GSM architecture

(i.e. inclusion if GGSN and SGSN). The UMTS architecture takes advantage of the existing GSM and GPRS networks which serve as a core network in UMTS infrastructure. The main difference between the UMTS and GSM come with the new radio interface called as Uu .

The main difference between GSM and GPRS is that GSM is used for the delivery of voice messages and data using the facility of digital modulation and works on the circuit-switched network whereas GPRS has provided higher network qualities and works on 2.5G technology with the packet-switch network.

Advertisements. GPRS architecture works on the same procedure like GSM network, but, has additional entities that allow packet data transmission . This data network overlaps a second-generation GSM network providing packet data transport at the rates from 9.6 to 171 kbps.