Patent ID: 8331869

Claim:
A method of testing a wireless device by simulating a multipath environment, comprising: placing a plurality of antennas at various angles around the wireless device within an anechoic chamber; connecting the plurality of antennas to a variable path simulator having N multiple separate paths and simultaneously introducing a different user-defined delay spread into each separate path connected to an antenna, where N is an integer greater than 1, wherein each separate path of the variable path simulator is coupled to a different one of the plurality of antennas, and the user-defined delay spreads being chosen to provide significant multi-path fading effects; connecting the N multiple separate paths of the variable path simulator to M spatial channels of a wireless communication tester emulating a wireless transceiver having the M spatial channels, where M is an integer greater than 1; and simultaneously receiving or transmitting by the plurality of antennas, a plurality of signals, each signal associated with a different one of the plurality of antennas, and wherein each signal propagates through a separate one of the multiple separate paths of the variable path simulator to simulate a desired pattern of multi-path fading effects.