Patent ID: 6822947
Filing Date: 2004-11-23
Classification: H04L,H04W

Abstract:
A radio network emulator for use at a router node of a packet core network, comprising:a frame erasure rate generator responsive to user input specifying a condition of a fictional radio network component of the packet core network to be emulated and operable to generate from the specified condition a frame erasure rate value indicative of how frequently packet data units (PDUs) transmitted over the emulated radio network component are likely to be received with an uncorrectable error; and a time delay generator that receives the frame erasure rate value, maps that value to a time delay value and applies a corresponding time delay against router node handling of IP datagrams transmitted through the packet core network, wherein the time delay is representative of a likely delay that would be experienced in the transmission of those IP datagrams as PDUs over the emulated radio network component due to the effect of PDU erasures and retransmissions indicated by the frame erasure value.