WO2022237354A1 - 终端定位方法、装置、接收端设备及核心网设备 - Google Patents

终端定位方法、装置、接收端设备及核心网设备 Download PDF

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Publication number
WO2022237354A1
WO2022237354A1 PCT/CN2022/083314 CN2022083314W WO2022237354A1 WO 2022237354 A1 WO2022237354 A1 WO 2022237354A1 CN 2022083314 W CN2022083314 W CN 2022083314W WO 2022237354 A1 WO2022237354 A1 WO 2022237354A1
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nlos
identification information
value
reference signal
los identification
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PCT/CN2022/083314
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English (en)
French (fr)
Inventor
方荣一
任斌
张振宇
达人
任晓涛
李刚
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大唐移动通信设备有限公司
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Priority to US18/556,939 priority Critical patent/US20240214969A1/en
Priority to EP22806324.4A priority patent/EP4340475A1/en
Publication of WO2022237354A1 publication Critical patent/WO2022237354A1/zh

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0081—Transmission between base stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0218—Multipath in signal reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a terminal positioning method, device, receiving end equipment, and core network equipment.
  • the accuracy of the wireless signal TOA (Time of Arrival, time of arrival) measurement value is a key part that affects the positioning performance.
  • Wireless signal TOA measurement is a common method to obtain the distance between the two by measuring the propagation delay of radio waves from the transmitter to the receiver.
  • the UE After obtaining the TOA measurement values of the target UE (User Equipment, user equipment) and multiple surrounding TRPs (Transmit Receive Points, sending and receiving points), combined with the known position of the TRP, the UE can be solved through a variety of position calculation algorithms s position.
  • the LMF Location Management Function, location management function
  • NLOS Non Line of Sight , non-line-of-sight
  • LOS Line of Sight, line-of-sight
  • Rice factor is very low, and the use of the delay measurement values corresponding to these links will lead to a serious drop in positioning accuracy. Can not meet the positioning accuracy requirements.
  • the purpose of the present disclosure is to provide a terminal positioning method, device, receiving end equipment, and core network equipment to solve the problem that the positioning accuracy of the terminal positioning method in the related art is low and cannot meet the positioning accuracy requirements.
  • an embodiment of the present disclosure provides a terminal positioning method, including:
  • the receiving end device acquires the first reference signal configuration information and the corresponding first reference signal
  • the receiving end device obtains non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values, where the NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • the receiving end device sends the NLOS/LOS identification information and the measured value to the core network device, and the measured value and the NLOS/LOS identification information are used by the core network device to locate the target terminal; or receive The terminal device locates the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link or the measurement value corresponding to the link between the receiving end device and the transmitting end device.
  • the receiving end device obtains NLOS/LOS identification information, including:
  • the target measurement parameters include at least one of the following:
  • the function value of the time-domain metric parameter is obtained, including:
  • a first preset function operation is performed on the Rice factor of each symbol between the different antennas to obtain a function value of the Rice factor in the time domain.
  • the function value of the frequency domain metric parameter is obtained, including:
  • the CFR is processed in a second preset manner to obtain the processed CFR, and the power normalization is performed on the processed CFR to obtain the distance between the receiving end device and the transmitting end device
  • the function value of the spatial domain metric parameter is obtained, including:
  • Consistency calculation is performed on the CIR or CFR among the different antennas to obtain the airspace consistency factor.
  • generating the NLOS/LOS identification information according to the function value of the target metric parameter includes:
  • the function value of the target metric parameter includes the function value of the target metric parameter corresponding to each access network device or the target metric parameter corresponding to the measured value function value;
  • a fourth preset function operation is performed to generate the NLOS/LOS identification information.
  • generating the NLOS/LOS identification information according to the function value of the target metric parameter includes:
  • the function value of the target metric parameter is greater than the preset threshold value, determine that the corresponding NLOS/LOS identification information is 1, and when the function value of the target metric parameter is less than or equal to the preset threshold value In this case, it is determined that the NLOS/LOS identification information corresponding to each access network device or the measured value is 0; or,
  • an embodiment of the present disclosure further provides a terminal positioning method, including:
  • the core network equipment receives the non-line-of-sight NLOS/line-of-sight LOS identification information and measurement value sent by the receiving end equipment;
  • the target terminal is located according to the NLOS/LOS identification information and the measured value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link or the measurement value corresponding to the link between the receiving end device and the transmitting end device.
  • locating the target terminal according to the NLOS/LOS identification information and the measured value includes:
  • N N ⁇ 3, and N is a positive integer
  • a first preset positioning optimization algorithm is used to locate the target terminal.
  • locating the target terminal according to the NLOS/LOS identification information and the measured value includes:
  • the target terminal is positioned by using a second preset positioning optimization algorithm.
  • an embodiment of the present disclosure also provides a receiver device, including: a memory, a transceiver, and a processor: a memory, used to store computer programs; and a transceiver, used to send and receive data under the control of the processor ; a processor for reading the computer program in said memory and performing the following operations:
  • the receiving end device acquires the first reference signal configuration information and the corresponding first reference signal
  • the receiving end device obtains non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values, where the NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • the receiving end device sends the NLOS/LOS identification information and the measurement value to the core network device, so that the core network device locates the target terminal according to the measurement value and the NLOS/LOS identification information; or The receiving end device locates the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link or the measurement value corresponding to the link between the receiving end device and the transmitting end device.
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • the target measurement parameters include at least one of the following:
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • a first preset function operation is performed on the Rice factor of each symbol between the different antennas to obtain a function value of the Rice factor in the time domain.
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • the CFR is processed in a second preset manner to obtain the processed CFR, and the power normalization is performed on the processed CFR to obtain the distance between the receiving end device and the transmitting end device
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • Consistency calculation is performed on the CIR or CFR among the different antennas to obtain the airspace consistency factor.
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • the function value of the target metric parameter includes the function value of the target metric parameter corresponding to each access network device or the target metric parameter corresponding to the measured value function value;
  • a fourth preset function operation is performed to generate the NLOS/LOS identification information.
  • the processor is configured to read program instructions in the memory and perform the following operations:
  • the function value of the target metric parameter is greater than the preset threshold value, determine that the corresponding NLOS/LOS identification information is 1, and when the function value of the target metric parameter is less than or equal to the preset threshold value In this case, it is determined that the NLOS/LOS identification information corresponding to each access network device or the measured value is 0; or,
  • an embodiment of the present disclosure further provides a terminal positioning device, including:
  • a first acquiring unit configured to acquire first reference signal configuration information and a first reference signal corresponding thereto;
  • the second acquisition unit is configured to obtain non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values, where the NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • a first sending unit configured to send the NLOS/LOS identification information and the measurement value to a core network device, so that the core network device sends a target terminal to the target terminal according to the measurement value and the NLOS/LOS identification information to locate;
  • the first positioning unit is configured to locate the target terminal according to the NLOS/LOS identification information and the measurement value.
  • an embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned terminal positioning method are implemented.
  • an embodiment of the present disclosure also provides a core network device, including: a memory, a transceiver, and a processor: a memory for storing computer programs; a transceiver for sending and receiving under the control of the processor data; a processor for reading the computer program in said memory and performing the following operations:
  • the target terminal is located according to the NLOS/LOS identification information and the measured value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link or the measurement value corresponding to the link between the receiving end device and the transmitting end device.
  • the processor is used to read the computer program in the memory and perform the following operations:
  • N N ⁇ 3, and N is a positive integer
  • a first preset positioning optimization algorithm is used to locate the target terminal.
  • the processor is used to read the computer program in the memory and perform the following operations:
  • the target terminal is positioned by using a second preset positioning optimization algorithm.
  • an embodiment of the present disclosure also provides a terminal positioning device, including:
  • the first receiving unit is configured to receive non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values sent by the receiving end device;
  • the second positioning unit is configured to locate the target terminal according to the NLOS/LOS identification information and the measurement value.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned terminal The steps of the positioning method.
  • the receiving end device obtains the non-line-of-sight NLOS/line-of-sight LOS identification information and measurement value, NLOS/LOS identification information by acquiring the first reference signal configuration information and the corresponding first reference signal; Obtained from the first reference signal configuration information and the corresponding first reference signal; sending the NLOS/LOS identification information and the measured value to the core network device, so that the core network device and the NLOS/LOS identification information to locate the target terminal; or to locate the target terminal according to the NLOS/LOS identification information and the measured value, so that the positioning solution end uses the NLOS/LOS identification information
  • the degree of reliability of each measured value is known, so that the measured values with high reliability are selected for position calculation, so as to improve the positioning accuracy of the terminal and meet the positioning accuracy requirements.
  • FIG. 1 is one of the schematic flowcharts of a terminal positioning method provided by an embodiment of the present disclosure
  • FIG. 2 is the second schematic flow diagram of a terminal positioning method provided by an embodiment of the present disclosure
  • FIG. 3 is one of the exemplary schematic diagrams of generating NLOS/LOS identification information based on a hard decision method in an embodiment of the present disclosure
  • FIG. 4 is the second schematic diagram of an example of generating NLOS/LOS identification information based on a hard decision method in an embodiment of the present disclosure
  • FIG. 5 is a structural block diagram of a receiver device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of modules of a receiver device according to an embodiment of the present disclosure.
  • FIG. 7 is a structural block diagram of a core network device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of modules of a core network device according to an embodiment of the present disclosure.
  • the LOS path there is only one shortest propagation path between the transmitter and the receiver, that is, the LOS path.
  • the electromagnetic wave transmission between the transmitter and the receiver will reflect, refract, and diffract with the ground and surrounding buildings, resulting in multiple propagation paths. This phenomenon is called multipath.
  • NLOS path When there is occlusion between the transmitter and the receiver, there is no LOS path at this time, which is called NLOS path.
  • the delay estimation accuracy mainly depends on the performance of the TOA measurement algorithm.
  • TOA measurement algorithms such as correlation algorithms, that is, through the cross-correlation operation of the received signal and the transmitted signal, a peak spectrum diagram similar to PDP (Power Delay Spectrum, power delay spectrum) is obtained, and the first peak is used as the time delay spectrum.
  • the estimated value of the delay is the first-path delay value.
  • the Rice factor that is, the ratio of the power of the first path to the sum of the powers of other paths
  • the TOA measurement algorithm cannot detect the LOS path, and the measured value will also deviate.
  • the first-path delay cannot accurately reflect the geometric distance between the receiver and the transmitter, and the accuracy of the delay estimation will drop sharply, resulting in a corresponding decrease in the accuracy of the final positioning solution.
  • the time delay measurement value with only NLOS path or the presence of LOS path but the Rice factor is very low is used for positioning, the positioning accuracy will be seriously degraded, which cannot meet the positioning accuracy requirements.
  • the embodiment of the present application provides a terminal positioning method and device, wherein, the method and the device are conceived on the basis of the same application, and since the method and the device have similar problem-solving principles, the implementation of the device and the method can refer to each other, repeat The place will not be repeated.
  • FIG. 1 it is a schematic flowchart of a terminal positioning method provided by an embodiment of the present disclosure, which is applied to a receiving end device, including:
  • Step 101 The receiving end device acquires first reference signal configuration information and a corresponding first reference signal
  • the receiving end device may be a terminal, which specifically refers to a target terminal in this embodiment; the receiving end device may also be an access network device, which specifically refers to a TRP in this embodiment.
  • the first reference signal configuration information is PRS (Positioning Reference Signal, positioning reference signal) configuration information
  • the first reference signal is PRS.
  • the PRS configuration information is forwarded to the target terminal by the TRP through the LMF entity; the PRS is sent to the target terminal by the TRP.
  • the first reference signal configuration information is SRS (Sounding Reference Signal, sounding reference signal) configuration information
  • the first reference signal is SRS.
  • the SRS configuration information is forwarded by the target terminal to the TRP through the LMF entity; the SRS is sent by the target terminal to the TRP.
  • Step 102 The receiving end device obtains non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values, and the NLOS/LOS identification information is obtained from the first reference signal configuration information and the first reference signal corresponding thereto;
  • the transmitter device is the access network device, which corresponds to the downlink positioning scenario; the receiver device is the access network device, and the transmitter device is the target terminal, which corresponds to the uplink positioning scenario. Scenes.
  • the measurements include time measurements, angle measurements or phase measurements.
  • the time measurement value includes a delay measurement value between the receiving end device and the transmitting end device, or a time difference between sending and receiving.
  • the measured value is a delay measurement value between the receiving end device and the transmitting end device
  • the delay measurement value between the receiving end device and the transmitting end device is based on the first reference signal configuration information and The corresponding first reference signal is obtained.
  • the location scenario is an RTT (Round Trip Time, round trip time) location scenario
  • the time difference between sending and receiving includes a first sending and receiving time difference and a second sending and receiving time difference
  • the first sending and receiving time difference is the When the receiving device is the target terminal, the difference between the receiving time of the PRS and the sending time of the SRS; the second sending and receiving time difference is the difference between the receiving time of the SRS and the sending time of the PRS when the receiving device is an access network device.
  • Step 103 The receiving end device sends the NLOS/LOS identification information and the measured value to the core network device, so that the core network device performs the target terminal according to the measured value and the NLOS/LOS identification information Positioning; or the receiving end device locates the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the core network device refers to the LMF entity.
  • the receiving end device is an access network device; or, the receiving end device is a target terminal, and the target terminal is UE_assisted, then send the NLOS/LOS identification information and the measured value to the core network device.
  • the terminal itself can locate the target terminal according to the NLOS/LOS identification information and the measured value, that is, the UE side can complete the positioning by itself solve.
  • the receiving end device acquires the first reference signal configuration information and the corresponding first reference signal; obtains NLOS/LOS identification information and measurement values, and the NLOS/LOS identification information is obtained by the first reference signal Obtaining reference signal configuration information and a first reference signal corresponding thereto; sending the NLOS/LOS identification information and the measured value to core network equipment, so that the core network equipment can use the measured value and the NLOS /LOS identification information to locate the target terminal; or according to the NLOS/LOS identification information and the measurement value, to locate the target terminal, so that the positioning solution terminal obtains each measurement value through the NLOS/LOS identification information
  • the degree of reliability so as to select the measurement value with high reliability for position calculation, so as to improve the positioning accuracy of the terminal and meet the positioning accuracy requirements.
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • the receiver device obtains NLOS/LOS identification information, including:
  • the target measurement parameters include at least one of the following:
  • the target metric parameter is a parameter that can reflect the reliability of the link or the measurement value corresponding to the link between the receiving end device and the transmitting end device.
  • the target metric parameter includes but not limited to at least one of the above.
  • the time domain measurement parameter may be a time domain Rice factor
  • the frequency domain measurement parameter may be a frequency domain variance
  • the space domain measurement parameter may be a space domain consistency factor.
  • other measurement parameters can also be included, such as coincidence degree, peak shape value, peak-to-average ratio coefficient, and the like.
  • the function value of the time domain metric parameter is obtained, including:
  • the CIR is obtained according to the PRS configuration information and the PRS; when the receiving end device is an access network device, the CIR is obtained according to the SRS configuration information and the SRS.
  • antennas of the receiving end device may be understood as between the antennas of the receiving end device and the antennas of the transmitting end device, where the corresponding relationship between the antennas of the receiving end device and the antennas of the transmitting end device is not unique.
  • a first preset function operation is performed on the Rice factor of each symbol between the different antennas to obtain a function value of the Rice factor in the time domain.
  • the first preset function operation is an average value operation or a weighted filtering operation.
  • the first preset function operation is not limited to the above two operations, but other operations are also possible, and linearization can also be performed if necessary.
  • the function value of the frequency domain metric parameter is obtained, including:
  • time delay estimation is performed according to the PRS configuration information and the PRS; when the receiving end device is an access network device, time delay estimation is performed according to the SRS configuration information and the SRS.
  • time delay estimation algorithms may be used to perform time delay estimation.
  • MUSIC Multiple Signal Classification, multi-signal classification
  • correlation algorithm correlation algorithm
  • ML Maximum Likelihood, maximum likelihood
  • the first preset method is used to process the CIR, the purpose of which is to remove the influence of the delay estimation value in the CIR and ensure that the relative delay of the first path (first path) is zero.
  • the first preset method may be cyclic shift.
  • it is not limited to the above methods, and other methods that can remove the influence of the delay value are all available, and no specific limitation is made here.
  • the second preset function operation is an average value operation or a weighted filtering operation.
  • the second preset function operation is not limited to the above two operations, and other operations may also be used.
  • the variance between subcarriers in the CFR of each symbol between different antennas, and the third preset function operation is performed on the variance between subcarriers in the CFR of each symbol between different antennas to obtain the function value of the frequency domain variance.
  • the second preset method is used to process the CFR, the purpose of which is to remove the influence of the estimated time delay in the CFR and ensure that the relative time delay of the first path (first path) is zero.
  • the second preset manner may be frequency domain compensation.
  • it is not limited to the above methods, and other methods that can remove the influence of the delay value are all available, and no specific limitation is made here.
  • the third preset function operation is an average value operation or a weighted filtering operation.
  • the third preset function operation is not limited to the above two operations, and other operations may also be used.
  • the function value of the spatial domain metric parameter is obtained, including:
  • Consistency calculation is performed on the CIR or CFR among the different antennas to obtain the airspace consistency factor.
  • the above three implementations of obtaining the function value of the target metric parameter according to the configuration information of the first reference signal and the first reference signal are based on the fact that the target metric parameter is a single metric parameter. Any combination of two or three of the above implementation manners may be performed, so as to realize the situation that the corresponding target measurement parameters are two measurement parameters and three measurement parameters.
  • generating the NLOS/LOS identification information according to the function value of the target metric parameter includes:
  • the function value of the target metric parameter includes the function value of the target metric parameter corresponding to each access network device or the target metric parameter corresponding to the measured value function value;
  • the function value of the target measurement parameter corresponding to each access network device can be normalized to obtain the target value
  • the function value of the target metric parameter corresponding to each access network device specifically refers to the function value of the target metric parameter corresponding to each access network device, such as a link between each TRP and the target terminal.
  • each access network device may be each non-reference access network device.
  • the measurement value is the time delay measurement value between the receiving end device and the transmitting end device
  • the NLOS/LOS identification information may be each absolute measurement value obtained for a certain TRP, or may be for the difference between a non-reference TRP and a reference TRP Each relative measured difference between, ie TDOA.
  • the delay measurement value refers to the uplink TOA measurement value of each TRP
  • NLOS/LOS identification information are the absolute values obtained for individual measurements of each TRP.
  • the function value of the target metric parameter corresponding to the measured value is normalized to obtain the target value.
  • the function value of the target metric parameter corresponding to the measurement value specifically refers to the function value of the target metric parameter corresponding to multiple measurement values on the link between the access network device, such as TRP, and the target terminal.
  • a fourth preset function operation is performed to generate the NLOS/LOS identification information.
  • This step may specifically include:
  • Each target value is multiplied by a corresponding weight coefficient to obtain the NLOS/LOS identification information.
  • the size of the weight coefficient is determined by the importance of the measurement parameter corresponding to the target value.
  • the NLOS/LOS identification information is used to represent the link between the receiving end device and the transmitting end device. road reliability.
  • the NLOS/LOS identification information is used to represent the reliability of the measured value corresponding to the link between the receiving end device and the transmitting end device degree.
  • the target measurement parameters include time-domain Rice factor, frequency-domain variance, and air-space consistency factor
  • K i , L i , and S i are all values between 0 and 1, where K i is the normalized value of the time-domain Rice factor corresponding to access network device i, and L i is the The normalized value of the reciprocal of the frequency domain variance corresponding to the network access device i, and S i is the normalized value of the air domain consistency factor corresponding to the access network device i.
  • generating the NLOS/LOS identification information according to the function value of the target metric parameter includes:
  • the function value of the target metric parameter is greater than the preset threshold value, determine that the corresponding NLOS/LOS identification information is 1, and when the function value of the target metric parameter is less than or equal to the preset threshold value In this case, it is determined that the NLOS/LOS identification information corresponding to each access network device or the measured value is 0;
  • the function value of the target metric parameter can be normalized first, and then compared with the preset threshold value.
  • corresponding thresholds are set for different metric parameters. For example, for K i corresponding to the normalized Rice factor, Li corresponding to the inverse of the normalized variance , and S i corresponding to the normalized spatial consistency factor, set the corresponding thresholds as TH K , TH L , TH S , which is
  • NLOS/LOS identification information Indicator i is obtained, the value of which is 1 or 0, 0 indicates NLOS, and 1 indicates LOS.
  • & represents the relationship of and.
  • the preset order may be a descending order.
  • the preset condition is to sort the top access network devices or measured values in descending order, and set the corresponding NLOS/LOS identification information to 1; otherwise, set the NLOS/LOS identification information to 0.
  • the receiving end device acquires the first reference signal configuration information and the corresponding first reference signal; obtains NLOS/LOS identification information and measurement values, and the NLOS/LOS identification information is obtained by the first reference signal Obtaining reference signal configuration information and a corresponding first reference signal; sending the NLOS/LOS identification information and the measured value to a core network device, so that the core network device can use the measured value and the NLOS /LOS identification information to locate the target terminal; or according to the NLOS/LOS identification information and the measurement value, to locate the target terminal, so that the positioning solution terminal obtains each measurement value through the NLOS/LOS identification information
  • the degree of reliability so as to select the measurement value with high reliability for position calculation, so as to improve the positioning accuracy of the terminal and meet the positioning accuracy requirements.
  • FIG. 2 it is a schematic flowchart of a terminal positioning method provided by an embodiment of the present disclosure, which is applied to a core network device, including:
  • Step 201 The core network device receives the non-line-of-sight NLOS/line-of-sight LOS identification information and measurement value sent by the receiving end device;
  • the receiving end device may be a terminal, which specifically refers to a target terminal in this embodiment; the receiving end device may also be an access network device, which specifically refers to a TRP in this embodiment.
  • the core network device is an LMF entity.
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • the transmitter device is the access network device, which corresponds to the downlink positioning scenario; the receiver device is the access network device, and the transmitter device is the target terminal, which corresponds to the uplink positioning scenario. Scenes.
  • the measurements include time measurements, angle measurements or phase measurements.
  • the time measurement value includes a delay measurement value between the receiving end device and the transmitting end device, or a time difference between sending and receiving.
  • the positioning scenario is an uplink+uplink positioning scene
  • the time difference between sending and receiving includes a first time difference between sending and receiving and a second time difference between sending and receiving, where the first time difference between sending and receiving means that the receiving end device is a target terminal , the difference between the receiving time of the PRS and the sending time of the SRS; the second sending and receiving time difference is the difference between the receiving time of the SRS and the sending time of the PRS when the receiving end device is an access network device.
  • Step 202 The core network device locates the target terminal according to the NLOS/LOS identification information and the measured value.
  • the core network device receives the NLOS/LOS identification information and the measurement value sent by the receiving end device; according to the NLOS/LOS identification information and the measurement value, the target terminal is positioned, so ,
  • the positioning calculation end obtains the reliability of each measurement value through the NLOS/LOS identification information, so as to filter the measurement values with high reliability for position calculation, thereby improving the positioning accuracy of the terminal and meeting the positioning accuracy requirements.
  • step 202, locating the target terminal according to the NLOS/LOS identification information and the measured value may include:
  • N N ⁇ 3, and N is a positive integer
  • the NLOS/LOS identification information corresponds to the measurement value corresponding to the link between the receiving end device and the transmitting end device, then sort the multiple measurement values corresponding to each access network device according to the NLOS/LOS identification information, Select the largest corresponding NLOS/LOS identification information, and then determine the top N access network devices and their corresponding NLOS/LOS identification information corresponding to each access network device in order of value from large to small Measurements.
  • the NLOS/LOS identification information represents the reliability of the link between the receiving end device and the transmitting end device, determine the top N access network devices in descending order of values.
  • the NLOS/LOS identification information is used as the weighted value of the measurement value construction equation corresponding to each determined access network device to increase the effect of reliable measurement values and reduce the influence of unreliable measurement values.
  • a first preset positioning optimization algorithm is used to locate the target terminal.
  • the first preset positioning optimization algorithm may be the least residual method, RAIM (Receiver Autonomous Integrity Monitoring, receiver self-integrity monitoring), RANSAC (Random sample consensus, random sampling consensus) algorithm, etc.
  • RAIM Receiveiver Autonomous Integrity Monitoring, receiver self-integrity monitoring
  • RANSAC Random sample consensus, random sampling consensus
  • step 202, locating the target terminal according to the NLOS/LOS identification information and the measured value may include:
  • the target terminal is located by using a second preset positioning optimization algorithm.
  • the second preset positioning optimization algorithm may be the least residual method, RAIM, RANSAC algorithm and the like. Using the second preset positioning optimization algorithm to locate the target terminal can further improve the accuracy of positioning.
  • a measurement value with a value of 1 is selected, and the selected measurement values have high reliability, and terminal positioning based on this can obtain high positioning accuracy.
  • the core network equipment receives the NLOS/LOS identification information and the measurement value sent by the receiving end equipment; according to the NLOS/LOS identification information and the measurement value, the target terminal is located, so ,
  • the positioning calculation terminal obtains the reliability of each measurement value through the NLOS/LOS identification information, so as to filter the measurement values with high reliability for position calculation, thereby improving the positioning accuracy of the terminal and meeting the positioning accuracy requirements.
  • Embodiment 1 corresponds to a downlink positioning scenario, where the TOA measurement algorithm is the MUSIC algorithm
  • the UE acts as a receiving end device
  • the TRP acts as a transmitting end device
  • Step 1 Receive the PRS configuration information sent by the LMF entity
  • the TPR forwards the PRS configuration information to the UE through the LMF entity.
  • Step 2 Receive the downlink PRS, and obtain the delay measurement value and NLOS/LOS identification information between the UE and the TRP according to the PRS configuration information and the downlink PRS;
  • obtaining the NLOS/LOS identification information can be achieved through the following steps:
  • Step 2.1 Obtain the CIR according to the PRS configuration information and the downlink PRS; and obtain the energy relationship between each path between the UE and the TRP according to the CIR, and calculate the average value of the Rice factor of the CIR of 4 antennas and 14 symbols;
  • Step 2.2 Estimate MUSIC delay based on PRS configuration information and downlink PRS, and obtain estimated delay value
  • Step 2.3 According to the time delay estimate, the CIR is cyclically shifted to remove the influence of the time delay estimate in the CIR;
  • the purpose of cyclically shifting the CIR is to remove the influence of the time delay estimate in the CIR and ensure that the relative time delay of the first path is zero.
  • Step 2.4 Reacquire the CIR, perform power normalization, and obtain the CFR of each symbol between different antennas through time-frequency conversion, and calculate the average value of the variance of each subcarrier in the CFR of 4 antennas and 14 symbols;
  • Step 2.5 Generate NLOS/LOS identification information according to the following soft decision method according to the reciprocal of the mean value of the Rice factor and the mean value of the variance.
  • the reason why the weight coefficient is set in this way is that the variance in the frequency domain determines whether the link is LOS or NLOS, which is more important than the Rice factor.
  • Step 3 Send the delay measurement value and NLOS/LOS identification information to the LMF.
  • the delay measurement value can be TDOA, that is, the time difference between the non-reference TRP and the reference TRP to the UE
  • the NLOS/LOS identification information can be the absolute value obtained by measuring each TRP separately, or it can be the difference between the non-reference TRP and the reference TRP the relative difference between.
  • Indicator i 1...18, select the six TRP measured values with the largest Indicator i for solution, and use Indicator i as the construction equation of the six TRP time delay measured values used Weighted value for position calculation.
  • Embodiment 2 corresponds to the downlink positioning scenario, where the TOA measurement algorithm is the ML algorithm
  • Step 11 receiving the PRS configuration information sent by the LMF entity
  • the TPR forwards the PRS configuration information to the UE through the LMF entity.
  • Step 12 Receive the downlink PRS, and obtain the delay measurement value and NLOS/LOS identification information between the UE and the TRP according to the PRS configuration information and the downlink PRS;
  • obtaining the NLOS/LOS identification information can be achieved through the following steps:
  • Step 12.1 Obtain the CIR according to the PRS configuration information and the downlink PRS; and obtain the energy relationship between each path between the UE and the TRP according to the CIR, and calculate the average value of the Rice factor of the CIR of 4 antennas and 14 symbols;
  • Step 12.2 Perform ML delay estimation based on the PRS configuration information and the downlink PRS to obtain an estimated delay value
  • Step 12.3 Perform cyclic shift on the CIR according to the estimated delay value, so as to remove the influence of the estimated delay value in the CIR.
  • the purpose of cyclically shifting the CIR is to remove the influence of the estimated time delay in the CIR and ensure that the relative time delay of the first path is zero.
  • Step 12.4 Reacquire the CIR, perform power normalization, and obtain the CFR of each symbol between different antennas through time-frequency conversion, and calculate the average value of the variance of each subcarrier in the CFR of 4 antennas and 14 symbols;
  • Step 12.5 According to the reciprocal of the mean value of the Rice factor and the mean value of the variance, generate NLOS/LOS identification information in the following hard decision manner.
  • NLOS/LOS identification information Indicator i is obtained, the value of which is 0 or 1, 0 representing NLOS, and 1 representing LOS.
  • the normalized Rice factor K i the normalized reciprocal variance L i , and the normalized consistency factor S i can also be sorted from large to small, and a reasonable choice among these three sequences For N links, set their NLOS/LOS identification information to 1.
  • Step 13 Send the delay measurement value and NLOS/LOS identification information to the LMF.
  • the delay measurement value can be TDOA, that is, the time difference between the non-reference TRP and the reference TRP and the UE
  • the NLOS/LOS identification information can be the absolute value obtained by measuring each TRP separately, or it can be the difference between the non-reference TRP and the reference TRP. the relative difference between.
  • the NLOS/LOS identification information only the TRP measurement values whose Indicator is 1 are selected for RANSAC positioning.
  • the measured values selected through the NLOS/LOS identification information have high reliability and can obtain high positioning accuracy.
  • Embodiment 3 corresponds to an uplink positioning scenario, and the TOA measurement algorithm is an oversampling correlation algorithm
  • the TRP acts as a receiving end device
  • the UE acts as a transmitting end device
  • Step 21 receiving the SRS configuration information sent by the LMF entity
  • the UE forwards the SRS configuration information to the TRP through the LMF entity;
  • Step 22 Receive the uplink SRS, and obtain the delay measurement value and NLOS/LOS identification information between the UE and the TRP according to the SRS configuration information and the uplink SRS;
  • obtaining the delay measurement value and NLOS/LOS identification information between the UE and the TRP can be achieved through the following steps:
  • Step 22.1 Obtain the CIR according to the SRS configuration information and the uplink SRS; and obtain the energy relationship between each path between the UE and the TRP according to the CIR, and calculate the average Rice factor of the CIR with 4 antennas and 14 symbols;
  • Step 22.2 Perform oversampling-related delay estimation based on the SRS configuration information and the uplink SRS to obtain an estimated delay value
  • Step 22.3 Perform frequency domain compensation on the CFR according to the time delay estimate to remove the influence of the time delay estimate in the CFR;
  • the purpose of performing frequency domain compensation on the CFR is to remove the influence of the time delay estimation value in the SRS, and ensure that the relative time delay of the first path is zero.
  • Step 22.4 Reacquire the CIR, perform power normalization, and obtain the CFR of each symbol between different antennas through time-frequency conversion, and calculate the average value of the variance of each subcarrier in the CFR of 4 antennas and 14 symbols;
  • Step 22.5 According to the mean value of the Rice factor, the inverse of the mean value of the variance, and the spatial consistency factor, generate NLOS/LOS identification information in the following soft decision manner.
  • the reason why the weight coefficient is set in this way is that the variance in the frequency domain determines whether the link is LOS or NLOS, which is more important than the Rice factor, while the spatial consistency factor has less effect on the judgment.
  • Step 23 Send the delay measurement value and NLOS/LOS identification information to the LMF.
  • the uplink TOA measurement value refers to the uplink TOA measurement value of each TRP
  • the NLOS/LOS identification information is an absolute value obtained through independent measurement of each TRP.
  • Indicator i 1...18, select the six TRP measured values with the largest Indicator i for solution, and use Indicator i as the construction equation of the six TRP time delay measured values used Weighted value for position calculation.
  • Embodiment 4 corresponds to the RRT scenario
  • Step 31 Receive the PRS configuration information sent by the LMF entity
  • the TPR forwards the PRS configuration information to the UE through the LMF entity.
  • Step 32 Receive downlink PRS, obtain PRS receiving time and NLOS/LOS identification information
  • obtaining NLOS/LOS identification information can be achieved through the following steps:
  • Step 32.1 Obtain the CIR according to the PRS configuration information and the downlink PRS; and obtain the energy relationship between each path between the UE and the TRP according to the CIR, and calculate the average Rice factor of the CIR with 4 antennas and 14 symbols;
  • Step 32.2 Perform related delay estimation based on the PRS configuration information and the downlink PRS to obtain an estimated delay value
  • Step 32.2 Perform cyclic shift on the CIR according to the estimated time delay value, so as to remove the influence of the estimated time delay value in the CIR.
  • the purpose of cyclically shifting the CIR is to remove the influence of the time delay estimate in the CIR and ensure that the relative time delay of the first path is zero.
  • Step 32.4 Reacquire the CIR, perform power normalization, and obtain the CFR of each symbol between different antennas through time-frequency conversion, and calculate the average value of the variance of each subcarrier in the CFR of 4 antennas and 14 symbols;
  • Step 32.5 According to the reciprocal of the mean value of the Rice factor and the mean value of the variance, generate NLOS/LOS identification information in the following hard decision manner.
  • the normalized Rice factor K i and the normalized reciprocal variance L i are respectively sorted from large to small, as shown in FIG. 3 and FIG. 4 .
  • it corresponds to 18 TRPs.
  • the second row in Figure 3 represents the normalized Rice factor K i corresponding to each TRP
  • the third row represents the number of the corresponding TRP after sorting from large to small, for example, 5 in the third row ranks first
  • One bit indicates that the normalized Rice factor K i corresponding to TRP5 is the largest.
  • the second row in FIG. 4 represents the normalized reciprocal variance L i corresponding to each TRP, and the third row represents the number of the corresponding TRP after sorting from large to small.
  • Step 33 forward the SRS configuration information to the TRP through the LMF;
  • Step 34 Send an uplink SRS to the TRP;
  • the sending time of sending the SRS can be obtained, so as to obtain the sending and receiving time difference.
  • Step 35 Calculate the time difference between sending and receiving of the UE, and send the time difference between sending and receiving of the UE and the NLOS/LOS identification information to the LMF entity.
  • the NLOS/LOS identification information may be an absolute value measured separately for each TRP, or a relative difference between a non-reference TRP and a reference TRP.
  • Step 41 forward the PRS configuration signal to the UE through the LMF entity
  • Step 42 Send the downlink PRS to the UE
  • This step can obtain the sending time of sending the PRS
  • Step 43 Receive the SRS configuration information sent by the LMF entity
  • the UE forwards the SRS configuration information to the TRP through the LMF entity;
  • Step 44 Receive the uplink SRS, and obtain the receiving time of the SRS and the NLOS/LOS identification information;
  • obtaining NLOS/LOS identification information can be achieved through the following steps:
  • Step 44.1 Obtain the CIR according to the SRS configuration information and the uplink SRS; and obtain the energy relationship between each path between the UE and the TRP according to the CIR, and calculate the average Rice factor of the CIR with 4 antennas and 14 symbols;
  • Step 44.2 Perform correlation delay estimation based on the SRS configuration information and uplink SRS to obtain an estimated delay value
  • Step 44.3 Perform frequency domain compensation on the CFR according to the time delay estimate to remove the influence of the time delay estimate in the CFR;
  • the purpose of performing frequency domain compensation on the CFR is to remove the influence of the time delay estimate in the CFR and ensure that the relative time delay of the first path is zero.
  • Step 44.4 Reacquire the CFR, perform power normalization, and calculate the average value of the variance of each subcarrier in the CFR of 4 antennas and 14 symbols;
  • Step 44.5 According to the reciprocal of the mean value of the Rice factor and the mean value of the variance, generate NLOS/LOS identification information in the following hard decision manner.
  • the normalized Rice factor K i and the normalized reciprocal variance L i are respectively sorted from large to small, which is the same as the process on the UE side.
  • TRP1, TRP5, TRP6, TRP9, and TRP13 set the NLOS/LOS identification information of these five TRPs to 1, and set the NLOS/LOS identification information of the remaining TRPs to 0.
  • Step 45 Calculate the TRP sending and receiving time difference, and send the TRP sending and receiving time difference and NLOS/LOS identification information to the LMF entity.
  • the NLOS/LOS identification information only the TRP measurement values reported by the UE and the TRP whose Indicators are all 1, that is, TRP1, TRP5, TRP6, and TRP9, can be selected for positioning, or directly use all TRPs whose Indicators are 1, and use the RANSAC algorithm to solve.
  • the measured values selected through the NLOS/LOS identification information have high reliability and can obtain high positioning accuracy.
  • the embodiment of the present disclosure also provides a receiver device, including: a memory 520, a transceiver 500, and a processor 510; the memory 520 is used to store program instructions; the transceiver 500 is used to Sending and receiving data under the control of the processor 510; the processor 510 is used to read the program instructions in the memory 520, and is used to perform the following operations:
  • NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • the core network device sends the NLOS/LOS identification information and the measured value to a core network device through the transceiver 500, so that the core network device locates the target terminal according to the measured value and the NLOS/LOS identification information; Or locate the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 510 and memory represented by the memory 520. Various circuits are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • Transceiver 500 may be a plurality of elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media, including wireless channels, wired channels, fiber optic cables, etc. Transmission medium.
  • the user interface 530 may also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 when performing operations.
  • the processor 510 may be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) or CPLD (Complex Programmable Logic Device, complex programmable logic device), the processor 510 may also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, Field Programmable Gate Array
  • CPLD Complex Programmable Logic Device, complex programmable logic device
  • the processor 510 is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the program instructions stored in the memory.
  • the processor 510 and the memory 720 may also be arranged physically separately.
  • the user interface 530 in FIG. 5 may be removed.
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • the target measurement parameters include at least one of the following:
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • a first preset function operation is performed on the Rice factor of each symbol between the different antennas to obtain a function value of the Rice factor in the time domain.
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • the CFR is processed in a second preset manner to obtain the processed CFR, and the power normalization is performed on the processed CFR to obtain the distance between the receiving end device and the transmitting end device
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • Consistency calculation is performed on the CIR or CFR among the different antennas to obtain the airspace consistency factor.
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • the function value of the target metric parameter includes the function value of the target metric parameter corresponding to each access network device or the target metric parameter corresponding to the measured value function value;
  • a fourth preset function operation is performed to generate the NLOS/LOS identification information.
  • processor 510 is configured to read program instructions in the memory and perform the following operations:
  • the function value of the target metric parameter is greater than the preset threshold value, determine that the corresponding NLOS/LOS identification information is 1, and when the function value of the target metric parameter is less than or equal to the preset threshold value In this case, it is determined that the NLOS/LOS identification information corresponding to each access network device or the measured value is 0; or,
  • the receiver device in the embodiment of the present disclosure obtains the NLOS/LOS identification information and the measurement value by acquiring the first reference signal configuration information and the corresponding first reference signal, and the NLOS/LOS identification information is determined by the first reference signal Obtain the configuration information and the corresponding first reference signal; send the NLOS/LOS identification information and the measured value to the core network device, so that the core network device can identify it according to the measured value and the NLOS/LOS information, to locate the target terminal; or to locate the target terminal according to the NLOS/LOS identification information and the measurement value, so that the positioning solution terminal obtains the reliability of each measurement value through the NLOS/LOS identification information Degree, so as to filter the measurement value with high reliability for position calculation, so as to improve the positioning accuracy of the terminal and meet the positioning accuracy requirements.
  • an embodiment of the present disclosure also provides a terminal positioning device, including:
  • a first obtaining unit 601, configured to obtain first reference signal configuration information and a first reference signal corresponding thereto;
  • the second obtaining unit 602 is configured to obtain non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values, where the NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • the first sending unit 603 is configured to send the NLOS/LOS identification information and the measurement value to the core network equipment, so that the core network equipment can send the target to the target according to the measurement value and the NLOS/LOS identification information terminal for positioning; or,
  • the first positioning unit 604 is configured to locate the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • the second acquiring unit 602 is specifically configured to:
  • the target measurement parameters include at least one of the following:
  • the second acquiring unit 602 is specifically configured to:
  • a first preset function operation is performed on the Rice factor of each symbol between the different antennas to obtain a function value of the Rice factor in the time domain.
  • the second acquiring unit 602 is specifically configured to:
  • the CFR is processed in a second preset manner to obtain the processed CFR, and the power normalization is performed on the processed CFR to obtain the distance between the receiving end device and the transmitting end device
  • the second acquiring unit 602 is specifically configured to:
  • Consistency calculation is performed on the CIR or CFR among the different antennas to obtain the airspace consistency factor.
  • the second acquiring unit 602 is specifically configured to:
  • the function value of the target metric parameter includes the function value of the target metric parameter corresponding to each access network device or the target metric parameter corresponding to the measured value function value;
  • a fourth preset function operation is performed to generate the NLOS/LOS identification information.
  • the second acquiring unit 602 is specifically configured to:
  • the function value of the target metric parameter is greater than the preset threshold value, determine that the corresponding NLOS/LOS identification information is 1, and when the function value of the target metric parameter is less than or equal to the preset threshold value In this case, it is determined that the NLOS/LOS identification information corresponding to each access network device or the measured value is 0; or,
  • the terminal positioning device obtains the NLOS/LOS identification information and the measurement value by acquiring the first reference signal configuration information and the first reference signal corresponding thereto, and the NLOS/LOS identification information is determined by the first reference signal Obtain the configuration information and the corresponding first reference signal; send the NLOS/LOS identification information and the measured value to the core network device, so that the core network device can identify it according to the measured value and the NLOS/LOS information, to locate the target terminal; or to locate the target terminal according to the NLOS/LOS identification information and the measurement value, so that the positioning solution terminal obtains the reliability of each measurement value through the NLOS/LOS identification information Degree, so as to filter the measurement value with high reliability for position calculation, so as to improve the positioning accuracy of the terminal and meet the positioning accuracy requirements.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the essence of the technical solution of this application or the part that contributes to the related technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • a processor processor
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • a processor-readable storage medium stores program instructions, and the program instructions are used to make the processor perform the following steps:
  • NLOS/LOS identification information is obtained from the first reference signal configuration information and the corresponding first reference signal;
  • the program When the program is executed by the processor, it can realize all the implementation methods in the above embodiment of the method applied to the receiver device side as shown in FIG. 1 , and to avoid repetition, details are not repeated here.
  • an embodiment of the present disclosure also provides a core network device, including: including: a memory 720, a transceiver 700, and a processor 710: the memory 720 is used to store computer programs; the transceiver 700 is used to Send and receive data under the control of the processor 710; the processor 710 is used to read the computer program in the memory 720 and perform the following operations:
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 710 and various circuits of the memory represented by the memory 720 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • Transceiver 700 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 when performing operations.
  • the processor 710 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • the processor 710 is configured to read the computer program in the memory and perform the following operations:
  • N N ⁇ 3, and N is a positive integer
  • a first preset positioning optimization algorithm is used to locate the target terminal.
  • the processor 710 is configured to read the computer program in the memory and perform the following operations:
  • the second preset positioning optimization algorithm is used to locate the target terminal.
  • the core network device in the embodiment of the present disclosure locates the target terminal according to the NLOS/LOS identification information and the measurement value sent by the receiving end device after receiving the NLOS/LOS identification information and the measurement value.
  • the positioning solution The calculation terminal obtains the reliability of each measurement value through the NLOS/LOS identification information, so as to select the measurement value with high reliability for position calculation, thereby improving the positioning accuracy of the terminal and meeting the positioning accuracy requirements.
  • the implementation of the present disclosure also provides a terminal positioning device, including:
  • the first receiving unit 801 is configured to receive non-line-of-sight NLOS/line-of-sight LOS identification information and measurement values sent by the receiving end device;
  • the second positioning unit 802 is configured to locate the target terminal according to the NLOS/LOS identification information and the measurement value.
  • the NLOS/LOS identification information is used to characterize the reliability of the link between the receiving end device and the transmitting end device or the measurement value corresponding to the link.
  • the second positioning unit 802 is specifically configured to:
  • N N ⁇ 3, and N is a positive integer
  • a first preset positioning optimization algorithm is used to locate the target terminal.
  • the second positioning unit 802 is specifically configured to:
  • the target terminal is positioned by using a second preset positioning optimization algorithm.
  • the terminal locating device in the embodiment of the present disclosure locates the target terminal according to the NLOS/LOS identification information and the measurement value sent by the receiving end device after receiving the NLOS/LOS identification information and the measurement value, so the positioning solution
  • the calculation terminal obtains the reliability of each measurement value through the NLOS/LOS identification information, so as to select the measurement value with high reliability for position calculation, thereby improving the positioning accuracy of the terminal and meeting the positioning accuracy requirements.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the essence of the technical solution of this application or the part that contributes to the related technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • a processor processor
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • a processor-readable storage medium stores program instructions, and the program instructions are used to make the processor perform the following steps:
  • the target terminal is located according to the NLOS/LOS identification information and the measured value.
  • the program When the program is executed by the processor, it can realize all the implementation methods in the above embodiment of the method applied to the core network device side as shown in FIG. 2 . To avoid repetition, details are not repeated here.
  • the applicable system can be Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) general packet Wireless business (General Packet Radio Service, GPRS) system, Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD) system, Long Term Evolution Advanced (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Long Term Evolution Advanced
  • UMTS
  • the terminal device involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal equipment may be different.
  • the terminal equipment may be called User Equipment (User Equipment, UE).
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • a mobile terminal equipment such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.
  • the network device involved in this embodiment of the present application may be a base station, and the base station may include multiple cells that provide services for terminals.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network equipment involved in the embodiment of the present application may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a Long Term Evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present application.
  • the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, and the Centralized Unit and the Distributed Unit may also be arranged
  • MIMO transmission can be Single User MIMO (Single User MIMO, SU-MIMO) or Multi-User MIMO (Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission, etc.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

本公开提供一种终端定位方法、装置、接收端设备及核心网设备，解决相关技术中终端定位方法的定位精度低，无法满足定位精度要求的问题。本公开的方法：接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；接收端设备获得NLOS/LOS识别信息和测量值；接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。

Description

终端定位方法、装置、接收端设备及核心网设备
相关申请的交叉引用
本申请主张在2021年5月11日在中国提交的中国专利申请号No.202110513670.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种终端定位方法、装置、接收端设备及核心网设备。
背景技术
在无线通信的定位系统中，无线信号TOA(Time of Arrival，到达时间)测量值的精度是影响定位性能的关键部分。
无线信号TOA测量是通过测量无线电波从发射机到接收机的传播时延获取两者之间的距离的常用方法。当获取到目标UE(User Equipment，用户设备)与周围多个TRP(Transmit Receive Point，发送接收点)的TOA测量值后，结合TRP的已知位置，即可通过多种位置解算算法求解UE的位置。
目前终端定位方法中，由于LMF(Location Management Function，位置管理功能)实体无法获知UE/gNB所提供的时延测量值是否对应于接收机与发射机之间的链路只有NLOS(Non Line of Sight，非视距)径不存在LOS(Line of Sight，视距)径，或者存在LOS径但莱斯因子很低的情况，存在使用这些链路对应的时延测量值会导致定位精度严重下降，无法满足定位精度要求。
发明内容
本公开的目的在于提供一种终端定位方法、装置、接收端设备及核心网设备，用以解决相关技术中终端定位方法的定位精度低，无法满足定位精度要求的问题。
为了实现上述目的，本公开实施例提供一种终端定位方法，包括：
接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；
接收端设备获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，所述测量值和所述NLOS/LOS识别信息用于所述核心网设备，对目标终端进行定位；或者接收端设备根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
其中，接收端设备获得NLOS/LOS识别信息，包括：
根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
其中，所述目标度量参数包括下述中的至少一项：
时域度量参数；
频域度量参数；
空域度量参数。
其中，根据所述第一参考信号配置信息和所述第一参考信号，得到时域度量参数的函数值，包括：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
其中，根据所述第一参考信号配置信息和所述第一参考信号，得到频域度量参数的函数值，包括：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR和信道频域响应CFR；
基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得 到时延估计值；
根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
其中，根据所述第一参考信号配置信息和所述第一参考信号，得到空域度量参数的函数值，包括：
根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
其中，根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息，包括：
将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
其中，根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息，包括：
在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的 接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
为了实现上述目的，本公开实施例还提供一种终端定位方法，包括：
核心网设备收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
其中，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，包括：
根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
确定出所述N个接入网设备中各个接入网设备所对应的测量值；
基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；或者，
基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
其中，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，包括：
确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
为了实现上述目的，本公开实施例还提供一种接收端设备，包括：存储器、收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并 执行以下操作：
接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；
接收端设备获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者接收端设备根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
其中，所述目标度量参数包括下述中的至少一项：
时域度量参数；
频域度量参数；
空域度量参数。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR和信道频域响应CFR；
基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
为了实现上述目的，本公开实施例还提供一种终端定位装置，包括：
第一获取单元，用于获取第一参考信号配置信息以及与其对应的第一参考信号；
第二获取单元，用于获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
第一发送单元，用于将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者，
第一定位单元，用于根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
为了实现上述目的，本公开实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现如上述所述的终端定位方法的步骤。
为了实现上述目的，本公开实施例还提供了一种核心网设备，包括：存储器、收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
通过所述收发机收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
其中，所述处理器用于读取所述存储器中的计算机程序并执行以下操作：
根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
确定出所述N个接入网设备中各个接入网设备所对应的测量值；
基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于 加权后的测量方程，对目标终端进行定位；或者，
基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
其中，所述处理器用于读取所述存储器中的计算机程序并执行以下操作：
确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
为了实现上述目的，本公开实施例还提供了一种终端定位装置，包括：
第一接收单元，用于收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
第二定位单元，用于根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
为了实现上述目的，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述所述的终端定位方法的步骤。
本公开的上述技术方案至少具有如下有益效果：
本公开实施例的上述技术方案中，接收端设备通过获取第一参考信号配置信息以及与其对应的第一参考信号；获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
附图说明
图1为本公开实施例提供的终端定位方法的流程示意图之一；
图2为本公开实施例提供的终端定位方法的流程示意图之二；
图3为本公开实施例基于硬判决方式生成NLOS/LOS识别信息的示例示意图之一；
图4为本公开实施例基于硬判决方式生成NLOS/LOS识别信息的示例示意图之二；
图5为本公开实施例的接收端设备的结构框图；
图6为本公开实施例的接收端设备的模块示意图；
图7为本公开实施例的核心网设备的结构框图；
图8为本公开实施例的核心网设备的模块示意图。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在理想信道条件下，发射机与接收机只存在一条最短传播路径，即LOS径。而在实际无线信道中，发射机与接收机之间的电磁波传输时会与地面以及周围建筑物发生反射、折射、绕射现象，导致出现多条传播路径，这种现象称为多径。当发射机与接收机间存在遮挡，此时不存在LOS径，称为NLOS径。
在存在LOS径的情况下，首径(具体指的是LOS径)时延能够准确反映接收机和发送机间的几何距离，此时时延估计精度主要取决于TOA测量算法的性能。常用的TOA测量算法如相关类算法，即通过将接收信号与发送信 号进行互相关操作，得到类似于PDP(Power Delay Spectrum，功率时延谱)的峰谱图，将其中第一个峰作为时延估计值，即首径时延值。
其中，在存在LOS径的情况下，若莱斯因子(即首径功率与其余各径功率和之比)很低，TOA测量算法无法检测出LOS径，则测量值也会出现偏差。而在不存在LOS径，即只有NLOS径的情况下，首径时延无法准确反映接收机和发送机间的几何距离，时延估计精度会急剧下降，导致最终定位解算精度也相应变差。也就是说，当使用只有NLOS径或者存在LOS径但莱斯因子很低的情况下的时延测量值进行定位时，定位精度会严重下降，无法满足定位精度要求。
为了解决上述问题，本申请实施例提供了终端定位方法及装置，其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
如图1所示，为本公开实施例提供的终端定位方法的流程示意图，应用于接收端设备，包括：
步骤101：接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；
需要说明的是，接收端设备可以是终端，本实施例中具体是指目标终端；接收端设备还可以是接入网设备，本实施例中具体是指TRP。
这里，接收端设备为目标终端时，第一参考信号配置信息为PRS(Positioning Reference Signal，定位参考信号)配置信息，第一参考信号为PRS。其中，PRS配置信息由TRP通过LMF实体，转发给该目标终端；PRS由TRP发送给该目标终端。
接收端设备为接入网设备，如TPR时，第一参考信号配置信息为SRS(Sounding Reference Signal，探测参考信号)配置信息，第一参考信号为SRS。其中，SRS配置信息由目标终端通过LMF实体转发给TRP；SRS由目标终端发送给TRP。
步骤102：接收端设备获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
需要说明的是，接收端设备为目标终端时，发射端设备为接入网设备，此时对应下行定位场景；接收端设备为接入网设备，发射端设备为目标终端，此时对应上行定位场景。
可选地，所述测量值包括时间测量值、角度测量值或相位测量值。
其中，时间测量值包括接收端设备与发射端设备之间的时延测量值，或者收发时间差。
需要说明的是，若所述测量值为接收端设备与发射端设备之间的时延测量值，则该接收端设备与发射端设备之间的时延测量值基于第一参考信号配置信息以及与其对应的第一参考信号得到。
这里，若所述测量值为收发时间差，该定位场景为RTT(Round Trip Time，往返程时间)定位场景，该收发时间差包括第一收发时间差和第二收发时间差，其中，第一收发时间差为所述接收端设备为目标终端时，PRS的接收时刻与SRS的发送时刻之差；第二收发时间差为所述接收端设备为接入网设备时，SRS的接收时刻与PRS的发送时刻之差。
步骤103：接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者接收端设备根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
本步骤中，核心网设备指的是LMF实体。
若接收端设备为接入网设备；或者，接收端设备为目标终端，且该目标终端是UE_assisted，则将所述NLOS/LOS识别信息和所述测量值发送至核心网设备。
若接收端设备为目标终端，且该目标终端是UE_based，则该终端自身可根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，也就是UE侧自身可完成定位解算。
本公开实施例的终端定位方法，接收端设备通过获取第一参考信号配置信息以及与其对应的第一参考信号；获得NLOS/LOS识别信息和测量值，所述NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；将所述NLOS/LOS识别信息和所述测量值发送至核心网设备， 以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
作为一可选的实现方式，步骤102中，接收端设备获得NLOS/LOS识别信息，包括：
根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
其中，所述目标度量参数包括下述中的至少一项：
时域度量参数；
频域度量参数；
空域度量参数。
需要说明的是，目标度量参数为能够反映接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度的参数。
这里，目标度量参数包括但不限于上述中的至少一项。其中，时域度量参数可为时域莱斯因子，频域度量参数可为频域方差，空域度量参数可为空域一致性因子。当然还可以包括其他度量参数，比如重合度、峰形值、峰均比系数等。
基于此，作为一可选的实现方式，在上述实现方式中，根据所述第一参考信号配置信息和所述第一参考信号，得到时域度量参数的函数值，包括：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
具体的，接收端设备为目标终端时，根据PRS配置信息和PRS，获得CIR；接收端设备为接入网设备时，根据SRS配置信息和SRS，获得CIR。
根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符 号的莱斯因子；
需要说明的是，不同天线间可以理解为接收端设备的天线与发射端设备的天线之间，其中，接收端设备的各天线与发射端设备的各天线之间的对应关系不唯一。
对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
这里，可选地，第一预设函数运算为均值运算或者加权滤波运算。当然不仅限于上述两种运算，还可以是其他运算，而且如有需要还可以进行线性化。
作为另一可选的实现方式，在上述实现方式中，根据所述第一参考信号配置信息和所述第一参考信号，得到频域度量参数的函数值，包括：
基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
具体的，接收端设备为目标终端时，根据PRS配置信息和PRS进行时延估计；接收端设备为接入网设备时，根据SRS配置信息和SRS进行时延估计。
需要说明的是，可采用多种时延估计算法，进行时延估计。比如，MUSIC(Multiple Signal Classification，多信号分类)算法、相关算法、ML(Maximum Likelihood，最大似然)算法。
根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；
这里，采用第一预设方式处理CIR，其目的是为了去除CIR中该时延估计值的影响，保证第一径(首径)的相对时延为0。第一预设方式可以为循环移位。当然不仅限于上述方式，其他能够去除延时值影响的方式均可，这里不做具体限定。
这里，可选地，第二预设函数运算为均值运算或者加权滤波运算。当然不仅限于上述两种运算，还可以是其他运算。
或者，根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
这里，采用第二预设方式处理CFR，其目的是为了去除CFR中该时延估计值的影响，保证第一径(首径)的相对时延为0。第二预设方式可以为频域补偿。当然不仅限于上述方式，其他能够去除延时值影响的方式均可，这里不做具体限定。
这里，可选地，第三预设函数运算为均值运算或者加权滤波运算。当然不仅限于上述两种运算，还可以是其他运算。
作为又一可选的实现方式，在上述实现方式中，根据所述第一参考信号配置信息和所述第一参考信号，得到空域度量参数的函数值，包括：
根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
需要说明的是，上述根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值的三个实现方式，是基于目标度量参数为单个度量参数情况，当然，还可以对上述实现方式进行任意两者组合，或者三者组合，从而实现对应目标度量参数为两个度量参数和三个度量参数的情形。
上述实现方式中得到了目标度量参数的函数值，而如何根据目标度量参数的函数值，生成NLOS/LOS识别信息，下述中的实现方式可解决该问题。其中，作为一可选的实现方式，根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息，包括：
将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
本步骤中，可将各接入网设备对应的目标度量参数的函数值进行归一化处理，得到目标数值；
这里，各接入网设备对应的目标度量参数的函数值具体指的是各接入网设备，比如各TRP与目标终端之间的链路所对应的目标度量参数的函数值。
若接收端设备为目标终端，则各接入网设备可为各非参考接入网设备。其中，测量值为接收端设备与发射端设备之间的时延测量值时，NLOS/LOS识别信息可以是针对某个TRP获取的每个绝对测量值，也可以针对非参考TRP与参考TRP之间的每个相对测量差值，即TDOA。
在接收端设备为接入网设备，且测量值为接收端设备与发射端设备之间的时延测量值时，时延测量值指的是各个TRP的上行TOA测量值，NLOS/LOS识别信息是针对每个TRP单独测量获得的绝对值。
或者，将所述测量值对应的目标度量参数的函数值进行归一化处理，得到目标数值。
这里，所述测量值对应的目标度量参数的函数值具体指的是接入网设备，如TRP，与目标终端之间的链路上的多个测量值对应的目标度量参数的函数值。
基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
本步骤具体可包括：
将各目标数值乘以相应的权值系数，得到所述NLOS/LOS识别信息。
需要说明的是，权值系数的大小由目标数值对应的度量参数的重要程度决定。
需要说明的是，若目标数值对应的是各接入网设备对应的目标度量参数的函数值归一化后的数值，则NLOS/LOS识别信息用于表征接收端设备与发射端设备之间链路的可靠性程度。
若目标数值对应的是测量值对应的目标度量参数的函数值归一化后的数值，则NLOS/LOS识别信息用于表征接收端设备与发射端设备之间链路对应的测量值的可靠性程度。
在一示例中，若目标度量参数包括时域莱斯因子、频域方差和空域一致性因子，则将各接入网设备对应的时域莱斯因子、频域方差倒数和空域一致性因子进行归一化处理，得到K i、L i、S i，其中i＝1…M-1，M为接入网设备 总数。
这里，K i、L i、S i均为介于0和1之间的数值，其中，K i为接入网设备i对应的时域莱斯因子归一化后的数值，L i为接入网设备i对应的频域方差倒数归一化后的数值，S i为接入网设备i对应的空域一致性因子归一化后的数值。
根据对于时域莱斯因子、频域方差、空域一致性这三个维度的重要性衡量，给予对应的权值系数a i、b i、c i，得到NLOS/LOS识别信息Indicator i。具体的，Indicator i＝a i*K i+b i*L i+c i*S i
作为另一可选的实现方式，根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息，包括：
在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；
这里，目标度量参数的函数值可以先进行归一化处理，再与预设门限值进行比较。
在一示例中，若目标度量参数包括时域莱斯因子、频域方差和空域一致性因子，为不同的度量参数设置相对应的门限值。比如，对于归一化莱斯因子对应的K i、归一化方差倒数对应的L i、归一化空域一致性因子对应的S i，设定对应门限为TH K、TH L、TH S，即
Figure PCTCN2022083314-appb-000001
最终得到NLOS/LOS识别信息Indicator i，其值为1或0，0表示NLOS，1表示LOS。
这里，&表示且的关系。
或者，将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
需要说明的是，预设顺序可以是从大到小的顺序。这里，预设条件为按照从大到小的顺序排序位置靠前的接入网设备或测量值，将对应的 NLOS/LOS识别信息设置为1，否则NLOS/LOS识别信息设置为0。
本公开实施例的终端定位方法，接收端设备通过获取第一参考信号配置信息以及与其对应的第一参考信号；获得NLOS/LOS识别信息和测量值，所述NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
如图2所示，为本公开实施例提供的终端定位方法的流程示意图，应用于核心网设备，包括：
步骤201：核心网设备收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
需要说明的是，接收端设备可以是终端，本实施例中具体是指目标终端；接收端设备还可以是接入网设备，本实施例中具体是指TRP。
这里，可选地，核心网设备为LMF实体。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
需要说明的是，接收端设备为目标终端时，发射端设备为接入网设备，此时对应下行定位场景；接收端设备为接入网设备，发射端设备为目标终端，此时对应上行定位场景。
可选地，所述测量值包括时间测量值、角度测量值或相位测量值。
其中，时间测量值包括接收端设备与发射端设备之间的时延测量值，或者收发时间差。
这里，若所述测量值为收发时间差，该定位场景为上行+上行定位场景，该收发时间差包括第一收发时间差和第二收发时间差，其中，第一收发时间差为所述接收端设备为目标终端时，PRS的接收时刻与SRS的发送时刻之差；第二收发时间差为所述接收端设备为接入网设备时，SRS的接收时刻与PRS 的发送时刻之差。
步骤202：核心网设备根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
本公开实施例的终端定位方法，通过核心网设备收到接收端设备发送的NLOS/LOS识别信息和测量值；根据所述NLOS/LOS识别信息和所述测量值，对目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
作为一可选的实现方式，步骤202，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，可包括：
根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
这里，若NLOS/LOS识别信息对应接收端设备与发射端设备之间链路对应的测量值，则对每个接入网设备按照NLOS/LOS识别信息对其对应的多个测量值进行排序，选择对应NLOS/LOS识别信息最大，之后，将各个接入网设备对应的NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备及其对应的测量值。
若NLOS/LOS识别信息表征接收端设备与发射端设备之间链路的可靠性程度，则按照取值由大到小的顺序，确定排在前面的N个接入网设备。
确定出所述N个接入网设备中各个接入网设备所对应的测量值；
基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；
需要说明的是，将NLOS/LOS识别信息作为所确定的各个接入网设备所对应的测量值构造方程的加权值，增加可靠测量值的作用，减小不可靠测量值的影响。
或者，基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
这里，第一预设定位优化算法可以为最小残差法、RAIM(Receiver  Autonomous Integrity Monitoring，接收机自体完好性监控)、RANSAC(Random sample consensus，随机抽样一致)算法等。采用第一预设定位优化算法，对目标终端进行定位，能够进一步提升定位的准确性。
作为一可选的实现方式，步骤202，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，可包括：
确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；
或者，基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
这里，第二预设定位优化算法可以为最小残差法、RAIM、RANSAC算法等。采用第二预设定位优化算法，对目标终端进行定位，能够进一步提升定位的准确性。
这里，根据NLOS/LOS识别信息，挑选出取值为1的测量值，所挑选出的测量值都具备较高的可靠性，基于此进行终端定位，可以得到较高的定位精度。
本公开实施例的终端定位方法，通过核心网设备收到接收端设备发送的NLOS/LOS识别信息和测量值；根据所述NLOS/LOS识别信息和所述测量值，对目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
下面就以下实施例，具体说明终端定位方法的实施过程。
实施例一对应下行定位场景，TOA测量算法为MUSIC算法的情况
这里，下行定位场景中，UE作为接收端设备，TRP作为发射端设备。
UE侧
步骤1：接收LMF实体发送的PRS配置信息；
需要说明的是，TPR将PRS配置信息通过LMF实体转发给UE。
步骤2：接收下行PRS，并根据PRS配置信息和下行PRS，获得UE与 TRP之间的时延测量值和NLOS/LOS识别信息；
其中，根据PRS配置信息和下行PRS，获得NLOS/LOS识别信息可通过以下步骤实现：
步骤2.1：根据PRS配置信息和下行PRS，获取CIR；并根据CIR得到UE与TRP之间的各径间的能量关系，计算得到4根天线、14个符号的CIR的莱斯因子平均值；
步骤2.2：基于PRS配置信息和下行PRS进行MUSIC时延估计，得到时延估计值；
步骤2.3：根据时延估计值，对CIR进行循环移位，以去除CIR中该时延估计值的影响；
这里，对CIR进行循环移位其目的是为了去除CIR中该时延估计值的影响，保证第一径的相对时延为0。
步骤2.4：重新获取CIR，进行功率归一化，并通过时频转换获得不同天线间各符号的CFR，计算4根天线、14个符号的CFR中各子载波方差的平均值；
步骤2.5：根据莱斯因子平均值和方差均值的倒数，按照下述软判决方式生成NLOS/LOS识别信息。
对各非参考TRP的莱斯因子均值以及方差均值的倒数进行归一化；
具体的，找到非参考TRP对应的莱斯因子均值最大值以及方差均值的倒数的最大值，使所有非参考TRP对应的莱斯因子均值以及方差均值的倒数分别除以对应的最大值，得到介于0和1之间的数值；分别为K i和L i，i＝1…18。根据对于时域莱斯因子和频域方差这两种维度的重要性衡量，给出对应的权值系数a i＝0.3和b i＝0.7，这样，得到NLOS/LOS识别信息Indicator i。
具体的，Indicator i＝a i*K i+b i*L i＝0.3*K i+0.7*L i
这里，权值系数如此设置的原因是，频域方差决定了该链路是LOS还是NLOS，相比莱斯因子更为重要。
步骤3：将时延测量值和NLOS/LOS识别信息发送给LMF。
这里，时延测量值可为TDOA，即针对非参考TRP和参考TRP到UE的时间差，NLOS/LOS识别信息可以是针对每个TRP单独测量获取的绝对值， 也可以是非参考TRP和参考TRP之间的相对差值。
对应LMF侧的步骤
向UE发送PRS配置信息；接收UE发送的时延测量值和NLOS/LOS识别信息，并基于UE发送的时延测量值和NLOS/LOS识别信息进行UE位置解算。
具体的，根据NLOS/LOS识别信息Indicator i，i＝1…18，选择其中Indicator i最大的6个TRP测量值进行解算，并将Indicator i作为所用这6个TRP时延测量值构造方程的加权值，进行位置解算。
这样通过给低可靠性测量方程设置低权值，降低由于该测量误差带来的影响，提高定位精度。
对应TRP侧的步骤
将PRS配置信息通过LMF转发给UE；向UE发送PRS。
实施例二对应下行定位场景，TOA测量算法为ML算法的情况
步骤11：接收LMF实体发送的PRS配置信息；
需要说明的是，TPR将PRS配置信息通过LMF实体转发给UE。
步骤12：接收下行PRS，并根据PRS配置信息和下行PRS，获得UE与TRP之间的时延测量值和NLOS/LOS识别信息；
其中，根据PRS配置信息和下行PRS，获得NLOS/LOS识别信息可通过以下步骤实现：
步骤12.1：根据PRS配置信息和下行PRS，获取CIR；并根据CIR得到UE与TRP之间的各径间的能量关系，计算得到4根天线、14个符号的CIR的莱斯因子平均值；
步骤12.2：基于PRS配置信息和下行PRS进行ML时延估计，得到时延估计值；
步骤12.3：根据时延估计值，对CIR进行循环移位，以去除CIR中该时延估计值的影响。
这里，对CIR进行循环移位其目的是为了去除CIR中该时延估计值的影响，保证第一径的相对时延为0。
步骤12.4：重新获取CIR，进行功率归一化，并通过时频转换获得不同 天线间各符号的CFR，计算4根天线、14个符号的CFR中各子载波方差的平均值；
步骤12.5：根据莱斯因子平均值和方差均值的倒数，按照下述硬判决方式生成NLOS/LOS识别信息。
对各个评价指标制定相应判定门限。如对于归一化莱斯因子K i和方差倒数L i，设定对应门限为TH K＝5和TH L＝0.8，即
Figure PCTCN2022083314-appb-000002
最终得到NLOS/LOS识别信息Indicator i，其值为0或1，0代表NLOS，1代表LOS。
除了上面的判别公式，也可以将归一化莱斯因子K i、归一化方差倒数L i、归一化一致性因子S i分别按照从大到小排序，在这三组序列中合理选择N个链路，将其NLOS/LOS识别信息设为1。
步骤13：将将时延测量值和NLOS/LOS识别信息发送给LMF。
这里，时延测量值可为TDOA，即针对非参考TRP和参考TRP到UE的时间差，NLOS/LOS识别信息可以是针对每个TRP单独测量获取的绝对值，也可以是非参考TRP和参考TRP之间的相对差值。
对应LMF侧的步骤
向UE发送PRS配置信息；接收UE发送的时延测量值和NLOS/LOS指识别信息，并基于UE发送的时延测量值和NLOS/LOS识别信息进行UE位置解算。
具体的，根据NLOS/LOS识别信息，只挑选Indicator为1的TRP测量值进行RANSAC定位。当LOS情况较多时，通过NLOS/LOS识别信息挑选出来的测量值都具备较高的可靠性，可以得到较高的定位精度。
对应TRP侧的步骤
将PRS配置信息通过LMF转发给UE；向UE发送PRS。
实施例三对应上行定位场景，TOA测量算法为过采样相关算法的情况
这里，上行定位场景中，TRP作为接收端设备，UE作为发射端设备。
TRP侧
步骤21：接收LMF实体发送的SRS配置信息；
需要说明的是，UE将SRS配置信息通过LMF实体转发给TRP；
步骤22：接收上行SRS，并根据SRS配置信息和上行SRS，获得UE与TRP之间的时延测量值和NLOS/LOS识别信息；
其中，根据SRS配置信息和上行SRS，获得UE与TRP之间的时延测量值和NLOS/LOS识别信息可通过以下步骤实现：
步骤22.1：根据SRS配置信息和上行SRS，获得CIR；并根据CIR得到UE与TRP之间的各径间的能量关系，计算得到4根天线、14个符号的CIR的莱斯因子平均值；
步骤22.2：基于SRS配置信息和上行SRS进行过采样相关时延估计，得到时延估计值；
步骤22.3：根据时延估计值，对CFR进行频域补偿，以去除CFR中该时延估计值的影响；
这里，对CFR进行频域补偿其目的是为了去除SRS中该时延估计值的影响，保证第一径的相对时延为0。
步骤22.4：重新获取CIR，进行功率归一化，并通过时频转换获得不同天线间各符号的CFR，计算4根天线、14个符号的CFR中各子载波方差的平均值；
步骤22.5：根据莱斯因子平均值、方差均值的倒数、空域一致性因子，按照下述软判决方式生成NLOS/LOS识别信息。
对各非参考TRP的莱斯因子均值、方差均值的倒数以及空域一致性因子进行归一化；
具体的，找到非参考TRP对应的莱斯因子均值最大值、方差均值的倒数的最大值以及空域一致性因子的最大值，使所有非参考TRP对应的莱斯因子均值、方差均值的倒数以及空域一致性因子分别除以对应的最大值，得到介于0和1之间的数值；分别为K i、L i、S i，i＝1…18。根据对于时域莱斯因子、频域方差、空域一致性因子这三个维度的重要性衡量，给出对应的权值系数a i＝0.3、b i＝0.6、c i＝0.1，这样，得到NLOS/LOS识别信息Indicator i。
具体的，Indicator i＝a i*K i+b i*L i+c i*S i＝0.3*K i+0.6*L i+0.1*S i
这里，权值系数如此设置的原因是，频域方差决定了该链路是LOS还是NLOS，相比莱斯因子更为重要，而空域一致性因子对于判断的作用较小。
步骤23：将时延测量值和NLOS/LOS识别信息发送给LMF。
这里，上行TOA测量值指的是指的是各个TRP的上行TOA测量值，NLOS/LOS识别信息是针对每个TRP单独测量获取的绝对值。
对应LMF侧步骤
向TRP发送SRS配置信息；接收TRP发送的时延测量值和NLOS/LOS识别信息，并基于TRP发送的时延测量值和NLOS/LOS识别信息进行UE位置解算。
具体的，根据NLOS/LOS识别信息Indicator i，i＝1…18，选择其中Indicator i最大的6个TRP测量值进行解算，并将Indicator i作为所用这6个TRP时延测量值构造方程的加权值，进行位置解算。
这样通过给低可靠性测量方程设置低权值，降低由于该测量误差带来的影响，提高定位精度。
对应UE侧的步骤
将SRS配置信息通过LMF转发给TRP；向TRP发送SRS。
实施例四对应RRT场景
UE侧
步骤31：接收LMF实体发送的PRS配置信息；
需要说明的是，TPR将PRS配置信息通过LMF实体转发给UE。
步骤32：接收下行PRS，获得PRS接收时刻和NLOS/LOS识别信息；
其中，获得NLOS/LOS识别信息可通过以下步骤实现：
步骤32.1：根据PRS配置信息和下行PRS，获取CIR；并根据CIR得到UE与TRP之间的各径间的能量关系，计算得到4根天线、14个符号的CIR的莱斯因子平均值；
步骤32.2：基于PRS配置信息和下行PRS进行相关时延估计，得到时延估计值；
步骤32.2：根据时延估计值，对CIR进行循环移位，以去除CIR中该时延估计值的影响。
这里，对CIR进行循环移位其目的是为了去除CIR中该时延估计值的影响，保证第一径的相对时延为0。
步骤32.4：重新获取CIR，进行功率归一化，并通过时频转换获得不同天线间各符号的CFR，计算4根天线、14个符号的CFR中各子载波方差的平均值；
步骤32.5：根据莱斯因子平均值和方差均值的倒数，按照下述硬判决方式生成NLOS/LOS识别信息。
比如，将归一化莱斯因子K i和归一化方差倒数L i分别按照从大到小排序，如图3和图4所示。这里，对应18个TRP。
图3和图4的第一行的数字表示TRP的编号；
图3中的第二行表示与各TRP对应的归一化莱斯因子K i，第三行表示按照从大到小排序后，对应的TRP的编号，比如第三行中的5排在第一位，表示TRP5对应的归一化莱斯因子K i最大。
图4中的第二行表示与各TRP对应的归一化方差倒数L i，第三行表示按照从大到小排序后，对应的TRP的编号。
之后，在这两组序列中，选取排在前面的5个链路，即TRP1、TRP5、TRP4、TRP6、TRP9，如将这五个TRP的NLOS/LOS识别信息设为1，其余的TRP的NLOS/LOS识别信息设为0。
步骤33：将SRS配置信息通过LMF转发给TRP；
步骤34：向TRP发送上行SRS；
这里，本步骤能够获取发送SRS的发送时刻，从而得到收发时间差。
步骤35，计算UE收发时间差，将UE收发时间差和NLOS/LOS识别信息发送给LMF实体。
这里，NLOS/LOS识别信息可以是针对每个TRP单独测量获取的绝对值，也可以是非参考TRP和参考TRP之间的相对差值。
TRP侧
步骤41：将PRS配置信号通过LMF实体转发给UE；
步骤42：向UE发送下行PRS；
本步骤能够获取发送PRS的发送时刻；
步骤43：接收LMF实体发送的SRS配置信息；
需要说明的是，UE将SRS配置信息通过LMF实体转发给TRP；
步骤44：接收上行SRS，获得SRS的接收时刻和NLOS/LOS识别信息；
其中，获得NLOS/LOS识别信息可通过以下步骤实现：
步骤44.1：根据SRS配置信息和上行SRS，获得CIR；并根据CIR得到UE与TRP之间的各径间的能量关系，计算得到4根天线、14个符号的CIR的莱斯因子平均值；
步骤44.2：基于SRS配置信息和上行SRS进行相关时延估计，得到时延估计值；
步骤44.3：根据时延估计值，对CFR进行频域补偿，以去除CFR中该时延估计值的影响；
这里，对CFR进行频域补偿其目的是为了去除CFR中中该时延估计值的影响，保证第一径的相对时延为0。
步骤44.4：重新获取CFR，进行功率归一化，计算4根天线、14个符号的CFR中各子载波方差的平均值；
步骤44.5：根据莱斯因子平均值和方差均值的倒数，按照下述硬判决方式生成NLOS/LOS识别信息。
比如，将归一化莱斯因子K i和归一化方差倒数L i分别按照从大到小排序，与UE侧过程相同。
选取TRP1、TRP5、TRP6、TRP9、TRP13，将这五个TRP的NLOS/LOS识别信息设为1，其余的TRP的NLOS/LOS识别信息设为0。
步骤45，计算TRP收发时间差，将TRP收发时间差和NLOS/LOS识别信息发送给LMF实体。
对应于LMF侧的步骤
向UE和TRP分别发送PRS配置信息和SRS配置信息；接收UE和TRP发送的UE收发时间差、TRP收发时间差和NLOS/LOS识别信息；并基于UE收发时间差、TRP收发时间差和NLOS/LOS识别信息进行UE位置解算。
具体的，可根据NLOS/LOS识别信息，只挑选UE和TRP上报的Indicator均为1的TRP测量值即TRP1、TRP5、TRP6、TRP9进行定位，或者直接使 用Indicator为1的所有TRP，利用RANSAC算法进行解算。当LOS情况较多时，通过NLOS/LOS识别信息挑选出来的测量值都具备较高的可靠性，可以得到较高的定位精度。
如图5所示，本公开实施例还提供了一种接收端设备，包括：存储器520、收发机500，处理器510：存储器520，用于存储程序指令；收发机500，用于在所述处理器510的控制下收发数据；处理器510，用于读取所述存储器520中的程序指令，用于执行以下操作：
获取第一参考信号配置信息以及与其对应的第一参考信号；
获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
通过收发机500将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
其中，在接收端设备为目标终端的情况下，参见图5，总线架构可以包括任意数量的互联的总线和桥，具体由处理器510代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机500可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口530还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器510负责管理总线架构和通常的处理，存储器520可以存储处理器510在执行操作时所使用的数据。
可选的，处理器510可以是CPU(中央处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可 编程逻辑器件)，处理器510也可以采用多核架构。
处理器510通过调用存储器存储的程序指令，用于按照获得的可执行指令执行本申请实施例提供的任一所述方法。处理器510与存储器720也可以物理上分开布置。
在接收端设备为接入网设备的情况下，此时，图5中除去用户接口530即可。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
其中，所述目标度量参数包括下述中的至少一项：
时域度量参数；
频域度量参数；
空域度量参数。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
可选地，所述处理器510用于读取所述存储器中的程序指令并执行以下操作：
在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述 预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
本公开实施例的接收端设备，通过获取第一参考信号配置信息以及与其对应的第一参考信号；获得NLOS/LOS识别信息和测量值，所述NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
如图6所示，本公开实施例还提供了一种终端定位装置，包括：
第一获取单元601，用于获取第一参考信号配置信息以及与其对应的第一参考信号；
第二获取单元602用于获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
第一发送单元603，用于将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者，
第一定位单元604，用于根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
可选地，所述第二获取单元602具体用于：
根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
其中，所述目标度量参数包括下述中的至少一项：
时域度量参数；
频域度量参数；
空域度量参数。
可选地，所述第二获取单元602具体用于：
根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
可选地，所述第二获取单元602具体用于：
基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
可选地，所述第二获取单元602具体用于：
根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
可选地，所述第二获取单元602具体用于：
将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
可选地，所述第二获取单元602具体用于：
在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
本公开实施例的终端定位装置，通过获取第一参考信号配置信息以及与其对应的第一参考信号；获得NLOS/LOS识别信息和测量值，所述NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机， 服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
在本公开的一些实施例中，还提供了一种处理器可读存储介质，所述处理器可读存储介质存储有程序指令，所述程序指令用于使所述处理器执行实现以下步骤：
获取第一参考信号配置信息以及与其对应的第一参考信号；
获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
该程序被处理器执行时能实现上述应用于如图1所示的接收端设备侧的方法实施例中的所有实现方式，为避免重复，此处不再赘述。
如图7所示，本公开实施例还提供一种核心网设备，包括：包括：存储器720、收发机700，处理器710：存储器720，用于存储计算机程序；收发机700，用于在所述处理器710的控制下收发数据；处理器710，用于读取所述存储器720中的计算机程序并执行以下操作：
通过所述收发机700收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位；
其中，在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器710代表的一个或多个处理器和存储器720代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等 之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机700可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器710负责管理总线架构和通常的处理，存储器720可以存储处理器710在执行操作时所使用的数据。
处理器710可以是中央处理器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
可选地，所述处理器710用于读取所述存储器中的计算机程序并执行以下操作：
根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
确定出所述N个接入网设备中各个接入网设备所对应的测量值；
基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；或者，
基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
可选地，所述处理器710用于读取所述存储器中的计算机程序并执行以下操作：
确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二 预设定位优化算法，对目标终端进行定位。
本公开实施例的核心网设备，通过收到接收端设备发送的NLOS/LOS识别信息和测量值；根据所述NLOS/LOS识别信息和所述测量值，对目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
如图8所示，本公开实施还提供了一种终端定位装置，包括：
第一接收单元801，用于收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
第二定位单元802，用于根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
可选地，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
可选地，所述第二定位单元802具体用于：
根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
确定出所述N个接入网设备中各个接入网设备所对应的测量值；
基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；或者，
基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
可选地，所述第二定位单元802具体用于：
确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
本公开实施例的终端定位装置，通过收到接收端设备发送的NLOS/LOS识别信息和测量值；根据所述NLOS/LOS识别信息和所述测量值，对目标终端进行定位，如此，定位解算端通过NLOS/LOS识别信息获知各个测量值的可靠性程度，从而筛选可靠性高的测量值进行位置解算，从而提升终端的定位精度，满足定位精度要求。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
在本公开的一些实施例中，还提供了一种处理器可读存储介质，所述处理器可读存储介质存储有程序指令，所述程序指令用于使所述处理器执行实现以下步骤：
收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
该程序被处理器执行时能实现上述应用于如图2所示的核心网设备侧的方法实施例中的所有实现方式，为避免重复，此处不再赘述。
本申请实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(General Packet Radio Service，GPRS)系统、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、高级长期演进(Long Term Evolution Advanced，LTE-A)系统、通用移动系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide interoperability for Microwave Access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本申请实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本申请实施例中并不限定。
本申请实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本申请实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(Long Term Evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本申请实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(Centralized Unit，CU)节点和分布单元(Distributed Unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (27)

  1. 一种终端定位方法，包括：
    接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；
    接收端设备获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
    接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，所述测量值和所述NLOS/LOS识别信息用于所述核心网设备，对目标终端进行定位；或者接收端设备根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
  2. 根据权利要求1所述的方法，其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
  3. 根据权利要求1所述的方法，其中，接收端设备获得NLOS/LOS识别信息，包括：
    根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
    根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
    其中，所述目标度量参数包括下述中的至少一项：
    时域度量参数；
    频域度量参数；
    空域度量参数。
  4. 根据权利要求3所述的方法，其中，根据所述第一参考信号配置信息和所述第一参考信号，得到时域度量参数的函数值，包括：
    根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
    根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
    对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域 莱斯因子的函数值。
  5. 根据权利要求3所述的方法，其中，根据所述第一参考信号配置信息和所述第一参考信号，得到频域度量参数的函数值，包括：
    根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR和信道频域响应CFR；
    基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
    根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
    根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
  6. 根据权利要求3所述的方法，其中，根据所述第一参考信号配置信息和所述第一参考信号，得到空域度量参数的函数值，包括：
    根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
    对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
  7. 根据权利要求3所述的方法，其中，根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息，包括：
    将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
    基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
  8. 根据权利要求3所述的方法，其中，根据所述目标度量参数的函数值， 生成所述NLOS/LOS识别信息，包括：
    在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
    将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
  9. 一种终端定位方法，包括：
    核心网设备收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
    核心网设备根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
  10. 根据权利要求9所述的方法，其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
  11. 根据权利要求9所述的方法，其中，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，包括：
    根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
    确定出所述N个接入网设备中各个接入网设备所对应的测量值；
    基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；或者，
    基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
  12. 根据权利要求9所述的方法，其中，根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位，包括：
    确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3， 且M为正整数；
    基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
    基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
  13. 一种接收端设备，包括：存储器、收发机，处理器：存储器，用于存储程序指令；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的程序指令并执行以下操作：
    接收端设备获取第一参考信号配置信息以及与其对应的第一参考信号；
    接收端设备获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
    接收端设备将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，所述测量值和所述NLOS/LOS识别信息用于所述核心网设备，对目标终端进行定位；或者接收端设备根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
  14. 根据权利要求13所述的接收端设备，其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
  15. 根据权利要求13所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    根据所述第一参考信号配置信息和所述第一参考信号，得到目标度量参数的函数值；
    根据所述目标度量参数的函数值，生成所述NLOS/LOS识别信息；
    其中，所述目标度量参数包括下述中的至少一项：
    时域度量参数；
    频域度量参数；
    空域度量参数。
  16. 根据权利要求15所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR；
    根据CIR，得到所述接收端设备与所述发射端设备之间不同天线间各符号的莱斯因子；
    对所述不同天线间各符号的莱斯因子进行第一预设函数运算，得到时域莱斯因子的函数值。
  17. 根据权利要求15所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    根据所述第一参考信号配置信息和所述第一参考信号，获得时域脉冲响应CIR和信道频域响应CFR；
    基于所述第一参考信号配置信息和所述第一参考信号进行时延估计，得到时延估计值；
    根据所述时延估计值，采用第一预设方式处理CIR，得到处理后的第一CIR；对所述第一CIR进行功率归一化，并将功率归一化后的第一CIR进行时频转换，得到所述接收端设备与所述发射端设备之间不同天线间各符号的信道频域响应CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第二预设函数运算，得到频域方差的函数值；或者，
    根据所述时延估计值，采用第二预设方式处理CFR，得到处理后的CFR，对所述处理后的CFR进行功率归一化，得到所述接收端设备与所述发射端设备之间不同天线间各符号的CFR中子载波间的方差，并对不同天线间各符号的CFR中子载波间方差进行第三预设函数运算，得到频域方差的函数值。
  18. 根据权利要求15所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    根据所述第一参考信号配置信息和所述第一参考信号，得到所述接收端设备与所述发射端设备之间不同天线间的CIR或CFR；
    对所述不同天线间的CIR或CFR进行一致性计算，得到空域一致性因子。
  19. 根据权利要求15所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    将目标度量参数的函数值进行归一化处理，得到目标数值，所述目标度 量参数的函数值包括各接入网设备对应的目标度量参数的函数值或者所述测量值对应的目标度量参数的函数值；
    基于所述目标数值，进行第四预设函数运算，生成所述NLOS/LOS识别信息。
  20. 根据权利要求15所述的接收端设备，其中，所述处理器用于读取所述存储器中的程序指令并执行以下操作：
    在所述目标度量参数的函数值大于预设门限值的情况下，确定对应的NLOS/LOS识别信息为1，在所述目标度量参数的函数值小于或者等于所述预设门限值的情况下，确定各接入网设备或所述测量值对应的NLOS/LOS识别信息为0；或者，
    将所述目标度量参数的函数值按照预设顺序排序后，将满足预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息设置为1，不满足所述预设条件的接入网设备或所述测量值对应的NLOS/LOS识别信息为0。
  21. 一种终端定位装置，包括：
    第一获取单元，用于获取第一参考信号配置信息以及与其对应的第一参考信号；
    第二获取单元，用于获得非视距NLOS/视距LOS识别信息和测量值，NLOS/LOS识别信息由所述第一参考信号配置信息以及与其对应的第一参考信号得到；
    第一发送单元，用于将所述NLOS/LOS识别信息和所述测量值发送至核心网设备，以使所述核心网设备根据所述测量值和所述NLOS/LOS识别信息，对目标终端进行定位；或者，
    第一定位单元，用于根据所述NLOS/LOS识别信息和所述测量值，对所述目标终端进行定位。
  22. 一种核心网设备，包括：存储器、收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    通过所述收发机收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
    根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
  23. 根据权利要求22所述的核心网设备，其中，所述NLOS/LOS识别信息用于表征所述接收端设备与发射端设备之间链路或链路对应的测量值的可靠性程度。
  24. 根据权利要求22所述的核心网设备，其中，所述处理器用于读取所述存储器中的计算机程序并执行以下操作：
    根据所述NLOS/LOS识别信息，按照取值由大到小的顺序，确定排在前面的N个接入网设备，N≥3，且N为正整数；
    确定出所述N个接入网设备中各个接入网设备所对应的测量值；
    基于各个接入网设备所对应的测量值构造测量方程，将各个接入网设备所对应的NLOS/LOS识别信息作为权值赋予至所构造的测量方程中，并基于加权后的测量方程，对目标终端进行定位；或者，
    基于各个接入网设备所对应的测量值以及各个接入网设备所对应的NLOS/LOS识别信息，采用第一预设定位优化算法，对目标终端进行定位。
  25. 根据权利要求22所述的核心网设备，其中，所述处理器用于读取所述存储器中的计算机程序并执行以下操作：
    确定NLOS/LOS识别信息为1的M个接入网设备所对应的测量值，M≥3，且M为正整数；
    基于NLOS/LOS识别信息为1的接入网设备所对应的测量值构造测量方程，并基于所构造的测量方程，对目标终端进行定位；或者，
    基于NLOS/LOS识别信息为1的接入网设备所对应的测量值，采用第二预设定位优化算法，对目标终端进行定位。
  26. 一种终端定位装置，包括：
    第一接收单元，用于收到接收端设备发送的非视距NLOS/视距LOS识别信息和测量值；
    第二定位单元，用于根据NLOS/LOS识别信息和所述测量值，对目标终端进行定位。
  27. 一种处理器可读存储介质，其中，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至8中任一 项所述的终端定位方法的步骤，或者，执行如权利要求9至12任一项所述的终端定位方法的步骤。
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