CDMA for cellular and PCS

The Telecommunications Industry Association (TIA) published the North American cellular air interface standard for CDMA cellular communications, IS-95, in 1993. The Joint Technical Committee (JTC) on Wireless Access, formed between TIA committee TR46 and the Alliance for Telecommunication Solution (ATIS) committee T1, is drafting an IS-95 based standard for Personal Communications Systems (PCS). The IS-95 standard supports data rates up to 9600 bps; the PCS standard under development supports rates to 14400 bps. Extensions to the PCS standard which will support rates up to 76.8 kbps have been proposed. This paper describes the history of CDMA development, various CDMA cellular standards, the PCS standards under development, and the extended PCS system.<<ETX>>