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soft hanover and softer handover
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  Soft and softer handover

 

With soft handover functionality the handset can communicate simultaneously with two or more cells in two or more base stations. This flexibility in keeping the connection open to more than one base station results in fewer lost calls, which is very important to the operator. To achieve good system performance with a frequency

Figure 3.6

re-use of 1 and power control, soft and softer handover is required. Soft and softer handover enables

the handset to maintain the continuity and quality of the connection while moving from one cell to another.During soft or softer handover, the handset will momentarily adjust its power to the base station that requires the smallest amount of transmit power and the preferred cell may change very rapidly.The difference between soft and softer handover is that during soft handover, the handset is connected to multiple cells at different base stations, while during softer handover, the handset is connected to multiple cells at the same base station. A drawback with soft handover is that it requires additional hardware resources on the network side, as the handset has multiple connections. In a well-designed radio network,3040 % of the users will be in soft or softer handover.