information to the analysis judgment SGSN of RAU flow process.
1, user there occurs the RAU refusal mistake that reason is implicit detach.
2, by IMSI mark, (two the IMSI marks obtained above are identical, here associate with any one) Gb/IuPS, gn interface signaling are associated, do not find that target SGSN initiates the updating context request (illustrate that SGSN thinks Intra SGSN, namely source routing district is configured in target SGSN) of this user at gn interface.
3, the SGSN IP address in the source routing district corresponding to Attach or PDP request initiated from source routing district is resolved, if the SGSN IP address parsed from the 2nd step the signaling resolution process of step 102 and the 4th step is inconsistent, business target SGSN not carrying source routing district is described, but be but configured with source routing district, namely the type of current RAU is actual should be carried on another SGSN for the business in Inter RAU(source routing district).
What meet first three condition can be judged as that the Route Area configuration due to SGSN exists redundancy, thus result in user RAU failure.
Step 104, determine the route area list that there is redundant configuration.When the RAU request initiated from a Route Area there occurs the RAU refusal mistake that reason is implicit detach, if SGSN does not initiate the updating context request of user in this Routing Area Update flow process, and the SGSN IP in the source routing district corresponding to Attach and PDP request initiated from this Route Area and this RAU ask corresponding to SGSN IP when belonging to different SGSN, then think that the upper Route Area of SGSN of process current RAU request configures and there is redundancy.The route area list that there is redundant configuration is as shown in table 1:
Table 1
| Route Area ID | Ownership SGSNA | Ownership SGSNB | The SGSN of bearer service | Inter RAU number |
| 460-00-13084-1 | SGSN04 | SGSN06 | SGSN04 | 100 |
Wherein, Route Area ID is the Routing Area Identifier being configured in more than 2 or 2 SGSN respectively, which SGSN ownership SGSNA and ownership SGSNB is configured in respectively by analyzing this Route Area judged, the SGSN of bearer service is the SGSN of this Route Area business of actual bearer, and Inter RAU number is Inter RAU the number of initiating for source routing district with this Route Area.
Prior art needs to find because the network elements such as cutover operate the problem of the network element data configuring redundancy caused by mode manually, and the present embodiment can be pinpointed the problems automatically by the association analysis of signaling, improve operating efficiency, avoid human factor and the appearance of the relevant issues caused.
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 and other execution mode belongs to technological innovation scope of the present invention equally.
Claims (7)
1. a recognition methods for SGSN Route Area redundant configuration, is characterized in that, comprises the following steps:
Gather original signaling data, resolve the original signaling data collected, the result data according to resolving judges whether GPRS network serving GPRS support node SGSN exists redundancy Route Area configuration information, determines the route area list that there is redundant configuration; Wherein, judge that the method whether SGSN exists redundancy Route Area configuration information specifically comprises:
The RAU that user there occurs implicit detach refuses mistake;
By IMSI mark, Gb/IuPS interface is associated with gn interface signaling, do not find that target SGSN initiates the updating context request of this user at gn interface;
The SGSN IP address in the source routing district that described parsing obtains and the SGSN IP address of target Route Area inconsistent;
Meet above three conditions simultaneously, then judge that SGSN exists redundancy Route Area configuration information;
Determine that the method for the route area list that there is redundant configuration specifically comprises:
When the RAU request initiated from a Route Area there occurs the RAU refusal mistake that reason is implicit detach, if SGSN does not initiate the updating context request of user in this Routing Area Update flow process, and the SGSN IP address in the source routing district corresponding to Attach and PDP request initiated from this Route Area and this RAU ask corresponding to SGSN IP address attribution when different SGSN, then determine to process the upper Route Area of SGSN that current RAU asks and configure and there is redundancy.
2. the recognition methods of SGSN Route Area according to claim 1 redundant configuration, it is characterized in that, the method of the original signaling data of described collection specifically comprises: gather the Gb/IuPS of GPRS and TD network and the original signaling of gn interface, and acquisition method is core switch mirror image, shunt shunting or optical splitter light splitting.
3. the recognition methods of SGSN Route Area according to claim 1 and 2 redundant configuration, is characterized in that, describedly specifically comprises the method that the original signaling data collected is resolved:
The attachment Attach that the renewal of parsing Gb/IuPS interface route district refuse information, Gb/IuPS interface route district update request message, gn interface SGSN updating context request message and Gb/IuPS interface are initiated from source routing district and activation PDP request message.
4. the recognition methods of SGSN Route Area according to claim 3 redundant configuration, is characterized in that, the method that described parsing Gb/IuPS interface route district upgrades refuse information specifically comprises:
Gb/IuPS interface message GPRS network mobile management GMM layer type of message is 0x11 and the signaling that cause value is 10 is resolved, the international mobile subscriber identity IMSI intercepting GPRS network base station sub-system agreement BSSGP layer 0d 88 two bytes the 1 to 8 byte acquisition user backward identifies, and the 2 to 5 byte intercepting this message BSSGP layer obtains the TLLI TLLI of user.
5. the recognition methods of SGSN Route Area according to claim 4 redundant configuration, is characterized in that, the method for described parsing Gb/IuPS interface route district update request message specifically comprises:
The signaling that Gb/IuPS interface message GMM layer type of message is 0x09 is resolved, the 2 to 5 byte intercepting BSSGP layer obtains the TLLI mark of user, intercept GMM floor 08 byte the 2 to 7 byte backward and obtain source routing district mark, intercept BSSGP layer 0,888 two byte the 1 to 6 byte backward and obtain target Routing Area Identifier, last 4 bytes intercepting IP sublayer obtain the SGSN IP address of target Route Area;
If described Routing Area Update request message is resolved and is upgraded refuse information to resolve the TLLI obtained identical, then carry out update request and upgrade associating of refusal, thus know specifically when which Route Area initiates Routing Area Update request, there occurs the routing area updating RAU refusal mistake of implicit detach.
6. the recognition methods of SGSN Route Area according to claim 5 redundant configuration, is characterized in that, the method for described parsing gn interface SGSN updating context request message specifically comprises:
The signaling that gn interface bearer network network layers GTP type of message is 50 is resolved, obtains the IMSI mark of user.
7. the recognition methods of SGSN Route Area according to claim 6 redundant configuration, is characterized in that, the attachment Attach that described parsing Gb/IuPS interface is initiated from source routing district and the method activating PDP request message specifically comprise:
Resolve the signaling of Gb/IuPS interface message GMM layer type of message to be the signaling of 0x01 and session management SM layer type of message be 0x42, last 4 bytes intercepting IP sublayer obtain the SGSN IP address in source routing district.
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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 |
| CN102076030A (en) * | 2009-11-23 | 2011-05-25 | 中国移动通信集团福建有限公司 | Method and device for acquiring system switching parameter information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN102076030A (en) * | 2009-11-23 | 2011-05-25 | 中国移动通信集团福建有限公司 | Method and device for acquiring system switching parameter information |
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