What is a typical soft handover gain in your link budget?

•          CS-12.2k:      3dB (UL), 2dB (DL)
•          PS-64k:         1dB (UL), 0dB (DL)
•          PS-128k:       1dB (UL), 0dB (DL)
•          PS-384k:       1dB (UL), 0dB (DL)

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How does Soft Handover Work?

WCDMA Soft Handover Procedure