3G (IMT-2000) Question:
Tell me how does soft/softer handover work?
Answer:
★ Soft/softer handover down-link: UE rake receiver performs maximum ratio combining, i.e. UE combines multi-path signals and form a stronger signal.
★ Soft handover up-link: RNC performs selection combining, i.e. RNC selects the better signal coming from multiple NodeB.
★ Softer handover up-link: NodeB performs maximum ratio combining, i.e. NodeB rake receiver combines signals from different paths and forms a stronger signal
★ Soft handover up-link: RNC performs selection combining, i.e. RNC selects the better signal coming from multiple NodeB.
★ Softer handover up-link: NodeB performs maximum ratio combining, i.e. NodeB rake receiver combines signals from different paths and forms a stronger signal
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