Patent ID: 8331466
Filing Date: 2012-12-11
Classification: H04L

Abstract:
1. A method for adaptively reducing a peak-to-average power ratio in a communication system, the method comprising: clipping energy from at least one peak of a modulated signal, the modulated signal including a plurality of sub-carriers; adaptively selecting at least one data sub-carrier for peak-to-average power ratio reduction use based on known scheduling information; and distributing the clipped energy among the at least one data sub-carrier by filtering the clipped energy using a filter having coefficients based at least in part on a re-growth control factor, wherein the re-growth control factor is used to scale the coefficients of the filter, wherein a value of the re-growth control factor is between 0 and 1, wherein the re-growth control factor is used to control re-growth of the at least one peak after said clipping and iteratively repeating the distribution based on the regrowth control factor.