determination of the weiterreichens and cessation of power control in mobilkommunikationssystemen with frequenzspringen

摘要

A device (5) for triggering a handover or for adjusting transmit power levels in a cellular communications system distinguishes between the use of a frequency hopping or a non-frequency hopping channel and sets a different threshold value depending on which type of channel is being used. In one embodiment, handover trigger levels for hopping channels are based on frame erasure rate measurements rather than bit error rate measurements thereby avoiding unnecessary handovers and advantageously reducing signaling traffic.