CN101860791B - Realizing method for positioning user terminal and related equipment - Google Patents

Abstract

The embodiment of the present invention relates to the field of communication technology, and discloses a method and related equipment for locating a user terminal. The method includes: the positioning server receives a request message for locating a user terminal sent by a monitoring center; The identifier of the access point device; the location information of the access point device corresponding to the identifier of the access point device is acquired from the preset first mapping table, and the first mapping table stores the identifier of the access point device and the location information of the access point device Correspondence of location information; sending a response message for locating the user terminal to the monitoring center, the message carrying the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal. In the embodiment of the present invention, the network device does not need to be equipped with a global positioning system module, nor does it need to calculate a large amount of data, which has the advantages of simple implementation and low cost.

Description

Implementation method and related equipment for locating user terminal

technical field

The present invention relates to the field of communication technology, in particular to a method for realizing positioning of a user terminal and related equipment.

Background technique

Access point equipment (AP, Access Point) is a newly developed type of base station, which is suitable for small-scale areas such as homes and offices, and mainly solves coverage and capacity issues. At present, the mainstream architecture of the AP network is as follows: a core network (CN, Core Network) is deployed on the entire network, the core network serves at least one access gateway (AG, access gateway), one AG serves at least one AP, and one AP serves At least one user terminal (UE, User Equipment).

The positioning service for UE is a very attractive value-added service in the field of mobile communication, and it is also one of the most promising 3G value-added services in the industry. It is very important for enriching the wireless data service market and increasing the operating income of operators. At present, the method of locating the UE mainly used in the mobile communication system is as follows: integrate the Global Positioning System (GPS, Global Positioning System) module on the base station, and obtain the round-trip time delay (RTT, Round Trip Time) between the UE and the three base stations respectively , and the latitude and longitude information of the three base stations, and then calculate the latitude and longitude information of the UE according to the acquired latitude and longitude information and the RTT.

During the research and practice of the prior art, the inventors of the present invention found at least the following disadvantages: if the AP is to be able to locate the UE, it is necessary to integrate a GPS module in the AP, and the AP needs to calculate a large amount of data, resulting in the AP The cost is relatively large.

Contents of the invention

Embodiments of the present invention provide a method for realizing locating a user terminal and related equipment.

An embodiment of the present invention provides a method for realizing locating a user terminal, including: the locating server receives a request message for locating a user terminal sent by the monitoring center; Obtain the location information of the access point device corresponding to the identifier of the access point device in the first mapping table provided, and the first mapping table stores the correspondence between the identifier of the access point device and the location information of the access point device; A response message for locating the user terminal is sent to the monitoring center, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

An embodiment of the present invention provides a method for locating a user terminal, including: the access point device receives a request message for locating the user terminal sent by the monitoring center; the access point device obtains the location information of the access point device; The monitoring center sends a response message for locating the user terminal, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

An embodiment of the present invention provides a positioning server, including: a receiving module, configured to receive a request message for locating a user terminal sent by a monitoring center; a first obtaining module, configured to obtain an identifier of an access point device where a user terminal that needs to be positioned is located; The second acquiring module is configured to acquire the location information of the access point device corresponding to the identifier of the access point device from the first mapping table, and the first mapping table stores the identifier of the access point device and the location information of the access point device The corresponding relationship; the sending module is used to send a response message for positioning the user terminal to the monitoring center, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

An embodiment of the present invention provides an access point device, including: a receiving module, configured to receive a request message for positioning a user terminal sent by a monitoring center; a third obtaining module, configured to obtain location information of an access point device; a sending module, It is used to send a response message for locating the user terminal to the monitoring center, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

It can be seen from the above technical solutions that, compared with the prior art, the embodiments of the present invention include the following beneficial effects:

Since the AP and the UE are basically within the line-of-sight range, the embodiments of the present invention directly use the location information of the AP where the UE is located as the location information of the UE. Compared with the prior art, the AP in the embodiment of the present invention does not need to set up GPS, and does not need to calculate a large amount of data. It only needs to summarize the corresponding relationship between the identification of the AP and the location information of the AP on the positioning server in advance, and the positioning server obtains the required The identification of the AP where the user terminal is located, according to the identification to obtain the location information of the AP, and inform the monitoring center; or, the monitoring center sends a request message for locating the user terminal to the AP where the UE needs to be located, and the AP where the UE is located obtains The location information of the AP can only be informed to the monitoring center, which has the advantages of simple implementation and low cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic flowchart of an embodiment of an implementation method for locating a user terminal in an embodiment of the present invention;

Fig. 2 is a schematic diagram of a specific application scenario of the embodiment shown in Fig. 1;

FIG. 3 is a schematic flowchart of another embodiment of a method for implementing a user terminal location in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a specific application scenario of the embodiment shown in FIG. 3;

FIG. 5 is a schematic diagram of an embodiment of a method for obtaining AP latitude and longitude information by an AP in the embodiment shown in FIG. 4;

Fig. 6 is a schematic diagram of an embodiment of a positioning server in an embodiment of the present invention;

Fig. 7 is a schematic diagram of an embodiment of an access point device in an embodiment of the present invention;

FIG. 8 is a schematic diagram of an embodiment of a system for implementing user terminal positioning in an embodiment of the present invention;

Fig. 9 is a schematic diagram of another embodiment of a system for locating a user terminal in an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide an implementation method for locating a user terminal, and related equipment and systems. Each will be described in detail below.

Referring to FIG. 1, an embodiment of a method for locating a user terminal in an embodiment of the present invention includes:

101. The positioning server receives a request message for locating the user terminal sent by the monitoring center;

The embodiment of the present invention can be applied to Universal Mobile Telecommunications (UMTS, Universal MobileTelecommunication System) AP system, Long Term Evolution (LTE, Long Term Evolution) AP system, Global System for Mobile Communications (GSM, Global System for Mobile Communications) AP system, global microwave Interoperability access (WiMax, Worldwide Interoperability for MicrowaveAccess) AP system, Code Division Multiple Access (CDMA, Code Division Multiple Access) AP system.

In this embodiment, a positioning server can be added in the existing AP network, and there is a communication interface between the positioning server and the monitoring center. When the monitoring center needs to locate the UE, it sends a request message for locating the UE to the positioning server.

102. The positioning server acquires the identifier of the access point device where the user terminal to be positioned is located;

In this embodiment, the identifier of the access point device may be an AP number (ID, Identity), a service area identifier (SAI, Service Area Identifier) or a cell ID (Cell ID, Cell Identity).

Before the positioning server receives the request message for locating the user terminal, the positioning server may first obtain the correspondence between the identification code of the user terminal to be located and the identifier of the access point device where the user terminal is located, and store the correspondence in the second In the mapping table, the identification code of the user terminal may be an International Mobile Subscriber Identity (IMSI, international mobile subscriber identity) or an International Mobile Subscriber Number (MSISDN, Mobile Station Integrated Services Digital Network). For example, when a UE that needs to be located tries to camp in the AP, the UE will initiate operations such as a location area update (LAU, Location Area Update) or a routing area update (RAU, Route Area Update), and the AG can carry the LAU/RAU message The IMSI of the UE is resolved, and the MSISDN corresponding to the IMSI can be obtained, and the SAI or Cell ID of the AP can also be obtained according to the ID of the AP where the UE resides. Therefore, the AG can obtain the identification code of the user terminal that needs to be located, that is, The corresponding relationship between the IMSI or MSISDN of the UE and the identifier of the access point device where the user terminal is located, that is, the ID, SAI or Cell ID of the AP, and when the AG forwards the LAU/RAU to the CN, it can also transfer the corresponding relationship sent to the location server. In addition, the AG may also acquire the UE's IMSI from other existing operations, such as the UE call setup request operation.

In the above, after the AG obtains the IMSI, it can obtain the MSISDN from the core network device. Similarly, the corresponding relationship between the AP ID, SAI or Cell ID can be saved in the core network device. After the AG obtains the AP ID, it can Obtain the SAI and Cell ID of the AP from the core network device. After the monitoring center obtains the SAI of the AP where the UE is located from the CN according to the IMSI of the UE, it can obtain the ID and Cell ID of the AP from the core network equipment according to the SAI.

In the case that the positioning server stores the second mapping table, the request message for positioning the user terminal issued by the monitoring center may include the identification code of the user terminal to be located, and the positioning server may obtain the user terminal to be located from the second mapping table. The identifier of the access point device corresponding to the identification code of the terminal.

It can be understood that the monitoring center can also obtain the identity of the access point device where the UE is located according to the identification code of the UE that needs to be located. For example, the SAI of the AP where the UE is located can be obtained from the CN according to the IMSI of the UE, and the required The identifier of the access point device where the user terminal to be located is carried in the request message for locating the user terminal. In this case, the location server can directly obtain the identifier of the access point device where the user terminal to be located is located from the request message.

103. The positioning server acquires the location information of the access point device corresponding to the identifier of the access point device from the preset first mapping table, and the first mapping table stores the identifier of the access point device and the location information of the access point device corresponding relationship;

The location information of the access point device may be the latitude and longitude information of the AP, or the address information of the AP (for example, No. 44, Chang'an Road).

When the AP is powered on, it will assign parameters such as ID (or the ID of the AP device itself), SAI, and Cell ID. The positioning server summarizes the correspondence between the identification of all APs in the network and the location information of the AP. The identification of the AP can be AP ID, SAI or Cell ID.

104. The positioning server sends a response message for locating the user terminal to the monitoring center, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

After obtaining the identification of the AP where the user terminal to be located is located, the positioning server can obtain the location information of the AP according to the identification, and inform the monitoring center of the location information. In the AP network, the coverage of the AP is small, so the AP and the UE are basically within the line-of-sight range. Therefore, in this embodiment, the monitoring center can directly use the location information of the AP where the UE is located as the location information of the UE.

Since the AP and the UE are basically within the line-of-sight range, this embodiment directly uses the location information of the AP where the UE is located as the location information of the UE. Compared with the prior art, the AP of this embodiment does not need to be equipped with GPS, nor does it need to calculate a large amount of data. It only needs to summarize the corresponding relationship between the identification of the AP and the location information of the AP on the positioning server in advance, and the positioning server obtains the location information required The ID of the AP where the user terminal is located, and obtain the location information of the AP according to the ID, and inform the monitoring center, which has the advantages of simple implementation and low cost. Moreover, in the prior art, only the longitude and latitude information of the AP can be obtained, but in this embodiment, the address information of the AP can also be obtained, so that the user's address information can be directly determined.

For ease of understanding, please refer to FIG. 2, a specific application scenario of the embodiment shown in FIG. 1 is described in detail below, and the process of the specific application scenario may include:

The lines with arrows in FIG. 2 are used to describe the interaction relationship between entities for the following operations, and do not represent the connection relationship between entities.

201. When the AP opens an account, the manager summarizes the address information, ID, SAI and Cell ID of the AP to Table 1 of the positioning server:

AP ID SAI Cell ID Address AP ID1 SAI1 Cell ID1 Address1 AP ID2 SAI2 Cell ID2 Address2 ... ... ... ...

Table 1

It can be understood that step 201 is a preset step, and it is not necessary to execute this step during the actual implementation of the technical solution of the present invention.

202. When the user terminal UE tries to camp in the access point device AP, the UE sends a LAU message to the AP, and the AP forwards the LAU message to the access gateway AG. The message includes the IMSI of the UE, and the AG forwards the LAU message to the core network deviceCN;

203. After the AG receives the LAU message sent by the AP, it parses out the IMSI in the LAU message, and sends the corresponding relationship between the IMSI and the ID of the AP that sent the LAU message to the positioning server, and the positioning server saves the corresponding relationship in Table 2:

IMSI AP ID IMSI1 APID1 IMSI2 APID1 ... ...

Table 2

Since the UE will migrate between different APs, the corresponding relationship between the IMSI of the UE and the ID of the AP where the UE is located will change accordingly. Therefore, only the newly obtained IMSI of the UE and the ID of the AP where the UE is located may be saved in Table 2. Correspondence.

It should be noted here that the AG can obtain the MSISDN corresponding to the IMSI from the core network device according to the IMSI of the UE, and can also obtain the SAI or Cell ID of the AP from the core network device according to the ID of the AP where the UE resides. Therefore, Table 2 can be Including the corresponding relationship between the UE's IMSI or MSISDN and the AP's ID, SAI or Cell ID. It can be understood that the corresponding relationship between the UE's IMSI and the MSISDN can also be preset in the AG, and the AG can obtain the MSISDN corresponding to the IMSI from itself according to the UE's IMSI.

204. When the monitoring center needs to obtain the location information of a certain UE (for example, the IMSI of the UE is IMSI1), the monitoring center sends a request message for locating the user terminal to the positioning server, and the request message includes the IMSI1 of the UE;

205. The positioning server obtains the identifier of the AP where the UE is located from Table 2 according to the IMSI1, that is, AP ID1, obtains the address Address1 corresponding to the AP ID1 from Table 1, and returns a response message for positioning the user terminal to the monitoring center. The response message includes There is address information of the AP where the UE is located, that is, Address1, so that the monitoring center can use the address information as the address information of the UE.

The monitoring center uses the address information of the AP where the UE is located as the address information of the UE, so that the address information of the user (such as No. 44, Chang'an Road) can be directly determined; in the prior art, only the latitude and longitude information of the user can be determined, and then according to the latitude and longitude information Determine the specific address information of the user.

In this embodiment, after step 201 is performed, steps 202 and 203 may not be performed, and the monitoring center first obtains the SAI1 corresponding to the IMSI1 of the UE to be located from the CN, and in step 204 sends the SAI1 carrying the SAI1 to the positioning server. In this case, in step 205, the positioning server only needs to obtain the address information corresponding to SAI1 from Table 1, that is, Address1, and send it to the monitoring center.

In the above embodiment, the location information is returned to the monitoring center by the positioning server. It can be understood that the monitoring center can directly send a request message for locating the user terminal to the AP where the UE is located, and the AP returns the location information to the monitoring center. The implementation method of this positioning user terminal will be described in detail.

Referring to Fig. 3, another embodiment of the implementation method for locating the user terminal in the embodiment of the present invention includes:

301. The access point device receives a request message for locating the user terminal sent by the monitoring center;

In this embodiment, when the monitoring center needs to obtain the location information of a certain UE, it can send a request message for locating the user terminal to the CN, and the message carries the IMSI of the UE; the CN can obtain the identifier of the AG where the UE is located according to the IMSI, and Send a request message for locating the user terminal to the AG; the AG can obtain the ID of the AP where the UE is located according to the IMSI, and send a request message for locating the user terminal to the AP.

302. The access point device obtains the location information of the access point device;

After the AP receives the request message for locating the user terminal, step 302 is executed.

In this embodiment, a positioning server can be added in the existing AP network, and there is a communication interface between the positioning server and each AP; For the correspondence relationship of the location information, the identifier of the AP may be the ID, SAI or CellID of the AP. In this case, after the AP obtains the ID of the AP, step 302 may include: the AP sends an access point device location query request message to the positioning server, the message carries the ID of the AP, and the AP's ID is obtained at the positioning server After the corresponding AP location information, the AP receives the access point device location query response message sent by the location server, which carries the location information of the AP, where the location information can be longitude and latitude information or address information.

In the prior art, by integrating GPS modules in the three base stations respectively, the RTT between the UE and the three base stations and the latitude and longitude information of the three base stations can be obtained, and then the latitude and longitude information of the UE can be calculated according to the acquired latitude and longitude information and RTT . Similarly, in this embodiment, it is also possible to obtain the longitude and latitude information of the user terminal and the round-trip time delay between the user terminal and the AP at three different locations by integrating the GPS modules in the three UEs respectively, and according to the longitude and latitude of the user terminal The information and the round-trip time delay obtain the longitude and latitude information of the access point device as the location information of the access point device.

303. The access point device sends a response message for locating the user terminal to the monitoring center, and the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

After the access point device acquires the location information of the access point device, it may return a response message for locating the user terminal to the monitoring center through the AG and CN.

It can be understood that each AP can also obtain the location information of the AP from the positioning server and save it locally when it is powered on. A response message for locating the user terminal based on the location information of the access point device. Therefore, there is no necessary sequence between steps 301 and 302 .

Since the AP and the UE are basically within the line-of-sight range, this embodiment directly uses the location information of the AP where the UE is located as the location information of the UE. Compared with the prior art, the AP of this embodiment does not need to be equipped with GPS, nor does it need to calculate a large amount of data. It only needs to summarize the corresponding relationship between the identification of the AP and the location information of the AP on the positioning server in advance, and the monitoring center will provide the required location information. The AP where the UE is located sends a request message for locating the user terminal, and the AP where the UE is located obtains the location information of the AP and informs the monitoring center, which has the advantages of simple implementation and low cost. Moreover, in the prior art, only the longitude and latitude information of the AP can be obtained, but in this embodiment, the address information of the AP can also be obtained, so that the user's address information can be directly determined.

For ease of understanding, please refer to FIG. 4, a specific application scenario of the embodiment shown in FIG. 3 will be described in detail below, and the process of the specific application scenario may include:

The lines with arrows in FIG. 4 are used to describe the interaction relationship between entities for the following operations, and do not represent the connection relationship between entities.

401. When the AP opens an account, the manager summarizes the address information, ID, SAI, and Cell ID of the AP into Table 1 of the positioning server. For details, please refer to the description of step 201;

It can be understood that step 401 is a preset step, and it is not necessary to execute this step during the actual implementation of the technical solution of the present invention.

402. When the monitoring center needs to obtain the location information of a certain UE (such as the IMSI of the UE is IMSI1), it sends a location query service request message (LCS service request) to the CN, and the message includes the IMSI1 of the UE;

It can be understood that the location query service request message may not carry the IMSI of the UE, but the MSISDN of the UE, and the same is true for the location report control message and the location report message below.

403. The CN obtains the identifier of the AG corresponding to the IMSI1, and sends a location reporting control message (Location Reporting Control) to the AG, and the message includes the IMSI1 of the UE;

A request type Request Type can be added to the Location Reporting Control message in the existing protocol, as shown in the following two tables:

Location Reporting Control:

IE/Group Name Presenee Range IE type and reference Semanticsdeseription Criticality Assigned Criticality Message Type m 9.2.1.1 YES ignore Request Type m 9.2.1.16 YES ignore Vertical Accuracy Code o 9.2.1.46a YES Ignore Response Time o 9.2.1.46b YES Ignore Positioning Priority o 9.2.1.46c YES Ignore Client Type o 9.2.1.46d YES ignore

Request Type:

IE/GroupName Presence Range IE type and reference Semantics description RequestType ＞Event m ENUMERATED(StopChange of service area, Direct, Change of service area,..., Stop Direct) ＞＞Report Area m ENUMERATED(ServiceArea, Geographical Area, Address...) When the Event IE is set to "StopChange of service area" or to "StopDirect", the value of the Report areaIE shall be the same as in the LOCATION REPORTINGCONTROL message that initiated the location reporting. ＞＞Accuracy Code o INTEGER(0..127) The requested accuracy″r″is derived from the″accuracy code″kbyr=10x(1.1 ^k -1). The Accuracy Code IE shall beunderstood as the horizontalaccuracy code.

404. The AG obtains the ID of the AP corresponding to IMSI1, and sends a Location Reporting Control message to the AP;

405. The AP obtains the location information of the AP corresponding to the AP identifier from the location server;

In this embodiment, instead of obtaining the location information of the AP from the positioning server, the AP may obtain the location information of the AP by using the method for obtaining the latitude and longitude information of the AP shown in FIG. 5 .

As shown in Figure 5, the A-GPS function can be integrated on a specific UE. The UE obtains the latitude and longitude information of these three locations at location 1, location 2, and location 3 respectively, and reports them to the AP. The RTT of the UE's three locations.

Specifically, the AP can send the measurement indication message Measurement Control to the UE to instruct the UE to measure and report the current location information of the UE. After the UE obtains the latitude and longitude information using the A-GPS function, it can report the obtained latitude and longitude through the measurement report message Measurement Report At the same time, the AP can obtain the round-trip time delays RTT1, RTT2, and RTT3 between the UE and the AP when the UE is at positions 1, 2, and 3, respectively, by measuring the time difference between the indication message and the measurement report message.

The AP can use RTT to calculate the time TOA for the UE to reach the AP at each location. The specific calculation is as follows:

TOA=RTT/2

Multiply TOA by the speed of light to get the distance from each location to the AP, and then use each location as the center of the circle, and the distance from each location to the AP as the radius to make a circle to get three circles, and the intersection of the three circles is the longitude and latitude range of AP, so Obtain the location information of the AP. It can be understood that as the UE moves, the AP can record multiple locations of the UE and repeatedly correct the latitude and longitude information of the AP. The more locations there are, the more accurate the latitude and longitude information of the AP is.

It is understandable that the AP can also calculate the latitude and longitude information of the AP through the latitude and longitude information of three UEs in different locations, and the RTT between each UE and the AP. precise.

406. The AP returns a location report message (Location Report) to the CN through the AG, and the message carries the location information of the AP;

An Area Identity type can be added to the Location Report message in the existing protocol, as shown in the following two tables:

Location Report:

IE/Group Name Presenee Range IE typeandreference Semantics description Criticality Assigned Criticality Message Type m 9.2.1.1 YES ignore Area Identity o 9.2.3.10 YES ignore Cause o 9.2.1.4 YES ignore Request Type o 9.2.1.16 YES ignore Last KnownService Area o 9.2.3.22 YES ignore Position Data o 9.2.3.27 Optional for UTRAN only. YES ignore Position DataSpecific ToGERAN Iu Mode o 9.2.3.28 Coded as the value part of the Positioning DataIE defined in[34].Optional for GERANIu mode only.Notapplicable forUTRAN. YES ignore AccuracyFulfillmentIndicator o 9.2.3.29 YES ignore

Area Identity:

IE/Group Name Presence Range IE type and reference Semantics description Choice Area Identity ＞SAI 9.2.3.9 ＞＞Geographical Area 9.2.3.11 ＞Address OCTETSTRING(1..255)

407. The CN returns a location query service response message (LCS service response) to the monitoring center, and the message carries the location information of the AP, so that the monitoring center uses the location information of the AP as the location information of the UE.

In this embodiment, the location information of the AP may be the address information of the AP, and the monitoring center uses the address information of the AP where the UE is located as the address information of the UE, so that the user's address information (for example, No. 44, Chang'an Road) can be directly determined; and now In the prior art, only the latitude and longitude information of the user can be determined, and then the specific address information of the user can be determined according to the latitude and longitude information.

The equipment and system in the embodiment of the present invention will be described in detail below.

Referring to Figure 6, an embodiment of the location server in the embodiment of the present invention includes:

A receiving module 601, configured to receive a request message for positioning a user terminal sent by a monitoring center;

The first acquiring module 602 is configured to acquire the identifier of the access point device where the user terminal to be located is located;

The second acquiring module 603 is configured to acquire the location information of the access point device corresponding to the identifier of the access point device from the first mapping table, and the first mapping table stores the identifier of the access point device and the location of the access point device Correspondence of information;

The sending module 604 is configured to send a response message for locating the user terminal to the monitoring center, where the message carries the acquired location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal to be located.

Optionally, the request message for locating the user terminal may include the identifier of the access point device where the user terminal needs to be located, and the first obtaining module 602 may include a second obtaining submodule, configured to obtain the required information from the request message for locating the user terminal. An identifier of the access point device where the located user terminal is located.

Optionally, the positioning server in this embodiment may also include an acquisition and storage module, which is used to obtain the identification code of the user terminal to be located and the interface where the user terminal is located before the receiving module receives the request message for locating the user terminal sent by the monitoring center. In this case, the request message for locating the user terminal includes the identification code of the user terminal to be located, and the first obtaining module 602 can A first obtaining submodule is included, configured to obtain the identifier of the access point device corresponding to the identification code of the user terminal to be located from the second mapping table. Corresponding to this situation, the embodiment of the present invention also provides an embodiment of the access gateway, including:

A message receiving module, configured to receive a location area or routing area update message sent by the access point device, the message carrying the IMSI of the user terminal;

A relationship acquisition module, configured to acquire the correspondence between the identification code of the user terminal and the identifier of the access point device;

The relationship sending module is configured to send the acquired corresponding relationship to the acquisition and storage module of the positioning server. That is to say, the acquiring and saving module of the positioning server can acquire the correspondence relationship between the identification code of the user terminal to be located and the identifier of the access point device where the user terminal is located from the access gateway.

The identification code of the user terminal can be the IMSI or MSISDN of the UE, and the relationship acquisition module can obtain the MSISDN corresponding to the IMSI from the core network device. Similarly, the corresponding relationship between the ID, SAI or Cell ID of the AP can be saved in the core network device, The relationship acquiring module can acquire the SAI and Cell ID of the AP corresponding to the ID of the AP from the core network device.

In this embodiment, the location information of the AP may be the address information of the AP, and the monitoring center uses the address information of the AP where the UE is located as the address information of the UE, so that the user's address information (for example, No. 44, Chang'an Road) can be directly determined; and now In the prior art, only the latitude and longitude information of the user can be determined, and then the specific address information of the user can be determined according to the latitude and longitude information.

Please refer to Figure 7, an embodiment of the access point device in the embodiment of the present invention, including:

A receiving module 701, configured to receive a request message for positioning a user terminal sent by a monitoring center;

A third obtaining module 702, configured to obtain location information of the access point device;

The sending module 703 is configured to send a response message for locating the user terminal to the monitoring center, where the message carries the obtained location information of the access point device, so that the monitoring center uses the location information as the location information of the user terminal.

Optionally, the third obtaining module 702 includes:

The first acquisition unit is configured to acquire the longitude and latitude information of the user terminal and the round-trip time delay between the user terminal and the access point device at three different locations;

The second acquiring unit is configured to acquire the latitude and longitude information of the access point device according to the latitude and longitude information of the user terminal and the round-trip time delay.

Optionally, the third obtaining module 702 includes:

The sending unit is configured to send a location query request message to the positioning server, the message includes the identification of the access point device to be queried, and the positioning server stores the correspondence between the identification of the access point device and the location information of the access point device;

The receiving unit is configured to receive a location query response message sent by the positioning server, the message carrying the location information of the access point device.

In this embodiment, the location information of the AP may be the address information of the AP, and the monitoring center uses the address information of the AP where the UE is located as the address information of the UE, so that the user's address information (for example, No. 44, Chang'an Road) can be directly determined; and now In the prior art, only the latitude and longitude information of the user can be determined, and then the specific address information of the user can be determined according to the latitude and longitude information.

Referring to FIG. 8, an embodiment of a system for locating a user terminal in an embodiment of the present invention includes:

The positioning server 801 is configured to receive a request message for positioning a user terminal sent by the monitoring center; obtain the identifier of the access point device where the user terminal needs to be located; obtain the access point corresponding to the identifier of the access point device from the first mapping table For the location information of the device, the first mapping table stores the correspondence between the identifier of the access point device and the location information of the access point device; a response message for locating the user terminal is sent to the monitoring center, and the message carries the obtained access point device location information;

The monitoring center 802 is configured to send a request message for locating the user terminal to the positioning server, and receive a response message for locating the user terminal sent by the positioning server. location information.

The location information of the access point device may be the latitude and longitude information of the AP, or the address information of the AP (for example, No. 44, Chang'an Road).

Since the AP and the UE are basically within the line-of-sight range, this embodiment directly uses the location information of the AP where the UE is located as the location information of the UE. Compared with the prior art, the AP of this embodiment does not need to be equipped with GPS, nor does it need to calculate a large amount of data. It only needs to summarize the corresponding relationship between the identification of the AP and the location information of the AP on the positioning server in advance, and the positioning server obtains the location information required The ID of the AP where the user terminal is located, and obtain the location information of the AP according to the ID, and inform the monitoring center, which has the advantages of simple implementation and low cost. Moreover, in the prior art, only the latitude and longitude information of the AP can be obtained, but in this embodiment, the address information of the AP can also be obtained.

Referring to FIG. 9, another embodiment of the system for locating the user terminal in the embodiment of the present invention includes:

The monitoring center 901 is configured to send a request message for locating the user terminal to the core network equipment, the message carries the identifier of the user terminal, receives a returned response message for locating the user terminal, and uses the location information of the access point device in the message as Location information of the user terminal that needs to be positioned;

The core network device 902 is configured to receive the request message for positioning the user terminal sent by the monitoring center, obtain the identifier of the access gateway corresponding to the identifier of the user terminal in the message, and forward the request message for locating the user terminal to the access gateway, and receive Access the response message returned by the gateway to locate the user terminal and forward it to the monitoring center;

The access gateway 903 is configured to receive the request message for locating the user terminal sent by the core network device, obtain the identifier of the access point device corresponding to the identifier of the user terminal in the message, and forward the request for locating the user terminal to the access point device message, receiving the response message of locating the user terminal returned by the access point device and forwarding it to the core network device;

The access point device 904 is configured to receive the request message for locating the user terminal sent by the access gateway, acquire the location information of the access point device, and send a response message for locating the user terminal to the access gateway, the message carrying the location information of the access point Device location information.

The location information of the access point device may be the latitude and longitude information of the AP, or the address information of the AP (for example, No. 44, Chang'an Road).

Since the AP and the UE are basically within the line-of-sight range, this embodiment directly uses the location information of the AP where the UE is located as the location information of the UE. Compared with the prior art, the AP of this embodiment does not need to be equipped with GPS, nor does it need to calculate a large amount of data. It only needs to summarize the corresponding relationship between the identification of the AP and the location information of the AP on the positioning server in advance, and the monitoring center will provide the required location information. The AP where the UE is located sends a request message for locating the user terminal, and the AP where the UE is located obtains the location information of the AP and informs the monitoring center, which has the advantages of simple implementation and low cost. Moreover, in the prior art, only the latitude and longitude information of the AP can be obtained, but in this embodiment, the address information of the AP can also be obtained.

Those skilled in the art can understand that the solutions and technical features described in the method embodiments can also be part of the device and system embodiments.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or CD, etc.

The implementation method and related equipment and system for locating user terminals provided by the embodiments of the present invention are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for To help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification It should not be construed as limiting the invention.

Claims (13)

1. the implementation method of a positioning user terminal is characterized in that, comprising:

Location-server receives the request message of the positioning user terminal of Surveillance center's transmission;

Location-server obtains the sign that needs place, located subscriber terminal access point apparatus;

Location-server obtains the positional information of the corresponding access point apparatus of the sign of said access point apparatus from first mapping table that presets, first mapping table is preserved the corresponding relation of positional information of sign and the access point apparatus of access point apparatus; The positional information of said access point apparatus is the address information of access point;

Location-server is to the response message of Surveillance center's transmission positioning user terminal, and the positional information of carrying the access point apparatus that obtains in this message is so that Surveillance center is with the positional information of this positional information as said user terminal.

2. method according to claim 1; It is characterized in that; Receive at said location-server before the request message of the positioning user terminal that Surveillance center sends; Also comprise: location-server obtains the corresponding relation of the sign of the said identification code that needs the located subscriber terminal and this user terminal place access point apparatus, and this corresponding relation is stored in second mapping table;

Comprise the identification code that needs the located subscriber terminal in the request message of said positioning user terminal;

Said location-server obtains the sign that needs place, located subscriber terminal access point apparatus, specifically comprises:

Location-server obtains the sign of the access point apparatus of the identification code correspondence that needs the located subscriber terminal from second mapping table.

3. method according to claim 2 is characterized in that, said location-server obtains the corresponding relation of the sign of the identification code that needs the located subscriber terminal and this user terminal place access point apparatus, specifically comprises:

Location-server receives the said identification code at located subscriber terminal and the corresponding relation that this user terminal belongs to the sign of access point apparatus of needing that IAD sends.

4. method according to claim 1 is characterized in that, the request message of said positioning user terminal comprises the sign that needs place, located subscriber terminal access point apparatus;

Said location-server obtains the sign that needs place, located subscriber terminal access point apparatus, specifically comprises: location-server obtains the sign that needs place, located subscriber terminal access point apparatus from the request message of said positioning user terminal.

5. the implementation method of a positioning user terminal is characterized in that, comprising:

Access point apparatus receives the request message of the positioning user terminal of Surveillance center's transmission;

Access point apparatus obtains the positional information of said access point apparatus; The positional information of said access point apparatus is the address information of access point;

Access point apparatus is to the response message of Surveillance center's transmission positioning user terminal, and the positional information of carrying the access point apparatus that obtains in this message is so that Surveillance center is with the positional information of this positional information as said user terminal.

6. method according to claim 5 is characterized in that, said access point apparatus obtains the positional information of access point apparatus, specifically comprises:

Access point apparatus sends access point apparatus position enquiring request message to location-server; This message comprises the sign of the access point apparatus of needs inquiries, and said positioning server stores has the corresponding relation of positional information of sign and the access point apparatus of access point apparatus;

Access point apparatus receives the access point apparatus position enquiring response message that location-server sends, the positional information of carrying access point apparatus in this message.

7. method according to claim 5 is characterized in that, said positional information is a latitude and longitude information;

Said access point apparatus obtains the positional information of access point apparatus, specifically comprises:

Access point apparatus obtains on three diverse locations, the round-trip delay of the latitude and longitude information of user terminal and user terminal and access point apparatus;

The latitude and longitude information that access point apparatus obtains access point apparatus according to the latitude and longitude information and the round-trip delay of said user terminal.

8. a location-server is characterized in that, comprising:

Receiver module is used to receive the request message of the positioning user terminal that Surveillance center sends;

First acquisition module is used to obtain the sign that needs place, located subscriber terminal access point apparatus;

Second acquisition module is used for obtaining from first mapping table positional information of the corresponding access point apparatus of the sign of said access point apparatus, and first mapping table is preserved the corresponding relation of positional information of sign and the access point apparatus of access point apparatus; The positional information of said access point apparatus is the address information of access point;

Sending module is used for the response message to Surveillance center's transmission positioning user terminal, and the positional information of carrying the access point apparatus that obtains in this message is so that Surveillance center is with the positional information of this positional information as said user terminal.

9. location-server according to claim 8 is characterized in that, comprises the identification code that needs the located subscriber terminal in the request message of said positioning user terminal;

Said location-server also comprises: obtain the preservation module; Be used for before the request message of the positioning user terminal that receiver module reception Surveillance center sends; Obtain the corresponding relation of the sign of the identification code that needs the located subscriber terminal and this user terminal place access point apparatus, and this corresponding relation is stored in second mapping table;

First acquisition module comprises: first obtains submodule, is used for obtaining from second mapping table sign of the access point apparatus of the identification code correspondence that needs the located subscriber terminal.

10. location-server according to claim 8 is characterized in that, the request message of said positioning user terminal comprises the sign that needs place, located subscriber terminal access point apparatus;

First acquisition module comprises: second obtains submodule, is used for obtaining the sign that needs place, located subscriber terminal access point apparatus from the request message of positioning user terminal.

11. an access point apparatus is characterized in that, comprising:

Receiver module is used to receive the request message of the positioning user terminal that Surveillance center sends;

The 3rd acquisition module is used to obtain the positional information of said access point apparatus; The positional information of said access point apparatus is the address information of access point;

Sending module is used for the response message to Surveillance center's transmission positioning user terminal, and the positional information of carrying the access point apparatus that obtains in this message is so that Surveillance center is with the positional information of this positional information as said user terminal.

12. access point apparatus according to claim 11 is characterized in that, the 3rd acquisition module comprises:

Transmitting element is used for sending the position enquiring request message to location-server, and this message comprises the sign of the access point apparatus that needs are inquired about, and said positioning server stores has the corresponding relation of positional information of sign and the access point apparatus of access point apparatus;

Receiving element is used to receive the position enquiring response message that location-server sends, the positional information of carrying access point apparatus in this message.

13. access point apparatus according to claim 11 is characterized in that, said positional information is a latitude and longitude information; The 3rd acquisition module comprises:

First acquiring unit is used to obtain on three diverse locations the round-trip delay of the latitude and longitude information of user terminal and user terminal and access point apparatus;

Second acquisition unit is used for the latitude and longitude information that latitude and longitude information and round-trip delay according to said user terminal obtain access point apparatus.

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