General Packet Radio Service (GPRS) is a mobile data service available to users of GSM mobile phones. It is often described as "2.5G", that is, a technology between the second (2G) and third (3G) generations of mobile telephony. It provides moderate
Preface xv Acknowledgments xvii 1 Overview 1 1.1 History of Mobile Cellular Systems 1 1.1.1 First Generation 1 1.1.2 Second Generation 2 1.1.3 Generation 2.5 5 1.2 Overview of 3G 8 1.3 Proposals for 3G Standard 10 1.3.1 WCDMA 10 1.3.2 Advanced TDMA
