Patent ID: 8396157
Filing Date: 2013-03-12
Classification: H04B

Abstract:
1. A method of determining a multiple-input multiple-output (MIMO) mode for a wireless communication system, the method comprising: analyzing, by a base station, input parameters affecting relative MIMO mode performance; determining, by the base station, a probability of each MIMO mode being a dominant MIMO mode, wherein MIMO modes comprise a transmit diversity mode, an open-loop spatial multiplexing mode, and a closed-loop spatial multiplexing mode, and wherein a dominant probability of the closed-loop spatial multiplexing mode is determined according to a formula parameterized by a rank of a MIMO channel, wherein: and where v is a user speed, c is the speed of light, f c is a carrier frequency; comparing, by the base station, the probability of each MIMO mode to determine a highest probability; and selecting, by the base station, the MIMO mode having the highest probability of being the dominant MIMO mode.