Wideband Code Division Multiple Access (WCDMA) is one of the main technologies for the implementation of third-generation (3G) cellular systems. It is based on radio access technique proposed by ETSI Alpha group and the specifications was finalised 1999. WCDMA is also known as UMTS and has been adopted as a standard by the ITU under [...]
WCDMA in GSM
Multiple Access Techniques is the emerging techniques for the next generation (3G) wireless communication systems. Multiple access techniques has been designed to add features such as multimedia capabilities, high data rates and multi-rate services to the existing wireless communication framework. The data rates proposed 2, 3 are 2Mbps indoor, 384 Kbps pedestrian, and 144 Kbps [...]
Transmission Timing in WCDMA terminals
Power control is one of the technologies used to utilize the radio resources as efficient as possible in WCDMA. The transmission power is adjusted to transmit with the lowest power level possible while the required received signal quality is maintained. Since there are large variation in channel quality over time, the power has to be [...]