Patent ID: 8891657
Filing Date: 2014-11-18
Classification: H04B,H04W

Abstract:
1. A method of improving throughput conditions in a wireless communication network for a wireless multiple-input, multiple-output (MIMO) channel between a MIMO transmitter comprising an antenna array having a plurality of antennas and a MIMO receiver, the method comprising: determining that multiplicative noise limits the throughput conditions, said multiplicative noise comprising any noise dependent on or proportional to a signal strength at at least one of the MIMO transmitter and the MIMO receiver; and distributing a transmission power across one or more data streams communicated between the MIMO transmitter and the MIMO receiver based on knowledge at the transmitter of the MIMO channel, wherein the transmission power allocated to one or more of the data streams associated with a dominant signal path is decreased relative to the transmission power allocated to one or more of the data streams associated with a weaker signal path to increase at least one of a quality and a throughput condition of the MIMO channel.