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Registered APPARATUS FOR GENERATING DOWN LINK SIGNAL, AND METHOD AND APPARATUS FOR CELL SEARCH IN CELLULAR SYST
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APPARATUS FOR GENERATING DOWN LINK SIGNAL, AND METHOD AND APPARATUS FOR CELL SEARCH IN CELLULAR SYST
- Inventors
- Ahn Jae Young, Bangwon Seo, Lee Sang Hyun, Ko Young Jo
- Application No.
- 12065831 (2006.09.05)
- Publication No.
- 20080212462 (2008.09.04)
- Registration No.
- 8130630 (2012.03.06)
- Country
- UNITED STATES
- Project Code
- 05MM1100, Research on 4G Mobile Communications Technology, Hwang Seung Ku
- Abstract
- A method for generating a downlink signal and searching for a cell from the downlink signal in an OFDM-based cellular system is provided. Thus, a pilot pattern is formed in the downlink signal, and the pilot pattern is formed of a product of a cell-specific scrambling code and a cell group-specific code. The scrambling code is different for each cell and the same for each sub-frame, and the cell group-specific code is different for each cell and different for each sub-frame.
- KSP Keywords
- Cell group, Cell search, Cell-specific, Cellular system, Sub-frame, down link, pilot pattern