Patent ID: 8824396

Claim:
A method comprising: categorizing on a per-user basis a channel quality information received from a user in a multi-carrier transmission system; and individually selecting for said user one of a plurality of feedback overhead reduction techniques in response to a result of said categorizing; wherein a carrier restriction technique for restricting transmission to and from said user to a single component carrier is applied in response to said channel quality information exceeding a first threshold; wherein a feedback compression technique for compressing a channel quality feedback information for a plurality of component carriers allocated to said user is applied in response to said channel quality information not exceeding said first threshold but exceeding a second threshold; and wherein a feedback bundling technique for bundling a plurality of feedback signals used for acknowledging or non-acknowledging transmission into a single feedback signal over a plurality of component carriers allocated to said user is applied in response to said channel quality information not exceeding said first and second thresholds but exceeding a third threshold.