公开(公告)号：US12041577B2

公开(公告)日：2024-07-16

申请号：US17945063

申请日：2022-09-14

Applicant: Marvell Asia Pte Ltd

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Christian R. Berger ,  Niranjan Grandhe ,  Sudhir Srinivasa ,  Hui-Ling Lou

IPC: H04W64/00 ,  G01S5/00 ,  G01S5/02 ,  H04B7/0452 ,  H04B7/06 ,  H04L25/02 ,  H04W4/02 ,  H04W84/12

CPC classification number: H04W64/003 ,  G01S5/0036 ,  G01S5/0063 ,  G01S5/0236 ,  G01S5/0257 ,  H04B7/0452 ,  H04B7/0636 ,  H04L25/0202 ,  H04W84/12

Abstract: A first client station receives from an access point an indication of whether angular information is to be included in feedback information in a range measurement session. The first client station transmits a null data packet (NDP) as part of an uplink multi-user (MU) PHY transmission that also includes simultaneous transmissions by one or more second client stations of one or more other respective NDPs to the access point as part of the range measurement session. The first client station receives a downlink physical layer (PHY) data unit from the access point that includes respective downlink feedback frames for the first client station and the one or more second client stations. When angular information is to be included in the feedback, a downlink feedback frame for the first client station includes angular information.

公开(公告)号：US20240019529A1

公开(公告)日：2024-01-18

申请号：US17866601

申请日：2022-07-18

Applicant: United States of America as represented by the Secretary of the Navy

Inventor： Gregory Knowles Fleizach ,  Mark William Owen ,  Christopher Craig Pelham ,  Michael Aaron Slutsky

IPC: G01S5/02 ,  G01S7/285

CPC classification number: G01S5/02524 ,  G01S5/0257 ,  G01S7/285

Abstract: An RF pulse correlator comprising a track database, an antenna, a receiver, and a processor. The track database is configured to store established tracks of RF emissions. The antenna and receiver are configured to receive RF pulses. The tracker is configured to generate improved geolocation data for every received RF pulse based on kinematics of the received RF pulses. The processor is communicatively coupled to the database, the receiver, and the tracker. The processor is configured to associate each received RF pulse with an existing track in the track database or to create a new track.

公开(公告)号：US11689883B2

公开(公告)日：2023-06-27

申请号：US16990489

申请日：2020-08-11

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Inventor： Mohammad Alawieh ,  Bastian Perner ,  Niels Hadaschik ,  Norbert Franke

IPC: H04W4/02 ,  G01S5/00 ,  G01S5/02 ,  G01S5/14 ,  H04W72/04

CPC classification number: H04W4/023 ,  G01S5/0072 ,  G01S5/0257 ,  G01S5/0268 ,  G01S5/145 ,  H04W72/04

Abstract: A transceiver for a wireless communication system is configured to: communicate with at least one other transceiver of the system using a sidelink resource pool of the system; transmit signals on resources of the pool that are allocated to the transceiver on a period basis with equal length periods tperiodA; transmit a first signal on a first resource of the resources allocated to the transceiver, and receive a second signal from another transceiver of the system on a second resource, the second signal being transmitted by the other transceiver responsive to a reception of the first signal, the second signal being transmitted by the other transceiver on the second resource using the period tperiodA based on which the resources are allocated to the transceiver; determine a distance to the other transceiver based on a time troundA between the transmission of the first signal and the reception of the second signal from the other transceiver, and based on the period tperiodA based on which the resources are allocated to the transceiver.

公开(公告)号：US20190187238A1

公开(公告)日：2019-06-20

申请号：US16282035

申请日：2019-02-21

Applicant: SYMBOL TECHNOLOGIES, LLC

Inventor： David Bellows ,  Rehan K. Jaffri ,  Sean D. Marvel

IPC: G01S5/02 ,  H04R1/30 ,  G01S5/18 ,  H01Q5/22 ,  H01Q1/22 ,  G06K7/10

CPC classification number: G01S5/0257 ,  G01S5/18 ,  G06K7/10366 ,  G06K7/10405 ,  H01Q1/007 ,  H01Q1/2216 ,  H01Q5/22 ,  H01Q7/00 ,  H01Q21/205 ,  H04R1/30

Abstract: A method and apparatus for a co-located Radio Frequency Identification (RFID) device and ultrasonic device includes an RFID reader loop antenna element oriented parallel to a reflector panel. An ultrasonic emitter is disposed through an aperture in the reflector panel with a horn that extends through the loop element. The horn can serve as a mounting structure for the antenna element. A diameter of the aperture is less than one-quarter wavelength of an operating frequency of the RFID reader loop antenna element. The aperture is located in the reflector panel near a minimum E-field area of the RFID reader loop antenna element.

公开(公告)号：US20180336789A1

公开(公告)日：2018-11-22

申请号：US16049772

申请日：2018-07-30

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Edward TEAGUE

IPC: G08G5/00 ,  B64C39/02 ,  G05D1/00

CPC classification number: G08G5/0013 ,  B64C39/02 ,  G01S5/0257 ,  G01S5/10 ,  G01S5/14 ,  G01S11/02 ,  G01S19/48 ,  G08G5/0021 ,  G08G5/0026 ,  G08G5/0069 ,  G08G5/0082 ,  H04B7/18504 ,  H04W8/24

Abstract: The disclosure relates to drone user equipment (UE) indications that may be conveyed to a wireless network. In particular, a UE that has flight capabilities (i.e., capabilities to operate as an unmanned aircraft system) and optional further capabilities to report a current height level may indicate such capabilities to the wireless network. As such, the wireless network may differentiate the drone UE from other UEs that only operate on the ground. Furthermore, the optional current height level may enable the wireless network to differentiate among drone UEs operating at different heights and/or from other UEs that are operating on the ground. The wireless network may further use the information indicating the flight capabilities either alone or in combination with the optional height information to configure power control parameters, manage interference, provide mobility management functions, generate neighbor lists, control beamforming, or implement a radio resource configuration or management procedure.

公开(公告)号：US10057723B2

公开(公告)日：2018-08-21

申请号：US15451617

申请日：2017-03-07

Applicant: CloudLeaf, Inc.

Inventor： Raghavendra Kulkarni ,  Sharath Narahari ,  Ravindar Roopreddy

IPC: H04W4/02 ,  H04W4/80 ,  G01S5/02 ,  H04L12/26 ,  H01Q1/24 ,  H04W4/00

CPC classification number: H04W4/025 ,  G01S5/0252 ,  G01S5/0257 ,  G01S19/42 ,  G06Q10/087 ,  G08B13/2462 ,  H01Q1/24 ,  H04L43/106 ,  H04W4/021 ,  H04W4/80

Abstract: A system for managing data related to at least one leaf node device includes a location processing engine located on a server that is remote from the leaf node device, at least one point of interest (POI) device for collecting data via Bluetooth Low Energy (BLE) communication signals from the leaf node device on each of a plurality of channels and transmitting the collected data which includes phase angle information, a reader node device for receiving and transmitting the collected data to the location processing engine and a database of the known locations of a plurality of POI devices. The reader device or the location processing engine averages the collected data across the plurality of channels, and the known locations are used along with the averaged data as a basis for determining the location of the leaf node device.

公开(公告)号：US20180234937A1

公开(公告)日：2018-08-16

申请号：US15750015

申请日：2016-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soonyoung YOON ,  Chang-Yeong OH ,  Iljin YOUN ,  Suwon LEE

IPC: H04W64/00 ,  G01S11/06 ,  G01S5/10 ,  H04B17/318

CPC classification number: H04W64/00 ,  G01S5/0252 ,  G01S5/0257 ,  G01S5/10 ,  G01S11/06 ,  H04B17/318

Abstract: The present invention is for estimating a location of a terminal in a wireless communication system, and a method of estimating the location includes determining candidate regions based on a propagation time of a signal between the terminal and a radio unit, and determining at least one region among the candidate regions as the location of the terminal according to a signal strength pattern measured by the terminal for a serving cell and at least one neighbor cell.

公开(公告)号：US20180180702A1

公开(公告)日：2018-06-28

申请号：US15900654

申请日：2018-02-20

Applicant: PoLTE Corporation

Inventor： Felix MARKHOVSKY ,  Truman PREVATT ,  Russ MARKHOVSKY

IPC: G01S5/02 ,  H04W56/00 ,  H04W4/02

CPC classification number: G01S5/0215 ,  G01S1/042 ,  G01S1/20 ,  G01S3/74 ,  G01S5/0205 ,  G01S5/021 ,  G01S5/0226 ,  G01S5/0252 ,  G01S5/0257 ,  G01S13/74 ,  H04W4/023 ,  H04W56/001

Abstract: Systems and methods for determining a location of one or more user equipment (UE) in a wireless system can comprise receiving reference signals via a location management unit having two or more co-located channels, wherein the two or more co-located channels are tightly synchronized with each other and utilizing the received reference signals to calculate a location of at least one UE among the one or more UE. Embodiments include multichannel synchronization with a standard deviation of less than or equal 10 ns. Embodiments can include two LMUs, with each LMU having internal synchronization, or one LMU with tightly synchronized signals.

公开(公告)号：US20180173244A1

公开(公告)日：2018-06-21

申请号：US15838778

申请日：2017-12-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Suk June YOON ,  No San KWAK ,  Kyung Shik ROH ,  Soon Yong PARK ,  Sung Hwan AHN

IPC: G05D1/02 ,  G06N3/04 ,  A47L11/40

CPC classification number: G05D1/0274 ,  A47L11/4011 ,  A47L2201/04 ,  G01C21/00 ,  G01C21/005 ,  G01C21/206 ,  G01S5/0257 ,  G01S5/16 ,  G05D1/0221 ,  G05D1/0246 ,  G05D1/0251 ,  G05D1/027 ,  G05D1/0285 ,  G05D2201/0203 ,  G06N3/04 ,  H04W4/33 ,  H04W4/70

Abstract: Disclosed herein are a movable object and a movable object control method. The movable object control method may include acquiring an image of a movable object's surroundings, acquiring a signal having strength changing depending on a location of the movable object, generating a map on the basis of the signal and the image of the surroundings of the movable object, and applying the map to an algorithm to acquire a learned algorithm.

公开(公告)号：US20180146327A1

公开(公告)日：2018-05-24

申请号：US15817300

申请日：2017-11-20

Applicant: Golba LLC

Inventor： Mehran Moshfeghi

IPC: H04W4/02 ,  G01S19/48 ,  H04B5/00 ,  G06K19/07 ,  G06Q20/40 ,  G01S5/02 ,  H04W4/021 ,  G06Q20/32 ,  G06Q20/20 ,  H04W64/00 ,  G01S5/00

CPC classification number: H04W4/027 ,  G01S5/0009 ,  G01S5/021 ,  G01S5/0236 ,  G01S5/0257 ,  G01S19/48 ,  G06K19/0712 ,  G06Q20/202 ,  G06Q20/206 ,  G06Q20/3224 ,  G06Q20/409 ,  H04B5/0043 ,  H04W4/021 ,  H04W4/029 ,  H04W4/80 ,  H04W64/00 ,  Y02B70/30 ,  Y02D70/00

Abstract: A method and system is described where a plurality of position reference devices use short-range wireless communication protocols to transmit positioning assistance data to nearby mobile devices, and the mobile devices use the assistance data to re-calibrate their positioning systems. In some embodiments, mobile device includes an accelerometer and the accelerometer measurements are used to calculate an updated velocity of the mobile device and an updated position of the mobile device based on the accelerometer measurements and previous velocity and position of the mobile device. The short-range communication methods include NFC, RFID, Bluetooth®, short-range 802.11, Wi-Fi Direct, and high frequency focused beams such as 60 GHz. The position reference devices are passive or active NFC tags, passive or active RFID tags, other devices that include such tags as their components, Bluetooth®-enabled devices, 60 GHz-enabled devices, and 802.11 access points that can lower their transmit power.