G01S5/0249

Techniques for Determining Geolocations
20220082707 · 2022-03-17 ·

The described geolocation techniques determine a location of an earth-based vehicle using a non-geostationary satellite. For instance, the non-geostationary satellite receives signals transmitted by the earth-based vehicle, determines the arrival times of the signals, and the position information of the satellite corresponding to the arrival times of the signals. The arrival times and position information of the satellite are sent to a signal processing unit to determine a location of the vehicle.

Associating a downlink reference signal for positioning of a user equipment with an uplink reference signal for transmission by the user equipment

In an embodiment, a network entity schedules, as part of a positioning procedure for a UE, a first set of resources for transmission of DL RS(s) by at least one BS to the UE. The network entity associates the DL RS(s) with UL RS(s) for transmission by the UE on a second set of resources to one or more BSs as part of the positioning procedure for the UE. The network entity transmits, to the UE, an indication of the association between the DL RS(s) and the UL RS(s). The UE receives the indication along with the DL RS(s) from the at least one BS. The UE transmits the UL RS(s) to the one or more BSs on the second set of resources in response to the received indication.

Information processing apparatus and non-transitory computer readable medium

An information processing apparatus includes: an acquisition unit configured to acquire pieces of information on position of the information processing apparatus; a receiving unit configured to receive radio waves from a search target apparatus; a calculation unit configured to calculate the position of the search target apparatus using the pieces of information on position of the information processing apparatus acquired at plural points by the acquisition unit and using a distance between the information processing apparatus and the search target apparatus estimated from an intensity of the radio waves received by the receiving unit at each of the plural points; and a notification unit configured to send notification to guide a searcher to the position of the search target apparatus calculated by the calculation unit.

System for localizing wireless transmitters with an autonomous mobile device

An autonomous mobile device (AMD) moves within a physical space. Various wireless devices with transmitters may be present, such as internet of things (IoT) devices, smartphones, tablets, user devices, and so forth. At different physical locations in the physical space a radio receiver of the AMD receives radio signals sent by transmitters sending data. Data is stored that is indicative of the physical location where the data was acquired, an identifier of the transmitter, and a received signal strength indication (RSSI). Estimated distances, each with respect to a different physical location, are determined based on the received signal strength. A plurality of the estimated distances and associated physical locations are used to determine an estimated location of a transmitter. For example, the estimated transmitter location may be determined as a point where the estimated distances coincide.

DYNAMIC BANDWIDTH CONFIGURATION FOR POSITIONING REFERENCE SIGNAL (PRS) OPERATION
20220069962 · 2022-03-03 ·

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.

SYSTEMS AND METHODS FOR TAG LOCALIZATION
20230393232 · 2023-12-07 ·

The disclosed embodiments include systems and methods for tag localization.

Techniques for determining geolocations

The described geolocation techniques determine a location of an earth-based vehicle using a non-geostationary satellite. For instance, the non-geostationary satellite receives signals transmitted by the earth-based vehicle, determines the arrival times of the signals, and the position information of the satellite corresponding to the arrival times of the signals. The arrival times and position information of the satellite are sent to a signal processing unit to determine a location of the vehicle.

Geolocation of radio frequency devices using spaceborne phased arrays

A communication system has a phased antenna array configured to communicate via a plurality of beams with a wireless device, such as user equipment (e.g., a smart phone). The plurality of beams define a field of view of the phased antenna array, the field of view having a plurality of cells and each of the plurality of beams is associated with one of the plurality of cells within the field of view. A processing device detects the wireless device within the field of view and determines a coarse geographic location of the wireless device within the field of view of the wireless device when the wireless device is within the field of view, or within a cell. The system further determines a fine geographic location for the wireless device based on frequency offset (due to Doppler) and signal flight time.

Determining motion information associated with a mobile device

A method, apparatus and computer readable storage medium are provided to determine motion information associated with a mobile device. A plurality of signal propagation time parameters are obtained or determined. Each signal propagation time parameter is associated with a respective observation position of the mobile device and a respective installation position a radio device. Each signal propagation time parameter is representative of a respective signal propagation time value of radio signal(s) traveling between the respective observation position and the respective installation position. For each of the installation positions of the radio devices, respective point coordinates are determined that represent the respective installation position of the respective radio device, at least partially based on the signal propagation time parameters. Motion information associated with the mobile device is determined at least partially based on the signal propagation time parameters and the point coordinates that have been determined.

Beacon detection system for locating missing persons
11145180 · 2021-10-12 · ·

A beacon detection system which can locate a missing search subject includes: a beacon signal receiver; a location position detector; and a beacon detector. The detector is configured to detect a location of a broadcasting beacon signal associated with a personal device of a search subject within search data covering a geographic search area derived from a search for the search subject, the search data gathered by the beacon signal receiver and location position detector. A computer implemented method of determining a location of a search subject is also provided. The method determines at least a possible connection request from Wi-Fi signals in search data gathered by a Wi-Fi radio covering a geographic search area for a search subject and associated location information to locate the search subject.