GSM-R and GPRS
GSM-R and GPRS
GSM-R and GPRS
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Packet Data Network Elements<br />
PCU<br />
Packet Control Unit<br />
> Responsible for the<br />
radio related aspects<br />
of <strong>GPRS</strong><br />
> Logically associated<br />
with a BSC<br />
SGSN<br />
Serving <strong>GPRS</strong> Support Node<br />
> Keeps track of the location<br />
of an individual MS<br />
> Performs security<br />
functions <strong>and</strong> access<br />
control.<br />
GGSN<br />
Gateway <strong>GPRS</strong> Support Node<br />
> Supports the edge routing<br />
function of the <strong>GPRS</strong> network.<br />
> Performs as IP router to<br />
external packet data networks.<br />
APPLICATION<br />
Packet data is optimized for sporadic-, burst-data allowing to<br />
leverage periods of low data volumes with other subscribers.<br />
Kapsch CarrierCom AG<br />
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