WCDMA air interface and Parameter
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WCDMA is dominant technology for 3G cellular systems.It is a new radio interface standard.

It is only the air interface used with UMTS mobile communication standard,Which allows communication between the base station and mobile station.

It has been designed to allow handoff to GSM systems.

WCDMA employs variable or selectable direct sequence spread spectrum chip rates that can exceed 16 Mcps per user.

WCDMA Parameters:

1) Channel Bandwidth : 5MHz

2) Forward RF Channel structure : DSSS

3) Chip rate : 3.84 Mcps

4) Coherent Detection : Pilots Symbols

5) Frame length : 10 ms

6) number of slots frame : 15

7) Handover : Soft handover

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