Patent ID: 8670776
Filing Date: 2014-03-11
Classification: H04L,H04W

Abstract:
1. A base station for transmitting an orthogonal frequency division multiplexing (OFDM) signal, the base station comprising: a transmitting section configured to transmit information of a number to a mobile device, the information of the number corresponding to subcarrier blocks to be used for averaging channel quality, each of the subcarrier blocks including a plurality of subcarriers, wherein the information of the number does not indicate positions of subcarrier blocks to be selected; and a receiving section configured to receive a signal from the mobile device, the signal including a generated CQI and information indicating positions of selected subcarrier blocks selected by the mobile device, the generated CQI being a value representing an average channel quality across only the selected subcarrier blocks which are corresponding to the information of the number and are providing preferred channel quality, within a communication band used for transmission from the base station to the mobile device, wherein said number is less than the total number of subcarrier blocks within the communication band.