GPRS stands for General
Packet Radio Service. This is a new bearer service for GSM that
greatly improves and simplifies wireless access to packet data
networks. It applies a packet radio principle to transfer data packets
in an efficient way between mobile stations and external packet data
networks. GPRS enabled networks are “always on”, which means there is
no time delay in dialing up and establishing a connection to a data network.
About the Technology
GPRS introduced a packet based air
interface to the originally circuit-switched GSM network. This opened
up the mobile user to data services like the internet. By the basic
nature of packet-switched networks, multiple users can share a single
channel, which saves network resources as compared to circuit-switched
networks wherein a single channel is reserved for just a single user.
To provide data services to users GPRS
adds a few new components (SGSN, GGSN) to the GSM architecture. These
new components, basically have to do with providing connectivity to
data networks (e.g. the internet), routing this data traffic to the
end user and the necessary billing function.
As mentioned before, GPRS enabled users to avail of packet-based
data services. These include services like e-mail, chat, file
transfer, internet browsing, multimedia messaging and even location
based services like GPS.
For further reference, Please visit