The feature of very low throughput and high latency when a test mobile is moving compared with stationary scenario
is a vital defect of GPRS technique
although it introduced an advanced architecture for mobile packet service data providing. The core of the problem is that GPRS doesn’t meet the TCP’s requirement
it doesn’t specify an effect way to help data transport recovery after data pipe redirection
while it brings in data block lost frequently in GPRS network. This is analyzed from signalling procedure.