Patent ID: 8483300
Filing Date: 2013-07-09
Classification: H04L

Abstract:
1. A method for reducing Out of Band (OOB) radiation in Orthogonal Frequency Division Multiplexing (OFDM) system, the method comprises: transmitting a plurality of signals with a plurality of modulated symbols on each subcarrier; introducing a controlled amount of correlation among the plurality of modulated symbols on each subcarrier across time based on at least one correlation pattern, wherein the at least one correlation pattern comprises a plurality of convolution coders, and wherein the plurality of convolution coders comprises (1+D, 1-2D+D reducing an out of band radiation in OFDM; removing the controlled amount of correlation among the plurality of modulated symbols on each subcarrier; and detecting the plurality of modulated symbols, wherein the at least one correlation pattern is selected based on a plurality of Out of bandwidth (OOB) levels of the plurality of modulated symbols on each subcarrier.