WO2020207096A1 - Procédé pour effectuer un positionnement dans des scénarios 5g, plate-forme de positionnement et terminal utilisateur - Google Patents

Procédé pour effectuer un positionnement dans des scénarios 5g, plate-forme de positionnement et terminal utilisateur Download PDF

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Publication number
WO2020207096A1
WO2020207096A1 PCT/CN2020/072583 CN2020072583W WO2020207096A1 WO 2020207096 A1 WO2020207096 A1 WO 2020207096A1 CN 2020072583 W CN2020072583 W CN 2020072583W WO 2020207096 A1 WO2020207096 A1 WO 2020207096A1
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information
ssb
positioning
user terminal
csi
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PCT/CN2020/072583
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English (en)
Chinese (zh)
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胡小峰
刘沁心
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华为技术有限公司
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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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • 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

Definitions

  • This application relates to the field of communications, and in particular to a positioning method, positioning platform, and user terminal in a 5G scenario.
  • UE smart wireless user equipment
  • UE smart phones and tablet computers
  • the large-scale popularization of the aforementioned UE has given birth to various location services based on wireless positioning.
  • wireless positioning Such as: shopping mall indoor navigation, accurate location advertising push, real-time location monitoring of the elderly and children, big data analysis of digital footprint and wireless location services related to network optimization.
  • most indoor and outdoor positioning methods are based on wireless access points, such as wireless 2G, 3G, 4G, 5G, WiFi, WLAN and other access points to achieve positioning.
  • a commonly used positioning method is to use the cell location of the wireless network to perform positioning, that is, enhanced cell ID (enhanced cell-ID, ECID) positioning.
  • the basic principle is: according to the serving cell ID (ie cell- ID) and the orientation of the serving cell direction angle to determine the location of the UE.
  • Each cell has a unique cell ID.
  • the UE When a UE is registered in a certain cell, the UE will be associated with the cell ID in the system database, as long as the center position of the cell and the cell ID are known.
  • the coverage radius and the orientation of the cell direction angle will know the approximate range of the UE, as shown in Figure 1, based on the ID combination project of the serving cell in the measurement report (MR) reported by the UE (taking a mobile phone as an example)
  • the location of the serving cell and the direction of the serving cell in the parameters can determine the location range of the mobile phone.
  • the positioning accuracy of this method is poor, and it is heavily dependent on the coverage area of the serving cell.
  • the positioning accuracy is hundreds of meters, and it is difficult to obtain ideal positioning accuracy in areas with less cell distribution (such as suburbs and rural areas).
  • the received signal strength indicator (RSSI) can be quickly obtained through the MR of the UE
  • RSSI received signal strength indicator
  • the method is called fingerprint positioning (also called wireless signal feature matching), and the specific method is to record in advance the cell ID and received signal strength (received signal strength, RSS) (also called fingerprint).
  • RSS received signal strength
  • Information the location of the UE is determined by comparing the database with a huge number of cell IDs and RSS (also called fingerprint database) with the cell ID and RSSI where the UE is located. For example, the location of the UE in Figure 2 (taking a mobile phone as an example) is covered by the wireless networks of Cell 1, Cell 2, and Cell 3.
  • the RSS corresponding to the location of these three cells are RSS1, RSS2, and RSS3.
  • Fingerprint positioning is used in networks 2G, 3G, 4G, and WiFi.
  • the fingerprint database in 2G, 3G, 4G, and WiFi is composed of cell ID and cell RSS, and the fingerprint is relatively single.
  • the positioning accuracy of 2G, 3G, 4G, and WiFi fingerprint libraries is more severely affected by the number of cells in MR. The smaller the number of cells, the worse the positioning accuracy.
  • the above positioning methods are all based on wireless 2G, 3G, 4G, 5G, WiFi, WLAN and other access points to achieve positioning, and the positioning accuracy is affected by many factors, resulting in low positioning accuracy.
  • the first aspect of the embodiments of the present application provides a positioning method in a 5G scenario, which specifically includes:
  • the positioning platform obtains the target positioning information sent by the UE corresponding to the positioning platform.
  • the target positioning information is extracted by the UE according to the obtained MR.
  • the MR is obtained by the UE through a preset method.
  • the preset method may be a preset method. It is assumed that the MR is obtained periodically by a period, or the MR can be obtained by an event trigger, and the details are not limited here.
  • the target positioning information extracted from the MR includes the serving cell ID of the serving cell where the UE is located, the first synchronization signal block (SS/PBCH block, SSB) information corresponding to the serving cell and the channel state information reference signal (channel state information).
  • SS/PBCH block, SSB first synchronization signal block
  • the first SSB information includes N first synchronization signal block indexes (SS/PBCH block-index, SSB-ID) and N first synchronization signal block reference signals Received power (SS/PBCH block-reference signal received power, SSB-RSRP), N is a positive integer greater than or equal to 1, the CSI-RS information includes P channel state information reference signal indexes (channel state information-reference signal-index , CSI-RS ID) and P channel state information reference signal received power (channel state information-reference signal received power, CSI-RS RSRP), P is a positive integer greater than or equal to 1, and P can be the same as N or N is different, which is not specifically limited here; afterwards, the positioning platform further obtains configuration information, which includes the first configuration information of the serving cell; finally, the positioning platform determines where the UE is located according to the above-mentioned target positioning information and configuration information The target location.
  • N a positive integer greater than or equal to 1
  • the CSI-RS information includes P channel state information reference signal index
  • the positioning platform is based on the configuration information, the serving cell ID in the target positioning information, and the corresponding first SSB information (that is, N first SSB-IDs and N first SSB-RSRPs) or target-based
  • the serving cell ID in the positioning information and the corresponding CSI-RS information (that is, P CSI-RS ID and P CSI-RS RSRP) are used to determine the target location of the UE, which solves the problem of single station in the 5G scenario (that is, there is only one In the case of 5G base stations) positioning problems.
  • the target positioning information may also include the neighboring cell ID of the neighboring cell where the UE is located and the second SSB information corresponding to the neighboring cell ,
  • the second SSB information includes M second SSB-IDs and M second SSB-RSRPs, M is a positive integer greater than or equal to 1, M can be the same as N or different from N, which is not specifically limited here ;
  • the configuration information also includes the second configuration information of the neighboring cell.
  • the configuration information and target positioning information include not only the information of the serving cell corresponding to the UE, but also the information of the neighboring cell corresponding to the UE. Position positioning to improve positioning accuracy.
  • the positioning platform can determine the target location of the UE according to the target positioning information and the configuration information.
  • the positioning platform determines the fingerprint library according to the configuration information.
  • the fingerprint library is a collection of fingerprint information of each location point in the wireless coverage area of the serving cell and/or neighboring cell where the UE is located and the known location information corresponding to the location point. It is noted that the fingerprints described in the embodiments of the present application refer to radio fingerprints, which are used to identify radio characteristics (such as the strength of a radio signal), etc., and the fingerprint information of each location point is different.
  • the known location information can be real-time global positioning system (GPS) information, or it can be the location information measured in advance and stored in the fingerprint database. The specific location information is not limited here.
  • the known location information can be a plane
  • the position information of may also be three-dimensional position information, which is not specifically limited here.
  • a fingerprint information is the location information of a location point.
  • the fingerprint database is built on the positioning platform in advance. After the positioning platform obtains the target positioning information, it will compare the target positioning information with the fingerprint information in the fingerprint database one by one until the corresponding target fingerprint information is matched. The target fingerprint information determines the corresponding target known location information, and further determines the target location where the UE is located according to the target known location information.
  • the minimum granularity of fingerprint information and target location information is the first SSB information of the serving cell (that is, including N first SSB-IDs and corresponding N first SSB-PSRPs) and/or CSI -RS information (that is, including P CSI-RS IDs and corresponding P CSI-RS RSRPs), which is the same as 2G, 3G, 4G, WiFi, etc., which simply use cell ID and RSS to construct fingerprints, with smaller granularity and obtainable
  • the fingerprint library has higher positioning accuracy and can solve the single-site (that is, only one NR) positioning in the 5G scenario.
  • the fingerprint database can also be combined with the second SSB information of neighboring cells (that is, including M second SSB-IDs and the corresponding M The second SSB-PSRP) are located together to further improve the positioning accuracy.
  • the first SSB information may also include N first synchronization signal block reference signal received quality (SS/PBCH block-reference signal received quality, SSB-RSRQ) and/or N first synchronization signal block signal to interference and noise ratio (SS/PBCH) PBCH block-signal to interference plus noise ratio, SSB-SINR);
  • SS/PBCH block-reference signal received quality SSB-RSRQ
  • SS/PBCH first synchronization signal block signal to interference and noise ratio
  • the second SSB information may also include M second SSB-RSRQs and/or M second SSB-SINRs;
  • the CSI-RS information may also include P channel state information reference signal to interference plus noise ratio (channel state information-reference signal to interference plus noise ratio, CSI-RS SINR).
  • P channel state information reference signal to interference plus noise ratio channel state information-reference signal to interference plus noise ratio
  • the first SSB information, the second SSB information, and the CSI-RS information contain more content.
  • the granularity of fingerprint information in the fingerprint database is also smaller, and the positioning accuracy is also reduced. higher.
  • the positioning platform determining the target position of the UE according to the target positioning information and configuration information may include: the positioning platform determines according to the configuration information Beam information.
  • the beam information includes the number of beams and the angle at which each beam points.
  • Each beam corresponds to a Beam-ID.
  • the angle at which each beam points can be obtained through the antenna pattern.
  • -IDs can be uniquely mapped to an SSB-ID or uniquely mapped to a CSI-RS ID. There can be multiple unique mapping methods, which are not specifically limited here.
  • the above beam information is the first beam information of the downlink beam of the serving cell where the UE is located, and the above angle information is also the first angle information of the UE relative to the serving cell.
  • the positioning platform determines the angle information of the UE according to the beam information and the acquired target positioning information; finally, the positioning platform determines the target where the UE is located according to the angle information and the distance information between the UE and the corresponding serving cell obtained in advance position.
  • the distance information between the UE and the corresponding serving cell obtained in advance by the positioning platform may be measured in a variety of ways, which is not specifically limited here. For example, it can be obtained based on time advance (TA) and/or propagation delay (PA).
  • TA time advance
  • PA propagation delay
  • the positioning platform first uses the downlink beam information of the serving cell and target positioning information to determine the angle information of the UE relative to the serving cell, and then calculates the target position of the UE based on the angle information.
  • this method simply uses the azimuth of the site for positioning, and the positioning accuracy is higher.
  • the positioning platform determines the angle information of the UE according to the beam information and the target positioning information including: When the target positioning information is the serving cell ID and the first SSB information, the positioning platform can uniquely map each first Beam-ID to a corresponding first SSB-ID according to the first beam information and the first SSB information, and at the same time Correspondingly modify the first SSB-RSRP to the first Beam-RSRP; or, when the target positioning information is the serving cell ID and CSI-RS information, then the positioning platform can change each first beam information and CSI-RS information One Beam-ID is uniquely mapped to a corresponding CSI-RS ID, and the first CSI-RS RSRP is correspondingly modified to the first Beam-RSRP; then, the positioning platform uses the first beam information, the first Beam-ID, and The first Beam-RSRP determines the angle information of
  • the first SSB information extracted from the MR is first mapped to beam information, and the direction of each beam in the downlink of the serving cell can be combined to accurately estimate the direction of the UE relative to the serving cell.
  • 2G, 3G, 4G and other scenarios have a wide coverage of cells, and the azimuth error is large to predict by simply using cell information in MR.
  • the downlink coverage of the 5G base station is divided into multiple beams, and the area covered by each beam is small, and the angle covered by the beam is fixed.
  • the SSB-ID and SSB-RSRP (or Use CSI-RS ID and CSI-RS RSRP) to indirectly calculate the angle of the UE relative to the 5G base station. The prediction angle is more accurate and the positioning accuracy is higher.
  • the target positioning information includes the serving cell ID and the first SSB information (or CSI-RS information). In addition to ), it also includes neighboring cell ID and second SSB information. In addition to the first beam information of the downlink beam of the serving cell, the beam information also includes the second beam information of the downlink beam of the neighboring cell.
  • the angle information includes the UE relative to the In addition to the first angle information of the serving cell, the second angle information of the UE relative to the neighboring cell is also included.
  • the positioning platform determining the angle information of the UE according to the beam information and the target positioning information may include: first, the positioning platform maps the first Beam-ID to the first SSB-ID according to the first beam information and the first SSB information , And correspondingly modify the first SSB-RSRP to the first Beam-RSRP, or the positioning platform maps the first Beam-ID to the CSI-RS ID according to the first beam information and CSI-RS information, and maps the CSI-RS RSRP Correspondingly, it is modified to the first Beam-RSRP, and the first beam information, the first Beam-ID, and the first Beam-RSRP are further determined according to a preset algorithm to determine the first angle information of the UE relative to the serving cell.
  • the positioning platform uniquely maps each second SSB-ID to a corresponding second Beam-ID according to the second beam information and the second SSB information, and at the same time changes the second SSB-RSRP to the second Beam-RSRP correspondingly Finally, the positioning platform determines the second angle information of the UE relative to the neighboring cell according to the preset algorithm based on the second beam information, the second Beam-ID and the second Beam-RSRP.
  • the positioning platform in the 5G scenario obtains the first angle information of the UE relative to the serving cell based on the first SSB information or CSI-RS information, it can further calculate the second angle of the UE relative to the neighboring cell.
  • Angle information using multiple angle information to locate the target position of the UE, the positioning accuracy is higher.
  • the positioning platform determines the target location of the UE according to the target positioning information and configuration information, it can further send the target location to the UE, so that the UE can also obtain the target location where it is at any time and improve user experience.
  • the second aspect of the embodiments of the present application provides a positioning method in a 5G scenario, which specifically includes:
  • the UE obtains the MR in a preset manner, and the preset manner may be to obtain the MR periodically according to a preset period, or to obtain the MR through an event trigger, which is not specifically limited here.
  • the UE extracts the target positioning information in the MR report.
  • the target positioning information includes the serving cell ID of the serving cell where the UE is located and at least one of the first SSB information and CSI-RS information corresponding to the serving cell.
  • the SSB information includes N first SSB-IDs and N first SSB-RSRPs, where N is a positive integer greater than or equal to 1, and the CSI-RS information includes P CSI-RS IDs and P CSI-RS RSRPs, where P is A positive integer greater than or equal to 1, P can be the same as N or different from N.
  • the specifics are not limited here.
  • the UE sends the target positioning information to the positioning platform so that the positioning platform can be configured according to the target positioning information and configuration
  • the information determines the target location of the UE, and the configuration information includes the first configuration information of the serving cell.
  • the target positioning information may further include: the neighboring cell ID of the neighboring cell where the UE is located and the second SSB corresponding to the neighboring cell Information, the second SSB information includes M second SSB-ID and M second SSB-RSRP, M is a positive integer greater than or equal to 1, M can be the same as N, or different from N, specifically not done here Limit; the configuration information also includes the second configuration information of the neighboring cell.
  • the first SSB information may also include N first SSB-RSRQs and/or N first SSB-SINRs;
  • the second SSB information may also include M second SSB-RSRQs and/or M second SSB-SINRs;
  • the CSI-RS information may also include P CSI-RS and SINR.
  • the UE may further obtain the target position of the UE sent by the corresponding positioning platform, so that the UE may obtain the target position of the UE at any time, thereby improving user experience.
  • the third aspect of the embodiments of the present application provides a positioning platform applied in a 5G scenario, and the positioning platform has the function of implementing the above-mentioned first aspect or any one of the possible implementation methods of the first aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the fourth aspect of the embodiments of the present application provides a UE applied in a 5G scenario, and the UE has the function of implementing the foregoing second aspect or any one of the possible implementation methods of the second aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the fifth aspect of the present application provides a positioning platform applied in a 5G scenario, which may include: a memory, a transceiver, a processor, and a bus system.
  • the memory, the transceiver, and the processor are connected through the bus system; wherein the memory Used to store programs and instructions; the transceiver is used to receive or send information under the control of the processor; the processor is used to call the instructions stored in the memory to execute the first aspect of the embodiments of the present application and any one of the implementation manners in the first aspect The positioning method.
  • the sixth aspect of the present application provides a UE applied in a 5G scenario, which may include a memory, a transceiver, a processor, and a bus system.
  • the memory, the transceiver, and the processor are connected through the bus system; wherein the memory is
  • the transceiver is used to store programs and instructions; the transceiver is used to receive or send information under the control of the processor; the processor is used to call the instructions stored in the memory to execute the second aspect of the embodiments of the present application and any of the achievable modes in the second aspect Positioning method.
  • the seventh aspect of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer can execute any one of the foregoing first aspect and the first aspect. Way, the second aspect, or the positioning method of any possible implementation of the second aspect.
  • the eighth aspect of the present application provides a computer program product containing instructions, which, when run on a computer, enables the computer to execute any of the above-mentioned first aspect, any one of the possible implementations of the first aspect, the second aspect, or any of the second aspects. A possible way of positioning.
  • Figure 1 is a schematic diagram of an ECID positioning method in the prior art
  • Figure 2 is a schematic diagram of fingerprint positioning in the prior art
  • Figure 3 is a schematic diagram of a 5G networking structure related to an embodiment of the application.
  • FIG. 4 is a schematic diagram of a specific implementation of a positioning method according to an embodiment of the application.
  • 5 is a schematic diagram of SrvNR including N first SSB-IDs in an embodiment of the application
  • FIG. 6 is a schematic diagram of SrvNR including N second SSB-IDs and NeighNR including M second SSB-IDs in an embodiment of the application;
  • FIG. 7 is a beam shape of eight downlink beams of one NR in an embodiment of the application.
  • FIG. 8 is the pointing angle of the eight beams corresponding to FIG. 7 in an embodiment of the application.
  • FIG. 9 is a schematic diagram of calculating the angle information of the UE relative to the SrvNR in an embodiment of the application.
  • 10 is a schematic diagram of calculating the angle information of the UE relative to SrvNR and NeighNR in an embodiment of the application;
  • Figure 11 is a schematic diagram of a positioning platform in an embodiment of the application.
  • FIG. 12 is another schematic diagram of the positioning platform in an embodiment of the application.
  • FIG. 13 is a schematic diagram of UE in an embodiment of this application.
  • Figure 14 is a schematic diagram of a positioning platform in an embodiment of the application.
  • FIG. 15 is a schematic diagram of a UE in an embodiment of the application.
  • the embodiment of the present application provides a positioning method in a 5G scenario, which is used to solve single-site (ie, single-cell) positioning in a 5G scenario and improve positioning accuracy.
  • FIG 3 is a schematic diagram of a 5G networking structure related to an embodiment of this application.
  • the 5G networking structure includes at least one or more 5G base stations (only two are shown in Figure 3) and at least one or more UEs (Figure 3 Only one of them is shown), the UE is a 5G terminal that can communicate with a 5G base station.
  • the 5G base station can also be called a new radio (NR).
  • the UE can communicate with one or more NR communicates.
  • each NR also has a unique cell ID.
  • NR is the service cell (service new radio, SrvNR).
  • SrvNR service new radio
  • the UE in the embodiments of the present application may also be called a mobile station (MS), mobile terminal, smart terminal, etc., for example, the UE may be a mobile phone (or called a "cellular" phone), a computer with a mobile terminal, etc.
  • the UE can also be a portable, pocket-sized, handheld, computer built-in or vehicle-mounted mobile device, and they can all communicate with the SrvNR.
  • the specific UE is not limited here. Referring to FIG. 4, the specific implementation of a positioning method in the embodiment of the present application is as follows:
  • the UE obtains an MR.
  • the UE obtains the MR in a preset manner, and the preset manner may be to obtain the MR periodically according to a preset period, or to obtain the MR through an event trigger, which is not specifically limited here.
  • the MR may be NR intra-frequency MR or NR inter-frequency MR, which is not specifically limited here.
  • the UE extracts target positioning information in the MR and sends it to the positioning platform.
  • the UE After the UE obtains the MR, it extracts the target positioning information in the MR, and sends the target positioning information to the positioning platform corresponding to the UE.
  • the target positioning information can include a variety of information, which is not specifically limited here:
  • the target positioning information may include the serving cell ID of the SrvNR where the UE is located and the first SSB information corresponding to the SrvNR;
  • the UE can measure the serving cell ID of the UE corresponding to the SrvNR and the first SSB information corresponding to the SrvNR in the MR.
  • the first SSB information includes N first SSB-IDs and N first SSB-RSRPs, and each first SSB-ID corresponds to the first SSB-RSRP respectively, and N is a positive integer greater than or equal to 1.
  • the SrvNR includes N first SSB-IDs, which are marked from 0 and the maximum is N-1.
  • the first SSB information may also include N first SSB-RSRQs and/or N first SSB-SINRs, and each first SSB-ID is associated with the first SSB-RSRQ and the first SSB-RSRQ.
  • SINR also has a one-to-one correspondence, which is defined in 3GPP TS 38.133 in detail, and will not be repeated here.
  • the target positioning information may include the serving cell ID of the SrvNR where the UE is located and the CSI-RS information corresponding to the SrvNR;
  • the UE measuring the CSI-RS information corresponding to the SrvNR is similar to the above-mentioned measuring the first SSB information.
  • the CSI-RS information includes P CSI-RS IDs and P CSI-RS RSRPs, and each CSI-RS ID corresponds to the CSI-RS RSRP one-to-one, starting with 0 and the maximum marking P-1, P is a positive integer greater than or equal to 1, and P may be the same as N or different from N, which is not specifically limited here.
  • the CSI-RS information may also include P CSI-RS SINRs.
  • each CSI-RS ID and CSI-RS SINR also have a one-to-one correspondence, starting with 0 and the maximum marking P -1, which is defined in 3GPP TS 38.133 in detail, and will not be repeated here.
  • the target positioning information may include the serving cell ID of the SrvNR where the UE is located and the first SSB information and CSI-RS information corresponding to the SrvNR;
  • Both the first SSB information and the CSI-RS information measured by the UE can be used as target positioning information, which is similar to the above, and will not be repeated here.
  • the target positioning information may include the serving cell ID of the SrvNR where the UE is located, the first SSB information and/or CSI-RS information, the neighboring cell ID of the NeighNR where the UE is located, and the second SSB information corresponding to the NeighNR;
  • the target positioning information extracted by the UE may also include the neighboring NeighNR of the UE.
  • Zone ID and second SSB information corresponding to NeighNR where the second SSB information includes M second SSB-IDs and M second SSB-RSRPs, each second SSB-ID and second SSB-RSRP respectively
  • M is a positive integer greater than or equal to 1
  • M may be the same as N or different from N, and the details are not limited here.
  • SrvNR includes N second SSB-IDs, which start from 0 and are marked as N-1.
  • NeighNR includes M second SSB-IDs, which start from 0 and are marked as M- 1.
  • the second SSB information may also include M second SSB-RSRQ and/or M second SSB-SINR, each second SSB-ID and second SSB-RSRQ and second SSB- SINR also has a one-to-one correspondence, which is defined in 3GPP TS 38.133 in detail, and will not be repeated here.
  • NeighNR there may be one NeighNR or multiple NeighNRs, which are not specifically limited here.
  • the positioning platform obtains the configuration information imported by NR.
  • the positioning platform After the positioning platform obtains the target positioning information sent by the UE, it will import configuration information such as NR engineering parameters and NR pattern information from the corresponding NR. It should be noted that if the corresponding NR only includes SrvNR, then the configuration information only includes the first configuration information of the SrvNR, and if the corresponding NR also includes NeighNR, then the configuration information also includes the second configuration information of NeighNR.
  • the positioning platform determines the target location of the UE according to the target positioning information and configuration information.
  • the positioning platform can position the UE according to the acquired target positioning information and configuration information, so as to determine the target location of the UE. Specifically, it can include but is not limited to the following positioning methods:
  • the positioning platform determines the fingerprint library according to the configuration information.
  • the fingerprint library is the combination of the fingerprint information of each location point in the SrvNR and/or NeighNR wireless coverage area of the UE and the known location information of the corresponding location point.
  • the fingerprints described in the embodiments of the present application refer to radio fingerprints, which are used to identify radio characteristics (such as the strength of a radio signal), etc.
  • the fingerprint information of each location point is different.
  • the known location information can be real-time GPS information, or it can be measured and stored in the fingerprint database in advance.
  • the specific location information is not limited here.
  • the known location information can be planar location information or three-dimensional location. The information is not limited here.
  • a fingerprint information is the positioning information of a location point, that is, when only the first SSB information is used for positioning, the fingerprint library contains at least the following core information: it must contain the GPS information of each location point, and it must contain one The serving cell ID of the SrvNR and the corresponding first SSB information (that is, at least the first SSB-ID and the first SSB-PSRP are included).
  • the fingerprint library may also include at least one of the first SSB-RSRQ and the first SSB-SINR. 2.
  • the fingerprint library contains at least the following core information: it must include the GPS information of each location point, and it must include a SrvNR serving cell ID and corresponding CSI-RS information (that is, at least Including CSI-RS ID, CSI-RS RSRP).
  • the fingerprint library may also include: CSI-RS SINR. 3.
  • the fingerprint database can contain the information described in 1 and 2 at the same time. The details are not repeated here, so that the positioning of each position point The more content contained in the information, the higher the positioning accuracy.
  • the minimum granularity of fingerprint information and target location information is the first SSB information of SrvNR (that is, at least including N first SSB-IDs and corresponding N first SSB-PSRPs) and/or CSI -RS information (that is, including at least P CSI-RS IDs and corresponding P CSI-RS RSRPs), which makes the data of the fingerprint database more detailed and extensive, which is the same as 2G, 3G, 4G, WiFi and other simple use of cell ID and RSS are used to construct fingerprints, the granularity is smaller, the available fingerprint library positioning accuracy is higher, and it can solve the single-site (that is, only one NR) positioning in the 5G scenario.
  • SrvNR that is, at least including N first SSB-IDs and corresponding N first SSB-PSRPs
  • CSI -RS information that is, including at least P CSI-RS IDs and corresponding P CSI-RS RSRPs
  • the fingerprint library in addition to positioning using the first SSB information and/or CSI-RS information of SrvNR, the fingerprint library can also be combined with NeighNR's second SSB information to further improve the positioning accuracy. Therefore, the fingerprint library It may further include: one or more neighbor cell IDs corresponding to NeighNR and second SSB information corresponding to NeighNR (that is, including the second SSB-ID, the second SSB-PSRP, the second SSB-RSRQ, and the second SSB-SINR At least one of).
  • the smallest granularity of fingerprint information and target location information is the first SSB information of SrvNR (that is, at least including N first SSB-IDs and corresponding N first SSB-PSRPs) and NeighNR Two SSB information (that is, at least M second SSB-IDs and corresponding M second SSB-PSRPs), and CSI-RS information (that is, at least P CSI-RS IDs and corresponding P CSI-RS- RS RSRP), the fingerprint granularity is smaller than the above single-site positioning, and compared with single-site scenarios such as 2G, 3G, 4G, WiFi, etc., there is only one cell ID and one cell RSS fingerprint. The discrimination is higher, and the positioning accuracy is also higher. .
  • the fingerprint library is built on the positioning platform in advance. After the positioning platform obtains the target positioning information, it will compare the target positioning information with the fingerprint information in the fingerprint database until the corresponding target fingerprint information is matched. Then the positioning platform determines the corresponding target according to the target fingerprint information. The location information can further determine that the known location information of the target is the target location where the UE is located. It should be noted here that there are multiple implementation methods for the positioning algorithm based on the fingerprint database, and the industry classic positioning algorithm can be used, which is not limited here.
  • the positioning platform determines the beam information according to the configuration information.
  • the beam information includes the number of beams and the angle at which each beam is pointed.
  • Each beam corresponds to a Beam-ID (also known as BeamID).
  • the pointing angle can be obtained through the antenna pattern.
  • Each Beam-ID can be uniquely mapped to an SSB-ID (also known as SSBID) or uniquely mapped to a CSI-RS ID.
  • the unique mapping method can be multiple , The specifics are not limited here. Exemplarily, taking the unique mapping of BeamID to SSBID as an example, FIG. 7 shows the beam shape of an NR downlink eight beams, and FIG. 8 shows the pointing angles of the eight beams corresponding to FIG. 7. And the corresponding relationship between BeamID and SSBID in Figure 7 and Figure 8 and the pointing angle of each beam are given, as shown in Table 1:
  • the positioning platform can determine the angle information of the UE according to the beam information and the target positioning information, and finally, determine the target position of the UE according to the angle information and the distance information between the UE and the corresponding SrvNR obtained in advance.
  • the distance information between the UE and the corresponding SrvNR obtained in advance by the positioning platform can be measured in a variety of ways, and the details are not limited here. For example, it can be obtained based on TA and/or PA.
  • the angular positioning of the positioning platform may be only the use of SrvNR for angular positioning, or the combination of SrvNR and NeighNR for angular positioning, which is not specifically limited here. The following examples illustrate several specific implementations of angular positioning:
  • the positioning platform only uses SrvNR for angular positioning.
  • the above beam information is the first beam information of the SrvNR downlink beam where the UE is located, and the above angle information is also the first angle information of the UE relative to the SrvNR.
  • Table 2 The mapping relationship of the first SSB-ID, the first Beam-ID, the first SSB-RSRP and the first Beam-RSRP
  • the positioning platform determines the angle information of the UE according to the preset algorithm based on the first beam information, the first Beam-ID, and the first Beam-RSRP.
  • the angle information of the UE relative to the SrvNR can be calculated based on but not limited to the following formula:
  • Is the angle of the UE relative to SrvNR Is the angle of the N beams in the antenna pattern
  • the specific angle data can be calculated according to the antenna pattern (the antenna pattern as shown in Figure 8)
  • the azimuth angle of the common reference cell corresponding to the SrvNR can be obtained through the NR engineering parameters in the configuration information
  • P scaleNorm can be data preprocessed by all beams (ie, N beams).
  • P scaleNorm can be the data processed by energy normalization, or it can be the data processed by all N beams based on other estimation algorithms (such as beam subspace estimation algorithm, random forest regression method, etc.), specifically here Not limited.
  • the target position of the UE is determined according to the angle information of the UE relative to the SrvNR calculated by the above formula and the distance information between the UE and the corresponding SrvNR obtained in advance by the positioning platform.
  • the target positioning information is the serving cell ID and the CSI-RS information
  • the acquisition of the UE's angle information relative to the SrvNR by the positioning platform is similar to the above, and the details are not repeated here.
  • the first SSB information of the MR in the UE is first mapped to beam information, and the direction of each beam of the SrvNR downlink can be combined to accurately estimate the direction of the UE relative to the SrvNR.
  • 2G, 3G, 4G and other scenarios have a wide coverage of cells, and the azimuth error is large to predict by simply using cell information in MR.
  • the NR downlink coverage is divided into multiple beams. The area covered by each beam is small and the angle covered by the beam is fixed.
  • the SSB-ID and SSB-RSRP in MR can be used (or use CSI-RS ID and CSI-RS RSRP) indirectly calculate the UE relative NR angle. The prediction angle is more accurate and the positioning accuracy is higher.
  • the positioning platform uses SrvNR and NeighNR for angular positioning.
  • the target positioning information includes not only the serving cell ID and the first SSB information (or CSI-RS information), but also the neighbor cell ID and the second SSB information.
  • the beam information includes the second SrvNR downlink beam. In addition to the beam information, it also includes the second beam information of the NeighNR downlink beam. In addition to the first angle information of the UE relative to the SrvNR, the angle information also includes the second angle information of the UE relative to the NeighNR.
  • the positioning platform estimates the first angle information of the UE relative to the SrvNR based on the first SSB information or CSI-RS information, and the positioning platform estimates the first angle information of the UE relative to the SrvNR based on the first SSB information or CSI-RS information, which is similar to the above. I will not repeat it here.
  • the positioning platform estimates the second angle information of the UE relative to NeighNR based on the second SSB information.
  • the specific estimation method may be:
  • the positioning platform uniquely maps each second SSB-ID to a corresponding second Beam-ID according to the second beam information and the second SSB information, starting from 0, marking the maximum mark as M-1, and M being greater than or equal to 1.
  • Table 3 The relationship among ID, second SSB-RSRP, and second Beam-RSRP is shown in Table 3 below:
  • Table 3 The mapping relationship between the second SSB-ID, the second Beam-ID, the second SSB-RSRP, and the second Beam-RSRP
  • Second SSB-ID 5 4 Second SSB-RSRP -84 -90 Second Beam-ID 5 4 Second Beam-RSRP -84 -90
  • the positioning platform determines the second angle information of the UE relative to the NeighNR according to the second beam information, the second Beam-ID, and the second Beam-RSRP according to a preset algorithm.
  • the second angle information of the UE relative to the NeighNR can be calculated based on but not limited to the following formula:
  • Is the angle of the UE relative to NeighNR Is the second angle of the M beams in the antenna pattern
  • the specific angle data can be calculated according to the antenna pattern (the antenna pattern as shown in Figure 8)
  • the azimuth angle of the common reference cell corresponding to NeighNR can be obtained through the NR engineering parameter in the configuration information
  • P scaleNorm can be data after preprocessing of all beams (ie, M beams).
  • P scaleNorm can be the data processed by energy normalization, or it can be data processed by all M beams based on other estimation algorithms (such as beam subspace estimation algorithm, random forest regression method, etc.). Not limited.
  • the estimated second angle information of the UE relative to NeighNR can be obtained as follows:
  • NeighNR only one NeighNR is shown. In fact, there can be multiple NeighNRs.
  • the UE's angle information for each NeighNR can be obtained in the above manner.
  • the UE calculated according to the above formula is relative to each
  • the second angle information of a NeighNR is combined with the calculated first angle information of the UE relative to the SrvNR, and the distance information between the UE and the corresponding SrvNR obtained in advance by the positioning platform is used to determine the target location of the UE.
  • the MR in the UE cannot obtain the CSI-RS information of NeighNR, that is, the target positioning information does not contain the CSI-RS information of NeighNR, so the second angle information of the UE relative to NeighNR can only be based on the second SSB Access to information.
  • the positioning platform in the 5G scenario obtains the first angle information of the UE relative to the SrvNR based on the first SSB information or the CSI-RS information, it can further calculate the second angle information of the UE relative to NeighNR. , Using multiple angle information to locate the target position of the UE, with higher positioning accuracy.
  • the positioning platform may further send the target position to the UE so that the UE can know at any time The target location of oneself can improve the user experience.
  • the embodiment of the present application may divide the positioning platform and the UE into functional modules according to the above positioning method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • Figure 11 shows a schematic diagram of a positioning platform.
  • the positioning platform provided by the embodiment of the present application may include:
  • the first obtaining unit 1101 is configured to obtain target positioning information sent by the UE.
  • the target positioning information is extracted by the UE according to the obtained MR.
  • the target positioning information includes the serving cell ID of the SrvNR where the UE is located and the first SSB information corresponding to the SrvNR and At least one of the CSI-RS information, the first SSB information includes the first SSB-ID and the first SSB-RSRP, and the CSI-RS information includes the CSI-RS ID and the CSI-RS RSRP;
  • the second obtaining unit 1102 is configured to obtain configuration information, where the configuration information includes the first configuration information of SrvNR;
  • the determining unit 1103 is configured to determine the target location of the UE according to target positioning information and configuration information.
  • the target location information may also include the neighbor cell ID of the NeighNR where the UE is located and the second SSB information corresponding to the NeighNR.
  • the second SSB information includes the second SSB-ID and the second SSB.
  • SSB-RSRP; further, the configuration information may also include second configuration information of the NeighNR.
  • the determining unit 1103 may also be specifically configured to determine a fingerprint library based on configuration information, the fingerprint library being the fingerprint information and fingerprint information of each location point within the wireless coverage of SrvNR and/or NeighNR
  • the set of known location information corresponding to the location point, the fingerprint information includes the location information of the location point, and the fingerprint database is built on the positioning platform in advance; then, the target location information is matched with the target fingerprint information in the fingerprint database, and Determine the target known location information corresponding to the target fingerprint information; finally, determine the target location where the UE is located according to the target known location information.
  • the first SSB information may also include the first SSB-RSRQ and/or the first SSB-SINR; and/or, the second SSB information may also include the second SSB-RSRQ and /Or the second SSB-SINR; and/or, the CSI-RS information may also include CSI-RS SINR.
  • the positioning platform may further include a sending unit 1104:
  • the sending unit 1104 is configured to send the target location to the UE.
  • the determining unit 1103 may also include more sub-units to implement more functions.
  • FIG. 12 a schematic diagram of another positioning platform provided by an embodiment of this application.
  • the positioning platform specifically includes: a first obtaining unit 1201, a second obtaining unit 1202, a determining unit 1203, and a sending unit 1204.
  • the first acquiring unit 1201, the second acquiring unit 1202, the determining unit 1203, and the sending unit 1204 implement functions similar to those implemented by the first acquiring unit 1101, the second acquiring unit 1102, the determining unit 1103, and the sending unit 1104 in FIG. 11. I won’t repeat them here.
  • the determining unit 1203 may further include:
  • the first determining subunit 12031 is configured to determine beam information according to the configuration information, where the beam information includes the first beam information of the SrvNR downlink beam;
  • the second determining subunit 12032 is configured to determine the angle information of the UE according to the beam information and target positioning information, where the angle information includes the first angle information of the UE relative to the SrvNR;
  • the third determining subunit 12033 is configured to determine the target location of the UE according to the angle information and the distance information between the UE and the corresponding SrvNR obtained in advance.
  • the second determining subunit 12032 may be specifically used to:
  • One Beam-ID is mapped to CSI-RS ID, and CSI-RS RSRP is correspondingly modified to the first Beam-RSRP;
  • the angle information of the UE is determined according to the beam information, the first Beam-ID and the first Beam-RSRP.
  • the beam information may also include the second beam information of the NeighNR downlink beam; the angle information may also include the second angle information of the UE relative to the NeighNR; therefore, the second determining subunit 12032 It can also be used to:
  • the RS information maps the first Beam-ID to the CSI-RS ID, and correspondingly modifies the CSI-RS RSRP to the first Beam-RSRP;
  • the second angle information is determined according to the second beam information, the second Beam-ID, and the second Beam-RSRP.
  • the specific functions and structure of the positioning platform in the embodiment corresponding to FIG. 12 are used to implement the steps of processing by the positioning platform in the foregoing FIGS. 4, 7 to 10, and details are not described here.
  • An embodiment of the UE in the embodiment of the present application includes:
  • the first acquiring unit 1301 is configured to acquire MR in a preset manner
  • the extracting unit 1302 is configured to extract target positioning information in the MR.
  • the target positioning information includes the serving cell ID of the SrvNR where the UE is located and at least one of the first SSB information and CSI-RS information corresponding to the SrvNR.
  • the first SSB information includes The first SSB-ID and the first SSB-RSRP, and the CSI-RS information includes CSI-RS ID and CSI-RS RSRP;
  • the sending unit 1303 is configured to send target positioning information to the positioning platform, so that the positioning platform determines the target location of the UE according to the target positioning information and configuration information, and the configuration information includes the first configuration information of the SrvNR.
  • the target location information may also include the neighbor cell ID of the NeighNR where the UE is located and the second SSB information corresponding to the NeighNR.
  • the second SSB information includes the second SSB-ID and the second SSB.
  • SSB-RSRP; further, the configuration information may also include second configuration information of the NeighNR.
  • the first SSB information may also include the first SSB-RSRQ and/or the first SSB-SINR; and/or, the second SSB information may also include the second SSB-RSRQ and /Or the second SSB-SINR; and/or, the CSI-RS information may also include CSI-RS SINR.
  • the UE may further include a second obtaining unit 1304, which may be specifically used to obtain the target position of the UE sent by the positioning platform.
  • a second obtaining unit 1304 which may be specifically used to obtain the target position of the UE sent by the positioning platform.
  • FIG. 14 it is a schematic diagram of an embodiment of the positioning platform in the embodiment of this application, which specifically includes:
  • the positioning platform may have relatively large differences due to different configurations or performance, and may include one or more central processing units (CPU) 1422 (for example, one or more processors) and memory 1432, one or one
  • the above storage medium 1430 (for example, one or one storage device with a large amount of storage) for storing application programs 1442 or data 1444.
  • the memory 1432 and the storage medium 1430 may be short-term storage or persistent storage.
  • the program stored in the storage medium 1430 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the positioning platform.
  • the central processing unit 1422 may be configured to communicate with the storage medium 1430 and execute a series of instruction operations in the storage medium 1430 on the positioning platform.
  • the positioning platform may also include one or more power supplies 1426, one or more wired or wireless network interfaces 1450, one or more input and output interfaces 1458, and/or one or more operating systems 1441, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • operating systems 1441 such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • the steps in the positioning method in the 5G scenario described in FIGS. 4 to 10 are implemented by the positioning platform based on the structure shown in FIG. 14.
  • FIG. 15 it is a schematic diagram of another embodiment of a UE according to an embodiment of this application.
  • the UE may include mobile phones, tablet computers, smart watches, personal computers, and so on. Take UE as a mobile phone as an example:
  • the mobile phone includes radio frequency (RF) circuit 1510, memory 1520, input unit 1530, display unit 1540, sensor 1550, audio circuit 1560, WiFi module 1570, processor 1580, power supply 1590 and other components.
  • RF radio frequency
  • the RF circuit 1510 can be used for receiving and sending signals during information transmission or communication.
  • the downlink information of NR such as SrvNR or NeighNR
  • the processor 1580 for processing.
  • the memory 1520 may be used to store software programs and modules.
  • the processor 1580 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 1520.
  • the memory 1520 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 1520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the input unit 1530 can be used to receive inputted digital or character information and generate key signal input related to the user settings and function control of the mobile phone.
  • the input unit 1530 may include a touch panel 1531 and other input devices 1532.
  • the display unit 1540 may be used to display information input by the user or information provided to the user and various menus of the mobile phone.
  • the display unit 1540 may include a display panel 1541.
  • the mobile phone may also include at least one sensor 1550, such as a light sensor, a motion sensor, and other sensors.
  • a sensor 1550 such as a light sensor, a motion sensor, and other sensors.
  • the audio circuit 1560, the speaker 1561, and the microphone 1562 can provide an audio interface between the user and the mobile phone.
  • WiFi is a short-distance wireless transmission technology.
  • the mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 1570. It provides users with wireless broadband Internet access.
  • FIG. 15 shows the WiFi module 1570, it can be understood that it is not a necessary component of the mobile phone, and can be omitted as needed without changing the essence of the invention.
  • the processor 1580 is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. It executes by running or executing software programs and/or modules stored in the memory 1520, and calling data stored in the memory 1520. Various functions and processing data of the mobile phone can be used to monitor the mobile phone as a whole.
  • the mobile phone also includes a power supply 1590 (such as a battery) for supplying power to various components.
  • a power supply 1590 (such as a battery) for supplying power to various components.
  • the power supply can be logically connected to the processor 1580 through a power management system, so that functions such as charging, discharging, and power management can be managed through the power management system.
  • the mobile phone may also include a camera, a Bluetooth module, etc., which will not be repeated here.
  • the structure of the UE in the embodiment corresponding to FIG. 13 may be based on the structure shown in FIG. 15, and the structure shown in FIG. 15 may correspondingly execute the steps performed by the UE in the method embodiments in FIG. 4 to FIG. 10, here Do not repeat them one by one.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium, (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state hard disk).

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Abstract

Les modes de réalisation de la présente invention concernent un procédé pour effectuer un positionnement dans des scénarios 5G, une plateforme de positionnement et un terminal utilisateur. Tout d'abord, une plateforme de positionnement acquiert des informations de positionnement cibles envoyées par un terminal utilisateur. Le message de positionnement cible est extrait par le terminal utilisateur, d'un rapport de mesure acquis. Les informations de positionnement cibles comprennent un identifiant de cellule d'une cellule de service dans laquelle le terminal utilisateur est situé et au moins une des informations telles que des premières informations SSB et des informations CSI-RS correspondantes. Les premières informations SSB comprennent un premier SSB-ID et un premier SSB-RSRP, et les informations CSI-RS comprennent un CSI-RS ID et un CSI-RS RSRP. La plateforme de positionnement acquiert ensuite des informations de configuration comprenant des premières informations de configuration de la cellule de service. Enfin, la plate-forme de positionnement détermine un emplacement cible du terminal utilisateur en fonction des informations de positionnement cible et des informations de configuration.
PCT/CN2020/072583 2019-04-11 2020-01-17 Procédé pour effectuer un positionnement dans des scénarios 5g, plate-forme de positionnement et terminal utilisateur WO2020207096A1 (fr)

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