CN1301630C - Method for providing third-party positioning for GSM user (1) - Google Patents

Abstract

A kind of CDMA network provides the method for third-party positioning to the GSM mobile user that enters CDMA network, comprises: configure routing data between CDMA MPC and G&C gateway, be used to obtain the location information of GSM user from G&C gateway; CDMA MPC will G&C gateway As a CDMA HLR, it queries the G&C gateway for the location information of the GSM user; the CDMA MPC will trigger the location short message MT to be sent to the GSM user roaming to the CDMA network according to the location information returned by the G&C gateway; the GSM user roaming to the CDMA network will Agree to send short message MO to CDMA MPC through CDMA MSC. The invention only needs to modify the processing flow of the G&C gateway, and can provide the third-party positioning service of the CDMA network to the GSM user roaming to the CDMA network.

Description

The method of providing third-party positioning for GSM users (1)

technical field

The invention relates to the field of mobile communication, in particular to a technique for positioning a GSM mobile user entering a CDMA network.

Background technique

In order to realize the mutual roaming between the GSM network and the CDMA network, it is necessary to add a device between the CDMA network and the GSM network to be responsible for the conversion of signaling, parameters and services of the two networks. This device is called IIF (Interworking and Interoperation Function) in the standard of 3GPP2 (Third Generation Partnership Project 2, third-generation mobile communication standardization partner project 2), and is called G&C in China Unicom's technical specifications The gateway (GSM&CDMA gateway), for the sake of simplicity of description, is collectively referred to as the G&C gateway in the present invention. The G&C gateway is an existing technology, and for details, refer to the N.S0028 protocol of 3GPP2.

In a CDMA network, there are two ways of triggering location services: mobile node triggering (self-location) and network triggering (third-party positioning). For simplicity of description, the present invention refers to these two different trigger modes as self-location and third-party location services. Self-location is a positioning service triggered by a mobile node, mainly including self-location query, electronic map, etc.; third-party positioning is a positioning service triggered by the network, mainly including other person's location query, vehicle tracking, etc. During the realization of this type of service, The network needs to confirm the service area where the inquired party is currently located through a certain mechanism, so as to establish a certain connection (signaling connection, TCP/IP connection, etc.), and needs to determine whether the searching party has the right to query the location of the searched party. According to the prior art, when a GSM user roams to a CDMA network, it can use the self-location service like a CDMA local network user, but cannot use a third-party location service. The reasons are as follows:

1) The third-party positioning business process includes: CDMA MPC (CDMA Mobile Position Center, CDMA Mobile Positioning Center) needs to send a trigger positioning short message MT (Mobile Station Termination, mobile station termination) to the positioned user, and the positioned user sends a message to the CDMA MPC Return a short message MO (Mobile Station Origination) for positioning service, indicating whether to agree to be positioned.

2) The GSM user's short message sending and receiving process in the CDMA network includes: when a GSM user receives a short message, the GSM short message center to which it belongs must send it to the CDMA MSC (CDMA Mobile Switching Center) visited by the user through the G&C gateway; When sending a short message, it must also be sent to the GSM short message center to which it belongs through the G&C gateway.

Therefore, according to the current technology, CDMAMPC cannot send this short message MT for positioning to the GSM user roaming to the CDMA network.

Contents of the invention

The technical problem to be solved by the invention is to solve the sending of short message MT used for positioning, so as to provide third-party positioning service to GSM users roaming to CDMA network.

For the sake of brevity, the following conventions are made:

Mobile Station Termination: Mobile Station Termination, collectively referred to as MT in the present invention;

Mobile Station Origination: mobile station origination, collectively referred to as MO in the present invention;

CDMA Mobile Position Center: CDMA mobile positioning center, collectively referred to as CDMAMPC in the present invention.

Technical scheme of the present invention comprises:

1.1 Configure routing data between the CDMA mobile positioning center and the G&C gateway for the CDMA mobile positioning center to obtain the location information of the GSM user from the G&C gateway;

1.2 When the CDMA MPC needs to send a trigger positioning short message MT to a GSM user roaming to the CDMA network, the G&C gateway is regarded as a CDMA HLR, and the location information of the GSM user is inquired from the corresponding G&C gateway, and the G&C gateway returns the GSM user to the CDMA MPC Location information on the CDMA network; location information of the user, that is, the CDMA MSC visited by the user;

1.3CDMA MPC will send trigger positioning short message MT to GSM users roaming to CDMA network according to the location information returned by G&C gateway;

1.4 GSM users roaming to CDMA network will agree to send positioning short message MO to CDMA MPC through CDMAMSC.

1.4 in the above-mentioned technical scheme also can be: described GSM user will agree to locate short message and send to G&C gateway by CDMA MSC; The GSM short message center; the GSM short message center sends the short message that the caller agrees to locate directly to the CDMA mobile positioning center, or sends it to the CDMA mobile positioning center through the CDMA short message center.

1.4 in the above-mentioned technical scheme can also be: described GSM user will agree to locate short message and send to G&C gateway by CDMA MSC; After calling the short message, send it to the CDMA mobile positioning center.

The core of the inventive method is to use the G&C gateway as the CDMA HLR (CDMA Home Location Register) of the GSM user roaming to the CDMA network, to provide the location information of the GSM user in the CDMA network to the CDMA MPC.

With the solution proposed by the invention, the third-party positioning service of the CDMA network can be provided to the GSM user roaming to the CDMA network only by modifying the processing flow of the G&C gateway.

Description of drawings

Fig. 1 is a schematic flow chart of an embodiment of the present invention.

Fig. 2 is a schematic flow chart of another embodiment of the present invention.

Fig. 3 is a schematic flow chart of another embodiment of the present invention.

Detailed ways

Three specific implementations of the present invention will be described below in conjunction with the accompanying drawings. All three implementation modes need to configure routing data between the CDMA mobile positioning center and the G&C gateway. This content will not be repeated in the following introduction.

One of the implementation methods:

Referring to Figure 1, GSM users have successfully connected to the CDMA network, and need to trigger third-party positioning services for them:

101) The CDMA MPC queries the location information of the GSM user to the corresponding G&C gateway;

102) The G&C gateway returns the location information of the GSM user in the CDMA network to the CDMA MPC, that is, the CDMA MSC visited by the user;

103) The CDMA MPC sends the trigger positioning short message MT to the CDMA MSC according to the location information returned by the G&C gateway, and then the CDMA MSC sends it to the GSM user;

104) CDMA MSC returns a response message to CDMA MPC;

105) The GSM user will agree to send the positioning short message MO to the CDMA MSC. CDMA MSC sends it to CDMA MPC.

The second implementation mode:

Referring to Figure 2, the GSM user has successfully connected to the CDMA network, and needs to trigger the third-party positioning service for it:

201) The CDMA MPC queries the location information of the GSM user to the corresponding G&C gateway (i.e. the G&C gateway to which the user belongs);

202) The G&C gateway returns the location information of the GSM user in the CDMA network to the CDMA MPC, that is, the CDMA MSC visited by the user;

203) The CDMA MPC sends the trigger positioning short message MT to the CDMA MSC according to the location information returned by the G&C gateway, and then sent to the GSM user by the CDMA MSC;

204) CDMA MSC returns a response message to CDMA MPC;

205) The GSM user will agree to send the positioning short message MO to the CDMA MSC. CDMA MSC sends it to G&C gateway;

206) G&C gateway sends this short message to the GSM short message center to which the GSM user belongs as a common short message;

207) After the G&C gateway receives the response message from the GSM short message center, it sends a response message to the CDMA MSC;

208) If the CDMA MPC supports the connection with the GSM short message center, the GSM short message center directly sends the short message to the CDMA MPC, otherwise the GSM short message center sends the short message to the CDMA MPC through the CDMA short message center.

The third implementation mode:

Referring to Figure 3, the GSM user has successfully connected to the CDMA network, and needs to trigger the third-party positioning service for it:

301) The CDMA MPC queries the location information of the GSM user to the corresponding G&C gateway;

302) The G&C gateway returns the location information of the GSM user in the CDMA network to the CDMA MPC, that is, the CDMA MSC visited by the user;

303) The CDMA MPC sends the trigger positioning short message MT to the CDMA MSC according to the location information returned by the G&C gateway, and then the CDMA MSC sends it to the GSM user;

304) The CDMA MSC returns a response message to the CDMA MPC. ;

305) The GSM user will agree to send the positioning short message MO to the CDMA MSC. CDMA MSC sends it to G&C gateway;

306) G&C gateway will judge that this short message is a short message MO for positioning, then directly send it to CDMA MPC;

307) After receiving the response message from the CDMA MPC, the G&C gateway sends a response message to the CDMA MSC.

Claims (6)

1, a kind of method that provides the third party to locate for GSM user may further comprise the steps:

1.1 at CDMA mobile positioning center and G﹠amp; Dispose route data between the C gateway;

1.2CDMA mobile positioning center need send when eventually exhaling the triggered location short message to the GSM user who roams to cdma network, to G﹠amp; C gateway queries position information of GSM user, G﹠amp; The C gateway returns the positional information of GSM user at cdma network to the CDMA mobile positioning center;

1.3CDMA mobile positioning center is according to G﹠amp; The positional information that the C gateway is returned will exhale the triggered location short message to be sent to described GSM user end;

1.4 exhaling the beginning, described GSM user agrees that positioning short message is sent to the CDMA mobile positioning center by CDMA mobile switching centre.

2, the described method that provides the third party to locate for GSM user of claim 1 is characterized in that described GSM user is meant the CDMA mobile switching centre at GSM user place in the position of cdma network.

3, a kind of method that provides the third party to locate for GSM user may further comprise the steps:

3.1 at CDMA mobile positioning center and G﹠amp; Dispose route data between the C gateway;

3.2CDMA mobile positioning center need send when eventually exhaling the triggered location short message to the GSM user who roams to cdma network, to G﹠amp; C gateway queries position information of GSM user, G﹠amp; The C gateway returns the positional information of GSM user at cdma network to the CDMA mobile positioning center;

3.3CDMA mobile positioning center is according to G﹠amp; The positional information that the C gateway is returned will exhale the triggered location short message to be sent to described GSM user end;

3.4 described GSM user will agree that positioning short message is sent to G﹠amp by CDMA mobile switching centre; The C gateway;

3.5G﹠amp; The C gateway exhales the agreement positioning short message to exhale short message to be sent to the GSM short message service center that GSM user belongs to as the common beginning beginning;

3.6GSM short message service center exhales the short message of agreeing the location directly to be sent to the CDMA mobile positioning center beginning, or is sent to the CDMA mobile positioning center by CDMA short message service center.

4, the described method that provides the third party to locate for GSM user of claim 3 is characterized in that described GSM user is meant the CDMA mobile switching centre at GSM user place in the position of cdma network.

5, a kind of method that provides the third party to locate for GSM user may further comprise the steps:

5.1 at CDMA mobile positioning center and G﹠amp; Dispose route data between the C gateway;

5.2CDMA mobile positioning center need send when eventually exhaling the triggered location short message to the GSM user who roams to cdma network, to G﹠amp; C gateway queries position information of GSM user, G﹠amp; The C gateway returns the positional information of GSM user at cdma network to the CDMA mobile positioning center;

5.3CDMA mobile positioning center is according to G﹠amp; The positional information that the C gateway is returned will exhale the triggered location short message to be sent to described GSM user end;

5.4 described GSM user will agree that positioning short message is sent to G﹠amp by CDMA mobile switching centre; The C gateway;

5.5G﹠amp; The C gateway receives the beginning and exhales the agreement positioning short message, and judging this is after a beginning that is used for positioning service exhaling short message, to send it to the CDMA mobile positioning center.

6, the described method that provides the third party to locate for GSM user of claim 5 is characterized in that described GSM user is meant the CDMA mobile switching centre at GSM user place in the position of cdma network.

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