WO2020253359A1 - 终端设备的定位方法及装置、存储介质、电子装置 - Google Patents
终端设备的定位方法及装置、存储介质、电子装置 Download PDFInfo
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- WO2020253359A1 WO2020253359A1 PCT/CN2020/086148 CN2020086148W WO2020253359A1 WO 2020253359 A1 WO2020253359 A1 WO 2020253359A1 CN 2020086148 W CN2020086148 W CN 2020086148W WO 2020253359 A1 WO2020253359 A1 WO 2020253359A1
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- terminal device
- angle
- base station
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- distance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
Definitions
- the present invention relates to the field of communications, and in particular to a method and device for positioning terminal equipment, a storage medium, and an electronic device.
- the 5G base station gNodeB, referred to as gNB
- RAN Radio Access Network
- UE User Equipment
- the accuracy requirement for positioning reaches the meter level.
- the goal is to use mobile phones instead of professional surveying and mapping terminals or vehicle-mounted terminals to achieve meter-level positioning accuracy.
- mobile communication itself has the characteristics of the entire network, and can complete positioning in a variety of scenarios under the premise of ensuring seamless coverage.
- the embodiments of the present invention provide a method and device for locating a terminal device, a storage medium, and an electronic device, so as to at least to a certain extent solve the problem of locating 5G terminal equipment in related technologies.
- a method for locating a terminal device including: determining a first angle of the terminal device relative to a base station from a beam accessed by the terminal device; The timing advance TA value at the time of the beam; determine the first distance of the terminal device relative to the base station based on the distance corresponding to the TA value; use the first angle and the first distance to locate the terminal device .
- a positioning apparatus for terminal equipment including: a first determining module, configured to determine a first angle of the terminal equipment relative to the base station from the beams accessed by the terminal equipment; The second determining module is used to determine the timing advance TA value when the terminal device accesses the beam; the third determining module is used to determine the terminal device relative to the base station based on the distance corresponding to the TA value The first distance; the positioning module is used to locate the terminal device using the first angle and the first distance.
- a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
- an electronic device including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute any of the above Steps in the method embodiment.
- FIG. 1 is a block diagram of the hardware structure of a mobile terminal of a method for positioning a terminal device according to an embodiment of the present invention
- Figure 2 is a flowchart of a method for positioning a terminal device according to an embodiment of the present invention
- FIG. 3 is a flowchart of angular position positioning in this embodiment
- Figure 4 is a flowchart of the angular position update in this embodiment
- Figure 5 is a schematic diagram of distance position positioning in this embodiment
- Fig. 6 is a schematic diagram of transmitting beams of a 5G communication system base station in a millimeter wave band according to an embodiment of the present invention
- Fig. 7 is a schematic diagram of beam acquisition-wide beam angle position determination in an embodiment of the present invention.
- Fig. 8 is a schematic diagram of determining the angular position of a narrow beam according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of determining the angular position of a refined beam according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of UE distance position positioning according to an embodiment of the present invention.
- FIG. 11 is a schematic diagram of positioning location update according to the narrow beam handover P2 process in an embodiment of the present invention.
- FIG. 12 is a schematic diagram of positioning location update according to the P2 process of wide-narrow beam switching in an embodiment of the present invention.
- FIG. 13 is a schematic diagram of location update according to the P1 process in an embodiment of the present invention.
- Fig. 14 is a structural block diagram of a positioning device of a terminal device according to an embodiment of the present invention.
- FIG. 1 is a hardware structural block diagram of a mobile terminal in a method for positioning a terminal device according to an embodiment of the present invention.
- the mobile terminal 10 may include one or more (only one is shown in FIG. 1) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. ) And a memory 104 for storing data.
- the above-mentioned mobile terminal may further include a transmission device 106 and an input/output device 108 for communication functions.
- a transmission device 106 may further include a transmission device 106 and an input/output device 108 for communication functions.
- the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the above-mentioned mobile terminal.
- the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG.
- the memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the terminal device positioning method in the embodiment of the present invention.
- the processor 102 runs the computer programs stored in the memory 104, thereby Perform various functional applications and data processing, that is, realize the above-mentioned methods.
- the memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
- the memory 104 may include a memory remotely provided with respect to the processor 102, and these remote memories may be connected to the mobile terminal 10 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the transmission device 106 is used to receive or send data via a network.
- the above-mentioned specific example of the network may include a wireless network provided by the communication provider of the mobile terminal 10.
- the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station to communicate with the Internet.
- the transmission device 106 may be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet in a wireless manner.
- RF Radio Frequency
- FIG. 2 is a flowchart of the method for locating a terminal device according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
- Step S202 Determine a first angle of the terminal device relative to the base station from the beam accessed by the terminal device;
- Step S204 Determine the timing advance TA value when the terminal device accesses the beam
- Step S206 Determine the first distance of the terminal device relative to the base station based on the distance corresponding to the TA value
- Step S208 Use the first angle and the first distance to locate the terminal device.
- the base station is used to determine the first angle of the terminal device relative to the base station from the beam accessed by the terminal device; and determine the timing advance TA value when the terminal device accesses the beam; determine the distance based on the TA value
- the first distance of the terminal device relative to the base station the base station uses the first angle and the first distance to locate the terminal device.
- the base station can determine the position of the terminal device from the beam accessed by the terminal device.
- the terminal equipment can be accurately located. Therefore, positioning of 5G terminal equipment can be provided to achieve the effect of accurately positioning the terminal equipment.
- the execution subject of the foregoing steps may be a base station or the like, but is not limited thereto.
- step S202 and step S204 can be interchanged, that is, step S204 may be executed first, and then S202 may be executed.
- this embodiment can be applied to a scenario where terminal devices are located in a 5G scenario.
- terminal devices include but are not limited to mobile phones, computers, vehicle-mounted devices, and so on.
- the positioning of the terminal device may be to obtain the position of the terminal device in space.
- the location of the space may be determined by the first distance and the first angle from the terminal device to the base station.
- a signal attenuation of up to several decibels dB may cause the communication system to fail to work normally.
- 5G beamforming can effectively combat path loss.
- 5G base stations can support large-scale antenna arrays, and the number of configurable antennas can even reach 1024.
- the 5G beamforming technology can effectively superimpose the signals by adjusting the phase of each antenna, and generate stronger signal gain to overcome the path loss, thus providing a strong guarantee for the transmission quality of 5G wireless signals.
- the beamforming technology focuses the wireless signal to form a directional beam. Generally, the narrower the beam, the greater the signal gain.
- 5G base stations After adopting beamforming technology, 5G base stations must use multiple beams with different directions to completely cover the cell.
- the base station uses beams of different directions to transmit wireless signals at a time. This process is called beam sweeping.
- the terminal equipment measures the wireless signals emitted by different beams (Beam measurement) and sends them to The base station reports relevant information (Beam Reporting); the base station determines the most recent transmitted beam (Beam determination) aimed at the terminal device according to the terminal device report.
- a hierarchical scanning strategy is adopted in 5G communication, that is, scanning from wide to narrow.
- the first stage is coarse scanning.
- the base station uses a small number of wide beams to cover the entire cell and scans the direction in which each wide beam is aligned.
- the second stage is fine scanning.
- the base station uses multiple narrow beams to scan the directions covered by the wide beam in the first stage one by one.
- Hierarchical scanning can be carried out at any time according to the needs of each terminal device, constantly switching the best beam, and providing wireless coverage for the terminal device.
- an important feature of uplink transmission is orthogonal multiple access in time and frequency for different terminal devices, that is, the uplink transmissions of different terminal devices from the same cell do not interfere with each other.
- the base station gNB requires signals from different terminal devices in the same subframe but different frequency domain resources to arrive at the gNB basically at the same time. As long as the gNB receives the uplink data sent by the terminal device within the range of the Cyclic Prefix (CP), it can decode the uplink data correctly. Therefore, uplink synchronization requires signals from different terminal devices in the same subframe to reach the gNB The time falls within the CP.
- CP Cyclic Prefix
- Timing Advance is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe (negative offset).
- the gNB can control the time when the uplink signals from different terminal devices reach the gNB by appropriately controlling the offset of each terminal device. For the terminal equipment far away from the gNB, due to the larger transmission delay, it is necessary to send the uplink data earlier than the terminal equipment closer to the gNB.
- the 5G communication system in the millimeter wave band uses a larger subcarrier spacing, more Fast Fourier Transformation (FFT) points, shorter time per Ts, shorter distance represented by the TA value, and better position accuracy high.
- the distance corresponding to the TA value is calculated with reference to 1Ts.
- the subcarrier spacing is 120kHz
- the FFT size is 4096
- the reporting range of the TA value is between 0 and 1282.
- the positioning distance of the 5G communication system in the millimeter wave band to the terminal device is 12.51 km.
- determining the first angle of the terminal device relative to the base station from the beam accessed by the terminal device includes:
- S3 Determine a first angle of the terminal device relative to the base station based on the first RSRP value.
- the first measurement request sent by the base station to the terminal device is for measuring the wide beam
- the terminal device parses the first measurement request to obtain the time and measurement of the first wide beam CSIRS.
- the terminal device measures the CSIRS according to the instructions of the first measurement request, and reports the first RSRP value.
- the method after receiving the first RSRP value sent by the terminal device, the method further includes:
- S3 Determine the first angle of the terminal device relative to the base station based on the second RSRP value.
- the base station after receiving the first RSRP value sent by the terminal device, the base station then sends to the terminal device to measure the second narrow beam adjacent to the first wide beam or the second refined beam.
- the terminal device parses the second measurement request to obtain the time of measuring the first narrow beam and the timing of the measurement report. For example, the terminal device selects the best two narrow beams and reports two RSRP values, and the base station determines the narrow beam corresponding to the largest RSRP value as the first narrow beam.
- determining the first angle of the terminal device relative to the base station based on the second RSRP value includes:
- S3 Determine the horizontal angle and the vertical angle as the first angle of the terminal device relative to the base station.
- the horizontal angle corresponding to 33 is 21° and the horizontal bandwidth is 13°; the vertical angle is 5° and the vertical bandwidth is 6°.
- the position of the terminal equipment determined by the base station is 14.5°-27.5° horizontally and 2°-8° vertically.
- the horizontal angle is 28°
- the horizontal bandwidth is 14°
- the vertical angle is 5°
- the vertical bandwidth is 6°.
- the position of the terminal equipment is 21° ⁇ 35° horizontally and 2° ⁇ 8° vertically.
- the spatial location of the terminal device can be accurately determined.
- the method before determining the first angle of the terminal device relative to the base station based on the first RSRP value, the method further includes:
- S2 Determine the wide beam corresponding to the wide beam identification ID as the first wide beam accessed by the terminal device.
- each terminal device scans the synchronization signal block (Synchronization Signal Block, referred to as SSB) issued by the base station in 8 directions 0-7 wide beams before powering on and accessing, according to its best reception Direction, determine the best transmission beam of the base station for the terminal device, and then send MSG1 on the physical random access channel (Physical Random Access Channel, referred to as PRACH) time-frequency resource corresponding to the beam.
- SSB Synchrom Signal Block
- PRACH Physical Random Access Channel
- MAC Medium Access Control
- RAC Random Access Control
- the base station MAC access processing module RAC reports the wide beam ID used in the UE access process to the BEAM module, and the BEAM module stores it as wBeamIdInUse, and reports this wide beam ID to the base station positioning processing module. For example, if the first wide beam ID is 5, the horizontal angle is 21° and the horizontal bandwidth is 13°; the vertical angle is 2° and the vertical bandwidth is 10°.
- the position of the terminal equipment is 14.5° ⁇ 27.5° horizontally and -3° ⁇ 7° vertically.
- the method further includes:
- S4 Determine the angle corresponding to the second narrow beam as the second angle of the terminal device relative to the base station.
- the base station periodically sends measurements using 5 narrow beams adjacent to the first wide beam or a refined beam measurement configuration.
- the terminal device performs narrow beam or refined beam measurement. This process may trigger narrow beam switching, and the positioning angle position of the UE will be updated.
- 33 and 48 are both narrow beams added to the first wide beam 5, and the table beams and angular positions are updated.
- the positioning angle position is updated from H: 14.5° ⁇ 27.5°V: 2° ⁇ 7° to H: 14.5° ⁇ 27.5°V: 7° ⁇ 13°.
- the method before periodically sending the fourth measurement request to the terminal device through the MAC, the method further includes:
- the base station after the terminal device accesses the base station, in the random access process, the base station periodically sends the configuration information of the narrow beam and the configuration information reported by the measurement to the terminal device through the third measurement request.
- the method further includes:
- S4 Determine the angle corresponding to the second wide beam as the third angle of the terminal device relative to the base station.
- the terminal device accesses the first wide beam, if the RSRP value of the adjacent wide beam is greater than the first RSRP value, the terminal device is switched to the adjacent wide beam.
- the method further includes:
- the terminal device accesses the first wide beam, if the RSRP value of the third wide beam that is not adjacent to the wide beam is greater than the first RSRP value, the terminal device is switched to the third wide beam.
- determining the timing advance TA value when the terminal device accesses the beam includes:
- S1 Determine the initial TA value of the terminal device from the received time of the random access preamble sent by the terminal device;
- the current TA value of the terminal device is determined in the SRS or DMRS;
- the TA value determined when the terminal device is turned on is the initial TA value.
- determining the distance corresponding to the TA value to obtain the first distance of the terminal device relative to the base station includes:
- S1 Determine the uplink transmission time sent by the terminal equipment on the beam by using the correspondence between TA and uplink transmission time;
- S2 Determine the distance from the uplink transmission time as the first distance.
- TA 10
- N_TA 10*16Ts
- locating the terminal device using the first angle and the first distance includes:
- the positioning of the terminal device is the positioning of the spatial position.
- the method further includes:
- S1 Send the longitude, latitude, and altitude of the terminal device to the core network to instruct the core network to determine the communication hotspot area from the longitude, latitude, and altitude of the terminal device.
- each terminal device when multiple terminal devices access in the 5G millimeter wave coverage area, each terminal device is turned on to locate and track while moving, and through the angle between the position of the terminal device and the position of the base station antenna, the terminal device The distance between the location and the base station antenna location is converted into longitude (Latitude), latitude (Longitude) and altitude (elevation), and reported to the core network through User Location Information.
- the core network reports the graphics display monitoring software to realize the monitoring of multiple UE radars. Graphic real-time position display, sort out precise areas of communication hotspots.
- the best beam reported by the terminal equipment to the base station during the beam management process and the TA value measured by the base station are used to achieve precise positioning of the 5G terminal equipment.
- FIG. 3 is a flowchart of angular position positioning in this embodiment. As shown in FIG. 3, it includes the following steps:
- each UE scans the signal strength of multiple beams issued by the base station.
- S302 The UE uses the beam with the best signal to perform random access.
- the base station obtains the used beam ID through the time-frequency resource used by the access used by the UE.
- S304 Obtain the angle of the UE location from the beam ID. Then the base station further issues a measurement request through the control channel of the Medium Access Control (MAC) layer, requesting the UE to perform signal strength on the narrower and finer beam near the UE location, that is, the beam with a narrower coverage angle. Measurement.
- MAC Medium Access Control
- the base station further accurately locates the angular position of the UE relative to the base station through the measurement report.
- Figure 4 is a flowchart of the angular position update in this embodiment. As shown in Figure 4, it includes the following steps:
- the base station After the UE accesses, the base station issues measurement-related configuration information through Radio Resource Control (Radio Resource Control, RRC for short). Periodic measurement requests are issued through the control channel of the Medium Access Control (MAC) layer. By measuring the signal strength of all the wide beams and the current UE's additional narrow and fine beams, the position and angle information tracking when the UE is moving is realized. First, the base station issues the measurement configuration through RRC.
- Radio Resource Control Radio Resource Control
- MAC Medium Access Control
- the base station issues a periodic measurement request for narrow beams near the location of the UE through the MAC.
- S403 The UE reports a measurement report.
- the base station sends a periodic measurement request for a wide beam near the location of the UE through the MAC.
- S406 The UE reports a measurement report.
- S408 The UE reports a measurement report.
- S409 If a new wide beam signal is better than the originally positioned wide beam, perform wide beam skipping. If there is no new beam signal better than the original positioning beam, or wide beam switching, after switching, wait for the next cycle measurement trigger.
- S402, S403, and S404 narrow beam switching the angular position tracking update is completed.
- Fig. 5 is a flowchart of distance positioning in this embodiment. As shown in Fig. 5, it includes the following steps:
- S501 In random access, in order to establish a radio resource control (Radio Resource Control, RRC for short) connection, the 5G UE sends a random access preamble.
- RRC Radio Resource Control
- Timing Advance The timing advance (Timing Advance, referred to as TA) by detecting the actually received preamble time.
- S504 Save the current TA value. After access, the base station measures the SRS/DMRS signal in the uplink transmission of the corresponding UE.
- S505 Determine the TA value of each UE.
- the TA value is continuously updated through the saved initial TA value and accumulation.
- S506 Continuously update the UE distance positioning information.
- the positioning position of the UE can be reported.
- This IE provides UE location information.
- this IE to add precise location information, which is the UE's longitude (Latitude), latitude (Longitude) and altitude (elevation).
- the distance information determined by the TA is (the distance between the UE position and the base station antenna position) Distance) to obtain the latitude, longitude and altitude of the current location of the UE.
- This IE is carried in the uplink message between the RAN and the core network, and the precise location information of the UE is reported to the core network.
- the core network uses the accurate location information of the UE reported by the RAN to implement more comprehensive location services.
- this embodiment can be applied to a scenario where a single UE is powered on for positioning, as follows:
- the beam sent by the base station is shown in Figure 6.
- the 53 beams are divided into: 8 wide beams, the horizontal direction is from -55° to 55°, the horizontal width is from 12° to 21°, the middle is 12°, and the sides are 21°.
- the vertical direction is 2°, and the vertical width is 10°.
- the horizontal width is the same as the corresponding wide beam, and the horizontal angle is the same as the wide beam.
- the vertical width is 6°.
- the narrow beam is a bit narrower in the vertical direction and the direction is more refined.
- the refined beam is located in the middle of the two wide beams, the horizontal width is from 12° to 18°, the middle is 12°, and the sides are 18°.
- the vertical direction is also divided into three groups, 0°, 5°, 10°, and the vertical width is 6°.
- the horizontal resolution angle is 12°-21°, and the vertical resolution angle within the coverage is 6°.
- each UE scans the SSB with 0-7 wide beams in 8 directions issued by the base station, and determines the best base station for itself according to its best receiving direction Transmit a beam, and then send MSG1 on the PRACH time-frequency resource corresponding to the beam.
- the subsequent access procedures (MSG1, 2, 3, 4) all use this wide beam.
- the base station MAC judges based on the received MSG1. Different wide-beam UEs use different time-frequency resources to send MSG1.
- the wide-beam ID used in the access process is obtained through the PRACH time-frequency resources used by the UE.
- the base station MAC access processing module RAC reports the wide beam ID used in the UE access process to the BEAM module, and the BEAM module itself stores it as wBeamIdInUse, and reports the wide beam ID to the base station positioning processing module.
- the wide beam ID is 5
- the horizontal angle is 21°
- the horizontal bandwidth is 13°
- the vertical angle is 2°, and the vertical bandwidth is 10°. That is, the position is 14.5° ⁇ 27.5° horizontally and -3° ⁇ 7° vertically. Determine the angular position as shown in Figure 7.
- the base station issues the measurement of the wide-beam ULDCI
- the UE parses the ULDCI to obtain the time of measuring the CSIRS and the timing of the measurement report, and the UE measures the wide-beam CSIRS according to the ULDCI instruction and reports the RSRP.
- This process is called P3 process).
- the RSRP value of the wide beam 5 is 80.
- the base station After receiving the valid P3 measurement report, the base station then issues the ULDCI for measuring the 5 narrow beams or refined beam measurements adjacent to the wide beam.
- the UE parses the ULDCI to obtain the time of measuring CSIRS and the timing of measurement report.
- the UE selects the best 2 narrow beams, report 2 RSRPs, the base station stores the narrow beam corresponding to the largest RSRP in the measurement report as nBeamldInUse[0], and records nBeamRsrpInUse[0].
- Another smaller reported value is also recorded in the table by position, and the table records [0:self], [1:up], [2:down], [3:left], [4:right] in sequence.
- the best narrow beam ID is 33, the horizontal angle is 21°, and the horizontal bandwidth is 13°; the vertical angle is 5° and the vertical bandwidth is 6°. That is, the position is 14.5° ⁇ 27.5° horizontally and 2° ⁇ 8° vertically.
- the base station MAC module reports the finally determined beam ID 33 to the base station positioning module.
- the base station positioning module determines the angular position of the UE as: that is, the position is 14.5°-27.5° horizontally and 2°-8° vertically, as shown in Figure 8.
- the best refined beam ID is 34, the horizontal angle is 28°, and the horizontal bandwidth is 14°; the vertical angle is 5° and the vertical bandwidth is 6°. That is, the position is 21° ⁇ 35° horizontally and 2° ⁇ 8° vertically.
- the base station MAC module reports the finally determined beam ID 34 to the base station positioning module.
- the base station positioning module determines the angular position of the UE as: that is, the position is 21°-35° horizontally and 2°-8° vertically. As shown in Figure 9.
- UE distance positioning information is determined:
- TA Timing Advance
- the base station After the UE accesses, in the random access process, the base station periodically sends the P-CSIRS configuration information and measurement report configuration information to the UE through the RRC Setup (MSG4) message.
- MSG4 RRC Setup
- the beam is switched, and the positioning angle position of the UE is updated.
- the base station periodically issues measurements using 5 narrow beams adjacent to the wide beam or a refined beam measurement configuration (P2 process).
- the UE executes the P2 process to perform narrow beam or refined beam measurement.
- This process (P2) may trigger beam switching and update the positioning angle position of the UE.
- P2 narrow beam switching causes angular position update.
- the UE receives the P2 measurement report, as shown in Table 6.
- the positioning angle position is updated from H:14.5° ⁇ 27.5°V: 2° ⁇ 7° to H: 14.5° ⁇ 27.5°V: 7° ⁇ 13°, as shown in Figure 11.
- P2 wide and narrow beam switching causes the angular position to be updated.
- the beam 35 does not use the wide beam 5, it will trigger the switch of the wide beam at this time, from the wide beam 5 to the wide beam 6, the table is updated, the wide beam 6P3 measurement is triggered, and the beam 6Rsrp value is updated, as shown in Table 9.
- the MAC module of the base station notifies the UE through MACCE. After the UE responds to the ACK, it replaces the InUse value above with the ToSwitch value below. UE angular positioning information is updated. H: 21° ⁇ 35°V: 2° ⁇ 8° is updated to H: 28° ⁇ 44°V: 2° ⁇ 11°, as shown in Figure 12.
- the positioning angle position of the UE does not need to be updated.
- the base station side periodically triggers (P3 process) measurement.
- P3 process P3 process
- nBeamIdInUse[0] is a refined beam
- P3 of two wide beams should be measured.
- 2 RSRPs will be received and 2 wide beams will be maintained.
- wBeamRsrpNgb>wBeamRsrpInUse+threshold handover is triggered. Switch from wBeamIdInUse to wBeamIdNgb, as shown in Table 10.
- the MAC module of the base station informs the UE to switch the wide beam through MACCE, and replaces the above InUse value with the ToSwitch value in the following table after receiving the ACK response from the UE. Because the refined beam of the UE's actual angular position positioning has not changed, the UE angular positioning information does not need to be updated. As shown in Table 11.
- the UE's positioning angle position is updated.
- the UE measures 8 wide beams according to the configuration information, and reports the two best wide beam RSRP and ID through PUCCH CSI. (P1 process).
- Table 12 shows the current wide beam and adjacent wide beam RSRP values.
- Table 13 shows the optimal beam RSRP value in the P1 process.
- the positioning angle position is updated from H: 21° ⁇ 35°V: 2° ⁇ 8 to H: -65.5° ⁇ -44.5°V: 2° ⁇ 7° as shown in Figure 13.
- the base station measures the SRS/DMRS signals in the uplink transmission of the corresponding UE to determine the TA value of the UE.
- the distance information of the UE positioning is continuously updated.
- UE radar real-time location display of multiple UEs in 5G millimeter wave coverage area; locate communication hotspot areas.
- each UE’s power-on positioning and moving position tracking are used, and the distance between the UE position and the base station antenna position is converted into longitude ( Latitude), latitude (Longitude) and elevation (elevation) are reported to the core network through User Location Information, and the core network reports graphics display monitoring software to realize the real-time graphical location display of multiple UE radars and locate precise areas of communication hotspots.
- the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation.
- the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the method described in each embodiment of the present invention.
- a positioning device for terminal equipment is also provided.
- the device is used to implement the above-mentioned embodiments and some embodiments, and those that have been described will not be repeated.
- the term "module" can implement a combination of software and/or hardware with predetermined functions.
- the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.
- FIG. 14 is a structural block diagram of a positioning apparatus for terminal equipment according to an embodiment of the present invention. As shown in FIG. 14, the apparatus includes: a first determining module 1402, a second determining module 1404, a third determining module 1406, and a positioning module 1408, The device is described below:
- the first determining module 1402 is configured to determine a first angle of the terminal device relative to the base station from the beam accessed by the terminal device;
- the second determining module 1404 is configured to determine the timing advance TA value when the terminal device accesses the beam;
- the third determining module 1406 is configured to determine the first distance of the terminal device relative to the base station based on the distance corresponding to the TA value;
- the positioning module 1408 is configured to use the first angle and the first distance to locate the terminal device.
- the base station is used to determine the first angle of the terminal device relative to the base station from the beam accessed by the terminal device; and determine the timing advance TA value when the terminal device accesses the beam; determine the distance based on the TA value
- the first distance of the terminal device relative to the base station the base station uses the first angle and the first distance to locate the terminal device.
- the base station can determine the position of the terminal device from the beam accessed by the terminal device.
- the terminal equipment can be accurately located. Therefore, positioning of 5G terminal equipment can be provided to achieve the effect of accurately positioning the terminal equipment.
- the execution subject of the foregoing steps may be a base station or the like, but is not limited thereto.
- this embodiment can be applied to a scenario where terminal devices are located in a 5G scenario.
- terminal devices include but are not limited to mobile phones, computers, vehicle-mounted devices, and so on.
- the positioning of the terminal device may be to obtain the position of the terminal device in space.
- the location of the space may be determined by the first distance and the first angle from the terminal device to the base station.
- a signal attenuation of up to several decibels dB may cause the communication system to fail to work normally.
- 5G beamforming can effectively combat path loss.
- 5G base stations can support large-scale antenna arrays, and the number of configurable antennas can even reach 1024.
- the 5G beamforming technology can effectively superimpose the signals by adjusting the phase of each antenna, and generate stronger signal gain to overcome the path loss, thus providing a strong guarantee for the transmission quality of 5G wireless signals.
- the beamforming technology focuses the wireless signal to form a directional beam. Generally, the narrower the beam, the greater the signal gain.
- 5G base stations After adopting beamforming technology, 5G base stations must use multiple beams with different directions to completely cover the cell.
- the base station uses beams of different directions to transmit wireless signals at a time. This process is called beam sweeping.
- the terminal equipment measures the wireless signals emitted by different beams (Beam measurement) and sends them to The base station reports relevant information (Beam Reporting); the base station determines the most recent transmitted beam (Beam determination) aimed at the terminal device according to the terminal device report.
- a hierarchical scanning strategy is adopted in 5G communication, that is, scanning from wide to narrow.
- the first stage is coarse scanning.
- the base station uses a small number of wide beams to cover the entire cell and scans the direction in which each wide beam is aligned.
- the second stage is fine scanning.
- the base station uses multiple narrow beams to scan the directions covered by the wide beam in the first stage one by one.
- Hierarchical scanning can be carried out at any time according to the needs of each terminal device, constantly switching the best beam, and providing wireless coverage for the terminal device.
- an important feature of uplink transmission is orthogonal multiple access in time and frequency for different terminal devices, that is, the uplink transmissions of different terminal devices from the same cell do not interfere with each other.
- the base station gNB requires signals from different terminal devices in the same subframe but different frequency domain resources to arrive at the gNB basically at the same time. As long as the gNB receives the uplink data sent by the terminal device within the range of the Cyclic Prefix (CP), it can decode the uplink data correctly. Therefore, uplink synchronization requires signals from different terminal devices in the same subframe to reach the gNB The time falls within the CP.
- CP Cyclic Prefix
- Timing Advance is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe (negative offset).
- the gNB can control the time when the uplink signals from different terminal devices reach the gNB by appropriately controlling the offset of each terminal device. For the terminal equipment far away from the gNB, due to the larger transmission delay, it is necessary to send the uplink data earlier than the terminal equipment closer to the gNB.
- the 5G communication system in the millimeter wave band uses a larger subcarrier spacing, more Fast Fourier Transformation (FFT) points, shorter time per Ts, shorter distance represented by the TA value, and better position accuracy high.
- the distance corresponding to the TA value is calculated with reference to 1Ts.
- the subcarrier spacing is 120kHz
- the FFT size is 4096
- the reporting range of the TA value is between 0 and 1282.
- the positioning distance of the 5G communication system in the millimeter wave band to the terminal device is 12.51 km.
- the first angle of the terminal device relative to the base station is determined from the beam accessed by the terminal device in the following manner:
- S3 Determine a first angle of the terminal device relative to the base station based on the first RSRP value.
- the first measurement request sent by the base station to the terminal device is for measuring the wide beam
- the terminal device parses the first measurement request to obtain the time and measurement of the first wide beam CSIRS.
- the terminal device measures the CSIRS according to the instructions of the first measurement request, and reports the first RSRP value.
- the foregoing apparatus after receiving the first RSRP value sent by the terminal device, is further configured to:
- S3 Determine the first angle of the terminal device relative to the base station based on the second RSRP value.
- the base station after receiving the first RSRP value sent by the terminal device, the base station then sends to the terminal device to measure the second narrow beam adjacent to the first wide beam or the second refined beam.
- the terminal device parses the second measurement request to obtain the time of measuring the first narrow beam and the timing of measurement report. For example, the terminal device selects the best two narrow beams and reports two RSRP values, and the base station determines the narrow beam corresponding to the largest RSRP value as the first narrow beam.
- the first angle of the terminal device relative to the base station is determined based on the second RSRP value in the following manner:
- S3 Determine the horizontal angle and the vertical angle as the first angle of the terminal device relative to the base station.
- the horizontal angle corresponding to 33 is 21° and the horizontal bandwidth is 13°; the vertical angle is 5° and the vertical bandwidth is 6°.
- the position of the terminal equipment determined by the base station is 14.5°-27.5° horizontally and 2°-8° vertically.
- the horizontal angle is 28°
- the horizontal bandwidth is 14°
- the vertical angle is 5°
- the vertical bandwidth is 6°.
- the position of the terminal equipment is 21° ⁇ 35° horizontally and 2° ⁇ 8° vertically.
- the spatial location of the terminal device can be accurately determined.
- the foregoing apparatus is further configured to:
- S2 Determine the wide beam corresponding to the wide beam identification ID as the first wide beam accessed by the terminal device.
- each terminal device scans 8 directions 0-7SSB issued by the base station before powering on and accessing, and determines the best transmitting beam of the base station for the terminal device according to its best receiving direction , And then send MSG1 on the physical random access channel (Physical Random Access Channel, PRACH for short) time-frequency resource corresponding to the beam.
- the subsequent access procedures (MSG1, 2, 3, 4) all use this wide beam.
- the media access control (Multiple Access Channel, referred to as MAC) and the random access control (Random Access Control, referred to as RAC) of the access processing module in the base station make judgments based on the received MSG1, and different wide beam terminal devices send
- the time-frequency resources used by MSG1 are different, and the wide beam ID used in the access process is obtained through the PRACH time-frequency resources used by the terminal equipment.
- the base station MAC access processing module RAC reports the wide beam ID used in the UE access process to the BEAM module, and the BEAM module itself stores it as wBeamIdInUse, and reports the wide beam ID to the base station positioning processing module.
- the horizontal angle is 21° and the horizontal bandwidth is 13°; the vertical angle is 2° and the vertical bandwidth is 10°.
- the position of the terminal equipment is 14.5° ⁇ 27.5° horizontally and -3° ⁇ 7° vertically.
- the foregoing apparatus is further used to:
- S4 Determine the angle corresponding to the second narrow beam as the second angle of the terminal device relative to the base station.
- the base station periodically sends measurements using 5 narrow beams adjacent to the first wide beam or a refined beam measurement configuration.
- the terminal device performs narrow beam or refined beam measurement. This process may trigger narrow beam switching, and the positioning angle position of the UE will be updated.
- 33 and 48 are both narrow beams added to the first wide beam 5, and the table beams and angular positions are updated.
- the positioning angle position is updated from H: 14.5° ⁇ 27.5°V: 2° ⁇ 7° to H: 14.5° ⁇ 27.5°V: 7° ⁇ 13°.
- the foregoing apparatus before periodically sending the fourth measurement request to the terminal device through the MAC, is further configured to:
- the base station after the terminal device accesses the base station, in the random access process, the base station periodically sends the configuration information of the narrow beam and the configuration information reported by the measurement to the terminal device through the third measurement request.
- the foregoing apparatus is further used to:
- S4 Determine the angle corresponding to the second wide beam as the third angle of the terminal device relative to the base station.
- the terminal device accesses the first wide beam, if the RSRP value of the adjacent wide beam is greater than the first RSRP value, the terminal device is switched to the adjacent wide beam.
- the above apparatus is further used to:
- the terminal device accesses the first wide beam, if the RSRP value of the third wide beam that is not adjacent to the wide beam is greater than the first RSRP value, the terminal device is switched to the third wide beam.
- the timing advance TA value when the terminal device accesses the beam is determined in the following manner:
- S1 Determine the initial TA value of the terminal device from the received time of the random access preamble sent by the terminal device;
- the current TA value of the terminal device is determined in the SRS or DMRS;
- the TA value determined when the terminal device is turned on is the initial TA value.
- the distance corresponding to the TA value is determined in the following manner to obtain the first distance of the terminal device relative to the base station:
- S1 Determine the uplink transmission time sent by the terminal equipment on the beam by using the correspondence between TA and uplink transmission time;
- S2 Determine the distance from the uplink transmission time as the first distance.
- TA 10
- N_TA 10*16Ts
- the first angle and the first distance are used to locate the terminal device in the following manner:
- S1 Determine the coordinate position of the terminal device by using the first angle and the first distance, where the coordinate position includes the longitude, latitude, and altitude of the terminal device after the conversion of the passing angle position and the distance position of the terminal device;
- the positioning of the terminal device is the positioning of the spatial position.
- the foregoing apparatus is further used to:
- S1 Send the longitude, latitude, and altitude of the terminal device to the core network to instruct the core network to determine the communication hotspot area from the longitude, latitude, and altitude of the terminal device.
- each terminal device when multiple terminal devices access in the 5G millimeter wave coverage area, each terminal device is turned on to locate and track while moving, and through the angle between the position of the terminal device and the position of the base station antenna, the terminal device The distance between the location and the base station antenna location is converted into longitude (Latitude), latitude (Longitude) and altitude (elevation), and reported to the core network through User Location Information.
- the core network reports the graphics display monitoring software to realize the monitoring of multiple UE radars. Graphic real-time position display, sort out precise areas of communication hotspots.
- the best beam reported by the terminal equipment to the base station during the beam management process and the TA value measured by the base station are used to achieve precise positioning of the 5G terminal equipment.
- each of the above modules can be implemented by software or hardware.
- it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any combination The forms are located in different processors.
- An embodiment of the present invention also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
- the above-mentioned storage medium may be configured to store a computer program for executing the above steps.
- the aforementioned storage medium may include, but is not limited to: U disk, Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (Random Access Memory, for short)
- U disk Read-Only Memory
- ROM Read-Only Memory
- Random Access Memory Random Access Memory
- Various media that can store computer programs such as RAM
- mobile hard disks magnetic disks, or optical disks.
- An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.
- the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
- the foregoing processor may be configured to execute the foregoing steps through a computer program.
- the base station determines the first angle of the terminal device relative to the base station from the beam accessed by the terminal device; and determines the timing advance TA value when the terminal device accesses the beam; and determines the distance based on the TA value
- the first distance of the terminal device relative to the base station uses the first angle and the first distance to locate the terminal device.
- the base station can determine the position of the terminal device from the beam accessed by the terminal device.
- the terminal equipment can be accurately located. Therefore, positioning of 5G terminal equipment can be provided to achieve the effect of accurately positioning the terminal equipment.
- modules or steps of the present invention can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed on a network composed of multiple computing devices.
- they can be implemented by program codes executable by a computing device, so that they can be stored in a storage device for execution by the computing device, and in some cases, they can be different from this
- the steps shown or described are executed in the order in which they are shown, or they are respectively fabricated into individual integrated circuit modules, or multiple modules or steps of them are fabricated into a single integrated circuit module for implementation. In this way, the present invention is not limited to any specific combination of hardware and software.
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Abstract
Description
IE/Group Name | Presence |
CHOICE User Location Information | M |
>E-UTRA user location information | |
>>E-UTRA CGI | M |
>>TAI | M |
>>Age of Location | O |
>NR user location information | |
>>NR CGI | M |
>>TAI | M |
>>Age of Location | O |
>N3IWF user location information | |
>>IP Address | M |
>>Port Number | O |
>Precise user location information | |
>>Latitude | O |
>>Longitude | O |
>>Elevation | O |
index | wBeamld | wBeamRsrp | Count |
0 | 0 | 82 | 0 |
1 | 2 | 80 | 1 |
Claims (16)
- 一种终端设备的定位方法,包括:从终端设备接入的波束中确定所述终端设备相对于基站的第一角度;确定出所述终端设备接入所述波束时的定时提前量TA值;基于所述TA值对应的距离确定所述终端设备相对于所述基站的第一距离;利用所述第一角度和所述第一距离定位所述终端设备。
- 根据权利要求1所述的方法,其中,从所述终端设备接入的波束中确定所述终端设备相对于所述基站的所述第一角度包括:向所述终端设备发送第一测量请求,其中,所述第一测量请求用于请求获取所述终端设备所接入的第一宽波束的第一参考信号接收功率RSRP值;接收所述终端设备发送的所述第一RSRP值;基于所述第一RSRP值确定出所述终端设备相对于所述基站的所述第一角度。
- 根据权利要求2所述的方法,在接收所述终端设备发送的所述第一RSRP值之后,还包括:向所述终端设备发送第二测量请求,其中,所述第二测量请求用于请求所述终端设备所接入的第一窄波束的第二RSRP值,其中,所述第一窄波束邻近所述第一宽波束;接收所述终端设备发送的所述第二RSRP值;基于所述第二RSRP值确定出所述终端设备相对于所述基站的所述第一角度。
- 根据权利要求3所述的方法,其中,基于所述第二RSRP值确定出所述终端设备相对于所述基站的所述第一角度包括:从所述第二RSRP值中确定出所述第一窄波束的ID;利用所述第一窄波束的ID确定出所述终端设备相对于所述基站的水平角度以及所述终端设备相对于所述基站的垂直角度;将所述水平角度和所述垂直角度确定为所述终端设备相对于所述基站的所述第一角度。
- 根据权利要求1所述的方法,在基于所述第一RSRP值确定出所述终端设备相对于所述基站的所述第一角度之前,还包括:从所述终端设备发送的信令消息MSG中确定宽波束标识ID;将所述宽波束标识ID所对应的宽波束确定为所述终端设备接入的第一宽波束。
- 根据权利要求1所述的方法,从所述终端设备接入的波束中确定所述终端设备相对于所述基站的第一角度之后,还包括:通过媒体接入控制MAC周期性的向所述终端设备发送第三测量请求,其中,所述第三测量请求用于请求测量与所述终端设备所接入的窄波束邻近的第二窄波束的信号;接收所述终端设备发送的第一测量报告,其中,所述第一测量报告中包括所述第二窄波束的信号;在所述第二窄波束的信号大于所述终端设备接入的窄波束的信号的情况下,指示所述终端设备切换至所述第二窄波束进行接入;将所述第二窄波束所对应的角度确定为所述终端设备相对于所述基站的第二角度。
- 根据权利要求6所述的方法,在通过所述MAC周期性的向所述终端设备发送所述第三测量请求之前,还包括:通过无线资源控制RRC向所述终端设备发送第四测量请求,其中,所述第四测量请求用于请求测量 所述终端设备的接入配置,其中,所述接入配置用于触发向所述终端设备发送所述第四测量请求。
- 根据权利要求1所述的方法,从所述终端设备接入的波束中确定所述终端设备相对于所述基站的第一角度之后,还包括:通过MAC周期性的向所述终端设备发送第五测量请求,其中,所述第五测量请求用于请求测量与所述终端设备所接入的宽波束邻近的第二宽波束的信号;接收所述终端设备发送的第二测量报告,其中,所述第二测量报告中包括所述第二宽波束的信号;在所述第二宽波束的信号大于所述终端设备接入的宽波束的信号的情况下,指示所述终端设备切换至所述第二宽波束进行接入;将所述第二宽波束所对应的角度确定为所述终端设备相对于所述基站的第三角度。
- 根据权利要求8所述的方法,将所述第二宽波束所对应的角度确定为所述终端设备相对于所述基站的所述第三角度之后,还包括:通过所述MAC周期性的向所述终端设备发送第六测量请求,其中,所述第六测量请求用于请求测量与所述终端设备对应的所有宽波束的信号;在所述所有宽波束的信号中存在大于所述第二宽波束的信号的情况下,指示所述终端设备跳切至信号大于所述第二宽波束的信号的第三宽波束中;将所述第三宽波束所对应的角度确定为所述终端设备相对于所述基站的第四角度;继续测量所述第三宽波束中所述终端设备所接入的窄波束。
- 根据权利要求1所述的方法,其中,确定出所述终端设备接入所述波束时的定时提前量TA值,包括:从接收的所述终端设备发送的随机接入前导码的时间中确定出所述终端设备的初始TA值;测量所述终端设备上行传输中的信道探测参考信号SRS或者解调参考信号DMRS;从所述SRS或者DMRS中确定出所述终端设备的当前TA值;将所述初始TA值和所述当前TA值进行累加,得到所述TA值。
- 根据权利要求1所述的方法,其中,确定与所述TA值对应的距离,得到所述终端设备相对于所述基站的第一距离包括:利用所述TA值与上行发送时间的对应关系确定出所述终端设备在所述波束上发送的上行发送时间;将与所述上行发送时间所表示的距离确定为所述第一距离。
- 根据权利要求1所述的方法,其中,利用所述第一角度和所述第一距离定位所述终端设备包括:利用所述第一角度和所述第一距离确定所述终端设备的坐标位置,其中,所述坐标位置包括所述终端设备所在通过角度位置与距离位置转换后的经度、纬度以及海拔高度;利用所述坐标位置定位所述终端设备。
- 根据权利要求12所述的方法,其中,在利用所述第一角度和所述第一距离中确定所述终端设备的坐标位置之后,将所述终端设备所在的经度、纬度以及海拔高度发送给核心网,以指示所述核心网从所述终端设备所在的经度、纬度以及海拔高度中确定出通讯热点区域。
- 一种终端设备的定位装置,其特征在于,包括:第一确定模块,用于从终端设备接入的波束中确定所述终端设备相对于基站的第一角度;第二确定模块,用于确定出所述终端设备接入所述波束时的定时提前量TA值;第三确定模块,用于基于所述TA值对应的距离确定所述终端设备相对于所述基站的第一距离;定位模块,用于利用所述第一角度和所述第一距离定位所述终端设备。
- 一种存储介质,存储有计算机程序,其中,所述计算机程序被设置为运行时执行所述权利要求1至13任一项中所述的方法。
- 一种电子装置,包括存储器和处理器,其中,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行所述权利要求1至13任一项中所述的方法。
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