Protocol Filtering Controlled Call Admission for CDMA2000 1x EV-DO

Abstract

Routing inconsistencies in all IP core can drastically affect the overall throughput of particular network. In cellular data communications, however, this issue proves to be rather more severe due to limited battery power of Mobile Station (MS) and higher average cost per data packet. Existence of persistent routing loop between PDSN/FA and Home Agent (HA) due to accidental or deliberate misconfiguration at HA results in repeated retransmission of packets of same ID across the network, consequently increasing the consumption of valuable bandwidth and average cost per data packet. We propose a Call Admission Policy for CDMA2000 1x EV-DO that blocks admission of new data calls associated to a misconflgured HA at the time of their admission to the network. Hence resulting in improved network throughput, less bandwidth and battery power consumption and improved average cost per data packet.