As one of three main technical standards for 3G

WCDMA has been widely accepted by industry. WCDMA is speeding up the transformation process from conception to industrialization and main manufacturers all over the world are tracking and developing network products based on WCDMA. This paper introduces WCDMA standard set which including 3GPP R99

3GPP R4

3GPP R5

3GPP R6 and 3GPP R7 in the order of evolvement

then describes the main features and new functions in detail respectively.