CN101521846B - Method based on WLL (wireless local loop) system to realize locating services and system thereof - Google Patents
Method based on WLL (wireless local loop) system to realize locating services and system thereof Download PDFInfo
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- CN101521846B CN101521846B CN2008100075981A CN200810007598A CN101521846B CN 101521846 B CN101521846 B CN 101521846B CN 2008100075981 A CN2008100075981 A CN 2008100075981A CN 200810007598 A CN200810007598 A CN 200810007598A CN 101521846 B CN101521846 B CN 101521846B
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Abstract
The invention discloses a method based on a WLL (wireless local loop) system to realize locating services and a system thereof. The method comprises the following steps: a mobile locating service platform receiving a location request obtains terminal location information from a VLR (visitor location register) of a base-station controller to which the terminal belongs according to the number of a WLL terminal to be located; the mobile locating service platform selects a corresponding mobile locating device to interact messages with the terminal through inquiring database according to the location information returned by an information processing module so as to realize location calculation; and the mobile locating service platform sends the location result to the location request sender through the information processing module. The invention effectively integrates network elements of a locating service client device, a mobile locating service platform, a mobile locating device, and thelike in the existing mobile communication system with the inherent base-station sub-system and terminal of the WLL system, thus not only realizing the service location of the WLL terminal based on th e WLL system, but also leading the network structure to be simple and clear.
Description
Technical field
The present invention relates to the wireless location technology of the communications field, be specifically related to a kind of method and system of realizing positioning service based on wireless local loop system.
Background technology
Positioning service refers in mobile communication system, the position that obtains MS (MobileStation, portable terminal) by wireless location technology, and provide corresponding service based on the position of MS.By cooperating between MS and the mobile communication network device having realized special portable terminal positioning service.
As shown in Figure 1, in present mobile communication system in order to realize positioning service at MS, relate generally to as the lower part: LCS Client (Location Services Client, location services client), MPC (Mobile Position Center, the mobile location service platform), PDE (Position Determining Entity, position determining entity) and GPS (Global Position System, global positioning system) network element device such as, said network element equipment is respectively by TCP/IP (Transmission Control Protocol/Internet Protocol, TCP) or No. 7 signaling network and MSC (Mobile Switch Center, mobile switching centre) and BSS (Base Station System, base station sub-system) connects, in the reciprocal process of message, finish accurate location to MS.
Wherein, MS is the ustomer premises access equipment of positioning service, and major function provides the relevant metrical information in location, and the application of finishing the part positioning service simultaneously realizes.
MPC is the kernel entity that positioning service realizes, major function is the control position fixing process, and is mutual with other network element devices, and storage and the positional information etc. of portable terminal is provided, MPC also can adopt GMLC (Gateway Mobile Location Center, GMLC) to replace.
The function of PDE mainly is that the information that travelling carriage is delivered to network side is handled, thereby calculates the position of MS, and MS is provided the auxiliary positioning data of location, and PDE also can adopt SMLC (Serving MobileLocation, Serving Mobile Location Center) to replace.
LCS Client is a service application entity, the position that it obtains portable terminal by the mobile location service platform, and the position according to portable terminal provides corresponding location service again.
WLL (Wireless Local Loop, wireless local loop) is meant with wireless mode connecting terminal user and local switch, current radio access scheme based on CDMA technology is widely adopted, and docks by the V5.1/V5.2 interface of standard with LE (local switch).The BSS of WLL system (comprising BSC (base station controller) and BTS (base transceiver station)) is as the wireless access part of LE.From the network architecture of WLL system as can be known, link to each other by the V5 interface between BSC and the LE, do not have the A interface of MSC and standard, make existing WLL system can't realize positioning service like this.
Summary of the invention
In order to overcome the problem that WLL system in the prior art can't realize positioning service, the present invention proposes a kind of method and system of realizing positioning service based on wireless local loop system.
In order to realize the foregoing invention purpose, the present invention specifically is achieved in that
A kind of method based on wireless local loop system realization positioning service comprises following treatment step:
Step 2, the positional information that the message processing module that the mobile location service platform is provided with according to base station controller returns selects corresponding running fix equipment and described terminal to carry out interacting message by Query Database, realizes location Calculation;
Step 3, the mobile location service platform sends positioning result to the Location Request initiator by message processing module.
Wherein, in the described localization method,
Described Location Request initiator is the location services clients machine;
Increase the authentication to the location services clients machine before the described step 1, if by authentication, then change step 1 over to, the mobile location service platform is initiated locating request message to terminal then, after terminal is received request message, returns response message, agrees to be positioned; Otherwise not by authentication, then flow process finishes;
Described mobile location service platform is saved in positional information in the database.
Connect above-mentioned scheme, in the described localization method,
Described message processing module returns to the mobile location service platform with the running status of wll terminal, if be in open state, then changes step 2 over to, otherwise, being in off-mode, flow process finishes;
Described positional information comprises, location area code information and cell identity information.
Connect above-mentioned scheme, in the described localization method,
In the described step 2:
If described wll terminal is the local user, then obtains running fix equipment and the terminal that terminal belongs to the BSC area territory and carry out interacting message, the realization location Calculation;
If described wll terminal is the roamer, then obtain the running fix equipment and the terminal of roaming BSC area territory, terminal place correspondence and carry out interacting message, realize location Calculation.
Wherein, in the described method:
Described Location Request initiator is a wll terminal;
After described wll terminal and V5 VLR Visitor Location Register are finished authentication, send Location Request to the mobile location service platform by message processing module.
Connect above-mentioned scheme, in the described localization method:
In the described step 2:
If described wll terminal is the local user, then obtains running fix equipment and the terminal that terminal belongs to the BSC area territory and carry out interacting message, the realization location Calculation;
If described wll terminal is the roamer, then obtain the running fix equipment and the terminal of roaming BSC area territory, terminal place correspondence and carry out interacting message, realize location Calculation.
Connect above-mentioned scheme, in the described localization method:
In the described step 3:
Described mobile location service platform sends positioning result to wll terminal by message processing module;
Described mobile location service platform also is saved in described positioning result in the database, and sends the location services clients machine to.
A kind of system based on wireless local loop system realization positioning service comprises running fix equipment, mobile location service platform, wll terminal, base station sub-system and local switch, and wherein said base station sub-system comprises base station controller,
Described running fix equipment is connected by message interface with the mobile location service platform, and request and wll terminal that running fix equipment is accepted the mobile location service platform position calculating, and the auxiliary positioning data of wll terminal location is provided;
Described mobile location service platform positions calculation control, and stores and provide the locating information of wll terminal;
Described wll terminal provides and locatees relevant metrical information, is connected with base station sub-system by air interface;
Described local switch docks by standard interface;
Described mobile location service platform directly is connected with base station controller by message interface;
Described base station controller is provided with VLR Visitor Location Register/attaching position register and message processing module;
Described message processing module is accepted localization message in order to transmit location notification message that the mobile location service platform issues and to transmit to the mobile location service platform.
Wherein, in the described navigation system,
Also comprise location services client;
Described location services client in order to sending Location Request to the mobile location service platform or to receive the wll terminal locating information that the mobile location service platform obtains, and provides corresponding location service.
Connect above-mentioned scheme, in the described navigation system,
Described message interface is TCP/IP message interface or Signaling System Number 7 protocol message interface.
The present invention is by with BSS intrinsic in network element devices such as LCS Client, MPC in the existing mobile communications system, PDE and the WLL system with wll terminal is effective combines, not only realized scope of business based on the wll terminal of WLL system, and network configuration is simply clear, and it is low to expend cost.
Description of drawings
Fig. 1 is that existing mobile communications system realizes positioning service networking structure figure;
Fig. 2 is the process chart of the method for the invention one specific implementation;
Fig. 3 is the networking structure figure of system of the present invention one specific implementation.
Embodiment
Below in conjunction with the drawings and specific embodiments the method for the invention is elaborated.
Basic fundamental thought of the present invention is, BSS intrinsic in network element devices such as LCS Client, MPC in the existing mobile communications system, PDE and the WLL system and wll terminal effectively combined with this realize scope of business based on the wll terminal of WLL system.
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As shown in Figure 2, the concrete handling process of a specific implementation of the method for the invention is as follows:
S21, when LCS Client need determine the position of wll terminal, LCS Client sent request to MPC;
S22, MPC at first carry out authentication to LCS Client after the request of receiving, if LCS Client is not by authenticating, then the Location Request of LCS Client is rejected, and flow process finishes; Otherwise if pass through, MPC will determine the position of the BSC of wll terminal ownership according to the number of wll terminal, obtain the home position information of terminal to the VLR of the BSC that belongs to;
S23, V5VLR return wll terminal home position information, and the on-off state of terminal gives MPC, if returning terminal is in off-mode, then flow process finishes, otherwise, starting up of terminal, MPC obtains the home position information of terminal;
S23 wherein, no matter whether wll terminal is in random zone, the mobile location service platform all will be according to the number of wll terminal, obtains location information of terminals to the VLR of the BSC of its ownership, because what keep among the VLR of ownership BSC is the home position information of the current region of user.
In the WLL system, owing to only there is the number information of terminal on the LE, and user's current information is not safeguarded, then MPC obtains terminal current position information (Lac (Location area code by the VLR that is provided with on BSC, location area code) and CI (cell idication, cell ID) information), obtains the strength information of wireless signal simultaneously from BSC.
S24, MPC sends locating request message to wll terminal;
S25 after wll terminal is received request message, replys response message and agrees to be positioned;
S26, according to the wll terminal current position information, MPC obtains corresponding running fix equipment and terminal by Query Database and positions calculating.
S26 wherein, owing to store the positional information of wll terminal in the database, by inquiry, for the local user, running fix equipment and terminal that the acquisition terminal belongs to the BSC area territory position calculating, and for the roamer, running fix equipment and the terminal that can obtain roaming BSC area territory, terminal place correspondence position calculating, and the running fix equipment and the terminal that do not need to belong to the BSC area territory by terminal are carried out interacting message, realize location Calculation, have reduced the forwarding of message with this.
S27, running fix equipment returns to MPC with the precise location information of the wll terminal that calculates;
S28, MPC is recorded in lane database in order to inquiry with the positional information of wll terminal, also sends the locating information of obtaining to LCS Client, finishes position fixing process.
The concrete handling process of another specific implementation of the method for the invention is as follows:
S31, wll terminal sends the positioning service request to BSC;
S32 finishes authentication between wll terminal and the V5VLR, and this moment, V5VLR judged whether described wll terminal is validated user, if described terminal is a validated user, then changed S33 over to, otherwise flow process finishes;
S33, BSC sends locating request message to MPC, and MPC notice PDE prepares to position operation;
Wherein, the wll terminal positional information of described MPC by storing in the Query Database, by inquiry, for the local user, running fix equipment and terminal that the acquisition terminal belongs to the BSC area territory position calculating, and for the roamer, running fix equipment and the terminal that can obtain roaming BSC area territory, terminal place correspondence position calculating, and the running fix equipment and the terminal that do not need to belong to the BSC area territory by terminal are carried out interacting message, realize location Calculation.
S34, PDE and wll terminal carry out interacting message by BSC, position calculating, obtain the exact position of wll terminal;
S35, PDE returns to MPC with locating information;
S36, MPC is sent to wll terminal by the BSC/ message processing module with locating information, simultaneously locating information is also returned to LCS Client, finishes position fixing process.
Described wll terminal for example is MS, and carries out interacting message by air interface and BSS that for the communication equipment that the user uses described running fix equipment can be PDE or SMLC (Serving MobileLocation, Serving Mobile Location Center).
Be illustrated in figure 3 as the networking structure of system of the present invention one specific implementation, wherein, BSS, wll terminal all are the network element devices that present WLL system is possessed, and mobile location service platform and running fix equipment and LCS Client are that present mobile communication equipment has, and the present invention carries out effective combination with the network element device in aforementioned two systems.
As shown in the figure, PDE is connected by message interface with MPC, and the request that PDE accepts MPC positions calculating, and MS is provided the auxiliary positioning data of location.Described MPC positions calculation control, and stores and provide the positional information of MS, directly links to each other with BSS by message interface, and LCS Client provides different location services according to obtaining location information of terminals by MPC for terminal.Described BSS comprises BSC and BTS, BSC described in the WLL system links to each other with LE by the V5 interface, be with the difference of BSC in the mobile communication system, described BSS has increased VLR (Visitor Location Register in BSC, VLR Visitor Location Register)/HLR (Home Location Register, attaching position register) and can realize message message transmitted processing module, realize functions such as mobile terminal user management and travelling performance management.Described message processing module is responsible for transmitting the location notification message that MPC issues and is given PDE, and also transmit MS simultaneously and accept localization message to MPC, and PDE between the two forwards when MS is positioned; Wherein the V5 VLR among the BSC has preserved the Lac and the CI information of target mobile phones user roaming place in real time.The mobile location service platform directly links to each other with BSS by message interface, saves the reciprocal process with equipment such as HLR/AUC, MSC/VLR.Described MS docks by the V5 interface of standard with LE.
Described message interface can adopt TCP/IP message interface or Signaling System Number 7 protocol message interface.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the method based on wireless local loop system realization positioning service is characterized in that the mobile location service platform directly is connected with base station controller by message interface, and this method comprises following treatment step:
Step 1 is received the mobile location service platform of Location Request, obtains location information of terminals according to the number of wll terminal to be positioned to the VLR Visitor Location Register of the base station controller of terminal attaching;
Step 2, the positional information that the message processing module that the mobile location service platform is provided with according to base station controller returns selects corresponding running fix equipment and described terminal to carry out interacting message by Query Database, realizes location Calculation;
Step 3, the mobile location service platform sends positioning result to the Location Request initiator by message processing module.
2. the method based on wireless local loop system realization positioning service as claimed in claim 1 is characterized in that:
Described Location Request initiator is the location services clients machine;
Increase the authentication to the location services clients machine before the described step 1, if by authentication, then change step 1 over to, the mobile location service platform is initiated locating request message to terminal then, after terminal is received request message, returns response message, agrees to be positioned; Otherwise not by authentication, then flow process finishes;
Described mobile location service platform is saved in positional information in the database.
3. the method based on wireless local loop system realization positioning service as claimed in claim 1 or 2 is characterized in that:
Described message processing module returns to the mobile location service platform with the running status of wll terminal, if be in open state, then changes step 2 over to, otherwise, being in off-mode, flow process finishes;
Described positional information comprises, location area code information and cell identity information.
4. the method based on wireless local loop system realization positioning service as claimed in claim 3 is characterized in that:
In the described step 2:
If described wll terminal is the local user, then obtain the running fix equipment and the terminal in terminal institute home base station controller zone and carry out interacting message, realize location Calculation;
If described wll terminal is the roamer, then obtain the running fix equipment and the terminal of terminal place roaming Base Station Controller area correspondence and carry out interacting message, realize location Calculation.
5. the method based on wireless local loop system realization positioning service as claimed in claim 1 is characterized in that:
Described Location Request initiator is a wll terminal;
After described wll terminal and V5 VLR Visitor Location Register are finished authentication, send Location Request to the mobile location service platform by message processing module.
6. the method based on wireless local loop system realization positioning service as claimed in claim 5 is characterized in that:
In the described step 2:
If described wll terminal is the local user, then obtain the running fix equipment and the terminal in terminal institute home base station controller zone and carry out interacting message, realize location Calculation;
If described wll terminal is the roamer, then obtain the running fix equipment and the terminal of terminal place roaming Base Station Controller area correspondence and carry out interacting message, realize location Calculation.
7. as claim 5 or 6 described methods, it is characterized in that based on wireless local loop system realization positioning service:
In the described step 3:
Described mobile location service platform sends positioning result to wll terminal by message processing module;
Described mobile location service platform also is saved in described positioning result in the database, and sends the location services clients machine to.
8. the system based on wireless local loop system realization positioning service comprises running fix equipment, mobile location service platform, wll terminal, base station sub-system and local switch, and wherein said base station sub-system comprises base station controller,
Described running fix equipment is connected by message interface with the mobile location service platform, and request and wll terminal that running fix equipment is accepted the mobile location service platform position calculating, and the auxiliary positioning data of wll terminal location is provided;
Described mobile location service platform positions calculation control, and stores and provide the locating information of wll terminal;
Described wll terminal provides and locatees relevant metrical information, is connected with base station sub-system by air interface;
Described local switch docks by standard interface;
It is characterized in that:
Described mobile location service platform directly is connected with base station controller by message interface;
Described base station controller is provided with VLR Visitor Location Register/attaching position register and message processing module;
Described message processing module is accepted localization message in order to transmit location notification message that the mobile location service platform issues and to transmit to the mobile location service platform.
9. the system based on wireless local loop system realization positioning service as claimed in claim 8 is characterized in that:
Also comprise location services client;
Described location services client in order to sending Location Request to the mobile location service platform or to receive the wll terminal locating information that the mobile location service platform obtains, and provides corresponding location service.
10. realize the system of positioning service as claimed in claim 8 or 9 based on wireless local loop system, it is characterized in that:
Described message interface is TCP/IP message interface or Signaling System Number 7 protocol message interface.
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| CN2008100075981A CN101521846B (en) | 2008-02-29 | 2008-02-29 | Method based on WLL (wireless local loop) system to realize locating services and system thereof |
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| CN2008100075981A CN101521846B (en) | 2008-02-29 | 2008-02-29 | Method based on WLL (wireless local loop) system to realize locating services and system thereof |
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| CN103686591B (en) | 2012-09-06 | 2015-07-29 | 腾讯科技（深圳）有限公司 | Obtain the method and system of positional information |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602079A (en) * | 2003-09-27 | 2005-03-30 | 中兴通讯股份有限公司 | Positioning method based on mobile exchange center address |
| CN1812623A (en) * | 2005-01-27 | 2006-08-02 | 中兴通讯股份有限公司 | Method for positioning mobile station |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602079A (en) * | 2003-09-27 | 2005-03-30 | 中兴通讯股份有限公司 | Positioning method based on mobile exchange center address |
| CN1812623A (en) * | 2005-01-27 | 2006-08-02 | 中兴通讯股份有限公司 | Method for positioning mobile station |
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