By June 8, 2011September 22nd, 2016Mobile Device Glossary

W-CDMA (Wideband Code Division Multiple Access), UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks. It is the basis of Japan’s NTT DoCoMo’s FOMA service and the most-commonly used member of the UMTS family and sometimes used as a synonym for UMTS. Radio channels are 5 MHz wide. Chip rate of 3.84 MHz.

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