公开(公告)号：US20190215662A1

公开(公告)日：2019-07-11

申请号：US16356285

申请日：2019-03-18

申请人： Position Imaging, Inc.

发明人： Guohua Min ,  Edward L. Hill

IPC分类号： H04W4/029 ,  H04W4/02 ,  H04L29/08 ,  G01S5/02 ,  G01S5/10

CPC分类号： H04W4/029 ,  G01S5/0242 ,  G01S5/0289 ,  G01S5/10 ,  H04L67/34 ,  H04W4/023

摘要： Position tracking systems and methods for tracking a physical location of a radio frequency (RF) transmitter include an RF transmitter transmitting an RF signal from a plurality of known locations. At least three RF receiver antennae are disposed at undetermined locations within range of the RF transmitter to receive the RF signals transmitted from the plurality of known locations. A receiver station in communication with the at least three RF receiver antennae initially calibrates a relative position of each RF receiver antenna with respect to the other RF receiver antennae based on the plurality of known locations and on information acquired in response to the RF signals received at the at least three RF receiver antennae.

公开(公告)号：US20190141554A1

公开(公告)日：2019-05-09

申请号：US15770000

申请日：2016-11-07

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Iana SIOMINA ,  Muhammad KAZMI

IPC分类号： H04W24/10 ,  H04W64/00 ,  H04L5/00 ,  H04B17/309

CPC分类号： H04W24/10 ,  G01S5/0221 ,  G01S5/10 ,  H04B17/309 ,  H04L5/0048 ,  H04W64/00 ,  H04W64/003

摘要： A first, second and third node as well as methods performed thereby are provided for providing a measurement result to the second node by the wireless device. The method performed by the wireless device comprises obtaining an adaptive resolution factor; and providing a combined measurement report based on the obtained adaptive resolution factor and a measurement result, wherein a combined measurement report comprises at least two reported levels, which jointly represents the measurement result, to the second node.

公开(公告)号：US20190037350A1

公开(公告)日：2019-01-31

申请号：US16137417

申请日：2018-09-20

申请人： PoLTE Corporation

发明人： Truman PREVATT

IPC分类号： H04W4/02 ,  H04L5/00 ,  G01S3/74 ,  H01Q1/24 ,  H01Q21/28 ,  G01S5/02 ,  G01S13/87 ,  G01S13/76 ,  G01S13/24 ,  G01S13/22 ,  G01S5/14 ,  G01S13/46

CPC分类号： H04W4/023 ,  G01S3/74 ,  G01S5/0205 ,  G01S5/0215 ,  G01S5/0252 ,  G01S5/0257 ,  G01S5/0263 ,  G01S5/0273 ,  G01S5/10 ,  G01S5/14 ,  G01S13/222 ,  G01S13/24 ,  G01S13/767 ,  G01S13/878 ,  G01S2013/466 ,  G01S2013/468 ,  H01Q1/241 ,  H01Q1/246 ,  H01Q21/28 ,  H04L5/0048 ,  H04L5/005

摘要： Systems and methods for determining user equipment (UE) locations within a wireless network using reference signals of the wireless network are described. The disclosed systems and methods utilize a plurality of in-phase and quadrature (I/Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. Based on received reference signal parameters the reference signal within the signals from each receive channel among the receive channels is identified. Based on the identified reference signal from each receive channel, an angle of arrival between a baseline of the two or more antennas and incident energy from the UE to the two or more antennas is determined. That angle of arrival is then used to calculate the location of the UE. The angle of arrival may be a horizontal angle of arrival and/or a vertical angle of arrival

公开(公告)号：US20180348332A1

公开(公告)日：2018-12-06

申请号：US15778264

申请日：2016-12-19

申请人： Swiss Timing Ltd ,  Friedrich-Alexander-Universitaet Erlangen- Nuernberg

发明人： Thomas KAUTZ ,  Sebastian SCHOLZ ,  Bjoern ESKOFIER

IPC分类号： G01S5/02 ,  G01S1/02 ,  G01S5/10 ,  G06F17/18

CPC分类号： G01S5/0242 ,  G01S5/021 ,  G01S5/10

摘要： A method for calibrating a time difference of arrival-based local positioning system for k−D localization, k=2 or 3, includes collecting N sets of time difference of arrival measurements related to a mobile node, N≥2, each nth set of measurements being performed by Bn beacon nodes among B beacon nodes of the positioning system while the mobile node is located is a nth position within a region covered by the positioning system, Bn≥k+2, and determining optimal beacon positions that minimize an objective function depending on N residual error vectors, the calculation of each nth position of the mobile node using beacon positions and the nth set of measurements, the calculation allowing the calculation of the nth residual error vector.

公开(公告)号：US20180279250A1

公开(公告)日：2018-09-27

申请号：US15470320

申请日：2017-03-27

申请人： QUALCOMM Incorporated

发明人： Arun Kumar Sharma Tandra ,  Ashwin Kumar Donthula

IPC分类号： H04W64/00

CPC分类号： H04W64/00 ,  G01S1/045 ,  G01S1/20 ,  G01S5/0221 ,  G01S5/0236 ,  G01S5/10 ,  H04W64/006 ,  H04W88/02

摘要： Techniques are provided that provide for or otherwise support positioning and related services for mobile devices via wireless signals. In an example, a mobile device may receive from a location server one or more messages comprising positioning assistance data indicating at least an operating frequency band of a terrestrial positioning signal (TPS). Responsive to detecting an incompatibility of an operating frequency band of the TPS with an operating frequency band of a receiver of the mobile device, the mobile device may initiate an alternative signal acquisition process.

公开(公告)号：US20180270784A1

公开(公告)日：2018-09-20

申请号：US15744548

申请日：2016-08-09

申请人： LG ELECTRONICS INC.

发明人： Hyunho LEE ,  Hanjun PARK ,  Kijun KIM ,  Jonghyun PARK

IPC分类号： H04W64/00 ,  H04L5/00 ,  H04W72/04 ,  H04W24/10 ,  H04W8/26

CPC分类号： H04W64/003 ,  G01S1/20 ,  G01S5/0036 ,  G01S5/0236 ,  G01S5/10 ,  H04J11/00 ,  H04L5/0048 ,  H04L5/0055 ,  H04W8/26 ,  H04W24/10 ,  H04W64/00 ,  H04W72/0406

摘要： A method for measuring a reference signal for location determination in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal. The method comprises the steps of: receiving assistant data related to neighbor cells and a reference cell for location determination; by means of the assistant data, receiving a positioning reference signal (PRS) of a cell-specific reference signal (CRS) of the reference cell or the neighbor cells and calculating a reference signal time difference (RSTD) measurement value; and reporting the measurement value to a location server, wherein the assistant data can comprise information about the number of CRS antenna ports of the reference cell and neighbor cells, CRS cyclic prefix (CP) length information, or configuration information about multicast broadcast single frequency network (MBSFN) subframes.

公开(公告)号：US20180270783A1

公开(公告)日：2018-09-20

申请号：US15461418

申请日：2017-03-16

申请人： QUALCOMM Incorporated

发明人： Sai Pradeep Venkatraman ,  Ju-Yong Do ,  Gengsheng Zhang

IPC分类号： H04W64/00 ,  G01S5/02

CPC分类号： H04W64/003 ,  G01S5/0236 ,  G01S5/0247 ,  G01S5/0252 ,  G01S5/0263 ,  G01S5/0284 ,  G01S5/10 ,  G01S5/12 ,  G01S5/14

摘要： Disclosed embodiments facilitate combining a plurality of wireless signal measurement sets with displacement measurements within some time interval of a position request to determine a User Equipment (UE) position. A first set of wireless signal measurements may be obtained from a first set of base stations at a first time at a first location. Subsequently, a second set of wireless signal measurements from a second set of base stations may be obtained at a second time at a second location distinct from the first location. A displacement measurement (e.g .a displacement vector) between the first location and the second location may be obtained. The position of the UE at the second location may then be determined based on the first and second sets of wireless signal measurements and the displacement measurement. In some embodiments, the first and second sets of wireless signal measurements may each be deficient measurement sets.

公开(公告)号：US10064156B2

公开(公告)日：2018-08-28

申请号：US15414008

申请日：2017-01-24

申请人： InterDigital Patent Holdings, Inc.

发明人： Janet A. Stern-Berkowitz ,  Marian Rudolph ,  Charles A. Dennean

IPC分类号： H04W64/00 ,  H04W72/04 ,  H04L5/00 ,  G01S5/02

CPC分类号： H04W64/003 ,  G01S5/0205 ,  G01S5/0252 ,  G01S5/10 ,  H04L5/0048 ,  H04W24/10 ,  H04W64/00 ,  H04W72/0446

摘要： A method and apparatus for supporting positioning measurements. The methods include designating a reference cell, choosing a positioning signal, and, for inter-frequency measurements, determining which inter-frequency cell to measure and how to make such an inter-frequency positioning measurement.

公开(公告)号：US20180242273A1

公开(公告)日：2018-08-23

申请号：US15897938

申请日：2018-02-15

申请人： Panasonic Intellectual Property Corporation of America

发明人： HIROSHI TAKAHASHI ,  NAGANORI SHIRAKATA ,  TOMOYA URUSHIHARA ,  JUNICHI MORITA

IPC分类号： H04W64/00 ,  H04W4/02 ,  H04B17/27 ,  H04W48/20 ,  G01S5/10

CPC分类号： H04W64/003 ,  G01S5/10 ,  H04B17/27 ,  H04W4/027 ,  H04W48/20

摘要： A base-station control apparatus includes: a sub-anchor candidate selector that selects sub-anchor candidates from base-station apparatuses different from a first base-station apparatus connected to a wireless terminal; an arrival-direction estimator that estimates arrival direction vectors with respect to the first base-station apparatus and the candidates, based on reception qualities of signals that the first base-station apparatus and the candidates receives from the wireless terminal; a sub-anchor selector that selects a sub-anchor from the candidates, based on angles made by the estimated arrival direction vectors and line segments each having end points at positions of the first base-station apparatus and the corresponding candidate; and a position estimator that estimates a position of the wireless terminal, based on the arrival direction vectors with respect to the first base-station apparatus and the sub-anchor.

公开(公告)号：US20180224522A1

公开(公告)日：2018-08-09

申请号：US15947243

申请日：2018-04-06

申请人： Empire Technology Development LLC

发明人： Jin Sam Kwak ,  Hyun Oh Oh ,  Ju Hyung Son

IPC分类号： G01S5/10 ,  G01S5/02 ,  G01S1/08 ,  H04W64/00

CPC分类号： G01S5/10 ,  G01S1/08 ,  G01S5/02 ,  G01S5/0215 ,  H04W64/00

摘要： Technologies are generally described for identifying whether a propagation path between a mobile device and an access point is line-of-sight. In some examples, a method performed under control of a mobile device may include receiving, from an access point, a first signal transmitted at a first frequency band; receiving, from the access point, a second signal transmitted at a second frequency band; measuring a difference value between propagation properties of the first signal and the second signal; and identifying whether a propagation path between the mobile device and the access point is line-of-sight or non-line-of-sight based at least in part on the difference value.