WO2016106720A1 - 一种定位方法及移动终端 - Google Patents

一种定位方法及移动终端 Download PDF

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Publication number
WO2016106720A1
WO2016106720A1 PCT/CN2014/095990 CN2014095990W WO2016106720A1 WO 2016106720 A1 WO2016106720 A1 WO 2016106720A1 CN 2014095990 W CN2014095990 W CN 2014095990W WO 2016106720 A1 WO2016106720 A1 WO 2016106720A1
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WO
WIPO (PCT)
Prior art keywords
neighboring cell
agnss
mobile terminal
base station
information
Prior art date
Application number
PCT/CN2014/095990
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English (en)
French (fr)
Inventor
卢恒惠
龙水平
刘永祥
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US15/541,177 priority Critical patent/US20170367064A1/en
Priority to EP14909527.5A priority patent/EP3226626B1/en
Priority to PCT/CN2014/095990 priority patent/WO2016106720A1/zh
Priority to CN201480079837.8A priority patent/CN106465326A/zh
Publication of WO2016106720A1 publication Critical patent/WO2016106720A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a positioning method and a mobile terminal.
  • the Assisted Global Navigation Satellite System is characterized by fast response, high positioning accuracy and low power consumption.
  • the AGNSS assistance data eg, almanac, ephemeris, clock or reference location
  • the AGNSS server determines the reference location of the mobile terminal and provides AGNSS assistance data according to the reference location and information such as the almanac, clock, and the like of the AGNSS server, thereby achieving fast positioning.
  • the reference location is generally determined by the geographic location of the base station of the serving cell where the mobile terminal is located, and the AGNSS server can obtain the geographic location of the base station by searching the base station information database.
  • the base station information database is incomplete, that is, there may be no geographical location of a certain base station.
  • the construction of the base station information database may not keep up with the speed of network construction, resulting in a lack of a complete base station information database, thereby causing AGSSS positioning failure.
  • the embodiment of the invention provides a positioning method and a mobile terminal, which are used to improve the positioning success probability of the AGNSS and enhance the robustness of the AGNSS.
  • the first aspect provides a positioning method, including:
  • the mobile terminal acquires the base station information of the neighboring cell of the serving cell where the mobile terminal is currently located, where the preset condition includes: the service that the mobile terminal is located in the preset network standard.
  • the cell handover occurs, or the mobile terminal receives an auxiliary global navigation satellite system AGNSS error message;
  • the mobile terminal acquires AGNSS assistance data according to base station information of the neighboring cell;
  • the mobile terminal performs positioning according to the AGNSS assistance data.
  • the AGNSS error message is used to refer to The AGNSS assistance data is not obtained by the AGNSS server.
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located, including :
  • the mobile terminal acquires broadcast information of the neighboring cell
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell.
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located, including :
  • the mobile terminal acquires broadcast information of the neighboring cell and signal strength information of the neighboring cell, where the signal strength information includes any one of a received signal strength indicator and a reference signal received power;
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell and the signal strength information of the neighboring cell.
  • the mobile terminal acquires an AGSSS assistance according to the base station information of the neighboring cell.
  • Data including:
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the mobile terminal acquires an AGSSS assistance according to the base station information of the neighboring cell Data, including:
  • KNN K nearest neighbor node algorithm
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the mobile terminal acquires an AGSSS assistance according to the base station information of the neighboring cell.
  • Data including:
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the second aspect provides a mobile terminal, including:
  • a first acquiring module configured to acquire base station information of a neighboring cell of the serving cell where the mobile terminal is currently located when the preset condition is met, where the preset condition includes: the mobile terminal is in a preset network format The serving cell at the handover is switched, or an auxiliary global navigation satellite system AGNSS error message is received;
  • a second acquiring module configured to acquire AGNSS auxiliary data according to the base station information of the neighboring cell acquired by the first acquiring module
  • a positioning module configured to perform positioning according to the AGNSS assistance data acquired by the second acquiring module.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the first acquiring module includes:
  • a first acquiring unit configured to acquire broadcast information of the neighboring cell, and acquire base station information of the neighboring cell according to broadcast information of the neighboring cell.
  • the first acquiring module includes:
  • a second acquiring unit configured to acquire broadcast information of the neighboring cell and signal strength information of the neighboring cell, and acquire the phase according to broadcast information of the neighboring cell and signal strength information of the neighboring cell Base station information of the neighboring cell, the signal strength information includes a received signal strength indication and a reference signal Any one of the received powers.
  • the second acquiring module includes:
  • a first sending unit configured to send a base station identifier of one of the neighboring cells to an AGNSS server
  • the first receiving unit is configured to: after the first sending unit sends the base station identifier of one of the neighboring cells to the AGNSS server, receive the AGNSS assistance data sent by the AGNSS server.
  • the second acquiring module includes:
  • An acquiring unit configured to acquire, according to base station information of the neighboring cell, a geographic location of a base station of the neighboring cell;
  • a determining unit configured to determine, according to a geographic location of the base station of the neighboring cell acquired by the acquiring unit, a KNN algorithm to determine a current geographic location of the mobile terminal
  • p i represents the geographic location of the base station of the i-th neighboring cell
  • ⁇ i represents the weight of the geographical position of the base station of the i-th neighboring cell
  • r i represents the base station of the i-th neighboring cell received by the mobile terminal Signal strength
  • a second sending unit configured to determine the geographic location according to the determining unit Send to the AGNSS server;
  • a second receiving unit configured to send the geographical location in the second sending unit After receiving the AGNSS assistance data sent by the AGNSS server.
  • the second acquiring module includes:
  • a third sending unit configured to send a base station identifier of all cells in the neighboring cell to an AGNSS server;
  • the third receiving unit is configured to: after the third sending unit sends the base station identifier of all the cells in the neighboring cell to the AGNSS server, receive the AGNSS auxiliary data sent by the AGNSS server.
  • a third aspect provides a mobile terminal, including: a transceiver, a memory, a processor, and a bus, The transceiver, memory, and processor are coupled to the bus, wherein:
  • the transceiver is configured to receive or transmit data
  • the memory is for storing a program
  • the processor is configured to invoke the program to perform the following operations:
  • the preset condition includes: the serving cell that the mobile terminal is located in the preset network standard Switching, or the mobile terminal receives an auxiliary global navigation satellite system AGNSS error message;
  • Positioning is performed according to the AGNSS assistance data.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the processor acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located, including :
  • the processor acquires broadcast information of the neighboring cell
  • the processor acquires base station information of the neighboring cell according to broadcast information of the neighboring cell.
  • the processor acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located, including :
  • the processor acquires base station information of the neighboring cell according to broadcast information of the neighboring cell and signal strength information of the neighboring cell.
  • the processor acquires an AGSSS assist Data, including:
  • the processor sends a base station identifier of one of the neighboring cells to an AGNSS server;
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the processor according to the base station information of the neighboring cell, acquires an AGSSS assistance.
  • Data including:
  • KNN K nearest neighbor node algorithm
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the processor acquires an AGSSS assistance according to the base station information of the neighboring cell.
  • Data including:
  • the processor sends a base station identifier of all cells in the neighboring cell to an AGNSS server;
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the mobile terminal when the preset condition is met, acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located; and the mobile terminal acquires AGNSS auxiliary data according to the base station information of the neighboring cell; The mobile terminal performs positioning according to the AGNSS assistance data.
  • the base station information of the neighboring cell is used to acquire the AGNSS auxiliary data.
  • only the base station information of the current serving cell is used, which can effectively improve the positioning success probability of the AGNSS, and can also enhance the robustness of the AGNSS.
  • FIG. 1 is a schematic diagram of an embodiment of a positioning method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a positioning method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a positioning method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a positioning method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a positioning method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an embodiment of a mobile terminal according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of a mobile terminal according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of another embodiment of a mobile terminal according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of a mobile terminal according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the embodiment of the invention provides a positioning method and a mobile terminal, which are used to improve the positioning success probability of the AGNSS and enhance the robustness of the AGNSS.
  • the technical solution of the present invention can be applied to various communication systems, for example, a global mobile communication system (English full name: Global System for Mobi le Communication, abbreviation: GSM), code division multiple access (English full name: Code Division Mult iple Access, abbreviation: CDMA) system, wideband code division multiple access (English name: Wideband Code Division Multiple Access, abbreviation: WCDMA), general packet radio service (English full name: General Packet Radio Service, abbreviation: GPRS), long-term evolution (English) Full name: Long Term Evolution, abbreviation: LTE).
  • GSM Global System for Mobi le Communication
  • CDMA Code Division Mult iple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE long-term evolution
  • the base station may be a base station in GSM or CDMA (English full name: Base Transceiver Station abbreviation: BTS), or may be a base station (Node B) in WCDMA, or an evolved base station in LTE (English full name: evolutional Node B) , abbreviation: eNB or e-Node B), the invention is not limited.
  • BTS Base Transceiver Station
  • Node B base station
  • LTE Evolutional Node B
  • eNB evolutional Node B
  • the mobile terminal may be a mobile phone or a notebook, or may be an on-board computer or the like, and the present invention is not limited thereto.
  • an embodiment of a positioning method in an embodiment of the present invention includes:
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located;
  • the mobile terminal is in the AGNSS positioning state that has been turned on.
  • the base station information includes but is not limited to: a base station identifier, and a received signal strength (English) Full name: Received Signal Strength, abbreviation: RSS), mobile country number (English full name: Mobile Country Code, abbreviation: MCC), mobile network code (English full name: Mobile Network Code, abbreviation: MNC) or location area code (English full name : Location Area Code (abbreviated LAC), etc., which is not specifically limited here.
  • a base station identifier and a received signal strength (English) Full name: Received Signal Strength, abbreviation: RSS), mobile country number (English full name: Mobile Country Code, abbreviation: MCC), mobile network code (English full name: Mobile Network Code, abbreviation: MNC) or location area code (English full name : Location Area Code (abbreviated LAC), etc., which is not specifically limited here.
  • the preset condition includes: the mobile terminal is switched by the serving cell where the preset network system is located, or the mobile terminal receives an auxiliary global navigation satellite system AGNSS error message, and
  • the preset conditions may also include other content, which is not specifically limited herein.
  • the mobile terminal acquires AGNSS auxiliary data according to base station information of the neighboring cell.
  • the required AGNSS auxiliary data may be obtained according to the base station information of the neighboring cell in different manners, wherein the AGNSS auxiliary data includes the almanac At least one of a star calendar, a clock, a Doppler shift, a code delay, an azimuth or an elevation angle.
  • the mobile terminal after the AGNSS positioning failure is performed according to the base station information of the currently located serving cell, the mobile terminal obtains the AGNSS auxiliary data by using the base station information of the neighboring cell, which can effectively improve the probability of successfully acquiring the AGNSS auxiliary data, and can also improve the probability of successfully acquiring the AGNSS auxiliary data. Enhance the robustness of AGNSS.
  • the mobile terminal performs positioning according to the AGNSS auxiliary data.
  • the GNSS in the mobile terminal after the mobile terminal receives the AGNSS assistance data provided by the AGNSS server, the GNSS in the mobile terminal performs positioning according to information such as Doppler frequency offset or code delay in the auxiliary data.
  • the base station information of the neighboring cell is used to acquire the AGNSS auxiliary data, and only the base station information of the current serving cell is used compared with the prior art. It can effectively improve the success probability of AGNSS positioning, and can also enhance the robustness of AGNSS.
  • another embodiment of the positioning method in the embodiment of the present invention includes:
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located.
  • the mobile terminal is in the AGNSS positioning state that has been turned on.
  • the preset condition includes: the mobile terminal is switched by the serving cell where the preset network system is located, or the mobile terminal receives an auxiliary global navigation satellite system AGNSS error message, and
  • the preset conditions may also include other content, which is not specifically limited herein.
  • the preset network standard may be a time division synchronous code division multiple access TD-SCDMA or other 4G network standard, etc., and is not specifically limited herein.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • AGNSS error message received by the mobile terminal may also be used to indicate other AGNSS error causes, which is not specifically limited herein.
  • the acquiring, by the mobile terminal, base station information of a neighboring cell of the serving cell where the mobile terminal is currently located includes:
  • the mobile terminal acquires broadcast information of the neighboring cell
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell.
  • the acquiring, by the mobile terminal, base station information of a neighboring cell of the serving cell where the mobile terminal is currently located includes:
  • the mobile terminal acquires broadcast information of the neighboring cell and signal strength information of the neighboring cell, where the signal strength information includes any one of a received signal strength indicator and a reference signal received power;
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell and the signal strength information of the neighboring cell.
  • the mobile terminal sends the base station identifier of one of the neighboring cells to the AGNSS server.
  • the neighboring cells are prioritized according to the information of the base station information database and the signal strength of the base station, and are not specifically limited.
  • the base station identifier of the neighboring cell with the highest priority may be sent to the AGNSS server for the first time, and if the mobile terminal does not successfully receive the AGNSS auxiliary data, the base station of the neighboring cell of the next priority is used. The identity is sent to the AGNSS server and the process is repeated until the mobile terminal successfully receives the AGNSS assistance data.
  • the mobile terminal receives the AGNSS auxiliary data sent by the AGNSS server.
  • the mobile terminal after performing the AGNSS positioning failure according to the base station information of the currently located serving cell, acquires the AGNSS auxiliary data by using the base station information of the neighboring cell, thereby effectively improving The success probability of AGNSS positioning can also enhance the robustness of AGNSS.
  • the mobile terminal performs positioning according to the AGNSS auxiliary data.
  • the GNSS of the mobile terminal after the mobile terminal receives the AGNSS assistance data provided by the AGNSS server, the GNSS of the mobile terminal performs star search and positioning according to information such as Doppler frequency offset and code delay in the auxiliary data.
  • the base station information of the neighboring cell is used to acquire the AGNSS auxiliary data, and only the base station information of the current serving cell is used compared with the prior art. It can effectively improve the success probability of AGNSS positioning, and can also enhance the robustness of AGNSS.
  • another embodiment of the positioning method in the embodiment of the present invention includes:
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located;
  • step 201 in the embodiment of FIG. 2.
  • the mobile terminal acquires a geographical location of a base station of the neighboring cell according to the base station information of the neighboring cell.
  • the geographic location of the base station of the neighboring cell may be directly extracted from the broadcast information (such as a CDMA network), or may be obtained from a third-party or locally stored base station information database by using the Cel l-ID positioning method. No specific restrictions are made.
  • the mobile terminal determines, according to the geographic location of the base station of the neighboring cell, the K nearest neighbor node algorithm KNN algorithm to determine the current geographic location of the mobile terminal.
  • p i represents the geographic location of the base station of the i-th neighboring cell
  • ⁇ i represents the weight of the geographical position of the base station of the i-th neighboring cell
  • r i represents the base station of the i-th neighboring cell received by the mobile terminal Signal strength.
  • the current geographic location of the mobile terminal is Send to the AGNSS server.
  • the mobile terminal receives the AGNSS auxiliary data sent by the AGNSS server.
  • the mobile terminal performs positioning according to the AGNSS auxiliary data.
  • the AGNSS auxiliary data is acquired by using the base station information of the neighboring cell.
  • only using the base station information of the current serving cell can effectively improve the success probability of the AGNSS positioning, and can also enhance the robustness of the AGNSS.
  • another embodiment of the positioning method in the embodiment of the present invention includes:
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located.
  • step 201 in the embodiment of FIG. 2.
  • the mobile terminal sends the base station identifier of all cells in the neighboring cell to the AGNSS server.
  • the base station identifiers of all the cells in the neighboring cells include the base station identifiers of all the neighboring cells of the same standard and the heterogeneous system, so that the AGSSS server provides the corresponding AGNSS auxiliary data according to the base station identifiers of all the neighboring cells. .
  • the base station identifiers of all cells in all neighboring cells are sent to the AGNSS server.
  • the mobile terminal receives the AGNSS auxiliary data sent by the AGNSS server.
  • the mobile terminal performs positioning according to the AGNSS auxiliary data.
  • the base station information of the neighboring cell is used to acquire the AGNSS auxiliary data, and only the base station information of the current serving cell is used compared with the prior art. It can effectively improve the success probability of AGNSS positioning, and can also enhance the robustness of AGNSS.
  • a specific application scenario embodiment of the positioning method in the embodiment of the present invention includes:
  • the mobile terminal acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located;
  • step 201 in the embodiment of FIG. 2.
  • the mobile terminal acquires broadcast information of a neighboring cell and signal strength information of the neighboring cell.
  • the mobile terminal monitors the broadcast information of the currently located serving cell, and extracts the frequency of the neighboring cell from the system information block (English name: System Information Block, abbreviation: SIB) in the broadcast information, and the mobile terminal
  • SIB System Information Block
  • the broadcast information of the neighboring cell is monitored at the frequency of the neighboring cell, and the signal strength of the neighboring cell is measured to obtain the signal strength information of the neighboring cell.
  • the signal strength information includes any one of a received signal strength indication and a reference signal received power.
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell and the signal strength information of the neighboring cell.
  • the mobile terminal acquires base station information of the neighboring cell according to the broadcast information of the neighboring cell, which is not specifically limited herein.
  • the mobile terminal acquires AGNSS auxiliary data according to base station information of the neighboring cell.
  • the mobile terminal acquires the AGNSS assistance data according to the base station information of the neighboring cell, including:
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the neighboring cells are prioritized, for example, the base station identifier of the neighboring cell with the highest priority is sent to the AGNSS server for the first time, and if the mobile terminal does not successfully receive the AGNSS auxiliary data, the next priority is obtained.
  • the base station identity of the neighboring cell is sent to the AGNSS server, and the process is repeated until the mobile terminal successfully receives the AGNSS assistance data.
  • the neighboring cells may be prioritized according to the base station database and the signal strength of the base station, which is not specifically limited herein.
  • the mobile terminal acquires the AGNSS assistance data according to the base station information of the neighboring cell, including:
  • the mobile terminal determines, by using a KNN algorithm, the current geographic location of the mobile terminal according to the geographic location of the base station of the neighboring cell.
  • p i represents the geographic location of the base station of the i-th neighboring cell
  • ⁇ i represents the weight of the geographical position of the base station of the i-th neighboring cell
  • r i represents the base station of the i-th neighboring cell received by the mobile terminal Signal strength.
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the geographic location of the base station of the neighboring cell may be directly extracted from the broadcast information (such as a CDMA network), or may be the base station information stored by the third party or the local device by using the Cell-ID positioning method. Obtained in the database, there is no specific limit here.
  • the acquiring, by the mobile terminal, the AGNSS assistance data according to the base station information of the neighboring cell includes:
  • the mobile terminal receives the AGNSS assistance data sent by the AGNSS server.
  • the base station identifiers of all the cells in the neighboring cells include the base station identifiers of all the neighboring cells of the same standard and the heterogeneous system, so that the AGSSS server provides the corresponding AGNSS auxiliary data according to the base station identifiers of all the neighboring cells. .
  • the mobile terminal performs positioning according to the AGNSS auxiliary data.
  • the base station information of the neighboring cell is used to acquire the AGNSS auxiliary data, and only the base station information of the current serving cell is used compared with the prior art. It can effectively improve the success probability of AGNSS positioning, and can also enhance the robustness of AGNSS.
  • an embodiment of the mobile terminal 600 in the embodiment of the present invention includes: a first obtaining module 601, a second acquiring module 602, and a positioning module 603.
  • the first obtaining module 601 is configured to acquire base station information of a neighboring cell of the serving cell where the mobile terminal is currently located when the preset condition is met, where the preset condition includes: the mobile terminal is in a preset network format.
  • the serving cell is switched, or receives an auxiliary global navigation satellite system AGNSS error message;
  • the second obtaining module 602 is configured to acquire AGNSS auxiliary data according to the base station information of the neighboring cell acquired by the first acquiring module 601.
  • the positioning module 603 is configured to perform positioning according to the AGNSS assistance data acquired by the second obtaining module 602.
  • the AGSSS auxiliary data is acquired by using the base station information of the neighboring cell, and only the base station of the current serving cell is used compared with the prior art.
  • the information can effectively improve the success probability of AGNSS positioning, and can also enhance the robustness of AGNSS.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the first obtaining module 601 includes a first acquiring unit 6011.
  • the first obtaining unit 6011 is configured to acquire broadcast information of the neighboring cell, and acquire base station information of the neighboring cell according to the broadcast information of the neighboring cell.
  • the first obtaining module 601 includes a second acquiring unit 6012.
  • the second obtaining unit 6012 is configured to acquire broadcast information of the neighboring cell and signal strength information of the neighboring cell, and obtain the foregoing according to the broadcast information of the neighboring cell and the signal strength information of the neighboring cell.
  • Base station information of the neighboring cell where the signal strength information includes any one of a received signal strength indication and a reference signal received power;
  • the second obtaining module 602 includes: a first sending unit 6021 and a first receiving unit 6022.
  • a first sending unit 6021 configured to send a base station identifier of one of the neighboring cells to an AGNSS server;
  • the first receiving unit 6022 is configured to receive, after the first sending unit 6021 sends the base station identifier of one of the neighboring cells to the AGNSS server, the AGNSS assistance data sent by the AGNSS server.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the first obtaining module 601 includes a first acquiring unit 6011.
  • the first obtaining unit 6011 is configured to acquire broadcast information of the neighboring cell, and acquire base station information of the neighboring cell according to the broadcast information of the neighboring cell.
  • the first obtaining module 601 includes a second acquiring unit 6012.
  • the second acquiring unit 6012 is configured to acquire broadcast information of the neighboring cell and signal strength information of the neighboring cell, and obtain, according to broadcast information of the neighboring cell and signal strength information of the neighboring cell.
  • the second obtaining module 602 includes: a first obtaining unit 6031, a determining unit 6032, a second sending unit 6033, and a second receiving unit 6034.
  • the obtaining unit 6031 is configured to acquire, according to the base station information of the neighboring cell, a geographical location of the base station of the neighboring cell;
  • a determining unit 6032 configured to determine, according to a geographic location of the base station of the neighboring cell acquired by the acquiring unit 6031, a KNN algorithm to determine a current geographic location of the mobile terminal
  • p i represents the geographic location of the base station of the i-th neighboring cell
  • ⁇ i represents the weight of the geographic location of the base station of the i-th neighboring cell
  • r i represents the received from the i-th neighboring cell by the mobile terminal Base station signal strength
  • a second sending unit 6033 configured to determine the geographic location according to the determining unit 6032 Send to the AGNSS server;
  • a second receiving unit 6034 configured to send the geographic location in the second sending unit 6033 After receiving the AGNSS assistance data sent by the AGNSS server.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the first obtaining module 601 includes a first acquiring unit 6011.
  • the first obtaining unit 6011 is configured to acquire broadcast information of the neighboring cell, and acquire base station information of the neighboring cell according to the broadcast information of the neighboring cell.
  • the first obtaining module 601 includes a second acquiring unit 6012.
  • the second obtaining unit 6012 is configured to acquire broadcast information of the neighboring cell and signal strength information of the neighboring cell, and obtain the foregoing according to the broadcast information of the neighboring cell and the signal strength information of the neighboring cell.
  • Base station information of the neighboring cell, the signal strength information including any one of a received signal strength indication and a reference signal received power.
  • the second obtaining module 602 is configured to acquire AGNSS auxiliary data according to the base station information of the neighboring cell acquired by the first acquiring mode 601.
  • the second obtaining module 602 includes: a third sending unit 6041 and a third receiving unit 6042.
  • a third sending unit 6041 configured to send a base station identifier of all cells in the neighboring cell to an AGNSS server;
  • the third receiving unit 6042 is configured to: after the third sending unit 6041 sends the base station identifier of all the cells in the neighboring cell to the AGNSS server, receive the location sent by the AGNSS server. Said AGNSS auxiliary data.
  • FIG. 6 to FIG. 9 illustrates the specific structure of the mobile terminal from the perspective of the function module.
  • the specific structure of the mobile terminal is described from the hardware point of view below with reference to the embodiment of FIG. 10:
  • FIG. 10 is a schematic structural diagram of a mobile terminal 1000 according to an embodiment of the present invention, including a transceiver 1001, a memory 1002, a processor 1003, and a bus 1004.
  • the transceiver 1001, the memory 1002, and the processor 1003 are configured.
  • the bus 1004 is connected, wherein:
  • the transceiver 1001 is configured to receive or send data
  • the memory 1002 is configured to store a program
  • the processor 1003 is configured to invoke the program to perform the following operations:
  • the preset condition includes: the serving cell that the mobile terminal is located in the preset network standard Switching, or the mobile terminal receives an auxiliary global navigation satellite system AGNSS error message;
  • Positioning is performed according to the AGNSS assistance data.
  • the AGNSS error message is used to indicate that the AGNSS server does not obtain the AGNSS assistance data.
  • the acquiring, by the processor, base station information of a neighboring cell of the serving cell where the mobile terminal is currently located including:
  • the processor acquires broadcast information of the neighboring cell
  • the processor acquires base station information of the neighboring cell according to broadcast information of the neighboring cell.
  • the acquiring, by the processor, base station information of a neighboring cell of the serving cell where the mobile terminal is currently located including:
  • the processor acquires base station information of the neighboring cell according to broadcast information of the neighboring cell and signal strength information of the neighboring cell.
  • the processor acquires the AGSSS auxiliary data according to the base station information of the neighboring cell, where include:
  • the processor sends a base station identifier of one of the neighboring cells to an AGNSS server;
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the acquiring, by the processor, the AGNSS auxiliary data according to the base station information of the neighboring cell including:
  • KNN K nearest neighbor node algorithm
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the acquiring, by the processor, the AGNSS auxiliary data according to the base station information of the neighboring cell including:
  • the processor sends a base station identifier of all cells in the neighboring cell to an AGNSS server;
  • the processor receives the AGNSS assistance data sent by the AGNSS server.
  • the mobile terminal when the preset condition is met, acquires base station information of a neighboring cell of the serving cell where the mobile terminal is currently located; and the mobile terminal according to the base station information of the neighboring cell Acquiring the AGNSS assistance data; the mobile terminal performs positioning according to the AGNSS assistance data, because in the technical solution of the present invention, the mobile terminal uses the base station information of the neighboring cell after performing the AGNSS positioning failure according to the base station information of the currently located serving cell.
  • the AGNSS assistance data can improve the success probability of the AGNSS positioning and the robustness of the AGNSS by using only the base station information of the current serving cell compared with the prior art.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了一种定位方法，用于提高AGNSS的定位成功概率，增强AGNSS的鲁棒性。所述方法包括：在满足预设条件时，移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息；所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据；所述移动终端根据所述AGNSS辅助数据进行定位。

Description

一种定位方法及移动终端 技术领域
本发明涉及通信技术领域，具体涉及一种定位方法及移动终端。
背景技术
辅助全球导航卫星系统(英文全称：Assisted Global Navigation Satellite System，缩写：AGNSS)因具有响应快速、定位精度高、功耗低的特点。通过AGNSS服务器为移动终端的全球导航卫星系统(英文全称：Global Navigation Satellite System，缩写：GNSS)提供AGNSS辅助数据(例如，历书、星历、时钟或参考位置)，可以提高移动终端的GNSS的定位速度。AGNSS服务器确定移动终端的参考位置并根据该参考位置和AGNSS服务器已有的历书、时钟等信息提供AGNSS辅助数据，从而实现快速定位。其中，参考位置通常由移动终端所处的服务小区的基站地理位置确定，AGNSS服务器可通过查找基站信息数据库得到基站地理位置。然而，在实际应用中，却时常存在基站信息数据库不完备的情况，即可能不存在某基站地理位置。例如，在新移动通信网络(如4G，5G)建设时，基站信息数据库的建设可能跟不上网络建设的速度，以致缺乏完整的基站信息数据库，从而引发AGNSS定位失败。
发明内容
本发明实施例提供一种定位方法及移动终端，用于提高AGNSS的定位成功概率，增强AGNSS的鲁棒性。
第一方面提供一种定位方法，包括：
在满足预设条件时，移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息；
所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据；
所述移动终端根据所述AGNSS辅助数据进行定位。
结合第一方面，在第一种可能的实现方式中，所述AGNSS错误消息用于指 示AGNSS服务器未获取到所述AGNSS辅助数据。
结合第一方面或第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述移动终端获取所述相邻小区的广播信息；
所述移动终端根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
结合第一方面或第一方面的第一种可能的实现方式，在第三种可能的实现方式中，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述移动终端获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
所述移动终端根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
结合第一方面或第一方面的第一种至第三种任意一种可能的实现方式，在第四种可能的实现方式中，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述移动终端将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第一方面或第一方面的第一种至第三种任意一种可能的实现方式，在第五种可能的实现方式中，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述移动终端根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
所述移动终端根据所述相邻小区的基站地理位置采用K最邻近节点算法KNN确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000001
Figure PCTCN2014095990-appb-000002
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理 位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度；
所述移动终端将确定的所述地理位置
Figure PCTCN2014095990-appb-000003
发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第一方面或第一方面的第一种至第三种任意一种可能的实现方式，在第六种可能的实现方式中，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述移动终端将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
第二方面提供一种移动终端，包括：
第一获取模块，用于在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，接收到辅助全球导航卫星系统AGNSS错误消息；
第二获取模块，用于根据所述第一获取模块获取的所述相邻小区的基站信息获取AGNSS辅助数据；
定位模块，用于根据所述第二获取模块获取的所述AGNSS辅助数据进行定位。
结合第二方面，在第一种可能的实现方式中，
所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
结合第二方面或者第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第一获取模块包括：
第一获取单元，用于获取所述相邻小区的广播信息并根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
结合第二方面或者第二方面的第一种可能的实现方式，在第三种可能的实现方式中，所述第一获取模块包括：
第二获取单元，用于获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息，所述信号强度信息包括接收信号强度指示和参考信 号接收功率中的任意一个。
结合第二方面或者第二方面的第一种至第三种任意一种可能的实现方式，在第四种可能的实现方式中，所述第二获取模块包括：
第一发送单元，用于将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
第一接收单元，用于在所述第一发送单元将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第二方面或者第二方面的第一种至第三种任意一种可能的实现方式，在第五种可能的实现方式中，所述第二获取模块包括：
获取单元，用于根据所述相邻小区的基站信息获取所述邻区小区的基站地理位置；
确定单元，用于根据所述获取单元获取的所述相邻小区的基站地理位置采用KNN算法确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000004
Figure PCTCN2014095990-appb-000005
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度；
第二发送单元，用于根据将所述确定单元确定的所述地理位置
Figure PCTCN2014095990-appb-000006
发送至AGNSS服务器；
第二接收单元，用于在所述第二发送单元发送所述地理位置
Figure PCTCN2014095990-appb-000007
后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第二方面或者第二方面的第一种至第三种任意一种可能的实现方式，在第六种可能的实现方式中，所述第二获取模块包括：
第三发送单元，用于将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
第三接收单元，用于在所述第三发送单元将所述相邻小区中全部小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
第三方面提供一种移动终端，，包括：收发器、存储器、处理器以及总线， 所述收发器、存储器以及处理器与所述总线连接，其中：
所述收发器用于接收或发送数据；
所述存储器用于存储程序，所述处理器用于调用所述程序执行以下操作：
在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息；
根据所述相邻小区的基站信息获取AGNSS辅助数据；
根据所述AGNSS辅助数据进行定位。
结合第三方面，在第一种可能的实现方式中，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
结合第三方面或者第三方面的第一种可能的实现方式，在第二种可能的实现方式中，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述处理器获取所述相邻小区的广播信息；
所述处理器根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
结合第三方面或者第三方面的第一种可能的实现方式，在第三种可能的实现方式中，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述处理器获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
所述处理器根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
结合第三方面或者第三方面的第一种至第三种任意一种可能的实现方式，在第四种可能的实现方式中，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述处理器将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第三方面或者第三方面的第一种至第三种任意一种可能的实现方式，在第五种可能的实现方式中，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述处理器根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
所述处理器根据所述相邻小区的基站地理位置采用K最邻近节点算法KNN确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000008
Figure PCTCN2014095990-appb-000009
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述处理器接收到的来自第i个相邻小区基站的信号强度。
所述处理器将确定的所述地理位置
Figure PCTCN2014095990-appb-000010
发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
结合第三方面或者第三方面的第一种至第三种任意一种可能的实现方式，在第六种可能的实现方式中，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述处理器将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
由上可见，在满足预设条件时，移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息；所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据；所述移动终端根据所述AGNSS辅助数据进行定位，由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息，可有效提高AGNSS的定位成功概率，还可以增强AGNSS的鲁棒性。
附图说明
图1为本发明实施例中定位方法的一个实施例示意图；
图2为本发明实施例中定位方法的另一个实施例示意图；
图3为本发明实施例中定位方法的另一个实施例示意图；
图4为本发明实施例中定位方法的另一个实施例示意图；
图5为本发明实施例中定位方法的另一个实施例示意图；
图6为本发明实施例中移动终端的一个实施例示意图；
图7为本发明实施例中移动终端的另一个实施例示意图；
图8为本发明实施例中移动终端的另一个实施例示意图；
图9为本发明实施例中移动终端的另一个实施例示意图；
图10为本发明实施例中移动终端的一个结构示意图。
具体实施方式
本发明实施例提供一种定位方法及移动终端，用于提高AGNSS的定位成功概率，增强AGNSS的鲁棒性。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的技术方案，可以应用于各种通信系统，例如：全球移动通信系统(英文全称：Global System for Mobi le Communicat ion，缩写：GSM)，码分多址(英文全称：Code Divis ion Mult iple Access，缩写：CDMA)系统，宽带码分多址(英文全称：Wideband Code Division Multiple Access，缩写：WCDMA)，通用分组无线业务(英文全称：General Packet Radio Service，缩写：GPRS)，长期演进(英文全称：Long Term Evolution，缩写：LTE)等。
基站，可以是GSM或CDMA中的基站(英文全称：Base Transceiver Station缩写：BTS)，也可以是WCDMA中的基站(Node B)，还可以是LTE中的演进型基站(英文全称：evolutional Node B，缩写：eNB或e-Node B)，本发明并不限定。
移动终端可以是手机或笔记本，也可以是车载电脑等，本发明并不限定。
请参阅图1，本发明实施例中定位方法的一个实施例包括：
101、在满足预设条件时，移动终端获取移动终端当前所处服务小区的相邻小区的基站信息；
在本文中，移动终端处于已开启AGNSS定位状态。
在本发明实施例中，基站信息包括但不限于：基站标识，接收信号强度(英 文全称：Received Signal Strength，缩写：RSS)，移动国家号码(英文全称：Mobile Country Code，缩写：MCC)，移动网络代码(英文全称：Mobile Network Code，缩写：MNC)或位置区码(英文全称：Location Area Code，缩写LAC)等，此处不做具体限定。
需要说明的是，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息，另外，预设的条件还可以包括其他内容，此处不做具体限定。
102、移动终端根据相邻小区的基站信息获取AGNSS辅助数据；
在本发明实施例中，针对移动终端的能力和对定位成功率、时延等的不同需求，可以采用不同方式根据相邻小区的基站信息获取所需的AGNSS辅助数据，其中AGNSS辅助数据包含历书、星历、时钟、多普勒频偏、码延迟、方位角或仰角中的至少一个。
在本发明实施例中，移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，可有效提高成功获取AGNSS辅助数据的概率，还可以增强AGNSS的鲁棒性。
103、移动终端根据AGNSS辅助数据进行定位。
在本发明实施例中，移动终端接收AGNSS服务器提供的AGNSS辅助数据后，移动终端中的GNSS根据辅助数据中的多普勒频偏或码延迟等信息进行定位。
由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
请参阅图2，本发明实施例中定位方法的另一个实施例包括：
201、在满足预设条件时，移动终端获取移动终端当前所处服务小区的相邻小区的基站信息；
在本发明中，移动终端处于已开启AGNSS定位状态。
需要说明的是，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息，另外，预设的条件还可以包括其他内容，此处不做具体限定。
需要说明的是，预设的网络制式可以是时分同步码分多址TD-SCDMA或其他4G网络制式等，此处不做具体限定。
可选的，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
需要说明的是，移动终端接收到的AGNSS错误消息还可以用于指示其他AGNSS错误原因，此处不做具体限定。
可选的，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述移动终端获取所述相邻小区的广播信息；
所述移动终端根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
进一步，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述移动终端获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
所述移动终端根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
202、移动终端将相邻小区中的一个小区的基站标识发送至AGNSS服务器；
需要说明的是，将相邻小区按优先级排序，可以根据基站信息数据库情况、基站信号强度强弱等对相邻小区进行优先级排列，此处不做具体限定。
在本发明实施例中，比如：初次可以将优先级最高的相邻小区的基站标识发送至AGNSS服务器，若移动终端没有成功接收到AGNSS辅助数据，则将下一优先级的相邻小区的基站标识发送至AGNSS服务器，重复此过程，直至移动终端成功收到AGNSS辅助数据。
203、移动终端接收到AGNSS服务器发送的AGNSS辅助数据；
在本发明实施例中，移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，有效提高 了AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
204、移动终端根据AGNSS辅助数据进行定位。
在本发明实施例中，移动终端接收AGNSS服务器提供的AGNSS辅助数据后，移动终端的GNSS根据辅助数据中的多普勒频偏、码延迟等信息进行搜星，定位。
由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
请参阅图3，本发明实施例中定位方法的另一个实施例包括：
301、在满足预设条件时，移动终端获取移动终端当前所处服务小区的相邻小区的基站信息；
本发明实施例具体可参阅图2实施例中的步骤201。
302、移动终端根据相邻小区的基站信息获取相邻小区的基站地理位置；
需要说明的是，相邻小区的基站地理位置可以直接从广播信息中提取(如CDMA网络)，也可以是采用Cel l-ID定位方法从第三方或本机存储的基站信息数据库中取得，此处不做具体限定。
303、移动终端根据相邻小区的基站地理位置采用K最邻近节点算法KNN算法确定移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000011
在本发明实施例中，
Figure PCTCN2014095990-appb-000012
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度。
304、移动终端将确定的地理位置
Figure PCTCN2014095990-appb-000013
发送至AGNSS服务器；
在本发明实施例中，与图2对应实施例不同的是，将移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000014
发送至AGNSS服务器。
305、移动终端接收到AGNSS服务器发送的AGNSS辅助数据；
306、移动终端根据AGNSS辅助数据进行定位。
由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之 于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
请参阅图4，本发明实施例中定位方法的另一个实施例包括：
401、在满足预设条件时，移动终端获取移动终端当前所处服务小区的相邻小区的基站信息；
本发明实施例具体可参阅图2实施例中的步骤201。
402、移动终端将相邻小区中全部小区的基站标识发送至AGNSS服务器；
在本发明实施例中，相邻小区中全部小区的基站标识包含了所有同制式、异制式的相邻小区的基站标识，以使得AGNSS服务器根据所有相邻小区的基站标识提供相应的AGNSS辅助数据。
在本发明实施例中，与图3对应的实施例不同的是，将所有相邻小区中全部小区的基站标识发送至AGNSS服务器。
403、移动终端接收到AGNSS服务器发送的AGNSS辅助数据；
403、移动终端根据AGNSS辅助数据进行定位。
由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
请参阅图5，本发明实施例中定位方法的一个具体应用场景实施例包括：
501、在满足预设条件时，移动终端获取移动终端当前所处服务小区的相邻小区的基站信息；
本发明实施例具体可参阅图2实施例中的步骤201。
502、移动终端获取相邻小区的广播信息和相邻小区的信号强度信息；
在本发明实施例中，移动终端监听当前所处服务小区的广播信息，从广播信息中的系统信息块(英文全称：System Information Block，缩写：SIB)中提取相邻小区的频点，移动终端在相邻小区的频点上监听相邻小区的广播信息，测量相邻小区的信号强度以获取邻区小区的信号强度信息。
在本发明实施例中，信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个。
503、移动终端根据相邻小区的广播信息和相邻小区的信号强度信息获取相邻小区的基站信息；
需要说明的是，可选的，所述移动终端根据所述相邻小区的广播信息获取所述相邻小区的基站信息，此处不做具体限定。
504、移动终端根据相邻小区的基站信息获取AGNSS辅助数据；
可选的，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述移动终端将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
在本发明实施例中，将邻居小区按优先级排序，比如：初次将优先级最高的相邻小区的基站标识发送至AGNSS服务器，若移动终端没有成功接收AGNSS辅助数据，则将下一优先级的相邻小区的基站标识发送至AGNSS服务器，重复此过程，直至移动终端成功收到AGNSS辅助数据。
需要说明的是，可以根据基站数据库情况，基站信号强度强弱等对相邻小区进行优先级排列，此处不做具体限定。
可选的，移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述移动终端根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
所述移动终端根据所述相邻小区的基站地理位置采用KNN算法确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000015
Figure PCTCN2014095990-appb-000016
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度。
所述移动终端将确定的所述地理位置
Figure PCTCN2014095990-appb-000017
发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
需要说明的是，相邻小区的基站地理位置可以直接从广播信息中提取(如CDMA网络)，也可以是采用Cell-ID定位方法从第三方或本机存储的基站信息 数据库中取得，此处不做具体限定。
可选的，移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据包括：
所述移动终端将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
在本发明实施例中，相邻小区中全部小区的基站标识包含了所有同制式、异制式的相邻小区的基站标识，以使得AGNSS服务器根据所有相邻小区的基站标识提供相应的AGNSS辅助数据。
505、移动终端根据AGNSS辅助数据进行定位。
由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高了AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
为便于更好的实施本发明实施例的上述相关方法，下面还提供用于配合上述方法的相关终端。
请参阅图6，本发明实施例中移动终端600的一个实施例包括：第一获取模块601，第二获取模块602和定位模块603。
第一获取模块601，用于在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，接收到辅助全球导航卫星系统AGNSS错误消息；
第二获取模块602，用于根据所述第一获取模块601获取的所述相邻小区的基站信息获取AGNSS辅助数据；
定位模块603，用于根据所述第二获取模块602获取的所述AGNSS辅助数据进行定位。
由于在本发明技术方案中在移动终端根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
请参阅图7，可选的，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
可选的，所述第一获取模块601包括第一获取单元6011。
第一获取单元6011，用于获取所述相邻小区的广播信息并根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
可选的，所述第一获取模块601包括第二获取单元6012。
第二获取单元6012，用于获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；。
可选的，所述第二获取模块602包括：第一发送单元6021和第一接收单元6022。
第一发送单元6021，用于将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
第一接收单元6022，用于在所述第一发送单元6021将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
请参阅图8，可选的，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
可选的，所述第一获取模块601包括第一获取单元6011。
第一获取单元6011，用于获取所述相邻小区的广播信息并根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
可选的，所述第一获取模块601包括第二获取单元6012。
该第二获取单元6012，用于获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个。
可选的，所述第二获取模块602包括：第一获取单元6031，确定单元6032，第二发送单元6033和第二接收单元6034。
获取单元6031，用于根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
确定单元6032，用于根据所述获取单元6031获取的所述相邻小区的基站地理位置采用KNN算法确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000018
Figure PCTCN2014095990-appb-000019
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区的基站信号强度；
第二发送单元6033，用于根据将所述确定单元6032确定的所述地理位置
Figure PCTCN2014095990-appb-000020
发送至AGNSS服务器；
第二接收单元6034，用于在所述第二发送单元6033发送所述地理位置
Figure PCTCN2014095990-appb-000021
后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
请参阅图9，可选的，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
可选的，所述第一获取模块601包括第一获取单元6011。
第一获取单元6011，用于获取所述相邻小区的广播信息并根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
可选的，所述第一获取模块601包括第二获取单元6012。
第二获取单元6012，用于获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个。
第二获取模块602，用于根据所述第一获取模601获取的所述相邻小区的基站信息获取AGNSS辅助数据；
所述第二获取模块602包括：第三发送单元6041和第三接收单元6042。
第三发送单元6041，用于将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
第三接收单元6042，用于在所述第三发送单元6041将所述相邻小区中全部小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所 述AGNSS辅助数据。
图6至图9所示的实施例从功能模块的角度对移动终端的具体结构进行了说明，以下结合图10的实施例从硬件角度对移动终端的具体结构进行说明：
请参阅图10，图10为本发明实施例提供的移动终端1000的一个结构示意图，包括收发器1001、存储器1002、处理器1003以及总线1004，所述收发器1001、存储器1002以及处理器1003与所述总线1004连接，其中：
所述收发器1001用于接收或发送数据；
所述存储器1002用于存储程序，所述处理器1003用于调用所述程序执行以下操作：
在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息；
根据所述相邻小区的基站信息获取AGNSS辅助数据；
根据所述AGNSS辅助数据进行定位。
可选的，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
可选的，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述处理器获取所述相邻小区的广播信息；
所述处理器根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
可选的，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
所述处理器获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
所述处理器根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
可选的，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据， 包括：
所述处理器将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
可选的，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述处理器根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
所述处理器根据所述相邻小区的基站地理位置采用K最邻近节点算法KNN确定所述移动终端当前所处的地理位置
Figure PCTCN2014095990-appb-000022
Figure PCTCN2014095990-appb-000023
其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述处理器接收到的来自第i个相邻小区基站的信号强度。
所述处理器将确定的所述地理位置
Figure PCTCN2014095990-appb-000024
发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
可选的，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
所述处理器将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
需要说明的是，在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。比如，在图10所述的实施例中没有详述的部分，可以参见上述图1到图9的定位方法或移动终端实施例的相关描述。
由上可见，本发明实施例中，在满足预设条件时，移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息；所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据；所述移动终端根据所述AGNSS辅助数据进行定位，由于在本发明技术方案中移动终端在根据当前所处服务小区的基站信息进行AGNSS定位失败后，利用相邻小区的基站信息获取AGNSS辅助数据，较之于现有技术仅使用当前服务小区的基站信息可有效提高AGNSS定位的成功概率，还可以增强AGNSS的鲁棒性。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (21)

  1. 一种定位方法，其特征在于，包括：
    在满足预设条件时，移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息；
    所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据；
    所述移动终端根据所述AGNSS辅助数据进行定位。
  2. 根据权利要求1所述的定位方法，其特征在于，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
  3. 根据权利要求1或2所述的定位方法，其特征在于，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
    所述移动终端获取所述相邻小区的广播信息；
    所述移动终端根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
  4. 根据权利要求1或2所述的定位方法，其特征在于，所述移动终端获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
    所述移动终端获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
    所述移动终端根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
  5. 根据权利要求1至4任一项所述的定位方法，其特征在于，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述移动终端将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
    所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  6. 根据权利要求1至4任一项所述的定位方法，其特征在于，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述移动终端根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
    所述移动终端根据所述相邻小区的基站地理位置采用K最邻近节点算法KNN确定所述移动终端当前所处的地理位置
    Figure PCTCN2014095990-appb-100001
    Figure PCTCN2014095990-appb-100002
    Figure PCTCN2014095990-appb-100003
    其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度；
    所述移动终端将确定的所述地理位置
    Figure PCTCN2014095990-appb-100004
    发送至AGNSS服务器；
    所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  7. 根据权利要求1至4任一项所述的定位方法，其特征在于，所述移动终端根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述移动终端将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
    所述移动终端接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  8. 一种移动终端，其特征在于，包括：
    第一获取模块，用于在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，接收到辅助全球导航卫星系统AGNSS错误消息；
    第二获取模块，用于根据所述第一获取模块获取的所述相邻小区的基站信息获取AGNSS辅助数据；
    定位模块，用于根据所述第二获取模块获取的所述AGNSS辅助数据进行定位。
  9. 根据权利要求8所述的移动终端，其特征在于，
    所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
  10. 根据权利要求8或9所述的移动终端，其特征在于，所述第一获取模块包括：
    第一获取单元，用于获取所述相邻小区的广播信息并根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
  11. 根据权利要求8或9所述的移动终端，其特征在于，所述第一获取模块包括：
    第二获取单元，用于获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个。
  12. 根据权利要求8至11任一项所述的移动终端，其特征在于，所述第二获取模块包括：
    第一发送单元，用于将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
    第一接收单元，用于在所述第一发送单元将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  13. 根据权利要求8至11任一项所述的移动终端，其特征在于，所述第二获取模块包括：
    获取单元，用于根据所述相邻小区的基站信息获取所述邻区小区的基站地理位置；
    确定单元，用于根据所述获取单元获取的所述相邻小区的基站地理位置采用KNN算法确定所述移动终端当前所处的地理位置
    Figure PCTCN2014095990-appb-100005
    Figure PCTCN2014095990-appb-100006
    Figure PCTCN2014095990-appb-100007
    其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述移动终端接收到的来自第i个相邻小区基站的信号强度。
    第二发送单元，用于根据将所述确定单元确定的所述地理位置
    Figure PCTCN2014095990-appb-100008
    发送至AGNSS服务器；
    第二接收单元，用于在所述第二发送单元发送所述地理位置
    Figure PCTCN2014095990-appb-100009
    后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  14. 根据权利要求8至11任一项所述的移动终端，其特征在于，所述第二获取模块包括：
    第三发送单元，用于将所述相邻小区中全部小区的基站标识发送至AGNSS 服务器；
    第三接收单元，用于在所述第三发送单元将所述相邻小区中全部小区的基站标识发送至AGNSS服务器后，接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  15. 一种移动终端，其特征在于，包括：收发器、存储器、处理器以及总线，所述收发器、存储器以及处理器与所述总线连接，其中：
    所述收发器用于接收或发送数据；
    所述存储器用于存储程序，所述处理器用于调用所述程序执行以下操作：
    在满足预设条件时，获取所述移动终端当前所处服务小区的相邻小区的基站信息，所述预设条件包括：所述移动终端在预设网络制式下所处的所述服务小区发生切换，或者，所述移动终端接收到辅助全球导航卫星系统AGNSS错误消息；
    根据所述相邻小区的基站信息获取AGNSS辅助数据；
    根据所述AGNSS辅助数据进行定位。
  16. 根据权利要求15所述的移动终端，其特征在于，所述AGNSS错误消息用于指示AGNSS服务器未获取到所述AGNSS辅助数据。
  17. 根据权利要求15或16所述的移动终端，其特征在于，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
    所述处理器获取所述相邻小区的广播信息；
    所述处理器根据所述相邻小区的广播信息获取所述相邻小区的基站信息。
  18. 根据权利要求15或16所述的移动终端，其特征在于，所述处理器获取所述移动终端当前所处服务小区的相邻小区的基站信息，包括：
    所述处理器获取所述相邻小区的广播信息和所述相邻小区的信号强度信息，所述信号强度信息包括接收信号强度指示和参考信号接收功率中的任意一个；
    所述处理器根据所述相邻小区的广播信息和所述相邻小区的信号强度信息获取所述相邻小区的基站信息。
  19. 根据权利要求15至18任一项所述的移动终端，其特征在于，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述处理器将所述相邻小区中的一个小区的基站标识发送至AGNSS服务器；
    所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  20. 根据权利要求15至18任一项所述的移动终端，其特征在于，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述处理器根据所述相邻小区的基站信息获取所述相邻小区的基站地理位置；
    所述处理器根据所述相邻小区的基站地理位置采用K最邻近节点算法KNN确定所述移动终端当前所处的地理位置
    Figure PCTCN2014095990-appb-100010
    Figure PCTCN2014095990-appb-100011
    Figure PCTCN2014095990-appb-100012
    其中，pi表示第i个相邻小区的基站地理位置；ωi表示第i个相邻小区的基站地理位置的权重；ri表示所述处理器接收到的来自第i个相邻小区基站的信号强度；
    所述处理器将确定的所述地理位置
    Figure PCTCN2014095990-appb-100013
    发送至AGNSS服务器；
    所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
  21. 根据权利要求15至18任一项所述的移动终端，其特征在于，所述处理器根据所述相邻小区的基站信息获取AGNSS辅助数据，包括：
    所述处理器将所述相邻小区中全部小区的基站标识发送至AGNSS服务器；
    所述处理器接收到所述AGNSS服务器发送的所述AGNSS辅助数据。
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US20170367064A1 (en) 2017-12-21

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