CN102098666B - Number refilling method applied to 2G (second generation) network and communication monitoring system - Google Patents
Number refilling method applied to 2G (second generation) network and communication monitoring system Download PDFInfo
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Abstract
The invention provides a number refilling method applied to a 2G (second generation)_network and a communication monitoring system. The number refilling method comprises the following steps: monitoring a UE (user equipment) location updating process on an interface A, and acquiring the initial TMSI (temporary mobile subscriber identity), initial location area code, effective TMSI and effective location area code of the UE; judging whether a mapping relation between the IMSI (international mobile subscriber identity) and TMSI of the UE is stored according to the initial TMSI and the initial location area code, if the mapping relation is stored, substituting the effective TMSI and the effective location area code for the TMSI and effective location area code in the mapping relation; if the mapping relation is not stored, judging whether a signalling in the location updating process carries the IMSI of the UE, if the signalling carries the IMSI of the UE, generating the mapping relation between the IMSI and the TMSI and storing the mapping relation; and monitoring a service process on the interface A, judging whether the signalling in the service process carries the IMSI of the UE, if the signalling does not carry the IMSI of the UE, inquiring the mapping relation between the IMSI and TMSI of the UE according to the effective TMSI and effective location area code of the UE which are carried in the signalling of the service process to determine the IMSI of the UE. According to the invention, the real identity of the UE can be determined only by monitoring the service process which carries the TMSI of the UE on the interface A.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of number earth-filling method and communication monitoring system of the 2G of being applied to network.
Background technology
In mobile communication system, each moves UE (User Equipment) is by unique IMSI (Intemational Mobile Subscriber Identity, international mobile subscriber identity) identify, in order to guarantee the fail safe of user profile, in normal service communication, conventionally adopt TMSI (TemporaryMobile Subscriber Identity, temporary mobile subscriber identity) to replace IMSI to carry out identifying user.TMSI is temporary mark, in the different time, can distribute to different users, and the TMSI that same user is assigned with in different time or different places is also often different.
A interface refers to BSC (Base Station Controller, base station controller) and MSC (MobileSwitching Center, mobile switching centre) interface between, operation flow on A interface is monitored, can obtain positional information, business information of user etc., and then can provide value added service according to those information.
Owing to only carrying the TMSI of UE in the signaling of some operation flow, do not carry the IMSI of UE, therefore when those operation flows are carried out to detecting/monitoring, only can monitor user's TMSI, mobile UE and TMSI do not have unique mapping relations, thereby cannot know according to the TMSI monitoring the true identity of UE.
Summary of the invention
In view of this, the invention provides a kind of number earth-filling method and communication monitoring system of the 2G of being applied to network, when some operation flow of only carrying TMSI on A interface is monitored, also can determine the true identity of UE.
For addressing the above problem, the invention provides a kind of number earth-filling method of the 2G of being applied to network, comprising: storing step and query steps; Wherein, described storing step comprises: monitor the position update flow of the UE on A interface, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database; Described query steps comprises: monitor the default operation flow of the described UE on described A interface, judge the IMSI that whether carries described UE in the signaling of described default operation flow; While not carrying the IMSI of described UE in the signaling of described default operation flow, according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, inquire about the mapping relations of IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE.
Preferably, described position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
Preferably, after described storing step, also comprise delete step, described delete step comprises: monitor the shutdown process of the described UE on described A interface, obtain TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
The present invention also provides a kind of communication monitoring system, comprise: memory module, for monitoring the position update flow of the UE on A interface, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database; Enquiry module, for monitoring the default operation flow of the described UE on described A interface, judges the IMSI that whether carries described UE in the signaling of described default operation flow; While not carrying the IMSI of described UE in the signaling of described default operation flow, according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, inquire about the mapping relations of IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE.
Preferably, described position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
Preferably, described communication monitoring system also comprises: removing module, for monitoring the shutdown process of the described UE on described A interface, obtains TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
The present invention has following beneficial effect: the mapping relations of safeguarding IMSI and the TMSI of UE, when some operation flow of the TMSI that only carries UE on A interface is monitored, can, according to the IMSI of UE and the mapping relations of TMSI safeguarded, determine the true identity of UE.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of number earth-filling method of the present invention;
Fig. 2 is the schematic flow sheet of UE of the present invention Signalling exchange on A interface while being attached to network;
Fig. 3 is the schematic flow sheet that UE of the present invention carries out normal position Signalling exchange on A interface while upgrading;
The schematic flow sheet of Signalling exchange when Fig. 4 is UE shutdown of the present invention on A interface.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
The invention provides a kind of number earth-filling method of the 2G of being applied to network, described number earth-filling method comprises storing step and query steps;
Wherein, as shown in Figure 1, described storing step comprises again:
Step 101: monitor the position update flow of the UE on A interface, obtain initial TMSI, initial position district code (LAC, Location AreaCode), effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; Wherein, A interface refers to BSC under described UE and the interface between MSC;
Step 102: according to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, execution step 103; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, execution step 104;
Step 103: adopt TMSI and Location Area Code in effective TMSI of described UE and mapping relations that active position district code is replaced described UE;
Step 104: judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, execution step 105; Otherwise, finish;
Step 105: according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database;
Above-mentioned position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
Described query steps comprises again:
Step 106: monitor the default operation flow of the described UE on described A interface, judge the IMSI that whether carries described UE in the signaling of described default operation flow; While not carrying the IMSI of described UE in the signaling of described default operation flow, execution step 107; Otherwise, finish;
Step 107: according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, the mapping relations of inquiring about IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE.
In the present invention, above-mentioned query steps is called again to number backfill step.
By means of said method, when UE carries out position renewal, safeguard the mapping relations of IMSI and the TMSI of UE, when the default operation flow of the TMSI that only carries UE on A interface is monitored, can, according to the IMSI of UE and the mapping relations of TMSI safeguarded, determine the true identity of UE.
Below in conjunction with the attachment flow of UE, above-mentioned storing step is elaborated.
The schematic flow sheet of the Signalling exchange when being illustrated in figure 2 UE and being attached to network on A interface, mainly comprises the following steps:
BSC under step 201:UE sends position updating request (Location UpdateRequest) to MSC, sets up SCCP (Skinny Call Control Protocol, Internal call control protocol) simultaneously and connects; In described position updating request, carry initial TMSI and the initial position district code of described UE, so-called initial TMSI and initial position district code refer to that described UE does not carry out before the renewal of position, the TMSI of storage inside and Location Area Code;
Step 202:MSC receives after position updating request, sends to call out control (CallControl, CC) message to BSC, determines that setting up SCCP connects;
Step 203:MSC sends class mark request (Classmark Request) to BSC, for asking the parameters such as power, cryptographic algorithm of UE;
Step 204:MSC sends authentication request (Aut hentication Request) to BSC;
Step 205:BSC sends class mark to MSC and upgrades (Classmark update);
Step 206:BSC sends authentication responses (Authentication Response) to MSC;
Step 207:MSC sends identity information request (Identity Request) to BSC; To UE request IMSI;
Step 208:BSC sends identity information to MSC and replys (Identity Response); Described identity information carries the IMSI of described UE in replying;
Step 209:MSC sends position renewal to BSC and replys (Location Update Accept), described position carries effective TMSI and the active position district code of described UE in upgrading and replying, so-called effectively TMSI and active position district code refer to that network side is the sign of the lane place at the newly assigned TMSI of described UE and the current place of described UE;
Step 210:BSC sends TMSI to MSC and has reallocated (TMSI ReallocationComplete), determines the effective TMSI and the active position district code that receive described UE;
Step 211:MSC sends clear command (Clear Command) to BSC;
Step 212:BSC sends and has removed (Clear Complete) to MSC;
Step 213:MSC sends RLSD to BSC;
Step 214:BSC sends RLC (radio link control) to MSC.
Wherein, in the attachment flow of above-mentioned UE, signaling between BSC and MSC is referred to as the signaling of position update flow, in the present invention, be that the signaling of described position update flow is monitored, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt TMSI and Location Area Code in effective TMSI of described UE and mapping relations that active position district code is replaced described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database.
Concrete, the IMSI of described UE and the mapping relations of TMSI can adopt in the form preservation and database of form, as shown in table 1:
Table 1
| IMSI | TMSI | Location Area Code | |
| UE1 | IMSI(1) | TMSI(1) | Lane place (1) |
| UE2 | IMSI(2) | TMSI(2) | Lane place (1) |
| UE3 | IMSI(3) | TMSI(3) | Lane place (2) |
The position of UE is upgraded and is also comprised: normal position is upgraded and periodic location update, and wherein, normal position is upgraded and referred to when UE changes lane place, to MSC reported position; When periodic location update refers to UE idle condition timer expiry, within a period of time, there are not switching on and shutting down, movement, calling or note etc., for preventing that MSC is by the overtime deletion of this UE, and the periodic report position of carrying out.
Below in conjunction with the normal position of UE new technological process more, above-mentioned storing step is elaborated.
Be illustrated in figure 3 the schematic flow sheet that UE carries out normal position Signalling exchange on A interface while upgrading, mainly comprise the following steps:
BSC under step 301:UE sends position updating request (Location UpdateRequest) to MSC, sets up SCCP (Skinny Call Control Protocol, Internal call control protocol) simultaneously and connects; In described position updating request, carry initial TMSI and the initial position district code of described UE.
Step 302:MSC receives after position updating request, sends to call out control (CallControl, CC) message to BSC, determines that setting up SCCP connects;
Step 303:MSC sends class mark request (Classmark Request) to BSC, for asking the parameters such as power, cryptographic algorithm of UE;
Step 304:BSC sends class mark to MSC and upgrades (Classmark update);
Step 305:MSC sends identity information request (Identity Request) to BSC; MSC can be according to the initial position district code of the described UE carrying in the position updating request in step 301, judge that the lane place at the current place of described UE and the initial position district of described UE are whether under same switch, if the lane place at the current place of described UE and the initial position district of described UE are under same switch, in this step, MSC does not ask IMSI to described UE, if the lane place at the current place of described UE and the initial position district of described UE be not under same switch, in this step, MSC can be to described UE request IMSI;
Step 306:BSC sends identity information to MSC and replys (Identity Response); If MSC has asked IMSI to described UE, described identity information carries the IMSI of described UE in replying, if MSC does not ask IMSI to described UE, described identity information does not carry the IMSI of described UE in replying.
Step 307:MSC sends authentication request (Aut hentication Request) to BSC;
Step 308:BSC sends authentication responses (Authentication Response) to MSC;
Step 309:MSC sends position renewal to BSC and replys (Location Update Accept); Described position carries effective TMSI and the active position district code of described UE in upgrading and replying;
Step 310:BSC sends TMSI to MSC and has reallocated (TMSI ReallocationComplete), determines the effective TMSI and the active position district code that receive described UE;
Step 311:MSC sends clear command (Clear Command) to BSC;
Step 312:BSC sends and has removed (Clear Complete) to MSC;
Step 313:MSC sends RLSD to BSC;
Step 314:BSC sends RLC to MSC.
Wherein, the normal position of above-mentioned UE is more in new technological process, signaling between BSC and MSC is referred to as the signaling of position update flow, in the present invention, be that the signaling of described position update flow is monitored, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database.
The mapping relations of take in above-mentioned table 1 are example, suppose that UE1 normal position occurs and upgrades, network side is that the new TMSI that UE1 distributes is TMSI (4) (being effective TMSI), UE1 moves to position district (3) from lane place (1), wherein, lane place (3) and lane place (1) are under same switch, now, adopt TMSI (4) and lane place (3) updating form 1, obtain the mapping relations in table 2.
Table 2
| IMSI | TMSI | Location Area Code | |
| UE1 | IMSI(1) | TMSI(4) | Lane place (3) |
| UE2 | IMSI(2) | TMSI(2) | Lane place (1) |
| UE3 | IMSI(3) | TMSI(3) | Lane place (2) |
In above-described embodiment for UE carries out normal position while upgrading, the step of updating of the IMSI of UE and the mapping relations of TMSI, when introducing UE below and carrying out periodic location update, the step of updating of the IMSI of UE and the mapping relations of TMSI.
The flow process consistent (referring to Fig. 2) of the Signalling exchange when flow process of Signalling exchange when UE carries out periodic location update on A interface is attached to network with UE on A interface, no longer describes in detail at this.
Wherein, in the periodic location update flow process of UE, signaling between BSC and MSC is referred to as the signaling of position update flow, in the present invention, be that the signaling of described position update flow is monitored, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database.
The mapping relations of take in above-mentioned table 2 are example, suppose the renewal of UE2 generating period position, network side is that the new TMSI that UE2 distributes is TMSI (5), the lane place at UE2 place does not change, the initial position district Ma He active position district code that is UE2 is identical, now, adopt the TMSI (2) in TMSI (5) substitution list 1, obtain the mapping relations in table 3.
Table 3
| IMSI | TMSI | Location Area Code | |
| UE1 | IMSI(1) | TMSI(4) | Lane place (3) |
| UE2 | IMSI(2) | TMSI(5) | Lane place (1) |
| UE3 | IMSI(3) | TMSI(3) | Lane place (2) |
In the present invention, when UE shuts down, need the IMSI of described UE and the mapping relations of TMSI of in delete database, storing.That is, after above-mentioned storing step, also comprise delete step, described delete step specifically comprises: monitor the shutdown process of the described UE on described A interface, obtain TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
Below in conjunction with the shutdown process of UE, above-mentioned delete step is elaborated.
The schematic flow sheet of the Signalling exchange while being illustrated in figure 4 UE shutdown on A interface, mainly comprises the following steps:
BSC under step 401:UE sends the separated indication of IMSI (IMSI DetachIndication) to MSC, carries TMSI and the Location Area Code of described UE in described IMSI separation command;
Step 402:MSC receives after the separated indication of IMSI, sends to call out control (CC) message to BSC;
Step 403:MSC sends clear command (Clear Command) to BSC;
Step 404:BSC sends and has removed (Clear Complete) to MSC;
Step 405:MSC sends RLSD to BSC;
Step 406:BSC sends RLC to MSC.
Wherein, in the shutdown process of above-mentioned UE, the signaling between BSC and MSC is referred to as the signaling of described shutdown process, in the present invention, be that the signaling of described shutdown process is monitored, obtain TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
The mapping relations of take in above-mentioned table 3 are example, suppose UE3 shutdown, now, delete the mapping relations of IMSI and the TMSI of the described UE3 storing in described database, obtain the mapping relations in table 4.
Table 4
| IMSI | TMSI | Location Area Code | |
| UE1 | IMSI(1) | TMSI(4) | Lane place (3) |
| UE2 | IMSI(2) | TMSI(5) | Lane place (1) |
The present invention also provides a kind of communication monitoring system, and for carrying out the number earth-filling method of above-described embodiment, described communication monitoring system comprises:
Memory module, for monitoring the position update flow of the UE on A interface, obtains initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database;
Enquiry module, for monitoring the default operation flow of the described UE on described A interface, judges the IMSI that whether carries described UE in the signaling of described default operation flow; While not carrying the IMSI of described UE in the signaling of described default operation flow, according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, inquire about the mapping relations of IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE.
Described position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
In the present invention, when UE shuts down, need the IMSI of described UE and the mapping relations of TMSI of in delete database, storing.That is, above-mentioned communication monitoring system also comprises: removing module, for monitoring the shutdown process of the described UE on described A interface, obtains TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
By means of said system, can safeguard the mapping relations of IMSI and the TMSI of UE, when the default operation flow of only carrying TMSI on A interface is monitored, can, according to the IMSI of UE and the mapping relations of TMSI safeguarded, determine the true identity of UE.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a number earth-filling method that is applied to 2G network, is characterized in that, comprises storing step and query steps;
Wherein, described storing step comprises:
Monitor the position update flow of the UE on A interface, obtain initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow;
According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database;
While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE;
In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow;
While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database;
Described query steps comprises:
Monitor the default operation flow of the described UE on described A interface, judge the IMSI that whether carries described UE in the signaling of described default operation flow;
While not carrying the IMSI of described UE in the signaling of described default operation flow, according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, inquire about the mapping relations of IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE;
After described storing step, also comprise delete step, described delete step comprises:
Monitor the shutdown process of the described UE on described A interface, obtain TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process;
According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
2. the number earth-filling method that is applied to 2G network as claimed in claim 1, is characterized in that, described position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
3. a communication monitoring system, is characterized in that, comprising:
Memory module, for monitoring the position update flow of the UE on A interface, obtains initial TMSI, initial position district code, effective TMSI and the active position district code of the described UE carrying in the signaling of described position update flow; According to the initial TMSI of described UE and initial position district code, judge the mapping relations that whether store IMSI and the TMSI of described UE in described database; While having stored the IMSI of described UE and the mapping relations of TMSI in described database, adopt described effective TMSI and active position district code to replace TMSI and the Location Area Code in the mapping relations of described UE; In described database, do not store the mapping relations of IMSI and the TMSI of described UE, judge the IMSI that whether carries described UE in the signaling of described position update flow; While carrying the IMSI of described UE in the signaling of described position update flow, according to the IMSI of described UE, effective TMSI and active position district code, generate the mapping relations of IMSI and the TMSI of described UE, and described mapping relations are stored in described database;
Enquiry module, for monitoring the default operation flow of the described UE on described A interface, judges the IMSI that whether carries described UE in the signaling of described default operation flow; While not carrying the IMSI of described UE in the signaling of described default operation flow, according to effective TMSI of the described UE carrying in the signaling of described default operation flow and active position district code, inquire about the mapping relations of IMSI and the TMSI of the described UE storing in described database, determine the IMSI of described UE;
Removing module, for monitoring the shutdown process of the described UE on described A interface, obtains TMSI and the Location Area Code of the described UE carrying in the signaling of described shutdown process; According to the TMSI of the described UE carrying in the signaling of described shutdown process and Location Area Code, inquire about the IMSI of the described UE storing in described database and the mapping relations of TMSI and delete.
4. communication monitoring system as claimed in claim 3, is characterized in that, described position update flow is: the attachment flow of described UE, the normal position of described UE be the periodic location update flow process of new technological process or described UE more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110041589.6A CN102098666B (en) | 2011-02-21 | 2011-02-21 | Number refilling method applied to 2G (second generation) network and communication monitoring system |
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| CN103067944A (en) * | 2013-02-04 | 2013-04-24 | 成都林海电子有限责任公司 | Legal monitoring system for mobile communication network |
| CN103428686B (en) * | 2013-08-09 | 2016-11-23 | 中国移动通信集团四川有限公司宜宾分公司 | Based on Subscriber Number earth-filling method and the number backfill server of dialling calling in net mutually |
| CN109005514B (en) * | 2018-08-15 | 2020-01-21 | 宜通世纪科技股份有限公司 | Backfill method and device of user position information, terminal equipment and storage medium |
| CN112040536B (en) * | 2020-09-10 | 2022-09-13 | 中国联合网络通信集团有限公司 | Identification method and device for 2G function closing user and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1909719A (en) * | 2005-08-01 | 2007-02-07 | 中兴通讯股份有限公司 | Method for positioning of mobile user cell |
| CN101453784A (en) * | 2007-12-05 | 2009-06-10 | 中兴通讯股份有限公司 | Mobile terminal positioning method and apparatus for UMTS |
| CN101969659A (en) * | 2010-09-21 | 2011-02-09 | 北京邮电大学 | Method and system for tracking subscriber event |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909719A (en) * | 2005-08-01 | 2007-02-07 | 中兴通讯股份有限公司 | Method for positioning of mobile user cell |
| CN101453784A (en) * | 2007-12-05 | 2009-06-10 | 中兴通讯股份有限公司 | Mobile terminal positioning method and apparatus for UMTS |
| CN101969659A (en) * | 2010-09-21 | 2011-02-09 | 北京邮电大学 | Method and system for tracking subscriber event |
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