CN102469577A - Method and system for positioning femtocell by using secure user plane location (SUPL) platform - Google Patents
Method and system for positioning femtocell by using secure user plane location (SUPL) platform Download PDFInfo
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- CN102469577A CN102469577A CN2010105317876A CN201010531787A CN102469577A CN 102469577 A CN102469577 A CN 102469577A CN 2010105317876 A CN2010105317876 A CN 2010105317876A CN 201010531787 A CN201010531787 A CN 201010531787A CN 102469577 A CN102469577 A CN 102469577A
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Abstract
The invention relates to a method and a system for positioning a femtocell by using a secure user plane location (SUPL) platform, which are used for positioning the femtocell by applying the SUPL platform and a network system supporting the SUPL platform. The method comprises the following steps of: starting an SUPL program for establishing communication with the SUPL platform in the femtocell, acquiring auxiliary positioning information and approximate position information through the SUPL platform, and calculating the auxiliary positioning information to acquire accurate position information to replace the approximate position information when related satellite signals captured by the femtocell are enough for the femtocell to perform positioning calculation; and providing the position information acquired after positioning is finished for a mobile communication core network when the femtocell is registered, or broadcasting the position information to mobile communication network users in a communication range covered by the femtocell.
Description
Technical field
The present invention relates to the location technology in a kind of field of wireless communication; More detailed, relate to a kind of SUPL of application platform and support the network system of this SUPL platform to carry out the for example system and the method thereof of the location, microcellulor formula base station of femtocell (Femtocell) formula base station.
Background technology
In the development course of network communication, network coverage ability is (the Internet Service Provider of ISP always; ISP) emphasis of networking also is that the user selects one of consideration key element of ISP.At present; The network coverage property of wide area is quite stable; Macrocellular (Macro cell) the formula base station that for example coverage (coverage) is big promptly can be applicable to user's flow that population is more sparse and rate travel is fast, even if remote rural area has also reached the covering of Wide Area Network basically.But with regard to densely populated city, under the situation along with mobile communication subscriber increase in high building closeness and the building, room area then is the more weak zone of macrocell system network coverage property always; Thereby arise at the historic moment in a kind of femtocell (Femtocell) formula base station that is called, and the mobile communications network coverage has been extended in said femtocell (Femtocell) formula base station, and it can solve the more weak problem of network coverage property of aforementioned compartment inner region.
Operation principles like macrocellular formula base station; Said femtocell formula base station is in operation; Except the geographical location information of self need be provided to mobile communication core net (core network) in when registration; So that carry out the management of mobile communication network arrangement; Also need in the geographic range of its covering, constantly broadcast this information,, can receive this geographical location information and then reach wireless network and connect to carry out radio communication so that when for example mobile communication terminal such as mobile phone gets into the geographic range that this femtocell formula base station covered; Thereby said femtocell formula base station need position processing when adding network communication services.
In the prior art, femtocell formula base station all relies on traditional GLONASS (Global Navigation Satellite System on location requirement; GNSS) chip/receiver; For example; Direct collocation GNSS chip/receiver in femtocell formula base station, this femtocell formula base station is calculated the locator data (like difference correction data, satellite transit state etc.) of position voluntarily when the location, position to catch the GNSS signal; But this kind locate mode often is subject to the sensitivity and the signal strength signal intensity of GNSS chip/receiver, locatees the problem that maybe can't position for a long time first and produce.Moreover, GLONASS (the Assisted Global Navigation Satellite System of collocation network assistance in femtocell formula base station; A-GNSS) chip/receiver utilizes internet (Internet) line to receive the assist location information from the A-GNSS server, to capture signal fast; Though can quicken primary positioning time, under GNSS satellite-signal bad environment, for example receive covering and hindering of weather cloud layer or building, still have the problem that can't locate.
Summary of the invention
Shortcoming in view of above-mentioned prior art; Method and system thereof that a purpose of the present invention is to provide a kind of SUPL of application platform to carry out location, microcellulor formula base station are to solve that femtocell formula base station in the prior art was located for a long time first or because of receiving the bad problem that can't locate of causing of signal.
For reaching above-mentioned purpose and other relevant purpose, the present invention provides a kind of SUPL of application platform to carry out the method and the system thereof of location, microcellulor formula base station.This application SUPL platform carries out the method for location, microcellulor formula base station; Use for microcellulor formula base station applies SUPL platform and support the network system of this SUPL platform to position; The positional information that obtains behind the location will offer the mobile communication core net when this microcellulor formula base station login; Or in the communication context that this microcellulor formula base station is covered, be broadcast to the mobile communication network user; This method may further comprise the steps: 1) start in this microcellulor formula base station in order to set up the SUPL program of linking up with this SUPL platform; To obtain assist location information and general location information through this SUPL platform, this microcellulor formula base station utilizes assist location information, and the position location satellite that is occurred by the overhead most probable in present position begins to attempt catching the required satellite-signal in location; And 2) judge whether the related satellite signal of being caught is enough to position calculating; If judging the satellite-signal content that obtains can supply under the condition of location Calculation; Calculate precise position information to substitute general location information; Offer the mobile communication core net during for this microcellulor formula base station login, or in the communication context that it covered, be broadcast to the mobile communication network user, be not enough to position calculating if judge this related satellite signal of being caught; Make this microcellulor formula base station when registration, provide this general location information, or in the communication context that it covered, broadcast this general location information to this mobile communication core net.Use in the method that the SUPL platform carries out microcellulor formula base station location in the present invention; Support the network system of this SUPL platform to comprise GNSS satellite, global grid of reference and mobile communication network base station, and this SUPL platform have the consumer positioning plane of linking up use between the SUPL centre of location, SUPL place-centric and SUPL platform and microcellulor formula base station.
Aforementioned the present invention uses in the method that the SUPL platform carries out microcellulor formula base station location; This step 1) may further comprise the steps: 1-1) this microcellulor formula base station is passed through with the online consumer positioning plane that is the basis, internet, and the online solicited message in location that transmission carries terminal iidentification is to the SUPL platform; 1-2) the SUPL centre of location on this SUPL platform receives after this locatees online solicited message; Verify the location authority of this microcellulor formula base station; And after confirming to have the location authority, between this SUPL platform and this microcellulor formula base station, set up communication and this SUPL place-centric transmission assist location information and general location information and give this microcellulor formula base station; 1-3) this microcellulor formula base station is according to this assist location information capture related satellite signal, to obtain the location relevant information.In addition, step 2) may further comprise the steps: judge according to this location relevant information whether this related satellite signal is enough to position calculating.
In abovementioned steps 2) specific embodiment in, can be by this microcellulor formula base station according to this step 1-3) this location relevant information of being obtained calculates, to obtain precise position information; Or can be by this SUPL platform according to this step 1-3) this location relevant information of being obtained calculates precise position information, and this microcellulor formula base station is given in passback.
The present invention also provides a kind of SUPL of application platform to carry out the system of location, microcellulor formula base station, and this system comprises: a plurality of mobile communication networks base station; The SUPL platform is provided with the SUPL place-centric in order to the positional information of knowing a plurality of mobile communication networks base station, and links up the SUPL centre of location of (it is online that for example responsible and SUPL user sets up secure data) in order to set up; The consumer positioning plane connects this SUPL platform; And microcellulor formula base station, be provided with SUPL program in order to link up with this SUPL platform, with when starting this SUPL program, set up communication through consumer positioning plane and this SUPL platform; This microcellulor formula base station provides the positional information of contiguous mobile communication network base station to this SUPL place-centric, and this SUPL place-centric is then obtained the general location information and the assist location information of this microcellulor formula base station according to this and given this microcellulor formula base station; This microcellulor formula base station utilizes assist location information; The position location satellite that is occurred by the overhead most probable in present position begins to attempt catching the required satellite-signal in location; Satellite-signal content obtaining can supply under the condition of location Calculation, calculates the precise position information of this microcellulor formula base station; Otherwise when if the content of positioning satellite signal is not enough to locate, this microcellulor formula base station will be with the general location information that obtained as locating information.
By on can know; The present invention uses method and system's utilization thereof that the SUPL platform carries out microcellulor formula base station location and starts the SUPL program that is arranged in the microcellulor formula base station and link up with the SUPL platform; Obtaining assist location information and general location information, and, after calculating, obtain precise position information through this assist location information capture located in connection satellite-signal; Not only overcome in the prior art femtocell formula base station and located problem of a specified duration first; What is more important is not enough in the positioning satellite signal content under the environment of location Calculation, and this microcellulor formula base station still can obtain general location information and be able to offer the mobile communication core net; Or in coverage, be broadcast to the mobile communication user, and then solved and caused the problem that to locate when the positioning satellite signal content is not enough in the prior art.
Description of drawings
Fig. 1 shows that application SUPL platform of the present invention carries out the method flow diagram of location, microcellulor formula base station; And
Fig. 2 shows that application SUPL platform of the present invention carries out the system's basic framework and the application architecture calcspar thereof of location, microcellulor formula base station.
[primary clustering symbol description]
1 uses the system that the SUPL platform carries out location, microcellulor formula base station
11 microcellulor formula base stations
12 SUPL platforms
The 121 SUPL centres of location
122 SUPL place-centrics
13 mobile communication network base stations
14 consumer positioning planes
3 global grid of references
4 GNSS satellites
S1～S9 step.
Embodiment
Below through specific execution mode technology contents of the present invention is described, those skilled in the art can understand other advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can implement or use through other different embodiment, and each item details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
The present invention provides a kind of application safety user plane location (SECURE USER PLANE LOCATION; SUPL) method of platform to for example positioning for the microcellulor formula base station of femtocell formula (Femtocell) formula base station; This method is used the SUPL platform and is supported the network system of SUPL platform; When registering, provide positional information for microcellulor formula base station to the mobile communication core net; Or in the communication context that it covered, broadcast its positional information, support the framework of the network system of this SUPL platform to comprise GLONASS (Global Navigation Satellite System; GNSS) satellite, global grid of reference (World Wide Reference Network; WWRN) and the mobile communication network base station.
Need to prove that this GNSS satellite is contained the whole world, so that the geographical space location of independence to be provided, for ground receiving wastewater facility sends satellite-signal; This whole world grid of reference includes GNSS signal receiving device and GNSS data server; Utilize various places GNSS signal receiving device to continue to collect global satellite ephemeris content; And storing each satellite data, this GNSS signal receiving device can obtain the longitude and latitude and the height of self-position through the signal that sends from the satellite timesharing in several meters error.This mobile communication network base station is broadcasted necessary information and is given the mobile communication network user in coverage, comprise positional information; This SUPL platform is used to obtain the position of this mobile communication network base station, and online to obtain the position location satellite information of top, each mobile communication network base station with this whole world grid of reference, simultaneously, also with this mutual Data transmission in microcellulor formula base station so that positioning service to be provided.
Show that like Fig. 1 application SUPL platform of the present invention carries out the method flow diagram of location, microcellulor formula base station.As shown in the figure, at first execution in step S1 is provided with the SUPL program in microcellulor formula base station; In a specific embodiment, dispose GLONASS (the Assisted Global Navigation Satellite System that can carry out assist location in this microcellulor formula base station; A-GNSS) chip, this A-GNSS chip then proceeds to step S2 in order to handle assist location information that is provided from this SUPL platform and the positioning satellite signal that is received.
In this step S2, the base station initiated SUPL program of this microcellulor formula, assist location and general location two information to obtain this present position, microcellulor formula base station through the SUPL platform then proceed to step S3.The position location satellite that this assist location information is used to instruct the overhead most probable in this present position, microcellulor formula base station to exist is so that this microcellulor formula base station has stronger specific aim when searching positioning satellite signal; And this general location information is to be drawn by the mobile communication network associated information calculation; Summary geographic range for this present position, microcellulor formula base station; Particularly; The mobile communication network dealer is provided with the mobile communication network base station respectively in a plurality of predetermined mobile communication scopes, the position that is provided with that is close to the mobile communication network base station through this microcellulor formula base station reaches respectively this signal of base station intensity, and the collocation algorithm can be set up aforementioned general location information; The error distance of said summary geography information will be provided with density and this error distance of corresponding increase and decrease according to this mobile communication network base station between 10m to 10km.
In this step S3, this microcellulor formula base station utilizes assist location information, and the position location satellite that is occurred by the overhead most probable in present position begins to attempt catching the required satellite-signal in location, then proceeds to step S4.
In this step S4, the satellite-signal capture-process is finished in this microcellulor formula base station, and judges whether the satellite-signal that this microcellulor formula base station is caught is enough to position calculating, if the satellite-signal content of catching can position calculating, then proceeds to step S5; Otherwise the satellite-signal content of being caught when this microcellulor formula base station is not enough to position when calculating, and then proceeds to step S9.What need further specify is; Judge that satellite-signal content that this microcellulor formula base station is caught can position The conditions of calculation and must be understood by microcellulor formula base station by the content of for example related satellite signal, and need three satellite-signals understood that satellite provides to position calculating at least.
In this step S5, judge whether this microcellulor formula base station will calculate the exact position voluntarily, if, then proceed to step S7 by this microcellulor formula base station location Calculation voluntarily; Otherwise, if not, then proceed to step S6 by this microcellulor formula base station location Calculation voluntarily.
In this step S6, this microcellulor formula base station is sent to the SUPL platform with the positioning satellite signal content that is captured, and behind the position that goes out this microcellulor formula base station to be calculated, this positional information is returned to this microcellulor formula base station, then proceeds to step S8.
In this step S7, the positioning satellite signal content that is captured is complied with in this microcellulor formula base station, by this microcellulor formula base station positional information of calculating voluntarily itself, then proceeds to step S8.
In this step S8, precise position information is obtained in this microcellulor formula base station, and finishes the SUPL program, can finish the localization process step of this microcellulor formula base station.
In this step S9, general location information is obtained in this microcellulor formula base station, and finishes the SUPL program, can finish the localization process step of this microcellulor formula base station.
What further specify is; Among the abovementioned steps S2; Before the assist location and general location two information of its present position can be obtained in this microcellulor formula base station; This microcellulor formula base station is to send the online solicited message in location that carries terminal iidentification through the consumer positioning plane, positions the proving program of authority for the SUPL platform.When this SUPL platform judges that this microcellulor formula base station has the location authority; Can supply this microcellulor formula base station and this SUPL platform to link up; With assist location and general location two information that obtain its present position; Otherwise,, then refuse Location Request and finish the localization process step of this microcellulor formula base station if do not have the location authority.Aforementioned terminals is designated this microcellulor formula base station can supply to discern identity on the SUPL platform information.
Behind abovementioned steps S8 and step S9; This microcellulor formula base station promptly can its precise position information of obtaining or general location information register to mobile communication core net (core network), or the mobile communication network user in its signal cover broadcasts.
Can know to step S8 by above-mentioned steps S3; Because this microcellulor formula base station is through this assist location information capture related satellite signal; Stronger specific aim is arranged, can obtain this precise position information soon, and then solved in the prior art microcellulor formula base station and located problem of a specified duration first.
Next cooperates aforementioned flow chart of steps explanation application of the present invention SUPL platform shown in Figure 1 to carry out the system of location, microcellulor formula base station.Fig. 2 carries out the system's basic framework and the application architecture calcspar thereof of location, microcellulor formula base station in order to application SUPL platform of the present invention to be described.
As shown in the figure; Application SUPL platform of the present invention carries out the system 1 of location, microcellulor formula base station; For positioning, microcellulor formula base station 11 is able to when registration, provide positional information to the mobile communication core net; Or in the communication context that it covered broadcasting its positional information; The present invention uses the system 1 that the SUPL platform carries out microcellulor formula base station location and comprises a plurality of mobile communication networks base station 13, SUPL platform 12, microcellulor formula base station 11, and with the internet online serve as basic and when finder in order to the consumer positioning plane 14 of swap data.
This SUPL platform 12 is provided with in order to obtain the SUPL place-centric 122 of these a plurality of mobile communication networks base station 13 positional informations, reaches in order to set up the online SUPL centre of location 121 of secure data.
This microcellulor formula base station 11 is provided with in order to set up the SUPL program of line of communication with SUPL platform 12, when starting this SUPL program, sends the online solicited message in location through consumer positioning plane 14; In concrete embodiment; Dispose the A-GNSS chip that can carry out assist location in this microcellulor formula base station 11; The assist location information that is provided with the SUPL place-centric 122 of handling this SUPL platform 12; And handle the positioning satellite signal that is received, and carry terminal iidentification in the aforementioned positioning request information, this terminal iidentification can supply to discern the information of identity on this SUPL platform for this microcellulor formula base station.
Have the SUPL place-centric 122 and the SUPL centre of location 121 in this SUPL platform 12; This SUPL place-centric 122 can be online to global grid of reference 3 and obtain its GNSS satellite of collecting 4 ephemeris contents; So that assist location information to be provided; Also can carry out the prediction of long term orbit data, so that assist location information to be provided in real time to required every GNSS satellite 4; This SUPL centre of location 121 is sent this microcellulor formula base station 11 of locating online solicited message in order to checking and whether is had the location authority.Because global grid of reference (World Wide Reference Network; WWRN) for having the necessaries of localization process now, so do not give unnecessary details its system architecture and function for literary composition at this.
This SUPL platform 12 receives after this locatees online solicited message; Start the location authority of these SUPL centre of location 121 these microcellulor formula base stations 11 of checking; Whether can set up finder to judge this microcellulor formula base station 11; Then do not refuse localization process if do not have the location authority, if judge and have the location authority, then in this microcellulor formula base station 11 and 12 on this SUPL platform set up and link up; And this SUPL place-centric 122 is obtained the positional information of contiguous mobile communication network base station 13, this microcellulor formula base station 11 after set up linking up, and uses to send assist location information and general location information is given this microcellulor formula base station 11.
In concrete embodiment; After this microcellulor formula base station 11 receives the assist location information and general location information of these SUPL place-centric 122 transmissions; This microcellulor formula base station 11 will begin overhead GNSS satellite 4 signals of catching position according to assist location information; If GNSS satellite 4 signal contents of being caught are not enough to position when calculating; This microcellulor formula base station 11 will provide general location information to the mobile communication core net when registration, or in the communication context that it covered, broadcast its general location information so that carry out operate as normal.
Under another situation; GNSS satellite 4 signal contents of promptly being caught when this microcellulor formula base station 11 can supply to position when calculating; To calculate to obtain precise position information according to resulting related satellite signal; And then make this microcellulor formula base station 11 when registration, provide precise position information, or in the communication context that it covered, broadcast its precise position information to the mobile communication core net.
Moreover; Except that calculating to obtain the precise position information according to resulting location relevant information aforementioned this microcellulor formula base station 11; In another embodiment, can pass resulting location relevant information back this SUPL platform 12 by this microcellulor formula base station 11, calculate precise position information via this SUPL platform 12 according to this location relevant information; This microcellulor formula base station 11 is given in passback again, so be not to be defined in by calculating this microcellulor formula base station 11.
In sum; Using method and system thereof that the SUPL platform carries out microcellulor formula base station location through the present invention has not only overcome in the prior art microcellulor formula base station and had located problem of a specified duration first; What is more important; Be not enough to position under the environment of calculating in the positioning satellite signal content; This microcellulor formula base station still can obtain general location information and be able in registration the time provide positional information to the mobile communication core net, or in the communication context that it covered broadcasting its positional information, and then solved positioning satellite signal content deficiency in the prior art and caused the problem that can't locate.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, have common knowledge the knowledgeable in every affiliated technical field, still contain by the protection range of claims not breaking away from all equivalence modifications of being accomplished under disclosed spirit and the technological thought or changing.
Claims (10)
1. use the method that the SUPL platform carries out location, microcellulor formula base station for one kind; Use for microcellulor formula base station applies SUPL platform and support the network system of this SUPL platform to position; With its resulting positional information in back, location of broadcasting in the communication context that is covered in this microcellulor formula base station; Or when registration, provide positional information to the mobile communication core net, it is characterized in that this method may further comprise the steps:
1) start in this microcellulor formula base station in order to setting up the SUPL program of linking up with this SUPL platform, obtaining assist location information and general location information through this SUPL platform, and through this assist location information capture related satellite signal; And
2) judge whether this related satellite signal of being caught is enough to position calculating; Be enough to position calculating if judge this related satellite signal of being caught; Position calculating to obtain precise position information according to this related satellite signal; When registering, provide this precise position information for this microcellulor formula base station, or in the communication context that it covered, broadcast this precise position information, be not enough to position calculating if judge this related satellite signal of being caught to the mobile communication core net; Make this microcellulor formula base station when registration, provide this general location information, or in the communication context that it covered, broadcast this general location information to this mobile communication core net.
2. application SUPL platform according to claim 1 carries out the method for location, microcellulor formula base station, it is characterized in that, and is further comprising the steps of:
In this microcellulor formula base station, this SUPL program is set in advance.
3. application SUPL platform according to claim 1 carries out the method for location, microcellulor formula base station; It is characterized in that; Support the network system of this SUPL platform to comprise GNSS satellite, global grid of reference and mobile communication network base station, and this SUPL platform have the consumer positioning plane of linking up use between the SUPL centre of location, SUPL place-centric and SUPL platform and microcellulor formula base station.
4. application SUPL platform according to claim 3 carries out the method for location, microcellulor formula base station, it is characterized in that this step 1) may further comprise the steps:
1-1) the online solicited message in location that carries terminal iidentification is sent through network system and this consumer positioning plane of supporting this SUPL platform in this microcellulor formula base station;
1-2) this SUPL platform receives after this locatees online solicited message; Start the location authority of this this microcellulor formula base station of SUPL centre of location checking; And after confirming to have the location authority, between this SUPL platform and this microcellulor formula base station, set up and link up, and this SUPL place-centric is linked up in foundation, and assist location information is sent in the back and general location information is given this microcellulor formula base station; And
1-3) this microcellulor formula base station is according to this assist location information capture related satellite signal, to obtain the location relevant information.
5. application SUPL platform according to claim 4 carries out the method for location, microcellulor formula base station, it is characterized in that this step 2) may further comprise the steps:
Judge according to this location relevant information whether this related satellite signal is enough to position calculating.
6. application SUPL platform according to claim 4 carries out the method for location, microcellulor formula base station, it is characterized in that, this terminal iidentification can supply to discern the information of identity on the SUPL platform for this microcellulor formula base station.
7. application SUPL platform according to claim 5 carries out the method for location, microcellulor formula base station; It is characterized in that; Judge according to this location relevant information whether this related satellite signal is enough to position calculating by this microcellulor formula base station; And in judged result for after being, position calculating according to this related satellite signal, to obtain accurate smart positional information.
8. application SUPL platform according to claim 5 carries out the method for location, microcellulor formula base station; It is characterized in that; Judge according to this location relevant information whether this related satellite signal is enough to position calculating by this SUPL platform; And in judged result for after being, positions according to this related satellite signal and to calculate precise position information, and this microcellulor formula base station is given in passback.
9. use the system that the SUPL platform carries out location, microcellulor formula base station for one kind, it is characterized in that this system comprises:
A plurality of mobile communication networks base station;
The SUPL platform is provided with in order to the SUPL place-centric of the positional information of knowing this a plurality of mobile communication networks base station and in order to set up the SUPL centre of location of linking up;
The consumer positioning plane connects this SUPL platform; And
Microcellulor formula base station; Be provided with SUPL program in order to link up with this SUPL platform; With when starting this SUPL program; Set up communication through this consumer positioning plane and this SUPL platform; This microcellulor formula base station provides the positional information of the contiguous mobile communication network base station of this SUPL place-centric after set up linking up, obtain the general location information and the assist location information of this microcellulor formula base station with this SUPL place-centric certainly, and this microcellulor formula base station utilizes this assist location information capture related satellite signal and judges whether this related satellite signal is enough to position calculating; If this related satellite signal that captures is enough to position when calculating; Calculate this related satellite signal with the precise position information that obtains this microcellulor formula base station and with it as locating information, if the related satellite signal deficiency that captures is for location Calculation, this microcellulor formula base station will be with the general location information that obtained as locating information.
10. use the system that the SUPL platform carries out location, microcellulor formula base station for one kind, it is characterized in that this system comprises:
A plurality of mobile communication networks base station;
The SUPL platform is provided with in order to the SUPL place-centric of the positional information of knowing this a plurality of mobile communication networks base station and in order to set up the SUPL centre of location of linking up;
The consumer positioning plane connects this SUPL platform; And
Microcellulor formula base station; Be provided with SUPL program in order to link up with this SUPL platform; With when starting this SUPL program; Set up communication through this consumer positioning plane and this SUPL platform; This microcellulor formula base station provides the positional information of the contiguous mobile communication network base station of this SUPL place-centric after setting up communication; Obtain the general location information and the assist location information of this microcellulor formula base station with this SUPL place-centric certainly; This microcellulor formula base station utilizes this assist location information capture related satellite signal and judges whether this related satellite signal is enough to position calculating, if this related satellite signal of capturing is enough to position when calculating, this microcellulor formula base station is transmitted this related satellite signal to this SUPL platform and made location Calculation and return to this microcellulor formula base station as locating information with the precise position information that obtains this microcellulor formula base station and with it; If the related satellite signal deficiency that captures is for location Calculation, this microcellulor formula base station will be with the general location information that obtained as locating information.
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| US9749903B2 (en) | 2012-06-28 | 2017-08-29 | China Academy Of Telecommunications Technology | Method, system, and device for switching |
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