Cell search method and apparatus in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorByung Wan Yu
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Abstract
A cell search method and apparatus in an asynchronous wireless communication system for outputting a cell search result by comparing energy ratios of detected candidate cells with a reference threshold ratio are provided. The method includes determining energy values of correlations between different phases of signals received from neighbor cells, detecting at least one candidate cell in descending order of energy values, and outputting cell search results by determining an energy ratio of the at least one candidate cell and comparing the energy ratio with a reference threshold ratio.
Claims18
A cell search method in a wireless communication system operating with a stepwise cell search procedure, the method comprising:
- determining energy values of correlations between different phases of signals received from neighbor cells;
- detecting at least one candidate cell in descending order of energy values;
- and
- outputting cell search results by determining an energy ratio of the at least one candidate cell and comparing the energy ratio with a reference threshold ratio.
A cell search apparatus for a wireless communication system operating a stepwise cell search procedure, the apparatus comprising:
- an energy calculator for determining energy values of correlations between different phases of signals received from neighbor cells;
- a candidate cell detector for detecting at least one candidate cell in descending order of energy value;
- and
- a cell search result determiner for outputting cell search results by determining an energy ratio of the at least one candidate cell and for comparing the energy ratio with a reference threshold ratio.
Dependencies are inferred from the claim text.