Difference between soft handoff and hard handoff ppt
Answers
1
Hard handoff: It means that all the old radio links in the MS are removed before the new radio links are established. In GSM, it is general. we can say Break before Make. so in this case higher rates of call drops is found.
Soft Handoff: It means the radio links are added and removed in a way that the MS always keeps at least one radio link to the UTRAN. In CDMA this technique is performed. In simple words we can say Make befor Break. To lower the rates of call drops, this technique is used.
Softer Handoff: It is a special case of soft handover where the radio links that are added and removed belong to the same site of co-located base stations from which several sector-cells are served i,e Node B.
But in a simpler way it can be said as below:
Hard Handover:- When mobile(in Call) switches to a new sector/Cell which is on different frequency , then it performs hard Handover. It is basically an inter-frequency handover.
SOft Handover:- When mobile ( in Call) switches to a new sector/cell which is on the same frequency then it is called a soft handover.
If the "new" sector is also from the same BTS then it is called a softer handover.
hope now it is clear to you.... :)