G01S13/762

Apparatus and method for representing user information received by an antenna apparatus with a directional characteristic

The invention relates to an apparatus for representing user information including an antenna apparatus, a processing apparatus and a representation apparatus. The antenna apparatus receives signals of a transmitter in a scene with at least one directional characteristic relating to spatially different receive sensitivities. Alternatively or additionally, the antenna apparatus sends signals with at least one directional characteristic into a scene and receives signals of a transmitter from the scene. The processing apparatus processes the received signals with respect to the scene and determines representation data represented by the representation apparatus. Further, the invention relates to a respective method.

Method for measuring antenna patterns of a secondary radar and secondary radar implementing such a method
11086006 · 2021-08-10 · ·

An each pattern is provided a reception pathway, the method uses the synchronous replies and the asynchronous replies, unsolicited of Fruit type, transmitted by targets present in the aerial environment of the radar and detected over a given number of antenna revolutions. At each detection of a reply the value of its off-aim in bearing and the value of relative power received on each of the pathways are calculated as is its elevation by extrapolation with the synchronous detections close to the same target and associated with the detection. The values obtained over the given number of revolutions are stored, the measured patterns being sampled on the basis of the stored values.

GEOLOCATION OF RADIO FREQUENCY DEVICES USING SPACEBORNE PHASED ARRAYS
20210250086 · 2021-08-12 ·

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.

RADIO FREQUENCY (RF) RANGING IN PROPAGATION LIMITED RF ENVIRONMENTS
20210231793 · 2021-07-29 ·

The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, utilizing transponders located on a property line. In particular, the embodiments described herein provide for determining a perpendicular distance to a property line from a ranging device. The transponders are located on the property line and a separated from each other by a known distance. The ranging device transmits RF signals to the transponders, which are received by the transponders and re-broadcasted back to the ranging device on a different frequency. The ranging device uses information about the transmitted and received RF signals and the known distance to calculate a perpendicular distance from the ranging device to the property line.

Wireless ranging using physical and virtual responders
11095319 · 2021-08-17 · ·

An electronic device configures two or more virtual responders associated with different subsets of capabilities of a physical responder in the electronic device, where the physical responder comprises a radio-frequency (RF) transceiver and multiple antennas, and where a given virtual responder corresponds to the RF transceiver and a given antenna. Then, the electronic device performs, based at least in part on wirelessly communication with a second electronic device and using at least the virtual responders, measurements on wireless signals from the second electronic device to the electronic device, where the measurements correspond to a time of flight of the wireless signals. Next, the electronic device determines, based at least in part on the measurements, a range between the electronic device and the second electronic device, where the determination uses the measurements from different virtual responders to correct for an environmental condition and/or increase an accuracy of the determined range.

AUTOMATIC RECEPTION WINDOW FOR GEO-LOCATING WLAN DEVICES
20210255308 · 2021-08-19 ·

A method for determining reception window timing using a measuring station receiving an antenna beam width, receiving an antenna tilt angle, receiving an altitude A, determining a far projection angle Δf, determining a near projection angle Δn, and determining a far projection range corresponding to the far projection angle Δf and based at least upon the values of Δf and A. The method further includes determining a near projection range corresponding to the near projection angle Δn and based at least upon the values of Δn and A, determining an end time of a reception window based at least upon the value of the far projection range the reception window being a window of time in which a response from the target station is expected to be received, and determining a start time of the reception window based at least upon the value of the near projection range

Method and device in UE, base station and service center

A method and device for a user equipment, a base station and a service center is disclosed; the UE transmits first information, then receives X1 first signals and transmits a first measurement report; first information is used to determine X1 first antenna port(s); first measurement report includes K1 piece(s) of measurement information, and each of K1 piece(s) of measurement information is for one of X1 first signals; measurement information is used to determine at least the first two of the corresponding set of time length, first antenna port, or first angle; By designing first information and first measurement report, feedback information of beam selection is used to determine generation and transmission of positioning reference signal under the condition of the base station and the UE supporting beamforming, utilizing beamforming has strong directional characteristics to improve the accuracy of UE positioning.

Method for measuring, in line operation, certain characteristics of the onboard transponder by using the secondary radar
11049403 · 2021-06-29 · ·

A test method in operational phase includes three distinct steps, a first step using the replies of the transponder to the interrogations in the Mode S transmitted in operational mode by the secondary radar to perform the measurement of the power of the transponder, and the measurement of the average rate of reply to the interrogations in Mode S transmitted by the radar intended for it; a second step which performs the measurement of the sensitivity of the transponder and a third step which carries out the test of its maximum rate of reply. The second step and the third step are carried out by modifying the operating parameters of the radar so that the additional interrogations required for the measurement can be performed, during the time interval following the last operational interrogation during which the aircraft remains located within the main Sum channel lobe of the antenna of the radar.

Method for checking the association of radio nodes with a radio environment by evaluating interference signal components
11051124 · 2021-06-29 · ·

A method for checking the association of radio nodes with a radio environment having a radio node set by evaluating interference signal components. At least two radio nodes of the radio node set operate as transceivers during a measurement process and at least one radio node operates exclusively as a transmitter or exclusively as a receiver or as a transceiver during the measurement process. The first evaluation step is performed at least once in a first pass for two reference radio nodes and is performed at least once in a second pass for a test radio node and a reference radio node. A positive or negative decision is made on the association with a radio environment on the basis of at least one result of the first pass and at least one result of the second pass.

TRANSMISSION CONTROL DEVICE, VEHICLE SYSTEM, TRANSMISSION CONTROL METHOD, AND CONTROL PROGRAM PRODUCT
20210263141 · 2021-08-26 ·

A transmission control device, which drives multiple antennas having different transmission ranges, includes: a genuine transmission control unit that transmits, from a genuine transmission antenna with use of a carrier wave, a genuine code for activating a portable device; and an inversion transmission control unit that transmits, from an inversion transmission antenna with use of a carrier wave, an inversion code including at least partial inverted genuine code concurrently with a transmission of the genuine code from the genuine transmission antenna. The inversion transmission antenna has a transmission range which does not overlap with a transmission range of the genuine transmission antenna.