公开(公告)号：US12078740B2

公开(公告)日：2024-09-03

申请号：US17431197

申请日：2020-02-19

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Johannes Arnoldus Cornelis Bernsen ,  Franciscus Antonius Maria Van De Laar

IPC: G01S5/02 ,  G01S11/08 ,  H04W4/02 ,  H04W12/63

CPC classification number: G01S5/0244 ,  G01S5/0236 ,  G01S11/08 ,  H04W4/023 ,  H04W12/63

Abstract: A device is arranged for determining a first distance according to a ranging protocol using a measurement message from a second device. A cooperating device (130) has a directional antenna (133) and is located at a trusted distance (150) sharing a connecting direction (160) with the first device. The cooperating device determines a third direction of the same measurement message, and transfers support data to the first device based on the third direction. The first device first determines a first angle (161) between the first direction and the connecting direction and obtains a third angle (163) between the third direction and the connecting direction using the support data. Then a verification test is performed on the first distance (151), the trusted distance (150), the first and the third angle. The first distance is reliable when said distances and angles correspond to a viable spatial constellation (100) of the devices.

公开(公告)号：US20240183965A1

公开(公告)日：2024-06-06

申请号：US18061510

申请日：2022-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jacob Christopher Sharpe ,  Fei Tong

IPC: G01S11/08

CPC classification number: G01S11/08

Abstract: A one way ranging method estimates a distance between first and second wireless devices using a technique that involves exchanging dual tone RF signals between the devices and, at each of the first and second devices, maintaining “baseband coherence” between baseband signals carried by the RF signals transmitted and received by each respective device.

公开(公告)号：US11800483B2

公开(公告)日：2023-10-24

申请号：US17471455

申请日：2021-09-10

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Fredrik Gunnarsson ,  Sara Modarres Razavi ,  Henrik Rydén ,  Meng Wang ,  Ali Zaidi

IPC: H04W64/00 ,  G01S1/20 ,  G01S5/10 ,  G01S1/04 ,  G01S5/02 ,  H04L67/04 ,  G01S11/08

CPC classification number: H04W64/003 ,  G01S1/045 ,  G01S1/20 ,  G01S5/02213 ,  G01S5/10 ,  H04L67/04 ,  H04W64/00 ,  G01S11/08

Abstract: A method, apparatus, and system are provided for facilitating positioning based on signal correlation function characteristic feedback. In an embodiment, the method may involve steps performed by a network node in communication with a wireless communication device (WCD) and a plurality of base stations. The network node receives, from the WCD, location information including position reference signal (PRS) correlation function characteristics of a cross-correlation between a received downlink signal and a transmitted PRS for each base station from the plurality of base stations. The network node determines a position of the WCD using the PRS correlation function characteristics. The WCD may initiate the transmission of the PRS correlation function characteristics on its own, or in response to a request to do so from the network node.

公开(公告)号：US20190219665A1

公开(公告)日：2019-07-18

申请号：US16246354

申请日：2019-01-11

Applicant: REDPOINT POSITIONING CORPORATION

Inventor： Zhenzhen Ye ,  Chunjie Duan ,  Georgiy Pekhteryev

IPC: G01S5/14 ,  H04W64/00 ,  G01S5/10 ,  G01S11/08

CPC classification number: G01S5/14 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/021 ,  G01S5/0221 ,  G01S5/0247 ,  G01S5/10 ,  G01S11/08 ,  H04W64/00 ,  H04W64/003

Abstract: Systems and methods for locating a position of a target object are provided. The target object can be equipped with a plurality of spatially distributed antennas, and can be located within a network of a plurality of anchors at fixed locations. A plurality of anchor pairs can be assigned. Each anchor pair can include at least two anchors. The anchor pairs can transmit and receive range request (REQ) and range response (RSP) packets. The REQ and RSP packets can be received by the antennas on the target object. Distance differences between the target object to the first anchor and from the target object to the second anchor of each anchor pair can be estimated, based on times at which the REQ packet and the RSP packet are received at the target object. The position of the target object can be estimated based on the distance differences.

公开(公告)号：US20190041508A1

公开(公告)日：2019-02-07

申请号：US15870530

申请日：2018-01-12

Applicant: Intel Corporation

Inventor： Raghavendra R. ,  RAGHAVENDRA BHAT ,  VISWANATH DIBBUR

IPC: G01S11/08 ,  G06K19/07 ,  G01S5/02 ,  G01S5/14

CPC classification number: G01S11/08 ,  G01S5/021 ,  G01S5/0289 ,  G01S5/14 ,  G06K19/0701

Abstract: Various systems and methods for determining a distance between a master device and a slave device based, at least in part, on a received signal strength and based, at least in part, on a time interval including generation of a master ranging symbol and detection of a slave ranging symbol.

公开(公告)号：US20180231648A1

公开(公告)日：2018-08-16

申请号：US15750275

申请日：2016-08-08

Applicant: ZTE CORPORATION

Inventor： Wenfeng ZHANG

IPC: G01S11/08 ,  G01S13/76 ,  H04W64/00

CPC classification number: G01S11/08 ,  G01S5/0036 ,  G01S5/0289 ,  G01S13/74 ,  G01S13/76 ,  H04W64/00 ,  H04W64/003 ,  H04W76/14

Abstract: New method for measuring UE-to-UE distance based on D2D sidelink channel or signal. The network configures the two UEs to perform both transmission and reception of D2D sidelink channel or signal; the UEs determine in time domain the cycle boundaries of the same cycle duration and use the cycle boundaries as the timing references to measure transmission timing and receiving timing; each UE reports to network one transmission timing and one or more receiving timings, or one or more modulo transmission-to-reception time differences; each UE reports to network one transmission identity associated with transmitted D2D sidelink channel or signal and one or more transmission identities each of which associated with a received D2D sidelink channel or signal; the network obtaining the reports from the two UEs matches the timing information based on the associated transmission identities and calculates the UE-to-UE distance based on the matched timing information.

公开(公告)号：US10009430B2

公开(公告)日：2018-06-26

申请号：US15086108

申请日：2016-03-31

Applicant: INTEL IP CORPORATION

Inventor： Elad Eyal ,  Jonathan Segev ,  Itai Steiner

IPC: H04W24/10 ,  H04L12/26 ,  H04L29/08 ,  H04W12/06 ,  H04W64/00

CPC classification number: H04L67/18 ,  G01S5/00 ,  G01S5/02 ,  G01S11/08 ,  G06F21/44 ,  G06F21/725 ,  H04L43/0864 ,  H04W4/025 ,  H04W12/12 ,  H04W64/00

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of Fine Timing Measurement (FTM). For example, an apparatus may include circuitry and logic configured to cause an initiator station to process an FTM message received from a responder station, the first FTM message comprising a first field comprising a first Message Authentication Code (MAC); to process a second FTM message comprising the first field, a second field, and an FTM time value corresponding to the first FTM message, the first field comprising a second MAC, and the second field comprising the first MAC; and to determine whether or not to use the FTM time value for an FTM measurement, based on an authentication of the responder station according to the second MAC.

公开(公告)号：US09880258B2

公开(公告)日：2018-01-30

申请号：US15165271

申请日：2016-05-26

Applicant: VODAFONE IP LICENSING LIMITED

Inventor： Brendan Ludden

IPC: G01S5/02 ,  G01S5/00 ,  H04W4/02 ,  H04W64/00 ,  G01S11/08

CPC classification number: G01S5/0294 ,  G01S5/00 ,  G01S5/0027 ,  G01S11/08 ,  H04W4/029 ,  H04W64/00

Abstract: A method, apparatus and computer program are provided for estimating a characteristic static location of a user equipment in a wireless communication network comprising a plurality of network nodes for transmitting radio signals. Each network node has an associated cell corresponding to a predicted geographical coverage area of a corresponding transmitted radio signal. Location event data for the user equipment provides a cell-specific location for the user equipment at a point in time. A plurality of event frequencies is determined for the user equipment, each corresponding to a cumulative number of received location events locating the user equipment in a respective cell/sector in a given time interval. A characteristic static location is calculated using a combined measure of at least two non-zero values of the plurality of event frequencies corresponding respectively to at least two different cells or sectors.

公开(公告)号：US09867004B2

公开(公告)日：2018-01-09

申请号：US15080337

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Ning Zhang ,  James Simon Cho ,  Xiaoxin Zhang

IPC: H04W24/00 ,  H04W4/02 ,  H04W56/00 ,  H04L27/26 ,  G01S5/14

CPC classification number: H04W4/023 ,  G01S5/021 ,  G01S5/14 ,  G01S11/08 ,  G01S19/48 ,  H04L27/266 ,  H04W4/02 ,  H04W56/0015 ,  H04W56/0025

Abstract: Disclosed herein are techniques for range measurement between one or more wireless stations (STAs) and a first access point (AP). In various embodiments, the first AP may synchronize a clock of the first AP with clocks of one or more synchronized APs. The first AP may perform a synchronization session with the one or more STAs. The first AP may also transmit one or more Broadcast time-of-departure (TOD) frames to the one or more STAs. Each of the one or more Broadcast TOD frames may include a time of departure of a Broadcast TOD frame from the first AP. A second AP and a third AP of the one or more synchronized APs may also transmit one or more Broadcast TOD frames to the one or more STAs for range and/or position determination.

公开(公告)号：US09804254B2

公开(公告)日：2017-10-31

申请号：US15026997

申请日：2014-09-26

Applicant: TRUE HEADING AB

Inventor： Nils Willart ,  Bengt Johansson ,  Anders Bergström

IPC: H04L27/00 ,  G01S5/02 ,  G01S5/14 ,  G01S11/08 ,  G08G3/02 ,  H04B1/59 ,  H04L27/06 ,  H04L29/06 ,  H04W4/02

CPC classification number: G01S5/0221 ,  G01S5/14 ,  G01S11/08 ,  G08G3/02 ,  H04B1/59 ,  H04L27/06 ,  H04L29/06 ,  H04W4/025

Abstract: A method for determining the time of receipt by a radio receiver of a binary coded radio message emitted by a sender. A radio signal containing the message is received by the receiver. An analog electrical signal is generated, sampled and optionally demodulated. The data content of the message is determined based upon the demodulated signal as a stream of data bits. The stream of data bits comprises a predetermined signal element whose time of receipt is determined. A digitally stored, constructed comparison signal is created based upon the stream of data bits. The constructed comparison signal is constructed to correspond to the sampled signal, in that a time variable which maximizes a correlation between the constructed comparison signal and the sampled signal is determined, and in that the time variable is then used to correct the time determination of the receipt of the predetermined signal element.