Method for transmitting user data in a multi-carrier radio communication system, and corresponding receiver

An apparatus to facilitate communication of user data in a multi-carrier radio communication system having a plurality of orthogonal frequency sub-carriers, the apparatus comprising:

• means for selecting a set of sub-carriers from the plurality of sub-carriers on which user data is to be communicated from a transmitter to a receiver, said selecting based at least in part on at least one of sub-carrier quality levels and a threshold indication associated with sub-carriers, said quality levels communicated from the receiver to the transmitter and said threshold indication communicated from the transmitter to the receiver;
• said threshold indication and said quality levels enabling said receiver to deduce said set of sub-carriers on which said user data is to be communicated;
• and
• a radio link for communicating user data via the selected set of sub-carriers;
• wherein said receiver is adapted to receive user data from said transmitter via the radio link, said receiver comprising:
• means for selecting said set of sub-carriers on which said user data is to be received from said transmitter;
• means for determining quality levels for sub-carriers;
• means for sending said quality levels to said transmitter;
• and
• means for receiving and storing said threshold indication from said transmitter, said threshold indication and said quality levels enabling said receiver to deduce said set of sub-carriers on which said user data is to be received;
• wherein said set of sub-carriers on which said user data is to be received are deduced as a function of said threshold indication and said quality levels.

A method of facilitating communication of user data in a multi-carrier radio communication system having a plurality of orthogonal frequency sub-carriers, comprising:

• selecting a set of sub-carriers from the plurality of sub-carriers on which user data is to be communicated from a transmitter to a receiver, said selecting based at least in part on at least one of sub-carrier quality levels and a threshold indication associated with sub-carriers, said quality levels communicated from the receiver to the transmitter and said threshold indication communicated from the transmitter to the receiver, said threshold indication and said quality levels enabling said receiver to deduce said set of sub-carriers on which said user data is to be transmitted;
• selecting said set of sub-carriers on which said user data is to be received from said transmitter at said receiver;
• determining quality levels for sub-carriers at said receiver;
• sending said quality levels from said receiver to said transmitter;
• and
• receiving and storing said threshold indication from said transmitter at said receiver, said threshold indication and said quality levels enabling said receiver to deduce the set of sub-carriers on which said user data is to be received;
• wherein said set of sub-carriers on which said user data is to be received are deduced as a function of said threshold indication and said quality levels.