CN100539489C - A kind of monitor method of group service in group domain - Google Patents
A kind of monitor method of group service in group domain Download PDFInfo
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- CN100539489C CN100539489C CNB031408516A CN03140851A CN100539489C CN 100539489 C CN100539489 C CN 100539489C CN B031408516 A CNB031408516 A CN B031408516A CN 03140851 A CN03140851 A CN 03140851A CN 100539489 C CN100539489 C CN 100539489C
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Abstract
The invention discloses a kind of monitor method of group service in group domain, it is characterized in that, this method may further comprise the steps: A) monitoring system is according to targeted customer's customer identification number, obtain the service MSC ID that the targeted customer inserts alternately with HLR, monitoring system sends targeted customer's setup message to the MSC that the targeted customer inserts; The MSC that the targeted customer inserts returns the PDSN address to monitoring system; B) the PDSN address returned of the MSC that inserts according to the targeted customer of monitoring system, judge whether the targeted customer has inserted packet domain, if, then the service PDSN that inserts of monitoring system and targeted customer sets up monitoring service and is connected, monitoring system monitoring service stream, otherwise, monitoring system is waited for, insert packet domain until the targeted customer, the service MSC that the targeted customer inserts sends to the service PDSN that the targeted customer inserts with monitoring information, the service PDSN that the targeted customer inserts sets up monitoring service with monitoring system and is connected, monitoring system monitoring service stream.
Description
Technical field
The present invention relates to the safe practice field of mobile communication, specifically, relate to a kind of monitor method of Packet Service.
Background technology
Along with the demand and the development of mobile pocket data business, provide demand also extremely urgent with Lawful Interception function.For using increasingly extensive code division multiple access (CDMA) system, need to formulate legal monitoring interface specification equally.
Referring to shown in Figure 1, in existing C DMA system, targeted customer (MS) carries out communication by base station controller (BSC), BSC and group data service node (PDSN, Packet Data ServingNode) communicates, C interface is the interface between attaching position register (HLR) and the mobile switching centre (MSC), and the A interface is the interface between BSC and the MSC, and the A10/A11 interface is the interface between BSC and the PDSN.
Monitoring system comprises listening center (LEA) and Lawful Interception access function (LIAF) entity, listening center carries out the Collection and analysis of snoop results, insert the LIAF entity by the HI interface, LIAF comprises the functional entity ADMF (Administrative Function) that control in the monitoring system, management are monitored, receive the functional entity DF2 (Delivery Function) of professional dependent event and distribution, receive three functional entitys of functional entity DF3 of business tine and distribution.The Xd interface is the interface between monitoring system and the PDSN.The Xa interface is the interface between monitoring system and the MSC.
Though had the network configuration of monitoring about cdma system at present, specific embodiment does not propose.
Summary of the invention
The method that the object of the present invention is to provide a kind of Packet Service to monitor is to realize the monitoring of monitoring system to targeted customer's Packet Service.
The present invention is a kind of monitor method of group service in group domain, it is characterized in that, this method may further comprise the steps:
A) monitoring system obtains the service MSC ID that the targeted customer inserts according to targeted customer's customer identification number alternately with HLR, and monitoring system sends targeted customer's setup message to the MSC that the targeted customer inserts; The MSC that the targeted customer inserts returns the PDSN address to monitoring system;
B) the PDSN address returned of the MSC that inserts according to the targeted customer of monitoring system, judge whether the targeted customer has inserted packet domain, if, then the service PDSN that inserts of monitoring system and targeted customer sets up monitoring service and is connected, monitoring system monitoring service stream, otherwise, monitoring system is waited for, insert packet domain until the targeted customer, the service MSC that the targeted customer inserts sends to the service PDSN that the targeted customer inserts with monitoring information, the service PDSN that the targeted customer inserts sets up monitoring service with monitoring system and is connected, monitoring system monitoring service stream.
Before the steps A, this method further comprises: BSC is for the PDSN of this data service selection access of targeted customer, with the service MSC of this PDSN reporting address to targeted customer's access.
Wherein, steps A comprises:
Steps A 01: monitoring system sends targeted customer's setup message to HLR, carries targeted customer's customer identification number in this message;
After steps A 02:HLR receives targeted customer's setup message, customer identification number according to targeted customer entrained in the message, obtain the MSC ID of targeted customer's access service MSC, HLR returns the targeted customer to monitoring system and sets response message, and this targeted customer sets response message and carries MSC ID;
Steps A 03: monitoring system is according to MSC ID, and the service MSC that inserts to the targeted customer sends targeted customer's setup message, carries targeted customer's customer identification number in this message;
Steps A 04: after the service MSC that the targeted customer inserts receives targeted customer's setup message, according to the customer identification number that carries the targeted customer in the message, search the PDSN number that whether has this targeted customer to insert, if have, then return the targeted customer who comprises this PDSN number and set response message to monitoring system, otherwise, return the targeted customer who comprises invalid PDSN number to monitoring system and set response message.
Wherein, the PDSN address that the MSC that monitoring system described in the step B inserts according to the targeted customer returns, judge whether the targeted customer has inserted packet domain and comprised:
If the PDSN address of returning is effective PDSN address, then the targeted customer has inserted packet domain, if the PDSN address of returning is invalid PDSN address, then the targeted customer does not insert packet domain.
Wherein, the service PDSN that inserts of targeted customer described in the step B and monitoring system are set up monitoring service and are connected and comprise:
The service PDSN that the user inserts sends to monitoring system and professional the connection sets up message, and monitoring system receives that the service PDSN of this message rear line access returns professional the connection and sets up response message.
The service PDSN that monitoring system described in the step B and targeted customer insert sets up monitoring service and is connected and comprises:
Monitoring system sends interception request message to the service PDSN that the targeted customer inserts, and the service PDSN that the targeted customer inserts returns the interception request response message to monitoring system;
The service PDSN that the targeted customer inserts initiates the monitoring service connection to monitoring system and sets up request message, and the service PDSN answer monitoring service that monitoring system inserts to the targeted customer connects sets up request-reply message.
Wherein, the service MSC of the access of targeted customer described in the step B comprises the service PDSN that monitoring information sends to targeted customer's access:
Targeted customer's request msg business, the service MSC that the targeted customer inserts will comprise that by assignment request the monitoring set information of interception type, monitoring system address, port numbers, monitor sign sends to BSC; BSC sends to PCF with monitoring information in A9-setup-A8 message, PCF sends to monitoring information by A11-Registration-Request message the service PDSN of the current access of targeted customer again; Wherein, A interface assignment request message form, A9-setup-A8 message format and A11-Registration-Request message format are and carried out the message format revised, make the monitoring information that can comprise interception type, monitoring system address, port numbers, monitor sign in these message.
Wherein, described targeted customer's request msg business is that the targeted customer is switched in same MSC interior span PDSN dormancy.
Wherein, described targeted customer's request msg business be the targeted customer at same MSC interior span PDSN direct-cut operation, described assignment request is a handoff request, the message format of described handoff request is amended form.
Wherein, switch if the targeted customer strides MSC, this method further comprises:
HLR sends the handover event reporting message to monitoring system, carries the target MSC ID after the switching in this message; Then, monitoring system sends targeted customer's setup message to the target MSC after switching, and MSC returns targeted customer's setting to monitoring system and replys; With, monitoring system source MSC is sent the targeted customer and cancel message, source MSC receives that returning the targeted customer to monitoring system after this message cancels response message.
Wherein, the step that described monitoring system and HLR obtain the service MSC ID of targeted customer's access alternately comprises: if after HLR receives targeted customer's setup message of monitoring system transmission, the targeted customer is just start subsequently, then HLR returns the targeted customer to monitoring system and sets response message, described targeted customer sets response message and shows that this targeted customer does not start shooting, monitoring system is received this response message, does not do action on interface; When the user started shooting access service MSC, HLR reported life event to monitoring system, and with going up the MSC ID that the targeted customer inserts.
Wherein, if targeted customer's shutdown, this method further comprises: HLR reports targeted customer's life event that shuts down to monitoring system, after monitoring system is received this reporting events, service MSC transmission targeted customer to the targeted customer cancels message, and this MSC returns the targeted customer to monitoring system and cancels response message.
Wherein, described customer identification number is the international mobile subscriber identifier, perhaps is mobile digital number, or Electronic Serial Number.
Wherein, the stream of the monitoring service between monitoring system and the PDSN is with the form transmission of generic route encapsulation (GRE).
As seen, the present invention has following beneficial effect:
(1) therefore the PDSN that inserted of localizing objects user has exactly solved the mobile big problem of targeted customer;
(2) begun Packet Service for the targeted customer, just begun situation about monitoring midway, the present invention can locate effective PDSN rapidly and monitor;
(3) for targeted customer's request msg business subsequently, the present invention sends to PDSN with monitoring information in A11-Registration-Request, guaranteed that like this PDSN is with after monitoring system is set up good the connection, just have the Packet Service bag by PDSN, therefore guaranteed that the monitoring content does not have omission;
(4) the present invention can solve the problem of monitoring or monitoring or monitor according to MDN according to ESN according to IMSI.
Description of drawings
Fig. 1 monitors the networking schematic diagram for packet domain.
Fig. 2 is for monitoring the flow chart of implementation procedure midway.
Fig. 3 is the flow chart of the implementation procedure monitored in advance.
Fig. 4 is the flow chart in the monitoring implementation procedure of targeted customer when same MSC interior span PDSN carries out the dormancy switching.
The flow chart of the monitoring implementation procedure that Fig. 5 is the targeted customer when same MSC interior span PDSN direct-cut operation.
The flow chart of the monitoring implementation procedure when Fig. 6 strides the MSC switching for the targeted customer.
Fig. 7 is for after HLR receives interception request, the flow chart of the monitoring implementation procedure the when targeted customer starts shooting.
The flow chart of the monitoring implementation procedure when Fig. 8 shuts down for the targeted customer.
Embodiment
The present invention is according to the targeted customer's who is monitored customer identification number, international mobile subscriber identifier (IMSI) for example, perhaps, mobile digital number (MDN, Mobile Digital Number) or Electronic Serial Number (ESN, Electronic Serial Number) etc., by obtaining the MSC at targeted customer place alternately with HLR, monitoring system and this MSC are mutual then.By this MSC, the monitoring service between monitoring system foundation and the current access of the targeted customer PDSN.
Consider in the process of monitoring, targeted customer's access network has various states and situation, below describe when monitoring, when monitoring in advance respectively midway, when the targeted customer is switched a MSC interior span PDSN dormancy, the targeted customer when same MSC interior span PDSN direct-cut operation, the targeted customer stride MSC when switching, HLR receive listen requirement after targeted customer when starting shooting subsequently, the monitoring implementation procedure the when targeted customer shuts down.
Below according to IMSI to be example explanation intercept target user's in packet domain implementation procedure.
1, the implementation procedure of midway monitoring:
Monitor midway and be meant that monitoring system sends before the snoop command, inserted the monitoring that packet domain is carried out Packet Service by the eavesdropping target.Be PDSN when receiving interception request, the targeted customer has inserted Packet Service.Its process as shown in Figure 2.Specific as follows:
Step 20:
Professional or when carrying out dormancy and switching, BSC/ Packet Control Function entity (PCF) is selected PDSN for this data service, reports the service MSC of this PDSN IP address to user's access in appointment is finished in user's request msg; Perhaps, when the user carried out direct-cut operation, BSC/PCF had selected for this data service after the PDSN, the service MSC that reports this PDSN IP address to insert to the user in switching is finished; Wherein, the switching that refers under the data service resting state is switched in dormancy; Wherein, PCF is used for business packet control, and can be positioned on the BSC;
Wherein, the service MSC that the user inserts will keep the PDSN address of this data service of user, finishes or switches to another one MSC until this data service;
Step 21:
Monitoring system sends this targeted customer's setup message according to targeted customer's to be monitored IMSI to HLR, notify HLR to need the intercept target user, HLR obtains the MSC ID of targeted customer's access service MSC according to targeted customer's to be monitored IMSI, HLR returns targeted customer's setting to monitoring system and replys, comprise targeted customer's state of this moment during this setting is replied, and carry the MSC ID of targeted customer's access service MSC;
Step 22:
Monitoring system is sent out targeted customer's setup message to this service MSC, this service MSC is according to the customer identification number of entrained targeted customer in the message of receiving, search the PDSN number that whether has this targeted customer to insert, if have, then return the targeted customer who comprises this PDSN number and set response message to monitoring system, otherwise, return the targeted customer who comprises invalid PDSN number to monitoring system and set response message; In the embodiment of the invention, because the targeted customer has inserted packet domain, therefore, MSC returns targeted customer's setting to monitoring system and replys, and in this is replied, carries the PDSN IP address that this service MSC inserts according to the targeted customer who obtains in the step 20;
Step 23:
The PDSN IP address that monitoring system inserts according to the targeted customer who obtains, send interception request to this PDSN, comprise targeted customer's sign, monitor sign in the interception request, comprise listening mode and monitor IP address and the port numbers of listen requirement, DF2 and the DF3 of content, monitor sign is in order to identify this monitoring;
Step 24:
The PDSN that the targeted customer inserts replys interception request to monitoring system and replys, and has received interception request to inform monitoring system, to set up the monitoring setting that inserts PDSN with the targeted customer; Carry the sign of sign targeted customer state during interception request is replied, for example, be changed to 01H with the Code field, interception request is accepted in expression, and the user is in the Packet Service activated state; The Code field is changed to 02H, and interception request is accepted in expression, and the user is in the Packet Service dormant state; The Code field is changed to 03H, and interception request is accepted in expression, and the user does not insert packet domain; In the embodiment of the invention, because the targeted customer has inserted packet domain, therefore, the Code field is 01H or 02H;
Step 25～step 27:
The service PDSN that the targeted customer inserts initiates the monitoring service connection to monitoring system and sets up request message; The service PDSN that monitoring system inserts to the user replys the monitoring service connection and sets up request-reply, thus the beginning SM service monitoring, and wherein, in the embodiment of the invention, monitoring service stream is with the form transmission of generic route encapsulation (GRE).
2, the implementation procedure of monitoring in advance:
Monitor in advance and be meant that monitoring system sends after the snoop command, just inserted the monitoring that packet domain begins Packet Service by the eavesdropping target.Be after PDSN receives interception request, the targeted customer inserts Packet Service subsequently.Its process is as shown in Figure 3, and is specific as follows:
Step 31:
Monitoring system sends this targeted customer's setup message according to targeted customer's to be monitored IMSI to HLR, notify the HLR need be by the intercept target user, HLR obtains the MSC ID of targeted customer's access service MSC according to targeted customer's to be monitored IMSI, HLR returns targeted customer's setting to monitoring system and replys, and carries the MSC ID of targeted customer's access service MSC in this is replied;
Step 32:
Monitoring system is sent out targeted customer's setup message to this service MSC, MSC returns targeted customer's setting to monitoring system and replys, because the targeted customer does not insert packet network this moment, therefore, during replying, this carries invalid PDSN address, monitoring system is failure to actuate on the interface of self according to this invalid PDSN address; Wherein, invalid PDSN address comprises that the PDSN IP address field is made as 0 or do not comprise two kinds of situations of IP address field, adopts in the embodiment of the invention PDSN IP address field is made as 0;
Step 33～step 35:
Targeted customer's request msg business, the service MSC that the targeted customer inserts will comprise that by assignment request the monitoring information of interception type, monitoring system address, port numbers, monitor sign sends to BSC; BSC sends to PCF with monitoring information in A9-setup-A8 message, PCF sends to monitoring information by A11-Registration-Request message the PDSN of the current access of targeted customer again; Wherein, A interface assignment request message form, A9-setup-A8 message format and A11-Registration-Request message format are and carried out the message format revised, make the monitoring information that can comprise interception type, monitoring system address, port numbers, monitor sign in these message;
Step 36～step 38:
The current access of targeted customer PDSN initiates the monitoring service connection to monitoring system and sets up request message, and monitoring system is replied monitoring service connection to this PDSN and set up request-reply, thus the beginning SM service monitoring; Wherein, in embodiments of the present invention, monitoring service stream is with the form transmission of generic route encapsulation (GRE).
3, the targeted customer is under resting state, the monitoring implementation procedure when same MSC interior span PDSN switches:
Referring to shown in Figure 4, the targeted customer carries out PDSN when switching, and it is identical with above-mentioned steps 33～step 38 that it monitors implementation procedure, thereby the PDSN after monitoring system and the targeted customer's switching sets up monitoring service and is connected, and begins monitoring; Wherein, because in the handoff procedure of PDSN, the targeted customer is in resting state, do not transmit data flow to monitoring system.
4, the monitoring implementation procedure of targeted customer when same MSC interior span PDSN direct-cut operation:
Referring to shown in Figure 5, monitoring implementation procedure under monitoring implementation procedure in such cases and the user's resting state as mentioned above when same MSC interior span PDSN switches is identical, but, because the targeted customer is the direct-cut operation in same MSC, monitoring service stream is arranged before monitoring system and the switching and between the PDSN after switching in handoff procedure, therefore, assignment request described in the step 33 should be handoff request in this switches, and comprises interception type by this handoff request transmission, the monitoring system address, port numbers, the BSC that monitor sign inserts to the targeted customer at interior monitoring information; Wherein, the message format of handoff request is amended message format, makes the monitoring information that can comprise interception type, monitoring system address, port numbers, monitor sign in this message.
Monitoring implementation procedure when 5, the targeted customer strides the MSC switching:
Referring to shown in Figure 6, when the targeted customer strode the MSC switching, monitoring system need carry out the target MSC targeted customer after switching is set, and source MSC is carried out targeted customer's cancellation, specifically comprises:
Step 61: the targeted customer strides MSC switches, and HLR reports " handover event " to monitoring system, and is with target MSC ID;
Step 62: monitoring system sends targeted customer's setup message to the target MSC after switching, and MSC returns targeted customer's setting to monitoring system and replys;
Step 63: monitoring system sends the targeted customer to source MSC and cancels message, and source MSC receives that returning the targeted customer to monitoring system after this message cancels response message;
Carrying out after above-mentioned MSC switches, monitoring system by the target MSC after switching and user insert set up between the PDSN monitor the process that connects and above-mentioned monitor midway, monitoring in advance, targeted customer monitoring and the monitoring implementation procedure described in the monitoring of targeted customer when the same MSC interior span PDSN direct-cut operation when same MSC interior span PDSN carries out the dormancy switching be identical.
6, after HLR receives interception request, the monitoring implementation procedure the when targeted customer starts shooting:
Referring to shown in Figure 7, monitoring system sends targeted customer's setup message to HLR, notify the HLR targeted customer to need to monitor, because the targeted customer is not start at this moment, therefore, HLR returns the targeted customer and sets and show in the response message that this targeted customer does not start shooting, and monitoring system is received this response message, does not do action on interface; When the user started shooting access service MSC, HLR reported life event to monitoring system, and with going up the MSC ID that the targeted customer inserts; Then, monitoring system is according to the MSC ID in the life event that reports, and MSC sends targeted customer's setup message to service, and MSC returns targeted customer's setting to monitoring system and replys; Follow-up monitoring system and user insert set up between the PDSN monitor the process that connects and above-mentioned monitor midway, monitor in advance, monitoring and monitoring implementation procedure targeted customer monitoring when same MSC interior span PDSN direct-cut operation described in of targeted customer when same MSC interior span PDSN carries out the dormancy switching be identical.
When 7, the targeted customer shuts down:
Referring to shown in Figure 8, when the targeted customer shut down, HLR reported this life event to monitoring system, after monitoring system is received this reporting events, service MSC transmission targeted customer to the targeted customer cancels message, and this MSC returns the targeted customer to monitoring system and cancels response message.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.For example, if mobile digital number (MDN) or Electronic Serial Number (ESN) etc. have relation one to one with customer identification number, then also can monitor by above-mentioned number.
Claims (14)
1, a kind of monitor method of group service in group domain is characterized in that, this method may further comprise the steps:
A) monitoring system obtains the service MSC ID that the targeted customer inserts according to targeted customer's customer identification number alternately with HLR, and monitoring system sends targeted customer's setup message to the MSC that the targeted customer inserts; The MSC that the targeted customer inserts returns the PDSN address to monitoring system;
B) the PDSN address returned of the MSC that inserts according to the targeted customer of monitoring system, judge whether the targeted customer has inserted packet domain, if, then the service PDSN that inserts of monitoring system and targeted customer sets up monitoring service and is connected, monitoring system monitoring service stream, otherwise, monitoring system is waited for, insert packet domain until the targeted customer, the service MSC that the targeted customer inserts sends to the service PDSN that the targeted customer inserts with monitoring information, the service PDSN that the targeted customer inserts sets up monitoring service with monitoring system and is connected, monitoring system monitoring service stream.
2, method according to claim 1 is characterized in that before the steps A, and this method further comprises:
BSC is the PDSN that access is selected in this data service of targeted customer, with the service MSC of this PDSN reporting address to targeted customer's access.
3, method according to claim 1 is characterized in that steps A comprises:
Steps A 01: monitoring system sends targeted customer's setup message to HLR, carries targeted customer's customer identification number in this message;
After steps A 02:HLR receives targeted customer's setup message, customer identification number according to targeted customer entrained in the message, obtain the MSC ID of targeted customer's access service MSC, HLR returns the targeted customer to monitoring system and sets response message, and this targeted customer sets response message and carries MSC ID;
Steps A 03: monitoring system is according to MSC ID, and the service MSC that inserts to the targeted customer sends targeted customer's setup message, carries targeted customer's customer identification number in this message;
Steps A 04: after the service MSC that the targeted customer inserts receives targeted customer's setup message, customer identification number according to targeted customer entrained in the message, search the PDSN number that whether has this targeted customer to insert, if have, then return the targeted customer who comprises this PDSN number and set response message to monitoring system, otherwise, return the targeted customer who comprises invalid PDSN number to monitoring system and set response message.
4, method according to claim 1 is characterized in that the PDSN address that MSC that monitoring system described in the step B inserts according to the targeted customer returns, and judges whether the targeted customer has inserted packet domain and comprised:
If the PDSN address of returning is effective PDSN address, then the targeted customer has inserted packet domain, if the PDSN address of returning is invalid PDSN address, then the targeted customer does not insert packet domain.
5, method according to claim 1 is characterized in that service PDSN that targeted customer described in the step B inserts and monitoring system set up monitoring service and be connected and comprise:
The service PDSN that the user inserts sends to monitoring system and professional the connection sets up message, and monitoring system receives that the service PDSN of this message rear line access returns professional the connection and sets up response message.
6, method according to claim 1 is characterized in that service PDSN that monitoring system described in the step B and targeted customer insert sets up monitoring service and is connected and comprises:
Monitoring system sends interception request message to the service PDSN that the targeted customer inserts, and the service PDSN that the targeted customer inserts returns the interception request response message to monitoring system;
The service PDSN that the targeted customer inserts initiates the monitoring service connection to monitoring system and sets up request message, and the service PDSN answer monitoring service that monitoring system inserts to the targeted customer connects sets up request-reply message.
7, method according to claim 1 is characterized in that the service MSC that targeted customer described in the step B inserts comprises the service PDSN that monitoring information sends to targeted customer's access:
Targeted customer's request msg business, the service MSC that the targeted customer inserts will comprise that by assignment request the monitoring information of interception type, monitoring system address, port numbers, monitor sign sends to BSC; BSC sends to PCF with monitoring information in A9-setup-A8 message, PCF sends to monitoring information by A11-Registration-Request message the service PDSN of the current access of targeted customer again; Wherein, A interface assignment request message form, A9-setup-A8 message format and A11-Registration-Request message format are and carried out the message format revised, make the monitoring information that can comprise interception type, monitoring system address, port numbers, monitor sign in these message.
8, method according to claim 7 is characterized in that, described targeted customer's request msg business is that the targeted customer is switched in same MSC interior span PDSN dormancy.
9, method according to claim 7 is characterized in that, described targeted customer's request msg business be the targeted customer at same MSC interior span PDSN direct-cut operation, described assignment request is a handoff request, the message format of described handoff request is amended form.
10, method according to claim 1 is characterized in that, switches if the targeted customer strides MSC, and this method further comprises:
HLR sends the handover event reporting message to monitoring system, carries the target MSC ID after the switching in this message; Then, monitoring system sends targeted customer's setup message to the target MSC after switching, and MSC returns targeted customer's setting to monitoring system and replys; With, monitoring system source MSC is sent the targeted customer and cancel message, source MSC receives that returning the targeted customer to monitoring system after this message cancels response message.
11, method according to claim 1, it is characterized in that, the step that described monitoring system and HLR obtain the service MSC ID of targeted customer's access alternately comprises: if after HLR receives targeted customer's setup message of monitoring system transmission, the targeted customer is just start subsequently, then HLR returns the targeted customer to monitoring system and sets response message, described targeted customer sets response message and shows that this targeted customer does not start shooting, and monitoring system is received this response message, does not do action on interface; When the user started shooting access service MSC, HLR reported life event to monitoring system, and with going up the MSC ID that the targeted customer inserts.
12, method according to claim 1 is characterized in that this method further comprises if the targeted customer shuts down:
HLR reports targeted customer's life event that shuts down to monitoring system, after monitoring system is received this reporting events, targeted customer's service MSC is sent the targeted customer cancel message, and this MSC returns the targeted customer to monitoring system and cancels response message.
13, monitor method according to claim 1 is characterized in that, described customer identification number is the international mobile subscriber identifier, perhaps is mobile digital number, or Electronic Serial Number.
14, monitor method according to claim 1 is characterized in that, the monitoring service stream between monitoring system and the PDSN is with the form transmission of generic route encapsulation GRE.
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