GPRS and Edge(RSD培训)

GPRS and Edge(RSD培训)General Packet Radio Services

GPRS

Radio Interface + Measurements
Reiner Stuhlfauth, 1MAT 1

Structure of presentation
Structure of presentation GPRS - Radio Interface EDGE: 8 PSK -Modulation and MCS Measurements with CMU 200

Reiner Stuhlfauth, 1MAT

2

Technology Overview
EDGE circuit switched

circuit switched

GSM
circuit switched

HSCSD GPRS
packet switched

ECSD EGPRS classic
EDGE packet switched

EGPRS

GPRS = Extension of GSM
ECSD = Enhanced Circuit Switched Data = Extension of GSM/HSCSD EGPRS = Enhanced GPRS = Extension of GPRS

Reiner Stuhlfauth, 1MAT

3

Technologies: Characteristics

Technology GSM HSCSD GPRS ECSD EGPRS

Mode of Data Transfer Circuit Switched Circuit Switched Packet Switched Circuit Switched Packet Switched

Modulation GMSK GMSK GMSK GMSK + 8PSK GMSK + 8PS