This book explains the different types of mobile telephone systems and how they are the evolving from st generation analog, through nd generation digital to high speed rd generation digital broadband systems It describes the key components, how they operate and the different types of wireless voice, data and information services they can provide You will learn the terminology terms and acronyms for mobile telephone systems along with the key technologies Learn how speech compression voice coding operates and how it allowsthantimes as many users to share a single communication channel Discover the different types of system access technologies including FDMA, TDMA, CDMA and SDMA Explained are the basic types of modulation technologies and how they are evolving to increase the data transmission rates with less available bandwidth Find out why and how cellular systems are converting from dedicated circuit switched connections to high speed packet data systems The key parts of mobile communication systems are described including mobile equipment, radio access network RAN and the core network CN You will learn the basic operation of the base stations and how they may communicate with mobile switching systems MSC for voice communication or how they communicate with packet switching systems for data communication such as accessing the Internet You will learn about the different types of mobile devices including multi mode handsets, embedded communication devices, data only cards and adapter boxes Learn the key types of st generate analog cellular systems including AMPS, TACS, NMT, MCS, CNET and MATS E Discover how nd generation digital cellular increased the system efficiency to allow betweentotimes the number of customers to share each radio channel You will learn the basics about GSM, ISTDMA and CDMA systems Explained is the evolution of nd generation mobile systems into G systems that can offer medium speed data services approximatelykbps The systems covered include GPRS, EDGE, EVDO and EVDV The wideband rd generation systems WCDMA UMTS and CDMA are described along with how these systems can allowtousers to simultaneously share each radio channel and how they can offer many new types of services The types of services that mobile telephone systems can offer vary depending on the technologies, devices and system types Discover the key types of mobile services including circuit switched voice services, push to talk dispatch services, messaging, data services, location based services, multicast services Learn how the new mobile telephone systems can offer services with different quality levels of service Some of the most important topics featured are The Functional Parts of Mobile Systems Basic Speech Coding, Access Methods and Modulation Types Mobile Device Types Basic Mobile Network Operation AMPS, TACS, NMT, MCS, CNET and MATS E G Systems GSM, ISTDMA and CDMA G Systems GPRS, EDGE, EVDO and EVDV G Systems WCDMA UMTS and CDMA G Systems Basic G Requirements Voice, Dispatch, Data, Location, Multicast and Variable QoS Services