WO2005104577A1

WO2005104577A1 - A system of realizing location and method thereof

Info

Publication number: WO2005104577A1
Application number: PCT/CN2005/000458
Authority: WO
Inventors: Shengqiong Wang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2004-04-22
Filing date: 2005-04-07
Publication date: 2005-11-03
Also published as: CN1314297C; CA2561042A1; CN1691818A; KR20060134023A

Abstract

The present invention discloses a system of realizing location. The system comprises: more than one location centers having address resolution function and one or more than one communication devices , in which location center connects with one or more than one communication devices in mobile communication network to which location center belongs, each location center connects each other. A method of realizing location includes: requested location center receives location request, and searchs for visited location center where destination UE is situated; requested location center sends location request to said visited location center, and obtains location information of destination UE. Based on the scheme suggested by the present invention , it simplifies structure of mobile communication network , and decreases cost of maintaining and upgrading mobile communication network; and when destination UE roams in different location system, relating information which locates destination UE is only transferred by each location center , and without being transferred among other communication devices in mobile communication network.

Description

System and method for realizing positioning

Technical field

The present invention relates to the field of positioning, and particularly to a system and method for implementing positioning. Background of the invention

A positioning system (LCS, Location System) refers to a system capable of obtaining specific location information of a specific, movable target. Currently, in a mobile communication system, location information of a target user equipment (UE), such as a cell identifier, latitude and longitude information, is obtained through a positioning technology. With the support of an electronic map information system (GIS) and a location-based content information system, the location information of the target UE can be provided to the target UE for its own positioning; it can also be provided to the communication network itself for Charge by area or operation and maintenance; it can also be provided to other client applications that request the location information of the target UE, that is, LCS clients (LCS Clients), such as institutions and individuals, for value-added services.

In a mobile communication network of the same standard, the target UE can achieve roaming between the positioning systems of the mobile communication network.

FIG. 1 is a schematic diagram of a networking for positioning in a third generation (3G) mobile communication network, as shown in FIG.

As shown in FIG. 1, the LCS client 101 sends a positioning request for the target UE 108 to the requested gateway mobile location center (RGMLC) 102. After receiving the positioning request, the RGMLC 102 finds the target according to the target UE identifier. The home gateway mobile location center (HGMLC, Home Gateway Mobile Location Center) 103 of the UE 108, and the local subscriber server (HSS, Home Subscriber Server) / Home location register (HLR, 104) in the area where it is located, and the HSS / HLR 104 interacts to obtain the current location information of the target UE 108, and then the RGMLC 102 finds the location gateway of the target UE 108 according to the current location information of the target UE 108 and moves The location center (VGMLC, Visited Gateway Mobile Location Center) 105 locates the HSS / HLR 106 in the area, and interacts with the HSS / HLR 106 to obtain information related to the current location of the target UE 108, thereby obtaining specific location information of the target UE 108. VGMLC 105 and HSS / HLR 106 belong to a Public Land Mobile Network (PLMN, Public Land Mobile Network) 107 where the target UE is currently located. The mobile communication networks where RGMLC 102, RGMLC 103, and VGMLC 105 are located are all based on the same standard.

FIG. 2 is a schematic diagram of a positioning network in a 3G2 mobile communication network. As shown in FIG. 2, the LCS client 101 sends a positioning request for a target UE to a Requested Mobile Position Center (RMPC, 201), and RMPC 201 After receiving the positioning request, the UE locates the target UE, finds the HLR 203 in the area where the target UE ’s home mobile positioning center (HMPC, Home Mobile Position Center) 202 is located, and interacts with the HLR 203 to obtain the current location information of the target UE. Then RMPC 201 finds the HLR 205 in the area where the target UE's local Mobile Positioning Center (VMPC, Visited Mobile Position Center) 204 is located according to the current location information of the target UE, and interacts with the HLR 205 to obtain information related to the current location of the target UE. To obtain specific location information of the target UE.

From the above description, it can be seen that GMLC or MPC needs to be connected not only with local communication equipment such as HSS / HLR, but also with other communication equipment such as HSS / HLR. Difficulties increase the cost of maintaining and upgrading mobile communication networks.

In addition, because GMLC or MPC must be connected to local and non-local communication equipment, it is impossible to achieve roaming between positioning systems in mobile communication networks of different standards through the existing technology. For example, the target UE cannot use 3G mobile communication described above. Roaming is realized between the network and each positioning system in the 3G2 mobile communication network. Summary of the invention

In view of this, an object of the present invention is to provide a system for implementing positioning and simplify the structure of a mobile communication network. Another object of the present invention is to provide a method for implementing positioning, so that positioning-related information need only be transmitted through each positioning center.

In order to achieve the above objective, the present invention provides a system for implementing positioning, which includes: more than one positioning center having an address resolution function and one or more communication devices, the positioning center and one or more of the mobile communication networks to which the positioning center belongs. More than one communication device is connected, and each positioning center is connected.

The present invention also provides a method for implementing positioning, which includes the following steps:

A. The requested positioning center receives the positioning request and finds the positioning center where the target UE is currently located.

B. The requested local positioning center sends a positioning request to the local positioning center to obtain the position information of the target UE.

By requesting the positioning center to interact with a communication device in the mobile communication network to which the target positioning center belongs, the localization center where the target UE is currently located as described in step A is realized.

The interaction between the requested location center and the communication device in the mobile communication network to which the requested location center includes: the requested location center to provide the target UE identification to the communication device in the mobile communication network to which the requested location center is located, and the communication device locates the requested location according to the target UE identification. The center provides address information of a location center where the target UE is currently located; and the requesting location center finds the location center where the target UE is currently located according to the address information.

The requesting positioning center finds the current location of the target UE according to the address information: The requesting positioning center finds the current location center of the target UE according to the stored address list and the received address information.

Before the providing to the requested location center the address information of the location center where the target UE is currently located, the method further includes: the communication device interacting with another communication device, Obtain the address information of the location center where the target UE is currently located.

Obtaining the location information of the target UE as described in step B includes: After receiving a positioning request, the local positioning center interacts with a communication device of a mobile communication network to which the location center belongs to obtain relevant data required for calculating the location information of the target UE.

Before the acquiring the relevant data required for calculating the location information of the target UE, the method further includes: interacting with the requested location center.

The step A further includes: finding a home location center of the target UE.

The step B further includes: the requesting location center sends a location request to the home location center.

After step B, the method further includes: requesting the positioning center to provide the LCS client with the target UE location information.

According to the solution proposed by the present invention, a positioning center with an address resolution function is connected to a communication device of a mobile communication network to which the positioning center belongs, and then each positioning center is connected in pairs to achieve positioning of the target UE, which greatly simplifies the mobile communication network. Structure, reducing the cost of maintaining and upgrading the mobile communication network; when the target UE is roaming in different positioning systems, the relevant information for positioning the target UE need only be transmitted through each positioning center, and no other communication in the mobile communication network is required Transfer between devices.

Because the connection link between the positioning centers has nothing to do with the specific implementation of the mobile communication network, each positioning system no longer has to be a positioning system in the same standard mobile communication network, and only an application layer needs to be added to the mobile communication network. The positioning center can easily realize the positioning of the target UE when the target UE is roaming through various positioning systems in different standard mobile communication networks, without improving the existing mobile communication network. Brief description of the drawings

FIG. 1 is a schematic diagram of a networking for positioning in a 3G mobile communication network; Figure 2 is a schematic diagram of a 3G2 mobile communication network for positioning;

FIG. 3 is a schematic diagram of the networking of positioning in the present invention;

FIG. 4 is a flowchart of positioning in the present invention. Ways of Carrying Out the Invention

The present invention is described in detail below with reference to the drawings.

In the present invention, the positioning center has an address resolution function. The positioning center is connected to the communication equipment of the mobile communication network to which the positioning center is connected, and then each positioning center is connected in pairs to achieve positioning of the target UE and to achieve target UE positioning in different positions. Roaming between systems. The address list is stored in the positioning center, so that the positioning center can find the destination positioning center according to the address list, thereby implementing the address resolution function of the positioning center. The positioning center described in the present invention may be a new functional entity in a mobile communication network, or it may be an upgrade of existing positioning equipment such as GMLC and MPC.

FIG. 3 is a schematic diagram of the networking for positioning in the present invention. As shown in FIG. 3, for the target UE 108, if the home location center, the local location center of the target UE 108, and the location where the target UE request is received, The positioning centers are different positioning centers, and each positioning center is connected in pairs as follows: The home location center 303 is connected to the local location center 305, the home location center 303 is connected to the requested location center 301, and the local location center 305 is connected to the requested location center 301 is connected, and the positioning center is connected to the communication device of the mobile communication network to which it belongs: the requesting positioning center 301 is connected to the communication device 302 of the mobile communication network to which it belongs, the home positioning center 303 is connected to the communication device 304 of the mobile communication network to which it belongs, and the location is located The center 305 is connected to the communication device 306 of the mobile communication network to which it belongs. The connection method between the positioning centers may be the connection method of the existing positioning center, and the connection method between the positioning center and the communication device of the mobile communication network may also be the connection method of the existing positioning center and the communication device. The communication device described above may be a mobile switching center (MSC), One of the devices such as HLR, HSS, service control point (SCP), and privacy archive register (PPR) may also be any combination.

According to the networking method described above, only one link is required for the network connection between the request place, the home place, and the location, and the target UE 108 can roam between different positioning systems, and the positioning systems no longer have to be the same. Positioning systems in standard mobile communication networks have greatly simplified the structure of mobile communication networks.

FIG. 4 is a flowchart of positioning in the present invention. As shown in FIG. 4, the process of positioning the target UE includes the following steps:

Steps 401 to 402: The requesting positioning center receives the LCS client's target UE. After the positioning request, it interacts with the communication device in the mobile communication network to which the target UE belongs to find the target UE's home location center and the current location. Position the center. The communication device belongs to the same mobile communication network as the requested location center and is connected to the requested location center.

The process of interaction between the requesting positioning center and the communication device in the mobile communication network to which the requesting positioning center belongs may be as follows: The requesting positioning center provides the target UE identification to the communication device in the mobile communication network to which the requesting positioning center belongs, and the communication device locates the requested location according to the target UE identification The center provides address information of the home location center of the target UE and the current location center, and the requested location center locates the home location center and location based on the address list stored by the center and the address information provided by the requested location center. Position the center. If the communication device cannot provide the address location information of the target UE's home location center and the current location center to the requested location center, it can further interact with other communication devices to obtain the address of the home location center and the location center. The information is then provided to the requesting positioning center. The other communication devices referred to herein may be communication devices in a mobile communication network and the communication devices belonging to different communication networks.

Steps 403 to 405: The requested location center is assigned to the home location center and location. The location center sends a positioning request. After receiving the positioning request, the home location center and the local location center each interact with the communication device in the mobile communication network to which they belong. Between the home location center and the home location center, the home location center or the location The positioning center and the requested location can also interact with each other to obtain the relevant data needed to calculate the location information of the target UE, such as ephemeris in satellite positioning, etc., and finally obtain the detailed location information of the target UE. The geolocation center provides the detailed location information of the target UE to the LCS client.

Because the specific positioning process of the target UE is exactly the same as the prior art, the process of locating the target UE is not described in detail here.

In addition, the requested positioning center may only find the current positioning center where the target UE is currently located. The subsequent processing is as follows: The requested positioning center sends a positioning request to the local positioning center, and after receiving the positioning request, the local positioning center moves with its own location. The communication equipment in the communication network interacts, and the local positioning center may also interact with the requested positioning center or the home positioning center to obtain the relevant data required for positioning the target UE.

The above-mentioned requested location center, home location center, and local location center may be different positioning centers, or two or three of them may be the same positioning center.

In short, the above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims

Claim

1. A system for implementing positioning, characterized in that the system includes: more than one positioning center having an address resolution function and one or more communication devices,

The positioning center is connected to one or more communication devices in the mobile communication network to which the positioning center belongs,

The positioning centers are connected.

2. A method for implementing positioning, which is characterized in that the method includes the following steps:

A. The requesting local positioning center receives the positioning request and finds the current location of the target UE. The local positioning center;

3. The method according to claim 2, wherein the requesting positioning center realizes, in step A, finding the location center of the target UE by interacting with a communication device in the mobile communication network to which the positioning center belongs.

4. The method according to claim 3, wherein:

The requesting positioning center communicates with a communication device in a mobile communication network to which the requesting positioning center includes: The requesting positioning center provides a target UE identification to a communication device in the mobile communication network to which the requesting positioning center belongs, and the communication device provides the request to the request according to the target UE identification. The geolocation center provides address information of the location location center where the target UE is currently located;

The requested positioning center finds the location center where the target UE is currently located according to the address information.

5. The method according to claim 4, wherein the requested location center finds the location where the target UE is currently located according to the address information is: the requested location center according to the stored address list and the received address Information finds the current location of the target UE ' Location center.

6. The method according to claim 4, wherein before the providing the address information of the location center where the target UE is currently located to the requested location center, further comprising: the communication device interacting with other communication devices, Obtain the address information of the location center where the target UE is currently located.

7. The method according to claim 2, wherein the acquiring the location information of the target UE in step B comprises: after receiving a positioning request, the local positioning center interacts with a communication device of a mobile communication network to which the local positioning center belongs to obtain a calculation Relevant data required for target UE location information.

8. The method according to claim 7, wherein before the acquiring the relevant data required for calculating the location information of the target UE, the method further comprises: interacting with the requested location center.

9. The method according to claim 2, wherein the step A further comprises: finding a home location center of the target UE.

10. The method according to claim 9, wherein the step B further comprises: requesting a positioning center to send a positioning request to the home positioning center.

11. The method according to claim 2, wherein after step B, the method further comprises: requesting a positioning center to provide an LCS client with the target UE location information.