Patent ID: 8625403

Claim:
A code division multiplexing method in a wireless telecommunication system, wherein, the method comprises: determining mapping relations between multiple codeword sequences and multiple reference signal sub-carriers in a resource block; and multiplexing, on each of the reference signal sub-carriers in the resource block, reference signal symbols of each space layer according to the codeword sequence that is corresponding to the reference signal sub-carrier; wherein the multiple codeword sequences comprise codeword sequence W1, codeword sequence W2, codeword sequence W3 and codeword sequence W4; and W1=[A, B, C, D]; W2=[B, A, D, C]; W3=[C, D, A, B] or [C, D, B, A]; W4=[D, C, B, A] or [D, C, A, B]; wherein A, B, C and D are column vectors.