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What is Cell Level Security and FHHO Overview about?

This document discusses cell update and forward hard handover (FHHO) scenarios in 3G networks. It provides an overview of UE working modes including idle, connected, CELL_DCH, CELL_FACH, CELL_PCH, and URA_PCH. It then describes cell update and URA update functions during FHHO, including signaling flows. It notes some carriers are seeing increased PS call drop rates on FACH state and lists potential reasons like RB reconfiguration failures and state inconsistencies between UE and RAN. Solutions proposed incl

Author

sos987

Language

EN