US 2019/0199457 A1Published application

Radio-based channel sounding using phased array antennas

AssigneeAT&T Intellectual Property I, L.P.

InventorsAditya Chopra, Arunabha Ghosh, Saeed Ghassemzadeh, Salam Akoum, Xiaoyi Wang

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Abstract

An example device may include at least three phased array antennas controllable to provide respective receive beams steerable in azimuth and elevation, where faces of the phased array antennas are arranged to provide a receive beam coverage 360 degrees in azimuth, and at least three radio frequency front ends to receive channel sounding waveforms from a fifth generation base station of a cellular network via the respective receive beams and to generate baseband signals from the channel sounding waveforms. The device may include a processing system including at least one processor in communication with the radio frequency front ends to steer the respective receive beams via instructions to the radio frequency front ends, receive the baseband signals from the radio frequency front ends, determine a plurality of measurements of at least one wireless channel parameter based upon the baseband signals, and record locations and spatial orientation information for the measurements.

Claims20

Dependent claims

A device comprising:

at least three phased array antennas, wherein each of the at least three phased antenna arrays is controllable to provide a respective receive beam that is steerable in azimuth and elevation, wherein faces of the at least three phased array antennas are arranged to provide a receive beam coverage over 360 degrees in azimuth;
at least three radio frequency front ends coupled to the at least three phased antenna arrays to:
receive channel sounding waveforms from a fifth generation base station of a cellular network via the respective receive beams;
and
generate baseband signals from the channel sounding waveforms received from the fifth generation base station;
and
a processing system including at least one processor in communication with the at least three radio frequency front ends to:
steer the respective receive beams via instructions to the at least three radio frequency front ends;
receive the baseband signals from the at least three radio frequency front ends;
determine a plurality of measurements of at least one wireless channel parameter based upon the baseband signals;
and
record locations and spatial orientation information for the plurality of measurements of the at least one wireless channel parameter.

9 more elements

Dependencies are inferred from the claim text.