CN100352305C - Positioning method based on radio small zone parameter - Google Patents
Positioning method based on radio small zone parameter Download PDFInfo
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- CN100352305C CN100352305C CNB031470130A CN03147013A CN100352305C CN 100352305 C CN100352305 C CN 100352305C CN B031470130 A CNB031470130 A CN B031470130A CN 03147013 A CN03147013 A CN 03147013A CN 100352305 C CN100352305 C CN 100352305C
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- portable terminal
- location
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- position determining
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Abstract
The present invention discloses a positioning method based on wireless sub-zone parameters, which comprises the following steps: a mobile positioning center receives positioning requests comprising wireless sub-zone parameters carried by positioning request messages originated by mobile terminals; the mobile positioning center selects and sends positioning requests to corresponding positioning entities; positioning message interaction is carried out between the positioning entities and the mobile terminals, and the position information of the mobile terminals is calculated; the positioning entities send the position information of the mobile terminals to the mobile positioning center. The technical scheme of the present invention causes the current positions of mobile terminals to be within the coverage range of selected positioning entity GPS satellite data and greatly enhances positioning precision and successful rate.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the realization of positioning service.
Background technology
Positioning service refers to the position that obtains portable terminal/portable terminal (Mobile station, i.e. MS) in mobile communcations system by wireless location technology, and provides corresponding service based on the position of portable terminal.The main application of positioning service comprises: public safety urgent call, network optimization charging, value-added service or the like.
Fig. 1 has described the network structure based on the navigation system in the mobile communcations system on portable terminal plane.Wherein, navigation system comprises traditional network entity and the entity that increases newly.The former mainly comprises portable terminal, mobile switching centre and attaching position register, and the latter mainly comprises mobile positioning center, position determining entity and location services clients machine etc.
Portable terminal is the portable terminal end communication equipment with positioning service function, and major function provides the relevant metrical information in location of this portable terminal.Simultaneously, the application of finishing the part positioning service realizes.
Mobile positioning center is the kernel entity that positioning service realizes.Major function is the control position fixing process, with each entity interaction, and storage and the positional information etc. of portable terminal is provided.
The function of position determining entity mainly is that the information that portable terminal is delivered to network side is handled, thereby calculates the positional information of portable terminal.
The location services clients machine is a service application entity.It obtains the positional information of portable terminal by mobile positioning center, provides different location services according to location information of mobile terminal again.This entity is in charge of by positioning service provider.
In above-mentioned fixer network based on the portable terminal plane, portable terminal, mobile positioning center, position determining entity and location services clients machine are to connect by TCP/IP (Transfer Control Protocol/InternetProtocol, that is TCP) network.Certainly, portable terminal, mobile positioning center, position determining entity and location services clients machine also can be connected by existing circuit-switched network.Communication between mobile positioning center and mobile switching centre, the attaching position register is undertaken by the Signaling System Number 7 net.During physics realization, two or more entities in the network configuration can be merged into a physical entity.
In CDMA (Code Division Multiple Access, i.e. code division multiple access) wireless network, location services system can exist a plurality of mobile positioning centers and a plurality of position determining entity in network.When realizing positioning service, in the time of especially will calculating the positional information of portable terminal, will face in the selection of position determining entity the existing method local position determining entity of general direct selection or select position determining entity to calculate the way of the positional information of portable terminal at random.Described local position determining entity is that position determining entity and the mobile positioning center of portable terminal under the ground of opening an account is generally one-to-one relationship.Existing localization method can be with reference to CHINAUNICOM's " plane relevant device specification requirement of 800MHz CDMA digital mobile cellular telecommunication net positioning service portable terminal " and CHINAUNICOM's " specification requirement of 800MHz CDMA digital mobile cellular telecommunication net MAP "
The shortcoming of existing way is: the mobile communication base station data that generally need in the position determining entity to preserve the actual location of portable terminal can accurately be located portable terminal, and when using local position determining entity, portable terminal has roamed into the other places probably, may do not have nonlocal base station in the local position determining entity this moment, especially roam on-site base station data, thereby cause the location failure.The GPS of position determining entity (GlobalPositioning System, be GPS (Global Position System)) satellite with reference to the receiving equipment coverage generally about 600 kilometers, if way according to above-mentioned traditional selection position determining entity, the position that might cause the current actual place of portable terminal not at the gps satellite of selecteed local position determining entity with reference to the receiving equipment coverage, and cause that positioning accuracy reduces, even location failure.And select the method for local position determining entity, bigger to the network design difficulty, network configuration is dumb, and many cover mobile positioning centers and position determining entity need be set in network, and cost is higher.The selection mode of hence one can see that existing position determining entity has its imperfection part.
Summary of the invention
Thereby technical problem to be solved by this invention is to select imperfection to cause the technical problem that positioning accuracy reduces in order to overcome when realizing the location in the existing mobile communication navigation system position determining entity.
The technical scheme that realizes technical problem to be solved by this invention and take is summarized as follows:
A kind of localization method based on the wireless area parameter is provided, comprises the steps:
(1) mobile positioning center receives Location Request, comprises the wireless area parameter of carrying in the portable terminal initiation locating request message in the described Location Request;
(2) mobile positioning center is selected to send Location Request to corresponding positioning entity;
(3) position interacting message between described position determining entity and the portable terminal, calculate the positional information of described portable terminal;
(4) position determining entity sends the positional information of described portable terminal to mobile positioning center.
Further, the wireless area parameter comprises system identification number, network identification mark and Base Station Identification.Adopt technical solution of the present invention, by in position fixing process, selecting corresponding positioning entity, can guarantee that position determining entity provides the base station information of portable terminal current location base station, the current position of portable terminal is in the coverage of position determining entity gps satellite data.Make locating accuracy and success rate strengthen greatly.Wireless area parameter by the portable terminal transmission, can select suitable position determining entity to position on the one hand, thereby improve locating accuracy and success rate, also can increase on the other hand user's positioned area is limited, limited subscriber positions in some zone, to increase professional flexibility.
Description of drawings
Fig. 1 is the schematic network structure of the positioning service based on the portable terminal plane of the present invention;
Fig. 2 shows the schematic flow sheet of localization method of the present invention;
Fig. 3 shows the positioning flow schematic diagram of a kind of execution mode of localization method of the present invention;
Fig. 4 shows the positioning flow schematic diagram of the another kind of execution mode of localization method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, illustrate the specific embodiment of the present invention.
In the present invention, the localization method based on the wireless area parameter that is provided with reference to accompanying drawing 2, mainly comprises the step that following order is carried out:
Mobile positioning center receives Location Request, comprises the wireless area parameter of carrying in the portable terminal initiation locating request message in the described Location Request;
Mobile positioning center is selected to send Location Request to corresponding positioning entity;
Position interacting message between described position determining entity and the portable terminal, calculate the positional information of described portable terminal;
Position determining entity sends the step of the positional information of described portable terminal to mobile positioning center.
First kind of embodiment of the present invention at first is described.According to Fig. 3, show positioning flow of initiatively initiating request for location services of the present invention by portable terminal, this flow process is based on that WAP (WirelessApplication Protocol, i.e. WAP (wireless application protocol)) uses.Its concrete implementation step is as follows:
Execution in step 5.1, portable terminal inserts the location services clients machine by the WAP mode, sends service request;
Execution in step 5.2, the location services clients machine sends Location Request to mobile positioning center.
Execution in step 5.3, the location services clients machine returns request-reply by WAP;
Execution in step 5.4, mobile positioning center sends authentication message to user/location services clients machine data storehouse, checks whether initiation located subscriber and location services clients machine are authorized to;
Execution in step 5.5, authenticating result is returned to mobile positioning center in user/location services clients machine data storehouse.Authenticating result should comprise following information: whether location services clients machine and portable terminal are contracted user, mobile terminal identification and stationkeeping ability, whether allow to be initiated location services clients machine location of asking etc.User/location services clients machine data storehouse is the part of mobile positioning center, and this processing process is undertaken by internal interface;
Execution in step 5.6, portable terminal is initiated Location Request to mobile positioning center, comprise the wireless area parameter that described portable terminal carries in the Location Request that described portable terminal sends, wireless area information comprises system identification number, network identification mark and Base Station Identification.
Execution in step 5.7, mobile positioning center are selected corresponding positioning entity by the configuration relation of above-mentioned wireless area information and position determining entity, use the geographical position request message selecteed to position determining entity transmission Location Request then.The configuration relation of described wireless area information and position determining entity can be a mapping table about wireless area information and position determining entity sign of preserving at mobile positioning center, by described mapping table, make the current position of portable terminal in the coverage of the gps satellite data of selected position determining entity.General selection, wireless area information and position determining entity are designated many-to-one corresponding relation, and promptly a position determining entity can correspond to a plurality of wireless areas.For the situation of searching, be provided with a default position determining entity, to guarantee finishing of positioning service less than corresponding relation;
This step can increase the restriction of user's positioned area, and limited subscriber positions in some zone.
Execution in step 5.8, mobile positioning center sends location response to MS, activates portable terminal and initiates the positioning interaction session;
Execution in step 5.9, the localization message between position determining entity and the portable terminal is mutual, carries out the calculating of mobile terminal locations.
Execution in step 5.10, finish the location, and position determining entity uses the geographical position request response to send positioning result to mobile positioning center, and mobile positioning center is stored described mobile phone users current location information;
Execution in step 5.11, mobile positioning center gives the location professional client computer by returning location information of mobile terminal;
Execution in step 5.12, portable terminal sends service request by WAP to the location services clients machine;
Execution in step 5.13, the location services clients machine returns information on services by WAP and gives portable terminal, for portable terminal provides service.Finish.
Further, another kind of embodiment of the present invention is described.According to Fig. 4, show another kind of the present invention and initiatively initiate the positioning flow of locating by portable terminal, this flow process is based on the portable terminal built-in application.Its concrete implementation step is as follows:
Execution in step 6.1, portable terminal is initiated Location Request to mobile positioning center.Comprise the wireless area parameter information that described portable terminal carries in the Location Request of described transmission, described wireless area information comprises system identification number, network identification mark and Base Station Identification.Execution in step 6.2, mobile positioning center sends authentication message to described mobile phone users/roaming place mobile positioning center address database, checks whether initiation located subscriber and corresponding mobile terminal TSR are authorized to;
Execution in step 6.3 is returned authenticating result with portable terminal family/roaming place mobile positioning center address database to mobile positioning center.Authenticating result should comprise following information: whether location services clients machine and portable terminal are contracted user, mobile terminal identification and stationkeeping ability, whether allow to be initiated location services clients machine location of asking etc.
Execution in step 6.4, mobile positioning center are selected corresponding positioning entity by the configuration relation of above-mentioned wireless area information and position determining entity, use the geographical position request message selecteed to position determining entity transmission Location Request then.The configuration relation of described wireless area information and position determining entity can be a mapping table about wireless area information and position determining entity sign of preserving at mobile positioning center, by described mapping table, make the current position of portable terminal in the coverage of the gps satellite data of selected position determining entity.General selection, wireless area information and position determining entity are designated many-to-one corresponding relation, and promptly a position determining entity can correspond to a plurality of wireless areas.Wireless area information comprises system identification number, network identification mark and Base Station Identification, can find the corresponding positioning entity sign for the situation of searching by system identification number, network identification mark and Base Station Identification less than corresponding relation, be provided with a default position determining entity, to guarantee finishing of positioning service;
This step can increase the restriction of user's positioned area, positions in some zone with limited subscriber.
Execution in step 6.5, mobile positioning center sends location response to portable terminal, activates portable terminal and initiates the positioning interaction session.
Execution in step 6.6, the localization message between position determining entity and the portable terminal is mutual, carries out the calculating of location information of mobile terminal.
Execution in step 6.7, position determining entity use geographical position request response to mobile positioning center restoring to normal position result.
According to above-mentioned two embodiments as can be known, send the wireless area information of its corresponding roaming place, and then portable terminal is carried out the approximate location scope definition, select position determining entity by these information by portable terminal.And select position determining entity by the user roaming place, can reduce the network design difficulty, reduce the number that is provided with of mobile positioning center and position determining entity, reduce cost, increase the flexibility on the network configuration, also reduce the positioning accuracy that causes because base station data disappearance or gps satellite reference signal can't cover and reduce.The technical scheme of invention is except implementing in the navigation system based on packet network, also can in fixer network, implement based on Signaling System Number 7, not limited by concrete network environment, can in CDMA, GSM (Global System for Mobile communications, i.e. gsm) or WCDMA mobile communcations systems such as (Wideband Code Division Multiple Access are a wideband CDMA system), implement.
Although the disclosed localization method that relates to based on the wireless area parameter has been carried out special description with reference to embodiment, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out all conspicuous modification of form and details to it.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (8)
1, based on the localization method of wireless area parameter, it is characterized in that, comprise the steps:
(1) mobile positioning center receives Location Request, comprises in the described Location Request that portable terminal initiates the wireless area parameter of carrying in the locating request message, and described wireless area parameter comprises system identification number, network identification mark and Base Station Identification;
(2) mobile positioning center is selected corresponding positioning entity by the configuration relation of described wireless area parameter and position determining entity, and sends Location Request to selecteed position determining entity;
(3) position interacting message between described position determining entity and the portable terminal, calculate the positional information of described portable terminal;
(4) position determining entity sends the positional information of described portable terminal to mobile positioning center.
2, the localization method based on the wireless area parameter according to claim 1 is characterized in that in the step (1) further comprising the steps of:
(1.1) portable terminal inserts the location services clients machine by the WAP mode, and sends request for location services;
(1.2) the location services clients machine sends Location Request to mobile positioning center;
(1.3) the location services clients machine returns request-reply by WAP;
(1.4) portable terminal is initiated Location Request to mobile positioning center, comprises the wireless area parameter that described portable terminal carries in described Location Request;
And, further comprising the steps of in the step (4):
(4.1) mobile positioning center storage destination mobile terminal current location information;
(4.2) mobile positioning center returns location information of mobile terminal to the professional client computer in location;
(4.3) portable terminal sends request for location services by WAP to the location services clients machine;
(4.4) the location services clients machine is given portable terminal by WAP mode restoring to normal position information on services.
3, the localization method based on the wireless area parameter according to claim 1 is characterized in that in the step (1) further comprising the steps of:
Portable terminal is initiated Location Request to mobile positioning center, comprises the wireless area parameter that described portable terminal carries in the described Location Request.
4, the localization method based on the wireless area parameter according to claim 1 is characterized in that step (1) comprises that also mobile positioning center carries out the step of authentication to location services clients machine and described portable terminal.
5, according to the described localization method of arbitrary claim in the claim 1 to 4, it is characterized in that based on the wireless area parameter, further comprising the steps of in the step (1):
Judge the step of described portable terminal positioned area restriction.
6,, it is characterized in that described configuration relation makes the current position of described portable terminal in the coverage of the gps satellite data of selected position determining entity according to the described localization method of arbitrary claim in the claim 1 to 4 based on the wireless area parameter.
7, according to the described localization method of claim 6, it is characterized in that in the described configuration relation, make a position determining entity correspond to a plurality of wireless areas based on the wireless area parameter.
8, the localization method based on the wireless area parameter according to claim 6, it is characterized in that also comprising when described wireless area parameter and position determining entity do not have configuration relation the time, be provided with the step of a default position determining entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031470130A CN100352305C (en) | 2003-09-27 | 2003-09-27 | Positioning method based on radio small zone parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031470130A CN100352305C (en) | 2003-09-27 | 2003-09-27 | Positioning method based on radio small zone parameter |
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| CN1602102A CN1602102A (en) | 2005-03-30 |
| CN100352305C true CN100352305C (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031470130A Expired - Lifetime CN100352305C (en) | 2003-09-27 | 2003-09-27 | Positioning method based on radio small zone parameter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988713B (en) * | 2005-12-22 | 2010-06-09 | 中兴通讯股份有限公司 | Switching method for positioning entity |
| US8391894B2 (en) * | 2006-06-26 | 2013-03-05 | Intel Corporation | Methods and apparatus for location based services in wireless networks |
| CN100584095C (en) * | 2007-02-02 | 2010-01-20 | 华为技术有限公司 | Method and system for positioning mobile terminal |
| CN101600149B (en) * | 2009-06-01 | 2012-05-09 | 中兴通讯股份有限公司 | Obtaining and locating method, locating service device and system of subdistrict position |
| CN104080078B (en) * | 2013-03-26 | 2019-05-28 | 百度在线网络技术（北京）有限公司 | Base station positioning method and equipment |
Citations (2)
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|---|---|---|---|---|
| CN1212802A (en) * | 1996-03-05 | 1999-03-31 | 松下电器产业株式会社 | System for detecting positional information |
| CN1379861A (en) * | 1999-07-12 | 2002-11-13 | 鹰眼公司 | Fast acquisition position reporting system |
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2003
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212802A (en) * | 1996-03-05 | 1999-03-31 | 松下电器产业株式会社 | System for detecting positional information |
| CN1379861A (en) * | 1999-07-12 | 2002-11-13 | 鹰眼公司 | Fast acquisition position reporting system |
Non-Patent Citations (4)
| Title |
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| cdma定位业务探讨 叶银法.广东通信技术，第22卷第8期 2002 * |
| CDMA无线定位业务及其实现 罗圣美，邓芳伟，王炜.电信技术 2002 * |
| CDMA无线定位技术与组网方案的研究 杨宁，常永宇.现代电信科技，第7卷 2003 * |
| CEMA定位业务探讨 叶银法.广东通信技术，第22卷第8期 2002 * |
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