WCDMA stands for Wideband Code Division Multiple Access, which is a type of cellular technology developed as a third-generation (3G) mobile communications standard. It is based on the Code Division Multiple Access (CDMA) technologies developed in the 1980s, but it uses a wider frequency band and provides higher data rates than previous versions of CDMA. WCDMA was developed by the Third Generation Partnership Project (3GPP), a collaboration between several telecommunications standards organizations.
WCDMA is part of the Universal Mobile Telecommunications System (UMTS), which is the third-generation (3G) mobile telecommunications standard developed by the International Telecommunication Union (ITU). It is the evolution path for GSM and EDGE to UMTS and offers increased voice capacity and theoretical peak data speeds of up to 2 Mbps. WCDMA is also known as Universal Mobile Telecommunications System (UMTS) and is widely adopted as the dominant 3G technology in many parts of the world, including Europe, Asia, and North America.
WCDMA is a channel-access method that allows multiple transmitters to send both voice and data simultaneously over the same communication channel. It uses spread spectrum technology, which allows multiple users to share bandwidth with no interference. WCDMA networks are designed to integrate with GSM networks at certain levels, and most WCDMA phones include GSM as well, for backward compatibility.
WCDMA was deployed in the existing 1900 MHz (PCS) and 850 MHz (cellular) bands, as well as the newer 1700 MHz (AWS) band in North America. In Europe and Asia, WCDMA was first deployed in the all-new 2100 MHz frequency band.
In summary, WCDMA is a type of cellular technology that provides higher data rates than previous versions of CDMA. It is widely adopted as the dominant 3G technology in many parts of the world, including Europe, Asia, and North America. It uses spread spectrum technology and allows multiple transmitters to send both voice and data simultaneously over the same communication channel.
