Correct Answer - Option 1 : Soft handover
Handover or Hand-off is a cellular mechanism of transfer of call or data service from one cell to another.
The handover is of two types:
(i) Soft Handover.
(ii) Hard handover
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Soft hand-off
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Hard hand-off
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The connection is continuous while mobile moving from one cell to another cell.
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Connection break when mobile moving from one cell to another cell.
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Automatic detection and connection possible
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When a connection breaks it can not connect itself.
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Operate only one frequency when the cell changed also.
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Uses different frequencies for different cells.
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Two connection possible at a time
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Only one connection possible at a time.
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All CDMA (Code division multiple access) based technologies 2G and 3G use soft handover because the link is established before breaking while moving from one cell area to another cell area.
