The world is demanding more from wireless communication technologies than ever before. More people around the world are subscribing to wireless services and consumers are using their phones more frequently. Add in exciting Third-Generation (3G) wireless data services and applications - such as wireless email, web, digital picture taking/sending and assisted-GPS position location applications - and wireless networks are asked to do much more than just a few years ago. And these networks will be asked to do more tomorrow. This is where CDMA technology fits in. CDMA consistently provides better capacity for voice and data communications than other commercial mobile technologies, allowing more subscribers to connect at any given time, and it is the common platform on which 3G technologies are built. CDMA (Code Division Multiple Access) allows many users to occupy the same time and frequency allocations in a given band/space. As its name implies,

CDMA assigns unique codes to each communication to differentiate it from others in the same spectrum. In a world of finite spectrum resources, CDMA enables many more people to share the airwaves at the same time than do alternative technologies. The CDMA air interface is used in both 2G and 3G networks. 2G CDMA standards are branded CDMA and include IS-95A and IS-95B. CDMA is the foundation for 3G services: the two dominant IMT-2000 standards, CDMA2000 and WCDMA, are based on CDMA.


CDMA-1x: The Family of IS-95 CDMA-1x Technologies

CDMA2000-1x: Leads the 3G revolution