Patent ID: 8873533
Filing Date: 2014-10-28
Classification: H04L

Abstract:
1. A method of transmitting signals using a multi-antenna transmitter, the method comprising: generating a first group of output signals by performing a first set of one or more operations on a plurality of input signals, wherein the first set of operations do not increase a peak-to-average-power-ratio (PAPR) associated with the input signals; generating a second set of output signals by performing a second set of one or more operations on the plurality of input signals, wherein the second set of operations increase a PAPR associated with the input signals; amplifying the first group of output signals using a first group of power amplifiers (PAs); transmitting the amplified first group of output signals over a first group of antenna ports associated with the first group of PAs; amplifying the second group of output signals using a second group of PAs, wherein the second group of PAs have a greater amplifying power than the first group of PAs; transmitting the amplified second group of output signals over a second group of antenna ports associated with the second group of Pas; and precoding the input signals using a precoding matrix having a size equal to a number of antennas that will be used to transmit the input signals times a number of streams to be transmitted in parallel in transmitting the input signals, wherein