Dear all,
Here is very useful doc for GPRS. Contents:

Chapter 1 - Introduction to the GSM System
Chapter 2 - GPRS Services
Chapter 3 - Overview of GPRS
Chapter 4 - Radio Interface: Physical Layer
Chapter 5 - Radio Interface: RLC/MAC Layer
Chapter 6 - Gb Interface
Chapter 7 - Signaling Plane Chapter 8 - User Plane

Pls add reps

GPRS for Mobile Internet - Artech House.rar - 4shared.com - online file sharing and storage - download