Patent ID: 9281879
Filing Date: 2016-03-08
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method for controlling power spectral density (PSD) of a multiple-input-multiple-output (MIMO) transmitter, the method comprising: receiving, with precoding circuitry, data corresponding to multiple transmission streams of the MIMO transmitter from a constellation encoder; precoding the received data using the precoding circuitry; sending the precoded data to a plurality of transmission ports of the MIMO transmitter; and adjusting power allocation of the precoded data for a first of the plurality of transmission ports independently of adjusting power allocation of the precoded data for a second of the plurality of transmission ports, wherein adjusting power allocation of the precoded data comprises modifying a first power value stored in a memory associated with first power allocation circuitry of the first transmission port and modifying a second power value stored in a memory associated with second power allocation circuitry of the second transmission port.