CN101980574A - Method and device for realizing positioning by GMLC - Google Patents
Method and device for realizing positioning by GMLC Download PDFInfo
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- CN101980574A CN101980574A CN2010105088985A CN201010508898A CN101980574A CN 101980574 A CN101980574 A CN 101980574A CN 2010105088985 A CN2010105088985 A CN 2010105088985A CN 201010508898 A CN201010508898 A CN 201010508898A CN 101980574 A CN101980574 A CN 101980574A
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Abstract
The invention discloses a method for realizing positioning by a gateway mobile location centre (GMLC). The method mainly comprises the following steps that: the GMLC acquires position information of a positioned terminal from a base station controller (BSC) or a radio network controller (RNC), and performs positioning calculation according to the acquired position information to obtain a positioning result of a positioned terminal. The invention also discloses a device for realizing the positioning. The device realizes the integrated deployment of the GMLC and a service mobile location centre (SMLC) by integrating the function of the SMLC into the GMLC, improves the integration level of a system and saves the investment of an operator, so that the SMLC function in a 3rd generation partner project (3GPP) network is easy to realize and deploy.
Description
Technical field
The present invention relates to the location technology of the communications field, relate in particular to a kind of method and device of realizing the location by GMLC.
Background technology
Location-based business (LBS, Location Based Service) is called shift position business or positioning service again, and these professional main contents comprise: the part entity in mobile positioning center and the mobile communications network carries out alternately; Obtain the necessary measurement data of portable terminal by wireless location technology or assistant GPS location technology; By the geographical location information of position calculation entity, for example, the estimation of latitude and longitude coordinates; Position based on portable terminal provides corresponding call or non-call business and information service.
At third generation partner program (3GPP, 3rd Generation Partner Project) in the network, the navigation system network configuration as shown in Figure 1, the network element relevant with LBS mainly contains GMLC (GMLC, Gateway Mobile Location Center) and shift position service centre (SMLC, Serving Mobile Location Center) or independent SMLC (SAS, Stand-Alone SMLC), realize for convenience SMLC and SAS being referred to as SMLC.
In existing location technology, GMLC and SMLC fellowship need be realized the location to terminal.Wherein, GMLC mainly is responsible for handling the position requests that positioning client terminal (LCS Client) is sent, and obtains user's latitude and longitude information and returns to LCS Client.Simultaneously, GMLC still is the operation platform of location services system, finishes user data management, Service Data Management, service provider (SP, ServiceProvider) functions such as management and charging.SMLC mainly is responsible for the professional relevant measurement data of assembling position and positions calculating and obtain positioning result.
In the practical application, the SMLC function is integrated in radio network controller (RNC, Radio NetworkController) or base station controller (BSC, Base Station Controller) inside usually, is perhaps realized by an independent SMLC functional entity that is provided with.For the SMLC that is integrated in RNC inside, the SMLC device that just will have particular computational function is integrated among the RNC, can only realize the location Calculation that some are specific, therefore handling property is extremely limited, during upgrading, be integrated into again among RNC or the BSC after the SMLC device need being taken out and upgrade, when changing the SMLC function, then need to change SMLC device integrated among RNC or the BSC, the maintenance of SMLC function and upgrading are very difficult; And the independent SMLC functional entity that is provided with needs RNC to support Iupc interface or BSC to support the Lb interface, could be connected with the independent SMLC functional entity that is provided with, and this mode can increase hardware and link overhead greatly.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of and realizes the method and the device of location by GMLC, with solve in the existing location technology handling property limited, safeguard and problem such as upgrading difficulty.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method that realizes the location by GMLC (GMLC), described method comprises: GMLC obtains the location information of terminals that is positioned from base station controller (BSC) or radio network controller (RNC), and according to accessed positional information, position calculating, the positioning result of the terminal that obtains being positioned.
In such scheme, described GMLC obtains the location information of terminals that is positioned from BSC or RNC, be specially: described BSC or RNC collect the described location information of terminals that is positioned, and send to described GMLC by the mobile switching centre (MSC) at the described terminal place that is positioned.
In such scheme, described BSC or RNC collect the described location information of terminals that is positioned, and send to described GMLC by the described MSC that is positioned the terminal place, comprise: BSC or RNC collect the described location information of terminals that is positioned, the positional information of collecting is encapsulated in executing location response signaling or the position message signaling, carries MSC to the described terminal that is positioned; The MSC at the described terminal place that is positioned carries described positional information to described GMLC by the customer location response is provided again.
In such scheme, the positional information that described BSC collects comprises cell ID, and following parameter any one or a plurality of: each parameter, the time of advent of uplink downlink, the time of advent in Timing Advance, the network measure report are poor; The positional information that described RNC collects, comprise the cell ID of this sub-district and abutting subdistrict and following parameter any one or a plurality of: the round-trip delay of this sub-district and abutting subdistrict, path loss, received signal code power, signal to noise ratio, RNC sign, the time of advent, the time of advent of longitude and latitude data, uplink downlink are poor.
In such scheme, before described BSC or the described location information of terminals that is positioned of RNC collection, described method also comprises: after described GMLC receives the running fix agreement request of positioning client terminal transmission, transmission provides the customer location signaling to described MSC, MSC will send executing location demand signalling or position message control signaling to RNC or BSC, the acquisition request location information of terminals that is positioned.
In such scheme, after the positioning result of terminal that obtains being positioned, described method also comprises: described GMLC sends to positioning client terminal with resulting positioning result.
The present invention also provides a kind of device of locating of being used to realize, described device is specially GMLC, and this GMLC comprises: acquiring unit and computing unit, and wherein, acquiring unit is used for obtaining the location information of terminals that is positioned from BSC or RNC; Computing unit is used for the positional information that gets access to according to described acquiring unit, positions calculating, the positioning result of the terminal that obtains being positioned.
In such scheme, described GMLC also comprises receiving element, is used to receive the running fix agreement request that positioning client terminal sends; Described acquiring unit specifically is used for obtaining the location information of terminals that is positioned from BSC or RNC after described receiving element receives described running fix agreement request.
In such scheme, described GMLC also comprises transmitting element, is used for the positioning result that described computing unit obtains is sent to positioning client terminal.
In the localization method of the present invention, GMLC obtains the location information of terminals that is positioned from BSC or RNC, and according to accessed positional information, position calculating, obtain the positioning result of terminal that is positioned, thereby the SMLC function has been integrated among the GMLC, realized the unification deployment of GMLC and SMLC, improved the integrated level of system, saved the investment of operator, made that the SMLC function becomes under the 3GPP network to be easy to realize and dispose.
Description of drawings
Fig. 1 is a navigation system network structure in the 3GPP network;
Fig. 2 is for realizing the realization flow figure of localization method by GMLC among the present invention;
Fig. 3 is the composition structural representation of the device that is used among the present invention to realize locate;
The structural representation of the 2G SMLC navigation system that Fig. 4 provides for the embodiment of the invention one;
The structural representation of the 3G SMLC navigation system that Fig. 5 provides for the embodiment of the invention two.
Embodiment
Basic thought of the present invention is: the SMLC function is integrated among the GMLC, just can realize location by GMLC to the terminal that is positioned, not only help the lifting of navigation system disposal ability, and help the maintenance of navigation system and sharing of resource, can also save the investment of operator simultaneously.
A kind of method that realizes the location by GMLC of the present invention, with reference to shown in Figure 2, described method mainly comprises: GMLC obtains the location information of terminals that is positioned from BSC or RNC, and according to accessed positional information, position calculating, the positioning result of the terminal that obtains being positioned.
Wherein, GMLC obtains the location information of terminals that is positioned from BSC or RNC, be specially: described BSC or RNC collect the described location information of terminals that is positioned, and send to described GMLC by the mobile switching centre (MSC, Mobile Switching Center) at the described terminal place that is positioned.
Particularly, described BSC or RNC collect the described location information of terminals that is positioned, the positional information of collecting is encapsulated in executing location response signaling (Perform Location Response) or position message signaling (Location Report) signaling, carries MSC to the described terminal that is positioned; The MSC of the described terminal that is positioned carries described positional information to described GMLC by customer location response (PSL, Provide SubscriberLocation Response) is provided again.
Here, the positional information that BSC collects specifically can include but not limited to: cell ID (Cellid), and following parameter any one or a plurality of: Timing Advance (TA, Timing Advance), the time of advent (TOA) of each parameter in the network measure report (NMR, Network Measurement Report), uplink downlink and the time of advent poor parameters such as (TDOA); Here, the parameter in the network measure report (NMR, Network Measurement Report) is as adjacent area average received level (RxLev).
The positional information that RNC collects specifically can include but not limited to: the cell ID of this sub-district and abutting subdistrict (Cellid), and following parameter any one or a plurality of: round-trip delay (RTT, Round-TripTime), path loss (Pathloss), received signal code power (RSCP, Received Signal Code Power), signal to noise ratio (Ec/N0), RNC identify (RNCID), the time of advent of longitude and latitude data and uplink downlink (TOA) and the time of advent poor parameters such as (TDOA).
Before BSC or the described location information of terminals that is positioned of RNC collection, described method also comprises: GMLC receives running fix agreement request (the MLP Request that LCS Client sends, MobileLocation Protocol Request) after, transmission provides customer location signaling (PSL) to described MSC, MSC will send executing location demand signalling (Perform Location Request) or position message control signaling (Location Report Control) to RNC or BSC, the acquisition request location information of terminals that is positioned.
After the positioning result of terminal that obtains being positioned, described method also comprises: described GMLC sends to described LCS Client with resulting positioning result.
In order to realize said method, the present invention also provides a kind of device of locating of being used to realize, with reference to shown in Figure 3, this device mainly comprises: acquiring unit 31 and computing unit 32, wherein, acquiring unit 31 is used for obtaining the location information of terminals that is positioned from BSC or RNC; Computing unit 32 is used for the positional information that gets access to according to described acquiring unit 31, positions calculating, the positioning result of the terminal that obtains being positioned.
Wherein, described GMLC also comprises receiving element 33, is used to receive the running fix agreement request that positioning client terminal sends; Described acquiring unit 31 specifically is used for obtaining the location information of terminals that is positioned from BSC or RNC after described receiving element 33 receives described running fix agreement request.
Wherein, described GMLC also comprises transmitting element 34, is used for the positioning result that described computing unit 32 obtains is sent to positioning client terminal.
In the practical application,, realize the detailed process of location, please refer to the above description and the hereinafter description of embodiment of correlation technique, no longer put down in writing at this by above-mentioned device.
In the practical application, for the 2G network, when BSC receives the Perform LocationRequest that MSC issues, BSC is with the collection position information such as the TA of terminal and NMR that are positioned, directly be encapsulated among the Perform Location Response and send to MSC, MSC turns back to GMLC by the PSL response with described positional information again, positions calculating by GMLC, and the positioning result that obtains is directly returned to LCS Client.
For 3G network, when RNC receives the Location Report Control signaling that MSC issues, the positional information that will comprise Pathloss, RSCP, Ec/N0, RNCID, Cellid and the corresponding longitude and latitude etc. of RTT, adjacent area directly is encapsulated among the Location Report, sends to MSC; By the PSL response described positional information is turned back to GMLC again, position calculating by GMLC, and the positioning result that obtains is directly returned to LCS Client.
Embodiment one
In the 2G network, realize location process by GMLC, as shown in Figure 4, specifically may further comprise the steps:
Step S401, LCS Client sends MLP Location Request (MLP Request) to GMLC.
Step S402, GMLC finishes authentication, sends the PSL signaling to the MSC at the terminal place that is positioned, and asks to be positioned location information of terminals.
Particularly, GMLC is from HLR obtain the to be positioned MSC/ VLR Visitor Location Register (VLR of terminal, Visitor Location Register)/GPRS serving GPRS support node (SGSN, Servicing GPRS SupportNode) sign, for example MSC number (msc-Number) or SGSN number (sgsn-Number), and, send the PSL signaling to the MSC at the terminal place that is positioned according to the sign of the MSC/VLR/SGSN that is obtained.
After step S403, MSC receive the PSL of GMLC transmission, send Perform LocationRequest, ask to be positioned location information of terminals to BSC.
Step S404, BSC are carried at after the packing and return to MSC among the Perform Location Response after collecting the positional information terminal that is positioned, that include data such as TA and NMR;
Particularly, can use the existing field among the Perform Location Response, perhaps can in Perform Location Response, define special-purpose extended field, carry described positional information.
Step S405, MSC transfer to the positional information that BSC sends among the Perform Location Response in the PSL response (PSL ACK), send to GMLC.
Step S406, GMLC extract the described location information of terminals that is positioned from the PSL response that MSC sends, utilize sign (Cellid), Timing Advance (TA) and the network measure report information such as (NMR) of the sub-district that comprises in the positional information, the application experience radio waves propagation model, for example, village-Ha Ta (Okumura-Hata) model difficult to understand is finished location Calculation, as triangulation calculation or least square iterative computation, obtain positioning result, realize the function of SMLC.
Particularly, utilize the sign (Cellid), Timing Advance (TA) of the sub-district that comprises in the positional information and the measured value of the adjacent area average received level (RxLev) in the network measure report (NMR), the application experience radio waves propagation model, for example, the Okumura-Hata model adopts corresponding method for calculating and locating, as computational methods such as triangulation calculation or least square iterative computation, finish location Calculation, obtain positioning result.
Wherein, RxLev describes the statistical parameter of receiving signal strength signal intensity (Signal Strengh), and the height of RxLev has reflected the distance of distance.
Here, in location Calculation, the parameter difference that comprises in the positional information, the method for calculating and locating that is adopted is also different, and this is a conventional means well known to those skilled in the art, does not repeat them here.
Step S407, GMLC directly return to LCS Client with the positioning result that calculates.
Embodiment two
In 3G network, realize location process by GMLC, as shown in Figure 4, specifically may further comprise the steps:
Step S501, LCS Client sends MLP Location Request (MLP Request) to GMLC.
Step S502, GMLC finishes authentication, and sends the PSL signaling to the MSC of the terminal that is positioned, and asks to be positioned location information of terminals.
Particularly, GMLC is from HLR obtain the to be positioned sign of MSC/VLR/SGSN of terminal, for example MSC number (msc-Number) or SGSN number (sgsn-Number), and, send the PSL signaling to the MSC of the terminal that is positioned according to the sign of the MSC/VLR/SGSN that is obtained.
After step S503, MSC receive the PSL signaling of GMLC transmission, send LocationReport Control signaling, ask to be positioned location information of terminals to RNC.
Step S504～S507, RNC send the request of measuring (MeasurementRequest) to UE and NodeB respectively, obtain the positional information of measurement results (MeasurementResponse) such as including RTT, Pathloss, RSCP, Ec/N0.
Step S508, RNC be the positional information that gets access to, and the position information such as longitude and latitude of the antenna of be positioned sub-district, terminal place and the abutting subdistrict thereof that obtain by Query Database, is packaged in the LocationReport signaling and returns to MSC;
Particularly, can use the existing field among the Location Report, perhaps the special-purpose extended field of definition in Location Report carries described positional information.
Step S509, MSC transfer to the positional information that RNC sends among the Location Report in the PSL response, send to GMLC.
Step S510, GMLC extract described positional information from the PSL response that MSC sends, finish location Calculation, obtain positioning result, realize the function of SMLC.
Particularly, can utilize RTT and the Active Set in the measurement report and the parameters such as the RSCP, the Ec/N0 that monitor the collection sub-district, Pathloss that comprise in the positional information, adopt corresponding method for calculating and locating,, finish location Calculation, obtain positioning result as triangulation calculation.
In 3G network, in like manner, the parameter difference that comprises in the positional information, the method for calculating and locating that is adopted is also different, generally adopts the method for triangulation calculation to position calculating, also can adopt the method for least square iterative computation.
Step S511, GMLC directly return to LCS Client with resulting positioning result.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. one kind is passed through the method that GMLC (GMLC) is realized the location, it is characterized in that described method comprises:
GMLC obtains the location information of terminals that is positioned from base station controller (BSC) or radio network controller (RNC), and according to accessed positional information, positions calculating, the positioning result of the terminal that obtains being positioned.
2. the method that realizes the location by GMLC according to claim 1 is characterized in that described GMLC obtains the location information of terminals that is positioned from BSC or RNC, is specially:
Described BSC or RNC collect the described location information of terminals that is positioned, and send to described GMLC by the mobile switching centre (MSC) at the described terminal place that is positioned.
3. the method by GMLC realization location according to claim 2 is characterized in that described BSC or RNC collect the described location information of terminals that is positioned, and sends to described GMLC by the described MSC that is positioned the terminal place, comprising:
BSC or RNC collect the described location information of terminals that is positioned, and the positional information of collecting is encapsulated in executing location response signaling or the position message signaling, carry the MSC to the described terminal that is positioned; The MSC at the described terminal place that is positioned carries described positional information to described GMLC by the customer location response is provided again.
4. according to each described method of claim 2 to 3, it is characterized in that by GMLC realization location,
The positional information that described BSC collects comprises cell ID, and following parameter any one or a plurality of: each parameter, the time of advent of uplink downlink, the time of advent in Timing Advance, the network measure report are poor;
The positional information that described RNC collects, comprise the cell ID of this sub-district and abutting subdistrict and following parameter any one or a plurality of: the round-trip delay of this sub-district and abutting subdistrict, path loss, received signal code power, signal to noise ratio, RNC sign, the time of advent, the time of advent of longitude and latitude data, uplink downlink are poor.
5. according to each described method of claim 2 to 3, it is characterized in that before described BSC or the described location information of terminals that is positioned of RNC collection, described method also comprises by GMLC realization location:
After described GMLC receives the running fix agreement request of positioning client terminal transmission, transmission provides the customer location signaling to described MSC, MSC will send executing location demand signalling or position message control signaling to RNC or BSC, the acquisition request location information of terminals that is positioned.
6. according to claim 1ly realize the method for location, it is characterized in that after the positioning result of terminal that obtains being positioned, described method also comprises: described GMLC sends to positioning client terminal with resulting positioning result by GMLC.
7. one kind is used to the device realizing locating, it is characterized in that described device is specially GMLC, and this GMLC comprises: acquiring unit and computing unit, wherein,
Acquiring unit is used for obtaining the location information of terminals that is positioned from BSC or RNC;
Computing unit is used for the positional information that gets access to according to described acquiring unit, positions calculating, the positioning result of the terminal that obtains being positioned.
8. according to claim 7ly be used to realize the device of locating, it is characterized in that described GMLC also comprises receiving element, be used to receive the running fix agreement request that positioning client terminal sends;
Described acquiring unit specifically is used for obtaining the location information of terminals that is positioned from BSC or RNC after described receiving element receives described running fix agreement request.
9. each describedly is used to realize the device of locating according to claim 7 to 8, it is characterized in that described GMLC also comprises transmitting element, is used for the positioning result that described computing unit obtains is sent to positioning client terminal.
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| CN2010105088985A CN101980574A (en) | 2010-10-12 | 2010-10-12 | Method and device for realizing positioning by GMLC |
| PCT/CN2011/072297 WO2012048558A1 (en) | 2010-10-12 | 2011-03-30 | Method and apparatus for realizing location by gateway mobile location center |
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| WO2012048558A1 (en) * | 2010-10-12 | 2012-04-19 | 中兴通讯股份有限公司 | Method and apparatus for realizing location by gateway mobile location center |
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| WO2016172965A1 (en) * | 2015-04-30 | 2016-11-03 | 华为技术有限公司 | Interaction method, device and system for positioning parameter |
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