CPC Class H04W

Apparatus and methods for radio frequency emissions testing based on harmonic beamforming are provided herein. In certain configurations, a method of emissions testing of cellular communication assemblies for emissions compliance is provided. The method includes transmitting a signal beam using an antenna array of a respective cellular communication assembly after manufacture thereof, the signal beam including a fundamental lobe and one or more harmonic lobes. The method further includes determining one or more testing locations of the signal beam based on detecting a direction of the fundamental lobe using test equipment, the testing locations corresponding to locations associated with the harmonic lobes. The method further includes evaluating a level of harmonic emissions at each of the one or more testing locations using the test equipment to establish whether or not the respective cellular communication assembly complies with emissions testing.

Provided are a system and a method for determining an angle. The method includes: determining differences between signal strengths of incident waves received by a first directional antenna of an anchor node from a tested node and signal strengths of incident waves received by a second directional antenna of the anchor node from the tested node at multiple angles, wherein the first directional antenna and the second directional antenna are mounted at a same point, and an area formed by the first directional antenna is partially superposed with an area formed by the second directional antenna; and taking an angle corresponding to a minimum difference in the differences as an angle between a line connecting the anchor node and the tested node and a horizontal reference line. The present technical solution achieves the technical effect of positioning a target accurately when the positioning device is low in complexity.

A user terminal measures a location thereof. In a method for measuring a terminal location, the terminal measures received signal strength indicator (RSSI) values of signals received from a plurality of electronic devices deployed in a space. Then the terminal extracts a preliminary location of the terminal with respect to each of a plurality of predetermined algorithms by applying the plurality of algorithms to the measured RSSI values, identifies a first estimated location of the terminal by applying a predetermined weight to each preliminary location, identifies a second estimated location of the terminal using an output of at least one sensor, and determines a final location of the terminal, based on the first and second estimated locations.

A wireless telecommunications system that employs a distributed-antenna system is described in which different combinations of radio signals are assigned to antennas so as to facilitate locating a wireless terminal based on the identity of the radio signals it receives above a threshold signal strength.

In at least one embodiment, a vehicle system comprising a vehicle communication module is provided. The vehicle communication module is configured to receive first global positioning system (GPS) data indicative of a location of a vehicle and to receive a first signal indicative of the vehicle being in a drive state. The vehicle communication module is further configured to transmit the first GPS data to an occupant communication device (OCD) in response to the first signal to restrict at least a portion of the operation of the OCD and to reduce power consumption of the OCD.