This innovative new book explains how GPRS (general packet radio service) allows you to expand your GSM networks towards third generation mobile communications to meet the demands of the most-sophisticated mobile data applications. The book concentrates on the interfaces between the known GSM network elements and the new subsystems -- PCU, SGSN, and GGSN -- that come with GPRS. It offers you an in-depth explanation of the extensions and methods of the GSM air interface necessary for GPRS and shows how the channel-oriented GSM is linked to the packet switched GPRS. Moreover, it explains what extensions there are in channel coding, how resources are allocated on the air interface, and how the quick network access necessary for GPRS is made possible.
The book focuses on the specifics and procedures of the
air-interface, while giving you a thorough understanding of IP related
protocols and a detailed presentation of all the important protocol scenarios
that you may encounter in GPRS and HSCSD. Other discussions include an
introduction to GSM and TDMA, data transmission protocols, and terrestrial
interfaces. An extensive glossary provides answers to many of the technical
questions that may arise while utilizing GPRS, HSCSD, EDGE or IS-136 HS
technology. Packed with more than 200 illustrations that support key topics.
An Introduction to GSM and TDMA - TDMA and Cellular Mobile
Communications. The Network Topography of GSM. The Air-Interface in GSM,
Physical/Logical Channels. Circuit-Switched Data Services in GSM.
Data Transmission Protocols - The OSI Reference Model.
Introduction to PPP, IP, TCP and UDP. Differences Between IPv4 and Ipv6.
Applications of TCP/IP: FTP, SMTP, SNMP and HTTP. Introduction to Frame Delay.
An Introduction to GRPS - Performance, Features and
Services of GPRS. The GPRS Architecture (MS-Classes/PCU/SGSN//GGSN/BG). Tasks
and Specifics of PCU, SGSN, GGSN and BG. Specific Issues of a Mobile Packet
Data Network. GPRS Mobility Management.
The Air-Interface in GPRS - The 52-Multiframe/The Packet
Data Channels. Medium Access Control (MAC) and Radio Link Control (RLC).
Channel Coding Options in GPRS (CS-1 - CS-4). Mobile Station: Specific Issues
of Multi-Slot Transmission. QoS (Quality of Service) in GPRS
The Terrestrial Interfaces in GPRS - The LLC- and
SNDCP-Protocol (Logical Link Control and Sub-Network Dependent Convergence
Protocol). The GTP-Protocol (GPRS Tunneling). GPRS within the BSS – The BSSGP
(Base Station GPRS Protocol).
Alternatives to GPRS: Introduction to HSCSD and EDGE - An
Introduction to HSCSD. The Radio Link Protocol (RLP) in HSCSD. Performance and
Features of HSCSD. An Introduction to EDGE and 8PSK.
Protocol Scenarios in GPRS and HSCSD - GPRS-Attach Initiated
on CCCH. GPRS-Attach Initiated on PCCCH. GPRS-Detach (Mobile Initiated). GPRS
(Network Initiated). Routing Area Update (Inter-SGSN). PDP-Context Activation
(Mobile Initiated). PDP-Context Activation (Network Initiated). Mobile
Originated Packet Transfer (One-Phase Access). Mobile Originated Packet Transfer
(Two-Phase Access). Mobile Terminated Packet Transfer. HSCSD: Mobile Originated
Call Setup, Mobile Terminated Call Setup, Service Level Up-/Down-Grading
(Network Initiated), Service Level Up-/Down-Grading (Mobile Initiated),
Multislot Handover Scenario (Intra-BSC), Multislot Handover Scenario
Gunnar Heine is the CEO of Inacon and previously served as
director of technical services for ALCATEL Mobile Communications. He is the
author of GSM Networks: Protocols,
Terminology and Implementation (Artech, 1999). Mr. Heine holds an M.S.
in communications technology from the University of Wilhelmshaven in Germany.
Holger Sagkob is a development engineer in the radio
communications division of Alcatel Mobile Communications. He holds a Diplom-Ingenieur
(FH) degree from Fachhochschule Wilhelmshaven.