WO2020052313A1 - 卫星差分辅助数据的传输、定位方法及装置 - Google Patents

卫星差分辅助数据的传输、定位方法及装置 Download PDF

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Publication number
WO2020052313A1
WO2020052313A1 PCT/CN2019/092396 CN2019092396W WO2020052313A1 WO 2020052313 A1 WO2020052313 A1 WO 2020052313A1 CN 2019092396 W CN2019092396 W CN 2019092396W WO 2020052313 A1 WO2020052313 A1 WO 2020052313A1
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Prior art keywords
differential
auxiliary
information
auxiliary data
positioning
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PCT/CN2019/092396
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English (en)
French (fr)
Inventor
张大钧
全海洋
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电信科学技术研究院有限公司
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Priority to KR1020217010324A priority Critical patent/KR102651954B1/ko
Priority to US17/275,196 priority patent/US11480688B2/en
Priority to EP19858920.2A priority patent/EP3859398A4/en
Publication of WO2020052313A1 publication Critical patent/WO2020052313A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
    • G01S19/071—DGPS corrections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/40—Correcting position, velocity or attitude
    • G01S19/41—Differential correction, e.g. DGPS [differential GPS]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/009—Transmission of differential positioning data to mobile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0236—Assistance data, e.g. base station almanac
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and a device for transmitting and positioning satellite differential assistance data.
  • LBS Location Services
  • GNSS Global Satellite Navigation System
  • the embodiments of the present application provide a method and a device for transmitting and positioning satellite differential assistance data, which are used to ensure that on the basis of 5G or other developable technical networks, Beidou satellite positioning services can be performed with high accuracy.
  • an embodiment of the present application provides a method for transmitting satellite differential assistance data, including:
  • auxiliary information related to the Beidou satellite positioning system, the auxiliary information including differential auxiliary data;
  • the base station can broadcast the auxiliary information related to the Beidou satellite positioning system including the differential auxiliary data to the UE, thereby ensuring that the Beidou satellite positioning can be performed with high accuracy on the basis of 5G or other developable technical networks. service.
  • the differential auxiliary data is composed of observation data or correction data of the station, and provides double difference reference station data for the rover station, or directly provides correction data to eliminate errors related to the distance of the station.
  • the differential auxiliary data includes, but is not limited to, reference time, reference position, ionospheric mode, and real-time Kinematic (RTK) related parameters.
  • RTK real-time Kinematic
  • the auxiliary information used for positioning calculation of User Equipment further includes a Global Navigation Satellite System Identification (Global Identity Satellite System, GNSS ID), and a satellite-based enhanced system identification (Identity) Space Based System (SBAS ID).
  • GNSS ID Global Navigation Satellite System Identification
  • SBAS ID Satellite-based enhanced system identification
  • the SBAS system monitors the navigation satellites by a large number of widely distributed differential stations (known locations), obtains the original positioning data (pseudorange, carrier phase observations, etc.) and sends them to the central processing facility (main control station).
  • the latter obtains various positioning correction information of each satellite through calculation, sends it to the Geostationary Earth Orbit (GEO) satellite through the uplink injection station, and finally broadcasts the correction information to the majority of users, thereby achieving the purpose of improving positioning accuracy.
  • GEO Geostationary Earth Orbit
  • the auxiliary information used for positioning calculation of the UE further includes an instruction for confirming whether the differential auxiliary data is encrypted.
  • the indication of whether the differential auxiliary data is encrypted is encrypted by the network side, wherein the decryption instruction is carried by the LMF entity, and the UE decrypts the data according to the key of the corresponding level.
  • the LMF entity receives assistance information sent by the base station to assist in determining the differential assistance data used for UE positioning calculation; the differential assistance data is based on the used to assist determination in UE positioning calculation.
  • the auxiliary information of the differential auxiliary data is determined;
  • the differential auxiliary data used for UE positioning calculation refers to the differential auxiliary data of the UE's serving base station, serving cell, or serving base station transmission point (Transfer Point, TP).
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • Geographic location information of the base station or geographic location information of a cell under the jurisdiction of the base station, or geographic location information of a transmission point TP of the base station.
  • the LMF entity and the base station need to perform the interaction of the auxiliary information to calculate the Beidou-related auxiliary data.
  • the LMF entity calculates the base station's precise position information in combination with the differential data of the neighboring satellite reference stations to calculate The difference value of the base station is then transmitted to the UE as the UE's positioning compensation value.
  • the method further includes: acquiring auxiliary information sent by a satellite-based enhanced system for calculating the differential auxiliary data used for UE positioning calculation, the auxiliary information including the differential auxiliary data of the satellite-based enhanced system.
  • the satellite-based augmentation system is, for example, a Beidou satellite reference station.
  • a method for transmitting satellite differential assistance data provided in the embodiments of the present application further includes:
  • the LMF entity periodically updates the differential auxiliary data, and sends the updated differential auxiliary data to the base station.
  • an embodiment of the present application provides a method for transmitting satellite differential assistance data, which method includes:
  • the auxiliary information includes differential auxiliary data
  • the positioning system message Broadcasting or updating a positioning system message according to the assistance information, wherein the positioning system message carries the differential assistance data.
  • the base station After receiving the auxiliary information sent from the LMF entity, the base station will trigger the broadcast or update of the positioning system message according to the broadcast cycle from the LMF or whether the broadcast instruction is turned on.
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • the auxiliary information further includes an instruction to confirm whether the differential auxiliary data is encrypted.
  • the embodiment of the present application provides a method for transmitting satellite differential auxiliary data, further including:
  • the base station sends auxiliary information to the LMF entity to assist in determining the differential auxiliary data for UE positioning calculation.
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • the geographic location information of the base station or the geographic location information of the cell under the jurisdiction of the base station, or the geographic location information of the transmission point TP of the base station.
  • the embodiment of the present application provides a method for transmitting satellite differential auxiliary data, further including:
  • an embodiment of the present application provides a positioning method.
  • the method includes:
  • the positioning system message includes auxiliary information for UE positioning calculation, and the auxiliary information includes differential auxiliary data;
  • Determining location information of the user equipment UE according to the positioning system message Determining location information of the user equipment UE according to the positioning system message.
  • the UE calculates accurate position information based on the acquired Beidou satellite signal and the difference value obtained from the broadcast.
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • a positioning method provided in the embodiment of the present application further includes:
  • an embodiment of the present application provides a device for transmitting satellite differential assistance data.
  • the device includes:
  • a determining unit configured to obtain auxiliary information related to the Beidou satellite positioning system, and calculate auxiliary information used for UE positioning calculation, the auxiliary information including differential auxiliary data;
  • the sending unit is configured to send the auxiliary information related to the Beidou satellite positioning system to the base station in a broadcast manner.
  • an embodiment of the present application provides a device for transmitting satellite differential assistance data.
  • the device includes:
  • a receiving unit configured to receive auxiliary information for positioning calculation of the UE, where the auxiliary information includes differential auxiliary data;
  • An updating unit is configured to broadcast or update a positioning system message according to the assistance information, wherein the positioning system message carries the differential assistance data.
  • an embodiment of the present application provides a positioning device, where the device includes:
  • a receiving unit configured to receive a positioning system message, wherein the positioning system message includes auxiliary information for UE positioning calculation, and the auxiliary information includes differential auxiliary data;
  • a determining unit configured to determine position information of the user equipment UE according to the positioning system message.
  • Another embodiment of the present application provides a computing device including a memory and a processor, where the memory is used to store program instructions, the processor is used to call the program instructions stored in the memory, and according to the obtained program Perform any of the above methods.
  • Another embodiment of the present application provides a computer storage medium, where the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute any one of the foregoing methods.
  • FIG. 1 is a schematic diagram of a 5G mobile communication system in the prior art
  • FIG. 2 is a schematic diagram of a 5G wireless protocol architecture in the prior art
  • FIG. 3 is a schematic diagram of a 5G positioning network architecture in the prior art
  • FIG. 4 is a schematic diagram of a Beidou auxiliary data transmission process according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a Beidou auxiliary data update process according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a system broadcast flow of Beidou auxiliary data according to an embodiment of the present application.
  • FIG. 7 is a schematic flow chart of assistance information interaction between a base station and an LMF according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a method for transmitting satellite differential auxiliary data provided on an LMF side according to an embodiment of the present application
  • FIG. 9 is a schematic flowchart of a satellite differential auxiliary data transmission method provided at a base station side according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a positioning method provided on a UE side according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a satellite differential auxiliary data transmission device provided on an LMF side according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a satellite differential auxiliary data transmission device provided at a base station side according to an embodiment of the present application
  • FIG. 13 is a schematic structural diagram of a positioning device provided on a UE side according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a satellite differential auxiliary data transmission device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a positioning device provided on a user equipment side according to an embodiment of the present application.
  • the present application discloses a method and a device for transmitting and positioning satellite differential auxiliary data, which are used to ensure that on the basis of 5G or other developable technical networks, Beidou satellite positioning services can be performed with high accuracy.
  • FIG 1 is a schematic diagram of a 5G mobile communication system in the prior art.
  • gNBs are connected through a wired link.
  • GNB NR NodeB
  • core network nodes such as access and mobility management functions (AMF), user plane nodes (User Plane Functions, UPF), etc., the two are also connected by wired links.
  • AMF access and mobility management functions
  • UPF User Plane Functions
  • ng-eNB refers to a node that provides Evolved Universal Terrestrial Radio Access (E-UTRA) user plane and control plane protocol terminals, and it can also connect to 5GC through an NG interface.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • FIG. 2 is a schematic diagram of a 5G wireless protocol architecture in the prior art.
  • the 5G basic user plane protocol layer includes a Shared Device Access Protocol (SDAP), a Packet Data Convergence Protocol (PDCP), and a wireless link. Layer Control Protocol (Radio Link Control, RLC) and Media Access Control (Media Access Control, MAC), Port Physical Layer (Port Physical Layer, PHY).
  • the control plane protocol layer includes a non-access layer (Non-Access Stratum, NAS), a radio resource control layer (Radio Resource Control, RRC), PDCP, RLC, MAC, and PHY.
  • NAS Non-Access Stratum
  • RRC radio resource control layer
  • PDCP Radio Resource Control
  • RLC Radio Link Control
  • MAC Port Physical Layer
  • PHY Port Physical Layer
  • FIG. 3 is a schematic diagram of a 5G positioning network architecture in the prior art, which is a service-based positioning service network architecture, in which a Location Management Function (LMF) has the following functions: support positioning calculation, and support UE Obtain downlink positioning measurement results or positioning estimates, obtain uplink positioning measurement results from the Radio Access Network (RAN) side, and obtain auxiliary data from the RAN side.
  • LMF Location Management Function
  • the applicable system may be a global mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless service (general packet service, GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), general purpose Mobile system (universal mobile telecommunication system, UMTS), global interconnected microwave access (worldwide interoperability for microwave access, WiMAX) system, 5G system and 5G NR system.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS general purpose Mobile system
  • WiMAX global interconnected microwave access
  • the terminal devices involved in the embodiments of the present application may be devices that provide only voice and / or data connectivity to users, handheld devices with wireless connection functions, or other processing devices connected to a wireless modem.
  • the names of the terminal devices may be different.
  • the terminal devices may be called user equipment (UE).
  • UE user equipment
  • a wireless terminal device can communicate with one or more core networks via the RAN.
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (also called a "cellular" phone) and a computer with a mobile terminal device, for example, it can be portable , Portable, handheld, computer-built or vehicle-mounted mobile devices that exchange language and / or data with the wireless access network.
  • a wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point.
  • Remote terminal device remote terminal
  • access terminal device access terminal
  • user terminal user terminal
  • user agent user agent
  • user device user device
  • the network device involved in this embodiment of the present application may be a base station, and the base station may include multiple cells.
  • the base station may also be called an access point, or it may refer to a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or another name.
  • Network equipment can be used to convert the received air frames and Internet protocol (IP) packets to each other, as a router between the wireless terminal equipment and the rest of the access network, where the rest of the access network can include the internet Protocol (IP) communication network.
  • IP internet Protocol
  • the network equipment can also coordinate the management of the attributes of the air interface.
  • the network device involved in the embodiment of the present application may be a network device (base transceiver station, BTS) in a global mobile communication system (GSM) or code division multiple access (CDMA). ), Or network equipment (NodeB) in wide-band code division multiple access (WCDMA), or evolved network equipment in a long term evolution (LTE) system (evolutional node B, eNB or e-NodeB), 5G base station in 5G network architecture (next generation system), or home evolved node (HeNB), relay node (relay node), home base station ( femto), pico, etc. are not limited in the embodiments of the present application.
  • BTS base transceiver station
  • GSM global mobile communication system
  • CDMA code division multiple access
  • NodeB in wide-band code division multiple access
  • LTE long term evolution
  • 5G base station in 5G network architecture next generation system
  • HeNB home evolved node
  • relay node relay node
  • home base station femto
  • the LMF provides auxiliary information related to the Beidou to the 5G base station.
  • the information includes differential auxiliary data, GNSS ID, SBAS ID and other information.
  • the LMF can set whether the auxiliary information needs to be encrypted. That is, the LMF also carries According to the decryption instruction, the UE decrypts the data according to the key of the corresponding level according to the decryption instruction; and the LMF decides to update the differential auxiliary data related to the Beidou to the corresponding 5G base station at regular intervals.
  • the 5G base station After the 5G base station receives the auxiliary information sent by the LMF through broadcasting, it triggers the broadcast or update of the positioning system message according to the broadcast cycle from the LMF or whether the broadcast instruction is turned on, and returns an auxiliary data update configuration feedback message. Carrying failed or successful configuration update information, the 5G base station will broadcast or update the Beidou related auxiliary data in the designated or pre-configured cell according to the latest configuration information.
  • the UE In order to perform high-precision Beidou positioning, the UE obtains required Beidou-related auxiliary data according to the received broadcast-related broadcast information, and then performs corresponding positioning measurements based on the GNSS ID and SBAS ID in the broadcast information described herein, such as receiving a new The Beidou signal, combined with Beidou related auxiliary data, calculates accurate position information.
  • the Beidou related auxiliary information is confirmed through the LPPa protocol interaction between the 5G base station and the LMF.
  • the 5G base station provides its own precise location, the precise location of the cell under the jurisdiction of the 5G base station, or the precise location of the 5G base station transmission point TP
  • the information is sent to the LMF, or according to the auxiliary information request message initiated by the LMF, to feedback its precise location, the precise location of the cell under its jurisdiction, or the precise geographic location of the transmission point of the 5G base station.
  • the Beidou auxiliary data (differential data) transmission process includes:
  • Step 401 The LMF decides to provide the differential auxiliary data related to Beidou to the 5G base station (NR gNB).
  • the generated differential auxiliary data is formed into a system message block (System Information Block (SIB)) in the form of NR PPa, and then, together with the broadcast Information such as the period, whether to encrypt or not, and generate the corresponding NR PPa message, which also needs to carry GNSS ID (such as the identifier of the Beidou Satellite Navigation System BDS) and SBAS ID information, which refers to the differential auxiliary data related to Beidou;
  • SIB System Information Block
  • GNSS ID such as the identifier of the Beidou Satellite Navigation System BDS
  • SBAS ID information which refers to the differential auxiliary data related to Beidou
  • the auxiliary data configuration message from the LMF may include an instruction to start or stop broadcasting;
  • Step 402 The 5G base station (NR NBNB) will return an auxiliary data initial configuration feedback message, and the message may carry failed or successful configuration information;
  • the 5G base station (NR gNB) will decide to broadcast / or stop broadcasting the Beidou related differential auxiliary data in the designated or pre-configured cell according to the configuration information.
  • the Beidou auxiliary data (differential data) update process includes:
  • Step 501 The LMF decides to update the differential auxiliary data related to the Beidou to the corresponding 5G base station (NR gNB) at a certain interval.
  • the updated differential auxiliary data is composed of an SIB (System Message Block) in the form of NR PPa. May include updated broadcast cycles or encrypted instruction information to generate corresponding NR PPa messages, which also need to carry GNSS ID (such as: BDS) and SBAS ID information, the information refers to the differential auxiliary data related to Beidou;
  • SIB System Message Block
  • the LMF entity side and the RAN side need to be transferred through the AMF protocol, and cannot be directly transmitted between the LMF and the RAN.
  • Step 502 The 5G base station (NR, gNB) will update the stored configuration according to the GNSS ID and the SBAS ID, and then return the auxiliary data update configuration feedback message, which may carry failed or successful configuration update information;
  • the 5G base station (NR gNB) will decide to update the broadcasted Beidou related differential auxiliary data in the designated or pre-configured cell according to the latest configuration information.
  • Embodiment 3 The system broadcast process of Beidou auxiliary data (differential data), referring to FIG. 6, specifically includes:
  • Step 601 In order to perform high-precision Beidou positioning, the UE obtains required Beidou-related auxiliary data according to receiving positioning-related broadcast information;
  • Step 602 The UE will perform corresponding positioning measurement according to the GNSS ID (such as BDS) and SBAS ID, such as receiving a new Beidou signal and combining the auxiliary data related to the Beidou to calculate the initial position information;
  • the GNSS ID such as BDS
  • SBAS ID such as receiving a new Beidou signal and combining the auxiliary data related to the Beidou to calculate the initial position information
  • the UE calculates accurate position information by difference calculation based on the obtained Beidou satellite signal and the difference value obtained from the broadcast.
  • Step 603 The UE obtains Beidou related auxiliary data updates.
  • Step 604 The UE corrects the estimation of the UE position according to the updated Beidou auxiliary data, that is, the UE positions are corrected according to the periodically updated difference value.
  • the UE repeatedly iterates steps 603 to 604 until a UE position estimation with sufficient accuracy (with an update period of 1 s to reach a positioning accuracy of the decimeter level), wherein the number of iterations depends on the implementation of the algorithm.
  • Embodiment 4 Refer to FIG. 7 for an auxiliary information interaction process between a base station and an LMF, including:
  • Step 701 In order to calculate the differential data of the Beidou, the LMF needs to know the precise location information used to locate the 5G base station, and initiates an auxiliary information request message, which may include the specified cell information;
  • the cell message is, for example, an identifier of a cell ID and a Real-Time Transport Protocol (TRP) ID.
  • TRP Real-Time Transport Protocol
  • the target cell After the LMF initiates the auxiliary information request message, the target cell will return its precise geographic location. Then, the LMF calculates the difference value of the base station based on the precise location information of the base station and the difference data of the neighboring satellite reference station.
  • Step 702 The 5G base station (NR, gNB) feeds back the auxiliary information report message to the LMF, and the message contains at least the precise location information of the cell under its jurisdiction (or the cell designated by the LMF) or the TP.
  • NR 5G base station
  • gNB 5G base station
  • Step 703 allow the 5G base station (NR, gNB) to independently carry auxiliary information to the LMF through other NR PPa uplink messages (NG-RAN sends to the LMF), and the message includes at least the cell under its jurisdiction (or the cell designated by the LMF) ) Or TP's exact location information.
  • NR 5G base station
  • gNB 5G base station
  • NG-RAN NR PPa uplink messages
  • the LMF calculates the difference value of the base station based on the accurate position information of the base station and the difference data of the neighboring satellite reference station, and then transmits the value to the UE as the positioning compensation value of the UE.
  • the method and the device are based on the same application concept. Since the principle of the method and the device for solving the problem is similar, the implementation of the device and the method can be referred to each other, and duplicated details will not be repeated.
  • an embodiment of the present application provides a method for transmitting satellite differential auxiliary data.
  • the method includes:
  • the auxiliary information used for positioning calculation of the UE further includes a global navigation satellite system identifier GNSS ID, and a satellite-based enhanced system identifier SBAS ID.
  • GNSS ID global navigation satellite system identifier
  • SBAS ID satellite-based enhanced system identifier
  • the auxiliary information used for positioning calculation of the UE further includes an instruction for confirming whether the differential auxiliary data is encrypted.
  • the method for transmitting satellite differential assistance data further includes:
  • the differential auxiliary data used for UE positioning calculation is determined according to the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation;
  • the differential auxiliary data used for UE positioning calculation refers to the differential auxiliary data of the UE's serving base station, serving cell, or serving base station transmission point TP.
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • the geographic location information of the base station or the geographic location information of the cell under the jurisdiction of the base station, or the geographic location information of the transmission point TP of the base station.
  • the method further includes: obtaining auxiliary information sent by a satellite-based enhanced system for calculating the differential assistance data used for UE positioning calculation, the auxiliary information including but not limited to the differential assistance of the satellite-based enhanced system data.
  • the method for transmitting satellite differential assistance data further includes:
  • the differential auxiliary data is updated periodically, and the updated differential auxiliary data is sent to the base station.
  • an embodiment of the present application provides a method for transmitting satellite differential assistance data.
  • the method includes:
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • the auxiliary information further includes an instruction to confirm whether the differential auxiliary data is encrypted.
  • the method for processing satellite differential assistance data further includes:
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • the geographic position information of the base station or the geographic position information of the cell under the jurisdiction of the base station, or the geographic position information of the transmission point TP of the base station.
  • the method for processing satellite differential assistance data further includes:
  • an embodiment of the present application provides a positioning method. Referring to FIG. 10, the method includes:
  • S301 Receive a positioning system message, where the positioning system message includes auxiliary information for UE positioning calculation, and the auxiliary information includes differential auxiliary data;
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • the method for processing satellite differential assistance data further includes:
  • an embodiment of the present application provides a device for transmitting satellite differential assistance data. Referring to FIG. 11, it includes:
  • a determining unit 11 is configured to obtain and calculate auxiliary information related to the Beidou satellite positioning system, where the auxiliary information includes, but is not limited to, differential auxiliary data;
  • the sending unit 12 is configured to send the auxiliary information related to the Beidou satellite positioning system to a 5G base station in a broadcast manner.
  • an embodiment of the present application provides a device for transmitting satellite differential assistance data. Referring to FIG. 12, it includes:
  • the receiving unit 21 is configured to receive auxiliary information for positioning calculation of the UE, where the auxiliary information includes, but is not limited to, differential auxiliary data;
  • the updating unit 22 is configured to broadcast or update a positioning system message according to the assistance information, where the positioning system message carries the differential assistance data.
  • an embodiment of the present application provides a positioning device. Referring to FIG. 13, it includes:
  • the receiving unit 31 is configured to receive a positioning system message, where the positioning system message includes auxiliary information for UE positioning calculation, and the auxiliary information includes, but is not limited to, differential auxiliary data;
  • the determining unit 32 is configured to determine position information of the user equipment UE according to the positioning system message.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional unit.
  • the integrated unit When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium.
  • a computer device which may be a personal computer, a server, or a network device
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks or compact discs, and other media that can store program codes .
  • An embodiment of the present application provides a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like.
  • the computing device may include a central processing unit (CPU), a memory, an input / output device, etc.
  • the input device may include a keyboard, a mouse, a touch screen, etc.
  • the output device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), cathode ray tube (Cathode Ray Tube, CRT) and so on.
  • LCD liquid crystal display
  • CRT cathode ray tube
  • the memory may include a read-only memory (ROM) and a random access memory (RAM), and provide the processor with program instructions and data stored in the memory.
  • ROM read-only memory
  • RAM random access memory
  • the memory may be used to store a program of any of the methods provided in the embodiments of the present application.
  • the processor invokes program instructions stored in the memory, and the processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions.
  • the embodiment of the present application provides a computer storage medium for storing computer program instructions for the above-mentioned apparatus provided in the embodiment of the present application, which includes a program for executing any one of the methods provided in the embodiment of the present application.
  • an embodiment of the present application provides a device for transmitting satellite differential auxiliary data. Referring to FIG. 14, it includes:
  • the processor 500 is configured to read a program in the memory 520 and execute the following processes:
  • auxiliary information related to the Beidou satellite positioning system
  • the auxiliary information including, but not limited to, differential auxiliary data
  • the auxiliary information related to the Beidou satellite positioning system is transmitted to the 5G base station through a transceiver 510 in a broadcast manner.
  • the auxiliary information for positioning calculation of the UE further includes a Global Navigation Satellite System Identification (Global Identity Navigation System, GNSS ID), and a Space Augmentation System Identification (Identity Based Space Augmentation System, SBAS ID).
  • GNSS ID Global Navigation Satellite System Identification
  • SBAS ID Space Augmentation System Identification
  • the auxiliary information used for positioning calculation of the UE further includes an instruction for confirming whether the differential auxiliary data is encrypted.
  • the LMF entity receives auxiliary information sent by the base station to assist in determining the differential auxiliary data used for UE positioning calculation; the differential auxiliary data used for UE positioning calculation is based on the used to assist determination Determining auxiliary information of the differential auxiliary data used for UE positioning calculation;
  • the differential auxiliary data used for UE positioning calculation refers to the differential auxiliary data of the UE's serving base station, serving cell, or serving base station transmission point TP.
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • the geographic location information of the base station or the geographic location information of the cell under the jurisdiction of the base station, or the geographic location information of the transmission point TP of the base station.
  • processor 500 is further configured to:
  • the auxiliary information includes, but is not limited to, the differential auxiliary data of the satellite-based enhanced system.
  • processor 500 is further configured to:
  • the differential auxiliary data is periodically updated, and the updated differential auxiliary data is periodically sent to the base station through the transceiver 510.
  • the transceiver 510 is configured to receive and send data under the control of the processor 500.
  • the processor 500 is configured to read the program in the memory 520 and execute the following processes:
  • auxiliary information for UE location calculation through the transceiver 510, the auxiliary information including but not limited to differential auxiliary data;
  • the positioning system message Broadcasting or updating a positioning system message according to the assistance information, wherein the positioning system message carries the differential assistance data.
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • the auxiliary information further includes an instruction to confirm whether the differential auxiliary data is encrypted.
  • the processor 500 is further configured to send, through the transceiver 510, auxiliary information to the LMF entity to assist in determining the differential auxiliary data used for UE positioning calculation.
  • the auxiliary information used to assist in determining the differential auxiliary data used for UE positioning calculation includes:
  • the geographic location information of the base station or the geographic location information of the cell under the jurisdiction of the base station, or the geographic location information of the transmission point TP of the base station.
  • processor 500 is further configured to:
  • the updated differential assistance data is sent to the user equipment UE through the transceiver 510.
  • the transceiver 510 is configured to receive and send data under the control of the processor 500.
  • the computer storage medium may be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as a floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).
  • magnetic storage such as a floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)
  • an embodiment of the present application provides a positioning device. Referring to FIG. 15, it includes:
  • the processor 600 is configured to read a program in the memory 620 and execute the following processes:
  • the auxiliary information includes, but is not limited to, differential auxiliary data
  • Determining location information of the user equipment UE according to the positioning system message Determining location information of the user equipment UE according to the positioning system message.
  • the auxiliary information further includes a GNSS ID and a SBAS ID.
  • processor 600 is further configured to:
  • the method provided in the embodiment of the present application may be applied to a terminal device or a network device.
  • the terminal device may also be referred to as User Equipment ("UE” for short), Mobile Station ("MS” for short), Mobile Terminal (Mobile), etc.
  • UE User Equipment
  • MS Mobile Station
  • Mobile Mobile
  • the terminal may Have the ability to communicate with one or more core networks via Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal can be a mobile phone (or a "cellular" phone), or a computer with a mobile nature.
  • the terminal may also be a portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile device.
  • a network device may be a base station (for example, an access point), which refers to a device in an access network that communicates with a wireless terminal through one or more sectors on an air interface.
  • the base station can be used to convert the received air frames and IP packets to each other, and serve as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the attribute management of the air interface.
  • the base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (NodeB or eNB or e-NodeB, evolutional Node in LTE) B), or gNB, etc. in a 5G system. It is not limited in the embodiments of the present application.
  • the above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method steps are executed.
  • the present application discloses a method and device for transmitting and positioning satellite differential assistance data, which are used to ensure that on the basis of 5G or other developable technical networks, Beidou satellite positioning services can be better performed .
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) containing computer-usable program code.
  • a computer-usable storage media including, but not limited to, disk storage, optical storage, and the like
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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

Abstract

一种卫星差分辅助数据的传输、定位方法及装置，用于保证在5G或其他可发展的技术网络基础上，能够更好地进行高精度的北斗卫星定位服务。一种卫星差分辅助数据的传输方法包括：LMF获取北斗卫星定位系统相关的辅助信息，并计算用于UE定位计算的辅助信息，辅助信息包括差分辅助数据（S101）；以广播的方式向基站发送用于UE定位计算的辅助信息（S102）。

Description

卫星差分辅助数据的传输、定位方法及装置
本申请要求在2018年09月14日提交中国专利局、申请号为201811075546.8、申请名称为“卫星差分辅助数据的传输、定位方法及装置”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
本申请涉及通信技术领域，尤其涉及一种卫星差分辅助数据的传输、定位方法及装置。
背景技术
位置服务(Location Based Services，LBS)是一种通过无线通信网络或其他定位系统获取终端位置信息，再结合地理信息系统为用户提供与位置相关的各类信息的服务。时至今日，基于全球卫星导航系统(Global Navigation Satellite System，GNSS)的室外定位技术(北斗卫星定位技术)已经广泛应用于各种领域，包括目前的移动终端，但存在着精度明显不够高的问题。
发明内容
本申请实施例提供了一种卫星差分辅助数据的传输、定位方法及装置，用于保证在5G或其他可发展的技术网络基础上，能够更好地进行高精度的北斗卫星定位服务。
在定位管理功能(Location management function，LMF)实体侧，本申请实施例提供了一种卫星差分辅助数据的传输方法，包括：
获取并计算北斗卫星定位系统相关的辅助信息，所述辅助信息包括差分辅助数据；
以广播的方式向基站发送所述北斗卫星定位系统相关的辅助信息。
通过该方法，使得基站可以广播包括差分辅助数据的北斗卫星定位系统 相关的辅助信息给UE，从而可以保证在5G或其他可发展的技术网络基础上，能够更好地进行高精度的北斗卫星定位服务。
所述差分辅助数据是由测站的观测数据或改正数据组成，为流动站提供双差的参考站数据，或者直接提供改正数据，以消除与测站距离相关的误差。
其中，所述差分辅助数据，包括但不限于参考时间、参考位置、电离层模式、实时动态(Real-Time Kinematic，RTK)相关参数。
可选地，所述用于用户设备(User Equipment，UE)定位计算的辅助信息中还包括全球导航卫星系统标识(Identity of Global Navigation Satellite System，GNSS ID)，和星基增强系统标识(Identity of Space Based Augmentation System，SBAS ID)。
其中SBAS系统是由大量分布极广的差分站(位置已知)对导航卫星进行监测，获得原始定位数据(伪距、载波相位观测值等)，并送至中央处理设施(主控站)，后者通过计算得到各卫星的各种定位修正信息，通过上行注入站发给地球同步轨道(Geostationary Earth Orbit，GEO)卫星，最后将修正信息播发给广大用户，从而达到提高定位精度的目的。
可选地，所述用于UE定位计算的辅助信息中还包括确认所述差分辅助数据是否加密的指示。
所述差分辅助数据是否加密的指示由网络侧进行加密，其中解密指示由LMF实体携带，UE按照对应级别的密钥进行解密数据。
可选地，LMF实体接收所述基站发送的用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息；所述差分辅助数据是根据所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息确定的；
其中，用于UE定位计算的所述差分辅助数据是指UE的服务基站、或服务小区、或服务基站传输点(Transfer Point，TP)的差分辅助数据。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
所述基站的地理位置信息、或所述基站所辖的小区的地理位置信息、或 所述基站的传输点TP的地理位置信息。
本申请实施例中LMF实体与基站之间需要进行所述辅助信息的交互来计算北斗相关的辅助数据，其中，LMF实体是根据基站的精确位置信息结合相邻卫星参考站的差分数据，计算出该基站的差分数值，然后将该数值作为UE的定位补偿数值传给UE。
可选地，该方法还包括：获取星基增强系统发送的用于计算用于UE定位计算的所述差分辅助数据的辅助信息，该辅助信息包含所述星基增强系统的差分辅助数据。
其中，所述星基增强系统，例如北斗卫星参考站。
可选地，本申请实施例提供的一种卫星差分辅助数据的传输方法还包括：
LMF实体周期性地更新所述差分辅助数据，并将更新后的差分辅助数据发送给基站。
在基站侧，本申请实施例提供一种卫星差分辅助数据的传输方法，该方法包括：
接收用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
通过该方法，基站接收到来自LMF实体发送的辅助信息后，将依据来自LMF的广播周期，或是否开启广播指示来触发定位系统消息的广播或更新。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，所述辅助信息中还包括确认所述差分辅助数据是否加密的指示。
可选地，本申请实施例提供一种卫星差分辅助数据的传输方法还包括：
基站向LMF实体发送用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
基站的地理位置信息、或基站所辖的小区的地理位置信息、或基站的传 输点TP的地理位置信息。
可选地，本申请实施例提供一种卫星差分辅助数据的传输方法还包括：
接收周期性更新后的差分辅助数据；
向用户设备UE发送更新后的差分辅助数据。
在UE侧，本申请实施例提供了一种定位方法，该方法包括：
接收定位系统消息，其中，所述定位系统消息中包括用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
根据所述定位系统消息，确定用户设备UE的位置信息。
通过该方法，UE根据获取的北斗卫星信号，结合广播中获取的差分数值，进行差分计算精确的位置信息。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，本申请实施例提供的一种定位方法还包括：
接收周期性更新后的用于UE定位计算的辅助信息；
根据所述更新后的用于UE定位计算的辅助信息，对所述UE的位置信息进行修正。
在LMF实体侧上，本申请实施例提供了一种卫星差分辅助数据的传输装置，该装置包括：
确定单元，用于获取北斗卫星定位系统相关的辅助信息，并计算用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
发送单元，用于以广播的方式向基站发送所述北斗卫星定位系统相关的辅助信息。
相应地，在基站侧，本申请实施例提供了一种卫星差分辅助数据的传输装置，该装置包括：
接收单元，用于接收用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
更新单元，用于根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
在UE侧，本申请实施例提供了一种定位装置，该装置包括：
接收单元，用于接收定位系统消息，其中，所述定位系统消息中包括用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
确定单元，用于根据所述定位系统消息，确定用户设备UE的位置信息。
本申请另一实施例提供了一种计算设备，其包括存储器和处理器，其中，所述存储器用于存储程序指令，所述处理器用于调用所述存储器中存储的程序指令，按照获得的程序执行上述任一种方法。
本申请另一实施例提供了一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行上述任一种方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中5G移动通信系统的示意图；
图2为现有技术中5G无线协议架构的示意图；
图3为现有技术中一种5G定位网络架构的示意图；
图4为本申请实施例提供的一种北斗辅助数据传输流程示意图；
图5为本申请实施例提供的一种北斗辅助数据更新流程示意图；
图6为本申请实施例提供的一种北斗辅助数据的系统广播流程示意图；
图7为本申请实施例提供的一种基站与LMF间的辅助信息交互流程示意图；
图8为本申请实施例在LMF侧提供的一种卫星差分辅助数据的传输方法的流程示意图；
图9为本申请实施例在基站侧提供的一种卫星差分辅助数据的传输方法 的流程示意图；
图10为本申请实施例在UE侧提供的一种定位方法的流程示意图；
图11为本申请实施例在LMF侧提供的一种卫星差分辅助数据的传输装置的结构示意图；
图12为本申请实施例在基站侧提供的一种卫星差分辅助数据的传输装置的结构示意图；
图13为本申请实施例在UE侧提供的一种定位装置的结构示意图；
图14为本申请实施例提供的一种卫星差分辅助数据的传输装置的结构示意图；
图15为本申请实施例在用户设备侧提供的一种定位装置的结构示意图。
具体实施方式
本申请公开了一种卫星差分辅助数据的传输、定位方法及装置，用于保证在5G或其他可发展的技术网络基础上，能够更好地进行高精度的北斗卫星定位服务。
图1为现有技术中5G移动通信系统的示意图，在5G系统中，网络侧的节点之间大多进行有线连接，具体参见图1，即gNB之间通过有线链路连接，gNB(NR NodeB)和核心网节点，例如访问和移动管理功能(Access and Mobility Management Function，AMF)，用户面节点(User Plane Function，UPF)等，二者之间也是采取有线链路连接。
其中，ng-eNB是指提供演进通用陆地无线接入(Evolved Universal Terrestrial，E-UTRA)用户平面和控制平面协议终端的节点，它还能够通过NG接口连接到5GC。
图2为现有技术中5G无线协议架构的示意图，5G基本用户平面协议层包括共享设备访问协议(Shared Device Access Protocol，SDAP)，分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)，无线链路层控制协议(Radio Link Control，RLC)和媒体访问控制(Media Access Control，MAC)，端口物 理层(Port Physical Layer，PHY)。控制平面协议层包括非接入层(Non-Access Stratum，NAS)，无线资源控制层(Radio Resource Control，RRC)，PDCP，RLC，MAC和PHY。用户平面和控制平面的协议栈架构具体参见图2。
图3为现有技术中一种5G定位网络架构的示意图，这是一种基于业务的定位服务网络架构，其中定位管理功能(Location Management Function，LMF)具备下述功能：支持定位计算，从UE获取下行定位测量结果或定位估计，从无线接入网(Radio Access Network，RAN)侧获得上行定位测量结果，从RAN侧获得辅助数据等。
本申请实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G系统以及5G NR系统等。这些系统中均包括终端设备和网络设备。
本申请实施例涉及的终端设备，可以是只向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(user equipment，UE)。无线终端设备可以经RAN与一个或多个核心网进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiated  protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本申请实施例中并不限定。
本申请实施例涉及的网络设备，可以是基站，该基站可以包括多个小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(internet protocol，IP)分组进行相互转换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本申请实施例涉及的网络设备可以是全球移动通信系统(global system for mobile communications，GSM)或码分多址接入(code division multiple access，CDMA)中的网络设备(base transceiver station，BTS)，也可以是带宽码分多址接入(wide-band code division multiple access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站，也可是家庭演进基站(home evolved node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本申请实施例中并不限定。
下面结合说明书附图对本申请各个实施例进行详细描述。需要说明的是，本申请实施例的展示顺序仅代表实施例的先后顺序，并不代表实施例所提供的技术方案的优劣，且所描述的实施例仅仅是本申请一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例中，LMF提供北斗相关的辅助信息给5G基站，信息中包括差分辅助数据、GNSS ID、SBAS ID等信息，此外，LMF可以设置该辅助信息是否需要加密，即，同时LMF携带有解密指示，UE根据所述解密指示，按照对应级别的密钥进行数据的解密；且LMF每隔一定时间，决定更新北斗相关的差分辅助数据给对应的5G基站。
当5G基站接收到LMF通过广播的方式发送的辅助信息之后，依据来自LMF的广播周期，或是否开启广播指示，触发定位系统消息的广播或更新，并返回辅助数据更新配置反馈消息，消息中可携带失败或成功的配置更新信息，5G基站将根据最新的配置信息在指定的或者预配置的小区下广播或更新北斗相关的辅助数据。
为了进行高精度的北斗定位，UE依据接收定位相关的广播信息来获取所需北斗相关辅助数据，然后根据此所述广播信息中的GNSS ID和SBAS ID来进行相应的定位测量，例如接收新的北斗信号，结合北斗相关的辅助数据，计算出精确的位置信息。
其中，北斗相关辅助信息是通过5G基站与LMF之间通过LPPa协议交互来确认的，例如，5G基站提供自己的精确位置、5G基站所辖小区的精确位置或5G基站传输点TP的精确的位置信息给LMF，或者根据LMF发起的辅助信息请求消息，来反馈自己的精确位置、所辖小区的精确位置或5G基站传输点的精确的地理位置。
实施例一、北斗辅助数据(差分数据)传输流程，具体参见图4，包括：
步骤401：LMF决定提供北斗相关的差分辅助数据给5G基站(NR gNB)，具体地，将生成的差分辅助数据以NR PPa的形式组成系统消息块(System Information Block，SIB)，随后，连同广播周期，是否加密等信息，生成对应的NR PPa消息，消息中还需要携带GNSS ID(如：北斗卫星导航系统BDS的标识)和SBAS ID信息，所述信息指属于北斗相关的差分辅助数据；其中来自LMF的辅助数据配置消息中，可以包含开启或停止广播指示；
步骤402：5G基站(NR gNB)将返回辅助数据初始配置反馈消息，消息 中可以携带失败或成功的配置信息；
5G基站(NR gNB)将根据配置信息，决定在指定的或者预配置的小区下广播/或停止广播北斗相关的差分辅助数据。
实施例二、北斗辅助数据(差分数据)更新流程，具体参见图5，包括：
步骤501：LMF每隔一定时间，决定更新北斗相关的差分辅助数据给对应的5G基站(NR gNB)，具体地，将更新的差分辅助数据以NR PPa的形式组成SIB(系统消息块)，随后，可能包含更新的广播周期，或是加密指示信息，生成对应的NR PPa消息，消息中还需要携带GNSS ID(如：BDS)和SBAS ID信息，所述信息指属于北斗相关的差分辅助数据；
其中，所述LMF实体侧与RAN侧之间需要通过AMF协议进行中转，LMF与RAN之间无法直接传输。
步骤502：5G基站(NR gNB)将依据GNSS ID和SBAS ID更新存储的配置，随后返回辅助数据更新配置反馈消息，消息中可以携带失败或成功的配置更新信息；
5G基站(NR gNB)将根据最新的配置信息，决定在指定的或者预配置的小区下更新广播的北斗相关的差分辅助数据。
实施例三、北斗辅助数据(差分数据)的系统广播过程，参见图6，具体包括：
步骤601、为了进行高精度的北斗定位，UE依据接收定位相关的广播信息以获取所需的北斗相关辅助数据；
步骤602、UE将根据GNSS ID(如：BDS)和SBAS ID，进行相应的定位测量，如，接收新的北斗信号，结合北斗相关的辅助数据，计算出初始的位置信息；
其中，UE根据获取的北斗卫星信号，结合广播中获取的差分数值，进行差分计算精确的位置信息。
步骤603、UE获取北斗相关辅助数据更新；
步骤604、UE根据更新的北斗辅助数据，修正UE位置的估算，即根据 周期更新的差分数值来修正UE的位置；
UE反复迭代步骤603～步骤604，直至获得足够精度(更新周期为1s，可达到分米级别的定位精度)的UE位置估算，其中，所述迭代次数具体取决于算法的实现。
实施例四、基站与LMF间的辅助信息交互过程参见图7，包括：
步骤701、LMF为了计算北斗的差分数据，需要获知用于定位5G基站的精确位置信息，发起辅助信息请求消息，消息中可能包含指定的小区信息；
所述小区消息例如对小区ID的标识、实时传输协议(Real Time Transport Portocol，TRP)ID。
LMF发起辅助信息请求消息后，目标小区会返回其精确地理位置，随后LMF根据基站的精确位置信息，再结合相邻卫星参考站的差分数据，计算出该基站的差分数值。
步骤702、5G基站(NR gNB)反馈辅助信息上报消息给LMF，消息中至少包含自己所辖的小区(或LMF指定的小区)或TP的精确地位置信息；
步骤703、可选地，允许5G基站(NR gNB)独立通过其他NR PPa上行消息(NG-RAN向LMF发送)携带辅助信息给LMF，消息中至少包含自己所辖的小区(或LMF指定的小区)或TP的精确地位置信息。
其中，LMF根据基站的精确位置信息，再结合相邻卫星参考站的差分数据，计算出该基站的差分数值，然后将该数值作为UE的定位补偿数值传给UE。
其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
综上所述，在LMF实体侧，本申请实施例提供一种卫星差分辅助数据的传输方法，参见图8，包括：
S101、获取北斗卫星定位系统相关的辅助信息，并计算用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
S102、以广播的方式向5G基站发送所述用于UE定位计算的辅助信息。
可选地，所述用于UE定位计算的辅助信息中还包括全球导航卫星系统标识GNSS ID，和星基增强系统标识SBAS ID。
可选地，所述用于UE定位计算的辅助信息中还包括确认所述差分辅助数据是否加密的指示。
可选地，所述卫星差分辅助数据的传输方法还包括：
接收所述基站发送的用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息；
用于UE定位计算的所述差分辅助数据是根据所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息确定的；
其中，用于UE定位计算的所述差分辅助数据是指UE的服务基站、或服务小区、或服务基站传输点TP的差分辅助数据。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
所述基站的地理位置信息、或所述基站所辖的小区的地理位置信息、或所述基站的传输点TP的地理位置信息。
可选地，该方法还包括：获取星基增强系统发送的用于计算用于UE定位计算的所述差分辅助数据的辅助信息，该辅助信息包含但不限于所述星基增强系统的差分辅助数据。
可选地，所述卫星差分辅助数据的传输方法还包括：
周期性地更新所述差分辅助数据，并将更新后的差分辅助数据发送给基站。
相应地，在基站侧，本申请实施例提供一种卫星差分辅助数据的传输方法，参见图9，包括：
S201、接收用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
S202、根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，所述辅助信息中还包括确认所述差分辅助数据是否加密的指示。
可选地，所述卫星差分辅助数据的处理方法还包括：
向LMF发送用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
基站的地理位置信息、或基站所辖的小区的地理位置信息、或基站的传输点TP的地理位置信息。
可选地，所述卫星差分辅助数据的处理方法还包括：
接收周期性更新后的差分辅助数据；
向用户设备UE发送更新后的差分辅助数据。
在UE侧，本申请实施例提供一种定位方法，参见图10，包括：
S301、接收定位系统消息，其中，所述定位系统消息中包括用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
S302、根据所述定位系统消息，确定用户设备UE的位置信息。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，所述卫星差分辅助数据的处理方法还包括：
接收周期性更新后的用于UE定位计算的辅助信息；
根据所述更新后的用于UE定位计算的辅助信息，对所述UE的位置信息进行修正。
在LMF实体侧，本申请实施例提供一种卫星差分辅助数据的传输装置，参见图11，包括：
确定单元11，用于获取并计算北斗卫星定位系统相关的辅助信息，所述辅助信息包括但不限于差分辅助数据；
发送单元12，用于以广播的方式向5G基站发送所述北斗卫星定位系统相关的辅助信息。
相应地，在基站侧，本申请实施例提供一种卫星差分辅助数据的传输装置，参见图12，包括：
接收单元21，用于接收用于UE定位计算的辅助信息，所述辅助信息包括但不限于差分辅助数据；
更新单元22，用于根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
在UE侧，本申请实施例提供一种定位装置，参见图13，包括：
接收单元31，用于接收定位系统消息，其中，所述定位系统消息中包括用于UE定位计算的辅助信息，所述辅助信息包括但不限于差分辅助数据；
确定单元32，用于根据所述定位系统消息，确定用户设备UE的位置信息。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例提供了一种计算设备，该计算设备具体可以为桌面计算机、便携式计算机、智能手机、平板电脑、个人数字助理(Personal Digital Assistant， PDA)等。该计算设备可以包括中央处理器(Center Processing Unit，CPU)、存储器、输入/输出设备等，输入设备可以包括键盘、鼠标、触摸屏等，输出设备可以包括显示设备，如液晶显示器(Liquid Crystal Display，LCD)、阴极射线管(Cathode Ray Tube，CRT)等。
存储器可以包括只读存储器(ROM)和随机存取存储器(RAM)，并向处理器提供存储器中存储的程序指令和数据。在本申请实施例中，存储器可以用于存储本申请实施例提供的任一所述方法的程序。
处理器通过调用存储器存储的程序指令，处理器用于按照获得的程序指令执行本申请实施例提供的任一所述方法。
本申请实施例提供了一种计算机存储介质，用于储存为上述本申请实施例提供的装置所用的计算机程序指令，其包含用于执行上述本申请实施例提供的任一方法的程序。
在LMF侧，本申请实施例提供一种卫星差分辅助数据的传输装置，参见图14，包括：
处理器500，用于读取存储器520中的程序，执行下列过程：
获取并计算北斗卫星定位系统相关的辅助信息，所述辅助信息包括但不限于差分辅助数据；
通过收发机510以广播的方式向5G基站发送所述北斗卫星定位系统相关的辅助信息。
可选地，所述用于UE定位计算的辅助信息中还包括全球导航卫星系统标识(Identity of Global Navigation Satellite System，GNSS ID)，和空间增强系统标识(Identity of Space Based Augmentation System，SBAS ID)。
可选地，所述用于UE定位计算的辅助信息中还包括确认所述差分辅助数据是否加密的指示。
可选地，LMF实体接收所述基站发送的用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息；用于UE定位计算的所述差分辅助数据是根据所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息确定 的；
其中，用于UE定位计算的所述差分辅助数据是指UE的服务基站、或服务小区、或服务基站传输点TP的差分辅助数据。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
所述基站的地理位置信息、或所述基站所辖的小区的地理位置信息、或所述基站的传输点TP的地理位置信息。
可选地，处理器500还用于：
获取星基增强系统发送的用于计算用于UE定位计算的所述差分辅助数据的辅助信息，该辅助信息包含但不限于所述星基增强系统的差分辅助数据。
可选地，处理器500还用于：
周期性更新所述差分辅助数据，并周期性通过收发机510将更新后的差分辅助数据发送给基站。
收发机510，用于在处理器500的控制下接收和发送数据。
若是在基站侧，则处理器500，用于读取存储器520中的程序，执行下列过程：
通过收发机510接收用于UE定位计算的辅助信息，所述辅助信息包括但不限于差分辅助数据；
根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，所述辅助信息中还包括确认所述差分辅助数据是否加密的指示。
可选地，处理器500还用于：通过收发机510向LMF实体发送用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息。
可选地，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
基站的地理位置信息、或基站所辖的小区的地理位置信息、或基站的传 输点TP的地理位置信息。
可选地，处理器500还用于：
通过收发机510接收周期性更新后的差分辅助数据；
通过收发机510向用户设备UE发送更新后的差分辅助数据。
收发机510，用于在处理器500的控制下接收和发送数据。
所述计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
在用户设备侧，本申请实施例提供一种定位装置，参见图15，包括：
处理器600，用于读取存储器620中的程序，执行下列过程：
通过收发机610接收定位系统消息，其中，所述定位系统消息中包括用于UE定位计算的辅助信息，所述辅助信息包括但不限于差分辅助数据；
根据所述定位系统消息，确定用户设备UE的位置信息。
可选地，所述辅助信息中还包括GNSS ID和SBAS ID。
可选地，处理器600还用于：
通过收发机610接收周期性更新后的用于UE定位计算的辅助信息；
根据所述更新后的用于UE定位计算的辅助信息，对所述UE的位置信息进行修正。
本申请实施例提供的方法可以应用于终端设备，也可以应用于网络设备。
其中，终端设备也可称之为用户设备(User Equipment，简称为“UE”)、移动台(Mobile Station，简称为“MS”)、移动终端(Mobile Terminal)等，可选的，该终端可以具备经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信的能力，例如，终端可以是移动电话(或称为“蜂窝”电话)、或具有移动性质的计算机等，例如，终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
网络设备可以为基站(例如，接入点)，指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以是5G系统中的gNB等。本申请实施例中不做限定。
上述方法处理流程可以用软件程序实现，该软件程序可以存储在存储介质中，当存储的软件程序被调用时，执行上述方法步骤。
综上所述，本申请公开了一种卫星差分辅助数据的传输、定位方法及装置，用于保证在5G或其他可发展的技术网络基础上，能够更好地进行高精度的北斗卫星定位服务。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、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，本申请可采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质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、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。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (21)

  1. 一种卫星差分辅助数据的传输方法，其特征在于，该方法包括：
    定位管理功能LMF实体获取北斗卫星定位系统相关的辅助信息，并计算用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    以广播的方式向基站发送所述用于UE定位计算的辅助信息。
  2. 根据权利要求1所述的方法，其特征在于，所述用于UE定位计算的辅助信息中还包括全球导航卫星系统标识GNSS ID，和星基增强系统标识SBAS ID。
  3. 根据权利要求1所述的方法，其特征在于，所述用于UE定位计算的辅助信息中还包括确认所述差分辅助数据是否加密的指示。
  4. 根据权利要求1所述的方法，其特征在于，该方法还包括：接收所述基站发送的用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息；
    用于UE定位计算的所述差分辅助数据是根据所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息确定的；
    其中，用于UE定位计算的所述差分辅助数据是指UE的服务基站、或服务小区、或服务基站传输点TP的差分辅助数据。
  5. 根据权利要求4所述的方法，其特征在于，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
    所述基站的地理位置信息、或所述基站所辖的小区的地理位置信息、或所述基站的传输点TP的地理位置信息。
  6. 根据权利要求1所述的方法，其特征在于，该方法还包括：获取星基增强系统发送的用于计算用于UE定位计算的所述差分辅助数据的辅助信息，该辅助信息包含所述星基增强系统的差分辅助数据。
  7. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    LMF实体周期性地更新所述差分辅助数据，并将更新后的差分辅助数据发送给基站。
  8. 一种卫星差分辅助数据的传输方法，其特征在于，该方法包括：
    接收用于UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
  9. 根据权利要求8所述的方法，其特征在于，所述辅助信息中还包括GNSS ID和SBAS ID。
  10. 根据权利要求8所述的方法，其特征在于，所述辅助信息中还包括确认所述差分辅助数据是否加密的指示。
  11. 根据权利要求8所述的方法，其特征在于，该方法还包括：
    向LMF发送用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息；
    其中，用于UE定位计算的所述差分辅助数据是指UE的服务基站、或服务小区、或服务基站传输点TP的差分辅助数据。
  12. 根据权利要求10所述的方法，其特征在于，所述用于辅助确定用于UE定位计算的所述差分辅助数据的辅助信息包括：
    基站的地理位置信息、或基站所辖的小区的地理位置信息、或基站的传输点TP的地理位置信息。
  13. 根据权利要求7所述的方法，其特征在于，该方法还包括：
    接收周期性更新后的差分辅助数据；
    向用户设备UE发送更新后的差分辅助数据。
  14. 一种定位方法，其特征在于，该方法包括：
    接收定位系统消息，其中，所述定位系统消息中包括用于用户设备UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    根据所述定位系统消息，确定UE的位置信息。
  15. 根据权利要求14所述的方法，其特征在于，所述辅助信息中还包括全球导航卫星系统标识GNSS ID和星基增强系统标识SBAS ID。
  16. 根据权利要求14所述的方法，其特征在于，该方法还包括：
    接收周期性更新后的用于UE定位计算的辅助信息；
    根据所述更新后的用于UE定位计算的辅助信息，对所述UE的位置信息进行修正。
  17. 一种卫星差分辅助数据的传输装置，其特征在于，该装置包括：
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行权利要求1至16任意一项所述的方法。
  18. 一种卫星差分辅助数据的传输装置，其特征在于，该装置包括：
    确定单元，用于获取北斗卫星定位系统相关的辅助信息，并计算用于用户设备UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    发送单元，用于以广播的方式向基站发送所述用于UE定位计算的辅助信息。
  19. 一种卫星差分辅助数据的传输装置，其特征在于，该装置包括：
    接收单元，用于接收用于用户设备UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    更新单元，用于根据所述辅助信息广播或更新定位系统消息，其中，所述定位系统消息中携带所述差分辅助数据。
  20. 一种定位装置，其特征在于，该装置包括：
    接收单元，用于接收定位系统消息，其中，所述定位系统消息中包括用于用户设备UE定位计算的辅助信息，所述辅助信息包括差分辅助数据；
    确定单元，用于根据所述定位系统消息，确定UE的位置信息。
  21. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行权利要求1至16任一项所述的方法。
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US11480688B2 (en) 2022-10-25
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