US 2015/0092824 A1 · SYSTEMS AND METHODS FOR BEAMFORMING MEASUREMENTS

Abstract

Systems and methods are disclosed herein to provide communication test systems for the testing of multiple-input multiple-output (MIMO) radio frequency wireless data communication devices, systems and networks, including Multi-User MIMO (MU-MIMO) devices and systems. In accordance with one or more embodiments, a test system containing an integrated MIMO signal analyzer is disclosed that includes a protocol engine operative in conjunction with a waveform generator and waveform analyzer that analyzes the signal waveform of a device under test. Such a test system may offer improved capabilities such as a simpler and more flexible measurement of complex MIMO signal waveforms, more automated measurements of MIMO waveforms including beamforming functions, and more accurate measurement of the efficiency of MIMO related functions such as channel estimation, transmit precoding and beamforming.

Claims51

Dependent claims

A system for testing a wireless device under test (DUT), comprising:

a network equipment test device including at least one processor, said network equipment test device further including:
a channel modeling function for generating a predetermined modeled RF channel;
a precode matrix calculator function coupled to said channel modeling function and operative to derive feedback parameters from said modeled radio frequency (RF) channel;
and
a beamforming feedback function operatively coupled to said precode matrix calculator function for transmitting said feedback parameters to said DUT, wherein said feedback parameters are operative to cause said DUT to modify the signals transmitted to said test system in accordance with said modeled RF channel.

2 more elements

Dependencies are inferred from the claim text.

Systems and methods for beamforming measurements

Life of this patent

Systems and methods for beamforming measurements

Life of this patent

Abstract

Claims51