Wednesday, June 8, 2011

What are the major differences between GSM and UMTS handover?


  • Time-based mobile measures of RxLev and RxQual – mobile sends measurement report every SACH period (480ms).
  • BSC instructs mobile to handover based on these reports.
UMTS:
  • Event-triggered reporting – UE sends a measurement report only on certain event “triggers”.
  • UE plays more part in the handover decision.

GSM:
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