Patent ID: 8737342

Claim:
A method comprising: encoding a plurality of uplink feedback information elements {j=0, 1, . . . N−1} for carrier aggregation, by a set of codewords where each codeword comprises a channel selected from a number of M channels {i=0, 1, 2, . . . M−1} and a modulation symbol, wherein at least two of said plurality of uplink feedback information elements have a same channel distribution; wherein the channel distribution of uplink feedback information element j is defined as a set {n 0 j , n 1 j , . . . , n M-1 j }, wherein n is the number of codewords comprising channel i and corresponding to uplink feedback information element j at a certain state, wherein for said set of codewords the same channel distribution is defined as that the elements of {n 0 j ,n 1 j , . . . , n M-1 j } are the same for different uplink feedback information element j.