Copyright © tutorialspoint.com GPRS is a data network that
overlays a second-generation GSM network. This data overlay
network provides packet data transport at rates from 9.6 to 171
kbps. Additionally, multiple users can share the same air-
interface resources simultaneously. Following is the GPRS
Architecture diagram: GPRS attempts to reuse the existing GSM
network elements as much as possible, but to effectively build a
packet-based mobile cellular network, some new network elements,
interfaces, and protocols for handling packet traffic are
required. Therefore, GPRS requires modifications to numerous GSM
network elements as summarized below: |GSM Network
Element||Modification or Upgrade Required for GPRS.| |Mobile
Station (MS)||New Mobile Station is required to access GPRS
services. These new terminals will be backward compatible with
GSM for voice calls.| |BTS||A software upgrade is required in
the existing base transceiver site.| |BSC||The base station
controller (BSC) requires a software upgrade and the