CDMA (Code-Division Multiple Access) is a cellular technology being used in many parts of Asia, North America and South America. Nokia has supplied CDMA handsets since 1997.
CDMA (Code-Division Multiple Access) is a cellular technology being used in many parts of Asia, North America and South America. Nokia has supplied CDMA handsets since 1997.
CDMA is a “spread spectrum
” technology, which 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 people to share the airwaves at the same time. CDMA consistently provides good capacity for voice and data communications.
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The CDMA air interface is used in both 2G and 3G networks. 2G CDMA standards are generally called cdmaOne and include IS-95A and IS-95B, while cdma2000, including cdma2000 1X and cdma2000 1xEV technologies, is one of the dominant IMT-2000 3G standards. CDMA2000 1X can double the voice capacity of cdmaOne networks and delivers peak packet data speeds of 307 kbps in mobile environments. CDMA2000 1xEV includes 1xEV-DO and 1xEV-DV. CDMA2000 1xEV-DO delivers peak data speeds of 3.1 Mbps and supports applications such as MP3 transfers and video conferencing. CDMA2000 1xEV-DV provides integrated voice and simultaneous high-speed packet data multimedia services at speeds of up to 3.1 Mbps.
CDMA is one of the fastest growing wireless technologies. Nokia has a 13-year history of dedicated CDMA research and has a full line-up of CDMA products. Nokia’s expertise is not only in building CDMA handsets, but in developing the technology behind the handsets as well. Nokia has pioneered in the development of a range of next-generation CDMA technologies and has provided leading-edge innovation in our 5 generations of CDMA chipsets. Nokia continues to be recognized as a key driving force behind the CDMA standardization bodies and is in the forefront of of bringing open, interoperable technologies to CDMA.