A system framework for third generation mobiles

Abstract

The Universal Mobile Telecommunications System (UMTS)is a concept for a third generation mobile telecommunications system fiom the RACE 1043 project. As well as support for a 'universal' high quality voice service, UMTS is targeted to support a wide range of services from paging, facsimile and data file transfer to 'high' bit rate services, including videotelephony and some Broadband-ISDN services. Following on from research work undertaken in the first three years of the project in specialised technical working groups, this paper presents work to combine the individual results and conclusions made towarak a UMTS 'system framework! Primarily the contribution concentrates on user requirements, the adaptivity requirements and resulting detail of the lower layers of the radio interface, and comiders some deployment issues with reference to an 'example town!