Patent ID: 8995511
Filing Date: 2015-03-31
Classification: H04B,H04W

Abstract:
1. A system for emulating a wireless channel between a transmitter and a receiver, the wireless channel comprising one or more signal paths having respective amplitudes, angles of arrival and angle spreads, the system comprising: a set of two or more receive antennas, the set having an effective, non-singular spatial correlation for a given signal path in the wireless channel; a plurality of transmit antennas for transmitting transmit signals over the air to the set of receive antennas to emulate the given signal path in the wireless channel, the angle spread of the given signal path in the wireless channel represented as a plurality of N sub-paths, and the plurality of transmit antennas being less than N, and wherein the transmit antennas in the plurality are arranged at angular locations relative to the set of receive antennas in dependence upon said effective spatial correlation; and circuitry coupled to the plurality of transmit antennas to generate the transmit signals and provide the transmit signals to corresponding transmit antennas, wherein the transmit signals provided to the transmit antennas have a signal power in dependence upon said effective spatial correlation.