Abstract: Rate matching is an important part in channel encoding and multiplexing of TD-SCDMA.Semi-static attribute is an important parameter in rate matching algorithm.This paper analyses convolutional coding rate matching principle for TD-SCDMA and completes the software simulation of convolutional rate matching algorithm.Simulation demonstrates that the realization of the program is feasible and semi-static attribute is to adjust the proportion of repeated or punctured data  for each TrCH.

Key words: TD-SCDMA, rate matching, semi-static attribute