Method and apparatus for transmission within a multi-carrier communication system

Abstract

A method and apparatus are provided for indicating to a communication unit a plurality of modulation and coding schemes (MCSs) to be utilized for communication. During a first MCS is determined for first resource blocks to be sent to a first remote unit or base station, and a second MCS is determined for a second resource block to be sent to the remote unit or base station. A message is transmitted indicating the first and the second MCS and also indicating the first resource blocks and the second resource block. Finally, a first PDU is transmitted to the remote unit or base station at a first time using the first MCS and the first resource blocks and a second PDU is transmitted to the remote unit or base station at the first time using the second MCS and the second resource block.

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         12 . A method comprising the steps of:
 determining a first quality index for first resource blocks;   determining a relative quality index for at least a second resource block, wherein the relative quality index is based on a quality of the at least second resource block relative to a quality of the first resource blocks;   transmitting a message indicating the first quality index and the relative quality index, wherein the message causes a receiver to determine a first modulation and coding scheme for the first resource blocks and a second modulation and coding scheme for the at least second resource block.   
     
     
         13 . The method of  claim 12  wherein a number of bits used to represent the first quality index differs from a number of bits used to represent the relative quality index. 
     
     
         14 . The method of  claim 12  wherein each resource block from the first resource blocks comprise a first plurality of subcarriers and the second resource block comprises a second plurality of subcarriers. 
     
     
         15 . The method of  claim 12  wherein the first quality value/index is based on at least one of SNR, effective SNR, SINR, effective SINR, mutual information, MCS, or data rate. 
     
     
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         18 . An apparatus comprising:
 logic circuitry performing the steps of:
 determining a first quality index for first resource blocks; 
 determining a relative quality index for at least a second resource block, wherein the relative quality index is based on a quality of the at least second resource block relative to a quality of the first resource blocks; and 
   a transmitter transmitting a message indicating the first quality index and the relative quality index, wherein the message causes a receiver to determine a first modulation and coding scheme for the first resource blocks and a second modulation/coding scheme for the at least second resource block.   
     
     
         19 . The apparatus of  claim 18  wherein each resource block from the first resource blocks comprises a first plurality of subcarriers and the second resource block comprises a second plurality of subcarriers. 
     
     
         20 . The apparatus of  claim 18  wherein the first quality index is based on at least one of SNR, effective SNR, SINR, effective SINR, mutual information, MCS, or data rate.