WO2023169253A1 - Procédé de communication et appareil - Google Patents

Procédé de communication et appareil Download PDF

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Publication number
WO2023169253A1
WO2023169253A1 PCT/CN2023/078669 CN2023078669W WO2023169253A1 WO 2023169253 A1 WO2023169253 A1 WO 2023169253A1 CN 2023078669 W CN2023078669 W CN 2023078669W WO 2023169253 A1 WO2023169253 A1 WO 2023169253A1
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WO
WIPO (PCT)
Prior art keywords
information
antenna ports
phase difference
phase
antenna
Prior art date
Application number
PCT/CN2023/078669
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English (en)
Chinese (zh)
Inventor
尚顺顺
刘江华
高鑫
刘梦婷
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023169253A1 publication Critical patent/WO2023169253A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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

Definitions

  • the embodiments of the present application relate to fields such as communication, and in particular, to a communication method and device.
  • the positioning capabilities of the fifth generation (5th generation, 5G) communication system meet the following requirements: for 80% of terminal devices, the level The positioning error is less than or equal to 50 meters, the vertical positioning error is less than or equal to 5 meters, and the end-to-end delay is less than 30 seconds; for demanding commercial terminal equipment, for 80% of terminal equipment, the horizontal positioning error is less than or equal to 3 meters (indoor) and 10 meters (outdoor), the vertical positioning error is less than or equal to 3 meters (indoor and outdoor), and the end-to-end delay is less than 1 second.
  • 3GPP 3rd generation partnership project
  • Embodiments of the present application provide a communication method and device to improve the accuracy of positioning terminal equipment.
  • a communication method is provided.
  • the execution subject of the method may be a first device or a component applied in the first device, such as a chip, a processor, etc.
  • the following description takes the execution subject being the first device as an example.
  • the first device measures the reference signal from the second device to obtain phase information; the phase information is used for positioning.
  • the first device then sends the phase information to the network element.
  • the phase information includes, but is not limited to: a weighted average of phase differences between antenna ports in at least two antenna ports, and/or a phase difference between a reference antenna port and a non-reference antenna port in at least two antenna ports; Wherein, the at least two antenna ports are at least two antenna ports in the first device or the second device.
  • the first device is a terminal device, and the second device is an access network device; for another example, the first device is an access network device, and the second device is a terminal device.
  • the phase information can be used for one or more of artificial intelligence (AI) positioning, fingerprint positioning, or multipath-assisted positioning.
  • AI artificial intelligence
  • fingerprint positioning fingerprint positioning
  • multipath-assisted positioning multipath-assisted positioning
  • the first device determines the weighted average of the phase differences between the antenna ports and/or the phase difference between the reference antenna port and the non-reference antenna port through the phases of at least two antenna ports, and calculates the weighted average of the phase differences between the antenna ports.
  • the value and/or the phase difference between the reference antenna port and the non-reference antenna port is sent to the network element so that the network element adopts the antenna port.
  • the terminal device is positioned using the weighted average of the phase differences between the ports and/or the phase difference between the reference antenna port and the non-reference antenna port, thereby achieving accurate positioning of the terminal device.
  • phase information i.e., the weighted average of the phase differences between antenna ports and/or the phase difference between the reference antenna port and the non-reference antenna port
  • the value is used as a fingerprint feature for AI positioning.
  • the phases of at least three antenna ports are required to estimate the angle information.
  • the weighted average of the phase differences between the antenna ports and the phase difference between the reference antenna port and the non-reference antenna port in this application require The phases of at least two antenna ports are sufficient. Compared with using angle estimates as fingerprint features for AI positioning, the requirement for the number of antenna ports is reduced. In addition, compared with reporting the phase difference between antenna ports, reporting the weighted average of the phase difference between antenna ports reduces the amount of reporting, which can save signaling overhead. The weighted average of phase differences can further suppress the impact of noise on fingerprint features.
  • the weighted average of the phase differences between the antenna ports is the weighted average of the phase differences between adjacent antenna ports.
  • the threshold is a real number greater than 0.
  • the value of the threshold can be ⁇ /2 or ⁇ , or it can have other values, where ⁇ is the carrier wavelength.
  • adjacent antenna ports correspond to the same antenna direction. It can be understood that for each weighted average of the phase difference, the antenna port corresponding to the phase used to determine the weighted average of the phase difference corresponds to the same antenna direction. Taking into account the weighted average of the phase differences in multiple antenna directions, the accuracy of positioning can be improved. By averaging or weighting the phase differences in the same antenna direction, the amount of fingerprint feature data is reduced, reducing the complexity of AI positioning without reducing the accuracy of AI positioning.
  • the phase corresponding to each of the at least two antenna ports includes a phase corresponding to at least one path
  • the weighted average is a weighted average on the same path. Taking into account the weighted average of the phase differences on multiple paths, the accuracy of positioning can be improved.
  • the phase corresponding to each of the at least two antenna ports includes a phase corresponding to at least one path, and the phase difference between the reference antenna port and the non-reference antenna port is the same path. phase difference on. Taking into account the phase difference between the reference antenna port and the non-reference antenna port on multiple paths, the positioning accuracy can be improved.
  • the first device sends first information to the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase difference.
  • the first device notifies the network unit of the correlation between the weighted average of the phase difference and the antenna direction through the first information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the first device may also receive first information from the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase difference. It can be understood that the first information indicates one or more antenna directions, and the antenna directions are used by the first device to determine a weighted average of the phase differences.
  • the network unit tells the first device to determine the weighted average of the phase differences in which antenna direction or directions through the first information. In this way, when the first device measures the reference signal from the second device, it can measure the reference signal from the second device based on the first information (ie, the antenna direction indicated by the first information).
  • the first device may also receive second information from the second device or the network unit, the second information indicating the antenna spacing ratio of the second device, and the Antenna spacing ratio is used to determine The weight value of the phase difference between adjacent antenna ports, and the at least two antenna ports are antenna ports in the second device. After the weight value of the phase difference between adjacent antenna ports is determined, the weighted average value of the phase difference between adjacent antenna ports can be determined more accurately, so as to more accurately determine the location of the terminal device.
  • the first device may also send third information to the network unit, the third information indicating the path corresponding to the weighted average of the phase difference between the antenna ports and/or the The path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the first device notifies the network unit of the path information through the third information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the first device may also receive third information from the network unit, the third information indicating the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port; the first device measuring the reference signal from the second device includes: the first device measuring the reference signal from the second device based on the third information. reference signal for measurement.
  • the third information indicates one or more paths, which are used by the first device to determine a weighted average of phase differences between antenna ports and/or a phase difference between a reference antenna port and a non-reference antenna port.
  • the network unit uses the third information to tell the first device to determine the weighted average of the phase differences on which path(s) and/or the phase difference between the reference antenna port and the non-reference antenna port. In this way, the first device pairs data from the second device.
  • the reference signal from the second device can be measured based on the third information (ie, the path indicated by the third information).
  • the first device may also send fourth information to the network unit, the fourth information indicating the reference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Antenna port. The first device notifies the network unit of the reference antenna port corresponding to each phase difference through the fourth information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the first device may also receive fourth information from the network unit, the fourth information indicating the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • Reference antenna port It can be understood that the fourth information is used to indicate one or more reference antenna ports, and the reference antenna ports are used to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the network unit uses the fourth information to tell the first device which antenna port or ports to use as the reference antenna port to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the first device is a terminal device
  • the terminal device may also send measurement capability information to the network unit, where the measurement capability information is used to indicate one of the following of the terminal device or Multiple capabilities: Whether it supports measuring the phase of multiple antenna ports, whether it supports measuring the phase difference between multiple antenna ports, whether it supports measuring the phase difference between a reference antenna port and a non-reference antenna port, whether it supports measuring the phase difference between adjacent antenna ports The weighted average of the phase difference, the number of measured antenna ports, the number of measured access network devices, the number of measured paths, and the number of measured antenna directions.
  • the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: supporting the measurement of phases of multiple antenna ports or not supporting measuring the phases of multiple antenna ports, supporting measuring the phase between multiple antenna ports.
  • the phase difference does not support measuring the phase difference between multiple antenna ports, supports measuring the phase difference between a reference antenna port and a non-reference antenna port, or does not support measuring the phase difference between a reference antenna port and a non-reference antenna port, or supports measuring adjacent
  • the weighted average of the phase difference between antenna ports or the weighted average of the phase difference between adjacent antenna ports is not supported, the number of measured antenna ports, the number of measured access network equipment, the number of measured paths, measured antennas The number of directions.
  • the terminal device reports its own capability information to the network unit, so that the network unit uses an appropriate method to locate the terminal device based on the capabilities supported by the terminal device.
  • the second aspect is an operation performed by the network unit side corresponding to the operation performed by the first device side of the first aspect.
  • a communication method is provided.
  • the execution subject of the method can be a network unit or a component applied in the network unit, such as a chip, a processor, etc.
  • the following description takes the execution subject being a network unit as an example.
  • the network unit receives phase information from the first device; then, the network unit uses the phase information to locate the terminal device.
  • the phase information is obtained by measuring the reference signal from the second device by the first device; the phase information includes: a weighted average of the phase differences between the antenna ports in at least two antenna ports, and/or, The phase difference between the reference antenna port and the non-reference antenna port in at least two antenna ports.
  • the at least two antenna ports are at least two antenna ports in the first device or the second device.
  • the first device is a terminal device, and the second device is an access network device; for another example, the first device is an access network device, and the second device is a terminal device.
  • the phase information can be used for one or more of artificial intelligence (AI) positioning, fingerprint positioning, or multipath-assisted positioning. That is, the network unit is based on artificial intelligence AI positioning, fingerprint positioning, or multipath assisted positioning, and uses the phase information to position the terminal device.
  • AI artificial intelligence
  • the weighted average of the phase differences between the antenna ports is the weighted average of the phase differences between adjacent antenna ports.
  • the threshold is a real number greater than 0.
  • the value of the threshold can be ⁇ /2 or ⁇ , or it can have other values, where ⁇ is the carrier wavelength.
  • adjacent antenna ports correspond to the same antenna direction. It can be understood that for each weighted average of the phase difference, the antenna port corresponding to the phase used to determine the weighted average of the phase difference corresponds to the same antenna direction.
  • the phase corresponding to each of the at least two antenna ports includes a phase corresponding to at least one path
  • the weighted average is a weighted average on the same path.
  • the phase corresponding to each of the at least two antenna ports includes a phase corresponding to at least one path, and the phase difference between the reference antenna port and the non-reference antenna port is the same path. phase difference on.
  • the network unit may also send first information to the first device, where the first information indicates the antenna direction corresponding to the weighted average of the phase difference. It can be understood that the first information indicates one or more antenna directions, and the antenna directions are used by the first device to determine a weighted average of the phase differences.
  • the network unit may also receive first information from the first device, where the first information indicates the antenna direction corresponding to the weighted average of the phase difference.
  • the network unit may also receive second information from the second device and send the second information to the first device, where the second information indicates the second information of the second device.
  • Antenna spacing ratio the antenna spacing ratio is used to determine the weight value of the phase difference between the adjacent antenna ports, and the at least two antenna ports are antenna ports in the second device.
  • the network unit may also send third information to the first device, where the third information indicates the path corresponding to the weighted average of the phase difference between the antenna ports and/or the The path corresponding to the phase difference between the reference antenna port and the non-reference antenna port. It can be understood that the third information indicates one or more paths, which are used by the first device to determine a weighted average of phase differences between antenna ports and/or a phase difference between a reference antenna port and a non-reference antenna port.
  • the network unit may also receive third information from the first device, the third information indicating the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the network unit may also send fourth information to the first device, the fourth information indicating the reference corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • Antenna port It can be understood that the fourth information is used to indicate one or more reference antenna ports, and the reference antenna ports are used to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the network unit may also receive fourth information from the first device, the fourth information indicating the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Reference antenna port.
  • the first device is a terminal device
  • the network unit may also receive measurement capability information from the terminal device, where the measurement capability information is used to indicate one of the following of the terminal device Or multiple capabilities: whether it supports measuring the phase of multiple antenna ports, whether it supports measuring the phase difference between multiple antenna ports, whether it supports measuring the phase difference between a reference antenna port and a non-reference antenna port, whether it supports measuring adjacent antenna ports
  • the measurement capability information is used to indicate one of the following of the terminal device Or multiple capabilities: whether it supports measuring the phase of multiple antenna ports, whether it supports measuring the phase difference between multiple antenna ports, whether it supports measuring the phase difference between a reference antenna port and a non-reference antenna port, whether it supports measuring adjacent antenna ports.
  • the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: supporting the measurement of phases of multiple antenna ports or not supporting measuring the phases of multiple antenna ports, supporting measuring the phase between multiple antenna ports.
  • the phase difference does not support measuring the phase difference between multiple antenna ports, supports measuring the phase difference between a reference antenna port and a non-reference antenna port, or does not support measuring the phase difference between a reference antenna port and a non-reference antenna port, or supports measuring adjacent
  • the weighted average of the phase difference between antenna ports or the weighted average of the phase difference between adjacent antenna ports is not supported, the number of measured antenna ports, the number of measured access network equipment, the number of measured paths, measured antennas The number of directions.
  • the differences between the third aspect and the first aspect include: in the first aspect, the first device determines the phase information and sends it to the network unit, and the network unit determines the location of the terminal device; in the third aspect, after the first device determines the phase information, It is up to the first device to determine the location of the terminal device without sending it to the network element.
  • a communication method is provided.
  • the execution subject of the method may be the first device or a component applied in the first device, such as a chip, a processor, etc.
  • the following description takes the execution subject being the first device as an example.
  • the first device measures the reference signal from the second device to obtain phase information; the phase information is used for positioning.
  • the first device uses the phase information to position the terminal device.
  • the phase information includes, but is not limited to: a weighted average of phase differences between antenna ports in at least two antenna ports, and/or a phase difference between a reference antenna port and a non-reference antenna port in at least two antenna ports; Wherein, the at least two antenna ports are at least two antenna ports in the first device or the second device.
  • the first device is a terminal device, and the second device is an access network device; for another example, the first device is an access network device, and the second device is a terminal device.
  • the phase information can be used for one or more of artificial intelligence (AI) positioning, fingerprint positioning, or multipath-assisted positioning.
  • AI artificial intelligence
  • fingerprint positioning fingerprint positioning
  • multipath-assisted positioning multipath-assisted positioning
  • the weighted average of the phase differences between the antenna ports is the weighted average of the phase differences between adjacent antenna ports.
  • the threshold is a real number greater than 0, for example
  • the value of the threshold can be ⁇ /2 or ⁇ , or it can have other values, where ⁇ is the carrier wavelength.
  • adjacent antenna ports correspond to the same antenna direction. It can be understood that for each weighted average of the phase difference, the antenna port corresponding to the phase used to determine the weighted average of the phase difference corresponds to the same antenna direction.
  • the phase corresponding to each of the at least two antenna ports includes a phase corresponding to at least one path
  • the weighted average is a weighted average on the same path.
  • the phase corresponding to each antenna port includes a phase corresponding to at least one path, and the phase difference between the reference antenna port and the non-reference antenna port is the same path. phase difference on.
  • the first device may also receive first information from the network unit, where the first information indicates an antenna direction corresponding to a weighted average of the phase difference between the antenna ports. It can be understood that the first information indicates one or more antenna directions, and the antenna directions are used by the first device to determine a weighted average of the phase differences.
  • the first device may also receive second information from the second device or the network unit, the second information indicating the antenna spacing ratio of the second device, and the The antenna spacing ratio is used to determine the weight value of the phase difference between the adjacent antenna ports, and the at least two antenna ports are antenna ports in the second device.
  • the first device may also receive third information from the network unit, the third information indicating the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port; the first device measuring the reference signal from the second device includes: the first device measuring the reference signal from the second device based on the third information. reference signal for measurement.
  • the third information indicates one or more paths, which are used by the first device to determine a weighted average of phase differences between antenna ports and/or a phase difference between a reference antenna port and a non-reference antenna port.
  • the first device may also receive fourth information from the network unit, the fourth information indicating the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • Reference antenna port It can be understood that the fourth information is used to indicate one or more reference antenna ports, and the reference antenna ports are used to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the first device is a terminal device
  • the terminal device may also send measurement capability information to the network unit, where the measurement capability information is used to indicate one of the following of the terminal device or Multiple capabilities: Whether it supports measuring the phase of multiple antenna ports, whether it supports measuring the phase difference between multiple antenna ports, whether it supports measuring the phase difference between a reference antenna port and a non-reference antenna port, whether it supports measuring the phase difference between adjacent antenna ports The weighted average of the phase difference, the number of measured antenna ports, the number of measured access network devices, the number of measured paths, and the number of measured antenna directions.
  • the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: supporting the measurement of phases of multiple antenna ports or not supporting measuring the phases of multiple antenna ports, supporting measuring the phase between multiple antenna ports.
  • the phase difference does not support measuring the phase difference between multiple antenna ports, supports measuring the phase difference between a reference antenna port and a non-reference antenna port, or does not support measuring the phase difference between a reference antenna port and a non-reference antenna port, or supports measuring adjacent
  • the weighted average of the phase difference between antenna ports or the weighted average of the phase difference between adjacent antenna ports is not supported, the number of measured antenna ports, the number of measured access network equipment, the number of measured paths, measured antennas The number of directions.
  • the terminal device reports its own capability information to the network unit so that the network unit can locate the terminal device based on the capabilities supported by the terminal device.
  • the first device may also receive AI network parameters from the network unit,
  • the AI network parameters are used for AI positioning.
  • AI network parameters such as the number of layers, the number of neurons, weight values and other network model parameters.
  • a communication method is provided.
  • the execution subject of the method may be a terminal device or a component used in the terminal device, such as a chip, a processor, etc.
  • the following description takes the execution subject being a terminal device as an example.
  • the terminal device measures the reference signal from the access network device to obtain the downlink angle of arrival.
  • the downlink angle of arrival is used to determine the attitude of the terminal device.
  • the terminal device sends the downlink angle of arrival to the network unit.
  • the downlink angle of arrival can be used for one or more of artificial intelligence AI pose determination, fingerprint pose determination, or multipath assisted pose determination.
  • the attitude of the terminal device has a wide range of uses. Generally, multiple antenna ports can be used to receive reference signals and measure the phase to estimate the UE attitude. This application proposes to use the downlink angle of arrival to determine the attitude of the terminal device, and proposes a new way of determining the attitude of the terminal device.
  • the measurement information i.e. phase
  • the downlink arrival angle is used as the fingerprint feature, and the AI network learns the relationship between the fingerprint features and the UE attitude, which can avoid inaccurate attitude determination in severe NLOS transmission environments.
  • the terminal device may also receive attitude information from the network unit, the attitude information indicating the attitude of the terminal device, and the attitude information being determined based on the downlink angle of arrival.
  • the downlink angle of arrival is determined based on phases of at least three antenna ports, and the phase corresponding to each of the at least three antenna ports includes a phase corresponding to at least one path.
  • the angle of arrival is the downlink angle of arrival on the same path, and the at least three antenna ports are antenna ports in the terminal device.
  • the terminal device sends fifth information to the network unit, where the fifth information indicates a path corresponding to the downlink angle of arrival.
  • the terminal device notifies the network unit of the path information through the fifth information, so that the network unit can more accurately determine the posture of the terminal device after knowing it.
  • the terminal device receives fifth information from the network unit, the fifth information indicating the path corresponding to the downlink arrival angle, which can be understood as the fifth information indicating one or more paths, and the path is used for
  • the terminal equipment determines the downlink angle of arrival.
  • the network unit uses the fifth information to tell the terminal device to determine the downlink angle of arrival on which path or paths. In this way, when the terminal device measures the reference signal from the access network device, it can based on the fifth information (i.e., the fifth The reference signal from the access network device is measured along the path indicated by the information.
  • the terminal device may also send measurement capability information to the network unit, where the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: whether to support measuring multiple The phase of the antenna port (can be replaced by supporting the measurement of the phase of multiple antenna ports or not supporting the measurement of the phase of multiple antenna ports), whether the measurement of the downlink angle of arrival is supported (can be replaced by supporting the measurement of the downlink angle of arrival or not supporting the measurement of the downlink angle of arrival) ), the number of measured antenna ports, the number of measured access network equipment, and the number of measured paths.
  • the terminal device reports its own capability information to the network unit so that the network unit adopts an appropriate method to determine the posture of the terminal device based on the capabilities supported by the terminal device.
  • the fifth aspect is the operation performed by the network unit side corresponding to the operation performed by the terminal device side of the fourth aspect.
  • the technical effects of the fifth aspect and any possible implementation may be referred to the technical effects of the fourth aspect and any possible implementation, and will not be repeated.
  • a communication method is provided.
  • the execution subject of the method may be a network unit or a component applied in the network unit, such as a chip, a processor, etc.
  • the following description takes the execution subject being a network unit as an example.
  • the network unit receives the downlink angle of arrival from the terminal device.
  • the downlink angle of arrival is obtained by the terminal device measuring the reference signal from the access network device; the network unit uses the downlink angle of arrival to determine the terminal device. posture.
  • the downlink angle of arrival can be used for one or more of artificial intelligence AI pose determination, fingerprint pose determination, or multipath assisted pose determination. That is, the network unit determines the posture of the terminal device based on artificial intelligence AI posture determination, fingerprint posture determination, or multi-path assisted posture determination, and the downlink arrival angle.
  • the network unit may also send attitude information to the terminal device, where the attitude information indicates the attitude of the terminal device, and the attitude information is determined based on the downlink angle of arrival.
  • the downlink angle of arrival is determined based on phases of at least three antenna ports, and the phase corresponding to each of the at least three antenna ports includes a phase corresponding to at least one path.
  • the angle of arrival is the downlink angle of arrival on the same path, and the at least three antenna ports are antenna ports in the terminal device.
  • the network device receives fifth information from the terminal device, where the fifth information indicates a path corresponding to the downlink arrival angle.
  • the terminal device notifies the network unit of the path information through the fifth information, so that the network unit can more accurately determine the posture of the terminal device after knowing it.
  • the network unit sends fifth information to the terminal device.
  • the fifth information indicates the path corresponding to the downlink arrival angle. It can be understood that the fifth information indicates one or more paths, and the path is used by the terminal.
  • the device determines the downward angle of arrival.
  • the network unit uses the fifth information to tell the terminal device to determine the downlink angle of arrival on which path or paths. In this way, when the terminal device measures the reference signal from the access network device, it can based on the fifth information (i.e., the fifth The reference signal from the access network device is measured along the path indicated by the information.
  • the network unit receives measurement capability information from a terminal device, and the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: whether to support measurement of multiple antenna ports. Phase (can be replaced by supporting the measurement of the phase of multiple antenna ports or not supporting the measurement of the phase of multiple antenna ports), whether the measurement of the downlink angle of arrival is supported (can be replaced by supporting the measurement of the downlink angle of arrival or not supporting the measurement of the downlink angle of arrival), measurement The number of antenna ports, the number of measured access network devices, and the number of measured paths.
  • the terminal device reports its own capability information to the network unit so that the network unit adopts an appropriate method to determine the posture of the terminal device based on the capabilities supported by the terminal device.
  • the differences between the sixth aspect and the fourth aspect include: in the fourth aspect, after the terminal equipment determines the downlink angle of arrival, it sends it to the network unit, and the network unit determines the posture of the terminal equipment; in the sixth aspect, after the terminal equipment determines the downlink angle of arrival, , without sending it to the network unit, the terminal device determines the posture of the terminal device.
  • the remaining technical details are similar or identical to the fourth aspect and any possible implementation, and the technical effects are also similar.
  • a communication method is provided.
  • the execution subject of the method may be a terminal device or a component used in the terminal device, such as a chip, a processor, etc.
  • the following description takes the execution subject being a terminal device as an example.
  • the terminal device measures the reference signal from the access network device to obtain the downlink angle of arrival.
  • the downlink angle of arrival is used to determine the attitude of the terminal device.
  • the terminal device uses the downward angle of arrival to determine the attitude of the terminal device.
  • the downlink angle of arrival can be used for one or more of artificial intelligence AI pose determination, fingerprint pose determination, or multipath assisted pose determination.
  • the terminal device may also send attitude information to the network unit, where the attitude information indicates the attitude of the terminal device, and the attitude information is determined based on the downlink angle of arrival.
  • the downlink angle of arrival is determined based on phases of at least three antenna ports, and the phase corresponding to each of the at least three antenna ports includes a phase corresponding to at least one path.
  • the angle of arrival is the downlink angle of arrival on the same path, and the at least three antenna ports are antenna ports in the terminal device.
  • the terminal device receives fifth information from the network unit, the fifth information indicating the path corresponding to the downlink arrival angle, which can be understood as the fifth information indicating one or more paths, and the path is used for
  • the terminal equipment determines the downlink angle of arrival.
  • the network unit uses the fifth information to tell the terminal device to determine the downlink angle of arrival on which path or paths. In this way, when the terminal device measures the reference signal from the access network device, it can based on the fifth information (i.e., the fifth The reference signal from the access network device is measured along the path indicated by the information.
  • the terminal device may also send measurement capability information to the network unit, where the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: whether to support measuring multiple The phase of the antenna port (can be replaced by supporting the measurement of the phase of multiple antenna ports or not supporting the measurement of the phase of multiple antenna ports), whether the measurement of the downlink angle of arrival is supported (can be replaced by supporting the measurement of the downlink angle of arrival or not supporting the measurement of the downlink angle of arrival) ), the number of measured antenna ports, the number of measured access network equipment, and the number of measured paths.
  • the terminal device reports its own capability information to the network unit so that the network unit adopts an appropriate method to determine the posture of the terminal device based on the capabilities supported by the terminal device.
  • a communication device which device has the function of implementing any of the above aspects and any possible implementation of any aspect. These functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more functional modules corresponding to the above functions.
  • a communication device including a processor, and optionally, a memory; the processor is coupled to the memory; the memory is used to store computer programs or instructions; the processor, For executing part or all of the computer programs or instructions in the memory, when the part or all of the computer programs or instructions are executed, in a method for implementing any of the above aspects and any possible implementation of any aspect. function.
  • the device may further include a transceiver, and the transceiver is configured to send signals processed by the processor, or receive signals input to the processor.
  • the transceiver may perform transmitting actions or receiving actions in any aspect and any possible implementation of any aspect.
  • the present application provides a chip system.
  • the chip system includes one or more processors (which may also be referred to as processing circuits), and the processors are electrically coupled to a memory (which may also be referred to as a storage medium).
  • the memory may be located in the chip system, or may not be located in the chip system; the memory is used to store computer programs or instructions; the processor is used to execute part or all of the memory Computer programs or instructions, when part or all of the computer programs or instructions are executed, are used to implement the functions in any of the above aspects and any possible implementation method of any aspect.
  • the chip system may also include an input-output interface (which may also be called a communication interface).
  • the input-output interface is used to output signals processed by the processor, or to receive input to the processor. signal to the processor.
  • the input and output interface can perform sending actions or receiving actions in any aspect and any possible implementation of any aspect. Specifically, the output interface performs the sending action, and the input interface performs the receiving action.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • a computer-readable storage medium for storing a computer program including instructions for implementing the functions of any aspect and any possible implementation of any aspect.
  • a computer-readable storage medium is used to store a computer program.
  • the computer program When executed by a computer, it can cause the computer to perform any of the above aspects and any possible implementation method of any aspect.
  • a computer program product includes: computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute any one of the above aspects and any one of the above aspects. Methods in possible implementations.
  • a communication system which communication system includes a first device that performs the above first aspect and the method in any possible implementation of the first aspect, and a first device that performs the above second aspect and the second aspect. Any possible implementation of the method in the network unit.
  • Figure 1 is a schematic structural diagram of a communication system provided in an embodiment of the present application.
  • Figure 2 is a schematic diagram of a ToA positioning method provided in the embodiment of the present application.
  • Figure 3a is a schematic diagram of AI network training and testing provided in the embodiment of this application.
  • Figure 3b is a schematic diagram of an antenna direction provided in an embodiment of the present application.
  • Figure 3c is a schematic diagram of a propagation path provided in the embodiment of the present application.
  • Figure 3d is a schematic diagram of an antenna spacing ratio provided in an embodiment of the present application.
  • Figure 4 Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, and Figure 13 are respectively a schematic diagram of a communication flow provided in the embodiment of the present application;
  • Figures 14 and 15 are respectively structural diagrams of a communication device provided in embodiments of the present application.
  • system architecture of the method provided by the embodiments of the present application will be briefly described below. It can be understood that the system architecture described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as satellite communication systems and traditional mobile communication systems.
  • the satellite communication system can be integrated with the traditional mobile communication system (ie, terrestrial communication system).
  • Communication systems such as: wireless local area network (WLAN) communication system, wireless fidelity (WiFi) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) ) system, LTE time division duplex (TDD),
  • the fifth generation (5G) system or new radio (NR), sixth generation (6th generation, 6G) system also support communication systems integrating multiple wireless technologies.
  • WLAN wireless local area network
  • WiFi wireless fidelity
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE time division duplex
  • 5G fifth generation
  • NR new radio
  • 6th generation, 6G system and other future communication systems also support communication systems integrating multiple wireless technologies.
  • NTN non-terrestrial networks
  • UAVs unmanned aerial vehicle
  • satellite communication systems such as UAV
  • FIG. 1 a schematic diagram of a positioning system suitable for this application is provided, including the following network elements or equipment:
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), terminal, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • terminal devices include handheld devices with wireless connection functions, vehicle-mounted devices, ship-mounted devices, etc.
  • terminal devices can be: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality (AR) equipment, wireless terminals (such as sensors, etc.) in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, intelligent Wireless terminals in the power grid (smart grid), wireless terminals in transportation safety (transportation safety), wireless terminals in the smart city (smart city), or wireless terminals in the smart home (smart home), or have vehicle-to-vehicle ( Vehicle-to-Vehicle (V2V), or vehicle to everything (V2X), or vehicle-to-vehicle long-term evolution technology (long term evolution vehicle) wireless terminal with LTE-V function, etc.
  • MID mobile internet devices
  • VR virtual reality
  • AR augmented reality
  • wireless terminals such as sensors, etc.
  • wireless terminals such as sensors, etc.
  • wireless terminals in industrial control wireless terminals in the power grid (smart
  • the terminal may include a terminal that supports user plane secure positioning ((secure user plane location, SUPL) enabled terminal, SET).
  • SUPL secure user plane location
  • eNB A device deployed in a wireless access network that meets 4G standards and provides wireless communication functions for UEs.
  • eNB can include various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, wearable devices, and vehicle-mounted devices.
  • the eNB can also be a transmission and reception point (TRP).
  • TRP transmission and reception point
  • gNB A device deployed in a wireless access network that meets 5G standards and provides wireless communication functions for UEs.
  • gNB can include various forms of macro base stations, micro base stations (also called small stations), relay stations, and access points. Wearable devices, vehicle-mounted devices.
  • gNB can also be a transmission and reception point (TRP), a transmission measurement function (TMF), and a gNB can include a central unit (CU) and a distributed unit integrated on the gNB. DU).
  • TRP transmission and reception point
  • TMF transmission measurement function
  • CU central unit
  • DU distributed unit integrated on the gNB.
  • the eNB and gNB in Figure 1 can be replaced by access network equipment.
  • the access network equipment can be, for example, a device with a random access function that can provide a terminal device or a chip that can be disposed in the device.
  • the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., can also be 5G, such as NR, gNB in the system , or, transmission point (TRP or TP), one or a group (including multiple
  • the access and mobility management function (AMF) network element is a control plane network element provided by the operator's network. It is responsible for access control and mobility management of terminal devices accessing the operator's network. For example, it includes Mobile status management, assigning user temporary identity, authentication and user functions. In future communication systems, the access management network element can still be an AMF network element, or it can also have other names, which is not limited in this application.
  • AMF access and mobility management function
  • the location management function (LMF) network element is a device or component deployed in the core network to provide positioning functions for terminal devices.
  • the terminal device may perform signal measurement on one or more access network devices, or one or more access network devices may perform signal measurement on the terminal device.
  • This measurement information can be converted into the distance between the terminal equipment and different access network equipment.
  • the positioning server knows the location of each access network device. The positioning server can determine the location of the terminal device based on these distances and other parameter information (such as direction).
  • Positioning methods are, for example, based on time of arrival (ToA), time difference of arrival (TDoA), and received signal strength (received signal strength, RSS), difference of received signal strength (DRSS), frequency of arrival (FoA), frequency difference of arrival (FDoA), angle of arrival (angle of arrival, AoA), etc.
  • ToA time of arrival
  • TDoA time difference of arrival
  • RSS received signal strength
  • DRSS difference of received signal strength
  • FoA frequency of arrival
  • FDoA frequency difference of arrival
  • angle of arrival angle of arrival
  • NLOS non-line of sight
  • the ToA positioning principle uses a multilateral (such as three-sided) measurement method by measuring the distances (d1, d2 and d3) from the UE to be positioned to three base stations (BS1, BS2 and BS3). achieve positioning. Draw a circle with the base station as the center and the measured distance between the UE and the base station as the radius. The intersection of the three circles is the position of the UE. When the measured distance between the UE and the base station deviates, the intersection point of multiple circles will not be the true position of the UE, thus introducing positioning errors.
  • a multilateral (such as three-sided) measurement method by measuring the distances (d1, d2 and d3) from the UE to be positioned to three base stations (BS1, BS2 and BS3). achieve positioning.
  • the intersection point of multiple circles will not be the true position of the
  • NLOS will introduce ranging errors, and its impact can be divided into two types: one is that the line of sight (LOS) path is blocked by obstacles Unable to receive, it can only measure the propagation distance of the NLOS path, but the distance of the NLOS path deviates from the real distance between the base station and the UE; the other is that the signals of the LOS path and the NLOS path can be received, but when the NLOS path is relative to the LOS When the delay difference between paths is small, the NLOS path and the LOS path may be distinguished incorrectly, which will lead to deviations in the LOS path ranging results. Especially in severe NLOS transmission environments, there are more NLOS paths and fewer LOS paths, so it is impossible to obtain enough The measurement information of the LOS path can be used by the ToA positioning method.
  • LOS line of sight
  • AI positioning technology In order to improve positioning accuracy in severe NLOS transmission environments, artificial intelligence (AI) positioning technology can be used for positioning.
  • AI positioning achieves positioning by learning the relationship between fingerprint features and UE position.
  • AI can calculate the UE position based on fingerprint features.
  • Fingerprint features refer to signal measurement information obtained by measuring signals. Fingerprint feature types include channel impulse response (channel impulse response, CIR), channel frequency response (channel frequency response, CFR), ToA, AoA, etc.
  • the principle of AI positioning is introduced, which can be divided into two stages: training and prediction, and the corresponding data is divided into training data and test data.
  • the training data includes fingerprint features and the corresponding real location of the UE.
  • Input the fingerprint features into the AI network to obtain the output result of the AI network (i.e., the position of the UE), and compare the output result with the real position of the UE to obtain the training error.
  • the AI model parameters are optimized based on the training error until the network reaches convergence. After the network converges, the trained AI network can be used to make predictions.
  • the AI network can output the corresponding prediction result of the UE position, that is, to achieve UE positioning. Based on the test results, the test error can be calculated and the performance of AI positioning can be statistically calculated.
  • the angle estimate can be used as a fingerprint feature for AI positioning.
  • algorithms such as multiple signal classification (MUSIC) need to be used to process the phases (such as carrier phases) received by multiple antenna ports to obtain angle estimates; then the angle estimates are used as fingerprint features for AI positioning.
  • MUSIC multiple signal classification
  • the complexity of estimating angle information using algorithms such as MUSIC is high, and in the process of estimating angle information from phase, there may be a loss of information, which reduces the amount of information in fingerprint features and degrades AI positioning performance.
  • this application proposes a variety of positioning methods with low complexity, no shortage of fingerprint information, and high positioning accuracy.
  • An antenna refers to a device that can effectively radiate electromagnetic waves to a specific direction in space or can effectively receive electromagnetic waves from a specific direction in space.
  • Antenna ports are: The channel experienced by one antenna port transmitting a symbol can be derived from the channel experienced by another symbol transmitted by the same antenna. Antenna ports may also be referred to as logical antenna ports.
  • the antenna port can correspond to a physical antenna
  • the location of the antenna port is the location of the physical antenna.
  • the position of the antenna port may be the geometric center position of all physical antennas, the position of a certain physical antenna, or the geometric center position of some physical antennas.
  • Antenna direction refers to the connection direction of the positions of two or more antenna ports, which can also be called the antenna port direction.
  • an example antenna direction diagram is provided, including three antenna panels.
  • the panel 3 is composed of at least two antenna ports, and the direction (H 3 ) where the positions of these antenna ports are connected is the antenna direction on the panel 3 .
  • Panel 1 and Panel 2 each include at least two antenna directions. Taking panel 1 as an example, the two antenna directions are the horizontal direction H 1 and the vertical direction V 1 . Of course, panel 1 can also have other antenna directions, such as other non-horizontal and non-vertical tilt directions.
  • the antenna directions in different panels belong to different antenna directions.
  • the H 2 direction and the H 1 direction belong to different antenna directions. Under the antenna setting shown in Figure 3b, there can be at least 5 different antenna directions, namely H 1 direction, H 2 direction, H 3 direction, V 1 direction, and V 2 direction.
  • Antenna spacing ratio refers to the ratio of the distance between adjacent antenna ports in a certain antenna direction. It can also be called the antenna port spacing ratio. For example, the distances between adjacent antenna ports in a certain antenna direction are recorded as d 1 , d 2 ,..., d N respectively, and the antenna spacing ratios are recorded as k 1 ⁇ k 2 ⁇ ...
  • the antenna spacing ratio is not scaled, k 1 ⁇ k 2 ⁇ ...:k N is d 1 , d 2 ,..., d N ; when the scaling coefficient is s, the antenna spacing ratio is sd 1 ⁇ sd 2 ⁇ ...sd N , of course it can also be divided by s; when the scaling factor is 1/d 1 , the antenna spacing ratio is The scaling factor is usually a real number greater than zero. When the antenna ports are equally spaced, the antenna spacing ratio is 1:1:...:1. Using the antenna spacing ratio, you can avoid exposing the actual distance between adjacent antenna ports. For example, the distances between adjacent antenna ports among the four antenna ports are 10cm, 12cm, and 16cm respectively. The antenna spacing ratio can be 10:12:16 (unscaled) or 5:6:8 (reduced by 2 times). ), or 1:6/5:8/5.
  • Path refers to the propagation path of the signal.
  • the UE transmits the signal and the base station BS receives the signal.
  • the signal transmitted from the UE reaches the BS through two paths.
  • One path is the line-of-sight (LOS) path, which means that the signal reaches the base station along the "line of sight" from the UE to the base station.
  • LOS line-of-sight
  • the other path passes through the reflective surface and reaches the BS. Since it reaches the BS along the "non-line-of-sight" direction, it is called the non-line-of-sight (NLOS) path.
  • NLOS non-line-of-sight
  • Paths can include multiple types, such as LOS paths, NLOS paths, paths with the shortest delay (also called the first path), paths with the strongest reference signal received power/strength, and paths with the highest power/strength ranking (usually with higher power/strength). The higher the delay, the higher the ranking) and the path of the delay (usually the smaller the delay, the higher the ranking).
  • the terminal device can receive reference signals from multiple access network devices.
  • the reference signal can reach the terminal device through multiple paths.
  • the reference signal corresponding to the first received by the terminal device The path is the path with the shortest delay.
  • the path with the strongest reference signal reception power received by the terminal equipment is the path with the strongest reference signal reception power.
  • multiple access network devices can receive reference signals from the terminal, and the same is true for any access network device receiving the reference signal sent by the terminal.
  • Fingerprint positioning method Before positioning, the UE location area is divided into multiple grids in advance, and fingerprint feature information is collected at the location of each grid to build a fingerprint database. In the positioning stage, the fingerprint feature information is extracted from the received signal and matched with the fingerprint data on different grids in the fingerprint database. The position corresponding to the grid with the highest similarity is the result of fingerprint positioning. Fingerprint positioning is similar, but the positioning is changed to positioning, and the details will not be repeated.
  • Multipath assisted positioning method refers to using the measurement information of multipath signals to achieve UE positioning.
  • a feasible multipath assisted positioning method is to measure the DL-AOA, UL-AOD, propagation duration, propagation duration difference between multiple paths and other measurement information of the multi-path signals between the base station and the UE, and combine it with the UE's posture to achieve positioning.
  • the UE attitude is regarded as an unknown quantity, and the UE attitude and UE position are estimated simultaneously.
  • the UE attitude is treated as an unknown quantity and the UE attitude is estimated, which can also be called multipath assisted attitude determination.
  • Reference antenna port used to indicate which phase on the antenna port is used as the reference value when calculating the phase difference between the reference antenna port and the non-reference antenna port.
  • the phase difference between the reference antenna port and the non-reference antenna port may be the difference or the absolute value of the difference between the reference value and the phase of the non-reference antenna port, or it may be the difference between the phase of the non-reference antenna port and the reference value. Difference or absolute value of difference.
  • Attitude refers to the attitude information of the UE's local coordinate system relative to the reference coordinate system. It can be the heading angle, pitch angle and tilt angle of the UE relative to the reference coordinate system, or attitude information represented by quaternions, or attitude information represented by Euler angles, or attitude information represented by a rotation matrix, or attitude information represented by a rotation vector , it can also be attitude information represented by other methods.
  • the reference coordinate system may be a coordinate system in which the access network equipment is located, a geocentric fixed coordinate system, a geodetic coordinate system, etc., or may be other types of coordinate systems.
  • Antenna port related information refers to the relative position information of antenna port distribution, which can be the relative position information between antenna ports. Coordinate information, antenna port spacing information, antenna port layout shape information, and layout index information.
  • the relative coordinate information can establish a coordinate system with a certain antenna port as the origin, including two-dimensional or three-dimensional coordinate information of the antenna port, which panel the antenna port is located on, and other information. When there are multiple antenna panels, one coordinate system or multiple coordinate systems can be established. The multiple coordinate systems may be one coordinate system established on each panel, or some panels may share one coordinate system.
  • the shape information may be circular, linear, square or other shape information, and may include information such as the radius or diameter of the circular array, the spacing of the linear array, the length and width of the square array, etc.
  • the layout index information refers to preconfiguring a list of antenna port layout information, and determining the layout information of the antenna port according to the index of the list.
  • Adjacent antenna ports If there are no other antenna ports on the connecting line segment (not an extension of the connecting line) of the two antenna ports, or the distance between the two antenna ports does not exceed D, then The two antenna ports can be considered adjacent. Among them, D is a real number greater than 0. Typical values can be ⁇ /2 or ⁇ ( ⁇ is the carrier wavelength), and other values are also possible. If there are other antenna ports on the connecting line segment (not the extension line) of the two antenna ports, and the distance between the two antenna ports exceeds D, it can be considered that the two antenna ports are not adjacent. of.
  • the first device is a terminal device, and the second device is an access network device; or, the first device is an access network device, and the second device is a terminal. equipment.
  • the network unit in this example may be a location management function LMF network element, or the first device, or a V2X application server, or other communication entities.
  • the method of this application can be applied to a sidelink (Sidelink) positioning scenario.
  • Step 401 The second device sends a reference signal to the first device, and accordingly, the first device receives the reference signal from the second device.
  • the first device measures the reference signal from the second device to obtain phase information; the phase information is used for positioning.
  • the phase information can be used for one or more of the following positioning: artificial intelligence AI positioning, or fingerprint positioning, or multipath-assisted positioning. That is to say, the phase information of this application can be applied in AI positioning scenarios, fingerprint positioning scenarios, and multi-path assisted positioning scenarios.
  • the phase information includes but is not limited to one or more of the following: a weighted average of phase differences between antenna ports in at least two antenna ports; a weighted average of phase differences between a reference antenna port and a non-reference antenna port in at least two antenna ports. phase difference.
  • the first device measures the reference signal from the second device to obtain the phase information.
  • the first device measures the reference signal from the second device to obtain at least two of the first device or the second device.
  • Phases corresponding to the antenna ports respectively; the phase information is determined based on the phases corresponding to the at least two antenna ports.
  • the phase can be the carrier phase or other types of phase.
  • the phase difference refers to the difference in phase between signals received by two antenna ports (for example, adjacent antenna ports, or for example, a reference antenna port and a non-reference antenna port).
  • the at least two antenna ports are at least two antenna ports in the first device or at least two antenna ports in the second device.
  • the at least two antenna ports may be antenna ports in the first device.
  • the at least The two antenna ports may be antenna ports in the second device.
  • the at least two antenna ports may be the first The antenna port in one device can also be the antenna port in the second device.
  • the first device may determine the phase information for the antenna port b1, using a1 and a2 as at least two antenna ports; it may determine the phase information for the antenna port b2, using a1 and a2 as at least two antenna ports; it may determine the phase information for the antenna port a1 , use b1 and b2 as at least two antenna ports to determine the phase information; for the antenna port a2, use b1 and b2 as at least two antenna ports to determine the phase information.
  • Reference signals such as positioning reference signal (PRS), sounding reference signal (SRS), channel status information reference signal (CSI-RS), demodulation reference signal (demodulation reference signal) , DMRS), phase tracking reference signal (PTRS), cell reference signal (cell reference signal, CRS), etc.
  • PRS positioning reference signal
  • SRS sounding reference signal
  • CSI-RS channel status information reference signal
  • CSI-RS demodulation reference signal
  • DMRS demodulation reference signal
  • PTRS phase tracking reference signal
  • CRS cell reference signal
  • the weighted average of the phase differences between the antenna ports may be the weighted average of the phase differences between any two antenna ports, or the weighted average of the phase differences between the antenna ports may be the phase between adjacent antenna ports. weighted average of differences. For example, there are no other antenna ports on the line segment connecting the positions of the adjacent antenna ports, and/or the distance between the positions of the adjacent antenna ports is less than or equal to a set threshold.
  • the threshold is a real number greater than 0.
  • the value of the threshold can be ⁇ /2 or ⁇ , or it can have other values, where ⁇ is the carrier wavelength.
  • the weighted average of the phase differences between antenna ports refers to the result of weighting and averaging the phase differences according to the weight value of the phase differences between antenna ports (for example, between adjacent antenna ports).
  • the weighted average of the phase difference may be the weighted average of the phase differences between the two antenna ports, which is equivalent to the weighted value of the phase difference; it may also be the weighted average of multiple phase differences.
  • the weight value of the phase difference may be pre-specified by the protocol, or may be determined based on the antenna spacing ratio. For example, the weight value of the phase difference between adjacent antenna ports is the antenna spacing ratio between the adjacent antenna ports.
  • the distance between adjacent antenna ports in the N+1 antenna ports is d 1 , d 2 ,..., d N , and the antenna spacing ratio is k 1 ⁇ k 2 ⁇ ... ⁇ k N , then there is Assume that the incident angle of the reference signal is ⁇ , then the phase difference between the signals received by antenna port i and antenna port i+1 is ⁇ is the carrier wavelength.
  • the weighted phase differences are equal, that is Averaging the weighted values of the phase differences, we get That is the weighted average of the phase differences between adjacent antenna ports. If the antennas are equally spaced, the weighted average of the phase differences between adjacent antenna ports is equivalent to the average of the phase differences between adjacent antenna ports.
  • the at least two antenna ports of the present application are arranged in one or more antenna directions (the antenna direction refers to the connection direction of the positions of two or more antenna ports); it can be understood that For each phase difference, the weighted average value is used, and the antenna port corresponding to the phase used to determine the weighted average value of the phase difference corresponds to the same antenna direction. That is, among at least two antenna ports, adjacent antenna ports correspond to the same antenna direction. Taking into account the weighted average of the phase differences in multiple antenna directions, the accuracy of positioning can be improved.
  • At least two antenna ports include 10 antenna ports, and antenna ports 1-3 correspond to antenna direction 1 (it can be understood that the direction of the line connecting position 1 of antenna port 1 and position 2 of antenna port 2 is antenna direction 1; The direction of the connection between position 2 of port 2 and position 3 of antenna port 3 is antenna direction 1; the direction of the connection between position 1 of antenna port 1 and position 3 of antenna port 3 is antenna direction 1), Antenna ports 4-8 correspond to antenna direction 2, and antenna ports 9 and 10 correspond to antenna direction 3; then the weighted average of the phase differences determined based on the phases corresponding to antenna ports 1-3 is the weighted phase difference corresponding to antenna direction 1 The average value; the weighted average of the phase differences determined by the phases corresponding to antenna ports 4-8 is the weighted average of the phase differences corresponding to antenna direction 2; the weighted average of the phase differences determined by the phases corresponding to antenna ports 9 and 10 The value is the weighted average of the phase differences corresponding to antenna direction 3.
  • the phase corresponding to each of the at least two antenna ports in the present application includes the phase corresponding to one or more paths (that is, each antenna port measures the phase of one path or measures multiple paths.
  • the weighted average value of the phase difference is the weighted average value on the same path. It can be understood that the weighted average value of the phase difference is determined based on the phase on the same path. Taking into account the weighted average of the phase differences on multiple paths, the accuracy of positioning can be improved.
  • the phase corresponding to one antenna port includes phases corresponding to m paths. For any path, the weighted average of the phase differences corresponding to the path can be determined based on the phase corresponding to the path.
  • the weighted average of the phase difference reported to the network unit in this application can be the calculation result in a single or multiple antenna directions, and can be the calculation result in a single path or multiple paths.
  • n represents the number of antenna directions
  • m represents the number of paths
  • m and n are both integers greater than or equal to 1
  • the weighted phase difference The number of averages is n*m):
  • the at least two antenna ports include 10 antenna ports.
  • the at least two antenna ports include 10 antenna ports.
  • the at least two antenna ports include 10 antenna ports.
  • the at least two antenna ports include 10 antenna ports.
  • the signaling overhead will be high.
  • This application reports the weighted average of the phase differences, which can reduce the signaling overhead.
  • the weighted average of the phase difference is used as the fingerprint feature. Compared with using the phase difference as the fingerprint feature, the impact of noise on the fingerprint feature can be suppressed, and the number of fingerprint features in each antenna direction is reduced, which can reduce the AI Network complexity.
  • phase difference between the reference antenna port and the non-reference antenna port is introduced below:
  • the phase difference between the reference antenna port and the non-reference antenna port may be the difference or the absolute value of the phase between the reference antenna port and the non-reference antenna port, or it may be the phase difference between the non-reference antenna port and the reference antenna port. Value or difference absolute value.
  • the non-reference antenna port may be selected by the first device or by the network unit.
  • the phase corresponding to each of the at least two antenna ports in this application includes the phase corresponding to one or more paths.
  • the reference antenna port The phase difference between the reference antenna port and the non-reference antenna port is the phase difference on the same path. It can be understood that the phase difference between the reference antenna port and the non-reference antenna port is determined based on the phase on the same path. Taking into account the phase difference between the reference antenna port and the non-reference antenna port on multiple paths, the positioning accuracy can be improved.
  • one or more reference antenna ports can be set, for example, one antenna panel is set with one reference antenna port or multiple antenna panels share one reference antenna port.
  • one antenna panel is set with one reference antenna port or multiple antenna panels share one reference antenna port.
  • the phase difference between the other antenna ports in each panel and the reference antenna port of the respective panel can be used to obtain the phase difference between the reference antenna port and the non-reference antenna port on different panels.
  • multiple panels can share one reference antenna port.
  • the antenna port in the upper left corner of panel 1 is the reference antenna port, and the remaining non-reference antenna ports in the three panels have a phase difference with the reference antenna port on panel 1. Get multiple phase differences.
  • the phase difference between the reference antenna port and the non-reference antenna port reported to the network unit in this application can be the calculation result on a single path or multiple paths.
  • X represents the number of antenna ports
  • m represents the number of paths
  • r represents the number of non-reference antenna ports
  • m and r are both greater than or equal to 1
  • X is greater than or equal to 2
  • the phase difference between the reference antenna port and the non-reference antenna port is 9.
  • the phase difference between the reference antenna port and the non-reference antenna port is m*(X-1 )indivual.
  • the reference antenna port and the non-reference antenna port The phase difference between them is 8 (i.e. (i.e. r*(X-2)).
  • the at least two antenna ports include X antenna ports.
  • the X antenna ports include r reference antenna ports and X-r non-reference antenna ports.
  • the phase difference between the reference antenna ports is m*(X-r) or r*m*(X-r).
  • the reference antenna ports used may be the same or different.
  • the antenna port in the upper left corner of Panel 1 in Figure 3b can be selected as the reference antenna port.
  • the antenna port in the upper left corner of Panel 2 in Figure 3b can be selected as the reference antenna port.
  • Step 402 The first device sends the phase information to the network unit; accordingly, the network unit receives the phase information from the first device.
  • Step 403 The network unit locates the terminal device based on the phase information.
  • the first device may not perform step 402. After the first device determines the phase information, it does not need to be sent to the network unit. Instead, the first device determines the location of the terminal device. That is, the first device uses The phase information locates the terminal device. In this example, the first device may also receive from the network unit AI network parameters, the AI network parameters are used for AI positioning.
  • the AI network parameters include network model parameters such as the number of layers, the number of neurons, and weight values.
  • the network unit or the first device may use artificial intelligence AI positioning, fingerprint positioning, or multipath assisted positioning to position the terminal device based on the phase information.
  • phase information i.e., the phase difference between the reference antenna port and the non-reference antenna port and/or the weighted average of the phase difference between the antenna ports
  • the value is used as a fingerprint feature for AI positioning.
  • the phases of at least three antenna ports are required to estimate the angle information.
  • the weighted average of the phase differences between the antenna ports and the phase difference between the reference antenna port and the non-reference antenna port in this application require The phases of at least two antenna ports are sufficient. Compared with using angle estimates as fingerprint features for AI positioning, the requirement for the number of antenna ports is reduced.
  • the amount of fingerprint feature data is reduced, reducing the complexity of AI positioning without reducing the accuracy of AI positioning.
  • the protocol can stipulate that when positioning the terminal device, the weighted average of the phase difference in which antenna direction(s) is considered. If the network unit or the first device has no special requirements, it can be operated in accordance with the protocol. Of course, the protocol may not stipulate this, or the network unit or the first device may have special requirements. In this case, the network unit unit and the first device may communicate and negotiate which or which antenna directions the weighted average of the phase differences should be considered.
  • the information used to indicate the antenna direction corresponding to the weighted average of the phase difference is called first information.
  • the first device sends first information to the network unit.
  • the network unit receives the first information from the first device.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference.
  • the first information indicates the correlation between the weighted average of the phase difference and the antenna direction, that is, which antenna direction the weighted average of the phase difference belongs to.
  • the first device notifies the network unit of the correlation between the weighted average of the phase difference and the antenna direction through the first information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the weighted average of the first information and the phase difference can be reported in one message or in multiple messages.
  • the network unit sends the first information to the first device.
  • the first device receives the first information from the network unit.
  • the first information indicates the antenna corresponding to the weighted average of the phase difference between the antenna ports.
  • Direction can be understood as the first information indicating one or more antenna directions, which are used by the first device to determine a weighted average of the phase difference.
  • the network unit tells the first device to determine the weighted average of the phase differences in which antenna direction or directions through the first information. In this way, when the first device measures the reference signal from the second device, it can measure the reference signal from the second device based on the first information (ie, the antenna direction indicated by the first information).
  • the first device When reporting the weighted average of the phase difference to the network unit, the first device can still indicate the antenna direction corresponding to the weighted average of the phase difference again. Of course, it does not need to indicate the antenna direction corresponding to the weighted average of the phase difference.
  • the first device The device reports the weighted average of the phase differences in the order of the antenna directions indicated by the first information, so that there is no need to indicate again the antenna direction corresponding to the weighted average of the phase differences.
  • the first device when determining the weighted average of the phase difference, it is necessary to know the spacing ratio (ie, the antenna spacing ratio) of the antenna ports (for example, adjacent antenna ports), so as to determine the distance between the antenna ports (i.e., the antenna spacing ratio) based on the spacing ratio of the antenna ports. For example, the weight value of the phase difference between adjacent antenna ports). If at least two antenna ports are antenna ports in the first device, the first device can determine the antenna spacing ratio of the first device by itself; if at least two antenna ports are antenna ports in the second device, a second device is required. The device notifies the first device of the antenna spacing ratio of the second device. In this application, the information used to indicate the antenna spacing ratio is called second information.
  • the first device receives the second information from the second device or network unit, and the second device
  • the information indicates the antenna spacing ratio of the second device, and the antenna spacing ratio is used to determine the weight value of the phase difference between the antenna ports (for example, between adjacent antenna ports).
  • the network unit may receive the second information from the second device and send the second information to the first device.
  • the terminal device determines the phase information, and the terminal device receives the second information from the access network device; the access network device may directly send the second information to the terminal device, or the access network device may The device sends the second information to the network unit, and the network unit sends it to the terminal device.
  • the access network device determines the phase information, and the access network device receives the second information from the terminal device; the terminal device may directly send the second information to the access network device, or it may The terminal device sends the second information to the network unit, and the network unit sends it to the access network device.
  • the second information may also indicate equal spacing between antenna ports, and then the second information is the antenna equal spacing indication.
  • the second information indicates the antenna spacing ratio corresponding to each antenna direction, that is, if at least two antenna ports in the second device are set in multiple antenna directions, the antenna spacing ratios in different antenna directions can be indicated to the third device.
  • the antenna spacing ratios in different antenna directions can be the same or different.
  • the second information may be carried in an LTE Positioning Protocol (LPP) message or other types of messages, such as network
  • LTP LTE Positioning Protocol
  • the two terminal devices can transmit information through PC5 radio resource control (PC5 radio resource control, PC5-RRC) or V5 messages; for another example, when the network unit is a V2X application server, information can be transmitted through V1 messages.
  • PC5 radio resource control PC5 radio resource control
  • V5 messages for another example, when the network unit is a V2X application server, information can be transmitted through V1 messages.
  • the terminal device sends the second information to the access network device, or the access network device sends the second information to the terminal device the second information can be carried in a radio resource control (RRC) message or other types of messages. middle.
  • RRC radio resource control
  • the second information can be carried in an NR Positioning Protocol (NR Positioning Protocol Annex, NRPPa) message, or other types in the message.
  • NR Positioning Protocol NR Positioning Protocol Annex, NRPPa
  • a network unit or a first device when positioning a terminal device using a weighted average of phase differences between antenna ports (for example, between adjacent antenna ports), it is usually necessary to know the corresponding weighted average of each phase difference. path.
  • the protocol can stipulate that when positioning the terminal device, the weighted average of the phase difference on which path or paths should be considered. If the network unit or the first device has no special requirements, it can be operated in accordance with the protocol. Of course, the protocol may not stipulate this, or the network unit or the first device may have special requirements. In this case, the network element unit and the first device may communicate and negotiate which path(s) to consider the weighted average of the phase differences. The same is true for the phase difference between the reference antenna port and the non-reference antenna port.
  • the information indicating the path corresponding to the weighted average of the phase differences and/or the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port is called third information.
  • the third information may also be called a multipath measurement indication, indicating which path's measurement result the weighted average of each phase difference belongs to and/or indicating each reference antenna port. The measurement result of which path the phase difference between the non-reference antenna port and the non-reference antenna port belongs to.
  • the first device sends third information to the network unit, and accordingly, the network unit receives third information from the first device, where the third information indicates the path sum//s corresponding to the weighted average of the phase difference. Or the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the first device notifies the network unit of the path information through the third information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the network unit sends third information to the first device.
  • the first device receives the third information from the network unit.
  • the third information indicates the path and/or reference antenna port corresponding to the weighted average of the phase difference and
  • the path corresponding to the phase difference between non-reference antenna ports can be understood as the third information indicating one or more paths, which are used by the first device to determine the weighted average of the phase difference and/or the reference antenna port and the non-reference antenna. Phase difference between ports.
  • the network unit uses the third information to tell the first device to determine the weighted average of the phase differences on which path(s) and/or the phase difference between the reference antenna port and the non-reference antenna port. In this way, the first device pairs data from the second device.
  • the reference signal from the second device can be measured based on the third information (ie, the path indicated by the third information).
  • the first device can still indicate the path corresponding to the phase information again.
  • the first device reports the phase information in the order of the paths indicated by the third information, so there is no need to indicate the path corresponding to the phase information again.
  • the network unit or the first device when using the phase difference between the reference antenna port and the non-reference antenna port to locate the terminal device, it is usually necessary to know the reference antenna port corresponding to each phase difference.
  • the protocol can stipulate which antenna port or ports are used as the reference antenna port when positioning the terminal device. If the network unit or the first device has no special requirements, it can be operated in accordance with the protocol. Of course, the protocol may not provide for this, or the network unit or the first device may have special requirements. In this case, the network unit and the first device may communicate and negotiate which antenna port(s) should be used as the reference antenna port. It can be understood that in this application, the information used to indicate the reference antenna port is called fourth information.
  • the first device sends fourth information to the network unit.
  • the network unit receives fourth information from the first device.
  • the fourth information indicates the phase difference between the reference antenna port and the non-reference antenna port.
  • the first device notifies the network unit of the reference antenna port through the fourth information, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the network unit sends fourth information to the first device.
  • the first device receives the fourth information from the network unit.
  • the fourth information indicates the phase difference between the reference antenna port and the non-reference antenna port.
  • the reference antenna port can be understood as the fourth information is used to indicate one or more reference antenna ports, and the reference antenna port is used to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the network unit uses the fourth information to tell the first device which antenna port or ports to use as the reference antenna port to determine the phase difference between the reference antenna port and the non-reference antenna port.
  • the fourth information may include one or more reference antenna port identifiers.
  • the first device When reporting the phase difference between the reference antenna port and the non-reference antenna port to the network unit, the first device can still indicate again the reference antenna port corresponding to the phase difference between the reference antenna port and the non-reference antenna port. If there is only one reference antenna port, the first device can There is no need to indicate again; if there are multiple reference antenna ports, the reference antenna port corresponding to the phase difference between the reference antenna port and the non-reference antenna port can be indicated again, so that the network unit can more accurately determine the location of the terminal device after knowing it.
  • the first device is a terminal device
  • the terminal device may also send measurement capability information of the terminal device to the network unit.
  • the network unit receives the measurement capability information from the terminal device.
  • the measurement capability information is used to indicate one or more of the following capabilities of the terminal device:
  • Measure the phase of multiple antenna ports measure the phase difference between multiple antenna ports, measure the phase difference between a reference antenna port and a non-reference antenna port, measure the weighted average of the phase difference between adjacent antenna ports, measure the phase difference of the measured antenna port Quantity, the number of measured access network devices, the number of measured paths, and the number of measured antenna directions.
  • Measuring the phase of multiple antenna ports may be replaced by supporting or not supporting measuring the phase of multiple antenna ports, or by whether measuring the phase of multiple antenna ports is supported.
  • Measuring the phase difference between multiple antenna ports may be replaced by supporting or not supporting measuring the phase difference between multiple antenna ports, or by whether supporting measuring the phase difference between multiple antenna ports.
  • Measuring the phase difference between the reference antenna port and the non-reference antenna port can be replaced by whether it supports or does not support measuring the phase difference between the reference antenna port and the non-reference antenna port, or whether it supports measuring the phase difference between the reference antenna port and the non-reference antenna port. phase difference.
  • Measuring the weighted average of the phase difference between adjacent antenna ports can be replaced by supporting or not supporting the weighted average of measuring the phase difference between adjacent antenna ports, or by whether supporting the weighted average of measuring the phase difference between adjacent antenna ports.
  • the terminal device does not need to report it. For example, if the terminal device does not support measuring the phase of multiple antenna ports, then the terminal device does not need to report that the terminal device does not support measuring the phase of multiple antenna ports. This means that the terminal device does not support measuring the phase of multiple antenna ports. The device does not support it.
  • the terminal device when the terminal device sends information to the network unit or the network unit sends information to the terminal device, the information can be carried in an LPP message or other types of messages.
  • the two terminal devices when the network unit is a terminal device, the two terminal devices can communicate through PC5 -RRC or V5 messages transmit information; for another example, when the network unit is a V2X application server, information can be transmitted through V1 messages.
  • This information includes but is not limited to one or more of the following: phase information, first information, second information, third information, fourth information, and measurement capability information.
  • the access network device sends information to the network unit or the network unit sends information to the access network device, the information can be carried in the NRPPa message.
  • the information includes but is not limited to one or more of the following: second information.
  • the information can be carried in the RRC message.
  • the information includes but is not limited to one or more of the following: second information.
  • the weighted average of the phase differences sent by the first device to the network unit, the phase difference between the reference antenna port and the non-reference antenna port, the first information, the second information, the third information, the fourth information, the measurement capability information, etc. can be in It can be sent in one message or in multiple messages. There is no restriction on this.
  • the network unit sends information (for example, first information, second information, third information, fourth information) to the first device, it can send it in one message or in multiple messages. This is not restricted.
  • the flow chart of positioning using the weighted average of the phase difference between adjacent antenna ports is introduced.
  • the terminal device determines the weighted average of the phase difference and reports the weighted average of the phase difference to the network unit.
  • the network unit determines the location of the terminal device.
  • This example can also be called UE-assisted downlink positioning. method.
  • Step 501 The terminal device reports measurement capability information to the network unit.
  • the measurement capability information may include but is not limited to: measuring the phase of multiple antenna ports (either supporting or not supporting measuring the phase of multiple antenna ports, or whether measuring the phase of multiple antenna ports is supported), measuring the distance between adjacent antenna ports. Weighted average of the phase difference (either supporting or not supporting the measurement of the weighted average of the phase difference between adjacent antenna ports, or supporting or not supporting the measurement of the weighted average of the phase difference between adjacent antenna ports), the number of measured antenna ports, measurement The number of access network equipment, the number of measured paths, and the number of measured antenna directions.
  • step 502 The access network device sends second information to the terminal device.
  • the second information indicates the antenna spacing ratio corresponding to each antenna direction in the access network device, or the access network device sends the second information to the network unit.
  • the second information is sent to the terminal device after the network unit receives the second information.
  • the access network device when the access network device uses multiple antenna ports to send downlink reference signals (such as positioning reference signal PRS), and the UE uses a single or multiple antenna ports to receive the downlink reference signal, the access network device will The antenna spacing ratio in each antenna direction is sent to the UE; or, the access network device first reports the antenna spacing ratio in each antenna direction in the access network device to the network unit, and then the network unit sends it to the UE.
  • this step 502 does not need to be performed.
  • Step 503 The access network device sends a downlink reference signal (eg, PRS) to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • a downlink reference signal eg, PRS
  • the access network equipment uses multiple antenna ports to send downlink reference signals (such as PRS), and the UE can use single or multiple antenna ports to receive downlink reference signals.
  • the access network equipment uses a single antenna port to send downlink reference signals (such as PRS), and the UE can use multiple antenna ports to receive downlink reference signals.
  • Step 504 The terminal device measures the downlink reference signal from the access network device to obtain the weighted average of the phase differences between adjacent antenna ports.
  • the terminal device sends the measured weighted average of the phase differences between adjacent antenna ports, the first information, and the third information to the network unit.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference, which can also be understood as the correlation between the weighted average of the phase difference and the antenna direction.
  • the third information indicates the path corresponding to the weighted average value of the phase difference.
  • the third information may also be called a multipath measurement indication.
  • the antenna spacing ratio may also be taken into consideration, and the antenna spacing ratio is used to determine the weight value of the phase difference between adjacent antenna ports.
  • the antenna spacing ratio may be the antenna spacing ratio in each antenna direction in the terminal device, or may be the antenna spacing ratio in each antenna direction in the access network device indicated by the second information in step 502.
  • Step 505 The network unit uses the weighted average of the phase differences between adjacent antenna ports to calculate the location of the terminal device.
  • the network unit uses the trained AI network and the weighted average of the phase differences received from the terminal device to calculate the position of the terminal device.
  • the network unit uses the trained AI network, the weighted average of the phase difference, and the antenna direction and path corresponding to the weighted average of the phase difference to calculate the location of the terminal device.
  • steps 504a and 504b may be combined with the replacement step 504.
  • Step 504a The network unit sends one or more of the first information and the third information to the terminal device.
  • the terminal device receives one or more of the first information and the third information from the network unit.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference, which can also be understood as the correlation between the weighted average of the phase difference and the antenna direction.
  • the third information indicates the path corresponding to the weighted average value of the phase difference.
  • the third information may also be called a multipath measurement indication.
  • Step 504b The terminal device measures the downlink reference signal according to the first information and/or the third information in step 504a, and obtains the weighted average of the phase differences between adjacent antenna ports; and obtains the measured adjacent antenna ports. The weighted average of the phase differences between them is sent to the network unit.
  • the antenna spacing ratio may also be taken into consideration, and the antenna spacing ratio is used to determine the weight value of the phase difference between adjacent antenna ports.
  • the antenna spacing ratio may be the antenna spacing ratio in each antenna direction in the terminal device, or may be the antenna spacing ratio in each antenna direction in the access network device indicated by the second information in step 502.
  • step 504a precedes step 503.
  • the first information and/or the third information may be configuration information.
  • the network unit first configures the terminal device, and then the terminal device measures the downlink reference signal according to the configuration of the network unit.
  • step 504a can also follow step 503. In this way, the terminal device can first comprehensively measure the downlink reference signal, but when reporting subsequently, only report the weighted average of the phase difference related to the first information and/or the third information. value.
  • the access network device determines the weighted average of the phase difference and reports the weighted average of the phase difference to The network unit determines the location of the terminal device.
  • This example may also be called an access network device-assisted (RAN-assisted) uplink positioning method.
  • step 601 the terminal device sends second information to the access network device, the second information indicates the antenna spacing ratio corresponding to each antenna direction in the terminal device, or the terminal device sends the second information to the network unit, and the network After receiving the second information, the unit sends it to the access network device.
  • the terminal equipment uses multiple antenna ports to send uplink reference signals (such as sounding reference signal SRS), and the access network equipment uses single or multiple antenna ports to receive the uplink reference signals
  • the terminal equipment transmits each of the uplink reference signals in the terminal equipment.
  • the antenna spacing ratio in the antenna direction is sent to the access network device; alternatively, the terminal device first reports the antenna spacing ratio in each antenna direction in the terminal device to the network unit, and then the network unit sends it to the access network device.
  • this step 601 does not need to be performed.
  • Step 602 The terminal device sends an uplink reference signal (for example, SRS) to the access network device.
  • the access network device receives the uplink reference signal from the terminal device.
  • an uplink reference signal for example, SRS
  • the terminal equipment uses multiple antenna ports to send uplink reference signals (such as SRS), and the access network equipment can use single or multiple antenna ports to receive the uplink reference signals.
  • the terminal equipment uses a single antenna port to send uplink reference signals (such as SRS), and the access network equipment can use multiple antenna ports to receive uplink reference signals.
  • Step 603 The access network device measures the uplink reference signal from the terminal device to obtain the weighted average of the phase differences between adjacent antenna ports.
  • the access network device sends the measured weighted average of the phase differences between adjacent antenna ports, the first information, and the third information to the network unit.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference, which can also be understood as the correlation between the weighted average of the phase difference and the antenna direction.
  • the third information indicates the path corresponding to the weighted average value of the phase difference.
  • the third information may also be called a multipath measurement indication.
  • the antenna spacing ratio may also be taken into consideration, and the antenna spacing ratio is used to determine the weight value of the phase difference between adjacent antenna ports.
  • the antenna spacing ratio may be the antenna spacing ratio in each antenna direction in the access network device, or may be the antenna spacing ratio in each antenna direction in the terminal device indicated by the second information in step 601.
  • Step 604 The network unit uses the weighted average of the phase differences between adjacent antenna ports to calculate the location of the terminal device.
  • the network unit uses the trained AI network and the weighted average of the phase differences received from the access network device to calculate the location of the terminal device.
  • the network unit uses the trained AI network, the weighted average of the phase difference, and the antenna direction and path corresponding to the weighted average of the phase difference to calculate the location of the terminal device.
  • steps 603a and 603b may be combined with the replacement step 603.
  • Step 603a The network unit sends one or more of the first information and the third information to the access network device.
  • the access network device receives one or more of the first information and the third information from the network unit.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference, which can also be understood as the correlation between the weighted average of the phase difference and the antenna direction.
  • the third information indicates the path corresponding to the weighted average value of the phase difference.
  • the third information may also be called a multipath measurement indication.
  • Step 603b The access network device measures the uplink reference signal according to the first information and/or the third information to obtain a weighted average of the phase differences between adjacent antenna ports; and obtains the measured phase difference between adjacent antenna ports.
  • the weighted average of the phase differences is sent to the network unit.
  • the antenna spacing ratio may also be taken into consideration, and the antenna spacing ratio is used to determine the weight value of the phase difference between adjacent antenna ports.
  • the antenna spacing ratio may be the antenna spacing ratio in each antenna direction in the access network device, or may be the antenna spacing ratio in each antenna direction in the terminal device indicated by the second information in step 601.
  • the first information and/or the third information may be configuration information.
  • the network unit first configures the access network device, and then the access network device performs the uplink reference signal according to the configuration of the network unit. Measurement.
  • step 603a can also follow step 602. In this way, the access network device can first comprehensively measure the downlink reference signal, but when reporting subsequently, only the phase difference related to the first information and/or the third information is reported. Weighted average.
  • the flow chart of positioning using the weighted average of the phase difference between adjacent antenna ports is introduced.
  • the terminal device determines the weighted average of the phase difference and determines it based on the AI network parameters sent from the network unit.
  • the location of the terminal device This example may also be called a UE-based downlink positioning method.
  • Step 701 (same as step 501): The terminal device reports measurement capability information to the network unit.
  • step 702 the access network device sends second information to the terminal device.
  • the second information indicates the antenna spacing ratio corresponding to each antenna direction in the access network device, or the access network device
  • the device sends the second information to the network unit, and the network unit receives the second information and then sends it to the terminal device.
  • step 703 the network unit sends one or more of the first information, third information, and AI network parameters to the terminal device.
  • the terminal device receives the first information, the third information, and the AI network parameters from the network unit.
  • the first information indicates the antenna direction corresponding to the weighted average of the phase difference, which can also be understood as the correlation between the weighted average of the phase difference and the antenna direction.
  • the third information indicates the path corresponding to the weighted average value of the phase difference.
  • the third information may also be called a multipath measurement indication.
  • AI network parameters such as the number of layers, the number of neurons, weight values and other network model parameters.
  • the first information, the third information and the AI network parameters can be sent to the terminal device in multiple messages, or can be sent to the terminal device in the same message.
  • Step 704 (same as step 503):
  • the access network device sends a downlink reference signal (eg, PRS) to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • a downlink reference signal eg, PRS
  • the terminal equipment measures the downlink reference signal from the access network equipment and obtains the weighted average of the phase differences between adjacent antenna ports. For example, the terminal equipment performs the processing on the downlink reference signal according to the first information and/or the third information. Measure and obtain the weighted average of the phase differences between adjacent antenna ports.
  • the antenna spacing ratio may also be taken into consideration, and the antenna spacing ratio is used to determine the weight value of the phase difference between adjacent antenna ports.
  • the antenna spacing ratio may be the antenna spacing ratio in each antenna direction in the terminal device, or may be the antenna spacing ratio in each antenna direction in the access network device indicated by the second information in step 702.
  • Step 705 The terminal device calculates the position of the terminal device using the weighted average of the phase differences between adjacent antenna ports.
  • the terminal device uses the weighted average of the AI network parameters received from the network unit and the measured phase difference to calculate the location of the terminal device.
  • the weighted average of the phase differences between adjacent antenna ports is used as a fingerprint feature for AI positioning.
  • the phase of the antenna port is converted into angle information, which avoids the computational complexity of estimating angles and the loss of fingerprint information. , which can reduce complexity and improve AI positioning accuracy.
  • the phase of at least 3 antenna ports is required to estimate the angle information.
  • the weighted average of the phase difference in this application requires the phase of at least 2 antenna ports.
  • Using fingerprint features for AI positioning reduces the requirement for the number of antenna ports.
  • reporting the weighted average of the phase differences between adjacent antenna ports reduces the amount of reporting, which can save signaling overhead.
  • the weighted average of phase differences can further suppress the impact of noise on fingerprint features.
  • the flow chart of positioning using the phase difference between the reference antenna port and the non-reference antenna port is introduced.
  • the terminal device determines the phase difference between the reference antenna port and the non-reference antenna port, and reports the phase difference to
  • the network unit determines the location of the terminal device.
  • This example may also be called a UE-assisted downlink positioning method.
  • Step 801 The terminal device reports measurement capability information to the network unit.
  • the measurement capability information may include but is not limited to: measuring the phase of multiple antenna ports (either supporting or not supporting measuring the phase of multiple antenna ports, or whether measuring the phase of multiple antenna ports is supported), measuring the phase between multiple antenna ports.
  • the phase difference (either supporting or not supporting the measurement of the phase difference between multiple antenna ports, or whether the measurement of the phase difference between multiple antenna ports is supported), measuring the phase difference between the reference antenna port and the non-reference antenna port (either supporting or Does not support measuring the phase difference between the reference antenna port and the non-reference antenna port, or whether it supports measuring the phase difference between the reference antenna port and the non-reference antenna port), the number of measured antenna ports, the number of measured access network devices, The number of diameters measured.
  • Step 802 The access network device sends a downlink reference signal (eg, PRS) to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • a downlink reference signal eg, PRS
  • the access network equipment uses multiple antenna ports to send downlink reference signals (such as PRS), and the UE can use single or multiple antenna ports to receive downlink reference signals.
  • the access network equipment uses a single antenna port to send downlink reference signals (such as PRS), and the UE can use multiple antenna ports to receive downlink reference signals.
  • Step 802 may be the same as step 503.
  • Step 803 The terminal device measures the downlink reference signal from the access network device to obtain the phase difference between the reference antenna port and the non-reference antenna port.
  • the terminal device sends the phase difference between the reference antenna port and the non-reference antenna port, the third information, and the fourth information to the network unit.
  • the third information indicates the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the third information may also be Called multipath measurement indication.
  • the fourth information indicates the reference antenna port corresponding to the phase difference, which can also be understood as the correlation between the phase difference and the reference antenna port.
  • the fourth information includes the identification of the reference antenna port.
  • Step 804 The network unit uses the phase difference between the reference antenna port and the non-reference antenna port to calculate the position of the terminal device.
  • the network unit uses the trained AI network and the phase difference received from the terminal device to calculate the position of the terminal device.
  • the network unit uses the trained AI network, the phase difference between the reference antenna port and the non-reference antenna port, the reference antenna port corresponding to the phase difference, and the path corresponding to the phase difference to calculate the position of the terminal device.
  • steps 803a and 803b may be combined with the replacement step 803.
  • Step 803a The network unit sends one or more items of the third information and the fourth information to the terminal device.
  • the terminal device receives one or more items of the third information and the fourth information from the network unit.
  • the third information indicates the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the third information may also be called a multipath measurement indication.
  • the fourth information indicates the reference antenna port.
  • the fourth information includes an identification of the reference antenna port.
  • Step 803b The terminal device measures the downlink reference signal according to the third information and/or the fourth information in step 803a, and obtains the phase difference between the reference antenna port and the non-reference antenna port; and compares the measured reference antenna port with The phase difference between the non-reference antenna ports is sent to the network element.
  • step 803a precedes step 802.
  • the third information and/or the fourth information may be configuration information.
  • the network unit first configures the terminal device, and then the terminal device measures the downlink reference signal according to the configuration of the network unit.
  • step 803a can also follow step 802. In this way, the terminal device can first comprehensively measure the downlink reference signal, but when reporting subsequently, only the reference antenna port and non-reference antenna port related to the third information and/or the fourth information are reported. Reference phase difference between antenna ports.
  • the flow chart of positioning using the phase difference between the reference antenna port and the non-reference antenna port is introduced.
  • the access network equipment determines the phase difference between the reference antenna port and the non-reference antenna port, and calculates the phase difference.
  • the network unit determines the location of the terminal device. This example may also be called an access network equipment-assisted (UE-assisted) uplink positioning method.
  • UE-assisted access network equipment-assisted
  • Step 901 The terminal device sends an uplink reference signal (such as a sounding reference signal SRS) to the access network device.
  • an uplink reference signal such as a sounding reference signal SRS
  • the access network device receives the uplink reference signal from the terminal device.
  • the terminal equipment uses multiple antenna ports to send uplink reference signals (such as SRS), and the access network equipment can use single or multiple antenna ports to receive the uplink reference signals.
  • the terminal equipment uses a single antenna port to send uplink reference signals (such as SRS), and the access network equipment can use multiple antenna ports to receive uplink reference signals.
  • Step 901 may be the same as step 602.
  • Step 902 The access network device measures the uplink reference signal from the terminal device to obtain the phase difference between the reference antenna port and the non-reference antenna port.
  • the access network device sends the phase difference between the reference antenna port and the non-reference antenna port, the third information, and the fourth information to the network unit.
  • the third information indicates the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the third information may also be called a multipath measurement indication.
  • the fourth information indicates the reference antenna port corresponding to the phase difference, which can also be understood as the correlation between the phase difference and the reference antenna port.
  • the fourth information includes the identification of the reference antenna port.
  • Step 903 The network unit uses the phase difference between the reference antenna port and the non-reference antenna port to calculate the position of the terminal device.
  • the network unit uses the trained AI network and the phase difference received from the access network device to perform the terminal equipment position calculation. Specifically, the network unit uses the trained AI network, the phase difference between the reference antenna port and the non-reference antenna port, the reference antenna port corresponding to the phase difference, and the path corresponding to the phase difference to calculate the position of the terminal device.
  • steps 902a and 902b may be combined with the replacement step 902.
  • Step 902a The network unit sends one or more of the third information and the fourth information to the access network device.
  • the access network device receives one or more of the third information and the fourth information from the network unit. Multiple items.
  • Step 902b The access network device measures the uplink reference signal according to the third information and/or the fourth information in step 902a, and obtains the phase difference between the reference antenna port and the non-reference antenna port; and uses the measured reference antenna The phase difference between the port and the non-reference antenna port is sent to the network element.
  • step 902a precedes step 901.
  • the third information and/or the fourth information may be configuration information.
  • the network unit first configures the access network device, and then the access network device performs the uplink reference signal according to the configuration of the network unit. Measurement.
  • step 902a can also be performed after step 901. In this way, the access network device can first comprehensively measure the uplink reference signal, but in subsequent reporting, only the reference antenna port related to the third information and/or the fourth information is reported. The phase difference from the non-reference antenna port.
  • the flow chart of positioning using the phase difference between the reference antenna port and the non-reference antenna port is introduced.
  • the terminal device determines the phase difference between the reference antenna port and the non-reference antenna port, and based on the phase difference sent from the network unit
  • the AI network parameters are used to determine the location of the terminal device.
  • This example can also be called a UE-based downlink positioning method.
  • Step 1001 (same as step 801): The terminal device reports measurement capability information to the network unit.
  • step 1002 The network unit sends one or more of the third information, the fourth information, and the AI network parameters to the terminal device.
  • the terminal device receives the third information, the fourth information, and the AI network parameters from the network unit.
  • One or more of the AI network parameters are one or more of the AI network parameters.
  • the third information indicates the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the third information may also be called a multipath measurement indication.
  • the fourth information indicates the reference antenna port.
  • the fourth information includes an identification of the reference antenna port.
  • AI network parameters such as the number of layers, the number of neurons, weight values and other network model parameters.
  • the third information, the fourth information and the AI network parameters can be sent to the terminal device in multiple messages, or can be sent to the terminal device in the same message.
  • Step 1003 (same as step 802):
  • the access network device sends a downlink reference signal (eg, PRS) to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • a downlink reference signal eg, PRS
  • the terminal equipment measures the downlink reference signal from the access network equipment to obtain the phase difference between the reference antenna port and the non-reference antenna port.
  • the terminal device measures the downlink reference signal according to the third information and/or the fourth information, and obtains the phase difference between the reference antenna port and the non-reference antenna port.
  • Step 1004 The terminal device uses the phase difference between the reference antenna port and the non-reference antenna port to calculate the position of the terminal device.
  • the terminal device uses the AI network parameters received from the network unit and the measured phase difference between the reference antenna port and the non-reference antenna port to calculate the position of the terminal device.
  • the phase difference between the reference antenna port and the non-reference antenna port is used as a fingerprint feature for AI positioning.
  • the phases of at least three antenna ports are required to estimate the angle information, and the reference antenna port and non-reference antenna port of this application
  • the phase difference between the two antennas only requires the phase of at least two antenna ports. Compared with using the angle estimate as a fingerprint feature for AI positioning, the requirement for the number of antenna ports is reduced.
  • the posture of the terminal device which is the posture of the terminal device in the three-dimensional space.
  • the attitude of a car by estimating its attitude, the heading of the vehicle on the road can be obtained, which can be used to assist the vehicle in operations such as changing lanes and turning.
  • multiple antenna ports can be used to receive signals and measure the phase, which can estimate the UE attitude.
  • phase the measurement information
  • this application proposes a new method for determining the posture of a terminal device.
  • a method for determining the UE attitude is provided, and the flow chart of using the downlink angle of arrival (DL-AOA) for attitude determination is introduced.
  • the terminal device determines the downlink angle of arrival and sets the downlink angle of arrival.
  • the angle of arrival is reported to the network unit, which determines the attitude of the terminal device.
  • This example may also be called a UE-assisted downlink attitude determination method.
  • step 1101 the terminal device sends measurement capability information to the network unit, and accordingly, the network unit receives the measurement capability information from the terminal device.
  • the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: measuring phases of multiple antenna ports, measuring downlink angle of arrival (DL-AOA), measuring the number of antenna ports, measuring access The number of network equipment and the number of measured diameters.
  • DL-AOA downlink angle of arrival
  • measuring the phases of multiple antenna ports may be replaced by supporting or not supporting measuring the phases of multiple antenna ports, or by whether measuring the phases of multiple antenna ports is supported.
  • Measuring the downlink angle of arrival can be replaced by supporting or not supporting measuring the downlink angle of arrival, or by whether measuring the downlink angle of arrival is supported.
  • the terminal device does not need to report it. For example, if the terminal device does not support measuring the phase of multiple antenna ports, then the terminal device does not need to report that the terminal device does not support measuring the phase of multiple antenna ports. This means that the terminal device does not support measuring the phase of multiple antenna ports. The device does not support it.
  • the terminal device reports its own capability information to the network unit so that the network unit can choose an appropriate method to achieve the posture of the terminal device based on the capabilities supported by the terminal device.
  • Step 1102 The access network device sends a downlink reference signal to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • Downlink reference signals include positioning reference signals such as PRS.
  • Step 1103 For example, the terminal device measures the reference signal from the access network device to obtain the downlink angle of arrival, and the downlink angle of arrival is used to determine the attitude of the terminal device.
  • the downlink angle of arrival DL-AOA is the signal arrival angle obtained by measuring the downlink reference signal received by the UE using multiple antenna ports.
  • a method of estimating DL-AOA may be that the UE estimates DL-AOA using phases on multiple antenna ports and antenna port related information of the UE, or other methods may be used to estimate DL-AOA.
  • the DL-AOA can be expressed by a unit direction vector, an azimuth angle and a horizontal angle, or other methods that can express directions.
  • the terminal device sends the downlink angle of arrival (DL-AOA) to the network unit, and accordingly, the network unit receives the downlink angle of arrival from the terminal device.
  • DL-AOA downlink angle of arrival
  • the downlink angle of arrival is determined based on the phases of at least three antenna ports, and the at least three antenna ports are The antenna port in the terminal device.
  • the terminal device measures the reference signal from the access network device to obtain phases corresponding to at least three antenna ports in the terminal device; and determines the downlink angle of arrival based on the phases.
  • the access network device uses a single antenna port to send the reference signal, and the terminal device uses multiple antenna ports to receive the reference signal, and the at least three antenna ports are antenna ports in the terminal device.
  • the terminal equipment can target antenna port b1 , use a1, a2 and a3 as at least three antenna ports to determine the phase; for the antenna port b2, use a1, a2 and a3 as at least three antenna ports to determine the phase; for the antenna port b3, use a1, a2 and a3 as At least three antenna ports determine the phase.
  • Step 1104 The network unit uses the downlink angle of arrival to determine the attitude of the terminal device.
  • the downlink angle of arrival can be used for one or more of artificial intelligence AI pose determination, fingerprint pose determination, or multipath assisted pose determination. That is, the network unit can use one or more methods of artificial intelligence AI positioning, fingerprint positioning, and multipath assisted positioning to position the terminal device based on the downlink angle of arrival.
  • the network unit uses the trained AI network and the downlink angle of arrival received from the terminal device to calculate the attitude of the terminal device.
  • the network unit uses the trained AI network, the downlink arrival angle, and the path corresponding to the downlink arrival angle to calculate the attitude of the terminal device.
  • step 1105 the network unit sends attitude information to the terminal device.
  • the terminal device receives the attitude information from the network unit.
  • the attitude information indicates the attitude of the terminal device.
  • the attitude information is based on the downlink arrival. Angle determined.
  • the attitude of the terminal device has a wide range of uses. Generally, multiple antenna ports can be used to receive reference signals and measure the phase to estimate the UE attitude. This application proposes to use the downlink angle of arrival to determine the attitude of the terminal device, and proposes a new way of determining the attitude of the terminal device.
  • the measurement information i.e. phase
  • the downlink arrival angle is used as the fingerprint feature, and the AI network learns the relationship between the fingerprint features and the UE attitude, which can avoid inaccurate attitude determination in severe NLOS transmission environments.
  • the phase corresponding to each of the at least three antenna ports includes a phase corresponding to at least one path
  • the downlink arrival angle is the downlink arrival angle on the same path, which can be understood as The downward arrival angle is determined based on the phase on the same path. Taking into account the descending arrival angles on multiple paths, the accuracy of attitude determination can be improved.
  • the DL-AOA reported by the terminal equipment of this application to the network unit can be the result of measurement on a single path or multiple paths.
  • the protocol can stipulate which path or paths the downlink angle of arrival is to be considered when positioning the terminal device. If the network unit or terminal device has no special requirements, it can be operated in accordance with the protocol. Of course, the protocol may not stipulate this, or the network unit or terminal equipment may have special requirements. In this case, the network element unit and the terminal equipment may communicate and negotiate which path or paths to consider for the downlink angle of arrival.
  • the information used to indicate the path corresponding to the downlink arrival angle is called fifth information.
  • the fifth information may also be called a multipath measurement indication, which indicates the measurement result of which path each downlink arrival angle belongs to.
  • the terminal device sends the fifth information to the network unit, and accordingly, the network unit receives the fifth information from the terminal device, where the fifth information indicates the path corresponding to the downlink angle of arrival.
  • the terminal device notifies the network unit of the path information through the fifth information, so that the network unit can more accurately determine the posture of the terminal device after knowing it.
  • fifth letter The information and the downlink angle of arrival can be sent to the network element in the same message or in different messages.
  • the fifth information ie, multipath measurement indication
  • the downlink angle of arrival are sent to the network unit in the same message.
  • the network unit sends the fifth information to the terminal device.
  • the terminal device receives the fifth information from the network unit.
  • the fifth information indicates the path corresponding to the downlink arrival angle. It can be understood that the fifth information indicates one or more The path is used by the terminal equipment to determine the downlink angle of arrival.
  • the network unit uses the fifth information to tell the terminal device to determine the downlink angle of arrival on which path or paths. In this way, when the terminal device measures the reference signal from the access network device, it can based on the fifth information (i.e., the fifth The reference signal from the access network device is measured along the path indicated by the information.
  • the terminal device can still indicate the path corresponding to the downlink angle of arrival again. Of course, it is not necessary to indicate the path corresponding to the downlink angle of arrival.
  • the terminal device follows the path order indicated by the fifth information. Report the downward arrival angle, so that there is no need to indicate the path corresponding to the downward arrival angle again.
  • steps 1103a and 1103b may be combined with the replacement step 1103.
  • Step 1103a The network unit sends the fifth information to the terminal device, and accordingly, the terminal device receives the fifth information from the network unit.
  • the fifth information indicates the path corresponding to the downlink arrival angle, which can also be understood as the correlation between the downlink arrival angle and the path.
  • the fifth information can also be called a multipath measurement indication.
  • Step 1103b The terminal device measures the downlink reference signal according to the fifth information in step 1103a to obtain the downlink angle of arrival; and sends the measured downlink angle of arrival to the network unit.
  • step 1103a precedes step 1102, and the fifth information may be configuration information.
  • the network unit first configures the terminal device, and then the terminal device measures the downlink reference signal according to the configuration of the network unit.
  • step 1103a can also follow step 1102. In this way, the terminal device can first comprehensively measure the downlink reference signal, but when reporting subsequently, only the downlink angle of arrival related to the fifth information is reported.
  • the terminal device may not perform steps 1103 to 1105. After the terminal device determines the downlink angle of arrival, it does not need to be sent to the network unit. Instead, the terminal device determines the posture of the terminal device, that is, the terminal device adopts The downlink arrival angle determines the attitude of the terminal device. In this example, the terminal device may also receive AI network parameters from the network unit, and the AI network parameters are used for AI posture determination. As shown in Figure 12, a method for determining the posture of the UE is provided, and a flow chart of posture determination using the downlink angle of arrival (DL-AOA) is introduced. The terminal device determines the downlink angle of arrival, and based on the AI sent from the network unit Network parameters are used to determine the posture of the terminal device. This example can also be called a UE-based downlink posture determination method.
  • DL-AOA downlink angle of arrival
  • Step 1201 (same as step 1101): The terminal device reports measurement capability information to the network unit.
  • step 1202 the network unit sends the fifth information and one or more of the AI network parameters to the terminal device.
  • the terminal device receives the fifth information from the network unit, one or more of the AI network parameters or Multiple items.
  • the fifth information indicates the path corresponding to the downlink arrival angle, which can also be understood as the correlation between the downlink arrival angle and the path.
  • the fifth information can also be called a multipath measurement indication.
  • AI network parameters such as the number of layers, the number of neurons, weight values and other network model parameters.
  • the fifth information and the AI network parameters can be sent to the terminal device in multiple messages, or can be sent to the terminal device in the same message.
  • Step 1203 (same as step 1102):
  • the access network device sends a downlink reference signal (eg, PRS) to the terminal device, and accordingly, the terminal device receives the downlink reference signal from the access network device.
  • a downlink reference signal eg, PRS
  • the terminal equipment measures the downlink reference signal from the access network equipment to obtain the downlink arrival angle.
  • the downward angle of arrival is used to determine the attitude of the terminal device.
  • the terminal device measures the downlink reference signal according to the fifth information to obtain the downlink angle of arrival.
  • Step 1204 The terminal device uses the downlink angle of arrival to determine the posture of the terminal device.
  • the terminal device can use artificial intelligence (AI) attitude determination or other methods to determine the attitude of the terminal device based on the downlink angle of arrival.
  • AI artificial intelligence
  • step 1205 The terminal device sends gesture information to the network unit.
  • the network unit receives gesture information from the terminal device.
  • the gesture information indicates the gesture of the terminal device.
  • the gesture information is based on the downlink arrival. Angle determined.
  • a method for determining the posture of the UE is provided, and a flow chart of posture determination using the uplink angle of departure (UL-AOD) is introduced.
  • the access network device determines the uplink angle of departure, and The uplink transmission angle is reported to the network unit, and the network unit determines the posture of the terminal device.
  • This example may also be called an access network equipment-assisted (RAN-assisted) uplink posture determination method.
  • step 1301 The terminal device sends sixth information to the access network device.
  • the sixth information indicates information about the antenna ports (usually at least three antenna ports) of the terminal device, or the terminal device
  • the device sends the sixth information to the network unit, and the network unit sends the sixth information to the access network device.
  • Step 1302 The terminal device sends an uplink reference signal (such as a sounding reference signal SRS) to the access network device, and accordingly, the access network device receives the uplink reference signal from the terminal device.
  • an uplink reference signal such as a sounding reference signal SRS
  • the terminal equipment uses multiple antenna ports to send uplink reference signals (such as SRS), and the access network equipment can use single or multiple antenna ports to receive the uplink reference signals.
  • uplink reference signals such as SRS
  • Step 1303 The access network device measures the uplink reference signal from the terminal device to obtain the uplink transmission angle, which is used to determine the attitude of the terminal device.
  • the UL-AOD is the signal emission angle obtained by measuring the signal emission angle obtained by the access network device using a single antenna port to receive the uplink reference signal transmitted by the UE using multiple antenna ports.
  • One method of estimating UL-AOD may be that the access network device estimates the UL-AOD by using the measured phase of the signal transmitted by the UE's multi-port and the UE's antenna port related information, or other methods may be used to estimate the UL-AOD.
  • the UL-AOD can be expressed by a unit direction vector, an azimuth angle and a horizontal angle, or other methods that can express directions.
  • the access network equipment sends the measured uplink transmission angle and seventh information to the network unit.
  • the network unit receives the uplink transmission angle and seventh information from the access network device.
  • the seventh information indicates the path corresponding to the uplink transmission angle, and the seventh information may also be called a multipath measurement indication.
  • the uplink transmission angle is determined based on the phases of at least three antenna ports, and the at least three antenna ports are antenna ports in the terminal device.
  • the access network device measures the uplink reference signal from the terminal device to obtain the phases of at least three antenna ports in the terminal device, and the access network device determines the uplink transmission angle based on the phases corresponding to the at least three antenna ports.
  • the access network device determines the uplink transmission angle based on the phases corresponding to at least three antenna ports and the related information between the at least three antenna ports in step 1301.
  • Step 1304 The network unit uses the uplink transmission angle to determine the posture of the terminal device.
  • the network unit can use artificial intelligence AI positioning, fingerprint positioning, multi-path assisted positioning, etc. to position the terminal device based on the uplink transmission angle.
  • the network unit uses the trained AI network and the uplink emission angle received from the access network device to calculate the attitude of the terminal device.
  • the network unit uses the trained AI network, uplink launch angle, and uplink launch angle The corresponding path is used to calculate the attitude of the terminal device.
  • step 1305 The network unit sends posture information to the terminal device.
  • the terminal device receives posture information from the network unit.
  • the posture information indicates the posture of the terminal device.
  • the posture information is based on the uplink transmission. Angle determined.
  • the attitude of the terminal device has a wide range of uses. Generally, a single antenna port can be used to receive reference signals sent by multiple antenna ports and measure the phase to estimate the UE attitude. This application proposes to use the uplink emission angle to determine the attitude of the terminal device, and proposes a method for determining the attitude of the terminal device.
  • the uplink emission angle is used as the fingerprint feature, and the AI network learns the relationship between the fingerprint features and the UE posture, which can avoid inaccurate posture determination in severe NLOS transmission environments.
  • the phase corresponding to each of the at least three antenna ports includes a phase corresponding to at least one path
  • the uplink emission angle is an uplink emission angle on the same path, which can be understood as The uplink emission angle is determined based on the phase on the same path. Taking into account the upward launch angles on multiple paths, the accuracy of attitude determination can be improved.
  • the UL-AOD reported by the access network equipment of this application to the network unit can be the result of measurement on a single path or multiple paths.
  • the protocol can stipulate which path or paths the uplink emission angle should be considered when positioning the terminal equipment. If the network unit or access network equipment has no special requirements, it can be operated in accordance with the protocol. Of course, the protocol may not stipulate this, or the network unit or access network equipment may have special requirements. In this case, the network element unit and the access network equipment may communicate and negotiate which path(s) the uplink emission angle should be considered.
  • the information used to indicate the path corresponding to the uplink transmission angle is called seventh information.
  • the seventh information may also be called a multipath measurement indication, which indicates the measurement result of which path each uplink transmission angle belongs to.
  • the access network device sends the seventh information to the network unit, and accordingly, the network unit receives the seventh information from the access network device, where the seventh information indicates the path corresponding to the uplink transmission angle.
  • the access network device notifies the network unit of the path information through the seventh information, so that the network unit can more accurately determine the posture of the terminal device after knowing it.
  • the seventh information and the uplink transmission angle may be sent to the network unit in the same message or different messages. As shown in step 1303 of Figure 13, the seventh information (ie, multipath measurement indication) and the uplink transmission angle are sent to the network unit in the same message.
  • the network unit sends the seventh information to the access network device.
  • the access network device receives the seventh information from the network unit.
  • the seventh information indicates the path corresponding to the uplink transmission angle, which can be understood as the seventh information.
  • the network unit uses the seventh information to tell the access network device to determine the uplink transmission angle on which path or paths, so that when the access network device measures the reference signal from the terminal device, it can based on the seventh information (i.e.
  • the path indicated by the seventh information measures the reference signal from the terminal device.
  • the access network device reports the uplink emission angle to the network unit, it can still indicate the path corresponding to the uplink emission angle again.
  • the access network device may indicate the path corresponding to the uplink emission angle according to the seventh information.
  • the uplink emission angle is reported in the order of the path, so that there is no need to indicate the path corresponding to the uplink emission angle again.
  • Step 1303a The network unit sends the seventh information to the access network device, and accordingly, the access network device receives the seventh information from the network unit.
  • Step 1303b The access network device measures the uplink reference signal according to the seventh information in step 1303a, and sends the measured uplink transmission angle to the network unit.
  • step 1303a precedes step 1302, and the seventh information may be configuration information.
  • the network unit first configures the access network device, and then the access network device measures the uplink reference signal according to the configuration of the network unit.
  • step 1303a may also follow step 1302. In this way, the access network device may first comprehensively measure the uplink reference signal, but when reporting subsequently, only the uplink transmission angle related to the seventh information is reported.
  • the terminal device when the terminal device sends information to the network unit or the network unit sends information to the terminal device, the information can be carried in an LPP message or other types of messages.
  • the two terminal devices when the network unit is a terminal device, the two terminal devices can communicate through PC5 -RRC or V5 messages transmit information; for another example, when the network unit is a V2X application server, information can be transmitted through V1 messages.
  • This information includes but is not limited to one or more of the following: downward angle of arrival, fifth information, sixth information, and measurement capability information.
  • the access network device sends information to the network unit or the network unit sends information to the access network device, the information can be carried in the NRPPa message.
  • This information includes but is not limited to one or more of the following: uplink transmission angle, seventh information.
  • the information can be carried in the RRC message.
  • the information includes but is not limited to one or more of the following: Sixth information.
  • the method in the embodiment of the present application is introduced above, and the device in the embodiment of the present application will be introduced below.
  • the method and the device are conceived based on the same technology. Since the principles of the method and the device in solving problems are similar, the implementation of the device and the method can be referred to each other, and the repeated points will not be repeated.
  • Embodiments of the present application can divide the device into functional modules according to the above method examples.
  • the device can be divided into functional modules corresponding to each function, or two or more functions can be integrated into one module.
  • These modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods during specific implementation.
  • the device 1400 may include: a processing module 1410, optionally, a receiving module 1420a, a sending module 1420b, and a storage module 1430 .
  • the processing module 1410 can be connected to the storage module 1430, the receiving module 1420a, and the sending module 1420b respectively.
  • the storage module 1430 can also be connected to the receiving module 1420a and the sending module 1420b.
  • the above-mentioned receiving module 1420a and sending module 1420b can also be integrated together and defined as a transceiving module.
  • the device 1400 may be a first device, or may be a chip or functional unit applied in the first device.
  • the device 1400 has any functions of the first device in the above-mentioned method.
  • the device 1400 can perform various steps performed by the first device in the above-mentioned methods of FIGS. 4 to 13 .
  • the receiving module 1420a can perform the receiving action performed by the first device in the above method embodiment.
  • the sending module 1420b can perform the sending action performed by the first device in the above method embodiment.
  • the processing module 1410 may perform other actions except sending actions and receiving actions among the actions performed by the first device in the above method embodiment.
  • the first device is a terminal device
  • the second device is an access network device:
  • the receiving module 1420a is used to receive a reference signal from the access network device; the processing module 1410 is used to measure the reference signal from the access network device to obtain phase information; phase information For positioning; the sending module 1420b is used for sending the phase information to the network unit;
  • the sending module 1420b is further configured to send first information to the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between the adjacent antenna ports.
  • the receiving module 1420a is further configured to receive first information from the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between adjacent antenna ports.
  • the receiving module 1420a is further configured to receive second information from the access network device or the network unit, where the second information indicates the antenna spacing ratio of the access network device, so The antenna spacing ratio is used to determine the weight value of the phase difference between the adjacent antenna ports, and the at least two antenna ports are antenna ports in the access network device.
  • the sending module 1420b is further configured to send third information to the network unit, where the third information indicates the path corresponding to the weighted average of the phase difference between the antenna ports and/or the The path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the receiving module 1420a is further configured to receive third information from the network unit, where the third information indicates the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port; the processing module 1410 is specifically configured to measure the reference signal from the access network device based on the third information.
  • the sending module 1420b is further configured to send fourth information to the network unit, where the fourth information indicates the reference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Antenna port.
  • the receiving module 1420a is further configured to receive fourth information from the network unit, the fourth information indicating the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Reference antenna port.
  • the sending module 1420b is further configured to send measurement capability information to the network unit, where the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: supporting measurement of multiple The phase of the antenna port does not support the measurement of the phase of multiple antenna ports, supports the measurement of the phase difference between multiple antenna ports, or does not support the measurement of the phase difference between multiple antenna ports, or supports the measurement of the phase difference between the reference antenna port and the non-reference antenna port.
  • the phase difference either does not support measuring the phase difference between the reference antenna port and the non-reference antenna port, supports measuring the weighted average of the phase difference between adjacent antenna ports, or does not support measuring the weighted average of the phase difference between adjacent antenna ports, the measured The number of antenna ports, the number of measured access network devices, the number of measured paths, and the number of measured antenna directions.
  • the first device is an access network device
  • the second device is a terminal device:
  • the receiving module 1420a is used to receive a reference signal from a terminal device; the processing module 1410 is used to measure the reference signal from the terminal device to obtain phase information; the phase information is used to Positioning; the sending module 1420b is used to send the phase information to the network unit;
  • the sending module 1420b is further configured to send first information to the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between the adjacent antenna ports.
  • the receiving module 1420a is further configured to receive first information from the network unit, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between adjacent antenna ports.
  • the receiving module 1420a is also configured to receive second information from the terminal device or the network unit, the second information indicating the antenna spacing ratio of the terminal device, and the antenna spacing ratio A weight value used to determine the phase difference between adjacent antenna ports, the at least two antenna ports being antenna terminals in the terminal device mouth.
  • the sending module 1420b is further configured to send third information to the network unit, where the third information indicates the path corresponding to the weighted average of the phase difference between the antenna ports and/or the The path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the receiving module 1420a is further configured to receive third information from the network unit, where the third information indicates the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the path corresponding to the phase difference between the reference antenna port and the non-reference antenna port; the processing module 1410 is specifically configured to measure the reference signal from the terminal device based on the third information.
  • the sending module 1420b is further configured to send fourth information to the network unit, where the fourth information indicates the reference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Antenna port.
  • the receiving module 1420a is further configured to receive fourth information from the network unit, the fourth information indicating the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Reference antenna port.
  • the storage module 1430 can store computer execution instructions for the method executed by the first device, so that the processing module 1410, the receiving module 1420a and the sending module 1420b execute the method executed by the first device in the above example.
  • the storage module may include one or more memories, and the memories may be devices used to store programs or data in one or more devices or circuits.
  • the storage module can be a register, cache or RAM, etc., and the storage module can be integrated with the processing module.
  • the storage module can be a ROM or other types of static storage devices that can store static information and instructions, and the storage module can be independent from the processing module.
  • the transceiver module may be an input or output interface, a pin or a circuit, etc.
  • the device 1400 may be a network unit, or may be a chip or functional unit applied in the network unit.
  • the device 1400 has any functions of the network unit in the above-mentioned method.
  • the device 1400 can perform various steps performed by the network unit in the above-mentioned methods of FIG. 4 to FIG. 13 .
  • the receiving module 1420a can perform the receiving action performed by the network unit in the above method embodiment.
  • the sending module 1420b can perform the sending action performed by the network unit in the above method embodiment.
  • the processing module 1410 may perform other actions except sending actions and receiving actions among the actions performed by the network unit in the above method embodiment.
  • the receiving module 1420a is configured to receive phase information from the first device; the phase information is obtained by the first device measuring the reference signal from the second device; the phase information includes : the weighted average of the phase differences between the antenna ports in at least two antenna ports, and/or the phase difference between the reference antenna port and the non-reference antenna port in at least two antenna ports; wherein, the at least two antennas The ports are at least two antenna ports in the first device or the second device; the processing module 1410 is used to use the phase information to position the terminal device.
  • the sending module 1420b is further configured to send first information to the first device, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between the adjacent antenna ports.
  • the receiving module 1420a is further configured to receive first information from the first device, where the first information indicates the antenna direction corresponding to the weighted average of the phase differences between adjacent antenna ports.
  • the receiving module 1420a is also configured to receive the second information from the second device and send it to the The first device sends the second information, the second information indicates the antenna spacing ratio of the second device, the antenna spacing ratio is used to determine the weight value of the phase difference between the adjacent antenna ports, and the at least The two antenna ports are antenna ports in the second device.
  • the sending module 1420b is further configured to send third information to the first device, where the third information indicates the path corresponding to the weighted average of the phase difference between the antenna ports and/or the The path corresponding to the phase difference between the reference antenna port and the non-reference antenna port.
  • the receiving module 1420a is further configured to receive third information from the first device, where the third information indicates the path and/or the path corresponding to the weighted average of the phase difference between the antenna ports.
  • the sending module 1420b is further configured to send fourth information to the first device, where the fourth information indicates the reference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Antenna port.
  • the receiving module 1420a is further configured to receive fourth information from the first device, where the fourth information indicates the phase difference corresponding to the phase difference between the reference antenna port and the non-reference antenna port. Reference antenna port.
  • the receiving module 1420a is also configured to receive measurement capability information from the terminal device, where the measurement capability information is used to indicate one or more of the following capabilities of the terminal device: supporting measurement of multiple The phase of the antenna port does not support the measurement of the phase of multiple antenna ports, supports the measurement of the phase difference between multiple antenna ports, or does not support the measurement of the phase difference between multiple antenna ports, or supports the measurement of the phase difference between the reference antenna port and the non-reference antenna port.
  • the phase difference either does not support measuring the phase difference between the reference antenna port and the non-reference antenna port, supports measuring the weighted average of the phase difference between adjacent antenna ports, or does not support measuring the weighted average of the phase difference between adjacent antenna ports, the measured The number of antenna ports, the number of measured access network devices, the number of measured paths, and the number of measured antenna directions.
  • the processing module 1410 is specifically configured to position the terminal device based on artificial intelligence AI positioning, fingerprint positioning, or multipath assisted positioning, and use the phase information.
  • the storage module 1430 can store computer execution instructions for the method executed by the network unit, so that the processing module 1410, the receiving module 1420a and the sending module 1420b execute the method executed by the network unit in the above example.
  • the storage module may include one or more memories, and the memories may be devices used to store programs or data in one or more devices or circuits.
  • the storage module can be a register, cache or RAM, etc., and the storage module can be integrated with the processing module.
  • the storage module can be a ROM or other types of static storage devices that can store static information and instructions, and the storage module can be independent from the processing module.
  • the transceiver module may be an input or output interface, a pin or a circuit, etc.
  • the device can be implemented by a general bus architecture.
  • a schematic block diagram of a communication device 1500 is provided.
  • the device 1500 may include a processor 1510 and, optionally, a transceiver 1520 and a memory 1530.
  • the transceiver 1520 can be used to receive programs or instructions and transmit them to the processor 1510, or the transceiver 1520 can be used to communicate and interact with other communication devices between the device 1500, such as interactive control signaling and/or services. Data etc.
  • the transceiver 1520 may be a code and/or data read and write transceiver, or the transceiver 1520 may be a signal transmission transceiver between a processor and a transceiver.
  • the processor 1510 and the memory 1530 are electrically coupled.
  • the device 1500 may be a first device, or may be a chip applied in the first device. It should be understood that this device has any function of the first device in the above method.
  • the device 1500 can perform the above Various steps performed by the first device in the methods of Figures 4 to 13.
  • the memory 1530 is used to store computer programs; the processor 1510 can be used to call the computer program or instructions stored in the memory 1530 to execute the method executed by the first device in the above example, or through the The transceiver 1520 performs the method performed by the first device in the above example.
  • the device 1500 may be a network unit or a chip applied in the network unit. It should be understood that the device has any functions of the network unit in the above method. For example, the device 1500 can perform various steps performed by the network unit in the above method of FIGS. 4 to 13 .
  • the memory 1530 is used to store computer programs; the processor 1510 can be used to call the computer program or instructions stored in the memory 1530 to execute the method performed by the network unit in the above example, or through the The transceiver 1520 performs the method performed by the network element in the above example.
  • the processing module 1410 in Figure 14 can be implemented by the processor 1510.
  • the receiving module 1420a and the sending module 1420b in Figure 14 can be implemented by the transceiver 1520.
  • the transceiver 1520 is divided into a receiver and a transmitter, the receiver performs the function of the receiving module, and the transmitter performs the function of the transmitting module.
  • the storage module 1430 in Figure 14 can be implemented through the memory 1530.
  • the device can be implemented by a general-purpose processor (a general-purpose processor can also be called a chip or a chip system).
  • a general-purpose processor can also be called a chip or a chip system.
  • the processing module 1410 in Figure 14 can be implemented by a processing circuit.
  • the receiving module 1420a and the sending module 1420b in Figure 14 can be implemented through input and output interfaces.
  • the input and output interface is divided into an input interface and an output interface.
  • the input interface performs the function of the receiving module
  • the output interface performs the function of the sending module.
  • the storage module 1430 in Figure 14 can be implemented through a storage medium.
  • the device of the embodiment of the present application can also be implemented using the following: one or more FPGAs (Field Programmable Gate Arrays), PLDs (Programmable Logic Devices), controllers, state machines, gate logic, discrete hardware components, any other suitable circuit, or any combination of circuits capable of performing the various functions described throughout this application.
  • FPGAs Field Programmable Gate Arrays
  • PLDs Programmable Logic Devices
  • controllers state machines, gate logic, discrete hardware components, any other suitable circuit, or any combination of circuits capable of performing the various functions described throughout this application.
  • Embodiments of the present application also provide a computer-readable storage medium that stores a computer program.
  • the computer program When executed by a computer, it can cause the computer to perform the above communication method.
  • the computer program includes instructions for implementing the above communication method.
  • An embodiment of the present application also provides a computer program product, which includes: computer program code.
  • computer program product which includes: computer program code.
  • the computer program code When the computer program code is run on a computer, the computer can execute the communication method provided above.
  • An embodiment of the present application also provides a communication system, which includes: a first device that performs the above communication method and a network unit.
  • the processor mentioned in the embodiments of this application may be a central processing unit (CPU), a baseband processor.
  • the baseband processor and the CPU may be integrated together or separated, or may be a network processor (network processor).
  • processor, NP network processor
  • the processor may further include a hardware chip or other general-purpose processor.
  • the above-mentioned hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) and other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. or any combination thereof.
  • CPLD complex programmable logic device
  • FPGA field-programmable gate array
  • GAL general array logic
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory may be read-only memory (Read-OnlyMemory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable memory Except programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the transceiver mentioned in the embodiment of this application may include a separate transmitter and/or a separate receiver, or the transmitter and receiver may be integrated.
  • the transceiver can work under the instructions of the corresponding processor.
  • the transmitter can correspond to the transmitter in the physical device
  • the receiver can correspond to the receiver in the physical device.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or part of the contribution, or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes several The instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande, qui relève du domaine technique des communications, concerne un procédé de communication et un appareil, qui sont utilisés pour améliorer la précision de positionnement d'un dispositif terminal. Un premier dispositif réalise une mesure sur un signal de référence provenant d'un second dispositif pour obtenir des informations de phase, les informations de phase étant utilisées aux fins de positionnement ; ensuite le premier dispositif transmet les informations de phase à une unité de réseau ; les informations de phase comprennent mais sans y être limitées : une valeur moyenne pondérée de différences de phase entre des ports d'antenne parmi au moins deux ports d'antenne, et/ou une différence de phase entre un port d'antenne de référence et un port d'antenne non de référence parmi au moins deux ports d'antenne ; les deux ports d'antenne ou plus sont au moins deux ports d'antenne dans le premier dispositif ou dans le second dispositif ; le premier dispositif est un dispositif terminal et le second dispositif est un dispositif de réseau d'accès ; ou le premier dispositif est un dispositif de réseau d'accès et le second dispositif est un dispositif terminal. Des informations de phase sont déterminées au moyen de phases d'au moins deux ports d'antenne, et un positionnement est réalisé au moyen des informations de phase, ce qui met en œuvre un positionnement précis d'un dispositif terminal.
PCT/CN2023/078669 2022-03-11 2023-02-28 Procédé de communication et appareil WO2023169253A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014107012A1 (fr) * 2013-01-02 2014-07-10 Lg Electronics Inc. Procédé et appareil de réception d'un signal radio en liaison descendante
US20180017661A1 (en) * 2015-02-18 2018-01-18 Sony Corporation Communications device, infrastructure equipment, mobile communications network and methods
CN111246589A (zh) * 2018-11-28 2020-06-05 华为技术有限公司 一种随机接入信号发送方法及装置
WO2021240477A1 (fr) * 2020-05-29 2021-12-02 Lenovo (Singapore) Pte. Ltd. Notification de mesures de positionnement
CN115529661A (zh) * 2021-06-25 2022-12-27 维沃移动通信有限公司 定位处理方法、定位参考信号发送方法、装置及设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014107012A1 (fr) * 2013-01-02 2014-07-10 Lg Electronics Inc. Procédé et appareil de réception d'un signal radio en liaison descendante
US20180017661A1 (en) * 2015-02-18 2018-01-18 Sony Corporation Communications device, infrastructure equipment, mobile communications network and methods
CN111246589A (zh) * 2018-11-28 2020-06-05 华为技术有限公司 一种随机接入信号发送方法及装置
WO2021240477A1 (fr) * 2020-05-29 2021-12-02 Lenovo (Singapore) Pte. Ltd. Notification de mesures de positionnement
CN115529661A (zh) * 2021-06-25 2022-12-27 维沃移动通信有限公司 定位处理方法、定位参考信号发送方法、装置及设备

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