GSM Development:
a. GPRS and EDGE has introduced packet
data and support for higher data rates into GSM.
b. UMTS is a 3G technology building on
GSM core network, which is “backwards compatible” with GSM.
-GSM-UMTS handover
supported.
-Almost all UMTS
terminals are also GSM terminals.
c. HSDPA / HSUPA (High Speed Downlink/Uplink
Packet Access) supports real mobile broadband.
2nd Generation:
-GSM data
rate: 9.6 Kbps
2.5 Generation:
-HSCSD (High
Speed ckt Switched data) data rate: 76.8 Kbps (9.6 x 8 kbps)
-GPRS
(General Packet Radio service) data rate: 14.4 - 115.2 Kbps
-EDGE
(Enhanced data rate for GSM Evolution) data rate: 547.2 Kbps (max)
3 Generation:
-WCDMA (Wide
band CDMA) data rate: 0.348 – 2.0 Mbps
Post a Comment