Patent ID: 8514691

Claim:
A method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising: encoding said a number of feedback information messages by a set of codewords, where each feedback information message is be of at least a first kind or a second kind, and each codeword comprises a channel selected from a number of A channels and a modulation symbol selected from a number of S modulation symbols, wherein for a feedback information message there is at least a first codeword corresponding to information of the first kind and at least a second codeword corresponding to information of the second kind, for said feedback information message a modulation symbol of said first codeword and a modulation symbol of said second codeword have a maximum distance, and wherein the codewords comprise a same channel and a different modulation symbol, and wherein for said feedback information message at least one of the S modulation symbols is unused for any codeword comprising said same channel.