Поиск патентов

05-07-2012 дата публикации

Location measuring method and apparatus using access point and lamp

Номер: US20120172051A1

Автор: Seung-Hyuk JEONG

Принадлежит: KT Corp

Measuring a location of a communication terminal using a wireless local area access point based on location coordinates of the access points and location information of a nearby lamp.

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Номер записи: 1

09-08-2012 дата публикации

Macro-Network Location Determination, Local-Oscillator Stabilization, and Frame-Start Synchronization Based on Nearby FM Radio Signals

Номер: US20120201195A1

Автор: Durga Satapathy, Walter Rausch

Принадлежит: CLEAR WIRELESS LLC

Exemplary methods and systems may generally be implemented to allow a macro-network base station without access to a GPS reference signal to provide some or all of the functionality for which existing macro-network base stations typically rely on GPS. In a first aspect, an exemplary macro-network base station may determine its location using a location-determination technique that is based upon the angles of arrival of FM radio signals from nearby FM stations. In a second aspect, an exemplary macro-network base station may stabilize its local oscillator by phase-locking its local oscillator to an FM radio signal, and periodically adjusting its local oscillator to account for phase drift of the FM radio signal. And in a third aspect, an exemplary macro-network base station may synchronize its frame-start timing with a nearby base station using a frame-start timing signal that the base station has synchronized to frame transmissions from the nearby base station during a setup routine.

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Номер записи: 2

13-09-2012 дата публикации

System and Method of Passive and Active Scanning of WLAN-Enabled Access Points to Estimate Position of a WLAN Positioning Device

Номер: US20120230313A1

Автор: Farshid Alizadeh-Shabdiz

Принадлежит: Skyhook Wireless Inc

Systems and methods of passive and active scanning of WLAN-enabled access points to estimate position of a WLAN positioning device. A device estimates the position of itself. The device includes a WLAN radio module for receiving WLAN signals, extraction logic for extracting information from said received WLAN signals to identify the WLAN APs, and logic to cooperate with a WLAN-based positioning system. The WLAN radio module includes a phase for active scanning of WLAN APs in range of said device and a phase of passive scanning of WLAN APs in range of said device, and the passive scanning phase scans only a pre-determined and selected subset of WLAN channels. Under certain embodiments, the WLAN radio module includes a passive scanning phase that simultaneously scans multiple WLAN channels.

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Номер записи: 3

04-10-2012 дата публикации

Methods and apparatus for triggering cooperative positioning or learning in a wireless network

Номер: US20120249372A1

Автор: Aleksandar Jovicic, Cyril Measson, Junyi Li, Thomas Richardson

Принадлежит: Qualcomm Inc

One or more bits are used in peer discovery signals to signal a device's ability and/or willingness to participate in a cooperative manner with regard to one or more mobile device location determination related operations. In some embodiments, the one or more bits are located at predetermined locations within a header portion of a peer discovery signal. Different bits, in some embodiments, are associated with different specific cooperative location determination related operations. The peer discovery signal is transmitted, e.g., broadcast, periodically or on some predetermined basis by a mobile wireless communications device. In this manner, a device listening to the peer discovery signals can determine other devices' willingness to perform particular location discovery related operations with very little signaling overhead.

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Номер записи: 4

22-11-2012 дата публикации

Wireless communication device, information processing device, communication system, and location determination method

Номер: US20120295641A1

Автор: Shinichiro Tsuda

Принадлежит: Sony Corp

A detection unit detects an error of second location information by designating first location information periodically or aperiodically acquired on the basis of information from an artificial satellite, designating the second location information periodically or aperiodically acquired on the basis of information from a base station serving as a connection target, and comparing the second location information to the first or second location information acquired at a timing before an acquisition time of the second location information on a time axis. A determination unit determines a current location based on the first or second location information, and determines the current location based on other location information specified by a base station related to the second location information when the first location information has not been acquired at a timing of the determination and the error of the second location information acquired at the timing of the determination has been detected.

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Номер записи: 5

06-06-2013 дата публикации

Methods and apparatuses for use in selecting a transmitting device for use in a positioning function

Номер: US20130143590A1

Автор: Behrooz Khorashadi, Saumitra Mohan Das, Vinay Sridhara

Принадлежит: Qualcomm Inc

Methods and apparatuses are provided which may be implemented in various devices having one or more computing platforms to obtain signaling characteristics for one or more transmitting devices. The signaling characteristics may, for example, be based, at least in part, on one or more signals received by a receiving device from the transmitting device(s), and may comprise at least a received signal strength measurement and a propagation time measurement. Such methods and apparatuses may further be implemented to determine whether a mobile station is to use or not use positioning data for one or more transmitting device(s) in a positioning function based, at least in part, on the received signal strength measurement and the propagation time measurement.

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Номер записи: 6

25-07-2013 дата публикации

Wireless communication device and wireless communication method

Номер: US20130189929A1

Автор: Kazuaki Takahashi, Masayuki Orihashi, Suguru Fujita

Принадлежит: Panasonic Corp

A wireless communication device transmits and receives a signal by a wireless communication using a millimeter wave frequency band. The wireless communication device includes an antenna section having directivities in a plurality of different directions, an antenna control section adapted to form a directivity in a prescribed direction among the plurality of directivities of the antenna section, a direction and position estimation section adapted to estimate direction and position information of a wireless communication device to be communicated with, which is a target for the wireless communication, in accordance with a receiving signal received by the antenna section having the directivity formed, and a display section adapted to display the estimated direction and position information of the wireless communication device to be communicated with.

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Номер записи: 7

19-09-2013 дата публикации

System for orienting and positioning an electromagnetic receiver

Номер: US20130241773A1

Автор: Robert Laine

Принадлежит: Astrium SAS

According to the invention, a transmitting beacon ( 4 ) comprises at least two transmitting current loops ( 6.1, 6.2, 6.3 ) which are mutually orthogonal and capable of transmitting electromagnetic waves ( 5.1, 5.2, 5.3 ), as well as means ( 7 ) for supplying power to said transmitting current loops ( 6.1, 6.3 ) in series.

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Номер записи: 8

19-09-2013 дата публикации

Technique for using cached information with a wlan positioning system to obtain an estimate of a position of a mobile device

Номер: US20130241776A1

Автор: Farshid Alizadeh-Shabdiz

Принадлежит: Skyhook Wireless Inc

In one embodiment, techniques are employed to estimate a position of a wireless local area network (WLAN) enabled mobile device. The mobile device receives one or more wireless local area network (WLAN) packets transmitted within a range of the mobile device. The mobile device extracts information from the one or more WLAN packets to identify one or more WLAN access points (APs), and caches information indicating an identity of the one or more WLAN APs and a time of detection of the one or more WLAN APs. Subsequent to the caching, a request may be received for a position estimate of the mobile device. In response to the subsequently-received request for the position estimate, the cached information is provided to a WLAN positioning system (WPS) to obtain an estimate of a position of the mobile device.

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Номер записи: 9

24-10-2013 дата публикации

Systems and methods for local-area-network-assisted location determination

Номер: US20130279488A1

Автор: Rajendra Singh

Принадлежит: TELCOM VENTURES LLC

Wi-Fi-based location determination methods may include receiving location information and/or identifier information regarding a Wi-Fi hot spot, at a database. The methods may include transmitting the location information and/or identifier information regarding the Wi-Fi hot spot, from the database to a positioning receiver. Related systems are also described.

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Номер записи: 10

31-10-2013 дата публикации

Localization based on individual location patterns

Номер: US20130288703A1

Автор: DU Li, Guang Yang, Yifei Jiang, Zhigang Liu

Принадлежит: Nokia Oyj

A system that uses historical position information accumulated in an apparatus to determine whether locations and/or routes may be classified as significant. A classification of a location or route as significant may be utilized in configuring localization in the apparatus. Localization configuration may include, for example, setting a type technology utilized in determining apparatus position.

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Номер записи: 11

07-11-2013 дата публикации

System for determining and/or controlling the location of objects

Номер: US20130293410A1

Автор: Christian Hieronimi

Принадлежит: Individual

A system for determining and/or controlling the location of objects includes a transceiver fixedly arranged on or in the object, and a receiving antenna for receiving signals transmitted by the transceiver. A transmitting antenna transmits signals to the transceiver causing the transceiver to transmit signals. An antenna signal processing device evaluates signals received from the receiving antenna to determine a spatial position and/or location and a predefined identification of the transceiver relative to the receiving antenna, the object and a predefined reference point. A data processing device receives information from the antenna signal processing device about the position, location, and identification of the transceiver. In one aspect, the system is for determining the position and/or location of at least one transceiver relative to an object. In another aspect, the system is for determining and controlling the position and/or location of the object.

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Номер записи: 12

26-12-2013 дата публикации

Correcting device error radius estimates in positioning systems

Номер: US20130342401A1

Автор: Julia Maureen Letchner, Jyh-Han Lin, Stephen P. Diacetis, YONG Song

Принадлежит: Microsoft Corp

Embodiments adjust device error radiuses associated with inferred device positions produced by positioning systems. Inferred beacon positions and associated beacon radiuses are accessed for beacons in a beacon fingerprint from an observing computing device. The beacon radiuses are associated with a pre-defined confidence level (e.g., an in-circle percentage). A Kalman filter is applied to at least one of the beacons using the inferred beacon positions and the beacon radiuses associated therewith to infer a device position for the computing device and to compute a device error radius for the inferred device position. The computed device error radius is adjusted as a function of the quantity of beacons input to the Kalman filter to achieve the pre-defined confidence level.

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Номер записи: 13

26-12-2013 дата публикации

Access point location identification methods and apparatus based on absolute and relative harvesting

Номер: US20130344886A1

Автор: Ben Tarlow, Murray Robert Jarvis, Nicolas Guy Albert Graube

Принадлежит: Cambridge Silicon Radio Ltd

A system and method which identifies locations associated with radio-frequency (RF) signal sources in an area, includes receiving multiple measurement sets from a plurality of collector devices. The collector devices obtain contemporaneous information on characteristics of the signal sources and absolute and/or relative location information of the collectors. These measurement sets are processed to discover positioning data for the RF signal sources that may be used to determine locations of devices in the area that are configured to receive or monitor the RF signals.

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Номер записи: 14

30-01-2014 дата публикации

LOCATION SYSTEM FOR A FLYING CRAFT

Номер: US20140028486A1

Автор: Artis Jean-Paul, Cornic Pascal, Garrec Patrick

Принадлежит: THALES

A location and guidance system including a flying craft and a reception device. The flying craft includes a plurality of antennas distributed around its fuselage and emitting rearwards with rectilinear polarization, the emitted signals being specific to each antenna, the positions and the dimensions of the antennas being configured such that the body of the flying craft avoids by masking for at least one antenna the reflections of the signal emitted by this antenna off the ground or off lateral obstacles whatever the position of the flying craft. The reception device is placed substantially on a trajectory axis of the flying craft and configured to be oriented to sight the rear thereof and includes at least two single-pulse antennas operating in orthogonal planes determines a position of the flying craft by analysing the emitted signals received by the antennas of the reception device. 1. A location and guidance system comprising:a flying craft comprising a plurality of antennas distributed around a fuselage of the flying craft and configured to emit signals rearwards from the flying craft with rectilinear polarization, with the emitted signals being specific to each antenna, wherein the positions and the dimensions of the antennas being configured such that the body of the flying craft avoids by masking for at least a first one of the antennas reflections of the signal emitted by the first antenna off the ground or off lateral obstacles whatever the position of the flying craft; and a plurality of single-pulse antennas operating in orthogonal planes, and', 'means for determining a position of the flying craft by analysing the emitted signals received by the antennas of the reception device., 'a reception device placed substantially on a trajectory axis of the flying craft and configured to be oriented to sight a rear of the flying craft, the reception device comprising'}2. The system according to claim 1 , wherein the flying craft further comprises a modulation ...

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Номер записи: 15

27-03-2014 дата публикации

DEVICE AND METHOD FOR PROVIDING LOCATION INFORMATION BY SMART NAVIGATION

Номер: US20140085137A1

Автор: SIN Cheon Sig

Принадлежит: Electronics and Telecommunications Research Institute

A device and method for providing location information by smart navigation are provided. The device for providing location information may include a generation unit to generate visual synchronization information in response to a location information request from a terminal, a transmission unit to transmit the visual synchronization information and to control the visual synchronization information to be transferred to the terminal, and a computation unit to extract location information of a transmitting station from the visual synchronization information received from the terminal and to compute a location of the terminal. 1. A device for providing location information by smart navigation , the device comprising:a generation unit to search for a transmitting station, and to generate visual synchronization information, in response to a location information request from a terminal, the transmitting station transmitting a radio wave to the terminal;a transmission unit to transmit the visual synchronization information to the found transmitting station, and to control the visual synchronization information to be transferred from the transmitting station to the terminal through the radio wave; anda computation unit to extract location information of the transmitting station from the visual synchronization information received from the terminal, and to compute a location of the terminal.2. The device of claim 1 , wherein the generation unit searches for a transmitting station that transmits a radio wave with a relatively high intensity claim 1 , from among transmitting stations that at least comprise a transmitting station that transmits a broadcast-related radio wave claim 1 , a transmitting station that transmits a radio-related radio wave claim 1 , and a transmitting station that transmits an Internet-related radio wave.3. The device of claim 1 , wherein claim 1 , when jamming is not detected in a global positioning system (GPS) signal received from the terminal claim 1 ...

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Номер записи: 16

05-01-2017 дата публикации

METHODS AND APPARATUS FOR TRIGGERING COOPERATIVE POSITIONING OR LEARNING IN A WIRELESS NETWORK

Номер: US20170003375A1

Автор: Jovicic Aleksandar, Li Junyi, Measson Cyril, Richardson Thomas

Принадлежит:

One or more bits are used in peer discovery signals to signal a device's ability and/or willingness to participate in a cooperative manner with regard to one or more mobile device location determination related operations. In some embodiments, the one or more bits are located at predetermined locations within a header portion of a peer discovery signal. Different bits, in some embodiments, are associated with different specific cooperative location determination related operations. The peer discovery signal is transmitted, e.g., broadcast, periodically or on some predetermined basis by a mobile wireless communications device. In this manner, a device listening to the peer discovery signals can determine other devices' willingness to perform particular location discovery related operations with very little signaling overhead. 1. A method of operating a first mobile communications device to communicate device information , the method comprising:transmitting a peer discovery signal including a predetermined bit designated for use in signaling a willingness to perform a first device location determination related operation, said predetermined bit being set to a first value when said first mobile communications device is willing to perform said first device location determination related operation and being set to a second value when said first mobile communications device is not willing to perform said first device location determination related operation; andmonitoring for a signal from a second mobile communications device corresponding to said first device location determination related operation.2. The method of claim 1 , wherein said first device location determination related operation is a map parameter determination operation.3. The method of claim 2 , when said monitoring for a signal from a second mobile communications device detects receipt of a signal from the second mobile communications device corresponding to said first device location determination ...

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Номер записи: 17

05-01-2017 дата публикации

Method of monitoring well-being of semi-independent persons and system thereof

Номер: US20170005958A1

Автор: Assaf Frenkel, Gdalia LENZ, Matania Zvi Kochavi, Yoav Ariav, Zachi EKHOUS

Принадлежит: AGT International GmbH

A client system for monitoring elders in a residential setting, the client system comprising communication apparatus operative for sending real time localization data and elder body motion data toward at least one server configured for performing at least one elder-supporting backend service responsive to at least one of THE real time localization data and elder body motion data; and at least one real-time location subsystem including: at least one wearable (“tag”) including at least one ultra-wide-band (UWB) communication transceiver and an accelerometer operative for sensing at least one body motion of an elder wearing the tag thereby to provide the elder body motion data; and at least one anchor device for deployment in an elder's domicile including an ultra-wide-band (UWB) communication transceiver operative for real time sub-meter localization of the tag, thereby to provide the real time localization data.

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Номер записи: 18

27-01-2022 дата публикации

Distributed location determination in wireless networks

Номер: US20220026585A1

Автор: Amer Aref Hassan, Mahendra D. Sekaran, Russell Andrew Penar

Принадлежит: Microsoft Technology Licensing LLC

In some embodiments, a location of a mobile terminal is determined by obtaining a location of a first access point (AP), receiving a visibility indication indicating that a second AP received a signal from the first AP or the first AP received a signal from the second AP, determining a location of the second AP based on the received visibility indication and the location of the first AP, determining a location of the mobile terminal in communication with the second AP based on the determined location of the second AP, and transmitting a message indicating the location of the mobile terminal on a digital communication network.

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Номер записи: 19

09-01-2020 дата публикации

METHOD AND SYSTEM FOR LOCATING RESOURCES AND COMMUNICATING WITHIN AN ENTERPRISE

Номер: US20200011673A1

Автор: Poel Robert, Sculley Darrin

Принадлежит:

A method and system of tracking and reporting locations of entity employees, the method for use with at least a first interface device including a display screen, the method comprising the steps of, providing a processor programmed to perform the steps of, storing schedules of entity employees where the schedules indicate scheduled locations of employees during time slots, receiving an indication from a first employee indicating at least a first future time slot, identifying locations of the entity employees during the future time slot, using the schedules of entity employees to generate a location representation indicating the locations of at least a subset of the entity employees during the at least a first future time slot and presenting the location representation via the first interface device. 1. A method comprising:receiving, by a server computing device comprising a processor, from a portable device that can identify its location, a request to identify availability status of a plurality of resources;receiving, by the server computing device, a device identifier and location data associated with a first set of resources of the plurality of resources from the portable device, wherein the portable device determines the location data based on detection of location signals transmitted from at least one identifying device spatially associated with at least one of the first set of resources, and wherein the portable device is within a location signal range of each of the identifying devices associated with the first set of resources;determining, by the server computing device, the current location of the portable device based at least on one of the location data of the first set of resources and the device identifier;querying, by the server computing device, a database to identify the availability status of the first set of resources of the plurality of resources responsive to the request and corresponding to the current location associated with the portable device ...

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Номер записи: 20

09-01-2020 дата публикации

APPARATUS AND METHOD FOR DEFINING A PARAMETRIC MODEL FOR MOBILE DEVICE POSITIONING

Номер: US20200011958A1

Автор: HASHISHO Basel

Принадлежит:

An apparatus and method define a parametric model that may be utilized for determining a position of a mobile device relative to a beacon that includes at least first and second directive antennas and at least a non-directive antenna. The apparatus includes a communication interface configured to receive signals from at least the first and second directive antennas and at least the non-directive antenna at each of a plurality of angular positions throughout a range of angles. The apparatus further includes processing circuitry configured to normalize the signal strengths of the signals received from the first and second directive antennas. The processing circuitry is also configured to determine the parametric model representative of relationships based upon the normalized signal strengths of the signals received from the first and second directive antennas to the angle of the mobile device to the beacon. 1. An apparatus for defining a parametric model of an angle of a mobile device to a beacon , the apparatus comprising:a communication interface configured to receive signals from at least first and second directive antennas of the beacon and at least the non-directive antenna of the beacon at each of a plurality of angular positions throughout a range of angles; andprocessing circuitry configured to normalize signal strength of the signals received from the first and second directive antennas based on signal strength of the signals received from the non-directive antenna to determine normalized signal strengths of the signals received from the first and second directive antennas,wherein the processing circuitry is also configured to define the parametric model representative of relationships based upon the normalized signal strengths of the signals received from the first and second directive antennas to the angle of the mobile device to the beacon.2. An apparatus according to wherein the first and second directive antennas and the non-directive antenna are ...

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Номер записи: 21

09-01-2020 дата публикации

THREE-DIMENSIONAL ASSET TRACKING USING RADIO FREQUENCY-ENABLED NODES

Номер: US20200011959A1

Автор: ABOU-RIZK Mitri J., George Sajin

Принадлежит:

Described examples include light fixtures and/or radio frequency (RF) nodes located in a service volume provided with a mobile asset detection system. The RF nodes receive beacon signals transmitted by mobile assets within the service volume. The mobile asset detection system includes a processor, a transceiver and multi-element antenna array. The multi-element antenna array includes multiple discrete antenna elements that, in some examples, are arranged so that at least one of the discrete antenna elements is non-coplanar with the other discrete antenna elements of the antenna array. Using signal attribute values determined from a signal received via each of the respective discrete antenna elements, a three dimensional estimate of the location of the mobile assets in a service volume may be determined. 1. A method , comprising: is coupled to a respective light fixture of multiple light fixtures distributed in a service volume, and', 'includes an antenna array having multiple discrete antenna elements;, 'receiving a radio frequency beacon signal emitted from a mobile asset by a mobile asset detection device, wherein the mobile asset detection devicebased on outputs of the mobile asset detection system generated in response to the received radio frequency beacon signal, determining a value of a signal attribute of the radio frequency beacon signal as received via each discrete antenna element of the antenna array coupled to the respective light fixture, wherein a signal attribute value is determined for each of the discrete antenna element;determining, by a processor, differences between the determined values of the signal attribute of the radio frequency beacon signal received via the discrete antenna elements; andprocessing the determined differences, to estimate a three-dimensional location of the mobile asset with respect to the mobile asset detection system for a time when the mobile asset transmitted the radio frequency beacon signal.2. The method of claim 1 , ...

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Номер записи: 22

09-01-2020 дата публикации

Position tracking system and method using radio signals and inertial sensing

Номер: US20200011961A1

Автор: Edward L. Hill, Mark Schneider

Принадлежит: Position Imaging Inc

An RF position tracking system for wirelessly tracking the three-dimensional position of a tracked object. The tracked object has at least one mobile antenna and at least one inertial sensor. The system uses a plurality of base antennas which communicate with the mobile antenna using radio signals. The tracked object also incorporates the inertial sensor to improve position stability by allowing the system to compare position data from radio signals to data provided by the inertial sensor.

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Номер записи: 23

12-01-2017 дата публикации

Intuitive way to point, access, and control appliances and other objects in building interiors

Номер: US20170013112A1

Автор: Anil Ranjan Roy SAMANTA SINGHAR, Raja Banerjea

Принадлежит: Qualcomm Technologies International Ltd

A user equipment (UE) device pointed at an appliance to be controlled, or at an object that is to be accessed or about which information needs to retrieved, determines its position and orientation within an environment with respect to a fixed frame of reference. The appliance to be controlled is identified based on a determined position and orientation of the UE device and a known position of the appliance. The UE device controls the identified appliance by establishing a wireless communication link between the identified appliance and UE device based on a wireless technology that is compliant with both the appliance and the UE device. The UE device may control another appliance via a central control computer server to which the other appliance is interfaced, when the other appliance is not configured for wireless communication.

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Номер записи: 24

09-01-2020 дата публикации

Location Determination of Fixed/Portable Devices

Номер: US20200015187A1

Автор: Amer A. Hassan

Принадлежит: Microsoft Technology Licensing LLC

Techniques for determining locations of one or more access points herein include receiving device location information and signal strength information from a plurality of mobile devices. The device location information indicates a location of a respective one of the plurality of mobile devices, and the signal strength information includes information indicative of a strength of one or more signals from the one or more access points measured by the respective one of the plurality of mobile devices at the location indicated in the device location information. These techniques also include associating the device location information and the signal strength information received from the plurality of mobile devices with a respective one of the one or more access points; and determining a location of the one or more access points of the network based at least on the device location information and signal strength information.

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Номер записи: 25

09-01-2020 дата публикации

Methods and apparatuses for positioning based on signal correlation function characteristics feedback

Номер: US20200015188A1

Автор: Ali ZAIDI, Fredrik Gunnarsson, Henrik Rydén, Meng Wang, Sara MODARRES RAZAVI

Принадлежит: Telefonaktiebolaget LM Ericsson AB

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.

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Номер записи: 26

09-01-2020 дата публикации

Location accuracy assessment and remediation for indoor positioning system deployments

Номер: US20200015189A1

Автор: Abhishek MUKHERJI, Rong PENG, Santosh Ghanshyam Pandey, Vinay S. Raghuram

Принадлежит: Cisco Technology Inc

In one embodiment, a device determines that location accuracy performance of an indoor positioning system deployment is below a predefined threshold. The device obtains characteristic data for the indoor positioning system deployment. The device identifies, by using the characteristic data as input to a machine learning model, one or more contributing factors from the characteristic data for the location accuracy performance of the indoor positioning system deployment being below the predefined threshold. The device initiates a remediation action based on the identified one or more contributing factors for the location accuracy performance of the indoor positioning system deployment being below the predefined threshold.

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Номер записи: 27

03-02-2022 дата публикации

TIME DIFFERENCE OF ARRIVAL ESTIMATOR BASED ON A JOINT-OPTIMIZATION FORMULATION

Номер: US20220034994A1

Автор: FARSHCHIAN Masoud

Принадлежит:

Techniques, systems, architectures, and methods for estimating the time difference of arrival (TDOA) based on a joint-optimization formulation, the method comprising providing at least two noisy signals, y1 and y2, where the signals are measured across different antenna elements and where one signal is a delayed amplitude, scaled version of the other signal; and estimating the TDOA using an optimization formulation. 2. The method of claim 1 , wherein the penalty function is a convex penalty function.3. The method of claim 1 , wherein the penalty function is a non-convex penalty function.4. The method of claim 1 , wherein a power of the noisy signals is normalized before solving for x and a.7. The method of claim 6 , wherein f(x;K) is further generalized by using weighting functions to weight a sum.8. The method of claim 7 , wherein the weighting functions are hamming type functions.9. The method of claim 1 , wherein the following cost function is used in the optimization formulation: φ(x;a)=Σ[ΣVg(x(i+k);a)]10. The method of claim 1 , further comprising defining a mixed norm in the following equation: φ(x)=Σ[ΣV|x(i+k)|].11. The method of claim 1 , further comprising penalizing φ(Dx) where Dis the lth order difference operator.12. The method of wherein the iterative process comprises:fixing τ;solving the optimization formulation for multiple values of τ; andchoosing a vector x such that a cost function of the optimization formulation is minimized.13. The method of wherein solving the optimization formulation is accomplished using a technique selected from the group consisting of: majorization claim 12 , proximal methods claim 12 , and non-linear convex optimization for each fixed τ.14. The method of further comprising estimating the TDOA of a pulse once x is estimated.15. The method of further comprising estimating the TDOA of a pulse once x is estimated.16. The method of wherein estimating x comprises setting w=017. The method of further comprising estimating x(n−τ) ...

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Номер записи: 28

03-02-2022 дата публикации

Sample measurement toa correction

Номер: US20220038920A1

Автор: Benny Vejlgaard, Diomidis Michalopoulos, Mikko SÄILY, Oana-Elena Barbu

Принадлежит: NOKIA TECHNOLOGIES OY

Inter-alia, a method is disclosed comprising: obtaining at least two sets of sample measurements, wherein a respective set of sample measurements thereof is indicative of one or more signals that are observable by an antenna, wherein a respective set of sample measurements of the at least two sets of sample measurements is measured with a respective antenna of at least two antennas, and wherein the two antennas have a distance from one another and are comprised by or connectable to an apparatus; determining time-of-arrival, TOA, difference information indicative of a TOA difference between the at least two sets of sample measurements, wherein the TOA difference information is determined based, at least in part, on at least two sets of sample measurements, the determining comprising checking whether the TOA difference reflects said distance between the at least two antennas. Corresponding apparatus, computer program and system are further disclosed.

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Номер записи: 29

22-01-2015 дата публикации

Method, Device and System for Determining Topology of a Wireless Communication Network

Номер: US20150024774A1

Автор: Ostergaard Paul Frederick Norwood, Wilson David Alexander

Принадлежит: Norwood Systems Pty Ltd.

A method for determining a topology of a wireless communication network (), the method comprising: receiving a plurality of signal strength data respectively measured at a plurality of fixed stations () in the network each with respect to its neighbouring fixed stations; receiving a sensor data measured at a mobile station operable to communicate with the network; and determining positions of the plurality of fixed stations based on the signal strength data measured at the plurality of fixed stations and the sensor data measured at the mobile station. 1. A method for determining a topology of a wireless communication network , the method comprising:receiving a plurality of signal strength data respectively measured at a plurality of fixed stations in the network each with respect to its neighbouring fixed stations;receiving sensor data measured at a mobile station operable to communicate with the network, wherein the sensor data comprises signal strength data measured at the mobile station and at least one of an acceleration data, an orientation data, a direction data, and a mobile station position data; anddetermining positions of the plurality of fixed stations based on the signal strength data measured at the plurality of fixed stations and the sensor data measured at the mobile station; andwherein determining the topology comprises estimating at least one of a distance and a direction, using the at least one of acceleration data, orientation data, direction data, and mobile station position data, between two or more locations of a mobile station at which signal strength data has been measured, to reference positions of the fixed stations with respect to an absolute reference frame.2. The method according to claim 1 , wherein the topology comprises at least one of a physical arrangement claim 1 , a two dimensional (2D) topology claim 1 , a three dimensional (3D) topology claim 1 , and a logical topology.3. The method according to claim 2 , wherein the physical ...

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Номер записи: 30

16-01-2020 дата публикации

SYSTEMS AND METHODS FOR LOCATING A USER EQUIPMENT USING GENERIC POSITION METHODS FOR A 5G NETWORK

Номер: US20200021949A1

Автор: Edge Stephen William, Fischer Sven, LOPES Luis Fernando Brisson

Принадлежит:

Techniques are disclosed in which generic position methods in a wireless network allow positioning of a target user equipment (UE) that is served by any one (or more) of a number of different Radio Access Technologies (RATs) and that allow measurements by the UE of access nodes belonging to different RATs and/or measurements of the UE by access nodes for different RATs. With a generic position method, a common set of procedures, messages, and parameters may be defined that are applicable to multiple RATs and that do not require a location server to know in advance the serving RAT for a target UE. 1. A method of locating a user equipment (UE) at an access node for a wireless network , the method comprising: the first set of location measurements comprises measurements of signals belonging to a plurality of Radio Access Technologies (RATs),', 'the plurality of RATs comprise a serving RAT serving the UE,', 'which RAT, of the plurality of RATs, comprises the serving RAT is unknown to the location server, and', 'the access node is an access node of the serving RAT;, 'receiving, from a location server in the wireless network, a first message comprising a request for a first set of location measurements for determining a location of the UE, wherein the second set of location measurements comprises a subset of the first set of location measurements, and', 'the second set of location measurements includes measurements of signals belonging to the serving RAT; and, 'obtaining a second set of location measurements for determining the location of the UE, whereinsending a second message to the location server, the second message comprising the second set of location measurements.2. The method of claim 1 , wherein the plurality of RATs comprises a Fifth Generation (5G) New Radio (NR) RAT claim 1 , a Long Term Evolution (LTE) RAT claim 1 , an IEEE 802.11 WiFi RAT claim 1 , a Bluetooth RAT claim 1 , or any combination thereof.3. The method of claim 2 , wherein the access node ...

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Номер записи: 31

24-01-2019 дата публикации

Position determination of a mobile station using modified wi-fi signals

Номер: US20190025401A1

Автор: Andrey Vladimirovich VEITSEL, Fedor Borisovich Serkin, Nikolay Afanasyevich VAZHENIN, Vladimir Viktorovich VEITSEL

Принадлежит: Topcon Positioning Systems Inc

Position determination for a mobile station is achieved through the modification of certain Wi-Fi access point and station signals, that are radiated by a certain master (i.e., guiding) base station, combined with slave (i.e., guided) stations having known coordinates, and processing the signals received from these base stations at the mobile station to determine the desired position.

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Номер записи: 32

28-01-2016 дата публикации

Radio Access Point Location Verification using GPS Location and Radio Environment Data

Номер: US20160029341A1

Автор: Anton Okmyanskiy, Archie Hensley, Edward Haynes, Jeffrey Antoline, Mickael Graham

Принадлежит: Cisco Technology Inc

Techniques are provided to perform location verification of a radio access point device such as femtocell. The radio access point device is configured to receive signals from global positioning system (GPS) satellite transmitters to produce GPS location data representing a GPS location of the radio access point device. The radio access point device is also configured to receive wireless signals at one or more specified channels and to generate radio environment data representing characteristics of received wireless signals. A comparison is made between the GPS location data and reference GPS location data for an expected location of the radio access point device. When the GPS location data substantially matches the reference GPS location data, operations of the radio access point device are enabled and the radio environment data is stored to be used as reference radio environment data for purposes of subsequent location verification of the radio access point device.

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Номер записи: 33

28-01-2021 дата публикации

LOCAL AREA NETWORK ASSISTED POSITIONING

Номер: US20210029666A1

Автор: Moeglein Mark Leo, Sheynblat Leonid

Принадлежит:

A method for assisting in locating a position of a mobile wireless device includes: obtaining location information of an approximate location of the mobile wireless device; generating an almanac of base stations based at least in part on proximity of locations of the base stations to the approximate location of the mobile wireless device, the almanac of base stations comprising at least one cooperative terrestrial base station that can communicate with the mobile wireless device in at least one mode and at least one uncooperative terrestrial base station capable of bi-directional communications and configured to prevent data and voice communications with the mobile wireless device, the at least one uncooperative terrestrial base station being configured to acknowledge a message received from the mobile wireless device; and providing the almanac of base stations to the mobile wireless device. 1. A method for assisting in locating a position of a mobile wireless device , the method comprising:obtaining location information of an approximate location of the mobile wireless device;generating an almanac of base stations based at least in part on proximity of locations of the base stations to the approximate location of the mobile wireless device, the almanac of base stations comprising at least one cooperative terrestrial base station that can communicate with the mobile wireless device in at least one mode and at least one uncooperative terrestrial base station capable of bi-directional communications and configured to prevent data and voice communications with the mobile wireless device, the at least one uncooperative terrestrial base station being configured to acknowledge a message received from the mobile wireless device; andproviding the almanac of base stations to the mobile wireless device.2. The method of claim 1 , wherein the location information comprises:coordinates of the approximate location of the mobile wireless device;coordinates of a location of a ...

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Номер записи: 34

04-02-2016 дата публикации

Synthetic aperture rfid handheld with tag location capability

Номер: US20160033634A1

Автор: Hunter Leland, KVS Rao, Pavel Nikitin, Rainer Brueckmann, Stephen Kelly

Принадлежит: INTERMEC IP CORP

A system for determining a bearing or location of a radio frequency identification (RFID) tag using a handheld RFID reader is described. In one embodiment, the reader is equipped with an accelerometer. A user moves the reader while the reader receives the tag's signal and determines the tag signal's phase at multiple locations. The locations of the reader antenna can be reconstructed using the accelerometer data. By using the phase determined at multiple locations in conjunction with the location of the reader antenna, the reader can determine the bearing of the tag. For an RFID reader not equipped with an accelerometer, the sign and ratio of the rate of change in the phase of a tag's signal to the distance traveled by the reader antenna can be used to determine the location of the tag relative to the reader.

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Номер записи: 35

02-02-2017 дата публикации

ACCESS POINT POSITION DETERMINATION BY MOBILE DEVICES CROWD SOURCING

Номер: US20170034657A1

Автор: Amizur Yuval, Banin Leor, Fridman Chagai, Schatzberg Uri

Принадлежит: Intel IP Corporation

Embodiments for performing access point position determination using crowd sourcing are generally described herein. In some embodiments, a range report request is received, by at least one mobile device, from a network entity for determining a position of a plurality of access points (APs). The at least one mobile device performs range measurements on each of the plurality of APs at different locations. A range report associated with the range measurements performed on each of the plurality of APs is sent to the network entity by the at least one mobile device. 130-. (canceled)31. A network entity for determining positions of access points based on crowd sourcing , comprising:a signaling device for receiving and transmitting signals; anda processor, coupled to the signaling device, for processing signals for transmission by the signaling device and for processing signals received by the signaling device;wherein the signaling device is arranged to send a range report request to at least one mobile device for determining a position of a plurality of access points (APs) and is arranged to receive, at the signaling device, a range report associated with range measurements performed by the at least one mobile device on each of the plurality of APs to a network entity.32. The network entity of claim 31 , wherein the range report includes range calculations performed by the at least one mobile device at a plurality of locations identifying a position for each of the plurality of APs.33. The network entity of ; wherein the range report includes the range measurements associated with each of the plurality of APs claim 31 , performed by the at least one mobile device claim 31 , for processing by the processor to determine a position for each of the plurality of APs by the network entity.34. The network entity of further comprising a range model for performing claim 31 , under control of the processor claim 31 , statistical analysis on the range measurements received by the ...

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Номер записи: 36

30-01-2020 дата публикации

Multi-algorithm trilateration system

Номер: US20200033439A1

Автор: Donagh S. Horgan, Graham M. Baitson, James B. Hurley, Michael G. Cronin

Принадлежит: Johnson Controls Technology Co

An illustrative embodiment disclosed herein is a system including client devices distributed across an environment and configured to generate distance measurements. The system further includes wireless transceivers. Each transceiver is associated with one of the client devices. Each transceiver is configured to send and receive distance measurements. The system further includes a trilateration circuit in at least one of the client devices. The trilateration circuit is configured to receive the distance measurements from the client devices, determine a first position and a first weight based on the distance measurements via a first algorithm, determine second position and a second weight based on the second distance measurements via a second algorithm, calculate a final position based on the first position, the second position, the first weight, and the second weight, and send the final position to the plurality of client devices.

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Номер записи: 37

04-02-2021 дата публикации

Methods for generating a user interface based upon orientation of a smart device

Номер: US20210034796A1

Автор: Jason E. Duff, Michael S. Santarone, Michael Wodrich, Randall Pugh

Принадлежит: Middle Chart LLC

Methods and apparatus for determining a generating a user interface based upon a location and an orientation of a smart device supported by an Agent in a structure. The interface may include “as built features’ of the structure. A location of the Agent may be determined via wireless communications and a direction of interest based upon a directional sensor.

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Номер записи: 38

31-01-2019 дата публикации

Determining emitter locations

Номер: US20190037520A1

Автор: Nicholas Aaron Mccarthy, Robert W. Mcgwier, Timothy James O'shea

Принадлежит: Hawkeye 360 Inc

First information corresponding to a radio signal received at a first sensing device from a candidate location is obtained. Second information corresponding to a radio signal received at a second sensing device from the candidate location is obtained. A first relationship between the first sensing device and the candidate location and a second relationship between the second sensing device and the candidate location are determined. A first inverse and a second inverse of respectively the first and second relationships are obtained. A first estimate of the radio signal at the first sensing device is determined from the first information and the first inverse. A second estimate of the radio signal at the second sensing device is determined from the second information and the second inverse. Energy emitted from the candidate location is measured based on the first estimate and the second estimate.

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Номер записи: 39

08-02-2018 дата публикации

Discrimination of signal angle of arrival using at least two antennas

Номер: US20180038934A1

Автор: Graham K. SMITH, Mark PASSLER

Принадлежит: SR Technologies Inc

A method, apparatus and RF unit for determining true angles of arrival of a beam received at an antenna array having a pair of antenna elements are provided. In some embodiments, a method includes computing a sum signal based on a sum of signals received from the pair of antenna elements of the antenna array and computing a difference signal based on a first difference of the signals received from the pair of antenna elements of the antenna array. The method also includes computing one of: a ratio of the sum signal to the difference signal; and a second difference between the sum signal and the difference signal. The method also includes determining all possible angles of arrival of the beam based on the one of the ratio and the second difference and then determining the intersection of all the possible angles of arrival for each of the different positions in order to determine the true angles of arrival.

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Номер записи: 40

08-02-2018 дата публикации

PROVIDING AN INDICATION OF A HEADING OF A MOBILE DEVICE

Номер: US20180038936A1

Автор: Ivanov Pavel, KHAN Muhammad Irshan, SYRJARINNE Jari Tapani

Принадлежит:

An apparatus estimates successive headings of a mobile device based on respective results of measurements by the mobile device on radio signal transmitted by a plurality of transmitters to obtain estimated headings (). It computes a mean heading based on a predetermined number of the estimated headings and computing a standard deviation of the predetermined number of estimated headings (). It determines whether the mean heading is to be considered valid based on the computed standard deviation of the estimated headings (). Finally, it provides an indication of the mean heading as an indication of a current heading of the mobile device for use by a specific application only if the mean heading is determined to be considered valid (). 1. A method comprising , performed by at least one apparatus:estimating successive headings of a mobile device based on respective results of measurements by the mobile device on radio signal transmitted by a plurality of transmitters to obtain estimated headings;computing a mean heading based on a predetermined number of the estimated headings and computing a standard deviation of the predetermined number of estimated headings;determining whether the mean heading is to be considered valid based on the computed standard deviation of the estimated headings; andproviding an indication of the mean heading as an indication of a current heading of the mobile device for use by a specific application only if the mean heading is determined to be considered valid.2. The method according to claim 1 , wherein determining whether the mean heading is to be considered valid comprises:comparing the computed standard deviation with a predetermined threshold;determining that the mean heading is to be considered to be valid one of if the standard deviation falls short of the predetermined threshold and if the standard deviation is smaller or equal to the predetermined threshold; andotherwise determining that the mean heading is to be considered not to be ...

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Номер записи: 41

24-02-2022 дата публикации

Communication device, information processing method, and non-transitory computer readable storage medium

Номер: US20220057502A1

Автор: Kenichi Koga, Nobuyoshi Kikuma, Tatsuya Koike, Yoshiki OISHI

Принадлежит: Nagoya Institute of Technology NUC, Tokai Rika Co Ltd

A communication device comprising: a wireless communication section; and a control section configured to correlate a first signal with a second signal from another communication device at a designated interval, convert a data matrix including an array of a plurality of correlation computation results into a format including a matrix product of an expanded modal matrix and an expanded signal matrix, estimate the expanded signal matrix that minimizes a predetermined norm, and estimate reception time of the second signal on a basis of the expanded signal matrix that minimizes the predetermined norm.

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Номер записи: 42

18-02-2021 дата публикации

POSITIONING DEVICE, POSITIONING METHOD, AND POSITIONING SYSTEM

Номер: US20210048504A1

Автор: ASAHARA Takashi, HAYAKAWA Ryo

Принадлежит: Mitsubishi Electric Corporation

A communication unit () treats each of a plurality of nearby devices that are present in the vicinity and whose positions are already known as a target nearby device, and receives a position of the target nearby device from the target nearby device. A device selection unit () selects at least one nearby device to be used from among the plurality of nearby devices, based on an overall accuracy of the target nearby device calculated using a position accuracy that is an accuracy of the position received from the target nearby device by the communication unit and a distance accuracy that is an accuracy of a distance to the target nearby device. A position estimation unit () estimates a position, based on the position received from the nearby device selected by the device selection unit () and a distance to the selected nearby device. 1. A positioning device comprising:a communication interface to treat each of a plurality of nearby devices that are present in a vicinity and whose positions are already known as a target nearby device, and receive a position of the target nearby device from the target nearby device; andprocessing circuitry to:select at least one nearby device to be used from among the plurality of nearby devices, based on an overall accuracy of the target nearby device calculated using a position accuracy that is an accuracy of the position received from the target nearby device by the communication interface and a distance accuracy that is an accuracy of a distance to the target nearby device, andestimate a position, based on the position received from the selected nearby device and a distance to the selected nearby device.2. The positioning device according to claim 1 ,wherein the processing circuitry calculates the distance accuracy, based on a physical condition in relation to the target nearby device.3. The positioning device according to claim 1 ,wherein the processing circuitry selects a required number of nearby devices for estimating the position ...

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Номер записи: 43

18-02-2021 дата публикации

TRANSMISSION SOURCE POSITION ESTIMATION SYSTEM, TRANSMISSION SOURCE POSITION ESTIMATION METHOD, AND TRANSMISSION SOURCE POSITION ESTIMATION PROGRAM

Номер: US20210048505A1

Автор: Kitsunezuka Masaki

Принадлежит: NEC Corporation

A transmission source position estimation system includes a sensor and a position estimation apparatus. The sensor is provided with a characteristic vector classification part and an attribute data extraction part. The characteristic vector classification part classifies a set of characteristic vectors obtained from received signal data of a transmitted wave, into subsets in a feature space. The attribute data extraction part extracts attribute data for each of the subsets and outputs the extracted data as an attribute data sequence. The position estimation apparatus is provided with a data combination part and a position estimation part. The data combination part combines attribute data that match or are similar to at least one attribute for a plurality of attribute data sequences. The position estimation part estimates the position of the transmission source from the combined attribute data and the position of the sensor that receives the transmitted wave. 1. A transmission source position estimation system , comprising:a sensor that classifies a set of characteristic vectors obtained from received signal data of a transmitted wave into subsets in feature space, extracts attribute data for each of the subsets subsets, and outputs the extracted data as an attribute data sequence; anda position estimation apparatus that combines matching or similar attribute data for at least one attribute with respect to a plurality of the attribute data sequences, and estimates the position of a transmission source from the combined attribute data and the position of the sensor that receives the transmitted wave.2. The transmission source position estimation system according to claim 1 , wherein claim 1 , for a first attribute and a second data sequence attribute data included in a plurality of the attribute data sequences claim 1 , the position estimation apparatus corrects the second attribute data sequence so as to maximize similarity degree of the second attribute data ...

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Номер записи: 44

16-02-2017 дата публикации

Method for guiding an aircraft

Номер: US20170046963A1

Автор: Christophe Guettier, Julien Farjon

Принадлежит: Sagem Defense Securite SA

The guiding method such as described correctly guides an aircraft on a platform of an airport, even in complex taxiing areas.

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Номер записи: 45

16-02-2017 дата публикации

FACILITATION OF DETERMINATION OF ANTENNA LOCATION

Номер: US20170048663A1

Автор: Fix Jeremy, Hume Andrew G., Meredith Sheldon Kent

Принадлежит:

Assisted global positioning system (AGPS) information is retrieved from mobile devices and employed to facilitate antenna location. Measurement information, including AGPS information, can be received from a plurality of mobile devices dispersed over a geographical region. The measurement information can include location and timing information for the plurality of mobile devices. A timing difference between co-located antennas of a base station associated with the plurality of mobile devices can be computed. The location of the co-located antennas can be determined based on evaluating errors resultant from estimations based on a plurality of test locations. The measurement information can be aggregated over time and can be employed to update the antenna locations. 1. A machine-readable storage medium , comprising executable instructions that , when executed by a processor , facilitate performance of operations , comprising:determining measurement information from mobile devices, wherein the measurement information comprises assisted global positioning system information; anddetermining an estimated location of an antenna of a base station device based on determining respective chip offsets between radios of the base station device associated with pairs of the mobile devices.2. The machine-readable storage medium of claim 1 , wherein the determining the estimated location comprises:selecting the pairs of the mobile devices, and wherein the pairs of the mobile devices are associated with the assisted global positioning system information.3. The machine-readable storage medium of claim 1 , wherein the mobile devices are associated with a subscriber identity.4. The machine-readable storage medium of claim 1 , wherein the determining the estimated location further comprises:determining respective observed time differences between the radios associated with the pairs of the mobile devices, and wherein the respective observed time differences are determined from the ...

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Номер записи: 46

03-03-2022 дата публикации

ASSISTANCE INFORMATION FOR SIDELINK-ASSISTED POSITIONING

Номер: US20220065979A1

Автор: AKKARAKARAN Sony, BAO Jingchao, Luo Tao, MANOLAKOS Alexandros

Принадлежит:

According to embodiments herein, assistance data may be provided to a UE regarding an anchor UE that provides a reference signal via the SL interface to the UE. Assistance data may include information indicative of the coordinates, height, drift rate, beam characteristics, group delay, and/or other aspects of the anchor UE. The assistance data may be provided to the UE by a location server, a base station, or directly from the anchor UE.

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Номер записи: 47

15-02-2018 дата публикации

SMALL CELL DISCOVERY IN A COMMUNICATION NETWORK

Номер: US20180049112A1

Автор: Wang Yue

Принадлежит:

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a terminal in a wireless communication system includes transmitting, to a macro base station, first information for indicating a link quality between the terminal and a small base station. The method also includes receiving, from the macro base station, a message for instructing a handover, and performing the handover from the macro base station to the small base station according to the message. The handover is determined based on the first information and second information for indicating another link quality between the small base station and the macro base station. 1. A method for operating a terminal in a wireless communication system , the method comprising:transmitting, to a macro base station, first information for indicating a link quality between the terminal and a small base station;receiving, from the macro base station, a message for instructing a handover, wherein the handover is determined based on the first information and second information for indicating another link quality between the small base station and the macro base station; andperforming the handover from the macro base station to the small base station according to the message.2. The method of claim 1 , wherein the second information is one of a numeric claim 1 , a binary claim 1 , or a quantified value.3. The method of claim 1 , wherein the message is received if a value of the second information is equal to or greater than a threshold.4. The method of wherein the message is received if a value of the first information is equal to or greater than another threshold.5. The method of claim 1 , further comprising:transmitting a probing signal to the small base station,wherein the probing signal is transmitted from the small base station to the macro base ...

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Номер записи: 48

14-02-2019 дата публикации

Systems and methods for coherence based positioning

Номер: US20190049551A1

Автор: Jeremie Miller

Принадлежит: Swfl Inc, Swfl Inc D/b/a "filament"

Systems and methods for discovering a device having an unknown location includes: a first signal source having a first known location and a second signal source having a second known location, the first signal source and the second signal source transmit radio signals using a first radio frequency band during a first search cycle; a sampling receiver having a known location that samples radio signals transmitted by the first signal source and the second signal source during the first search cycle; a disoriented sampling receiver having an unknown location that samples radio signals transmitted by the first signal source and the second signal source during the first search cycle; and a signal processor: aggregates the samples of the radio signals from the sampling receiver and the disoriented sampling receiver; analyzes the aggregated samples of the radio signals; and determines a first set of possible locations of the disoriented sampling receiver.

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Номер записи: 49

25-02-2016 дата публикации

Reactive hybrid location determination method and apparatus

Номер: US20160054428A1

Автор: Filip ELDIC

Принадлежит: Bluedot Innovation Pty Ltd

A method is described of using the mobile device so as to control the drain of power from the power source of the mobile device, the mobile device having at least two location determination techniques having respective power drain characteristics, the method includes selecting the location determination technique having a lower power drain characteristic the greater the determined distance of the mobile device from a predetermined location or area, and selecting the location determination technique having the greater power drain characteristic the smaller the determined distance of the mobile device from a predetermined location or area. The method thus uses the least accurate technique when furthest away and the most accurate technique when closer to a predetermined location or area.

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Номер записи: 50

25-02-2021 дата публикации

POSITION DETERMINATION SYSTEMS AND METHODS UTILIZING ERROR OF MULTIPLE CANDIDATE POSITIONS

Номер: US20210055370A1

Автор: Tolentino Matthew E.

Принадлежит:

Examples of systems and methods described herein may be used to track a tagged object through a scene. Techniques are described herein to calculate a position of the tag using wireless communication with multiple anchor devices. In some examples, the anchor devices may be self-localizing, e.g., they may dynamically determine their position and relationship to one another. In some examples, position of a tag may be calculated by calculating multiple candidate positions using different localization techniques—such as geometric localization techniques and/or optimization-based techniques. An error may also be identified associated with each candidate position. A final position may be determined for the tag based on the errors associated with the candidate positions (e.g., the candidate position with the smallest error may be utilized as the position, e.g., the determined position, of the tag). 1. A method comprising:collecting a set of ranges, each of the set of ranges corresponding to a range between a particular device and a respective anchor device of a plurality of anchor devices;calculating a first candidate position of the particular device based on the set of ranges using a geometric localization technique;estimating error associated with the first candidate position;calculating a second candidate position of the particular device and error associated with the second candidate position using an optimization-based technique, based on residual errors relative to each of the plurality of anchor devices;selecting a determined position for the particular device based on the error associated with the first candidate position and the error associated with the second candidate position.2. The method of claim 1 , further comprising collecting a set of positions for the plurality of anchor devices claim 1 , and wherein using the geometric localization technique is further based on the set of positions.3. The method of claim 1 , further comprising selecting a subset of the ...

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Номер записи: 51

03-03-2022 дата публикации

DYNAMIC BANDWIDTH CONFIGURATION FOR POSITIONING REFERENCE SIGNAL (PRS) OPERATION

Номер: US20220069962A1

Автор: AKKARAKARAN Sony, BAO Jingchao, DUAN Weimin

Принадлежит:

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) performs one or more time-based measurements of one or more first positioning reference signal (PRS) occasions transmitted by a first transmission-reception point (TRP), the one or more first PRS occasions having a first bandwidth, receives an indication to switch from measuring PRS occasions from the first TRP in the first bandwidth to measuring PRS occasions from the first TRP in a second bandwidth, and performs one or more angle-only measurements of one or more second PRS occasions transmitted by the first TRP, the one or more second PRS occasions having the second bandwidth.

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Номер записи: 52

22-02-2018 дата публикации

DIRECTION FINDING SYSTEM DEVICE AND METHOD

Номер: US20180052216A1

Автор: ERAD Menachem, ERAD Yariv, VERED GAD, VERED URI

Принадлежит: HISEP TECHNOLOGY LTD.

The invention relates to a method for determining by a direction finder (DF) the direction to a Target, which compriseŝ (a) providing an antenna at said DF, and an array of antennas at the Target; (b) providing a compass at each of said DF and said Target, for determining the azimuth of the DF Heading and of the Target Heading, respectively, with respect to the North; (c) providing at said DF a look-up table which describes n antenna patterns, one per Transmission Mode that may be used respectively at the Target; (d) sequentially performing x Transmission Modes from the Target, each time using another pair of antennas, and during each of said Transmission Modes intentionally, and in a controlled manner attenuating a reception signal at the DF until a loss of communication, and recording the respective attenuation levels; (e) based on said x recorded attenuations levels and said look up table, determining by the DF the direction from the Target to the DF; and (f) receiving at the DF the azimuth of the Target, and based on (i) said determined direction from the Target to the DF (ii) azimuth of the Target; and (iii) azimuth of the DF; calculating by the DF the direction from the DF to the Target. 1. A method for determining by a direction finder (DF) the direction to a Target , which comprises:a. providing an antenna at said DF, and an array of antennas at the Target;b. providing a compass at each of said DF and said Target, for determining the azimuth of the DF Heading and of the Target Heading, respectively, with respect to the North;c. providing at said DF a look-up table which describes n antenna patterns, one per Transmission Mode that may be used respectively at the Target;d. sequentially performing x Transmission Modes from the Target, each time using another pair of antennas, and during each of said Transmission Modes intentionally, and in a controlled manner attenuating a reception signal at the DF until a loss of communication, and recording the respective ...

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Номер записи: 53

13-02-2020 дата публикации

DEVICE AND METHOD FOR ORIENTATION AND POSITIONING

Номер: US20200050287A1

Автор: BURTEA Valentin M., KOSIC Michael, LOHBIHLER Andrew H.

Принадлежит:

Methods and devices for, among other applications, locating an emitter, comprises an array of receivers configured in different angular positions about the array relative to a corresponding array location axis, to receive a signal from the emitter having at least one burst containing a train of pulses, and at least one processor configured to profile pulse count values at each receiver, from one receiver to another in the array in relation to their respective angular positions, to designate a maximum peak angular position associated with a maximum pulse count value, and to attribute the peak angular position to an angular emitter location. 1providing a plurality of spaced receivers, including a group of receivers in respective locating signal-receiving angular positions, each of the receivers having an angular position coordinate value, stored in memory, associated with a designated angle of the receiver relative to a reference axis;enabling each receiver in the group of receivers to receive at least one locating signal from the locating signal emitter, the locating signal including, at least in part, a plurality of pulses in at least one train of pulses; process the locating signal received at each receiver in the group of receivers, to form a pulse count value in relation to a count of pulses above a pulse strength threshold;', 'form a pulse count profile whose coordinates include each pulse count value and the corresponding angular location accessed from memory; and to', 'attribute a designated angular position coordinate value corresponding to a maximum pulse count value in the pulse count profile as a location value representative of at least the heading of the emitter., 'enabling at least one locator processor, in communication with the spaced receivers, at a first clock increment, to. A method for a locator configuration to locate a locating signal emitter, comprising: The entire subject matter, including materials submitted at filing, of the following ...

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Номер записи: 54

26-02-2015 дата публикации

Wireless network hybrid positioning

Номер: US20150057018A1

Автор: Douglas Neal Rowitch, James Douglass Deloach, JR., Leonid Sheynblat, Mark Leo Moeglein, Wyatt Thomas Riley

Принадлежит: Qualcomm Inc

Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data.

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Номер записи: 55

26-02-2015 дата публикации

CONTEXT AND MAP AIDING FOR SELF-LEARNING

Номер: US20150057031A1

Автор: Jarvis Murray Robert, Tidd James Burgess

Принадлежит:

A system and method for determining locations of a plurality of radio frequency (RF) signal sources. The method includes receiving RF signals from the RF signal sources, and determining locations of the RF signal sources based on the received RF signals. The method also includes determining an anchor having an absolute location identified by map data, and then adjusting the determined locations of the RF signal sources based on the anchor. 1. A method for determining locations of a plurality of stationary radio frequency (RF) signal sources that are stationary relative to a mobile collector device , the method comprising:receiving, by the mobile collector device, RF signals from the stationary RF signal sources;determining, by a server device, the locations of the stationary RF signal sources based on the received RF signals received by the mobile collector device;determining, by the server device, an anchor having an absolute location identified by map data; andadjusting, by the server device, the determined locations of the stationary RF signal sources based on the determined absolute location of the anchor.2. The method of claim 1 , wherein the RF signal sources are transmitting the RF signals from indoor locations.3. The method of claim 1 , wherein the RF signal sources are transmitting the RF signals from outdoor locations.4. The method of claim 1 , wherein the mobile collector device identifies the anchor based on environmental measurements measured by sensors included in the mobile collector device.5. The method of claim 1 , includingreceiving, by the server device, environmental context information indicating that the mobile collector device is located indoors, outdoors or transitioning between indoors and outdoors, the environmental context information including at least one of global navigation satellite system (GNSS) information from a GNSS receiver of the mobile collector device, or sensor information from a sensor of the mobile collector device; ...

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Номер записи: 56

23-02-2017 дата публикации

Locating a mobile station and applications therefor

Номер: US20170055130A1

Автор: Charles L. Karr, Dennis J. Dupray, Frederick W. LeBlanc

Принадлежит: Finetrak LLC

A location system is disclosed for wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location systems for outputting requested locations of hand sets or mobile stations (MS) based on, e.g., AMPS, NAMPS, CDMA or TDMA communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The system uses a plurality of mobile station locating technologies including those based on: (1) two-way TOA and TDOA; (2) home base stations and (3) distributed antenna provisioning. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways. The system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.

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Номер записи: 57

13-02-2020 дата публикации

OBJECT TRACKING AND AUTHENTICATION USING MODULAR WALL UNITS

Номер: US20200053689A1

Автор: Barnett Wade R., Couch Jay C., Della Silva Clark, Johnston Scott G., McQueen Travis J., Merrill Christopher

Принадлежит: Apple Inc.

A system may include one or more processors and a host unit installed in a support structure of a building, the host unit including a communication module configured to send or receive communication data with at least one or more additional host units installed in the building, where the one or more processors are configured to measure an attribute of the sent or received communication data and detect a presence of an object based on a threshold change in the measured attribute of the sent or received communication data between the host unit and the one or more additional host units. The attribute can be an angle-of-signal (AoS) arrival of the communication between the host unit and each of the one or more additional host units, where the threshold change in the measured attribute is a threshold change in the measured AoS arrival. 1. A system comprising:one or more processors; anda host unit installed in a support structure of a building, the host unit including:a communication module, controlled by the one or more processors, and configured to send or receive communication data with at least one or more additional host units installed in the building,wherein the one or more processors are configured to:measure an attribute of the sent or received communication data; anddetect a presence of an object based on a threshold change in the measured attribute of the sent or received communication data between the host unit and the one or more additional host units.2. The system of claim 1 , wherein the attribute is a time-of-flight (TOF) of the sent or received communication data claim 1 , wherein the one or more processors are further configured to measure a distance between the host unit and each of the one or more additional host units based on the TOF of the sent or received communication data claim 1 , and wherein the threshold change in the measured attribute is a threshold change in the measured distance.3. The system of claim 1 , wherein the attribute is an angle ...

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Номер записи: 58

02-03-2017 дата публикации

SUPPORT OF DOWNLINK POSITIONING USING COHERENT AND NON-COHERENT SIGNAL ACQUISITION

Номер: US20170059689A1

Автор: Edge Stephen William, Fischer Sven, OPSHAUG Guttorm

Принадлежит:

Techniques are discussed for conveying frequency error characteristics for a plurality of cell transceivers from a server to a mobile device to enable the mobile device to determine an optimum or near optimum period of coherent integration of a downlink signal from one or more of the plurality of cell transceivers based on the frequency error characteristics. The coherent integration of the downlink signal may be to support a downlink terrestrial positioning method such as the Observed Time Difference of Arrival (OTDOA) method for Long Term Evolution (LTE) and the downlink signal may be a Positioning Reference Signal (PRS). A mobile device may perform downlink signal integration for longer periods than the optimum period for coherent integration by combining coherent integration results using non-coherent integration. The optimum period may achieve maximum or near maximum signal to noise ratio. 1. A method at a mobile device comprising:obtaining one or more messages from a server comprising positioning assistance data for a downlink terrestrial positioning method, the positioning assistance data identifying a plurality of cell transceivers, the positioning assistance data further comprising one or more frequency error characteristics for at least one of the plurality of cell transceivers; anddetermining a usage of coherent integration, based on at least one of the frequency error characteristics to measure a characteristic of a downlink signal for at least one of the plurality of cell transceivers according to the downlink terrestrial positioning method.2. The method of claim 1 , and further comprisingmeasuring the characteristic of the downlink signal based, at least in part, on the usage of coherent integration.3. The method of claim 2 , wherein measuring the characteristic of the downlink signal for the at least one of the plurality of cell transceivers comprises:obtaining one or more coherent integration results, wherein each coherent integration result is ...

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Номер записи: 59

20-02-2020 дата публикации

SYSTEMS, METHODS, AND DEVICES FOR VERIFICATION OF POSITION ESTIMATION USING AN ORIENTATION SENSOR

Номер: US20200057134A1

Автор: BERGKVIST Hannes, BERGKVIST Ivar, FALK Mattias, FÄNGE Thomas

Принадлежит:

A method of determining the location of the first object () may include receiving signals at a second object () from a plurality of measurement points () on the first object (), estimating locations of the plurality of measurement points () on the first object (), determining an estimate of a location of the first object (), determining a first measurement of an orientation of the first object () based on the estimating of the locations of the plurality of measurement points () on the first object (), and determining a second measurement of the orientation of the first object () based on measurements by an orientation sensor () on the first object (). The method may include estimating an error of the estimate of the location of the first object () based on a difference between the first and second orientation measurements and adjusting a movement of the second object () based on the estimated error. 1. A method of determining a location of a first object , the method comprising:receiving signals at a second object from a plurality of measurement points on the first object;estimating locations of the plurality of measurement points on the first object based on the signals received at the second object from the plurality of measurement points on the first object;determining an estimate of a location of the first object based on the estimating of the locations of the plurality of measurement points on the first object;determining a first measurement of an orientation of the first object based on the estimating of the locations of the plurality of measurement points on the first object;determining a second measurement of the orientation of the first object based on measurements by an orientation sensor on the first object;estimating an error of the estimate of the location of the first object based on a difference between the first measurement of the orientation of the first object and the second measurement of the orientation of the first object; andadjusting a ...

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Номер записи: 60

17-03-2022 дата публикации

POSITIONING REFERENCE SIGNAL (PRS) TIME AND FREQUENCY PATTERN ADAPTATION FOR USER EQUIPMENT (UE) POWER SAVING

Номер: US20220082649A1

Автор: DUAN Weimin, LY Hung Dinh, MANOLAKOS Alexandros

Принадлежит:

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) reports, to a network entity, a minimum number of symbols of a positioning reference signal (PRS) resource of a first transmission-reception point (TRP) of a pair of TRPs based on a reference signal time difference (RSTD) uncertainty parameter for the pair of TRPs, wherein the minimum number of symbols is less than a total number of symbols allocated for the PRS resource, and performs a positioning measurement of the minimum number of symbols of the PRS resource. 1. A method of wireless positioning performed by a user equipment (UE) , comprising:reporting, to a network entity, a minimum number of symbols of a positioning reference signal (PRS) resource of a first transmission-reception point (TRP) of a pair of TRPs based on a reference signal time difference (RSTD) uncertainty parameter for the pair of TRPs, wherein the minimum number of symbols is less than a total number of symbols allocated for the PRS resource; andperforming a positioning measurement of the minimum number of symbols of the PRS resource.2. The method of claim 1 , wherein the minimum number of symbols meets:T*1000*M/(14*N) greater than a value of the RSTD uncertainty parameter,where T is a length of a slot containing the PRS resource, M is the minimum number of symbols, and N is a comb size of the PRS resource within the slot.3. The method of claim 1 , wherein a comb size for the PRS resource is determined based on the minimum number of symbols.4. The method of claim 3 , wherein:the minimum number of symbols is reported in a first slot, andthe positioning measurement of the minimum number of symbols is performed in a second slot after the first slot.5. The method of claim 1 , further comprising:determining the minimum number of symbols based on a comb size for the PRS resource within a slot.6. The method of claim 1 , further comprising:reporting a second minimum number of symbols of a second PRS resource of a ...

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Номер записи: 61

10-03-2016 дата публикации

METHODS AND APPARATUS FOR DETERMINING RELATIONSHIPS IN HETEROGENEOUS NETWORKS

Номер: US20160069984A1

Автор: Nylander Tomas, STÁLNACKE Per-Daniel, Zee Oscar

Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

A method enables automatic determination that an area covered by an Access Point (AP) of a Wi-Fi Radio Access Network (RAN) overlaps with a cell of a 3GPP RAN. The method comprises, at an entity of the Wi-Fi RAN, obtaining a 3GPP identifier related to a user terminal that is attached to the Wi-Fi RAN and an identifier for an AP of the Wi-Fi RAN to which the terminal is attached. The method further comprises, at the entity, generating and sending a Location Service Request including the 3GPP identifier to a Location Services (LCS) Server associated with the 3GPP RAN, receiving a Location Service Response from the LCS Server that includes information identifying a cell of the 3GPP RAN in which the user terminal is located, and causing storage of an association between the identified Wi-Fi AP and the identified 3GPP cell. 1. A method enabling automatic determination that an area covered by an Access Point , AP , of a Wi-Fi Radio Access Network , RAN , overlaps with a cell of a 3GPP RAN , the method comprising , at an entity of the Wi-Fi RAN:obtaining a 3GPP identifier related to a user terminal that is attached to the Wi-Fi RAN and an identifier for an AP of the Wi-Fi RAN to which the terminal is attached;generating and sending a Location Service Request including the 3GPP identifier to a Location Services, LCS, Server associated with the 3GPP RAN; andreceiving a Location Service Response from the LCS Server that includes information identifying a cell of the 3GPP RAN in which the user terminal is located; andcausing storage of an association between the identified Wi-Fi AP and the identified 3GPP cell.2. The method of claim 1 , and further comprising:configuring the Wi-Fi entity to function as a LCS Client of the LCS Server.3. The method of claim 1 , wherein causing storage of an association between the identified Wi-Fi AP and the identified 3GPP cell comprises storing the association in a memory of the Wi-Fi RAN entity.4. The method of claim 3 , wherein it is ...

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Номер записи: 62

08-03-2018 дата публикации

Location Estimation System

Номер: US20180067191A1

Автор: Hamilton Michael

Принадлежит:

A location estimation system includes a plurality of Kalman filters, a UWB position system, a pressure sensor, a temperature sensor and a MEMs chip that provides gyroscope, accelerometer and magnetometer information. The data is Kalman filtered to determine precise location information that is more precise any sensor that is processed to determine the probably location of a device. 1. A method performed by a tag/processor device for estimating its probable location , comprising:receiving, via an ultra-wide band communication transceiver, ultra-wide band RF signals containing locations of each of at least three anchors;determining, via a processor, ranging information of each of at least three anchors by transmitting and receiving ultra-wideband communication messages via the ultra-wide band device and determining an associated transmission time of flight between the tag/processor device and the at least three anchors;determining an altitude of the tag/processor device based on temperature and pressure data;determining a distance between the tag/processor device and the at least three anchors from the determined ranging information;determining X, Y and Z coordinates based on the determined distances; andKalman filtering, in a plurality of Kalman filters, the X, Y and Z coordinates to determine a probable location having a first degree of resolution to adjust the X, Y and Z coordinates.2. The method of further including calculating the associated time of flight for transmissions from each of the at least three anchors by claim 1 , for each anchor claim 1 , receiving a transmission time and subtracting the transmission time from a received time.3. The method of further including determining the tag/processor device location estimate by calculating a probably distance between the tag/processor device and the at least three anchors based on the associated time of flight calculations.4. The method of further comprising receiving information from a MEMs device and ...

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Номер записи: 63

27-02-2020 дата публикации

ELECTROMAGNETIC TRACKING WITH AUGMENTED REALITY SYSTEMS

Номер: US20200064431A1

Автор: Aly Aly H. M., Bucknor Brian, Lopez Christopher, Palmer James William, Rynk Evan Francis, Woods Michael Janusz

Принадлежит:

Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers. 1. An augmented reality (AR) display system comprising:a display configured to project virtual images to eyes of a wearer;a frame configured to mount the display in front of the eyes of the wearer;one or more cameras mechanically coupled to the frame and configured to capture images of an environment in front of the wearer;an electromagnetic (EM) field emitter configured to generate a magnetic field;an EM sensor configured to sense the magnetic field, wherein one of the EM field emitter or the EM sensor is mechanically coupled to the frame and the other of the EM field emitter or the EM sensor is mechanically coupled to a component of the AR display system that is independently movable relative to the frame; and receive images of the environment in front of the wearer from the one or more cameras;', 'receive signals from the EM sensor indicative of a sensed magnetic field;', 'analyze the received images to determine whether the component of the AR display system is outside of a field of view (FOV) of the one or more cameras; and', 'determine a position ...

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Номер записи: 64

27-02-2020 дата публикации

Detecting radio signal emitter locations

Номер: US20200064434A1

Автор: Nicholas Aaron Mccarthy, Robert W. Mcgwier, Timothy James O`Shea

Принадлежит: Hawkeye 360 Inc

First information is obtained from a sensing device at a first time. The first information corresponds to a radio signal received at the device from a candidate location. The device is at a first location at the first time. Second information is obtained from the device at a second time. The second information corresponds to a radio signal received at the device from the candidate location. The device is at a second location at the second time. A system determines that a pattern is in each of the first and second information and determines relationships between the candidate location and the device at each first and second location. The system obtains inverses of the relationships and determines estimates of the received radio signals based on the information and inverses. The system measures or estimates energy emitted from the candidate location based on the estimates.

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Номер записи: 65

27-02-2020 дата публикации

CLASSIFYING POTENTIALLY STATIONARY OBJECTS TRACKED BY RADAR

Номер: US20200064436A1

Автор: Dang Wenbing, Nagaraja Keerthi Raj, Schiffmann Franz P., Schiffmann Jan K., Vishwajeet Kumar

Принадлежит:

An illustrative example method of tracking a detected object comprises determining that a tracked object is near a host vehicle, determining an estimated velocity of the tracked object, and classifying the tracked object as frozen relative to stationary ground when the estimated velocity is below a preselected object threshold and a speed of the host vehicle is below a preselected host threshold. 1. A method of tracking a detected object , the method comprising:determining that a tracked object is near a host vehicle;determining an estimated velocity of the tracked object; andclassifying the tracked object as frozen relative to stationary ground when the estimated velocity is below a preselected object threshold and a speed of the host vehicle is below a preselected host threshold.2. The method of claim 1 , wherein classifying the tracked object as frozen comprises freezing a determined orientation claim 1 , length claim 1 , width claim 1 , and centroid position of the tracked object with respect to stationary ground.3. The method of claim 1 , wherein when the tracked object is classified as frozen claim 1 , periodically updating an estimate of speed claim 1 , curvature claim 1 , and yaw rate for the tracked object.4. The method of claim 3 , comprising estimating the speed claim 3 , curvature claim 3 , yaw rate claim 3 , and position of the object using a Kalman filter.5. The method of claim 1 , comprisingclassifying the tracked object as not frozen when the speed of the host vehicle exceeds the preselected host threshold or the estimated velocity of the tracked object exceeds the preselected object threshold.6. The method of claim 1 , wherein the object is a second vehicle.7. The method of claim 6 , wherein the second vehicle is oriented in a direction parallel to the host vehicle.8. The method of claim 1 , wherein the estimated velocity of the object is an over the ground velocity.9. The method of claim 1 , wherein the estimated velocity of the object is a ...

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Номер записи: 66

09-03-2017 дата публикации

System and method for locating objects

Номер: US20170067983A1

Автор: Mordechai Teicher

Принадлежит: TechIP International Ltd

A plurality of location beacons is deployed within a site that is divided into zones. A plurality of assets is distributed within the site, each asset having an asset beacon attached to it. A tag occasionally moving within the site continually locates its current zone by detecting short-range signals received from location beacons, and when detecting an asset beacon, the tag locates the respective asset within the current zone of the tag.

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Номер записи: 67

11-03-2021 дата публикации

LOCATION DETERMINATION USING CROWD SOURCED INFORMATION

Номер: US20210072342A1

Автор: SADRIEH Seyed Nima

Принадлежит:

A method of determining locations of access points in a venue, one or more electronic devices configured to receive radio signals from the access points, the method comprises: generating and storing, at a server in communication with the one or more electronic devices, a database comprising information received from the one or more electronic devices, the information comprising: values associated with a radio signal characteristic of the radio signals at locations of RF scan capture by the one or more electronic devices and access point identifiers representing access points corresponding to the values, the locations of RF scan capture being unknown at a time of RF scan capture; assigning correlation values to quantify similarity between the values for pairs of the access point identifiers; mapping the correlation values to correlation ranges based on known locations of at least two of the access points; determining the locations of the access points based on the correlation ranges and the known locations. 1. A method of determining locations of access points in a venue , one or more electronic devices configured to receive radio signals from the access points , the method comprising:generating and storing, at a server in communication with the one or more electronic devices, a database comprising information received from the one or more electronic devices, the information comprising: values associated with a radio signal characteristic of the radio signals at locations of RF scan capture by the one or more electronic devices and access point identifiers representing access points corresponding to the values, the locations of RF scan capture being unknown at a time of RF scan capture;assigning correlation values to quantify similarity between the values for pairs of the access point identifiers;mapping the correlation values to correlation ranges based on known locations of at least two of the access points;determining the locations of the access points based on ...

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Номер записи: 68

11-03-2021 дата публикации

Method and device for determining vehicle parameters

Номер: US20210072364A1

Автор: Andreas Weinlich, Marten Kabutz, Thomas Smits, Tobias Schmalriede

Принадлежит: Continental Automotive GmbH

A method comprises determining the distance between a first transceiver unit and a second transceiver unit, wherein the first transceiver unit is mounted on a vehicle and the second transceiver unit is mounted on a trailer connected to the vehicle. The method also includes determining at least one parameter relating to the trailer, taking into account the distance between the first transceiver unit and the second transceiver unit.

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Номер записи: 69

08-03-2018 дата публикации

Robust reference signal time difference measurements

Номер: US20180070209A1

Автор: Amit Jain, Borislav Ristic, Dinesh Subramani, Gautam Nirula, Harisrinivas Chandrasekar, Prabhu Kandasamy

Принадлежит: Qualcomm Inc

Disclosed embodiments pertain to combining Reference Signal Time Difference (RSTD) measurements from partial measurement sessions that result when a single measurement session is interrupted by one or more interruption events including Out of Service (OOS) or Inter-Frequency Handover (IFH) events. In some embodiments, first Time Of Arrival (TOA) measurements of cellular signals during a plurality of discontiguous partial measurement sessions separated by one or more interruption events may be obtained. Second TOA measurements based on a reference time source may be obtained for a plurality of the first TOA measurements from at least two partial measurement sessions. A cell associated with a second TOA measurement may be selected as a reference cell and for each non-reference cell associated with a second TOA measurement, a corresponding RSTD measurement may be obtained relative to the selected reference cell.

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Номер записи: 70

27-02-2020 дата публикации

Contextually Configuring Consistent Proximity Beacon Identifiers

Номер: US20200068065A1

Автор: Greenberger Jeremy A., Jenkins Jana H.

Принадлежит:

Administration and consistency of proximity beacon naming within one or more venues is improved by use of a mobile device to discover ranges of the beacons, and upon discovery, determining a location of a mobile computing device within the venue; receiving at the location by the mobile computing device one or more identifiers from one or more proximity beacons within range of the location; and updating by the mobile device at least one of the one or more identifiers according to a proximity beacon naming policy. 1. A method for improving administration and consistency of proximity beacon naming within a venue , comprising:receiving, by a computer, from a wireless proximity beacon, a unique identifier, a major number, and a minor number;extracting, by a computer, from the major number, an indication of a site location corresponding to the wireless proximity beacon, and from the minor number, an indication of at least one sub-location within the indication of a site location;determining, by a computer, an actual location of a mobile computing device within a venue using wireless signal triangulation; andresponsive to detecting, by a computer, a mismatch between the extracted site location, the sub-location, the actual location, and a beacon name coding policy, sending, by the computer, to the wireless proximity beacon, an administrative command to change the wireless proximity beacon's major number, minor number, or both, to match the wireless proximity beacon's actual location according to the beacon name coding policy.2. The method as set forth in further comprising:notifying a user of the mobile computing device, via a user interface, of the received a unique identifier, a major number, and a minor number;proposing by the mobile device to the user via the user interface one or more changes to the a major number, and a minor number, or both, according to the naming policy; andreceiving one or more user-selected changes from the user interface;wherein the ...

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Номер записи: 71

24-03-2022 дата публикации

METHOD AND SYSTEM FOR PROCESSING A SIGNAL TRANSMITTED TO A MOTOR VEHICLE BY A REMOTE COMMUNICATING ENTITY

Номер: US20220091219A1

Автор: LABIOD Houda, MAFRICA Stefano, MONTEUUIS Jean Philippe, SERVEL Alain, ZHANG JUN

Принадлежит:

The invention relates to a method for processing, by a computer system () installed on board a motor vehicle, a signal transmitted by a remote communicating entity and received by means of a radiofrequency signal communication apparatus arranged inside the vehicle, and to a system implementing such a method and to a motor vehicle comprising such a system. The aim of the invention is to determine the plausibility of a radiofrequency signal transmitted by a remote communicating entity, in particular a signal that contains data relative to a followed course and/or a geographical position of the vehicle. 1. A method for processing , by a computer system installed on board a motor vehicle , of a signal transmitted by a remote communicating entity and received by means of a radiofrequency signal communication apparatus arranged inside the vehicle , wherein the method comprises the steps of:determining, by using the signal, at least one characteristic parameter of the signal and data characterizing a piece of content of the signal,acquiring measurement data generated using a detection device arranged inside the vehicle, a vehicle navigation system configured to interact with a satellite positioning system, and/or the radiofrequency signal communication apparatus,determining a value of a first primary plausibility parameter relative to a course followed by the vehicle using the characteristic parameter of the signal, the data characterizing a piece of content of the signal, and the measurement data,determining a value of a second primary plausibility parameter relative to a geographical position of the vehicle as a function of a value of a first secondary plausibility parameter and of a value of a second secondary plausibility parameter that have been determined, for the value of the first secondary plausibility parameter, using the characteristic parameter of the signal, and for the value of the second secondary plausibility parameter, using the data characterizing a piece ...

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Номер записи: 72

24-03-2022 дата публикации

METHOD AND APPARATUS FOR ESTIMATING POSITION OF SIGNAL SOURCE

Номер: US20220091220A1

Автор: Jo Sung Jin, JOO Jeung Min, KIM Jung Hoon, Kim Sang Won, Lee Dong Keun

Принадлежит:

Provided is a technology for increasing accuracy of position estimation by estimating a position of a signal source based on an error due to altitudes of a sensor and a signal source and an error due to a pitch of an aircraft as well as an error due to curvature of the earth. At this time, a position estimation method may include receiving measurement data from a plurality of sensors, estimating first position data of the signal source based on the measurement data, identifying an altitude error of the first position data, and estimating second position data that is data obtained by correcting the first position data based on the altitude error. 1. A method of estimating a position of a signal source , the method comprising:receiving measurement data from a plurality of sensors;estimating first position data of the signal source based on the measurement data;identifying an altitude error of the first position data; andestimating second position data that is data obtained by correcting the first position data based on the altitude error.2. The method of claim 1 , wherein the identifying of the altitude error comprises:identifying an altitude error range based on the altitude error;identifying a reference altitude error tolerance threshold; andidentifying a result of comparison between the altitude error range and the reference altitude error tolerance threshold.3. The method of claim 2 , wherein when an altitude error range for the first position data is greater than the reference altitude error tolerance threshold claim 2 , the estimating of the second position data comprises:estimating the second position data by designating an altitude of the first position data.4. The method of claim 1 , wherein the estimating of the first position data comprises:determining a direction vector for the signal source using the measurement data and position data of the sensors;determining a direction vector for an arrangement of the sensors;estimating predicted direction information ...

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Номер записи: 73

05-03-2020 дата публикации

Distributed location determination in wireless networks

Номер: US20200072984A1

Автор: Amer Aref Hassan, Mahendra D. Sekaran, Russell Andrew Penar

Принадлежит: Microsoft Technology Licensing LLC

In some embodiments, a location of a mobile terminal is determined by obtaining a location of a first access point (AP), receiving a visibility indication indicating that a second AP received a signal from the first AP or the first AP received a signal from the second AP, determining a location of the second AP based on the received visibility indication and the location of the first AP, determining a location of the mobile terminal in communication with the second AP based on the determined location of the second AP, and transmitting a message indicating the location of the mobile terminal on a digital communication network.

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Номер записи: 74

18-03-2021 дата публикации

METHOD AND APPARATUS FOR WIRELESS NETWORK HYBRID POSITIONING

Номер: US20210080596A1

Автор: DeLOACH, JR. James, Moeglein Mark Leo, Riley Wyatt Thomas, Rowitch Douglas Neal, Sheynblat Leonid

Принадлежит:

Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data. 1. A method for location determination , the method comprising:receiving, by a first mobile station, during a first time period, satellite positioning system (SPS) signals from SPS satellites;determining, by the first mobile station during the first time period, one or more positions of the first mobile station based on the received SPS signals;receiving, by the first mobile station, at the one or more positions of the first mobile station during the first time period, first wireless signals from a first access point of a first wireless network, wherein the first wireless signals received from the first wireless access point comprise identification information of the first wireless access point, wherein the first wireless network is a wireless local area network (WLAN), and wherein the first mobile station is not authorized to have access to the first wireless network;transmitting, from the first mobile station to a location server, information comprising the one or more positions of the ...

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Номер записи: 75

24-03-2022 дата публикации

UPLINK COORDINATED MULTIPOINT POSITIONING

Номер: US20220095261A1

Автор: Berg Miguel, DWIVEDI Satyam, Skof Mike, Smith Roland

Принадлежит: Telefonaktiebolaget lM Ericsson (publ)

A method and network node for uplink coordinated multipoint positioning are disclosed. According to one aspect, a method includes employing a coordinated multipoint function to decode data from a WD using signals received from the WD by the network node and from signals received from the WD by a plurality of cooperating network nodes. The method further includes converting the decoded WD data signal into a time domain reference signal and convert the signals received from the plurality of cooperating network nodes into time domain neighbour signals. The method also includes cross-correlating the time domain reference signal with the time domain neighbour signals to determine a time difference of arrival for each of the plurality of time domain neighbour signals. The method also includes calculating a position of the WD based on the time differences of arrival and based on locations of the cooperating network nodes. 1. A network node configured to communicate with a wireless device (WD) , the network node comprising:at least one processor; and{'claim-text': ['employing a coordinated multipoint process to decode data from a WD using signals received from the WD by the network node and from signals received from the WD by a plurality of cooperating network nodes;', 'converting the decoded WD data signal into a time domain reference signal and convert the signals received from the plurality of cooperating network nodes into time domain neighbor signals;', 'cross-correlating the time domain reference signal with the time domain neighbor signals to determine a time difference of arrival for each of the plurality of time domain neighbor signals; and', 'calculating a position of the WD based on the time differences of arrival and based on locations of the cooperating network nodes.'], '#text': 'memory storing software instructions configured to control the at least one processor to implement a process including:'}2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. ( ...

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Номер записи: 76

22-03-2018 дата публикации

METHOD AND APPARATUS FOR OBTAINING TIME OF ARRIVAL TOA WHEN MOBILE TERMINAL IS LOCATED

Номер: US20180081024A1

Автор: CUI Jie, Li Anjian, Li Yijie, XUE Jiantao

Принадлежит: Huawei Technologies Co., Ltd.

Embodiments of the present invention disclose a method which including: receiving a locating reference signal sent by a locating transmitter; performing time domain related processing on the locating reference signal and a synchronization reference signal sequence to obtain a related spectrum value of a multipath signal component corresponding to a delay value; detecting a channel parameter used when the locating reference signal is received, and generating, according to the channel parameter and a function that progressively decreases with the delay value, a related spectrum threshold that progressively decreases with the delay value; and traversing the delay value in ascending order of the delay value, searching for a first traversed delay value whose related spectrum value of a multipath signal component corresponding to the delay value is greater than a related spectrum threshold corresponding to the delay value, and using the found delay value as TOA for outputting. 1. A method for obtaining time of arrival (TOA) when a mobile terminal is located , wherein the method comprising:receiving a locating reference signal sent by a locating transmitter;performing time domain related processing on the locating reference signal and a synchronization reference signal sequence to obtain a related spectrum value of a multipath signal component corresponding to a delay value;detecting a channel parameter used when the locating reference signal is received, and generating, according to the channel parameter and a function that progressively decreases with the delay value, a related spectrum threshold that progressively decreases with the delay value; andtraversing the delay value in ascending order of the delay value, searching for a first traversed delay value whose related spectrum value of a multipath signal component corresponding to the delay value is greater than a related spectrum threshold corresponding to the delay value, and using the found delay value as TOA for ...

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Номер записи: 77

14-03-2019 дата публикации

VEHICLE COMMUNICATION CONTROL DEVICE

Номер: US20190079161A1

Автор: SOGABE Haruhiko

Принадлежит:

A vehicle communication control device used for a vehicle includes a nearby vehicle information acquirer, a subject vehicle information generator, an assistance information generator, a difference calculator, and a cycle changer. The nearby vehicle information acquirer successively acquires nearby vehicle information representing running condition of a nearby vehicle and generation time of the nearby vehicle information. The subject vehicle information generator cyclically generates subject vehicle information representing running condition of a subject vehicle. The assistance information generator generates assistance information for driving assistance of the subject vehicle by using the nearby vehicle information and the subject vehicle information. The difference calculator calculates a difference between generation time of the most recent subject vehicle information and generation time of the most recent nearby vehicle information. The cycle changer changes a generation cycle of the subject vehicle information so as to decrease the difference. 1. A vehicle communication control device used for a vehicle , comprising:a nearby vehicle information acquirer configured to successively acquire nearby vehicle information representing a running condition of at least one nearby vehicle around a subject vehicle and generation time of the nearby vehicle information, wherein the nearby vehicle information and the generation time are generated in an in-vehicle unit mounted on the at least one nearby vehicle and successively transmitted by communication from outside the subject vehicle;a subject vehicle information generator configured to cyclically generate subject vehicle information representing a running condition of the subject vehicle;an assistance information generator configured to generate assistance information for driving assistance of the subject vehicle by using the nearby vehicle information and the subject vehicle information;a difference calculator configured ...

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Номер записи: 78

31-03-2022 дата публикации

METHOD AND DEVICE FOR POSITIONING UTILIZING BEAM INFORMATION

Номер: US20220099785A1

Автор: Berggren Anders, Karlsson Peter, PRIYANTO Basuki

Принадлежит:

A wireless communications device () includes a wireless interface () for conducting wireless communications with one or more network nodes () of a wireless communications network (). The wireless communications device () further includes a control circuit () configured to receive a plurality of reference signals transmitted by the one or more network nodes (), measure the plurality of reference signals to generate a plurality of positioning measurements, associate the plurality of positioning measurements with beam information, and select a set of positioning measurements with associated beam information for determining a positioning estimate of the wireless communications device (). 1. A method for providing beam-related information for positioning of a user equipment , comprising:receiving a plurality of reference signals transmitted by one or more network nodes;generating a plurality of positioning measurements based on the plurality of reference signals;associating the plurality of positioning measurements with beam information; andselecting a set of positioning measurements with associated beam information to utilize for a positioning estimate.2. The method of claim 1 , further comprising reporting the selected set of positioning measurements with associated beam information to a positioning computation node for estimating a position of the user equipment.3. The method of claim 2 , wherein the selected set of positioning measurements with associated beam information is reported in accordance with instructions received from a network node.4. The method of claim 1 , further comprising estimating claim 1 , by the user equipment claim 1 , a position of the user equipment based on the selected set of positioning measurements with associated beam information.5. The method of claim 4 , wherein estimating the position of the user equipment is further based on positions of the one or more network nodes.6. The method of claim 1 , wherein selecting the set of positioning ...

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Номер записи: 79

25-03-2021 дата публикации

Positioning System and Method

Номер: US20210088619A1

Автор: Hillier Peter M.

Принадлежит:

A method and system for providing location information to a mobile device includes providing an apparatus with a beacon. The apparatus stores identification information associated with the apparatus, and obtains information describing the correspondence between location information and apparatus identification information to determine the location of the apparatus from the stored identification information. The apparatus transmits the location information to the beacon which transmits the information to the mobile device. In addition, information defining movement of a mobile device through a navigation zone includes an array of beacons that are in communication with each other. The mobile device is provided at a first location in the navigation zone and communicates with a first beacon to indicate its proximity to the first beacon. The device moves through the zone to other locations and communicates with another beacon in proximity to the second location to indicate its proximity to the second beacon. 1. A method of determining information defining movement of a mobile device through a navigation zone , comprising:in a navigation zone, providing an array of location beacons, wherein each of the location beacons in the array is in communication with one or more other of the location beacons in the array;providing a mobile device at a first location in the navigation zone;with the mobile device, communicating with a first location beacon in the array in proximity to the first location to indicate its proximity to the first location beacon;when the mobile device is moved to a second location in the navigation zone, communicating with the mobile device with a second location beacon in the array in proximity to the second location to indicate its proximity to the second location beacon;with the mobile device, providing the second location beacon with information defining a direction of movement of the mobile device between the first and second locations; andwith the ...

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Номер записи: 80

25-03-2021 дата публикации

METHOD AND APPARATUS FOR WIRELESS NETWORK HYBRID POSITIONING

Номер: US20210088674A1

Автор: DeLOACH, JR. James, Moeglein Mark, Riley Wyatt, ROWITCH Douglas, Sheynblat Leonid

Принадлежит:

Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data. 1. A method for maintaining a location database at a location server , the method comprising:receiving, from a first mobile station, information comprising identification for a first wireless access point, one or more locations of the first mobile station, and positioning information determined by the first mobile station using signals transmitted by the first wireless access point and received by the first mobile station at the one or more locations of the first mobile station, wherein the positioning information includes a signal strength measurement, a timing measurement, or both;determining first location information of the first wireless access point based on the one or more locations of the first mobile station and the positioning information;creating an entry in the location database for the first wireless access point, wherein the entry for the first wireless access point includes the identification for the first wireless access point and the first location information of the first ...

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Номер записи: 81

21-03-2019 дата публикации

Methods for estimating angle of arrival or angle of departure

Номер: US20190086505A1

Автор: Carlos Horacio ALDANA, Hemanth Sampath, Rahul Malik

Принадлежит: Qualcomm Inc

Certain aspects of the present disclosure provide methods and apparatus for estimating angular information, such as angle of arrival (AoA) information or angle of departure (AoD) information.

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Номер записи: 82

05-05-2022 дата публикации

LOCATION ACCURACY AUGMENTATION METHOD WITH ULTRA WIDEBAND

Номер: US20220137176A1

Автор: Barton Robert Edgar, HENRY Jerome, Kalavakuru Sivadeep R., Silverman Matthew Aaron

Принадлежит:

A location server collects from access points at known locations in a venue, which is represented by grid locations defined by parameters accessible to the location server, (i) ultra wideband (UWB) location measurements for a UWB location technology based on UWB transmissions from mobile devices in the venue, and (ii) non-UWB location measurements for non-UWB location technologies based on non-UWB transmissions from the mobile devices. The location server associates the non-UWB location measurements for the non-UWB location technologies with the grid locations, using the UWB location measurements as reference measurements. The location server populates location calibration records for the grid locations of the venue with the non-UWB location measurements associated with the grid locations. The location server calibrates the non-UWB location technologies at the grid locations based on the non-UWB location measurements in the location calibration records associated with the grid locations.

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Номер записи: 83

25-03-2021 дата публикации

ELECTRONIC DEVICE FOR DETERMINING PATH OF LINE OF SIGHT (LoS) AND METHOD FOR THE SAME

Номер: US20210092703A1

Автор: Chiho Kim, Hyunkee MIN, Junghun Lee, Junsu CHOI, Taehun LIM

Принадлежит: SAMSUNG ELECTRONICS CO LTD

An electronic device according to an embodiment includes an mmWave communication module and a processor. The processor is configured to receive a first signal transmitted by a first external electronic device, identify a distance of a transmission path of the first signal, transmit a second signal, receive a third signal obtained when the second signal is reflected, identify a distance of a transmission path of the second signal based on a difference between a transmission time of the second signal and a reception time of the third signal, and determine whether the transmission path of the first signal is a line of sight (LoS) path between the electronic device and the first external electronic device based on a difference between the distance of the transmission path of the first signal and the distance of the transmission path of the second signal. In addition, other embodiments are possible.

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Номер записи: 84

12-05-2022 дата публикации

ULTRA-WIDEBAND LOCALIZATION METHOD, DEVICE, AND SYSTEM

Номер: US20220146618A1

Автор: Chen Yu-Er, Wu Ruey-Beei

Принадлежит:

An ultra-wideband (UWB) localization method, a UWB localization device, and a UWB localization system are provided. The UWB method includes: determining whether or not a plurality of UWB hardware measurement deviations are calibrated; determining, when the UWB hardware measurement deviations are calibrated, whether or not a plurality of anchor coordinates of anchors are automatically measured; obtaining, when the anchor coordinates of the anchors are automatically measured, a plurality of measurement distances between each of the anchors and a tag, respectively, and deducting the UWB hardware measurement deviations from the measurement distances, respectively; and calculating a tag coordinate of the tag according to the measurement distances from which the UWB hardware measurement deviations are deducted. 1. An ultra-wideband (UWB) localization method , adapted to a UWB localization system , the UWB localization system including a tag and a plurality of anchors , the UWB localization method comprising:determining whether or not a plurality of UWB hardware measurement deviations are calibrated;determining, when the UWB hardware measurement deviations are calibrated, whether or not a plurality of anchor coordinates of the anchors are automatically measured;obtaining, when the anchor coordinates of the anchors are automatically measured, a plurality of measurement distances between each of the anchors and the tag, respectively, and deducting the UWB hardware measurement deviations from the measurement distances, respectively; andcalculating a tag coordinate of the tag according to the measurement distances from which the UWB hardware measurement deviations are deducted.2. The UWB localization method according to claim 1 , wherein claim 1 , when the UWB hardware measurement deviations are not calibrated claim 1 , the UWB localization method further comprises:obtaining the measurement distances between each of the anchors and the tag, respectively, and a plurality of ...

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Номер записи: 85

12-05-2022 дата публикации

System for trusted distance measurement

Номер: US20220146619A1

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

Принадлежит: Koninklijke Philips NV

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.

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Номер записи: 86

04-04-2019 дата публикации

Method and apparatus for ranging finding, orienting and/or positioning of single and/or multiple devices

Номер: US20190101614A1

Автор: Andrew H. Lohbihler

Принадлежит: Xyz Interactive Technologies Inc.

A method and apparatus for ranging finding of signal transmitting devices is provided. The method of signal reception is digitally based only and does not require receivers that are analog measurement devices. Ranging can be achieved using a single pulse emitting device operating in range spaced relation with a minimum of a single signal transmitter and a single digital receiver and processing circuitry. In general a plurality of transmitting pulsed emitters may be ranged and positioned virtually simultaneously in 3-dimensions (XYZ coordinates) using a configuration of a plurality of digital receivers arranged in any fixed 3-dimensional configuration. Applications may involve at least one single transmitter to receiver design to determine range, or at least one transmitted reflecting signal off from an object to determine range.

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Номер записи: 87

03-07-2014 дата публикации

Inter-ap distance estimation using crowd sourcing

Номер: US20140187257A1

Автор: Amir A. EMADZADEH, Sai Pradeep Venkatraman, Weihua Gao

Принадлежит: Qualcomm Inc

Techniques are provided for utilizing one or more mobile devices to estimate distances between wireless access points (APs). Embodiments can, for example, enable mobile devices, wireless APs, and/or other systems to estimate a distance between two wireless APs using Round-Trip Time (RTT) measurements obtained by one or more mobile devices. The RTT measurements can be utilized based on whether one or more related Received Signal Strength Indication (RSSI) measurements exceed a threshold value. Embodiments can also utilize crowdsourcing to obtain distance estimation data (e.g., distance estimates, RTT and/or RSSI measurements, etc.) from one or more mobile devices and/or propagate a determined distance, based on the distance estimation data, to multiple devices.

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Номер записи: 88

02-06-2022 дата публикации

LOCALIZATION OF VEHICLES USING BEACONS

Номер: US20220171010A1

Автор: Hsu Yih-Jye

Принадлежит:

Embodiments are disclosed for localization of vehicles using beacons. In an embodiment, a method comprises: determining, using at least one processor of a vehicle, that the vehicle has lost external signals (or is receiving degraded external signals) that are used for estimating a position of the vehicle; determining, using the at least one processor, a set of mobile beacons that are available to assist in estimating the position of the vehicle; receiving, using a communication device of the vehicle, broadcast signals from the set of mobile beacons, the broadcast signals including localization data for the set of mobile beacons; selecting, using the at least one processor, a subset of localization data from the set of mobile beacons for assisting in the position estimation of the vehicle; and estimating, using the at least one processor, the position of the vehicle using the subset of localization data. 1. A method comprising:determining, using at least one processor of a vehicle, that the vehicle has lost external signals that are used for estimating a position of the vehicle;determining, using the at least one processor, a set of mobile beacons that are available to assist in estimating the position of the vehicle;receiving, using a communication device of the vehicle, broadcast signals from the set of mobile beacons, the broadcast signals including localization data for the set of mobile beacons;selecting, using the at least one processor, a subset of localization data from the set of mobile beacons for assisting in the position estimation of the vehicle; andestimating, using the at least one processor, the position of the vehicle using the subset of localization data.2. The method of claim 1 , wherein the subset of localization data include estimated locations of the set of mobile beacons and uncertainty values associated with the estimated locations claim 1 , and the subset of mobile beacons are selected based at least in part on the uncertainty values.3. The ...

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Номер записи: 89

02-06-2022 дата публикации

RECEIVER DESIGN FOR DOPPLER POSITIONING WITH LOW EARTH ORBIT SATELLITES AND DIFFERENTIAL CARRIER PHASE MEASUREMENTS

Номер: US20220171013A1

Автор: ABDALLAH Ali, KASSAS Zak, Khalife Joe

Принадлежит: The Regents of the University of California

System and device configurations, and processes are provided for determining position based on low Earth orbit (LEO) satellite signals. Frameworks described herein can include performing Doppler frequency measurement for received quadrature phase shift keying (QPSK) signals. The framework may include channel tracking operations to determine Doppler shift measurements, a navigation filter operation to determine clock drift based on each Doppler shift measurement from each channel tracking loop, and determining position of a device based on LEO satellite signal sources. Frameworks described herein are also provided for carrier phase differential (CD)—low Earth orbit (LEO) (CD-LEO) measurements that may utilize a base and a rover without requiring prior knowledge of rover position. Embodiments can also cancel effects of ionospheric and tropospheric delays on the carrier phase and CD-LEO measurements. 1. A method for determining position based on low Earth orbit (LEO) satellite signals , the method comprising:receiving, by a device, one or more low earth orbit (LEO) satellite signals, wherein the LEO satellite signals include direct quadrature phase shift keying (QPSK) signals; filtering each received downlink channel, and', 'performing a channel tracking operation for each filtered downlink channel, the channel tracking operation including an independent phase-lock loop to track each filtered downlink signal, wherein each phase-lock loop determines a Doppler shift measurement; and, 'performing, by the device, a Doppler frequency measurement for the quadrature phase shift keying (QPSK) signals for each downlink channel received, wherein the Doppler frequency measurement includes'}performing, by the device, a navigation filter operation to determine clock drift based on each Doppler shift measurement from each channel tracking loop; anddetermining, by the device, a position of the device, wherein the device determines position based on clock drift determined by the ...

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Номер записи: 90

19-04-2018 дата публикации

DEVICE AND METHOD FOR ORIENTATION AND POSITIONING

Номер: US20180107288A1

Автор: BURTEA Valentin M., KOSIC Michael, LOHBIHLER Andrew H.

Принадлежит:

Methods and devices for, among other applications, locating an emitter, comprises an array of receivers configured in different angular positions about the array relative to a corresponding array location axis, to receive a signal from the emitter having at least one burst containing a train of pulses, and at least one processor configured to profile pulse count values at each receiver, from one receiver to another in the array in relation to their respective angular positions, to designate a maximum peak angular position associated with a maximum pulse count value, and to attribute the peak angular position to an angular emitter location. 1100-. (canceled)101. A system for locating an emitter , comprising:a plurality of spaced receivers, each of the receivers having an angular position coordinate value, stored in memory, associated with a designated angle of the receiver relative to a reference axis;each receiver configured to receive at least one locating signal from the emitter, the locating signal including, at least in part, a plurality of pulses in at least one train of pulses; process the locating signal received at each receiver in a group of receivers in respective locating signal-receiving positions, to form a pulse count value in relation to a count of pulses above a pulse strength threshold;', 'form a pulse count profile whose coordinates include the pulse count values and corresponding angular locations; and', 'attribute a designated angular position coordinate value, corresponding to a maximum pulse count value in the pulse count profile, as a location value representative of at least the heading of the emitter., 'at least one locator processor, in communication with the spaced receivers, the at least one locator processor configured to102. A system as defined in claim 101 , wherein the pulses in the train of pulses vary in pulse strength from one pulse to another claim 101 , the locator processor configured to attribute a range value to the locating ...

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Номер записи: 91

02-04-2020 дата публикации

Determining a position estimate of an asset

Номер: US20200103488A1

Автор: Lauri Aarne Johannes Wirola, Mikko Blomqvist

Принадлежит: Here Global BV

A method includes obtaining or holding available a radio map that has been determined based on radio node observation data of radio signals emitted from radio nodes of a radio node network. The method obtains asset observation data of one or more radio signals that have been emitted from an asset and observed by radio nodes of the radio node network. The method also determines a position estimate of the asset based on the asset observation data and the radio map. A corresponding system is also disclosed.

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Номер записи: 92

20-04-2017 дата публикации

Passive proximity detection of wireless devices in a synchronous, cooperative network

Номер: US20170111857A1

Автор: Christopher Richards, Edward Mah, Leonard Lightstone

Принадлежит: Telefonaktiebolaget LM Ericsson AB

Systems and methods for passive proximity detection of wireless devices in a cellular communications network are disclosed. In one embodiment, a supporting radio access node in a cellular communications network including one or more coverage radio access nodes in a coverage layer and one or more supporting radio access nodes in a supporting layer is disclosed. In this embodiment, the supporting radio access node detects a ranging signal transmitted by a wireless device while passively listening for a ranging signal. The supporting radio access node receives ranging assistance information from an anchor radio access node of the wireless device in the coverage layer and determines a range estimate for a range between the wireless device and the supporting radio access node based on the ranging signal transmitted by the wireless device and detected by the supporting radio access node and the ranging assistance information.

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Номер записи: 93

26-04-2018 дата публикации

Systems and Methods for Beacon Device Fleet Management

Номер: US20180113188A1

Автор: Morace Jonathan Robert, Sasaki Peter, Scellato Salvatore, Weaver Mark William

Принадлежит:

Systems and methods for beacon device fleet management are provided. One example system includes a plurality of beacon devices, a plurality of mobile computing devices, a fleet management system, and a fleet owner computing devices. One example method includes receiving, by the fleet management system, a device status request from the fleet owner computing device. The fleet management system determines one or more operational statuses of beacon devices owned by the fleet owner and transmits data indicative of the one or more operational statuses to the fleet owner computing device. The operational statuses can include a current detection status (e.g., online or offline), a location status, a power source status, and/or other operational parameters. 120.-. (canceled)21. A computer-implemented method to enable beacon device fleet management , the method comprising:receiving, by a fleet management system, a plurality of observation reports respectively from a plurality of mobile computing devices, each observation report identifying at least one of a plurality of beacon devices observed by a reporting mobile computing device and describing at least a time at which the reporting mobile computing device observed the identified at least one beacon device;analyzing, by the fleet management system, at least a portion of the plurality of observation reports that are associated with a first beacon device to determine a detection interval for the first beacon device, the detection interval comprising an amount of time that is based at least in part on a historical observation frequency at which the first beacon device has been observed by the mobile computing devices;comparing, by the fleet management system, the detection interval of the first beacon device to a difference between a current time and a timestamp of a most recent observation report associated with the first beacon device; anddetermining, by the fleet management system, a detection status of the first beacon ...

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Номер записи: 94

09-06-2022 дата публикации

Statewide work zone information system

Номер: US20220180455A1

Автор: Gordon Parikh, John Hourdos

Принадлежит: University of Minnesota

A computer system includes a memory and a processor. The processor executes instructions to perform steps that include receiving a message from an asset tracking device, the message comprising position information for the asset tracking device and a traffic control device type for a traffic control device that the asset tracking device is attached to. The processor uses the received message to determine a road that the traffic control device is positioned on and a location of the traffic control device along the road.

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Номер записи: 95

09-06-2022 дата публикации

Incident location reporting using isodistance

Номер: US20220180729A1

Автор: Frederic Bauchot, Joel Viale, Zsolt Szalai

Принадлежит: International Business Machines Corp

In a method for calculating a location of a traffic incident a processor receives a first alarm message. The alarm message has a device identification, an event time stamp indicating detection of an incident, and a first distance vector. The processor calculates first isodistance information from the first distance vector and receives a second alarm message that has the device identification, the event time stamp, and a second distance vector. The processor calculates a second isodistance information for the second alarm message, and calculates a location of the incident based on the first isodistance information and the second isodistance information.

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Номер записи: 96

18-04-2019 дата публикации

SYSTEMS AND METHODS FOR POWER EFFICIENT MOBILE DEVICE COMMUNICATION

Номер: US20190113632A1

Автор: Kilburn Christopher Bjorn, Lucrecio Armando J.

Принадлежит:

Methods, devices, and systems for tracking an asset are provided. In particular, a device is provided that includes a processor; a wide-area network radio; a global positioning system (GPS) receiver; an accelerometer; and a physical interface. The processor determines a GPS signal is unavailable. In response to determining the GPS signal is unavailable, the processor enables one or more sensors. The processor obtains fingerprint data from a first sensor of the one or more sensors. The processor transmits the fingerprint data to a network-based server. The fingerprint data is used by the server to identify a location of the tracking device. 1. A method comprising:determining, by a processor of a tracking device, a GPS signal is unavailable;in response to determining the GPS signal is unavailable, enabling, by the processor, one or more sensors;obtaining, by the processor, fingerprint data from a first sensor of the one or more sensors; andtransmitting, by the processor, the fingerprint data to a network-based server, wherein the fingerprint data is used by the server to identify a location of the tracking device.2. The method of claim 1 , further comprising claim 1 , in response to determining the GPS signal is unavailable claim 1 , disabling claim 1 , by the processor claim 1 , a GPS system-on-chip of the tracking device.3. The method of claim 1 , wherein the first sensor comprises one or more of WiFi claim 1 , Bluetooth claim 1 , Zigbee claim 1 , and a LoRa device.4. The method of claim 1 , wherein the fingerprint data comprises one or more of a network ID claim 1 , signal strength data claim 1 , and a MAC address of a hardware device.5. The method of claim 1 , wherein the fingerprint data is appended to an event report prior to being transmitted to the server.6. The method of claim 5 , wherein transmitting the fingerprint data to the server comprises transmitting the event report to the server.7. The method of claim 1 , wherein the steps of the method are ...

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Номер записи: 97

05-05-2016 дата публикации

Diverse Radio Frequency Signature, Video, and Image Sensing for Detection and Localization

Номер: US20160124071A1

Автор: Baxley Robert John, Engle Michael Thomas, Rouland Christopher Jay

Принадлежит: Bastille Networks, Inc.

Systems and methods can support coprocessing radio signals and video to identify and locate a radio transmitter. Positions and orientations for cameras and RF sensors may be maintained. An RF signature associated with the radio transmitter may be received from the RF sensors to determine an RF persona. A first physical location for the radio transmitter may be estimated according to a physical radio propagation model operating on RF signals. A video stream from one or more of the cameras may be received. An individual may be identified in the video stream using computer vision techniques. A second physical location for the radio transmitter may be estimated from the video stream. Relationships may be established between the first physical location and the second physical location and between the RF persona and the identified individual. The relationships may be presented to an operator interface. 1. A method for coprocessing radio signals and video to identify and locate a radio transmitter , comprising:receiving positions and orientations for cameras and RF sensors;receiving an RF signature associated with the radio transmitter from the RF sensors;determining an RF persona associated with the RF signature;estimating a first physical location for the radio transmitter according to a physical radio propagation model operating on signals associated with the RF sensors;associating the RF persona with the first physical location;receiving a video stream from one or more of the cameras covering an area associated with the RF sensors;identifying an individual in the video stream using computer vision techniques;estimating a second physical location for the radio transmitter according to the identified individual within the video stream;establishing a first relationship between the first physical location and the second physical location;establishing a second relationship between the RF persona and the identified individual; andpresenting the first established relationship ...

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Номер записи: 98

25-04-2019 дата публикации

METHOD AND APPARATUS FOR RANGING FINDING, ORIENTING AND/OR POSITIONING OF SINGLE AND/OR MULTIPLE DEVICES

Номер: US20190120925A1

Автор: LOHBIHLER Andrew H.

Принадлежит:

A method and apparatus for ranging finding of signal transmitting devices is provided. The method of signal reception is digitally based only and does not require receivers that are analog measurement devices. Ranging can be achieved using a single pulse emitting device operating in range spaced relation with a minimum of a single signal transmitter and a single digital receiver and processing circuitry. In general a plurality of transmitting pulsed emitters may be ranged and positioned virtually simultaneously in 3-dimensions (XYZ coordinates) using a configuration of a plurality of digital receivers arranged in any fixed 3-dimensional configuration. Applications may involve at least one single transmitter to receiver design to determine range, or at least one transmitted reflecting signal off from an object to determine range. 1. A device for determining a distance travelled by a signal travelling from a signal transmitter and the device , comprising a receiver operable to receive the signal from the signal transmitter , the signal having at least one train of pulses , the train of pulses including a series of preamble pulses having a substantially constant pulse strength , and a series of body pulses , each body pulse having a pulse strength which varies across the series of body pulses according to a designated pulse strength profile , the receiver being operable to receive at least a subset of the series of the body pulses and to associate the received body pulses in the subset , whose pulse strength exceeds a designated pulse strength threshold value , with a value representative of the distance travelled , wherein the receiver is configured to become active when the designated pulse strength threshold value is exceeded by the pulse strength of a received body pulse in the subset , and to become inactive when the designated pulse strength threshold value is not exceeded by the pulse strength of a received body pulse in the subset.2. The device as defined in ...

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Номер записи: 99

25-04-2019 дата публикации

Facilitation of efficient signal source location employing a coarse algorithm and high-resolution computation

Номер: US20190120926A1

Автор: Jing Chang Huang, Wen Meng Xiong, Xiao Xing Liang, Yi Ge, Yu Chen Zhou, Yu Ling Zheng, Zhao Tai Pan

Принадлежит: International Business Machines Corp

Facilitation of determination of detailed location of a source signal is provided. In one embodiment, a device comprises a memory that stores computer executable components; and a processor that executes computer executable components stored in the memory. The computer executable components can comprise: a low-resolution computation logic component that implements a coarse algorithm and determines an approximate direction of arrival (DOA) of a source signal of an input signal, wherein the coarse algorithm uses both a coarse spatial grid and input data received from the input signal to determine the approximate DOA; and an error estimation logic component that estimates an estimation error of the coarse algorithm, and wherein the error estimation logic component uses the estimation error and the approximate DOA to determine a spatial interval range.

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Номер записи: 100

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