Information about GPRS (General Packet Radio Service).

Information about GPRS

Introduction

GPRS protocol is a packet-switch protocol; define for web applications in GSM network.
In other words Internet on GSM network is standardized as GPRS network.
GPRS has digital structure and this structure based on Time Division Multiple Access (TDMA) technique.
One TDMA frame has 8 time slots (TSs).
These TSs can be allocated to users, and single TS can be shared by several active users for uplink and downlink purposes.
General Packet Radio Services (GPRS) is a packet-based wireless communication service that promises data rates from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users.

How Does GPRS Work?

In GSM cell phone systems, there will always be idle radio capacity.
This is the capacity of a network provider that is not being used and it stays unused until other cell phone users decide to make phone calls.
GPRS uses this idle radio capacity to establish a data network to be used for data transmission.
If a network provider's idle radio capacity decreases, which means a lot of phone calls are being serviced, data transmission and speed decreases as well.
Cell phone calls have a higher priority than Internet data transmission in cell phone network providers

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