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    METHODS AND APPARATUSES FOR CONCURRENT ENVIRONMENT SENSING AND DEVICE SENSING
    1.
    发明公开
    METHODS AND APPARATUSES FOR CONCURRENT ENVIRONMENT SENSING AND DEVICE SENSING 审中-公开

    公开(公告)号：US20240219510A1

    公开(公告)日：2024-07-04

    申请号：US18603153

    申请日：2024-03-12

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： ALIREZA BAYESTEH ,  AHMED WAGDY SHABAN ,  NAVID TADAYON ,  JIANGLEI MA

    IPC分类号： G01S5/02

    CPC分类号： G01S5/02525 ,  G01S5/02523 ,  G01S5/02529

    摘要： Some embodiments of the present disclosure provide a manner to enabling high-resolution sensing, localization, imaging, and environment reconstruction capabilities in a wireless communication system. A radio frequency (RF) map of the environment includes coarse location and orientation information for at least one reflector and at least one targeted device of the wireless communication system. A fine sensing procedure may involve using the information in the RF map to carry out sensing in a more limited region of the environment. The second stage may employ a sensing signal configuration provided to at least one device to be sensed in the limited region, so that the at least one device may assist in the sensing.

    Ranging method
    3.
    发明授权
    Ranging method 有权

    公开(公告)号：US11953612B2

    公开(公告)日：2024-04-09

    申请号：US17338971

    申请日：2021-06-04

    申请人： Stichting IMEC Nederland

    发明人： Lichen Yao ,  Pepijn Boer ,  Jac Romme

    IPC分类号： G01S13/84 ,  G01S5/02 ,  H04B17/318

    CPC分类号： G01S5/0246 ,  G01S5/02525 ,  G01S5/0268 ,  H04B17/318

    摘要： A method of ranging between a first and a second radio signal transceiver comprises calculating a preliminary estimate of a value proportional to a one-way frequency domain channel response, for a frequency of a plurality of frequencies and for each of a first antenna combination and a second antenna combination of a plurality of antenna combinations; calculating a comparison value for the preliminary estimate, for the frequency and for each of the first antenna combination and the second antenna combination; determining, for the frequency and the first antenna combination, a corrected estimate of the value proportional to the one-way frequency domain channel response based on the preliminary estimate and the comparison value, for the first antenna combination and the second antenna combination; and performing a ranging calculation between the first and the second radio signal transceiver based on a plurality of such corrected estimates.

    Electric field map generation device, method, program, and localization device
    6.
    发明授权
    Electric field map generation device, method, program, and localization device 有权

    公开(公告)号：US11689301B2

    公开(公告)日：2023-06-27

    申请号：US17054415

    申请日：2019-04-22

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Hirofumi Abe ,  Keihiro Ochiai ,  Hitoshi Seshimo

    IPC分类号： H04B17/318 ,  G01S5/02 ,  H04W64/00

    CPC分类号： H04B17/318 ,  G01S5/02524 ,  G01S5/02525 ,  H04W64/00

    摘要： Time and effort to generate an electric field map to realize high-accuracy positioning is reduced. In an electric field map generation device (10) that generates an electric field map in which RSSI obtained when radio waves transmitted from a beacon (60) are observed at each of a plurality of points in the same space is associated with each of coordinates at the plurality of points, a radio wave strength acquisition unit (12) acquires RSSI observed at each of at least three observation points different in distance from the beacon (60), a space propagation characteristics estimation unit (14) estimates space propagation characteristics of the radio waves transmitted from the beacon (60) in the same space using the acquired RSSI at the observation points, a radio wave strength estimation unit (16) estimates RSSI at estimation points on the basis of the estimated space propagation characteristics and distances between the estimation points different from the observation points and the beacon (60), and a generation unit (18) generates the electric field map (26) using the RSSI at the observation points and the estimation points.

    USER DEVICE LOCATION ESTIMATION
    8.
    发明公开
    USER DEVICE LOCATION ESTIMATION 审中-公开

    公开(公告)号：US20240168124A1

    公开(公告)日：2024-05-23

    申请号：US18552231

    申请日：2021-03-24

    申请人： NOKIA SOLUTIONS AND NETWORKS OY

    发明人： Lei NIU

    IPC分类号： G01S5/02 ,  G01S5/00 ,  H04B17/318

    CPC分类号： G01S5/02525 ,  G01S5/0063 ,  H04B17/328

    摘要： A method, apparatus and computer program is described comprising: collecting mobile communication fingerprint data for signals between a user device and a plurality of communication nodes of a mobile communication system; organising the collected data into a feature matrix, wherein the feature matrix includes a user device location associated with each set of fingerprint data; generating a binomial expression of the system based on the collected data; processing the binomial expression (e.g. using a factorisation machine) to generate a reduced dimension binomial expression model; and calculating gradients and updating parameters of the reduced dimensional binomial expression model based on said gradients.

    TIMING ERROR ESTIMATION
    9.
    发明公开
    TIMING ERROR ESTIMATION 审中-公开

    公开(公告)号：US20240142562A1

    公开(公告)日：2024-05-02

    申请号：US18051782

    申请日：2022-11-01

    申请人： QUALCOMM Incorporated

    发明人： Marwen ZORGUI ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Mohammed Ali Mohammed Hirzallah

    IPC分类号： G01S5/02 ,  H04B17/364 ,  H04W24/10

    CPC分类号： G01S5/02525 ,  H04B17/364 ,  H04W24/10

    摘要： A signal time delay estimation method includes: obtaining, at an apparatus, a plurality of RFFPs (radio frequency fingerprints) each based on a plurality of signal measurements of respective signals transferred between respective ones of a plurality of wireless signal transfer devices; obtaining, at the apparatus, a plurality of locations corresponding to the plurality of wireless signal transfer devices; and implementing, at the apparatus, a machine-learning algorithm to provide at least one first indication of at least one first signal time delay to convert between a first wireless signal at a target device, of the plurality of wireless signal transfer devices, and a first baseband signal at the target device based on the plurality of RFFPs and the plurality of locations.

    NETWORK-ASSISTED AND ROUND-TRIP RADIO FREQUENCY FINGERPRINT-BASED (RFFP) POSITION ESTIMATION
    10.
    发明公开
    NETWORK-ASSISTED AND ROUND-TRIP RADIO FREQUENCY FINGERPRINT-BASED (RFFP) POSITION ESTIMATION 审中-公开

    公开(公告)号：US20230354248A1

    公开(公告)日：2023-11-02

    申请号：US18192937

    申请日：2023-03-30

    申请人： QUALCOMM Incorporated

    发明人： Mohammed Ali Mohammed HIRZALLAH ,  Srinivas YERRAMALLI ,  Taesang YOO ,  Rajat PRAKASH

    IPC分类号： H04W64/00 ,  H04L5/00 ,  G01S5/02

    CPC分类号： H04W64/00 ,  H04L5/0051 ,  G01S5/02525

    摘要： In an aspect, a user equipment (UE) transmits an uplink reference signal for positioning (RS-P) to one or more transmission reception points (TRPs). The TRP(s) or an location management function (LMF) extracts features from one or more uplink radio frequency fingerprint (RFFPs) of the uplink RS-P by one or more network components via one or more network-based machine learning (ML) feature extraction models, and sends the extracted features to the UE for position estimation. Other aspects are directed to UE-based round-trip RFFP position estimation session of a UE. Other aspects are directed to network-based round-trip RFFP position estimation of a UE. The UE-based round-trip RFFP position estimation and the network-based round-trip RFFP position estimation may be based on an uplink RFFP (e.g., SRS) of an uplink reference signal for positioning (RS-P) and a downlink RFFP of a downlink RS-P (e.g., DL PRS)