Patent ID: 8971823
Filing Date: 2015-03-03
Classification: H04B,H04L

Abstract:
1. A wireless communication apparatus, comprising: a processor configured to decode signals that are received over two or more subcarriers of a segment of subcarriers, which is one of a plurality of segments of subcarriers available for communication, and to provide precoding information for at least one segment of the plurality of segments based on the received signal, wherein the precoding information is applied to at least one symbol of at least one data stream based upon at least one channel response information of a user and wherein the at least one segment is a subband which comprises a predetermined bandwidth; and a transmitter configured to transmit an index indicative of the precoding information, wherein each segment of subcarriers of the plurality of segments of subcarriers has its own feedback channel, and wherein the transmitter is configured to feedback to a receiver the index indicative of the precoding information for each of the at least one segment on the segment's own feedback channel.