Method and apparatus for resource mapping and code division multiplexing

摘要

The present disclosure discloses a method and an apparatus for resource mapping and code division multiplexing. In the present disclosure, each cell selects a mapping scheme among at least two mapping schemes to implement resource mapping, which effectively reduces interference imposed on reference signal symbols of users at the edge of a cell; vector switching is performed for an orthogonal matrix to obtain multiple different codeword sequences and implement codeword design, so that a problem that the output power of reference signal symbols is unbalanced can be effectively alleviated.

主权项

1. A reference signal transmission method in a wireless telecommunication system, comprising:
for a plurality of codeword sequences and a plurality of reference signal sub-carriers in a resource block, determining a mapping relationship between each codeword sequence and a reference signal sub-carrier; multiplexing, on each of the reference signal sub-carriers, reference signal symbols of multiple space layers in the resource block according to the codeword sequence corresponding to the reference signal sub-carrier; and transmitting the multiplexed reference signal symbols of the space layers; wherein each codeword sequence comprises a codeword A, a codeword B, a codeword C and a codeword D, arranged in an arranging order, and arranging orders of the codeword A, the codeword B, the codeword C and the codeword D in the codeword sequences are different from each other.