WO2014067345A1 - Procédé de positionnement satellitaire, appareil et système - Google Patents

Procédé de positionnement satellitaire, appareil et système Download PDF

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Publication number
WO2014067345A1
WO2014067345A1 PCT/CN2013/083015 CN2013083015W WO2014067345A1 WO 2014067345 A1 WO2014067345 A1 WO 2014067345A1 CN 2013083015 W CN2013083015 W CN 2013083015W WO 2014067345 A1 WO2014067345 A1 WO 2014067345A1
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WO
WIPO (PCT)
Prior art keywords
satellite data
location
satellite
terminal
sharing center
Prior art date
Application number
PCT/CN2013/083015
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English (en)
Chinese (zh)
Inventor
魏向林
黄小燕
王渡华
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2014067345A1 publication Critical patent/WO2014067345A1/fr

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Classifications

    • 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
    • G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
    • 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
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/40—Correcting position, velocity or attitude
    • G01S19/41—Differential correction, e.g. DGPS [differential GPS]
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
    • G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type

Definitions

  • a location based service refers to a value-added service in which a mobile network acquires location information of a mobile terminal through a specific positioning technology, thereby providing an additional service for the terminal user, and can be widely applied to emergency rescue.
  • mobile positioning technology has received more and more attention, especially the growing maturity of 3G and 4G technologies has provided support for the development of mobile positioning technology.
  • A-GPS Assisted Global Positioning System
  • GPS Global Positioning System
  • the advantage of this technology is mainly in its positioning accuracy. It can reach 5 ⁇ 10m in normal working environment in outdoor and other open areas. It is the positioning technology with the highest positioning accuracy.
  • using the auxiliary information transmitted from the network can enhance the Time To First Fix (TTFF), and the time for capturing the GPS signal for the first time is greatly reduced, generally only a few seconds, unlike the global positioning system.
  • the first capture time Global Position System, GPS for short
  • the first capture time may take 2 to 3 minutes (min).
  • the A-GPS positioning response time is between 3 and 10 seconds (s).
  • A-GPS obtains the location information of the mobile terminal through the mobile terminal and the GPS-assisted positioning information, so it is necessary to add an A-GPS receiver module (or an external A-GPS receiver) in the mobile terminal. ), at the same time to build a location server on the network, reference receivers and other equipment.
  • the positioning procedure of A-GPS is as follows: (1) The mobile terminal first transmits its own base station address to the location server through the network.
  • the location server transmits satellite auxiliary data related to the location according to the approximate location of the terminal, for example: GPS ephemeris.
  • the terminal's A-GPS module can quickly capture the satellite to improve the first lock time (ie, TTFF) capability of the GPS signal, and receive the GPS original signal. After demodulating the signal, the terminal is calculated.
  • the pseudorange of the satellite where the pseudorange is the distance affected by various GPS errors.
  • the terminal completes the calculation of the precise position based on the measured GPS pseudorange and GPS satellite auxiliary information.
  • the reference receiver obtains reference data (e.g., clock, ephemeris, available constellation, reference location, etc.) from the satellite in real time, and provides it to the location server over the network.
  • the location server provides A-GPS assistance data to the terminal through the wireless network to enhance its TTTF, thereby greatly improving the sensitivity of the A-GPS receiving module.
  • the shortcomings of the current practical application of AGPS services are as follows: 1. The problem of reference receiver distribution, because the number of reference receivers is small and unevenly distributed, this will result in inaccurate and accurate data, and thus the positioning speed is slow.
  • the construction of the reference receiver itself requires large-scale capital investment, or lease. In view of the low accuracy of data and the large construction investment in the AGPS service in the related art, no effective solution has been proposed yet.
  • the present invention provides a satellite positioning solution to solve at least the above problems, in view of the problem that the data in the AGPS service is low in accuracy and the construction investment is large.
  • a satellite positioning method including: a terminal transmitting its own location-related information to a satellite data sharing center on a network side, where the satellite data sharing center is used to share the received Satellite data; the terminal receives satellite data from a location corresponding to the location related information of the satellite data sharing center; the terminal performs satellite positioning according to the satellite data, and acquires an accurate location of the terminal and the The updated satellite data corresponding to the precise location; the terminal transmitting the precise location and the updated satellite data corresponding to the precise location to the satellite data sharing center.
  • the terminal performs normal GPS satellite positioning, and acquires an accurate location of the terminal and a satellite corresponding to the precise location.
  • Data the terminal transmits the precise location and satellite data corresponding to the precise location to the satellite data sharing center.
  • the satellite data comprises at least one of the following: GPS capture auxiliary information, GPS positioning auxiliary information, GPS sensitivity auxiliary information, GPS satellite working status information, GPS almanac and correction data, GPS ephemeris, GPS navigation message.
  • the location related information includes at least one of: a base station identifier of the terminal, a WiFi hotspot information of the terminal, a MAC address of the terminal, and an RFID of the terminal.
  • a satellite positioning method including: receiving, by a satellite data sharing center on a network side, a precise location sent by a plurality of terminals and satellite data corresponding to the precise location, where a satellite data sharing center for sharing received satellite data; the satellite data sharing center receiving location related information from the terminal; the satellite data sharing center querying a satellite corresponding to the location related information according to the location related information Data, and transmitting the satellite data to a sender terminal corresponding to the location related information.
  • the method further includes: the satellite data sharing center to send the received multiple terminals
  • the precise location and the satellite data corresponding to the precise location are written to the shared database.
  • a satellite positioning apparatus which is located in a terminal, and includes: a first sending module, configured to send its location related information to a satellite data sharing center on a network side, where The satellite data sharing center is configured to share the received satellite data; the first receiving module is configured to receive satellite data from a position corresponding to the position related information of the satellite data sharing center; and the satellite positioning module is set according to the The satellite data is used for satellite positioning, and acquires the precise location of the terminal and the updated satellite data corresponding to the precise location; the second sending module is configured to set the precise location and the updated satellite data corresponding to the precise location Sent to the satellite data sharing center.
  • the satellite positioning module is further configured to perform normal GPS satellite positioning, and acquire the precise location of the terminal.
  • the second sending module is further configured to send the precise location and the satellite data corresponding to the precise location to the satellite data sharing center.
  • a satellite positioning apparatus is provided.
  • the satellite data sharing center located on the network side includes: a second receiving module, configured to receive an accurate position sent by the multiple terminals and the precise The satellite data corresponding to the location, wherein the satellite data sharing center is used to share the received satellite data; the third receiving module is configured to receive location related information from the terminal; and the third sending module is configured to be related according to the location The information queries the satellite data of the location corresponding to the location related information, and sends the satellite data to the sender terminal corresponding to the location related information.
  • the device further includes: a writing module, configured to write the received precise location of the plurality of terminals and the satellite data corresponding to the precise location into a shared database.
  • a satellite positioning system including the above-mentioned satellite positioning device located in a terminal, and further comprising the above-mentioned satellite positioning device located at a satellite data sharing center on the network side.
  • the terminal transmits its own location related information to the satellite data sharing center on the network side, wherein the satellite data sharing center is used to share the received satellite data; the terminal receives the above location from the satellite data sharing center.
  • Corresponding information corresponds to the satellite data of the location; the terminal performs satellite positioning according to the satellite data, and acquires the precise location of the terminal and the updated satellite data corresponding to the precise location; the terminal sends the precise location and the updated satellite data corresponding to the precise location.
  • FIG. 1 is a flow chart of a satellite positioning method according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a satellite positioning apparatus according to an embodiment of the present invention
  • FIG. 3 is another satellite according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of another satellite positioning apparatus according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing a preferred structure of another satellite positioning apparatus according to an embodiment of the present invention
  • FIG. 7 is a block diagram of a satellite data transmission architecture in accordance with a preferred embodiment of the present invention
  • FIG. 8 is a flow chart showing a process of transmitting satellite data in a handset in accordance with a preferred embodiment of the present invention.
  • Step S102 the terminal sets its own location.
  • the related information is sent to the satellite data sharing center on the network side, wherein the satellite data sharing center is used to share the received satellite data; and in step S104, the terminal receives the satellite data corresponding to the location-related information from the satellite data sharing center;
  • S106 The terminal performs satellite positioning according to the satellite data, and acquires an accurate location of the terminal and updated satellite data corresponding to the precise location.
  • Step S108 the terminal sends the precise location and the updated satellite data corresponding to the precise location to the satellite data. Sharing center.
  • the terminal acquires corresponding satellite data from the satellite data sharing center according to its own position related information, performs satellite positioning according to the satellite data, and obtains its own precise position and corresponding update after successful positioning.
  • the satellite data is sent to the satellite data sharing center, and the reference satellite receiver is not needed to be built.
  • the data collected by the user terminal is shared by the satellite data sharing center on the network side, and the fast satellite positioning of the terminal can be realized, and due to the large number of terminals,
  • the distribution range is wide, which solves the problem that the data in the AGPS service in the related technology has low accuracy and large construction investment, enhances the TTTF of the positioning service, improves the positioning service precision, and reduces the construction cost.
  • the terminal may send the precise location and the satellite data corresponding to the precise location to the satellite data sharing center, so that other terminals in the vicinity of the terminal Use this information for fast satellite positioning.
  • the satellite data may include: GPS capture auxiliary information, GPS positioning auxiliary information, GPS sensitivity auxiliary information, GPS satellite working status information, GPS almanac and correction data, GPS ephemeris, GPS navigation message, and the like.
  • the location-related information sent by the terminal to the satellite data sharing center may be the base station identifier (Cell ID) of the terminal, or may be the wireless fidelity (Wireless Fidelity for short) hotspot information of the terminal. Or, it may be a Media Access Control (MAC) address, a Radio Frequency ID (RFID), or the like, and other location-related device information that reflects the location of the terminal. In this way, the flexibility of the use of the solution is improved.
  • a satellite positioning device is provided, which is located in the terminal, and is configured to implement the above-described embodiments and preferred embodiments, and has not been described again.
  • module may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • 2 is a structural block diagram of a satellite positioning apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: a first transmitting module 22, a first receiving module 24, a satellite positioning module 26, and a second transmitting module 28, Detailed description of each module.
  • the first sending module 22 is configured to send its own location related information to the satellite data sharing center on the network side, wherein the satellite data sharing center is configured to share the received satellite data; the first receiving module 24, and the first sending The module 22 is connected to be configured to receive satellite data from a location corresponding to the location related information of the satellite data sharing center.
  • the satellite positioning module 26 is connected to the first receiving module 24 and configured to perform satellite data according to the first receiving module 24. Positioning the satellite, and acquiring the precise location of the terminal and the updated satellite data corresponding to the precise location; the second transmitting module 28 is coupled to the satellite positioning module 26 and configured to update the precise location and the precise location of the satellite positioning module 26 The satellite data is sent to the satellite data sharing center.
  • the first sending module 22 of the terminal sends its own location-related information to the satellite data sharing center on the network side through the above module, and the first receiving module 24 obtains corresponding satellite data from the satellite data sharing center, and the satellite positioning module 26 Performing satellite positioning according to the satellite data, and transmitting, by the second sending module 28, the precise position acquired by the positioning and the corresponding updated satellite data to the satellite data sharing center, without separately constructing the reference receiver, through the network side
  • the satellite data sharing center shares the data collected by the user terminal, which can realize the fast satellite positioning of the terminal, and because of the large number of terminals and wide distribution range, the data accuracy and construction in the AGPS service in the related technology are solved.
  • the satellite positioning module 26 may also be configured to perform conventional GPS satellite positioning and acquire the precise location of the terminal.
  • the second sending module 28 may be further configured to send the precise location and the satellite data corresponding to the precise location to the satellite data sharing center.
  • FIG. 3 is a flowchart of another satellite positioning method according to an embodiment of the present invention. As shown in FIG.
  • the method includes the following steps: Step S302, Network The satellite data sharing center of the side receives the precise location sent by the multiple terminals and the satellite data corresponding to the precise location, where the satellite data sharing center is used to share the received satellite data; Step S304, the satellite data sharing center receives the terminal data from the terminal Position-related information; Step S306, the satellite data sharing center queries the satellite data of the location corresponding to the location-related information according to the location-related information, and transmits the satellite data to the sender terminal corresponding to the location-related information.
  • the satellite data sharing center acquires the precise location of the body and the corresponding satellite data sent by the multiple terminals, and then receives the location-related information sent by the terminal, and finds the related information through the location.
  • the satellite data corresponding to the location, and the satellite data is sent to the sender terminal of the location-related information, and the referenced receiver is not separately constructed, and the data collected by the user terminal is shared by the satellite data sharing center on the network side, thereby realizing the terminal.
  • the rapid satellite positioning and because of the large number of terminals and wide distribution range, solves the problem that the data in the AGPS service in the related technology has low accuracy and large construction investment, enhances the TTTF of the positioning service, and improves the accuracy of the positioning service. And reduce construction costs.
  • the satellite data sharing center may also write the precise location sent by the received multiple terminals and the satellite data corresponding to the precise location into the shared database for solid storage. In this way, the security of the data is improved.
  • the satellite data may include: GPS capture auxiliary information, GPS positioning auxiliary information, GPS sensitivity auxiliary information, GPS satellite working status information, GPS almanac and correction data, GPS ephemeris, GPS navigation message, and the like.
  • the location related information sent by the terminal to the satellite data sharing center may be the base station identifier (for example, Cell ID) of the terminal, or may be the WiFi hotspot information of the terminal, or the MAC address of the terminal, etc. Information that reflects its location. In this way, the flexibility of the use of the solution is improved.
  • the satellite data sharing center is located on the network side, and the device is configured to implement the above embodiment and the preferred embodiment.
  • the term "module" can implement software for a predetermined function and / Or a combination of hardware.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • 4 is a structural block diagram of another satellite positioning apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes: a second receiving module 42, a third receiving module 44, and a third transmitting module 46, Each module is described in detail.
  • the second receiving module 42 is configured to receive the precise location sent by the multiple terminals and the satellite data corresponding to the precise location, where the satellite data sharing center is used to share the received satellite data; and the third receiving module 44 is configured to Receiving the location-related information from the terminal; the third sending module 46 is connected to the second receiving module 42 and the third receiving module 44, and is configured to query the satellite data of the location corresponding to the location-related information according to the location-related information, and send the satellite data The sender terminal corresponding to the location related information.
  • the second receiving module 42 of the satellite data sharing center acquires the precise location of the body and the corresponding satellite data sent by the plurality of terminals, and then receives the location related information sent by the terminal through the third receiving module 44.
  • FIG. 5 is a block diagram of a preferred structure of another satellite positioning apparatus according to an embodiment of the present invention. As shown in FIG.
  • the apparatus may further include: a writing module 52 connected to the second receiving module 42 and configured to receive The precise location and precise location of the satellite data sent by multiple terminals are written to the shared database.
  • a satellite positioning system is also provided.
  • FIG. 6 is a structural block diagram of a satellite positioning system according to an embodiment of the present invention. As shown in FIG. 6, the system includes the above-mentioned terminal in FIG. The satellite positioning device 20 further includes a satellite positioning device 40 located at the satellite data sharing center as shown in FIG. 4 or 5. The following description will be made in conjunction with the preferred embodiments, and the following preferred embodiments incorporate the above-described embodiments and preferred embodiments thereof.
  • the mobile terminal field and the satellite positioning technology field are taken as an example for illustration, and a satellite data transmission scheme on a mobile terminal is provided, which provides a method for sharing satellite data, and effectively enables the mobile terminal.
  • Get the latest satellite assistance data The method is to add a satellite data sharing module to the mobile terminal (implementing the functions of the first sending module 22, the first receiving module 24, and the second sending module 28).
  • a satellite data sharing center is set up in the network to provide satellite auxiliary data. Through the satellite data sharing center, the latest satellite data can be exchanged and shared between mobile terminals.
  • FIG. 7 is a schematic diagram of a satellite data transmission architecture according to a preferred embodiment of the present invention. Referring to the architecture of FIG.
  • the satellite positioning scheme in the preferred embodiment may include the following steps: Step S702: The positioning terminal starts satellite positioning; Step S704, by satellite The data sharing module collects the positioning terminal and the location-related information (for example, Cell Identity (Cell Identity), WiFi hotspot information, Media Access Control (MAC) address, etc.); Step S706, The satellite data sharing module and the satellite data sharing center perform wireless air communication, and transmit location related information of the positioning terminal to the center; Step S708, the satellite data sharing center parses the position related information, obtains a rough position, and queries the latest satellite near the rough position in the database.
  • Step S702 The positioning terminal starts satellite positioning
  • Step S704 by satellite The data sharing module collects the positioning terminal and the location-related information (for example, Cell Identity (Cell Identity), WiFi hotspot information, Media Access Control (MAC) address, etc.);
  • Step S706 The satellite data sharing module and the satellite data sharing center perform wireless air communication, and transmit location related information of the positioning terminal to the center;
  • Step S708 the satellite data sharing center par
  • step S710 the satellite data sharing center returns the latest satellite data to the positioning terminal by wireless air communication; and in step S712, the satellite data sharing module transmits the acquired latest satellite data to the satellite positioning module (implementing the function of the satellite positioning module 26)
  • the satellite positioning module starts fast satellite positioning according to the latest satellite data, and acquires the precise location of the terminal and the updated satellite data; (If the latest satellite data in the vicinity cannot be acquired through the satellite sharing center in steps S708 and S710, then the satellite positioning module Ordinary satellite positioning can be started to obtain the precise location of the terminal and the updated satellite data.
  • the satellite data sharing module transmits the precise location and the updated satellite data to the satellite data sharing center record for use by other terminals.
  • Step S802 a positioning service on the mobile phone initiates GPS satellite positioning;
  • Step S804 the satellite data sharing module receives the positioning request, and calls the relevant API provided by the mobile phone to acquire the base station number of the mobile phone, for example, CelllD.
  • Step S806 the satellite data sharing module sends the information such as CelllD to the satellite data sharing center through the wireless data link;
  • Step S808, the satellite data sharing center receives the CelllD, and queries the latest satellite data near the CelllD.
  • step S810 the satellite data sharing center returns the latest satellite data to the mobile phone; step S812, after receiving the satellite data, the satellite data sharing module initiates fast GPS positioning to the satellite positioning module; step S814, satellite positioning Module acquires precise location and updated satellite data via GPS satellite system
  • step S816 the satellite data sharing module transmits the precise location and the updated satellite data to the satellite data sharing center via the wireless data link; step S818, satellite data sharing The center records the location and updated satellite data (eg, ephemeris data). If the data is not queried in step S808, steps S810 and S812 may be changed as follows, and the remaining steps are unchanged. Step S810, the satellite data sharing center does not query the nearby ephemeris data, and returns the result to the mobile phone. In step S812, the satellite data sharing module initiates normal GPS positioning to the satellite positioning module.
  • satellite data sharing module initiates normal GPS positioning to the satellite positioning module.
  • the ephemeris data can be acquired without relying on a Position Determination Entity (PDE) (ie, a reference receiver), without renting or establishing a satellite reference receiving network.
  • PDE Position Determination Entity
  • software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
  • a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
  • the technical solution of the embodiments of the present invention can be applied to the location service field of a mobile network, and solves the problem that the data accuracy and the construction investment in the AGPS service in the related art are relatively large, and the TTTF of the location service is enhanced. Improve positioning service accuracy and reduce construction costs.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de positionnement satellitaire, un appareil et un système, le procédé comprenant : l'envoi par un terminal d'informations de position à un centre d'échange de données satellitaires sur un côté réseau, le centre d'échange de données satellitaires étant utilisé pour partager des données satellitaires reçues (S102); la réception par le terminal des données satellitaires d'une position correspondant aux informations de position provenant du centre d'échange de données satellitaires (S104); l'exécution par le terminal d'un positionnement satellitaire en fonction des données satellitaires, et l'obtention d'une position précise du terminal et de données satellitaires mises à jour correspondant à la position précise (S106); l'envoi par le terminal d'envoi de la position précise et des données satellitaires mises à jour correspondant à la position précise au centre d'échange de données satellitaires (S108). La présente invention permet d'augmenter la précision de données AGPS, de diminuer les coûts de construction et d'augmenter le TTFF d'un service de positionnement.
PCT/CN2013/083015 2012-10-30 2013-09-05 Procédé de positionnement satellitaire, appareil et système WO2014067345A1 (fr)

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CN201210424727.3A CN103792560B (zh) 2012-10-30 2012-10-30 卫星定位方法、装置及系统
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CN113994724A (zh) * 2019-07-31 2022-01-28 索尼集团公司 电子设备、无线通信方法和计算机可读存储介质

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CN106707319A (zh) * 2015-07-24 2017-05-24 中兴通讯股份有限公司 一种定位方法和终端设备
CN105142114A (zh) * 2015-08-14 2015-12-09 西安大唐电信有限公司 一种提高基于obd接口的车载终端定位速度的方法
CN107766765A (zh) * 2017-11-15 2018-03-06 北京东方联星科技有限公司 一种星历无线加载终端
CN111694314A (zh) * 2020-07-19 2020-09-22 深圳市新时空智能系统有限公司 一种多卫星设备信号接收终端及其转发设备

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