GSM-R and GPRS
GSM-R and GPRS
GSM-R and GPRS
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<strong>GPRS</strong> versus Circuit Switched Data<br />
eMLPP compliant<br />
IP flow establishment time 0.5s (in <strong>GPRS</strong><br />
st<strong>and</strong>by mode)<br />
<strong>GPRS</strong> Circuit Switched Data<br />
�� ��<br />
3-5s<br />
“Bursty” applications i.e.<br />
timetable enquiry �� ��<br />
Radio coverage loss Data flow<br />
suspended<br />
Data flow interruption<br />
– new call must be<br />
established<br />
Number of users Up to 8 per timeslot 1 per timeslot<br />
C/I <strong>and</strong> sensitivity CS-1 slightly better<br />
than 9.6<br />
2.4 more robust than<br />
voice<br />
Kapsch CarrierCom AG<br />
|<br />
8
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