A method of generating a bit sequence for transmitting an uplink signal by a mobile terminal in a wireless communication system, the method comprising: encoding an information bit sequence using a (32, O) block code for a (32, O) code with O = 1, 2,...12, wherein codewords of the (32, O) block code are a linear combination of 12 basis sequences; and generating the bit sequence for a (48, O) code by circularly repeating the encoded information bit sequence with an offset starting value, wherein the circularly repeating is performed according to the following formula: q i = b i + offset mod B where i = 0, 1, 2,..., Q-1 with Q = 48, wherein q is the bit sequence, b is the encoded information bit sequence, B is 32 and 'offset' is the offset starting value; wherein: - the offset starting value is 18, and the 12 basis sequences denoted Mi,n, wherein n = 0,1,2,...,11, are: I M i,0 M i,1 M i,2 M i,3 M i,4 M i,5 M i,6 M i,7 M i,8 M i,9 M i,10 M i, 11 0 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 2 1 0 0 1 0 0 1 0 1 1 1 1 3 1 0 1 1 0 0 0 0 1 0 1 1 4 1 1 1 1 0 0 0 1 0 0 1 1 5 1 1 0 0 1 0 1 1 1 0 1 1 6 1 0 1 0 1 0 1 0 1 1 1 1 7 1 0 0 1 1 0 0 1 1 0 1 1 8 1 1 0 1 1 0 0 1 0 1 1 1 9 1 0 1 1 1 0 1 0 0 1 1 1 10 1 0 1 0 0 1 1 1 0 1 1 1 11 1 1 1 0 0 1 1 0 1 0 1 1 12 1 0 0 1 0 1 0 1 1 1 1 1 13 1 1 0 1 0 1 0 1 0 1 1 1 14 1 0 0 0 1 1 0 1 0 0 1 0 15 1 1 0 0 1 1 1 1 0 1 1 0 16 1 1 1 0 1 1 1 0 0 1 0 1 17 1 0 0 1 1 1 0 0 1 0 0 1 18 1 1 0 1 1 1 1 1 0 0 0 0 19 1 0 0 0 0 1 1 0 0 0 0 0 20 1 0 1 0 0 0 1 0 0 0 1 0 21 1 1 0 1 0 0 0 0 0 1 1 1 22 1 0 0 0 1 0 0 1 1 0 1 0 23 1 1 1 0 1 0 0 0 1 1 1 1 24 1 1 1 1 1 0 1 1 1 1 0 0 25 1 1 0 0 0 1 1 1 0 0 1 1 26 1 0 1 1 0 1 0 0 1 1 0 0 27 1 1 1 1 0 1 0 1 1 1 0 1 28 1 0 1 0 1 1 1 0 1 0 0 1 29 1 0 1 1 1 1 1 1 1 0 0 1 30 1 1 1 1 1 1 1 1 1 1 1 0 31 1 0 0 0 0 0 0 0 0 0 0 0 encoding an information bit sequence using a (32, O) block code for a (32, O) code with O = 1, 2,...12, wherein codewords of the (32, O) block code are a linear combination of 12 basis sequences; and generating the bit sequence for a (48, O) code by circularly repeating the encoded information bit sequence with an offset starting value, wherein the circularly repeating is performed according to the following formula: q i = b i + offset mod B where i = 0, 1, 2,..., Q-1 with Q = 48, wherein q is the bit sequence, b is the encoded information bit sequence, B is 32 and 'offset' is the offset starting value; wherein: - the offset starting value is 18, and the 12 basis sequences denoted Mi,n, wherein n = 0,1,2,...,11, are: I M i,0 M i,1 M i,2 M i,3 M i,4 M i,5 M i,6 M i,7 M i,8 M i,9 M i,10 M i, 11 0 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 2 1 0 0 1 0 0 1 0 1 1 1 1 3 1 0 1 1 0 0 0 0 1 0 1 1 4 1 1 1 1 0 0 0 1 0 0 1 1 5 1 1 0 0 1 0 1 1 1 0 1 1 6 1 0 1 0 1 0 1 0 1 1 1 1 7 1 0 0 1 1 0 0 1 1 0 1 1 8 1 1 0 1 1 0 0 1 0 1 1 1 9 1 0 1 1 1 0 1 0 0 1 1 1 10 1 0 1 0 0 1 1 1 0 1 1 1 11 1 1 1 0 0 1 1 0 1 0 1 1 12 1 0 0 1 0 1 0 1 1 1 1 1 13 1 1 0 1 0 1 0 1 0 1 1 1 14 1 0 0 0 1 1 0 1 0 0 1 0 15 1 1 0 0 1 1 1 1 0 1 1 0 16 1 1 1 0 1 1 1 0 0 1 0 1 17 1 0 0 1 1 1 0 0 1 0 0 1 18 1 1 0 1 1 1 1 1 0 0 0 0 19 1 0 0 0 0 1 1 0 0 0 0 0 20 1 0 1 0 0 0 1 0 0 0 1 0 21 1 1 0 1 0 0 0 0 0 1 1 1 22 1 0 0 0 1 0 0 1 1 0 1 0 23 1 1 1 0 1 0 0 0 1 1 1 1 24 1 1 1 1 1 0 1 1 1 1 0 0 25 1 1 0 0 0 1 1 1 0 0 1 1 26 1 0 1 1 0 1 0 0 1 1 0 0 27 1 1 1 1 0 1 0 1 1 1 0 1 28 1 0 1 0 1 1 1 0 1 0 0 1 29 1 0 1 1 1 1 1 1 1 0 0 1 30 1 1 1 1 1 1 1 1 1 1 1 0 31 1 0 0 0 0 0 0 0 0 0 0 0 - the offset starting value is 18, and