An interoperable PACS and DCS1900 subscriber unit radio architecture

This paper presents a basic framework for the consideration of an integrated PACS and DCS1900 handset architecture. The DCS1900 is a GSM based high-tier system intended for use in the 1.9 GHz frequency allocation which can provide vehicular wireless service over very large areas. PACS is a low-tier system that can provide widespread pedestrian urban service with cost and quality that approach wireline. Similarities between both systems are highlighted for the purpose of offering both low and high-tier sets of features in a combined handset architecture. Mainly, lower layer RF issues are studied, but, channel coding, and voice coding issues are also considered. Market driven issues such as cost and user segments are also discussed. An estimate of the interoperable handset cost impact is also provided