Patent classifications
G01S5/04
WIRELESS POSITIONING SYSTEM
A wireless positioning system for detecting a positioning coordinate of a person comprises a wireless positioning device for sending a wireless broadcast signal comprising a device identity code and a motion vector; a plurality of wireless base stations for receiving the wireless broadcast signal and sending a positioning signal comprising a wireless broadcast signal and an RSSI; and a positioning server for receiving the positioning signal and calculating the positioning coordinates of the wireless positioning device according to the positioning signal. Wherein, when the received positioning signal is insufficient to calculate the positioning coordinates, the positioning coordinates are calculated based on the last positioning coordinate plus the motion vector. Compared with the prior art, the wireless positioning system of the present invention uses the RSSI to cooperate with the motion vector. The wireless positioning range is expanded with more accuracy.
WIRELESS POSITIONING SYSTEM
A wireless positioning system for detecting a positioning coordinate of a person comprises a wireless positioning device for sending a wireless broadcast signal comprising a device identity code and a motion vector; a plurality of wireless base stations for receiving the wireless broadcast signal and sending a positioning signal comprising a wireless broadcast signal and an RSSI; and a positioning server for receiving the positioning signal and calculating the positioning coordinates of the wireless positioning device according to the positioning signal. Wherein, when the received positioning signal is insufficient to calculate the positioning coordinates, the positioning coordinates are calculated based on the last positioning coordinate plus the motion vector. Compared with the prior art, the wireless positioning system of the present invention uses the RSSI to cooperate with the motion vector. The wireless positioning range is expanded with more accuracy.
Facilitating a location determination of a user equipment that is connected to a master radio based upon slave radio measurements
Embodiments relate to a deployment of a master radio in conjunction with one or more slave radios. The master radio coordinates with a UE, or transmitter, to transmit a particular known set of wireless signals in a defined time window over a dedicated wireless connection between the UE and the master radio. The master radio separately coordinates with the one or more slave radios to monitor for and measure the dedicated wireless connection during the defined time window (e.g., to obtain AoA measurements, signal strength measurements, etc.). The measurements can be reported to the master radio or a separate measurement processing unit to facilitate a location determination of the UE.
RFID reader
A radio frequency identification (RFID) reader includes an RFID module configured to generate a radio frequency (RF) signal, a power divider configured to divide the generated RF signal into a plurality of RF signals having a same power, at least one antenna configured to transmit the divided RF signals, and a sensor configured to detect an object within a predetermined area and transmit a result of the detection of the object to the RFID module.
RFID reader
A radio frequency identification (RFID) reader includes an RFID module configured to generate a radio frequency (RF) signal, a power divider configured to divide the generated RF signal into a plurality of RF signals having a same power, at least one antenna configured to transmit the divided RF signals, and a sensor configured to detect an object within a predetermined area and transmit a result of the detection of the object to the RFID module.
METHOD AND SYSTEM FOR INDOOR LOCALIZATION OF A MOBILE DEVICE
Localization of the mobile device uses a non-orthogonal multiple access (NOMA) scheme involving base stations, where localization is accomplished by sending a positioning request to the base stations, and receiving base station coordinate information and direction of arrival (DoA) information from the base stations. Distance information is computed based on the base station coordinate information. A location of the mobile device is determined based on the DoA information and the distance information.
METHOD FOR THE LOCATION OF A BEACON BY ANGLES OF ARRIVAL
A method for location of a beacon includes: executing R sequences, wherein R is a whole number equal to or greater than 2, each including reception by a first antenna network and a second antenna network of a signal originating from the beacon, wherein the signals of the R sequences are of different wavelengths; calculating a first estimation function for angles of arrival of the signal on the first antenna network and of a second estimation function for angles of arrival of the signal on the second antenna network; and executing a mutual correlation of the R first estimation functions and the R second estimation functions, for the respective determination of a first angle between the beacon and the first network, and of a second angle between the beacon and the second network.
METHOD FOR THE LOCATION OF A BEACON BY ANGLES OF ARRIVAL
A method for location of a beacon includes: executing R sequences, wherein R is a whole number equal to or greater than 2, each including reception by a first antenna network and a second antenna network of a signal originating from the beacon, wherein the signals of the R sequences are of different wavelengths; calculating a first estimation function for angles of arrival of the signal on the first antenna network and of a second estimation function for angles of arrival of the signal on the second antenna network; and executing a mutual correlation of the R first estimation functions and the R second estimation functions, for the respective determination of a first angle between the beacon and the first network, and of a second angle between the beacon and the second network.
Method and MIMO radar device for determining a position angle of an object
A method and a MIMO radar device are provided for determining a position angle of an object. The method includes the following steps: emitting a first radar signal with the aid of a first transmitting antenna having a first radiation pattern; emitting a second radar signal with the aid of a second transmitting antenna having a second radiation pattern; emitting a third radar signal with the aid of a third transmitting antenna having a third radiation pattern; the first, second, and third radar signal being emitted in various directions; receiving radar signals which are reflected on the object; and determining the position angle of the object based on phase differences and based on amplitude differences, which originate from the emission of the radar signals in the first through third directions, between the received reflected radar signals.
Method and MIMO radar device for determining a position angle of an object
A method and a MIMO radar device are provided for determining a position angle of an object. The method includes the following steps: emitting a first radar signal with the aid of a first transmitting antenna having a first radiation pattern; emitting a second radar signal with the aid of a second transmitting antenna having a second radiation pattern; emitting a third radar signal with the aid of a third transmitting antenna having a third radiation pattern; the first, second, and third radar signal being emitted in various directions; receiving radar signals which are reflected on the object; and determining the position angle of the object based on phase differences and based on amplitude differences, which originate from the emission of the radar signals in the first through third directions, between the received reflected radar signals.