An encoding method in a mobile communication system, for receiving 4 input
information bits, encoding the 4 input information bits with different
Walsh codes of length 16, and outputting a coded symbol stream having 24
coded symbols using a coded symbol stream having 16 coded symbols
obtained by XORing the encoded input information bits by an XOR operator.
The encoding method comprises repeating the coded symbol stream having 16
coded symbols once, and thus outputting a coded symbol stream having 32
coded symbols; and puncturing 0.sup.th, 1.sup.st, 2.sup.nd, 3.sup.rd,
4.sup.th, 5.sup.th, 6.sup.th and 16.sup.th symbols from the 32 coded
symbols, and thus outputting the coded symbol stream having 24 coded
symbols.