WO2015007223A1 - 一种终端定位方法、终端及定位服务器 - Google Patents

一种终端定位方法、终端及定位服务器 Download PDF

Info

Publication number
WO2015007223A1
WO2015007223A1 PCT/CN2014/082394 CN2014082394W WO2015007223A1 WO 2015007223 A1 WO2015007223 A1 WO 2015007223A1 CN 2014082394 W CN2014082394 W CN 2014082394W WO 2015007223 A1 WO2015007223 A1 WO 2015007223A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
terminal
pseudolite
auxiliary data
server
Prior art date
Application number
PCT/CN2014/082394
Other languages
English (en)
French (fr)
Inventor
全海洋
王可
张英
李艳华
刘建华
Original Assignee
电信科学技术研究院
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 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2015007223A1 publication Critical patent/WO2015007223A1/zh

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/10Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
    • G01S19/11Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining 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
    • G01S19/42Determining position
    • G01S19/45Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
    • G01S19/46Determining 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Definitions

  • Terminal positioning method, terminal and positioning server The present application claims to be submitted to the Chinese Patent Office on July 18, 2013, the application number is 201310303594.9, and the invention is entitled "A Terminal Positioning Method, Terminal and Location Server" Chinese Patent Application Priority is hereby incorporated by reference in its entirety.
  • the present invention relates to a positioning technology, and in particular, to a terminal positioning method, a terminal, and a positioning server.
  • Beidou navigation interface file With the disclosure of the Beidou navigation interface file, more and more applications are applied to the positioning through the Beidou navigation system. Considering that it is difficult to receive navigation satellite signals in indoor or building dense areas, the positioning accuracy is very poor, and the pseudo Beidou satellites are born. This pseudo-Dipper satellite is deployed to transmit satellite signals in places where indoor satellite signals are weak.
  • the Beidou client needs to download the pseudo-satellite information and the radio frequency (RF) map in advance (pre-measure the intensity of the signal of each pseudo-satellite at each location to establish a map model) for positioning.
  • RF radio frequency
  • the current information on pseudolites and their RF maps are downloaded to the terminal by the Beidou user terminal in advance via a network (such as a wired network).
  • a network such as a wired network.
  • it is positioned based on the information that has been downloaded (pseudo satellite information and RF map information).
  • A-GNSS Assisted-Global Navigation Satellite System
  • the basic process of the locating process is as follows: The network acquires the positioning capability of the UE (User Equipment, the user equipment, the terminal), the network provides the auxiliary data for the UE, and the positioning result is calculated.
  • the flow of A-GNSS positioning is given in three scenarios below.
  • Scenario 1 UE-originated positioning process for itself, when the UE only supports E-SMLC based A-GNSS (A-GNSS positioning method based on E-SMLC positioning, that is, location calculation is performed in E-SMLC, E-SMLC, The Evoved Serving Mobile Location Center, the evolving service mobile location center, locates the method, and triggers this process when you want to locate itself.
  • A-GNSS positioning method based on E-SMLC positioning that is, location calculation is performed in E-SMLC, E-SMLC,
  • the Evoved Serving Mobile Location Center the evolving service mobile location center, locates the method, and triggers this process when you want to locate itself.
  • the process includes the following steps:
  • Step S101 The UE initiates a positioning request to the Mobile Management Entity (MME) through the Non-Access Stratum (N AS) message, and requests to obtain its own location information.
  • MME Mobile Management Entity
  • N AS Non-Access Stratum
  • Step S102 The MME initiates a location request to the E-SMLC.
  • Steps S103a, S103b The E-SMLC queries and acquires the positioning capability information of the UE.
  • Steps S104a, S104b The UE requests and obtains the auxiliary data provided by the E-SMLC;
  • Steps S105a, S105b At the request of the E-SMLC, the UE performs A-GNSS related measurement by using the auxiliary information, and sends the measurement result to the E-SMLC;
  • Step S106 The E-SMLC calculates the location information of the UE according to the measurement result of the UE and other aspects of the input.
  • Step S107 The E-SMLC sends the positioning result (location information) to the MME;
  • Step S108 The MME sends the positioning result (location information) to the UE.
  • Scenario 2 A UE-initiated assistance information request process.
  • the process is triggered when the auxiliary data is acquired. As shown in FIG. 2, the process includes the following steps. :
  • Step S201 The UE initiates a positioning request to the MME by using a NAS layer message.
  • Step S202 The MME initiates a location request to the E-SMLC.
  • Steps S203a and S203b The E-SMLC queries and acquires the positioning capability information of the UE.
  • Steps S204a, S204b The UE requests and obtains the auxiliary data provided by the E-SMLC.
  • the UE will use the obtained auxiliary information for GNSS measurement. Since the UE based A-GNSS (also referred to as UE based) positioning mode is used, the measurement result does not need to be reported to the E-SMLC, but the UE performs local calculation by itself. Your own location information.
  • UE based A-GNSS also referred to as UE based
  • Scenario 3 The process of locating the UE initiated by the network side. When the location process is initiated by the network, this process is used. As shown in Figure 3, the following steps are included:
  • Step S301 Locating the demand side (LCS client, Location Services client)
  • the MME initiates a positioning request, and hopes to obtain location information of the UE;
  • Step S302 The MME initiates a location request to the E-SMLC.
  • Steps S303a, S303b The E-SMLC queries and acquires the positioning capability information of the UE.
  • Steps S304a, S304b The UE requests and obtains the auxiliary data provided by the E-SMLC;
  • E-SMLC based A-GNSS also known as E-SMLC based positioning method
  • Steps S305a, S305b At the request of the E-SMLC, the UE performs A-GNSS measurement by using the auxiliary information, and sends the measurement result to the E-SMLC;
  • Step S306 The E-SMLC calculates the location information of the UE according to the measurement result of the UE and other aspects.
  • Step S307 The E-SMLC requests the UE to provide location information.
  • Step S308 Perform A-GNSS measurement by using the auxiliary information, and perform local calculation to obtain own location information.
  • the E-SMLC has obtained the location information of the UE, and proceeds to steps S310-S311:
  • Step S310 The E-SMLC sends the positioning result (location information) to the MME.
  • Step S311 The MME sends the positioning result (location information) to the positioning demand side (LCS client).
  • the positioning center is outside the Radio Network Controller (RNC), that is, the Stand-Alone Service Location Center (SAS) and the RNC are connected through the IuPC interface to communicate.
  • RNC Radio Network Controller
  • SAS Stand-Alone Service Location Center
  • the other is the RNC's internal implementation of the positioning server.
  • the RNC-based A-GANSS Assisted-Galileo and Additional Navigation Satellite Systems positioning process is shown in Figure 4, including:
  • Step S401 The core network initiates a positioning request to the RNC.
  • Step S402 The RNC triggers the UE to perform GANSS related measurement, where relevant GANSS auxiliary data is provided;
  • Step S403 4 ⁇ measurement result or location information on the UE;
  • Step S404 The RNC reports the location evaluation result to the core network (Core network).
  • the SAS-based A-GANSS positioning process is shown in Figure 5, including:
  • Step S501 The core network sends a message for starting the positioning to the RNC.
  • Step S502 The RNC initiates a positioning initialization request to the SAS.
  • Step S503 The SAS feeds back a positioning activation request, where the GANSS auxiliary data may be carried;
  • Step S504 The RNC triggers the UE to perform GANSS related measurement, where relevant GANSS auxiliary data is provided;
  • Step S505 The UE performs measurement result or location information to the RNC;
  • Step S506 The RNC sends the information reported by the UE to the SAS.
  • Step S507 The SAS feeds back the final location evaluation result to the RNC;
  • Step S508 The RNC sends the final location evaluation result to the core network.
  • the RNC may send the periodic measurement result or the location result of the UE to the SAS, and the SAS performs multiple location evaluation and sends the location information to the RNC.
  • the RNC sends the last location information to the core network when the reported time arrives.
  • the related information needs to be downloaded from the network in advance and cannot be updated in real time. For example, if the pseudo-satellite is newly deployed or dismantled, the location is moved, and the map information downloaded by the client is not updated in time, problems such as inaccurate positioning may occur.
  • the embodiment of the invention provides a terminal positioning method, a terminal and a positioning server, so as to improve the accuracy of terminal positioning.
  • a terminal positioning method provided by an embodiment of the present invention includes:
  • the positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning, and determines that the auxiliary data of the pseudo satellite needs to be sent to the terminal;
  • the positioning server sends the auxiliary data of the pseudolite to the terminal, and the terminal performs positioning measurement according to the auxiliary data of the pseudolite.
  • the positioning server determines that the terminal can use the pseudo satellite positioning, the auxiliary data of the pseudo satellite of the terminal is updated, so that the positioning inaccuracy due to the inaccuracy of the auxiliary data of the pseudo satellite is avoided.
  • the positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, and specifically includes: Serving a radio network controller (Serving -RNC, SRNC) It is determined that the terminal supporting pseudolite positioning can use pseudolite positioning based on the location of the cell and the pseudolite deployment within the coverage of the cell.
  • Serving a radio network controller Serving a radio network controller (Serving -RNC, SRNC) It is determined that the terminal supporting pseudolite positioning can use pseudolite positioning based on the location of the cell and the pseudolite deployment within the coverage of the cell.
  • the positioning server sends the auxiliary data of the pseudolite to the terminal, which specifically includes:
  • the SRNC transmits the auxiliary data of the pseudolite to the terminal in the cell by broadcasting.
  • the positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, and determines that the auxiliary data of the pseudo-satellite needs to be sent to the terminal, which specifically includes:
  • the positioning server After receiving the auxiliary data request message, the positioning server determines, according to the support situation of the terminal using the pseudo-satellite positioning and the serving cell information of the terminal in the auxiliary data request message, that the terminal can use the pseudo-satellite positioning, and determines that the pseudo-satellite needs to be sent to the terminal.
  • the positioning server sends the auxiliary data of the pseudolite to the terminal, and the specific information includes: the positioning server carries the auxiliary data of the pseudolite in the auxiliary data and sends the data to the terminal.
  • the positioning server when the positioning server is the E-SMLC or the SRNC of the cell where the terminal is located, the positioning server receives the auxiliary data request message, specifically:
  • the location server When the location server is the SAS, the location server receives the assistance data request message, specifically: the location server receives the assistance data request message sent by the SRNC of the cell where the terminal is located.
  • the positioning server can obtain the support of the terminal for using pseudo-satellite positioning in different ways:
  • the positioning server When the positioning server is an E-SMLC, the positioning server further includes: before receiving the auxiliary data request message:
  • the positioning server receives the positioning capability report message sent by the terminal, and determines, according to the positioning capability report message, the terminal's support for the pseudolite positioning used;
  • the positioning server After the positioning server is the SANC or the SRNC of the cell where the terminal is located, the positioning server, after receiving the auxiliary data request message, further includes: the positioning server acquiring the terminal using the pseudo-satellite from the auxiliary data request message Support situation. When the positioning server performs the location calculation, the positioning server sends the auxiliary data of the pseudolite to the terminal, and further includes:
  • the positioning server receives the measurement result sent by the terminal after performing positioning measurement according to the auxiliary data of the pseudolite, and after performing location calculation and positioning for the terminal according to the measurement result, the obtained positioning result is sent to the terminal.
  • the auxiliary data of the pseudolite includes RF map information.
  • the method further includes:
  • the positioning server obtains the positioning result obtained by the positioning of the terminal according to the auxiliary data of the pseudolite and positioning according to the measurement result and the RF map information.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals, thereby improving the accuracy of the positioning measurement.
  • the measurement result is a measurement result obtained by performing positioning measurement on the pseudo satellite signal and/or a measurement result obtained by performing positioning measurement on the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value, and the terminal is based on the GNSS satellite signal power. Threshold values and/or pseudolite signal power thresholds determine the type of satellite in which the positioning measurements are made.
  • the positioning server determines that the terminal needs to use the pseudo satellite positioning according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message.
  • Sending auxiliary data of pseudolites including:
  • the positioning server determines that the terminal needs to transmit the auxiliary data of the pseudolite to the terminal when the terminal can use the pseudolite positioning according to the support situation of the terminal using the pseudolite positioning and the pseudolite deployment of the serving cell of the terminal.
  • auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the positioning server Receiving, by the terminal, the positioning server, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal;
  • the terminal performs positioning measurement according to the auxiliary data of the pseudolite.
  • the terminal updates the auxiliary data of the pseudolite before performing the positioning measurement, which avoids the inaccurate positioning caused by the inaccurate auxiliary data of the pseudolite.
  • One implementation is:
  • the terminal receiving positioning server determines, when determining, according to the serving cell information of the terminal, that the terminal can use pseudolite positioning, the auxiliary data of the pseudolite transmitted by the terminal, Body includes:
  • the terminal receives the pseudo-satellite deployment situation of the SRNC according to the location of the cell and the coverage of the cell, and determines the auxiliary data of the pseudo-satellite transmitted when the terminal supporting the pseudo-satellite positioning can use the pseudo-satellite positioning.
  • the terminal receives the pseudo-satellite deployment situation of the SRNC according to the location of the cell and the coverage of the cell, and determines the auxiliary data of the pseudo-satellite transmitted when the terminal supporting the pseudo-satellite positioning can use the pseudo-satellite positioning. Specifically, including:
  • the terminal receives the SRNC to determine the auxiliary satellite data of the pseudolite transmitted by the broadcast when the terminal supporting the pseudolite positioning can use the pseudolite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the terminal receiving location server further includes: before determining, according to the serving cell information of the terminal, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudo satellite positioning,
  • the terminal sends an auxiliary data request message to the positioning server, or the terminal triggers the SRNC of the cell where the terminal is located to send an auxiliary data request message to the positioning server;
  • the terminal receiving the positioning data of the pseudo-satellite transmitted by the positioning server when determining the terminal can use the pseudo-satellite positioning according to the serving cell information of the terminal, specifically includes:
  • the terminal receiving location server determines, according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message, the auxiliary data sent to the terminal when the terminal can use the pseudo satellite positioning, and the auxiliary data carries the satellite Auxiliary data.
  • the positioning server can obtain the support of the terminal for using pseudo-satellite positioning in different ways:
  • the method further includes:
  • the terminal sends a positioning capability message to the positioning server, and the positioning server determines, according to the positioning capability, the terminal's support for positioning using the pseudolite;
  • the auxiliary data request message carries the terminal's support for positioning using the pseudolite.
  • the terminal When the location calculation is performed by the positioning server, the terminal performs positioning measurement according to the auxiliary data of the pseudolite, and further includes:
  • the terminal sends the measurement result obtained by the positioning measurement to the positioning server;
  • the terminal receives the positioning result that is sent by the positioning server after performing location calculation on the terminal according to the measurement result.
  • the auxiliary data of the pseudolite includes RF map information.
  • the method further includes:
  • the terminal performs positioning according to the measurement result obtained by performing the positioning measurement and the RF map information to obtain a positioning result. Further, after the terminal obtains the positioning result according to the measurement result obtained by performing the positioning measurement and the RF map information, the terminal further includes:
  • the terminal sends the positioning result to the positioning server.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals, thereby improving the accuracy of the positioning measurement.
  • the terminal performs positioning measurement according to the auxiliary data of the pseudolite, and specifically includes:
  • the terminal obtains the measurement result by locating the pseudolite signal and/or by locating the GNSS satellite signal based on the auxiliary data of the pseudolite.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value;
  • the terminal Before the terminal performs the positioning measurement to obtain the measurement result, the terminal further includes:
  • the terminal determines the type of satellite to perform the positioning measurement based on the GNSS satellite signal power threshold and/or the pseudolite signal power threshold.
  • the auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the invention further provides a positioning server, including:
  • a determining unit configured to determine, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, and determine that the auxiliary data of the pseudolite needs to be sent to the terminal;
  • the sending unit is configured to send the auxiliary data of the pseudolite to the terminal, and the terminal performs the positioning measurement according to the auxiliary data of the pseudolite.
  • the positioning server determines that the terminal can use the pseudo satellite positioning, the auxiliary data of the pseudo satellite of the terminal is updated, so that the positioning inaccuracy due to the inaccuracy of the auxiliary data of the pseudo satellite is avoided.
  • the determining unit determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, which specifically includes:
  • the terminal supporting the pseudolite positioning can use pseudolite positioning.
  • the sending unit is specifically configured to:
  • the auxiliary data of the pseudolite is transmitted to the terminal in the cell by broadcasting.
  • the determining unit is specifically configured to:
  • the sending unit After receiving the auxiliary data request message, determining, according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message, that the terminal can use the pseudo satellite positioning, determining that the auxiliary data of the pseudo satellite needs to be sent to the terminal ;
  • the sending unit is specifically configured to:
  • the auxiliary data of the pseudolite is carried in the auxiliary data and sent to the terminal.
  • the determining unit receives the auxiliary data request message, specifically:
  • the determining unit receives the assistance data request message, specifically: receiving the assistance data request message sent by the SRNC of the cell where the terminal is located.
  • the positioning server can obtain the support of the terminal for using pseudo-satellite positioning in different ways:
  • the determining unit is further configured to: receive a location capability message sent by the terminal, and determine the terminal according to the location capability of the message. Support for the use of pseudolite positioning;
  • the determining unit is further configured to:
  • the terminal supports the use of pseudolite positioning by the auxiliary data request message.
  • the positioning server When performing location calculation by the positioning server, the positioning server further includes:
  • the positioning unit is configured to receive the measurement result sent by the terminal after performing positioning measurement according to the auxiliary data of the pseudolite, and send the obtained positioning result to the terminal after the location measurement is performed for the terminal positioning.
  • the auxiliary data of the pseudolite includes RF map information.
  • the positioning server further includes:
  • the receiving unit is configured to receive, after the positioning measurement by the terminal according to the auxiliary data of the pseudo satellite, the positioning result obtained by positioning according to the measurement result and the RF map information.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals, thereby improving the accuracy of the positioning measurement.
  • the measurement result is a measurement result obtained by performing positioning measurement on the pseudo satellite signal and/or a measurement result obtained by performing positioning measurement on the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value, and the terminal is based on the GNSS satellite signal power. Threshold values and/or pseudolite signal power thresholds determine the type of satellite in which the positioning measurements are made.
  • the determining unit is specifically configured to:
  • auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the invention further provides a terminal, including:
  • a data receiving unit configured to receive, by the positioning server, auxiliary data of the pseudolite transmitted when the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal;
  • the positioning measuring unit is configured to perform positioning measurement according to the auxiliary data of the pseudo satellite.
  • the terminal updates the auxiliary data of the pseudolite before performing the positioning measurement, which avoids the inaccurate positioning caused by the inaccurate auxiliary data of the pseudolite.
  • One implementation is:
  • the data receiving unit is specifically configured to: receive, by the SRNC, a pseudolite positioning situation according to a cell location and a cell coverage, and determine that the terminal supporting the pseudolite positioning can Auxiliary data for pseudolites sent when pseudolite positioning is used.
  • the data receiving unit is specifically configured to:
  • the receiving SRNC determines the auxiliary data of the pseudolite transmitted by the broadcast mode when the terminal supporting the pseudolite positioning can use the pseudolite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the data receiving unit is specifically configured to:
  • the auxiliary data sent to the terminal when the terminal can use the pseudo satellite positioning according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message, where the auxiliary data carries the satellite supplementary data.
  • auxiliary data Since the auxiliary data carries the satellite's auxiliary data, the signaling transmission is reduced.
  • the positioning server can obtain the support of the terminal for using pseudo-satellite positioning in different ways:
  • the data receiving unit is further configured to:
  • the assistance data request message carries the terminal support for the use of pseudolite positioning.
  • the positioning measurement unit is further configured to: After performing the positioning measurement according to the auxiliary data of the pseudolite, the measurement result obtained by the positioning measurement is sent to the positioning server;
  • the positioning server And receiving, by the positioning server, a positioning result that is sent after the location calculation is performed for the terminal positioning according to the measurement result.
  • the auxiliary data of the pseudolite includes RF map information.
  • the positioning measurement unit is further configured to:
  • the positioning result is obtained according to the measurement result obtained by performing the positioning measurement and the RF map information.
  • the positioning measurement unit is further configured to:
  • the positioning result is obtained according to the measurement result obtained by the positioning measurement and the RF map information, the positioning result is sent to the positioning server.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals, thereby improving the accuracy of the positioning measurement.
  • the positioning measurement unit performs positioning measurement according to the auxiliary data of the pseudo satellite, and specifically includes:
  • the measurement results are obtained by locating the pseudolite signal and/or by locating the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value;
  • the positioning measurement unit is further configured to:
  • the satellite type for performing the positioning measurement is determined according to the GNSS satellite signal power threshold and/or the pseudolite signal power threshold.
  • the auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the invention further provides a positioning server, including:
  • a processor configured to determine, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, determine that the auxiliary data of the pseudolite needs to be sent to the terminal; and send the auxiliary data of the pseudolite to the terminal, according to the pseudolite Auxiliary data for positioning measurements.
  • the embodiment of the invention further provides a terminal, including:
  • the processor is configured to receive, by the positioning server, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudolite positioning according to the serving cell information of the terminal; and the terminal performs the positioning measurement according to the auxiliary data of the pseudolite.
  • the embodiment of the present invention provides a terminal positioning method, a terminal, and a positioning server.
  • the positioning server determines that the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal, the positioning server sends the auxiliary data of the pseudo satellite to the terminal, because the terminal can be updated in time. Pseudo satellite assisted data, thereby avoiding inaccurate terminal positioning due to inaccurate auxiliary data of the pseudolite, thereby improving the accuracy of terminal positioning.
  • 1 to 5 are flowcharts of a terminal positioning method in the prior art
  • FIG. 6 is a flowchart of a terminal positioning method according to an embodiment of the present disclosure.
  • FIG. 7 is a flowchart of a method for locating a terminal according to Embodiment 2 according to an embodiment of the present disclosure
  • FIG. 8 is a flowchart of a method for locating a terminal according to Embodiment 3 according to an embodiment of the present disclosure
  • FIG. 9 is a flowchart of a method for locating a terminal according to Embodiment 4 according to an embodiment of the present disclosure.
  • FIG. 10 is a second flowchart of a terminal positioning method according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a positioning server according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • the embodiment of the present invention provides a terminal positioning method, a terminal, and a positioning server.
  • the positioning server determines that the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal, the positioning server sends the auxiliary data of the pseudo satellite to the terminal, because the terminal can be updated in time. Pseudo satellite assisted data, thereby avoiding inaccurate terminal positioning due to inaccurate auxiliary data of the pseudolite, thereby improving the accuracy of terminal positioning.
  • the terminal positioning method provided by the embodiment of the present invention includes:
  • Step S601 The positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning, and determines that the auxiliary data of the pseudo satellite needs to be sent to the terminal;
  • Step S602 The positioning server sends the auxiliary data of the pseudolite to the terminal, and the terminal performs positioning measurement according to the auxiliary data of the pseudolite.
  • the positioning server first determines, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning, and then sends the auxiliary data of the pseudolite to the terminal, thereby avoiding the terminal passing the pseudo satellite when the pseudo satellite positioning is not suitable. Positioning is performed to improve the accuracy of terminal positioning.
  • the location server may be an E-SMLC in the LTE system, a SAS or a SRNC in the UMTS system, or a corresponding network element in other systems.
  • the positioning server is specifically an SRNC
  • an implementation manner is that the SRNC directly determines whether the terminal in the cell can use pseudolite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell, and if the terminal that supports the pseudolite positioning can be used, For pseudo-satellite positioning, the auxiliary data of the pseudo-satellite is directly transmitted to the terminal.
  • the positioning server is specifically an SRNC, and the positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, which specifically includes:
  • the SRNC determines that the terminal supporting pseudolite positioning can use pseudolite positioning based on the location of the cell and the pseudolite deployment within the coverage of the cell.
  • the positioning server sends the auxiliary data of the pseudolite to The terminal specifically includes:
  • the SRNC transmits the auxiliary data of the pseudolite to the terminal in the cell by broadcasting.
  • the positioning server may further determine the terminal that sends the auxiliary data request message, and if the terminal can use the pseudo satellite positioning, send the auxiliary data of the pseudo satellite to the terminal.
  • the positioning server determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, and determines that the auxiliary data of the pseudo-satellite needs to be sent to the terminal, which specifically includes:
  • the positioning server After receiving the auxiliary data request message, the positioning server determines, according to the support situation of the terminal using the pseudo-satellite positioning and the serving cell information of the terminal in the auxiliary data request message, that the terminal can use the pseudo-satellite positioning, and determines that the auxiliary data of the pseudo-satellite needs to be sent to the terminal. ;
  • the positioning server sends the auxiliary data of the pseudolite to the terminal, which specifically includes:
  • the positioning server carries the auxiliary data of the pseudolite in the auxiliary data and sends it to the terminal.
  • the auxiliary data request message may be directly sent by the terminal to the positioning server, or the terminal may send the auxiliary data request message to the positioning server through other network elements, or may be sent by other network elements to send the auxiliary data request message to the positioning.
  • Server
  • the location server When the location server is the E-SMLC or the SRNC of the cell where the terminal is located, the location server receives the assistance data request message, which is specifically:
  • the positioning server receives the auxiliary data request message sent by the terminal;
  • the location server When the location server is the SAS, the location server receives the assistance data request message, which is specifically:
  • the positioning server receives the auxiliary data request message sent by the SRNC of the cell where the terminal is located.
  • the positioning server can obtain the support situation of the terminal using the pseudo-satellite positioning in different manners, for example, the terminal can support the use of the pseudo-satellite positioning by transmitting the positioning capability on the 4 ⁇ message, or
  • the support situation of the terminal using the pseudo-satellite positioning is carried in the auxiliary data request message and sent to the positioning server, and the positioning server obtains the support situation of the terminal using the pseudo-satellite positioning from the auxiliary data request message.
  • the positioning server when the positioning server is an E-SMLC, before the positioning server receives the auxiliary data request message, the positioning server further includes:
  • the positioning server receives the 4 ⁇ message of the positioning capability sent by the terminal, and determines the terminal's support for using the pseudo-satellite positioning according to the 4 ⁇ message of the positioning capability;
  • the location server When the location server is the SAS or the SRNC of the cell where the terminal is located, after the location server receives the assistance data request message, the location server further includes: the location server obtains the terminal support for using the pseudolite positioning from the assistance data request message.
  • the positioning result may be obtained by itself, or the measurement result may be sent to the positioning server, and the positioning server performs position calculation to obtain the positioning result.
  • the positioning server supplements the pseudolite After the data is sent to the terminal, it also includes:
  • the positioning server receives the measurement result sent by the terminal after performing the positioning measurement according to the auxiliary data of the pseudolite, and after performing the position calculation for the terminal according to the measurement result, sends the obtained positioning result to the terminal.
  • the GPS map information needs to be included in the auxiliary data of the pseudolite.
  • step S602 after the positioning server sends the auxiliary data of the pseudolite to the terminal, the method further includes: positioning the positioning terminal according to the measurement data and the RF map information after the positioning terminal performs the positioning measurement according to the auxiliary data of the pseudolite. result.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals.
  • the terminal when it performs satellite signal measurement, when it has both the auxiliary data of the GNSS satellite and the auxiliary data of the pseudolite, the GNSS satellite and the pseudolite can be simultaneously measured, and all the measurement results are used.
  • the positioning server When the location of the terminal is calculated by the positioning server, the terminal will upload the measurement results of the GNSS satellite and the pseudolite to the positioning server, and the positioning server calculates the location result and sends it to the relevant entity.
  • the terminal can calculate the result of the location itself, the measurement result is not reported, but the calculated positioning result is reported to the positioning server.
  • the terminal finds that the GNSS satellite signal power level is lower than a certain threshold value, and then starts the positioning measurement of the pseudolite signal, otherwise the positioning of the pseudolite signal is not required to be measured.
  • the purpose of saving electricity After the positioning measurement of the pseudo-satellite signal is started, when the pseudo-satellite signal is not searched, or the pseudo-satellite signal power level is low, the positioning measurement of the pseudo-satellite signal can be turned off, and only the positioning measurement of the GNSS satellite signal can be performed. .
  • the relevant threshold value can be issued by the positioning server as part of the auxiliary data. If the positioning server does not deliver, the terminal can solve the problem, that is, the terminal sets the threshold according to its own design.
  • the measurement result is a measurement result obtained by performing positioning measurement on the pseudo satellite signal and/or a measurement result obtained by performing positioning measurement on the GNSS satellite signal.
  • the auxiliary data of the pseudolite may include: a GNSS satellite signal power threshold and/or a pseudolite signal power threshold, determined by the terminal according to the GNSS satellite signal power threshold and/or the pseudolite signal power threshold The type of satellite that performs the positioning measurement.
  • the positioning server can store the relationship between each cell identifier and the situation of the pseudolite deployment, so as to determine whether the auxiliary data of the pseudolite needs to be provided by the cell identifier.
  • the positioning server acquires the auxiliary data of the pseudolite according to the identity of the cell where the user is located.
  • the positioning server determines that the terminal needs to send the pseudolite to the terminal according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message.
  • Auxiliary data including: The positioning server determines the pseudolite deployment of the serving cell of the terminal according to the serving cell information of the terminal and the correspondence between the cell information and the pseudolite deployment situation;
  • the positioning server determines, according to the terminal's support for the use of pseudolite positioning and the pseudolite deployment of the serving cell of the terminal, that the terminal can use the pseudolite positioning to determine the need to transmit the auxiliary data of the pseudolite to the terminal.
  • the auxiliary data of the pseudolite includes: the identification of the pseudolite, the physical parameter information of the pseudolite, and the navigation message of the pseudolite. If the location is calculated by the terminal, an RF map including pseudolites is also required.
  • the case where the UE is used as the location initiator is taken as an example.
  • step S103b of the process when the terminal reports the positioning capability, the terminal may indicate the support situation of the terminal using the pseudolite, and may also report which satellites support the frequency. signal reception.
  • step S104a, SI 04b when the terminal requests the positioning server to provide the auxiliary data, if the terminal supports the pseudo-satellite positioning, the identifier of the serving cell in which the terminal is located needs to be reported.
  • the positioning server determines, according to the auxiliary data request information of the terminal and the cell information in which the terminal is located, whether the location of the terminal is an indoor or high-rise building dense area.
  • the auxiliary data also needs to provide auxiliary data for pseudolites.
  • auxiliary data For example: In addition to the navigation message information of the Beidou satellite navigation system, it can also provide the geographical location of the Beidou indoor pseudo-satellite, clock information, issued messages, RF maps, etc., for the terminal to perform pseudo-satellite measurements, and can also be used for location. Calculation.
  • the auxiliary data of the pseudolite may include one or a combination of the following:
  • the positioning server determines to send the pseudolite assistance data
  • the information of the RF map needs to be sent to the terminal; if the location server performs the terminal location calculation, the RF map is not needed.
  • the information is sent to the terminal, but the terminal sends the measurement result of the pseudolite to the positioning server, and the positioning server performs position calculation according to the measurement result.
  • the positioning server is SAS.
  • step S500 the remaining steps are the same as those of FIG. 5.
  • step S500 is performed: the terminal reports its own capability, and the terminal reports its own capability. At the end of the report Support for the use of pseudolite positioning. If the terminal has the capability of using pseudo-satellite positioning, it can support the pseudo-satellite positioning, and further, in step S500, it can also report which satellite frequency points it supports.
  • the SRNC receives the information and saves it.
  • the SRNC When the terminal needs to be located, the SRNC will initiate a positioning initialization request to the SAS, and the pseudolite positioning supported by the terminal and the information of the serving cell where the terminal is located, so that the SAS Determine the content of the ancillary data.
  • the SAS can determine whether the terminal is in an indoor or high-rise area according to the location of the cell where the terminal is located, and then determine whether the area has pseudo-satellite coverage. If there is, in addition to the auxiliary data of the GNSS, the SAS can also provide a pseudo in the auxiliary data. Satellite assisted data. After receiving the auxiliary data, the terminal needs to measure the pseudo-satellite signal and report the measurement result in order to obtain a more accurate positioning result, in addition to measuring the satellite signal of the GNSS.
  • the SRNC is used as a positioning server to perform positioning related functions.
  • step S400 when the terminal communicates with the positioning server, step S400 is performed: the terminal reports its own capability, and the reported The self-capability includes positioning capability, that is, the terminal's support for the use of pseudo-satellite positioning. If it supports the use of pseudo-satellite positioning, it also reports the frequency information of the supported satellite signal reception. According to the service cell information of the terminal and the pseudo-satellite positioning capability, the SRNC determines whether it is indoors, whether it is a high-rise building, whether there is a pseudo-satellite deployment, etc.
  • positioning capability that is, the terminal's support for the use of pseudo-satellite positioning. If it supports the use of pseudo-satellite positioning, it also reports the frequency information of the supported satellite signal reception.
  • the SRNC determines whether it is indoors, whether it is a high-rise building, whether there is a pseudo-satellite deployment, etc.
  • the auxiliary data of the pseudolite can be sent to the terminal together with the auxiliary data of the GNSS satellite. Let the terminal make relevant measurements and reports, and further calculate the position results.
  • the SRNC is used as the positioning server, and the SRNC can decide whether to broadcast the pseudo-satellite information by broadcasting according to whether the cell has the presence of the pseudo-satellite.
  • the second embodiment and the third embodiment provide auxiliary data to the terminal through a dedicated signaling process.
  • the network side can also broadcast satellite auxiliary data and pseudo-satellite auxiliary data by means of system information broadcasting according to the location of the cell and whether there is pseudo-satellite deployment within the coverage of the cell, as shown in FIG.
  • the SAS or the SRNC it is not necessary for the SAS or the SRNC to judge whether or not the pseudo satellite assistance data is provided according to the capabilities of the terminal.
  • the pseudo-satellite assistance data in the broadcast can be used for positioning.
  • the SAS is used as another positioning server to implement positioning functions such as subsequent position calculation, or SAS may not exist, and the subsequent location calculation and other positioning functions are implemented by the SRNC.
  • the RNC obtains the GNSS auxiliary data and the pseudo-satellite data, which are distributed by the system broadcast.
  • the terminals under the cell can receive and use the information to locate the GNSS or pseudolite.
  • the embodiment of the present invention further provides a terminal positioning method, as shown in FIG. 10, including:
  • Step S1001 The terminal receives the auxiliary data of the pseudolite transmitted by the positioning server when determining, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning;
  • Step S1002 The terminal performs positioning measurement according to the auxiliary data of the pseudolite.
  • the location server is specifically an SRNC.
  • the terminal receiving location server determines, when the terminal is capable of using the pseudolite positioning according to the serving cell information of the terminal, the auxiliary data of the pseudolite transmitted by the terminal, specifically:
  • the terminal receives the SRNC to determine the auxiliary satellite data of the pseudolite transmitted when the terminal supporting the pseudolite positioning can use the pseudolite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the terminal receives the pseudo-satellite deployment situation of the SRNC according to the cell location and the coverage of the cell, and determines the auxiliary data of the pseudo-satellite transmitted when the terminal supporting the pseudo-satellite positioning can use the pseudo-satellite positioning, specifically: the terminal receives the SRNC according to the The location of the cell and the deployment of the pseudolite in the coverage of the cell determine the auxiliary data of the pseudolite transmitted by the terminal when the terminal supporting the pseudolite positioning can use the pseudolite positioning.
  • the positioning server after receiving the auxiliary data request message, the positioning server further determines the terminal that sends the auxiliary data request message, and if the terminal can use the pseudo satellite positioning, sends the pseudolite to the terminal. supplementary data.
  • the terminal receiving location server further includes: before determining, according to the serving cell information of the terminal, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudo satellite positioning,
  • the terminal sends an auxiliary data request message to the positioning server, or the terminal triggers the SRNC of the cell where the terminal is located to send an auxiliary data request message to the positioning server;
  • step S1001 the terminal receiving the positioning data of the pseudolite transmitted by the positioning server when determining the terminal can use the pseudolite positioning according to the serving cell information of the terminal, specifically includes:
  • the terminal receiving and positioning server determines the auxiliary data sent to the terminal when the terminal can use the pseudo satellite positioning according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message, and the auxiliary data carries the satellite auxiliary data.
  • the positioning server can determine the support situation of the terminal for positioning using the pseudo satellite, and can adopt the following methods:
  • the terminal further includes: the terminal sends a location capability message to the location server, and the location server determines, according to the location capability, the terminal uses the pseudo Satellite support for positioning;
  • the auxiliary data request message carries the support situation of the terminal for positioning using the pseudolite.
  • the terminal performs positioning according to the auxiliary data of the pseudolite in step S1002. After the measurement, it also includes:
  • the terminal sends the measurement result obtained by the positioning measurement to the positioning server;
  • the terminal receives the positioning result sent by the positioning server after performing location calculation on the terminal according to the measurement result.
  • the pseudo-satellite auxiliary data includes RF map information.
  • step S1002 after the terminal performs positioning measurement according to the auxiliary data of the pseudolite, the method further includes:
  • the terminal locates the measurement result based on the measurement result obtained by the positioning measurement and the RF map information to obtain a positioning result.
  • the terminal may also send the positioning result to the positioning server.
  • the terminal After the terminal obtains the positioning result according to the measurement result and the RF map information obtained by the positioning measurement, the terminal further includes:
  • the terminal sends the positioning result to the positioning server.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or the positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals. At this time, the terminal performs positioning measurement according to the auxiliary data of the pseudo satellite.
  • the terminal obtains the measurement result by performing positioning measurement on the pseudolite signal and/or the GNSS satellite signal according to the auxiliary data of the pseudolite.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value;
  • the terminal Before the terminal performs the positioning measurement to obtain the measurement result, it also includes:
  • the terminal determines the type of satellite to perform the positioning measurement based on the GNSS satellite signal power threshold and/or the pseudolite signal power threshold.
  • the auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the present invention further provides a positioning server, as shown in FIG. 11, including:
  • a determining unit 1101 configured to determine, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, and determine that the auxiliary data of the pseudolite needs to be sent to the terminal;
  • the sending unit 1102 is configured to send the auxiliary data of the pseudolite to the terminal, and the terminal performs the positioning measurement according to the auxiliary data of the pseudolite.
  • the location server is specifically an SRNC
  • the determining unit 1101 determines, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning, which specifically includes:
  • the terminal supporting the pseudolite positioning can use pseudolite positioning.
  • the sending unit 1102 is specifically configured to:
  • the auxiliary data of the pseudolite is transmitted to the terminal in the cell by broadcasting.
  • the determining unit 1101 is specifically configured to: After receiving the auxiliary data request message, determining, according to the support situation of the terminal using the pseudo-satellite positioning and the serving cell information of the terminal in the auxiliary data request message, that the terminal can use the pseudo-satellite positioning, determining that the auxiliary data of the pseudo-satellite needs to be sent to the terminal;
  • the sending unit 1102 is specifically configured to:
  • the auxiliary data of the pseudolite is carried in the auxiliary data and sent to the terminal.
  • the determining unit 1101 receives the auxiliary data request message, which is specifically:
  • the determining unit 1101 receives the assistance data request message, specifically: receiving the assistance data request message sent by the SRNC of the cell where the terminal is located.
  • the determining unit 1101 is further configured to: receive the location capability sent by the terminal, and determine, according to the location capability, the terminal to use the pseudolite positioning. Support situation;
  • the determining unit 1101 receives the auxiliary data request message, it is also used to:
  • the terminal's support for using pseudolite positioning is obtained from the auxiliary data request message.
  • the location server further includes:
  • the positioning unit is configured to receive the measurement result sent by the terminal after performing positioning measurement according to the auxiliary data of the pseudolite, and send the obtained positioning result to the terminal after the location measurement is performed by the terminal.
  • the pseudo-satellite auxiliary data includes RF map information.
  • the positioning server also includes:
  • the receiving unit is configured to receive, after the positioning measurement by the terminal according to the auxiliary data of the pseudo satellite, the positioning result obtained by positioning according to the measurement result and the RF map information.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals.
  • the measurement results are the measurement results obtained by positioning the pseudolite signal and/or the measurement results obtained by locating the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold value and/or a pseudolite signal power threshold value, which is determined by the terminal according to the GNSS satellite signal power threshold value and/or The pseudolite signal power threshold determines the type of satellite to perform the positioning measurement.
  • the determining unit 1101 is specifically configured to:
  • the auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the present invention further provides a terminal, as shown in FIG. 12, including:
  • the data receiving unit 1201 is configured to receive, by the positioning server, auxiliary data of the pseudolite transmitted when the terminal can use the pseudolite positioning according to the serving cell information of the terminal;
  • the positioning measuring unit 1202 is configured to perform positioning measurement according to the auxiliary data of the pseudo satellite.
  • the location server is specifically an SRNC
  • the data receiving unit 1201 is specifically configured to: receive, by the SRNC, a pseudolite deployment according to a cell location and a cell coverage, and determine that the terminal supporting the pseudolite positioning can use the pseudolite positioning. Auxiliary data for the transmitted pseudolite.
  • the data receiving unit 1201 is specifically configured to:
  • the receiving SRNC determines the auxiliary data of the pseudolite transmitted by the broadcast mode when the terminal supporting the pseudolite positioning can use the pseudolite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the data receiving unit 1201 is specifically configured to:
  • the receiving location server determines the auxiliary data sent to the terminal and the auxiliary data carrying the satellite in the auxiliary data according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message.
  • the data receiving unit 1201 is also used to: before sending the assistance data request message to the location server:
  • the positioning server determines the terminal's support for using the pseudo-satellite positioning according to the positioning capability.
  • the assistance data request message carries the terminal's support for the use of pseudolite positioning.
  • the positioning measurement unit 1202 is further configured to:
  • the measurement result obtained by the positioning measurement is sent to the positioning server;
  • the positioning result sent by the positioning and positioning server after performing position calculation on the terminal according to the measurement result is the positioning result sent by the positioning and positioning server after performing position calculation on the terminal according to the measurement result.
  • the pseudo-satellite auxiliary data includes RF map information.
  • Positioning measurement unit 1202 is also used to:
  • the measurement result and the RF ground are obtained according to the positioning measurement.
  • the map information is positioned to obtain the positioning result.
  • Positioning measurement unit 1202 is also used to:
  • the positioning result is obtained by positioning the measurement result obtained by the positioning measurement and the RF map information
  • the positioning result is sent to the positioning server.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals.
  • the positioning measurement unit 1202 performs positioning measurement according to the auxiliary data of the pseudolite, and specifically includes:
  • the measurement results are obtained by performing a positioning measurement on the pseudolite signal and/or the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold and/or a pseudolite signal power threshold;
  • Positioning measurement unit 1202 is also used to:
  • the satellite type for performing the positioning measurement is determined according to the GNSS satellite signal power threshold and/or the pseudolite signal power threshold.
  • the auxiliary data of the pseudolite includes:
  • the identification of the pseudolite the physical parameter information of the pseudolite and the navigation message of the pseudolite.
  • the embodiment of the invention further provides a positioning server, including:
  • a processor configured to determine, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, determine that the auxiliary data of the pseudolite needs to be sent to the terminal; and send the auxiliary data of the pseudolite to the terminal, according to the pseudolite Auxiliary data for positioning measurements.
  • the location server is specifically an SRNC
  • the processor determines, according to the serving cell information of the terminal, that the terminal can use the pseudo satellite positioning, which specifically includes:
  • the terminal supporting the pseudolite positioning can use pseudolite positioning.
  • the processor sends the auxiliary data of the pseudolite to the terminal, specifically:
  • the auxiliary data of the pseudolite is transmitted to the terminal in the cell by broadcasting.
  • the processor determines, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, and determines that the auxiliary data of the pseudolite needs to be sent to the terminal, specifically for:
  • the processor sends the auxiliary data of the pseudolite to the terminal, specifically:
  • the auxiliary data of the pseudolite is carried in the auxiliary data and sent to the terminal.
  • the processor receives the auxiliary data request message, which is specifically:
  • the processor receives the auxiliary data request message, which is specifically:
  • the processor is further configured to: before receiving the auxiliary data request message, receive the location capability sent by the terminal, and determine the terminal to use the pseudo according to the location capability. Satellite positioning support;
  • the processor is further configured to: after receiving the auxiliary data request message, obtain the terminal support for using the pseudolite positioning from the auxiliary data request message.
  • the processor is further configured to: receive, by the receiving terminal, the measurement result sent after the positioning measurement according to the auxiliary data of the pseudolite, and perform position calculation on the terminal according to the measurement result, The obtained positioning result is sent to the terminal.
  • the pseudo-satellite auxiliary data includes RF map information.
  • the processor is further configured to: after the positioning terminal performs positioning measurement according to the auxiliary data of the pseudolite, and locates the positioning result according to the measurement result and the RF map information.
  • the processor determines, according to the serving cell information of the terminal, that the terminal can use the pseudo-satellite positioning, and determines that the auxiliary data of the pseudo-satellite needs to be sent to the terminal, specifically:
  • the positioning server may also be configured to implement other functions in the terminal positioning method provided by the embodiments of the present invention.
  • the positioning server receives and transmits each message, it can be implemented by the transceiver module and the wireless interface.
  • the embodiment of the invention further provides a terminal, including:
  • the processor is configured to receive, by the positioning server, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudolite positioning according to the serving cell information of the terminal; and the terminal performs the positioning measurement according to the auxiliary data of the pseudolite.
  • the positioning server is specifically an SRNC
  • the processor receives the auxiliary data of the pseudolite sent by the positioning server when the terminal can use the pseudolite positioning according to the service cell information of the terminal, specifically:
  • the receiving SRNC determines the auxiliary data of the pseudolite transmitted when the terminal supporting the pseudolite positioning can use the pseudolite positioning in accordance with the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the processor receives, by the positioning server, the auxiliary data of the pseudolite transmitted when the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal, specifically:
  • the receiving SRNC determines the auxiliary data of the pseudolite transmitted by the broadcast when the terminal supporting the pseudolite positioning can use the pseudo satellite positioning according to the location of the cell and the pseudolite deployment in the coverage of the cell.
  • the processor receiving the positioning server, when determining, according to the serving cell information of the terminal, that the terminal can use the pseudolite positioning, the auxiliary data of the pseudolite sent by the processor includes:
  • the receiving location server determines the auxiliary data sent to the terminal and the auxiliary data carrying the satellite in the auxiliary data according to the support situation of the terminal using the pseudolite positioning and the serving cell information of the terminal in the auxiliary data request message.
  • the processor is further configured to: send a positioning capability to the positioning server before sending the auxiliary data request message to the positioning server, and the positioning server is configured according to the positioning capability.
  • the message determines the terminal's support for the use of pseudolite positioning;
  • the assistance data request message carries the terminal's support for the use of pseudolite positioning.
  • the processor is further configured to: after performing positioning measurement according to the auxiliary data of the pseudolite, send the measurement result obtained by the positioning measurement to the positioning server;
  • the positioning result sent by the positioning and positioning server after performing position calculation on the terminal according to the measurement result is the positioning result sent by the positioning and positioning server after performing position calculation on the terminal according to the measurement result.
  • the pseudo-satellite auxiliary data includes RF map information.
  • the processor is further configured to: after performing positioning measurement according to the auxiliary data of the pseudolite, performing positioning according to the measurement result obtained by performing the positioning measurement and the RF map information to obtain the positioning result.
  • the processor is further configured to: perform positioning according to the measurement result obtained by performing the positioning measurement and the RF map information, and obtain the positioning result, and then send the positioning result to the positioning server.
  • the terminal can select whether to perform positioning measurement on the pseudo satellite signal or to perform positioning measurement on the GNSS satellite signal according to the measured signal condition, or perform positioning measurement on both signals.
  • the processor performs positioning measurement according to the auxiliary data of the pseudolite, and specifically includes:
  • the measurement results are obtained by performing a positioning measurement on the pseudolite signal and/or the GNSS satellite signal.
  • the auxiliary data of the pseudolite includes: a GNSS satellite signal power threshold and/or a pseudolite signal power threshold;
  • the processor is further configured to: determine a satellite type to perform the positioning measurement based on the GNSS satellite signal power threshold and/or the pseudolite signal power threshold before performing the positioning measurement based on the auxiliary data of the pseudolite.
  • the terminal may also be configured to implement other functions in the terminal positioning method provided by the embodiments of the present invention.
  • the embodiment of the present invention provides a terminal positioning method, a terminal, and a positioning server.
  • the positioning server determines that the terminal can use the pseudo satellite positioning according to the serving cell information of the terminal, the positioning server sends the auxiliary data of the pseudo satellite to the terminal, because the terminal can be updated in time. Pseudo satellite assisted data, thereby avoiding inaccurate terminal positioning due to inaccurate auxiliary data of the pseudolite, thereby improving the accuracy of terminal positioning.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

本申请公开了一种终端定位方法、终端及定位服务器,涉及通信技术,定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位时,向终端发送伪卫星的辅助数据,由于能够及时更新终端中的伪卫星辅助数据,从而避免由于伪卫星的辅助数据不准确导致的终端定位不准确,进而提高终端定位的准确度。

Description

一种终端定位方法、 终端及定位服务器 本申请要求在 2013年 7月 18日提交中国专利局、 申请号为 201310303594.9、 发明名 称为"一种终端定位方法、 终端及定位服务器"的中国专利申请的优先权, 其全部内容通过 引用结合在本申请中。
技术领域
本发明涉及定位技术, 尤其涉及一种终端定位方法、 终端及定位服务器。
背景技术
随着北斗导航接口文件的公开, 通过北斗导航系统进行定位越来越多地应用各个行 业。 考虑到室内或者楼房密集区中不易接收导航卫星信号导致定位精度很差, 伪北斗卫星 顺势而生。 这种伪北斗卫星部署在室内等卫星信号薄弱的地方发送卫星信号。 北斗用户端 需要提前下载伪卫星的信息以及射频(Radio Frequency, RF )地图 (预先通过测量每个位 置多个伪卫星的信号的强度, 建立地图模型) 来进行定位。
目前对于伪卫星的信息以及其 RF地图 (通过对 RF方面的测量生成的 RF指紋地图) 是北斗用户终端提前通过网络(如有线网) 下载到终端上。 等需要进行室内定位的时候, 再根据已经下载的信息 (伪卫星的信息以及 RF地图信息)进行定位。
在长期演进 ( Long Term Evolution, LTE ) 系统中, 网络辅助的全球导航卫星系统 ( Assisted-Global Navigation Satellite System, A-GNSS ) 的定位流程如下:
定位过程的基本流程是: 网络获取 UE ( User Equipment, 用户设备, 终端) 的定位能 力、 网络为 UE提供辅助数据、 定位结果计算。 以下分三个场景给出 A-GNSS定位的流程。
场景 1 : UE发起的对自身的定位过程, 当 UE仅支持 E-SMLC based A-GNSS (基于 E-SMLC定位的 A-GNSS 定位方法, 即位置计算在 E-SMLC 中进行, E-SMLC, Evoved Serving Mobile Location Center, 演进的服务移动位置中心 )定位方法, 且希望对自身进行 定位时触发此过程, 如图 1所示, 该过程包括如下步骤:
步骤 S101 : UE通过非接入层( Non- Access Stratum, N AS )消息,向移动管理实体( Mobile Management Entity, MME )发起一个定位请求, 请求获取自身的位置信息;
步骤 S102: MME向 E-SMLC发起定位请求;
步骤 S103a、 S103b: E-SMLC查询并获取 UE的定位能力信息;
步骤 S104a、 S104b: UE请求并获得 E-SMLC提供的辅助数据;
步骤 S105a、 S105b:在 E-SMLC的请求下, UE利用辅助信息进行 A-GNSS相关测量, 并将测量结果发送给 E-SMLC;
步骤 S106: E-SMLC根据 UE的测量结果以及其他各方面输入, 计算出 UE的位置信 步骤 S107: E-SMLC将定位结果(位置信息)发给 MME;
步骤 S108: MME将定位结果(位置信息)发给 UE。
场景 2: UE发起的辅助信息索取过程, 当 UE支持基于 UE的 A-GNSS ( UE based A-GNSS )定位方法, 希望获取辅助数据时触发此过程, 如图 2所示, 该过程包括如下步 骤:
步骤 S201 : UE通过 NAS层消息, 向 MME发起一个定位请求。
步骤 S202: MME向 E-SMLC发起定位请求;
步骤 S203a、 S203b: E-SMLC查询并获取 UE的定位能力信息。
步骤 S204a、 S204b: UE请求并获得 E-SMLC提供的辅助数据。
接下来 UE将利用获得的辅助信息进行 GNSS测量, 由于使用 UE based A-GNSS (也 称为 UE based )定位方式, 因此测量结果不需要上报给 E-SMLC, 而是 UE自己进行本地 计算, 得到自己的位置信息。
场景 3: 网络侧发起的对 UE的定位过程, 当定位过程由网络发起时, 使用此过程, 如图 3所示, 包括以下几个步骤:
步骤 S301 : 定位需求方 ( LCS client, Location Services client, 定位业务客户端) 向
MME发起一个定位请求, 希望获取 UE的位置信息;
步骤 S302: MME向 E-SMLC发起定位请求;
步骤 S303a、 S303b: E-SMLC查询并获取 UE的定位能力信息;
步骤 S304a、 S304b: UE请求并获得 E-SMLC提供的辅助数据;
如果使用 E-SMLC based A-GNSS (也称为 E-SMLC based )定位方法, 则执行以下步 骤:
步骤 S305a、 S305b: 在 E-SMLC的请求下, UE利用辅助信息进行 A-GNSS测量, 并 将测量结果发送给 E-SMLC;
步骤 S306: E-SMLC根据 UE的测量结果以及其他各方面输入, 计算出 UE的位置信 息;
如果使用 UE based定位方法, 则执行以下步骤:
步骤 S307: E-SMLC请求 UE提供位置信息;
步骤 S308:利用辅助信息进行 A-GNSS测量,并进行本地计算,得到自己的位置信息; 步骤 S309: UE将自己的位置信息发给 E-SMLC。
至此, E-SMLC已经获得了 UE的位置信息, 继续执行步骤 S310-S311 :
步骤 S310: E-SMLC将定位结果(位置信息)发给 MME。
步骤 S311 : MME将定位结果(位置信息)发给定位需求方 ( LCS client )。
通用移动通信系统 ( Universal Mobile Telecommunications System, UMTS ) 系统的定 位流程, 由于定位架构与 LTE不同, 所以流程也不尽相同:
分两种情况, 一种是定位中心在无线网络控制器(Radio Network Controller, RNC ) 外, 即独立的服务移动位置中心( Stand Alone SMLC, SAS )与 RNC通过 IuPC接口相连, 进行通信。 另一种是 RNC内部实现定位服务器的相关功能。
基于 RNC的 A-GANSS ( Assisted-Galileo and Additional Navigation Satellite Systems, 辅助的伽利略以及其他卫星导航系统)定位过程如图 4所示, 包括:
步骤 S401: 核心网发起定位请求给 RNC;
步骤 S402: RNC触发 UE进行 GANSS相关的测量,其中提供相关 GANSS辅助数据; 步骤 S403: UE上 4艮测量结果或者位置信息;
步骤 S404: RNC将位置评估结果上报给核心网 ( Core network, CN )。
上述步骤 2-4可以重复, 进行多次位置评估和上 ·ί艮。
基于 SAS的 A-GANSS定位过程如图 5所示, 包括:
步骤 S501: 核心网发启动定位的消息给 RNC;
步骤 S502: RNC向 SAS发起定位初始化请求;
步骤 S503: SAS反馈定位激活请求, 其中可以携带 GANSS辅助数据;
步骤 S504: RNC触发 UE进行 GANSS相关的测量,其中提供相关 GANSS辅助数据; 步骤 S505: UE上 ·ί艮测量结果或者位置信息给 RNC;
步骤 S506: RNC将 UE上报的信息发给 SAS;
步骤 S507: SAS将最终的位置评估结果反馈给 RNC;
步骤 S508: RNC将最终的位置评估结果发给核心网。
其中 RNC可以将 UE周期性的测量结果或者位置结果上 4艮给 SAS, SAS进行多次位 置评估发给 RNC, RNC在上报的时刻到达时将最后的位置信息发给核心网。
可见, 目前进行定位时, 可以提供各个卫星导航系统的卫星信息给终端。 但由于卫星 信号在室外, 空旷的地区接收盾量比较好, 而在室内, 或者高楼密集区, 盾量较差, 就会 导致釆用卫星导航系统进行定位的精度很差。
虽然现在已有一些手段进行室内或者高楼密集区的卫星定位增强, 其相关信息需要定 位终端提前从网络下载, 并且不能实时更新。 例如, 伪卫星的新部署或者拆除, 位置移动, 而客户端之前下载的地图信息没有及时更新, 就会出现定位不准确等问题。
发明内容
本发明实施例提供一种终端定位方法、终端及定位服务器,以提高终端定位的准确度。 本发明实施例提供的一种终端定位方法, 包括:
定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终 端发送伪卫星的辅助数据; 定位服务器将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数据进行定位 测量。
由于定位服务器确定终端能够使用伪卫星定位时, 更新了终端的伪卫星的辅助数据 , 所以避免了由于伪卫星的辅助数据不准确导致的定位不准确。
所述定位服务器具体为 SRNC时, 为提高信令交互效率, 一种实施方式为: 所述定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位, 具体包括: 服务无线网络控制器( Serving-RNC, SRNC )根据小区位置以及小区覆盖范围内的伪 卫星部署情况, 确定支持伪卫星定位的终端能够使用伪卫星定位。
进一步, 为减小信令开销, 所述定位服务器将伪卫星的辅助数据发送给终端, 具体包 括:
SRNC通过广播方式将伪卫星的辅助数据发送给小区中的终端。
进一步, 另一种实施方式为:
所述定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要 向终端发送伪卫星的辅助数据, 具体包括:
定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和所 述辅助数据请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向 终端发送伪卫星的辅助数据;
为减少信令传输, 所述定位服务器将伪卫星的辅助数据发送给终端, 具体包括: 定位服务器将伪卫星的辅助数据携带在辅助数据中发送给终端。
进一步, 当所述定位服务器是 E-SMLC或终端所在小区的 SRNC时, 所述定位服务器 接收到辅助数据请求消息, 具体为:
所述定位服务器接收到终端发送的辅助数据请求消息;
当所述定位服务器是 SAS时, 所述定位服务器接收到辅助数据请求消息, 具体为: 所述定位服务器接收到终端所在小区的 SRNC发送的辅助数据请求消息。
根据实际情况, 定位服务器可以通过不同的方式获取终端对使用伪卫星定位的支持情 况:
当所述定位服务器是 E-SMLC时, 所述定位服务器接收到辅助数据请求消息前, 还包 括:
所述定位服务器接收终端发送的定位能力上报消息, 并根据所述定位能力上报消息确 定终端对使用的伪卫星定位的支持情况;
当所述定位服务器是 SAS或终端所在小区的 SRNC时,所述定位服务器接收到辅助数 据请求消息后, 还包括: 所述定位服务器从所述辅助数据请求消息中获取终端的对使用伪 卫星定位的支持情况。 由定位服务器进行位置计算时, 所述定位服务器将伪卫星的辅助数据发送给终端后, 还包括:
定位服务器接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并在根 据测量结果为所述终端进行位置计算定位后, 将所得的定位结果发送给终端。
由终端进行位置计算时, 所述伪卫星的辅助数据中包括 RF地图信息。
此时, 所述定位服务器将伪卫星的辅助数据发送给终端后, 还包括:
定位服务器接收终端根据伪卫星的辅助数据进行定位测量后, 根据测量结果和 RF地 图信息进行定位得到的定位结果。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量, 进而提高定位测量的准确度。
所以, 所述测量结果为通过对伪卫星信号进行定位测量得到的测量结果和 /或通过对 GNSS卫星信号进行定位测量得到的测量结果。
进一步, 为便于终端确定进行定位测量的卫星种类, 所述伪卫星的辅助数据中包括: GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值, 由所述终端根据 GNSS卫星信号 功率门限值和 /或伪卫星信号功率门限值确定进行定位测量的卫星种类。
较佳的, 定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持 情况和所述辅助数据请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确 定需要向终端发送伪卫星的辅助数据, 具体包括:
所述定位服务器根据所述终端的服务小区信息以及小区信息与伪卫星部署情况的对 应关系, 确定所述终端的服务小区的伪卫星部署情况;
所述定位服务器根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星 部署情况确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
进一步, 所述伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例提供的一种终端定位方法, 包括:
终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位时, 发 送的伪卫星的辅助数据;
终端根据伪卫星的辅助数据进行定位测量。
终端在进行定位测量前, 更新了伪卫星的辅助数据, 避免了由于伪卫星的辅助数据不 准确导致的定位不准确。
一种实施方式为:
所述定位服务器具体为 SRNC时, 为提高信令交互效率, 所述终端接收定位服务器在 根据终端的服务小区信息确定终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据, 具 体包括:
所述终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支 持伪卫星定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
进一步, 为减小信令开销, 所述终端接收 SRNC在根据小区位置以及小区覆盖范围内 的伪卫星部署情况, 确定支持伪卫星定位的终端能够使用伪卫星定位时, 发送的伪卫星的 辅助数据, 具体包括:
终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪 卫星定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
进一步, 另一种实施方式为:
所述终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位 时, 发送的伪卫星的辅助数据前, 还包括:
终端向定位服务器发送辅助数据请求消息, 或终端触发终端所在小区的 SRNC向定位 服务器发送辅助数据请求消息;
为减少信令传输, 所述终端接收定位服务器在根据终端的服务小区信息确定终端能够 使用伪卫星定位时, 发送的伪卫星的辅助数据, 具体包括:
终端接收定位服务器根据终端对使用伪卫星定位的支持情况和所述辅助数据请求消 息中终端的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 所述 辅助数据中携带卫星的辅助数据。
根据实际情况, 定位服务器可以通过不同的方式获取终端对使用伪卫星定位的支持情 况:
当所述定位服务器是 E-SMLC时, 所述终端向定位服务器发送辅助数据请求消息前, 还包括:
终端向定位服务器发送定位能力上 4艮消息, 由所述定位服务器根据所述定位能力上 4艮 消息确定终端的对使用伪卫星进行定位的支持情况;
当所述定位服务器是 SAS或终端所在小区的 SRNC时,所述辅助数据请求消息携带终 端的对使用伪卫星进行定位的支持情况。
由定位服务器进行位置计算时, 所述终端根据伪卫星的辅助数据进行定位测量后, 还 包括:
终端将进行定位测量得到的测量结果发送给定位服务器;
终端接收所述定位服务器根据测量结果为所述终端进行位置计算后发送的定位结果。 由终端进行位置计算时, 所述伪卫星的辅助数据中包括 RF地图信息。
此时, 所述终端根据伪卫星的辅助数据进行定位测量后, 还包括:
终端根据进行定位测量得到的测量结果和所述 RF地图信息进行定位得到定位结果。 进一步, 所述终端根据进行定位测量得到的测量结果和所述 RF地图信息进行定位得 到定位结果后, 还包括:
终端将所述定位结果发送给定位服务器。
较佳的,终端可以根据测量的信号情况,选择对伪卫星信号进行定位测量还是对 GNSS 卫星信号进行定位测量, 或者对二者信号均进行定位测量, 进而提高定位测量的准确度。
所述终端根据伪卫星的辅助数据进行定位测量, 具体包括:
终端根据伪卫星的辅助数据,通过对伪卫星信号和 /或通过对 GNSS卫星信号进行定位 测量得到测量结果。
进一步, 为便于终端确定进行定位测量的卫星种类, 所述伪卫星的辅助数据中包括: GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值;
所述终端进行定位测量得到测量结果前, 还包括:
终端根据 GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值确定进行定位测量 的卫星种类。
较佳的, 所述伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还提供一种定位服务器, 包括:
确定单元, 用于根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要 向终端发送伪卫星的辅助数据;
发送单元, 用于将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数据进行 定位测量。
由于定位服务器确定终端能够使用伪卫星定位时, 更新了终端的伪卫星的辅助数据 , 所以避免了由于伪卫星的辅助数据不准确导致的定位不准确。
所述定位服务器具体为 SRNC时, 为提高信令交互效率, 所述确定单元根据终端的服 务小区信息确定终端能够使用伪卫星定位, 具体包括:
根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的终端能 够使用伪卫星定位。
进一步, 为减小信令开销, 所述发送单元具体用于:
通过广播方式将伪卫星的辅助数据发送给小区中的终端。
进一步, 另一种实施方式为:
所述确定单元具体用于:
接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和所述辅助数据 请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端发送伪 卫星的辅助数据; 为减少信令传输, 所述发送单元具体用于:
将伪卫星的辅助数据携带在辅助数据中发送给终端。
进一步, 当所述定位服务器是 E-SMLC或终端所在小区的 SRNC时, 所述确定单元接 收到辅助数据请求消息, 具体为:
接收到终端发送的辅助数据请求消息;
当所述定位服务器是 SAS时, 所述确定单元接收到辅助数据请求消息, 具体为: 接收到终端所在小区的 SRNC发送的辅助数据请求消息。
根据实际情况, 定位服务器可以通过不同的方式获取终端对使用伪卫星定位的支持情 况:
当所述定位服务器是 E-SMLC时,所述确定单元接收到辅助数据请求消息前,还用于: 接收终端发送的定位能力上 4艮消息, 并根据所述定位能力上 4艮消息确定终端对使用的 伪卫星定位的支持情况;
当所述定位服务器是 SAS或终端所在小区的 SRNC时,所述确定单元接收到辅助数据 请求消息后, 还用于:
从所述辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
由定位服务器进行位置计算时, 定位服务器还包括:
定位单元, 用于接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并 在才 居测量结果为所述终端定位进行位置计算后, 将所得的定位结果发送给终端。
由终端进行位置计算时, 所述伪卫星的辅助数据中包括 RF地图信息。
此时, 所述定位服务器还包括:
接收单元,用于接收终端根据伪卫星的辅助数据进行定位测量后,根据测量结果和 RF 地图信息进行定位得到的定位结果。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量, 进而提高定位测量的准确度。
所述测量结果为通过对伪卫星信号进行定位测量得到的测量结果和 /或通过对 GNSS 卫星信号进行定位测量得到的测量结果。
进一步, 为便于终端确定进行定位测量的卫星种类, 所述伪卫星的辅助数据中包括: GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值, 由所述终端根据 GNSS卫星信号 功率门限值和 /或伪卫星信号功率门限值确定进行定位测量的卫星种类。
较佳的, 确定单元具体用于:
根据所述终端的服务小区信息以及小区信息与伪卫星部署情况的对应关系, 确定所述 终端的服务小区的伪卫星部署情况;
根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星部署情况确定终 端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
进一步, 所述伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还提供一种终端, 包括:
数据接收单元, 用于接收定位服务器在根据终端的服务小区信息确定终端能够使用伪 卫星定位时, 发送的伪卫星的辅助数据;
定位测量单元, 用于根据伪卫星的辅助数据进行定位测量。
终端在进行定位测量前, 更新了伪卫星的辅助数据, 避免了由于伪卫星的辅助数据不 准确导致的定位不准确。
一种实施方式为:
所述定位服务器具体为 SRNC时,为提高信令交互效率,所述数据接收单元具体用于: 接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
进一步, 为减小信令开销, 所述数据接收单元具体用于:
接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
进一步, 另一种实施方式为:
所述数据接收单元具体用于:
向定位服务器发送辅助数据请求消息, 或触发终端所在小区的 SRNC向定位服务器发 送辅助数据请求消息;
接收定位服务器根据终端对使用伪卫星定位的支持情况和所述辅助数据请求消息中 终端的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 所述辅助 数据中携带卫星的辅助数据。
由于辅助数据中携带卫星的辅助数据, 减少了信令传输。
根据实际情况, 定位服务器可以通过不同的方式获取终端对使用伪卫星定位的支持情 况:
当所述定位服务器是 E-SMLC时, 所述数据接收单元向定位服务器发送辅助数据请求 消息前, 还用于:
向定位服务器发送定位能力上 4艮消息, 由所述定位服务器根据所述定位能力上 4艮消息 确定终端对使用伪卫星定位的支持情况;
当所述定位服务器是 SAS或终端所在小区的 SRNC时,所述辅助数据请求消息携带终 端对使用伪卫星定位的支持情况。
由定位服务器进行位置计算时, 所述定位测量单元还用于: 根据伪卫星的辅助数据进行定位测量后, 将进行定位测量得到的测量结果发送给定位 服务器;
接收所述定位服务器根据测量结果为所述终端定位进行位置计算后发送的定位结果。 由终端进行位置计算时, 所述伪卫星的辅助数据中包括 RF地图信息。
此时, 所述定位测量单元还用于:
根据伪卫星的辅助数据进行定位测量后,根据进行定位测量得到的测量结果和所述 RF 地图信息进行定位得到定位结果。
进一步, 所述定位测量单元还用于:
根据进行定位测量得到的测量结果和所述 RF地图信息进行定位得到定位结果后, 将 所述定位结果发送给定位服务器。
较佳的,终端可以根据测量的信号情况,选择对伪卫星信号进行定位测量还是对 GNSS 卫星信号进行定位测量, 或者对二者信号均进行定位测量, 进而提高定位测量的准确度。
所述定位测量单元根据伪卫星的辅助数据进行定位测量, 具体包括:
根据伪卫星的辅助数据,对通过伪卫星信号和 /或通过对 GNSS卫星信号进行定位测量 得到测量结果。
进一步, 为便于终端确定进行定位测量的卫星种类, 所述伪卫星的辅助数据中包括: GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值;
所述定位测量单元还用于:
根据伪卫星的辅助数据进行定位测量前,根据 GNSS卫星信号功率门限值和 /或伪卫星 信号功率门限值确定进行定位测量的卫星种类。
较佳的, 所述伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还提供一种定位服务器, 包括:
处理器, 被配置为用于根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确 定需要向终端发送伪卫星的辅助数据; 将伪卫星的辅助数据发送给终端, 由终端根据伪卫 星的辅助数据进行定位测量。
本发明实施例还提供一种终端, 包括:
处理器, 被配置为用于接收定位服务器在根据终端的服务小区信息确定终端能够使用 伪卫星定位时, 发送的伪卫星的辅助数据; 终端根据伪卫星的辅助数据进行定位测量。
本发明实施例提供一种终端定位方法、 终端及定位服务器, 定位服务器在根据终端的 服务小区信息确定终端能够使用伪卫星定位时, 向终端发送伪卫星的辅助数据, 由于能够 及时更新终端中的伪卫星辅助数据 , 从而避免由于伪卫星的辅助数据不准确导致的终端定 位不准确, 进而提高终端定位的准确度。 附图说明
图 1-图 5为现有技术中的终端定位方法流程图;
图 6为本发明实施例提供的终端定位方法流程图之一;
图 7为本发明实施例提供的对应实施例二的终端定位方法流程图;
图 8为本发明实施例提供的对应实施例三的终端定位方法流程图;
图 9为本发明实施例提供的对应实施例四的终端定位方法流程图;
图 10为本发明实施例提供的终端定位方法流程图之二;
图 11为本发明实施例提供的定位服务器示意图;
图 12为本发明实施例提供的终端示意图。
具体实施方式
本发明实施例提供一种终端定位方法、 终端及定位服务器, 定位服务器在根据终端的 服务小区信息确定终端能够使用伪卫星定位时, 向终端发送伪卫星的辅助数据, 由于能够 及时更新终端中的伪卫星辅助数据 , 从而避免由于伪卫星的辅助数据不准确导致的终端定 位不准确, 进而提高终端定位的准确度。
如图 6所示, 本发明实施例提供的终端定位方法, 包括:
步骤 S601、 定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确 定需要向终端发送伪卫星的辅助数据;
步骤 S602、 定位服务器将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数 据进行定位测量。
由于在步骤 S601 中, 定位服务器首先据终端的服务小区信息确定终端能够使用伪卫 星定位,再将伪卫星的辅助数据发送给终端,所以避免了终端在不适合使用伪卫星定位时, 通过伪卫星进行定位, 从而提高了终端定位的准确度。
在本发明实施例中,定位服务器可以是 LTE系统中的 E-SMLC,也可以是 UMTS系统 中的 SAS或者 SRNC, 还可以是其它系统中的相应网元。
定位服务器具体为 SRNC时,一种实施方式是 SRNC直接根据小区位置以及小区覆盖 范围内的伪卫星部署情况, 判断小区内的终端是否能够使用伪卫星定位, 若确定支持伪卫 星定位的终端能够使用伪卫星定位, 则直接向终端发送伪卫星的辅助数据。
由于 SRNC不需要接收到终端的相应请求后再进行判断,所以可以提高信令交互效率。 此时, 步骤 S601中, 定位服务器具体为 SRNC, 定位服务器根据终端的服务小区信息 确定终端能够使用伪卫星定位, 具体包括:
SRNC根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的 终端能够使用伪卫星定位。
为进一步提高信令交互效率, 步骤 S602 中, 定位服务器将伪卫星的辅助数据发送给 终端, 具体包括:
SRNC通过广播方式将伪卫星的辅助数据发送给小区中的终端。
当然, 定位服务器也可以在接收到辅助数据请求消息后, 再对发送辅助数据请求消息 的终端进行相应判断,若该终端能够使用伪卫星定位,再向该终端发送伪卫星的辅助数据。
此时, 步骤 S601 中, 定位服务器根据终端的服务小区信息确定终端能够使用伪卫星 定位时, 确定需要向终端发送伪卫星的辅助数据, 具体包括:
定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和辅 助数据请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端 发送伪卫星的辅助数据;
为减少信令传输, 步骤 S602 中, 定位服务器将伪卫星的辅助数据发送给终端, 具体 包括:
定位服务器将伪卫星的辅助数据携带在辅助数据中发送给终端。
具体的, 可以由终端直接将辅助数据请求消息发送给定位服务器, 或者终端通过其它 网元将辅助数据请求消息发送给定位服务器, 也可以由其它网元获取终端情况后发送辅助 数据请求消息给定位服务器:
当定位服务器是 E-SMLC或终端所在小区的 SRNC时,定位服务器接收到辅助数据请 求消息, 具体为:
定位服务器接收到终端发送的辅助数据请求消息;
当定位服务器是 SAS时, 定位服务器接收到辅助数据请求消息, 具体为:
定位服务器接收到终端所在小区的 SRNC发送的辅助数据请求消息。
根据实际情况, 定位服务器可以通过不同的方式获取终端对使用伪卫星定位的支持情 况,例如,可以是终端通过发送定位能力上 4艮消息上 4艮终端对使用伪卫星定位的支持情况, 也可以是将终端对使用伪卫星定位的支持情况携带在辅助数据请求消息中发送给定位服 务器, 由定位服务器从在辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
具体的, 当定位服务器是 E-SMLC时, 定位服务器接收到辅助数据请求消息前, 还包 括:
定位服务器接收终端发送的定位能力上 4艮消息, 并根据定位能力上 4艮消息确定终端对 使用伪卫星定位的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时,定位服务器接收到辅助数据请求消 息后,还包括:定位服务器从辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
终端根据伪卫星的辅助数据进行定位测量后, 可以自行计算获得定位结果, 也可以将 测量结果发送给定位服务器, 由定位服务器进行位置计算获得定位结果。
具体的, 若由定位服务器进行位置计算, 则步骤 S602 中, 定位服务器将伪卫星的辅 助数据发送给终端后, 还包括:
定位服务器接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并在根 据测量结果为终端进行位置计算后, 将所得的定位结果发送给终端。
若由终端进行位置计算, 则伪卫星的辅助数据中需要包括 RF地图信息。
此时, 步骤 S602中, 定位服务器将伪卫星的辅助数据发送给终端后, 还包括: 定位服务器接收终端根据伪卫星的辅助数据进行定位测量后, 根据测量结果和 RF地 图信息进行定位得到的定位结果。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量。
较佳的, 终端在进行卫星信号的测量的时候, 当其既有 GNSS卫星的辅助数据又有伪 卫星的辅助数据时, 可以同时进行 GNSS卫星和伪卫星的测量, 并将所有的测量结果用于 定位。 当由定位服务器计算终端位置时, 终端将对 GNSS卫星和伪卫星的测量结果都上 4艮 给定位服务器, 定位服务器计算位置结果后发给相关实体。 当终端自己可以计算自身位置 结果时, 则不需要上报测量结果, 而是将计算的定位结果上报给定位服务器。
进一步优化地, 终端在对 GNSS卫星信号进行定位测量中, 发现 GNSS卫星信号功率 水平低于某个门限值, 则开启对伪卫星信号的定位测量, 否则不用对伪卫星信号进行定位 测量, 达到省电的目的。 在启动了对伪卫星信号的定位测量后, 当搜索不到伪卫星信号, 或者伪卫星信号功率水平较低时, 可以关闭对伪卫星信号的定位测量, 而只进行对 GNSS 卫星信号的定位测量。 当然在伪卫星信号定位测量盾量很好的情况下, 也可以不进行对 GNSS卫星信号的定位测量。 此种情况下, 相关的门限值可以是定位服务器作为辅助数据 的一部分下发的。 如果定位服务器不下发, 终端可以实现解决, 即终端根据自己的设计来 自行设定门限值。
可见,测量结果为对伪卫星信号进行定位测量得到的测量结果和 /或对 GNSS卫星信号 进行定位测量得到的测量结果。
进一步, 伪卫星的辅助数据中可以包括: GNSS卫星信号功率门限值和 /或伪卫星信号 功率门限值,由终端根据 GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值确定进行 定位测量的卫星种类。
较佳的, 定位服务器可以保存各小区标识与伪卫星部署的情况的关系, 以便通过小区 标识确定是否需要提供伪卫星的辅助数据。 当需要提供伪卫星的辅助数据时, 定位服务器 根据用户所在小区的标识来获取伪卫星的辅助数据。
此时, 定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情 况和辅助数据请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要 向终端发送伪卫星的辅助数据, 具体包括: 定位服务器根据终端的服务小区信息以及小区信息与伪卫星部署情况的对应关系, 确 定终端的服务小区的伪卫星部署情况;
定位服务器根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星部署 情况确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
伪卫星的辅助数据中包括: 伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电 文。 如果由终端进行位置计算, 还需要包括伪卫星的 RF地图。
下面通过具体的实施例对终端定位方法进行详细说明:
实施例一、
在 LTE系统中, 以 UE作为定位发起端的情况为例来说明。
该实施例的流程图如图 1所示, 但在该流程的步骤 S103b中, 终端上报定位能力时, 可以指示终端使用伪卫星进行定位的支持情况, 并且也可以上报自己支持哪些频点的卫星 信号接收。 在步骤 S104a、 SI 04b 中, 终端向定位服务器请求提供辅助数据的时候, 如果 终端支持伪卫星定位, 则需要将自己所在的服务小区的标识上报。 定位服务器根据终端的 辅助数据请求信息, 以及其所在的小区信息, 判断该终端所处的位置是否为室内或者高楼 密集区, 如果该范围部署有伪卫星, 则下发辅助数据的时候, 除了 GNSS的辅助数据还需 提供伪卫星的辅助数据。 例如: 除了北斗卫星导航系统的导航电文信息外, 还可以提供北 斗室内伪卫星的地理位置, 时钟信息, 下发的电文, RF地图等, 用于终端进行伪卫星的测 量, 也可以用于位置计算。
其中伪卫星的辅助数据可以包括如下内容之一或者组合:
-伪卫星的坐标;
-伪卫星的定时, 信号发送时间;
-伪卫星发送的电文内容;
-伪卫星的 RF地图 (可以用测量结果进行位置匹配);
- 其他与伪卫星相关的信息。
其他两种 LTE定位流程的情况与此流程是类似的, 不再赘述。
需要说明的是,在定位服务器决定下发伪卫星辅助数据时, 如果是 UE计算终端位置, 则需要将 RF地图的信息发送给终端; 如果是定位服务器进行终端位置计算, 则不需要将 RF地图的信息发送给终端, 而是让终端将伪卫星的测量结果上 4艮给定位服务器, 由定位服 务器根据测量结果进行位置计算。
实施例二、
在 UMTS系统中, 存在独立的定位服务器, 即定位服务器为 SAS。
如图 7所示, 图 7中除步骤 S500, 其余各步骤与图 5相同, 在该实施例中, 在终端接 入网络期间, 执行步骤 S500: 终端上报自身能力, 并且, 终端在上报自身能力时会上报终 端对使用伪卫星定位的支持情况。 如果终端具备使用伪卫星定位的能力, 则可以上 4艮其支 持伪卫星定位, 进一步, 在步骤 S500中, 也可以同时上报其支持哪些卫星频点。 SRNC收 到这些信息并保存, 当需要对该终端进行定位时, SRNC将向 SAS发起定位初始化请求, 并上 4艮该终端支持的伪卫星定位, 以及该终端所在的服务小区的信息, 以便 SAS确定辅助 数据的内容。 SAS可以根据终端所在的小区的位置, 来确定该终端是否处于室内或高楼密 集区, 进而判断该区域是否有伪卫星覆盖, 如果有, 除了 GNSS的辅助数据以外, 还可以 在辅助数据中提供伪卫星辅助数据。 终端收到辅助数据后, 除了测量 GNSS的卫星信号以 外, 如果可以测量到伪卫星的信号, 则也需要测量伪卫星的信号, 并上报测量结果, 以便 获得更精确的定位结果。
实施例三、
在 UMTS系统中, 由 SRNC作为定位服务器来完成定位相关功能。
如图 8所示, 图 8中除步骤 S400 , 其余各步骤与图 4相同, 在该实施例中, 终端在与 定位服务器通信的时候, 执行步骤 S400: 终端上报自身能力, 并且, 所上报的自身能力中 包括定位能力, 即终端对使用伪卫星定位的支持情况, 如果其支持使用伪卫星定位, 同时 上报支持的卫星信号接收的频点信息。 SRNC根据终端的服务小区信息以及伪卫星定位的 能力, 根据服务小区所处的位置, 判断是否是室内, 是否是高楼密集区, 是否有伪卫星部 署等, 进而判断是否需要提供伪卫星的辅助数据。 当确定要提供伪卫星的辅助数据时, 可 以将伪卫星的辅助数据连同 GNSS卫星的辅助数据一起发给终端。 让终端进行相关的测量 以及上报, 并进一步计算位置结果。
实施例四、
对于 UMTS系统, 由于 GANSS的辅助数据可以通过小区广播下发, 所以 SRNC作为 定位服务器是, SRNC可以根据该小区是否有伪卫星的存在来决定是否通过广播下发伪卫 星的信息。
在 UMTS系统中, 实施例二和实施例三是通过专用信令过程将辅助数据提供给终端。 实际上, 网络侧也可以根据小区所处的位置以及小区覆盖范围内是否有伪卫星的部署情况 通过系统信息广播的方式将卫星辅助数据和伪卫星辅助数据进行广播, 如图 9所示, 这种 情况下, 不需要 SAS或者 SRNC根据终端的能力来判断是否提供伪卫星辅助数据。在小区 覆盖范围内的终端只要支持伪卫星定位, 就可以使用广播中的伪卫星辅助数据进行定位。
在该实施例中,可以存在 SAS , 由 SAS作为另一定位服务器实现后续的位置计算等定 位功能, 也可以不存在 SAS , 由 SRNC实现后续的位置计算等定位功能。
由于 SAS不是必须部署的, 所以在图 9中用虚线表示。 RNC获取到 GNSS辅助数据 以及伪卫星的数据, 通过系统广播下发。 该小区下的终端都可以接收到并利用这些信息进 行 GNSS或者伪卫星的定位。 本发明实施例还相应一种终端定位方法, 如图 10所示, 包括:
步骤 S1001、 终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫 星定位时, 发送的伪卫星的辅助数据;
步骤 S1002、 终端根据伪卫星的辅助数据进行定位测量。
其中, 对应实施例四, 定位服务器具体为 SRNC, 步骤 S1001中, 终端接收定位服务 器在根据终端的服务小区信息确定终端能够使用伪卫星定位时, 发送的伪卫星的辅助数 据, 具体包括:
终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪 卫星定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
进一步, 终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确 定支持伪卫星定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据, 具体包括: 终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪 卫星定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
对应实施例一、 二、 三, 定位服务器在接收到辅助数据请求消息后, 再对发送辅助数 据请求消息的终端进行相应判断, 若该终端能够使用伪卫星定位, 再向该终端发送伪卫星 的辅助数据。
此时, 终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位 时, 发送的伪卫星的辅助数据前, 还包括:
终端向定位服务器发送辅助数据请求消息, 或终端触发终端所在小区的 SRNC向定位 服务器发送辅助数据请求消息;
步骤 S1001中, 终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪 卫星定位时, 发送的伪卫星的辅助数据, 具体包括:
终端接收定位服务器根据终端对使用伪卫星定位的支持情况和辅助数据请求消息中 终端的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 辅助数据 中携带卫星的辅助数据。
进一步, 定位服务器对终端对使用伪卫星进行定位的支持情况的确定, 可以釆用如下 方式:
当定位服务器是 E-SMLC时, 终端向定位服务器发送辅助数据请求消息前, 还包括: 终端向定位服务器发送定位能力上 4艮消息, 由定位服务器根据定位能力上 4艮消息确定 终端对使用伪卫星进行定位的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时,辅助数据请求消息携带终端对使用 伪卫星进行定位的支持情况。
若由定位服务器进行位置计算, 步骤 S1002中, 终端根据伪卫星的辅助数据进行定位 测量后, 还包括:
终端将进行定位测量得到的测量结果发送给定位服务器;
终端接收定位服务器根据测量结果为终端进行位置计算后发送的定位结果。
若由终端进行位置计算, 伪卫星的辅助数据中包括 RF地图信息。
步骤 S1002中, 终端根据伪卫星的辅助数据进行定位测量后, 还包括:
终端根据进行定位测量得到的测量结果和 RF地图信息进行定位得到定位结果。
根据实际情况, 终端还可以将定位结果发送给定位服务器, 终端根据进行定位测量得 到的测量结果和 RF地图信息进行定位得到定位结果后, 还包括:
终端将定位结果发送给定位服务器。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量, 此时, 终端根据伪卫星的辅助数据进 行定位测量, 具体包括:
终端根据伪卫星的辅助数据,对伪卫星信号和 /或对 GNSS卫星信号进行定位测量得到 测量结果。
进一步, 为便于终端确定进行定位测量的卫星种类,伪卫星的辅助数据中包括: GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值;
终端进行定位测量得到测量结果前, 还包括:
终端根据 GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值确定进行定位测量 的卫星种类。
较佳的, 伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还相应提供一种定位服务器, 如图 11所示, 包括:
确定单元 1101 , 用于根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定 需要向终端发送伪卫星的辅助数据;
发送单元 1102, 用于将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数据 进行定位测量。
对应实施例一, 定位服务器具体为 SRNC, 确定单元 1101根据终端的服务小区信息确 定终端能够使用伪卫星定位, 具体包括:
根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的终端能 够使用伪卫星定位。
发送单元 1102具体用于:
通过广播方式将伪卫星的辅助数据发送给小区中的终端。
对应实施例一、 二、 三, 确定单元 1101具体用于: 接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和辅助数据请求 消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星 的辅助数据;
发送单元 1102具体用于:
将伪卫星的辅助数据携带在辅助数据中发送给终端。
当定位服务器是 E-SMLC或终端所在小区的 SRNC时, 确定单元 1101接收到辅助数 据请求消息, 具体为:
接收到终端发送的辅助数据请求消息;
当定位服务器是 SAS时, 确定单元 1101接收到辅助数据请求消息, 具体为: 接收到终端所在小区的 SRNC发送的辅助数据请求消息。
当定位服务器是 E-SMLC时, 确定单元 1101接收到辅助数据请求消息前, 还用于: 接收终端发送的定位能力上 4艮消息, 并根据定位能力上 4艮消息确定终端对使用伪卫星 定位的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时, 确定单元 1101接收到辅助数据请 求消息后, 还用于:
从辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
进一步, 当需要使用定位服务器进行位置计算时, 定位服务器中还包括:
定位单元, 用于接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并 在才 居测量结果为终端进行位置计算后, 将所得的定位结果发送给终端。
若由终端进行位置计算, 伪卫星的辅助数据中包括 RF地图信息。
定位服务器中还包括:
接收单元,用于接收终端根据伪卫星的辅助数据进行定位测量后,根据测量结果和 RF 地图信息进行定位得到的定位结果。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量。
测量结果为对伪卫星信号进行定位测量得到的测量结果和 /或对 GNSS 卫星信号进行 定位测量得到的测量结果。
为便于终端确定进行定位测量的卫星种类, 伪卫星的辅助数据中包括: GNSS卫星信 号功率门限值和 /或伪卫星信号功率门限值, 由终端根据 GNSS卫星信号功率门限值和 /或 伪卫星信号功率门限值确定进行定位测量的卫星种类。
具体的, 确定单元 1101具体用于:
根据终端的服务小区信息以及小区信息与伪卫星部署情况的对应关系, 确定终端的服 务小区的伪卫星部署情况; 根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星部署情况确定终 端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还相应提供一种终端, 如图 12所示, 包括:
数据接收单元 1201 ,用于接收定位服务器在根据终端的服务小区信息确定终端能够使 用伪卫星定位时, 发送的伪卫星的辅助数据;
定位测量单元 1202, 用于根据伪卫星的辅助数据进行定位测量。
对应实施例四, 定位服务器具体为 SRNC, 数据接收单元 1201具体用于: 接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
进一步, 数据接收单元 1201具体用于:
接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
对应实施例一、 二、 三, 数据接收单元 1201具体用于:
向定位服务器发送辅助数据请求消息, 或触发终端所在小区的 SRNC向定位服务器发 送辅助数据请求消息;
接收定位服务器根据终端对使用伪卫星定位的支持情况和辅助数据请求消息中终端 的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 辅助数据中携 带卫星的辅助数据。
当定位服务器是 E-SMLC时, 数据接收单元 1201向定位服务器发送辅助数据请求消 息前, 还用于:
向定位服务器发送定位能力上 4艮消息, 由定位服务器根据定位能力上 4艮消息确定终端 对使用伪卫星定位的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时,辅助数据请求消息携带终端对使用 伪卫星定位的支持情况。
当由定位服务器进行位置计算时, 定位测量单元 1202还用于:
根据伪卫星的辅助数据进行定位测量后, 将进行定位测量得到的测量结果发送给定位 服务器;
接收定位服务器根据测量结果为终端进行位置计算后发送的定位结果。
当由终端进行位置计算时, 伪卫星的辅助数据中包括 RF地图信息。
定位测量单元 1202还用于:
根据伪卫星的辅助数据进行定位测量后, 根据进行定位测量得到的测量结果和 RF地 图信息进行定位得到定位结果。
定位测量单元 1202还用于:
根据进行定位测量得到的测量结果和 RF地图信息进行定位得到定位结果后, 将定位 结果发送给定位服务器。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量。
定位测量单元 1202根据伪卫星的辅助数据进行定位测量, 具体包括:
根据伪卫星的辅助数据,对伪卫星信号和 /或对 GNSS卫星信号进行定位测量得到测量 结果。
为便于终端确定进行定位测量的卫星种类, 伪卫星的辅助数据中包括: GNSS卫星信 号功率门限值和 /或伪卫星信号功率门限值;
定位测量单元 1202还用于:
根据伪卫星的辅助数据进行定位测量前,根据 GNSS卫星信号功率门限值和 /或伪卫星 信号功率门限值确定进行定位测量的卫星种类。
伪卫星的辅助数据中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
本发明实施例还提供一种定位服务器, 包括:
处理器, 被配置为用于根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确 定需要向终端发送伪卫星的辅助数据; 将伪卫星的辅助数据发送给终端, 由终端根据伪卫 星的辅助数据进行定位测量。
对应实施例一, 定位服务器具体为 SRNC, 处理器根据终端的服务小区信息确定终端 能够使用伪卫星定位, 具体包括:
根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的终端能 够使用伪卫星定位。
处理器将伪卫星的辅助数据发送给终端, 具体为:
通过广播方式将伪卫星的辅助数据发送给小区中的终端。
处理器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端发 送伪卫星的辅助数据, 具体用于:
接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和辅助数据请求 消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星 的辅助数据;
处理器将伪卫星的辅助数据发送给终端, 具体为:
将伪卫星的辅助数据携带在辅助数据中发送给终端。 当定位服务器是 E-SMLC或终端所在小区的 SRNC时,处理器接收到辅助数据请求消 息, 具体为:
接收到终端发送的辅助数据请求消息;
当定位服务器是 SAS时, 处理器接收到辅助数据请求消息, 具体为:
接收到终端所在小区的 SRNC发送的辅助数据请求消息。
当定位服务器是 E-SMLC时, 处理器还被配置为用于: 接收到辅助数据请求消息前, 接收终端发送的定位能力上 4艮消息, 并根据定位能力上 4艮消息确定终端对使用伪卫星定位 的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时,处理器还被配置为用于:接收到辅 助数据请求消息后, 从辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
进一步, 当需要使用定位服务器进行位置计算时, 处理器还被配置为用于: 接收终端 根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并在根据测量结果为终端进行位 置计算后, 将所得的定位结果发送给终端。
若由终端进行位置计算, 伪卫星的辅助数据中包括 RF地图信息。
处理器还被配置为用于: 接收终端根据伪卫星的辅助数据进行定位测量后, 根据测量 结果和 RF地图信息进行定位得到的定位结果。
具体的, 处理器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要 向终端发送伪卫星的辅助数据, 具体包括:
根据终端的服务小区信息以及小区信息与伪卫星部署情况的对应关系, 确定终端的服 务小区的伪卫星部署情况;
根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星部署情况确定终 端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
该定位服务器还可以被配置为实现本发明实施例提供的终端定位方法中的其他功能。 该定位服务器进行各消息的接收和发送时, 可以通过收发信机模块和无线接口实现。 本发明实施例还提供一种终端, 包括:
处理器, 被配置为用于接收定位服务器在根据终端的服务小区信息确定终端能够使用 伪卫星定位时, 发送的伪卫星的辅助数据; 终端根据伪卫星的辅助数据进行定位测量。
对应实施例四, 定位服务器具体为 SRNC, 处理器接收定位服务器在根据终端的服务 小区信息确定终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据, 具体为:
接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
进一步, 处理器接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星 定位时, 发送的伪卫星的辅助数据, 具体为: 接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
对应实施例一、 二、 三, 处理器接收定位服务器在根据终端的服务小区信息确定终端 能够使用伪卫星定位时, 发送的伪卫星的辅助数据, 具体包括:
向定位服务器发送辅助数据请求消息, 或触发终端所在小区的 SRNC向定位服务器发 送辅助数据请求消息;
接收定位服务器根据终端对使用伪卫星定位的支持情况和辅助数据请求消息中终端 的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 辅助数据中携 带卫星的辅助数据。
当定位服务器是 E-SMLC时, 处理器还被配置为用于: 向定位服务器发送辅助数据请 求消息前, 向定位服务器发送定位能力上 ·ί艮消息, 由定位服务器根据定位能力上 ·ί艮消息确 定终端对使用伪卫星定位的支持情况;
当定位服务器是 SAS或终端所在小区的 SRNC时,辅助数据请求消息携带终端对使用 伪卫星定位的支持情况。
当由定位服务器进行位置计算时, 处理器还被配置为用于: 根据伪卫星的辅助数据进 行定位测量后, 将进行定位测量得到的测量结果发送给定位服务器;
接收定位服务器根据测量结果为终端进行位置计算后发送的定位结果。
当由终端进行位置计算时, 伪卫星的辅助数据中包括 RF地图信息。
处理器还被配置为用于: 根据伪卫星的辅助数据进行定位测量后, 根据进行定位测量 得到的测量结果和 RF地图信息进行定位得到定位结果。
处理器还被配置为用于: 根据进行定位测量得到的测量结果和 RF地图信息进行定位 得到定位结果后, 将定位结果发送给定位服务器。
终端可以根据测量的信号情况, 选择对伪卫星信号进行定位测量还是对 GNSS卫星信 号进行定位测量, 或者对二者信号均进行定位测量。
处理器根据伪卫星的辅助数据进行定位测量, 具体包括:
根据伪卫星的辅助数据,对伪卫星信号和 /或对 GNSS卫星信号进行定位测量得到测量 结果。
为便于终端确定进行定位测量的卫星种类, 伪卫星的辅助数据中包括: GNSS卫星信 号功率门限值和 /或伪卫星信号功率门限值;
处理器还被配置为用于: 根据伪卫星的辅助数据进行定位测量前, 根据 GNSS卫星信 号功率门限值和 /或伪卫星信号功率门限值确定进行定位测量的卫星种类。
该终端还可以被配置为实现本发明实施例提供的终端定位方法中的其他功能。
该终端进行各消息的接收和发送时, 可以通过收发信机模块和无线接口实现。 本发明实施例提供一种终端定位方法、 终端及定位服务器, 定位服务器在根据终端的 服务小区信息确定终端能够使用伪卫星定位时, 向终端发送伪卫星的辅助数据, 由于能够 及时更新终端中的伪卫星辅助数据 , 从而避免由于伪卫星的辅助数据不准确导致的终端定 位不准确, 进而提高终端定位的准确度。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 (包括但不限于磁盘存储器、 CD-ROM、 光学存储器等)上实施的计算机程 序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种终端定位方法, 其特征在于, 包括:
定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终 端发送伪卫星的辅助数据;
定位服务器将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数据进行定位 测量。
2、 如权利要求 1 所述的方法, 其特征在于, 所述定位服务器具体为服务无线网络控 制器 SRNC, 所述定位服务器根据终端的服务小区信息确定终端能够使用伪卫星定位, 具 体包括:
SRNC根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的 终端能够使用伪卫星定位。
3、 如权利要求 2 所述的方法, 其特征在于, 所述定位服务器将伪卫星的辅助数据发 送给终端, 具体包括:
SRNC通过广播方式将伪卫星的辅助数据发送给小区中的终端。
4、 如权利要求 1 所述的方法, 其特征在于, 所述定位服务器根据终端的服务小区信 息确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据, 具体包括: 定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和所 述辅助数据请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向 终端发送伪卫星的辅助数据;
所述定位服务器将伪卫星的辅助数据发送给终端, 具体包括:
定位服务器将伪卫星的辅助数据携带在辅助数据中发送给终端。
5、 如权利要求 4 所述的方法, 其特征在于, 当所述定位服务器是演进的服务移动位 置中心 E-SMLC或终端所在小区的 SRNC时, 所述定位服务器接收到辅助数据请求消息, 具体为:
所述定位服务器接收到终端发送的辅助数据请求消息;
当所述定位服务器是独立的服务移动位置中心 SAS时,所述定位服务器接收到辅助数 据请求消息, 具体为:
所述定位服务器接收到终端所在小区的 SRNC发送的辅助数据请求消息。
6、 如权利要求 5所述的方法, 其特征在于, 当所述定位服务器是 E-SMLC时, 所述 定位服务器接收到辅助数据请求消息前, 还包括:
所述定位服务器接收终端发送的定位能力上报消息, 并根据所述定位能力上报消息确 定终端对使用伪卫星定位的支持情况;
当所述定位服务器是 SAS或终端所在小区的 SRNC时,所述定位服务器接收到辅助数 据请求消息后, 还包括: 所述定位服务器从所述辅助数据请求消息中获取终端对使用伪卫 星定位的支持情况。
7、 如权利要求 1 所述的方法, 其特征在于, 所述定位服务器将伪卫星的辅助数据发 送给终端后, 还包括:
定位服务器接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并在根 据测量结果为所述终端进行位置计算后, 将所得的定位结果发送给终端。
8、 如权利要求 1所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括射频 RF地 图信息。
9、 如权利要求 8 所述的方法, 其特征在于, 所述定位服务器将伪卫星的辅助数据发 送给终端后, 还包括:
定位服务器接收终端根据伪卫星的辅助数据进行定位测量后, 根据测量结果和 RF地 图信息进行定位得到的定位结果。
10、 如权利要求 7或 9所述的方法, 其特征在于, 所述测量结果为对伪卫星信号进行 定位测量得到的测量结果和 /或对 GNSS卫星信号进行定位测量得到的测量结果。
11、 如权利要求 10所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括: GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值,由所述终端根据 GNSS卫星信号功率门 限值和 /或伪卫星信号功率门限值确定进行定位测量的卫星种类。
12、如权利要求 4所述的方法, 其特征在于, 定位服务器接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和所述辅助数据请求消息中终端的服务小区信息 确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据, 具体包括: 所述定位服务器根据所述终端的服务小区信息以及小区信息与伪卫星部署情况的对 应关系, 确定所述终端的服务小区的伪卫星部署情况;
所述定位服务器根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星 部署情况确定终端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
13、 如权利要求 1-12任一所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括: 伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
14、 一种终端定位方法, 其特征在于, 包括:
终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位时, 发 送的伪卫星的辅助数据;
终端根据伪卫星的辅助数据进行定位测量。
15、 如权利要求 14 所述的方法, 其特征在于, 所述定位服务器具体为服务无线网络 控制器 SRNC, 所述终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪 卫星定位时, 发送的伪卫星的辅助数据, 具体包括: 所述终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支 持伪卫星定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
16、 如权利要求 15所述的方法, 其特征在于, 所述终端接收 SRNC在根据小区位置 以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的终端能够使用伪卫星定位 时, 发送的伪卫星的辅助数据, 具体包括:
终端接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪 卫星定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
17、 如权利要求 14 所述的方法, 其特征在于, 所述终端接收定位服务器在根据终端 的服务小区信息确定终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据前, 还包括: 终端向定位服务器发送辅助数据请求消息, 或终端触发终端所在小区的 SRNC向定位 服务器发送辅助数据请求消息;
所述终端接收定位服务器在根据终端的服务小区信息确定终端能够使用伪卫星定位 时, 发送的伪卫星的辅助数据, 具体包括:
终端接收定位服务器根据终端对使用伪卫星定位的支持情况和所述辅助数据请求消 息中终端的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 所述 辅助数据中携带卫星的辅助数据。
18、 如权利要求 17 所述的方法, 其特征在于, 当所述定位服务器是演进的服务移动 位置中心 E-SMLC时, 所述终端向定位服务器发送辅助数据请求消息前, 还包括:
终端向定位服务器发送定位能力上 4艮消息, 由所述定位服务器根据所述定位能力上 4艮 消息确定终端对使用伪卫星进行定位的支持情况;
当所述定位服务器是独立的服务移动位置中心 SAS或终端所在小区的 SRNC时,所述 辅助数据请求消息携带终端对使用伪卫星进行定位的支持情况。
19、 如权利要求 14 所述的方法, 其特征在于, 所述终端根据伪卫星的辅助数据进行 定位测量后, 还包括:
终端将进行定位测量得到的测量结果发送给定位服务器;
终端接收所述定位服务器根据测量结果为所述终端进行位置计算后发送的定位结果。
20、 如权利要求 14所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括射频 RF 地图信息。
21、 如权利要求 20 所述的方法, 其特征在于, 所述终端根据伪卫星的辅助数据进行 定位测量后, 还包括:
终端根据进行定位测量得到的测量结果和所述 RF地图信息进行定位得到定位结果。
22、 如权利要求 21 所述的方法, 其特征在于, 所述终端根据进行定位测量得到的测 量结果和所述 RF地图信息进行定位得到定位结果后, 还包括: 终端将所述定位结果发送给定位服务器。
23、 如权利要求 19或 21所述的方法, 其特征在于, 所述终端根据伪卫星的辅助数据 进行定位测量, 具体包括:
终端根据伪卫星的辅助数据,对伪卫星信号和 /或对 GNSS卫星信号进行定位测量得到 测量结果。
24、 如权利要求 23所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括: GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值;
所述终端进行定位测量得到测量结果前, 还包括:
终端根据 GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值确定进行定位测量 的卫星种类。
25、 如权利要求 14-24任一所述的方法, 其特征在于, 所述伪卫星的辅助数据中包括: 伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
26、 一种定位服务器, 其特征在于, 包括:
确定单元, 用于根据终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要 向终端发送伪卫星的辅助数据;
发送单元, 用于将伪卫星的辅助数据发送给终端, 由终端根据伪卫星的辅助数据进行 定位测量。
27、 如权利要求 26 所述的定位服务器, 其特征在于, 所述定位服务器具体为服务无 线网络控制器 SRNC, 所述确定单元根据终端的服务小区信息确定终端能够使用伪卫星定 位, 具体包括:
根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星定位的终端能 够使用伪卫星定位。
28、 如权利要求 27所述的定位服务器, 其特征在于, 所述发送单元具体用于: 通过广播方式将伪卫星的辅助数据发送给小区中的终端。
29、 如权利要求 26所述的定位服务器, 其特征在于, 所述确定单元具体用于: 接收到辅助数据请求消息后, 根据终端对使用伪卫星定位的支持情况和所述辅助数据 请求消息中终端的服务小区信息确定终端能够使用伪卫星定位时, 确定需要向终端发送伪 卫星的辅助数据;
所述发送单元具体用于:
将伪卫星的辅助数据携带在辅助数据中发送给终端。
30、 如权利要求 29所述的定位服务器, 其特征在于, 当所述定位服务器是 E-SMLC 或终端所在小区的 SRNC时, 所述确定单元接收到辅助数据请求消息, 具体为:
接收到终端发送的辅助数据请求消息; 当所述定位服务器是 SAS时, 所述确定单元接收到辅助数据请求消息, 具体为: 接收到终端所在小区的 SRNC发送的辅助数据请求消息。
31、 如权利要求 30 所述的定位服务器, 其特征在于, 当所述定位服务器是演进的服 务移动位置中心 E-SMLC时, 所述确定单元接收到辅助数据请求消息前, 还用于:
接收终端发送的定位能力上 4艮消息, 并根据所述定位能力上 4艮消息确定终端对使用伪 卫星定位的支持情况;
当所述定位服务器是独立的服务移动位置中心 SAS或终端所在小区的 SRNC时,所述 确定单元接收到辅助数据请求消息后, 还用于:
从所述辅助数据请求消息中获取终端对使用伪卫星定位的支持情况。
32、 如权利要求 26所述的定位服务器, 其特征在于, 还包括:
定位单元, 用于接收终端根据伪卫星的辅助数据进行定位测量后发送的测量结果, 并 在才 居测量结果为所述终端进行位置计算后, 将所得的定位结果发送给终端。
33、 如权利要求 26 所述的定位服务器, 其特征在于, 所述伪卫星的辅助数据中包括 射频 RF地图信息。
34、 如权利要求 33所述的定位服务器, 其特征在于, 还包括:
接收单元,用于接收终端根据伪卫星的辅助数据进行定位测量后,根据测量结果和 RF 地图信息进行定位得到的定位结果。
35、 如权利要求 32或 34所述的定位服务器, 其特征在于, 所述测量结果为对伪卫星 信号进行定位测量得到的测量结果和 /或对 GNSS卫星信号进行定位测量得到的测量结果。
36、 如权利要求 35所述的定位服务器, 其特征在于, 所述伪卫星的辅助数据中包括: GNSS卫星信号功率门限值和 /或伪卫星信号功率门限值, 由所述终端根据 GNSS卫星信号 功率门限值和 /或伪卫星信号功率门限值确定进行定位测量的卫星种类。
37、 如权利要求 29所述的定位服务器, 其特征在于, 确定单元具体用于:
根据所述终端的服务小区信息以及小区信息与伪卫星部署情况的对应关系, 确定所述 终端的服务小区的伪卫星部署情况;
根据终端对使用伪卫星定位的支持情况和终端的服务小区的伪卫星部署情况确定终 端能够使用伪卫星定位时, 确定需要向终端发送伪卫星的辅助数据。
38、 如权利要求 26-37任一所述的定位服务器, 其特征在于, 所述伪卫星的辅助数据 中包括:
伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
39、 一种终端, 其特征在于, 包括:
数据接收单元, 用于接收定位服务器在根据终端的服务小区信息确定终端能够使用伪 卫星定位时, 发送的伪卫星的辅助数据; 定位测量单元, 用于根据伪卫星的辅助数据进行定位测量。
40、 如权利要求 39 所述的终端, 其特征在于, 所述定位服务器具体为服务无线网络 控制器 SRNC , 所述数据接收单元具体用于:
接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 发送的伪卫星的辅助数据。
41、 如权利要求 40所述的终端, 其特征在于, 所述数据接收单元具体用于: 接收 SRNC在根据小区位置以及小区覆盖范围内的伪卫星部署情况, 确定支持伪卫星 定位的终端能够使用伪卫星定位时, 通过广播方式发送的伪卫星的辅助数据。
42、 如权利要求 39所述的终端, 其特征在于, 所述数据接收单元具体用于: 向定位服务器发送辅助数据请求消息, 或触发终端所在小区的 SRNC向定位服务器发 送辅助数据请求消息;
接收定位服务器根据终端对使用伪卫星定位的支持情况和所述辅助数据请求消息中 终端的服务小区信息确定终端能够使用伪卫星定位时, 向终端发送的辅助数据, 所述辅助 数据中携带卫星的辅助数据。
43、 如权利要求 42 所述的终端, 其特征在于, 当所述定位服务器是演进的服务移动 位置中心 E-SMLC时,所述数据接收单元向定位服务器发送辅助数据请求消息前,还用于: 向定位服务器发送定位能力上 4艮消息, 由所述定位服务器根据所述定位能力上 4艮消息 确定终端对使用伪卫星定位的支持情况;
当所述定位服务器是独立的服务移动位置中心 SAS或终端所在小区的 SRNC时,所述 辅助数据请求消息携带终端对使用伪卫星定位的支持情况。
44、 如权利要求 39所述的终端, 其特征在于, 所述定位测量单元还用于:
根据伪卫星的辅助数据进行定位测量后, 将进行定位测量得到的测量结果发送给定位 服务器;
接收所述定位服务器根据测量结果为所述终端进行位置计算后发送的定位结果。
45、 如权利要求 39所述的终端, 其特征在于, 所述伪卫星的辅助数据中包括射频 RF 地图信息。
46、 如权利要求 45所述的终端, 其特征在于, 所述定位测量单元还用于:
根据伪卫星的辅助数据进行定位测量后,根据进行定位测量得到的测量结果和所述 RF 地图信息进行定位得到定位结果。
47、 如权利要求 46所述的终端, 其特征在于, 所述定位测量单元还用于:
根据进行定位测量得到的测量结果和所述 RF地图信息进行定位得到定位结果后, 将 所述定位结果发送给定位服务器。
48、 如权利要求 44或 46所述的终端, 其特征在于, 所述定位测量单元根据伪卫星的 辅助数据进行定位测量, 具体包括:
根据伪卫星的辅助数据,对伪卫星信号和 /或对 GNSS卫星信号进行定位测量得到测量 结果。
49、 如权利要求 48所述的终端, 其特征在于, 所述伪卫星的辅助数据中包括: GNSS 卫星信号功率门限值和 /或伪卫星信号功率门限值;
所述定位测量单元还用于:
根据伪卫星的辅助数据进行定位测量前,根据 GNSS卫星信号功率门限值和 /或伪卫星 信号功率门限值确定进行定位测量的卫星种类。
50、 如权利要求 39-49任一所述的终端, 其特征在于, 所述伪卫星的辅助数据中包括: 伪卫星的标识、 伪卫星的物理参数信息和伪卫星的导航电文。
PCT/CN2014/082394 2013-07-18 2014-07-17 一种终端定位方法、终端及定位服务器 WO2015007223A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310303594.9 2013-07-18
CN201310303594.9A CN104301994A (zh) 2013-07-18 2013-07-18 一种终端定位方法、终端及定位服务器

Publications (1)

Publication Number Publication Date
WO2015007223A1 true WO2015007223A1 (zh) 2015-01-22

Family

ID=52321499

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/082394 WO2015007223A1 (zh) 2013-07-18 2014-07-17 一种终端定位方法、终端及定位服务器

Country Status (2)

Country Link
CN (1) CN104301994A (zh)
WO (1) WO2015007223A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109000661A (zh) * 2018-07-05 2018-12-14 格星微电子科技成都有限公司 一种基于伪卫星载躁比指纹的室内导航方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112019007185A2 (pt) 2016-10-11 2019-09-17 Huawei Tech Co Ltd método e dispositivo de transmissão de informação
CN111077547A (zh) * 2019-12-26 2020-04-28 合肥移顺信息技术有限公司 定位方法及装置
CN114846865A (zh) * 2020-11-30 2022-08-02 北京小米移动软件有限公司 一种定位方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990297A (zh) * 2009-08-03 2011-03-23 中兴通讯股份有限公司 一种实现定位业务的方法及装置
US20120218145A1 (en) * 2011-02-25 2012-08-30 Snu R&Db Foundation Pseudolite-based navigation system
WO2013033464A2 (en) * 2011-08-30 2013-03-07 Qualcomm Incorporated Generic broadcast of location assistance data
CN103176197A (zh) * 2013-02-28 2013-06-26 江苏天源电子有限公司 辅助北斗卫星定位系统及基于该系统的定位追踪终端

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597988B1 (en) * 2000-09-22 2003-07-22 Sirf Technology, Inc. Network assisted pseudolite acquisition for enhanced GPS navigation
US7184776B2 (en) * 2000-10-20 2007-02-27 Nortel Networks Limited Technique for notification of mobile terminals by geographical co-ordinates
CN101877818B (zh) * 2009-04-30 2015-08-12 中兴通讯股份有限公司 定位业务辅助数据更新通知的方法及系统
CN101888587B (zh) * 2009-05-14 2014-12-10 中兴通讯股份有限公司 Lte系统中实现定位的方法及系统
CN102223708B (zh) * 2010-04-15 2016-03-30 中兴通讯股份有限公司 定位辅助数据更新的通知方法和系统、以及slp设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990297A (zh) * 2009-08-03 2011-03-23 中兴通讯股份有限公司 一种实现定位业务的方法及装置
US20120218145A1 (en) * 2011-02-25 2012-08-30 Snu R&Db Foundation Pseudolite-based navigation system
WO2013033464A2 (en) * 2011-08-30 2013-03-07 Qualcomm Incorporated Generic broadcast of location assistance data
CN103176197A (zh) * 2013-02-28 2013-06-26 江苏天源电子有限公司 辅助北斗卫星定位系统及基于该系统的定位追踪终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Evolved Universal Terrestrial Radio Access (E-UTRA), LTE Configuration Protocol (LPP) (3GPP TS 36. 355 version 10.7.0 Release 10", ETSI TS 136 355 V10.7.0 LTE;, 12 February 2013 (2013-02-12), pages 16 - 22 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109000661A (zh) * 2018-07-05 2018-12-14 格星微电子科技成都有限公司 一种基于伪卫星载躁比指纹的室内导航方法
CN109000661B (zh) * 2018-07-05 2021-10-22 格星微电子科技成都有限公司 一种基于伪卫星载噪比指纹的室内导航方法

Also Published As

Publication number Publication date
CN104301994A (zh) 2015-01-21

Similar Documents

Publication Publication Date Title
JP6101773B2 (ja) 屋内コンテキスト情報を送信するための方法および装置
US20220338269A1 (en) Terminal device infrastructure equipment and methods for determining a spatial position of the terminal based on received signals
WO2018036297A1 (zh) 室内定位和基于其的信息推送系统、方法、设备及终端
WO2015135486A1 (zh) 一种定位方法的选择、控制方法及装置
US9602990B2 (en) Method for providing network-based measurements for user equipment-based positioning
KR101085633B1 (ko) 로밍 중인 이동단말기의 위치 서버 선택방법 및 그 장치와그에 의한 이동단말기의 위치 결정 방법
CN110933715B (zh) 获取及提供定位辅助数据的方法、装置及设备
WO2018144104A1 (en) Systems and methods for position estimation using proximity devices
JP2012523761A (ja) 無線ネットワークにおいてピア・ツー・ピア位置決めを提供するための方法および装置
WO2015135478A1 (zh) 一种终端定位方法及设备
WO2013104311A1 (zh) 一种在mdt过程中确定ue定位信息的方法及装置
US20070120737A1 (en) Method and system for providing location assistance information to a mobile station
CN115119152B (zh) 用于定位协议消息的分段的方法及系统
CN102056221B (zh) 一种定位处理方法及设备
US20220286999A1 (en) User Equipment Location Information Reporting Method, User Equipment, and Network Device
WO2015007223A1 (zh) 一种终端定位方法、终端及定位服务器
CN114531642A (zh) 一种位置信息上报和获取方法、核心网设备及ue
CN107771408B (zh) 移动终端及其定位方法
US11493639B2 (en) A-GNSS positioning in wireless mesh communication system
CN103698792A (zh) 网络服务器、终端、定位系统和定位方法
WO2016023392A1 (zh) 辅助定位信息获取的方法、装置及终端
AU2014250652A1 (en) Method and apparatus for transmitting indoor context information
WO2024083356A1 (en) Providing and supporting location services via direct device-to-device connections

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14826868

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14826868

Country of ref document: EP

Kind code of ref document: A1