CN105228207A - A kind of method and device of verifying LTE network circuit domain dropping CSFB functional configuration - Google Patents
A kind of method and device of verifying LTE network circuit domain dropping CSFB functional configuration Download PDFInfo
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Abstract
The invention provides a kind of method and device of verifying LTE network circuit domain dropping CSFB functional configuration, relate to the communications field, solve the problem to the pattern verification existing defects of LTE network CSFB functional configuration in prior art.The method of this verification LTE network circuit domain dropping CSFB functional configuration comprises: extract signaling data relevant to CSFB business in LTE network; Judge whether there is default signaling data in described signaling data; When there is described default signaling data, judge that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.The solution of the present invention is more reasonable to the verification of LTE network CSFB functional configuration, achieves efficient network management.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method verifying LTE network circuit domain dropping CSFB functional configuration.
Background technology
Circuit domain dropping CSFB (CSFallBack), be that the standard long-term evolution technology LTE of third generation partner program 3GPP solves voice scheme, when namely user exists voice demand, mobile phone falls back to 2G or 3G to be conversed.In the process fallen after rise, the system message of target 2G or 3G adjacent area is carried in the radio resource control Connection Release RRCConnectionRelease message that LTE base station issues, after terminal receives described system message, follow-up speech business is carried out in 2G or the 3G adjacent area being registered in described LTE base station fast, completes voice call.In order to realize the CSFB function of LTE network, first, Mobility Management Entity MME must configure 2, the Location Area Code LAC data of 3G, support terminal completes associating attachment; Secondly, evolved wireless base station ENodeB must open CSFB functional switch, to support to fall function after rise; 3rd, ENodeB needs the adjacent area of configuration of 2 G or 3G, and adjacent area can not be omitted; 4th, the LAC of the adjacent area after falling is as far as possible consistent with the Tracking Area Code TAC before falling.
At present LTE network CSFB functional configuration is verified and generally to be configured compared with planning table by derived grid in network management system, and in conjunction with the mode of site inspection and drive test.But check with programme according to existing network configuration, can not find that the configuration in programme is omitted; And site inspection and drive test can not complete covering User Activity scopes, larger to manpower and materials consumption.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and device of verifying LTE network circuit domain dropping CSFB functional configuration, solves the pattern verification existing defects to LTE network CSFB functional configuration in prior art, and the problem that manpower and materials consumption is larger.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of method verifying LTE network circuit domain dropping CSFB functional configuration, comprising:
Extract signaling data relevant to CSFB business in LTE network;
Judge whether there is default signaling data in described signaling data;
When there is described default signaling data, judge that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
Wherein, judge that the step that whether there is default signaling data in described signaling data comprises:
Judge whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
When there is described default signaling data, whether qualified step comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
Wherein, judge that the step that whether there is default signaling data in described signaling data also comprises:
Judge whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
Judge whether there is the 3rd signaling data in described signaling data, described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described second signaling data or described 3rd signaling data, judge that ENodeBCSFB functional switch is abnormal.
Wherein, judge that the step that whether there is default signaling data in described signaling data also comprises:
Judge in described signaling data, whether to there is the 4th signaling data, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described 4th signaling data, judge ENodeB misses 2,3G neighbor cell configuration.
Wherein, judge that the step that whether there is default signaling data in described signaling data also comprises:
Judge whether there is the 5th signaling data in described signaling data, described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described 5th signaling data, judge that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
For solving the problems of the technologies described above, embodiments of the invention also provide a kind of device of verifying LTE network circuit domain dropping CSFB functional configuration, comprising:
Extraction module, for extracting signaling data relevant to CSFB business in LTE network;
Judge module, for judging whether there is default signaling data in described signaling data;
Determination module, for when there is described default signaling data, judges that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
Wherein, described judge module comprises:
First judges submodule, for judging whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
Described determination module comprises:
First decision sub-module, for when there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
Wherein, described judge module also comprises:
Second judges submodule, for judging whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
3rd judges submodule, the 3rd signaling data whether is there is in described signaling data for judging, described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
Described determination module also comprises:
Second decision sub-module, for when there is described second signaling data or described 3rd signaling data, judges that ENodeBCSFB functional switch is abnormal.
Wherein, described judge module also comprises:
4th judges submodule, the 4th signaling data whether is there is in described signaling data for judging, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
Described determination module also comprises:
3rd decision sub-module, for when there is described 4th signaling data, judges ENodeB misses 2,3G neighbor cell configuration.
Wherein, described judge module also comprises:
5th judges submodule, whether there is the 5th signaling data for judging in described signaling data, and described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
Described determination module also comprises:
4th decision sub-module, for when there is described 5th signaling data, judges that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
The beneficial effect of technique scheme of the present invention is as follows:
The method of the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, first extracts signaling data relevant to CSFB business in LTE network; Then judging whether there is default signaling data in signaling data, when there is default signaling data, judging that whether the LTE network CSFB functional configuration that this default signaling data is corresponding is qualified.By analyzing the signaling data of CSFB business, achieve the automatic inspection of CSFB functional configuration in LTE network, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the present invention verifies LTE network circuit domain dropping CSFB functional configuration;
Fig. 2 is the structural representation that the present invention verifies the device of LTE network circuit domain dropping CSFB functional configuration.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The method of the LTE network circuit domain dropping CSFB functional configuration that the embodiment of the present invention is verified, achieves the automatic inspection of CSFB functional configuration in LTE network, and pattern verification is more reasonable, and has saved manpower and materials, achieves the efficient network optimization and management.
As shown in Figure 1, the method for the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, comprising:
Step 11, extracts signaling data relevant to CSFB business in LTE network;
Step 12, judges whether there is default signaling data in described signaling data;
Step 13, when there is described default signaling data, judges that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
The method of the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, first extracts signaling data relevant to CSFB business in LTE network; Then judging whether there is default signaling data in signaling data, when there is default signaling data, judging that whether the LTE network CSFB functional configuration that this default signaling data is corresponding is qualified.By analyzing the signaling data of CSFB business, achieve the automatic inspection of CSFB functional configuration in LTE network, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
Wherein, in above-mentioned steps 11, when extracting signaling data, after light splitting and mirror image, first can be carried out the collection of data by acquisition card special or Ethernet card; Then in the data gathered, extract key message according to distinct interface operation flow, make each operation flow form a data record, for subsequent step provides Data support.
Wherein, in order to realize the verification of the LAC information of reporting of user on MME, the step of above-mentioned steps 12 can comprise:
Step 121, judges whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
The step of above-mentioned steps 13 can comprise:
Step 131, when there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
Now, achieve the automatic inspection of the LAC information of reporting of user on MME, pattern verification is more reasonable, and has saved manpower and materials.
In order to realize the verification of CSFB functional switch on ENodeB, the step of above-mentioned steps 12 can also comprise:
Step 122, judge whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
Step 123, judges whether there is the 3rd signaling data in described signaling data, and described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
The step of above-mentioned steps 13 can also comprise:
Step 132, when there is described second signaling data or described 3rd signaling data, judges that ENodeBCSFB functional switch is abnormal.
Now, combine in attachment or co-location renewal process user, if have indicating downlink network attached storage to transmit DownlinkNASTransport denial of service servicereject message in signaling data, and EMM cause value is second signaling data of 11PLMNnotallowed; Or there is instruction in signaling data after MME transmission InitialContextSetup message is to EnodeB, EnodeB has replied initalcontextsetupfailure message and has been the 3rd signaling data of 111om-intervention with EMM cause value, just can judge that ENodeBCSFB functional switch is abnormal.Achieve the automatic inspection of CSFB functional switch on ENodeB in LTE network, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
In addition, if user is under LTE network, initiate caller request or received called request, now MME can loopback customer equipment context amendment request UEContextModificationRequest message fall after rise to 2/3G network to ENodeB indicating user, wherein carries CSFBIndicator and represents that this time falling reason after rise is CSFB.According to negotiation result, the rear loopback customer equipment context of MME dismounting RRC connection has discharged UEContextReleaseComplete message and has represented that connection is removed complete, the flow process normal termination so far on LTE.On this basis, check the follow-up flow process of user, have following three kinds of situations:
1. caller: after falling after rise, user sends connection management service request CMServiceRequest message, comprises CSFB indication field in this message: customer service rollback calling CSMO, represents that this is the 2/3G caller after LTE falls after rise.
2. called: user response page response PagingResponse after falling after rise, carry out follow-up business flow process.
3. location updating: user's first launch position renewal after falling after rise, carries CSMO or customer service rollback mobile termination CSMT and indicates in position updating request LocationUpdatingRequest message.
If when above-mentioned 1 and 3, CSFB instruction does not all occur can think it is that non-LTE falls after rise, the calling initiated after being registered in 2/3G network by gravity treatment after namely LTE user falls failure after rise, does not carry CSFB instruction.Can according to LTE community and the call statistics not carrying CSFB instruction falling community after rise, judge this LTE community whether leak joined 2, the data of 3G adjacent area.
Therefore, in order to realize 2 of ENodeB, the verification of 3G neighbor cell configuration, the step of above-mentioned steps 12 can also comprise:
Step 124, judge in described signaling data, whether to there is the 4th signaling data, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
The step of above-mentioned steps 13 can also comprise:
Step 133, when there is described 4th signaling data, judges ENodeB misses 2,3G neighbor cell configuration.
Now, if there is instruction in signaling data in Client-initiated caller request or position updating request, LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the 4th signaling data of the first pre-determined threshold, just can judge ENodeB misses 2,3G neighbor cell configuration.Achieve to ENodeB 2, the automatic inspection of 3G neighbor cell configuration, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
Concrete, described first pre-determined threshold is 100%.
Further, in order to realize the LAC of the adjacent area after falling after rise and the conforming verification of TAC before falling after rise, the step of above-mentioned steps 12 can also comprise:
Step 125, judges whether there is the 5th signaling data in described signaling data, and described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
The step of above-mentioned steps 13 can also comprise:
Step 134, when there is described 5th signaling data, judges that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
Now, in falling process, S1 interface is normally taken out stitches, and successfully fall back to 2, under 3G, but first launch position update request after falling after rise, then carry out caller or called flow.Extract the 4G community of calling, if the number of calls having instruction launch position to upgrade in signaling data accounts for five signaling data of ratio higher than the second pre-determined threshold of described total number of calls, then the Tracking Area Code TAC before judging the LAC of the adjacent area after falling after rise and falling after rise is inconsistent.Achieve the LAC of the adjacent area after falling and the conforming automatic inspection of TAC before falling after rise, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
Concrete, described second pre-determined threshold is 50%.
The method of the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, achieves the automatic inspection of CSFB functional configuration in LTE network, and pattern verification is more reasonable, and has saved manpower and materials, achieves the efficient network optimization and management.
As shown in Figure 2, embodiments of the invention additionally provide a kind of device of verifying LTE network circuit domain dropping CSFB functional configuration, comprising:
Extraction module, for extracting signaling data relevant to CSFB business in LTE network;
Judge module, for judging whether there is default signaling data in described signaling data;
Determination module, for when there is described default signaling data, judges that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
The device of the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, achieves the automatic inspection of CSFB functional configuration in LTE network, and pattern verification is more reasonable, and has saved manpower and materials, achieves the efficient network optimization and management.
In specific embodiments of the invention, described judge module can comprise:
First judges submodule, for judging whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
Described determination module comprises:
First decision sub-module, for when there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
Now, achieve the automatic inspection of the LAC information of reporting of user on MME, pattern verification is more reasonable, and has saved manpower and materials.
In order to realize the verification of CSFB functional switch on ENodeB, described judge module can also comprise:
Second judges submodule, for judging whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
3rd judges submodule, the 3rd signaling data whether is there is in described signaling data for judging, described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
Described determination module can also comprise:
Second decision sub-module, for when there is described second signaling data or described 3rd signaling data, judges that ENodeBCSFB functional switch is abnormal.
Now, achieve the automatic inspection of CSFB functional switch on ENodeB in LTE network, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
In order to realize 2 of ENodeB, the verification of 3G neighbor cell configuration, described judge module can also comprise:
4th judges submodule, the 4th signaling data whether is there is in described signaling data for judging, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
Described determination module can also comprise:
3rd decision sub-module, for when there is described 4th signaling data, judges ENodeB misses 2,3G neighbor cell configuration.
Now, achieve 2 of ENodeB, the automatic inspection of 3G neighbor cell configuration, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
Further, in order to realize the LAC of the adjacent area after falling after rise and the conforming verification of TAC before falling after rise, described judge module can also comprise:
5th judges submodule, whether there is the 5th signaling data for judging in described signaling data, and described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
Described determination module can also comprise:
4th decision sub-module, for when there is described 5th signaling data, judges that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
Now, achieve the LAC of the adjacent area after falling and the conforming automatic inspection of TAC before falling after rise, pattern verification is more reasonable, and has saved manpower and materials, achieves efficient network management and optimization.
The device of the verification LTE network circuit domain dropping CSFB functional configuration of the embodiment of the present invention, achieves the automatic inspection of CSFB functional configuration in LTE network, and pattern verification is more reasonable, and has saved manpower and materials, achieves the efficient network optimization and management.
It should be noted that, the device of this verification LTE network circuit domain dropping CSFB functional configuration is the device corresponding with the method for above-mentioned verification LTE network circuit domain dropping CSFB functional configuration, wherein in said method embodiment, all implementations are all applicable in the embodiment of this device, also can reach same technique effect.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. verify a method for LTE network circuit domain dropping CSFB functional configuration, it is characterized in that, comprising:
Extract signaling data relevant to CSFB business in LTE network;
Judge whether there is default signaling data in described signaling data;
When there is described default signaling data, judge that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
2. method according to claim 1, is characterized in that, judges that the step that whether there is default signaling data in described signaling data comprises:
Judge whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
When there is described default signaling data, whether qualified step comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
3. method according to claim 1, is characterized in that, judges that the step that whether there is default signaling data in described signaling data also comprises:
Judge whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
Judge whether there is the 3rd signaling data in described signaling data, described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described second signaling data or described 3rd signaling data, judge that ENodeBCSFB functional switch is abnormal.
4. method according to claim 1, is characterized in that, judges that the step that whether there is default signaling data in described signaling data also comprises:
Judge in described signaling data, whether to there is the 4th signaling data, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described 4th signaling data, judge ENodeB misses 2,3G neighbor cell configuration.
5. method according to claim 1, is characterized in that, judges that the step that whether there is default signaling data in described signaling data also comprises:
Judge whether there is the 5th signaling data in described signaling data, described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
When there is described default signaling data, whether qualified step also comprises to judge LTE network CSFB functional configuration that described default signaling data is corresponding:
When there is described 5th signaling data, judge that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
6. verify a device for LTE network circuit domain dropping CSFB functional configuration, it is characterized in that, comprising:
Extraction module, for extracting signaling data relevant to CSFB business in LTE network;
Judge module, for judging whether there is default signaling data in described signaling data;
Determination module, for when there is described default signaling data, judges that whether the LTE network CSFB functional configuration that described default signaling data is corresponding is qualified.
7. device according to claim 6, is characterized in that, described judge module comprises:
First judges submodule, for judging whether there is the first signaling data in described signaling data, described first signaling data be used to indicate user combine attachment or co-location renewal process in mobile switching centre unreachable; And
Described determination module comprises:
First decision sub-module, for when there is described first signaling data, be extracted in described mobile switching centre unreachable time the LAC information of reporting of user and the MME at user place, and the MME judging described user place misses the LAC information of described reporting of user.
8. device according to claim 6, is characterized in that, described judge module also comprises:
Second judges submodule, for judging whether there is the second signaling data in described signaling data, described second signaling data is used to indicate combines attachment or denial of service is transmitted in attached storages of co-location renewal process downlink network user, and the reason of denial of service is PLMN does not allow; And
3rd judges submodule, the 3rd signaling data whether is there is in described signaling data for judging, described 3rd signaling data is used to indicate combines EnodeB initial environment setup failed in attachment or co-location renewal process user, and failure cause is recovery intervention; And
Described determination module also comprises:
Second decision sub-module, for when there is described second signaling data or described 3rd signaling data, judges that ENodeBCSFB functional switch is abnormal.
9. device according to claim 6, is characterized in that, described judge module also comprises:
4th judges submodule, the 4th signaling data whether is there is in described signaling data for judging, described 4th signaling data to be used to indicate after falling in Client-initiated caller request or position updating request, to LTE community and fall community after rise the number of calls ratio not carrying CSFB instruction higher than the first pre-determined threshold; And
Described determination module also comprises:
3rd decision sub-module, for when there is described 4th signaling data, judges ENodeB misses 2,3G neighbor cell configuration.
10. device according to claim 6, is characterized in that, described judge module also comprises:
5th judges submodule, whether there is the 5th signaling data for judging in described signaling data, and described 5th signaling data is used to indicate after CSFB business successfully falls after rise, and the number of calls ratio that launch position upgrades is higher than the second pre-determined threshold; And
Described determination module also comprises:
4th decision sub-module, for when there is described 5th signaling data, judges that the adjacent area LAC after falling after rise and the TAC before falling after rise is inconsistent.
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