CN1684542A - Method for automatically reporting targeted user equipment position information - Google Patents

Abstract

The invention discloses a method for automatically reporting the location information of a target user equipment. The method includes: setting a target user equipment and a special number list in the SCP; when the target user equipment initiates a call to the special number, the SCP instructs the positioning center to The target user equipment is positioned, and the positioning center reports the current location information of the target user equipment. According to the method proposed by the present invention, a special number is set in the SCP, and when the target user equipment calls the special number, the SCP notifies the positioning center to locate the target user equipment, and then the positioning center performs a positioning operation on the target user equipment, and reports to the monitoring system The current location information of the target user equipment greatly improves the efficiency and effectiveness of monitoring activities; moreover, the present invention provides multiple implementation modes with flexible options.

Description

A method for automatically reporting location information of target user equipment

technical field

The invention relates to an automatic positioning technology, in particular to a method for automatically reporting the location information of a target user equipment.

Background technique

Lawful interception refers to the activities of national security agencies to monitor telecommunications services within the scope permitted by law. According to the requirements of the national security department, all operating mobile communication systems, including Public Switched Telephone Network (PSTN, Public Switched Telephone Network), Global Mobile Communication (GSM, Global System for Mobile Communication) system, Code Division Multiple Access (CDMA, CodeDivision Multiple Access) communication system, as well as future wide code division multiple access (W-CDMA, Wide Code Division Multiple Access) communication system, next generation network (NGN), etc., must enable national security departments to monitor mobile users and provide The monitoring interface that implements monitoring, such as the X interface. The user equipment to be intercepted by lawful interception is called the target user equipment.

Fig. 1 is the listening interface synoptic diagram of LIC and communication equipment, as shown in Figure 1, the police information center (LIC) 102 of national security department's monitoring system is connected with the communication equipment 101 in the mobile communication system by X interface 103, realizes target Monitoring of user equipment communication activity events and content. In the existing monitoring technical standards, the services that can be monitored include: voice service, fax service, supplementary service and short message service.

The communication device 101 can be a mobile switching center (MSC, MobileSwitch Center), a home location register (HLR, Home Location Register), a short message center (SMC, Short Message Center), a packet data service node (PDSN, PacketData) in a CDMA communication system. Service Node), Authentication Authorization and Accounting (AAA) server, Mobile Positioning Center (MPC, Mobile Position Center), etc. The communication equipment can also be MSC, HLR, Home Subscriber Server (HSS, Home Subscriber Server), SMC, Serving General Packet Radio Service Support Node (SGSN, Serving GPRS Support Node) and Gateway General Packet Radio Service in the W-CDMA communication system. Support Node (GGSN, Gateway GPRS Support Node), Gateway Mobile Location Center (GMLC, Gateway Mobile Location Center), etc.

The X interface 103 between the LIC 102 and the communication device 101 includes: a signaling interface X1, service interfaces X2 and X3. The X1 interface realizes the management of monitoring activities, including setting the target user equipment, querying monitoring parameters, canceling the monitoring of the target user equipment, etc.; the X2 interface reports the communication activity-related events of the target user equipment to the LIC 102; the X3 interface reports to the LIC 102 The communication content of the target user equipment, such as call voice. The transmission bearer of X1 interface and X2 interface is Transmission Control Protocol (TCP)/Internet Protocol (IP) or X.25; the voice transmission bearer of X3 interface is E1 link, and the packet data transmission bearer is TCP/IP or X.25.

Both the CDMA communication system and the W-CDMA communication system support the positioning function of the target user equipment, and the positioning accuracy can reach a range of several meters. In the CDMA communication system, the location service is provided by the MPC; in the W-CDMA communication system, the location service is provided by the GMLC, and the MPC/GMLC performs positioning operations on the target user equipment to obtain the location information of the target user equipment.

In order to monitor the location service of the target user equipment, the LIC is connected to the MPC/GMLC. Fig. 2 is the schematic diagram of the monitoring interface of LIC and MPC/GMLC, as shown in Fig. 2, since LIC 102 and MPC/GMLC 201 manage the monitoring activity of the location service through X interface 202 and report the activity related to the location service of the target user equipment Therefore, the X interface 202 between the LIC 102 and the MPC/GMLC 201 only needs to include the X1 interface and the X2 interface, and the transmission bearer of the X1 interface and the X2 interface is TCP/IP or X.25. The X1 interface is used for signaling interaction between LIC 102 and MPC/GMLC 201, and the functions realized include target user equipment setting, target user equipment cancellation, parameter query, target user equipment positioning, etc.; X2 interface is used to report target user equipment For activity-related events in MPC/GMLC601, the reported events include target user equipment startup events, target user equipment shutdown events, location information query events, etc. When the location information of the user equipment, report the current location information of the target user equipment identification, occurrence event, event occurrence time to LIC 102.

Although the existing technology can realize the monitoring of the location service of the target user equipment and obtain the location information of the target user equipment, the condition for the LIC to obtain the location information of the target user equipment is: a specific event occurs or the LIC initiates a monitoring of the target user equipment to the MPC/GMLC. The location of the user device. However, in order to improve the effectiveness of monitoring, it is necessary to timely and accurately grasp the location information of the target user equipment, especially when the target user equipment is performing communication activities, the MPC/GMLC will not automatically report the current location information of the target user equipment to the LIC at all. The efficiency and effectiveness of monitoring the target user equipment are greatly reduced.

Contents of the invention

In view of this, the purpose of the present invention is to provide a method for automatically reporting the location information of the target user equipment, so as to improve the effectiveness of monitoring activities.

In order to achieve the above object, the present invention provides a method for automatically reporting the location information of the target user equipment, the method comprising:

A. Set target user equipment and special number list in SCP;

B. When the target user equipment initiates a call to the special number, the SCP instructs the positioning center to locate the target user equipment, and the positioning center reports the current location information of the target user equipment.

Setting the list of special numbers in the SCP as described in step A includes the following steps:

A1. The monitoring system provides a list of special numbers to the positioning center;

A2. The SCP stores the list of special numbers provided by the location center.

The provision of the special number list by the positioning center to the SCP includes: configuring the SCP identification in the positioning center, and providing the special number list to the SCP according to the SCP identification.

The provision of the special number list by the positioning center to the SCP includes: configuring the SCP identifier in the positioning center, determining the SCP to which the target user equipment belongs according to the target user equipment identifier, and then providing the special number list to the SCP.

The setting of the special number list in the SCP described in step A is: the monitoring system directly sets the special number list in the SCP.

After the step A, it further includes: the SCP notifies the positioning center to set the target user equipment.

Before the SCP instructs the positioning center to locate the target user equipment, it further includes: the switching center reports a call event to the SCP, and the call event carries the target user equipment identifier.

Before instructing the positioning center to locate the target user equipment, the method further includes: the SCP judges whether the called number called by the target user equipment is a special number, and if so, instructs the positioning center to locate the target user equipment.

The call event further includes: a called number called by the target user equipment.

When reporting the current location information of the target user equipment, it further includes: reporting the special number called by the target user equipment.

The method further includes: canceling the setting of the special number list.

When the setting of the target user equipment is canceled, the setting of the special number list is automatically canceled.

When the setting of the target user equipment is canceled, the setting of the special number list is automatically canceled.

The list of special numbers includes one or more special numbers.

The special number list further includes an indication parameter, which is used to indicate whether all calls initiated by the target user equipment report the current location information of the target user equipment.

The call is: a voice service call, or a fax service call, or a data service call, or a short message service call.

According to the method proposed by the present invention, a special number is set in the SCP, and when the target user equipment calls the special number, the SCP notifies the positioning center to locate the target user equipment, and then the positioning center performs a positioning operation on the target user equipment, and reports to the monitoring system The current location information of the target user equipment greatly improves the efficiency and effectiveness of monitoring activities; moreover, the present invention provides multiple implementation modes with flexible options.

Description of drawings

Fig. 1 is the schematic diagram of the monitoring interface of LIC and communication equipment;

Fig. 2 is the schematic diagram of the monitoring interface of LIC and MPC/GMLC;

Fig. 3 is a schematic diagram for realizing the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

In the present invention, a special number is set in the service control point (SCP), and when the target user equipment calls the special number, the SCP notifies the positioning center to locate the target user equipment, and then the positioning center performs a positioning operation on the target user equipment, and reports to the monitoring The system reports the current location information of the target user equipment. The positioning center can be an MPC in a CDMA communication system, a GMLC in a W-CDMA communication system, and the like.

Fig. 3 is a schematic diagram of realizing the present invention, as shown in Fig. 3, LIC 102 sets special number list in SCP 301, LIC 102 can set special number list in SCP 301 through MPC/GMLC 201, LIC 102 can request MPC /When GMLC 201 monitors the location service of the target user equipment, set the special number list, and then provide the special number list to SCP 301 by MPC/GMLC 201, or provide the special number list by LIC 102 to MPC/GMLC 201 through an independent process, Then the special number list is provided to SCP 301 by MPC/GMLC 201; LIC 102 can set special number list in SCP 301 through X interface when requesting SCP 301 to monitor target user equipment, also can set in SCP 301 through independent process Specify a list of special numbers. The special number list may only include one special number, or may include a group of special numbers composed of multiple special numbers.

LIC 102 sends a special number setting request to MPC/GMLC 201. The special number setting request carries a target user equipment identifier and a list of special numbers. The target user equipment identifier can be a mobile directory (MDN) in the CDMA communication system, International Mobile Subscriber Identity (IMSI), Electronic Serial Number (ESN), etc., can also be Mobile Station International Integrated Service Service Network Number (MSISDN, Mobile Subscriber ISDN Number) and International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity), International Mobile Station Equipment Identity (IMEI, International Mobile Station Equipment Identity), etc. The special number list may also include an indication parameter, which is used to indicate whether all calls initiated by the target user equipment need to report the location information of the target user equipment. For example, 0 indicates that when the target user equipment only initiates a call to a special number, the target user equipment's Location information, 1 means that all calls initiated by the target user equipment need to report the location information of the target user equipment, that is, all numbers are set as special numbers.

After receiving the special number setting request, MPC/GMLC 201 sets the corresponding user equipment as the target user equipment to be monitored, and then sends a special number notification to SCP 301. The special number notification carries the target user equipment identifier and special number. list of numbers. The SCP identification can be pre-configured in MPC/GMLC 201, and a special number list can be provided to SCP 301 according to the SCP identification; MPC/GMLC 201 can also obtain the SCP 301 to which the target user equipment belongs through the target user equipment identification, and then send the information to the SCP to which the target user equipment belongs. 301 provides a list of special numbers, and SCP 301 stores the list of special numbers received.

In addition, the process for the LIC 102 to set the special number list in the SCP 301 can also be: the LIC 102 sends a special number setting request to each SCP 301, and the special number setting request carries the target user equipment identifier and the special number list, The target user equipment identifier may be MDN, IMSI, ESN, etc. in the CDMA communication system, or may be MSISDN, IMSI, IMEI, etc. in the W-CDMA communication system. The special number list may also include an indication parameter, which is used to indicate whether all calls initiated by the target user equipment need to report the location information of the target user equipment. For example, 0 indicates that when the target user equipment only initiates a call to a special number, the target user equipment's Location information, 1 indicates that all calls initiated by the target user equipment, that is, all numbers are set as special numbers, need to report the location information of the target user equipment. After receiving the special number setting request, SCP 301 sets the corresponding user equipment as the target user equipment to be monitored, and stores the list of special numbers; further, SCP 301 notifies MPC/GMLC 201 to set the target user equipment as the monitored user equipment target user devices.

When the target user equipment initiates a call, MSC 302 reports a call event to SCP 301, the call event carries the target user equipment ID and called number, SCP 301 judges whether the called number belongs to the special number list, if the called number belongs to the special number list list, the SCP 301 sends a location instruction to the MPC/GMLC 201, the location instruction carries the target user equipment identifier, and the location instruction may further carry the special number called by the target user equipment; if the called number does not belong to the special number list, SCP 301 will not perform relevant operations.

The target user equipment can be set in the MSC 302, and when the target user equipment initiates a call, the call event is reported to the SCP 301; it is not necessary to set the target user equipment in the MSC 302, as long as the MSC302 receives a call from the user equipment, it will report the call event to the SCP 301 reports the call event, then determines whether the user equipment that initiates the call is the target user equipment by SCP 301, and if so, then continues to judge whether the called number is a special number.

After the MPC/GMLC 201 receives the positioning instruction, it performs a positioning operation on the target user equipment according to the target user equipment identifier, and then reports the positioning result to the LIC 102. The positioning result carries the target user equipment identifier and the current location information of the target user equipment. If The SCP 301 provides the special number called by the target user equipment to the MPC/GMLC 201, and the positioning result may further carry the special number.

The implementation process of changing the special number list in SCP 201 is basically the same as the process of setting the special number list in SCP 201, except that the original special number list is replaced with the current special number list, so I won’t go into details here.

The LIC 102 can cancel the setting of the special number. At this time, the LIC 102 sends a special number cancellation request to the MPC/GMLC 201, and the special number setting request carries the identification of the target user equipment. After receiving the special number cancellation request, the MPC/GMLC 201 sends a special number cancellation instruction to the SCP 301, and the special number cancellation instruction carries the identification of the target user equipment. SCP 301 deletes the special number list after receiving the special number cancellation instruction.

In addition, the process for the LIC 102 to cancel the setting of the special number list in the SCP 301 may also be: the LIC 102 sends a special number cancellation request to the SCP 301, and the special number setting request carries the identification of the target user equipment. SCP 301 deletes the special number list after receiving the special number cancellation request.

In addition, if the target user equipment is set as the monitored target user equipment in MSC 302, MSC 302 can be notified that when the subsequent target user equipment initiates a call, it will no longer report the call event to SCP 301, so as to reduce the information between devices Interactive, save system resources.

The above-mentioned location information of the target user equipment may be a cell identifier and geographic location information, and the geographic location information may be latitude and longitude information.

The above-mentioned calls may be voice service calls, fax service calls, data service calls, short message service calls, and so on.

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (16)

1. A method for automatically reporting the location information of a target user equipment, characterized in that the method comprises the following steps: A. Set target user equipment and special number list in SCP; B. When the target user equipment initiates a call to the special number, the SCP instructs the positioning center to locate the target user equipment, and the positioning center reports the current location information of the target user equipment. 2. The method according to claim 1, characterized in that, setting the list of special numbers in the SCP as described in step A comprises the following steps: A1. The monitoring system provides a list of special numbers to the positioning center; A2. The SCP stores the list of special numbers provided by the location center. 3. The method according to claim 2, wherein the location center provides the special number list to the SCP comprising: configuring the SCP identification in the location center, and providing the special number list to the SCP according to the SCP identification. 4. The method according to claim 2, wherein the location center provides the SCP with a list of special numbers comprising: configuring the SCP identifier at the location center, determining the SCP to which the target user equipment belongs according to the target user equipment identifier, and then sending This SCP provides a list of special numbers. 5. The method according to claim 1, characterized in that setting the list of special numbers in the SCP in step A is: the monitoring system directly sets the list of special numbers in the SCP. 6. The method according to claim 5, further comprising: after the step A, the SCP notifies the positioning center to set the target user equipment. 7. The method according to claim 1, wherein before the SCP instructs the positioning center to locate the target user equipment, it further includes: the switching center reports a call event to the SCP, and the call event carries the target user equipment identifier . 8. The method according to claim 1 or 7, characterized in that before instructing the positioning center to locate the target user equipment, it further includes: SCP judging whether the called number called by the target user equipment is a special number, if so , then instruct the positioning center to locate the target user equipment. 9. The method according to claim 8, wherein the call event further includes: a called number called by the target user equipment. 10. The method according to claim 9, wherein when reporting the current location information of the target user equipment, further comprising: reporting the special number called by the target user equipment. 11. The method according to claim 1 or 2, further comprising: canceling the setting of the special number list. 12. The method according to claim 1 or 2, characterized in that when the setting of the target user equipment is canceled, the setting of the special number list is automatically canceled. 13. The method according to claim 1 or 2, characterized in that when the setting of the target user equipment is canceled, the setting of the special number list is automatically canceled. 14. The method according to claim 1, wherein the special number list includes one or more special numbers. 15. The method according to claim 14, wherein the special number list further includes an indication parameter, which is used to indicate whether all calls initiated by the target user equipment report the current location information of the target user equipment. 16. The method according to claim 1, wherein the call is: a voice service call, or a fax service call, or a data service call, or a short message service call.

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