Beyond iPhones: EDGE, GPRS, and (Web GPS)

EDGE, GPRS, and 3G

Dr. Tiwana

Tiwana

EDGE, EGPRS, and other wireless networks 2.5G and 3G

Agenda2

Tiwana

Main Two-Way Wireless Technologies3

Tiwana

GPRS and EDGE4

Technology  Download

(kbit/s)  Upload (kbit/s) 

GPRS 80.0 20.0

GPRS 60.0 40.0

EGPRS (EDGE) 236.8 59.2

EGPRS (EDGE) 177.6 118.4

Tiwana

packet oriented mobile data service Global System for Mobile Communications (GSM) phones data rates from 56 up to 114 kbit/s GPRS is a best-effort packet switched service

not circuit switched, where a certain QoS is guaranteed

General Packet Radio Service (GPRS)5

Tiwana

extension on top of standard GSM technically considered a 3G radio technology (“2.5G”) three-fold increase in capacity of GSM/GPRS networks higher data-rates by switching to more sophisticated coding can be used for any packet switched application

Enhanced Data rates for Global Evolution (EDGE)

6

Tiwana

Services include wide-area wireless voice telephony, video calls, and broadband wireless data

14.4Mbit/s downlink and 5.8Mbit/s uplink ITU does not clearly specify minimum or average speeds various speeds sold under 3G label

3G expected to provide 384 kbit/s at or below pedestrian speeds But only 128 kbit/s in a moving car

3G7

Tiwana

Wireless Spectrum Efficiency Increase

You’re

here

Million times faster?

Tiwana

How Cheap Does Wireless Ubiquity Get?

Tiwana

Quiz Review