Patent ID: 8411771
Filing Date: 2013-04-02
Classification: H04L

Abstract:
1. A method of selectively clipping waveforms prior to transmission in a multi-carrier wireless communication system, comprising: estimating peak values for signals to be transmitted over multiple carriers in the multi-carrier wireless communication system; determining a local threshold set comprising one local threshold for each carrier in the multi-carrier wireless communication system based on a configurable total threshold representing a maximum aggregate signal level for a sum of all signals to be transmitted over the multiple carriers in the multi-carrier wireless communication system; and clipping one signal to be transmitted over one carrier in the multi-carrier wireless communication system when the signal to be transmitted over the one carrier exceeds a corresponding local threshold and a sum of all signals to be transmitted over multiple carriers exceeds the total threshold; wherein estimating peak values, determining the local threshold set, and clipping one signal occur of carrier frequencies of the multiple carriers.