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Apparatus and method for feeding back channel quality information and scheduling apparatus and method using the same in a wireless communication system

  • US 9,467,268 B2
  • Filed: 09/25/2013
  • Issued: 10/11/2016
  • Est. Priority Date: 08/29/2005
  • Status: Active Grant
First Claim
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1. A method for feeding back channel quality information (CQI), at a mobile station, in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the method comprising:

  • calculating, at the mobile station, a wideband CQI for an entire band, the entire band including at least two sub-bands;

    calculating, at the mobile station, at least one sub-band CQI for the at least one sub-band;

    transmitting, at the mobile station, the at least one sub-band CQI for the at least one sub-band at a transmission time interval for a sub-band CQI transmission; and

    transmitting, at the mobile station, the wideband CQI at a transmission time interval for a wideband CQI,wherein the transmission time interval for a wideband CQI is set based on N times of number of the transmission time interval for a sub-band CQI transmission, andwherein N is an integer greater than 1.

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