Invention Grant
US07933239B2 FFT-size detector and FFT-size detection method and cell search apparatus and cell search method in cellular system
有权
FFT大小检测器和FFT大小检测方法以及蜂窝系统中的小区搜索装置和小区搜索方法
- Patent Title: FFT-size detector and FFT-size detection method and cell search apparatus and cell search method in cellular system
- Patent Title (中): FFT大小检测器和FFT大小检测方法以及蜂窝系统中的小区搜索装置和小区搜索方法
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Application No.: US11812046Application Date: 2007-06-14
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Publication No.: US07933239B2Publication Date: 2011-04-26
- Inventor: Huei-Jin Lin , Wei Ping Chuang , Jiun-Yo Lai , Pang-An Ting
- Applicant: Huei-Jin Lin , Wei Ping Chuang , Jiun-Yo Lai , Pang-An Ting
- Applicant Address: TW Hsinchu
- Assignee: Industrial Technology Research Institute
- Current Assignee: Industrial Technology Research Institute
- Current Assignee Address: TW Hsinchu
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Main IPC: H04B7/00
- IPC: H04B7/00 ; H04B7/208 ; H04W4/00 ; H04J1/00 ; H04J3/06
Abstract:
The invention provides an FFT-size detection method and system and a cell search method and system based on FFT-size detection, and more particularly to a cell search method based on FFT-size detection in cellular system. The cell search method utilizes two frames to correctly detect the actual cell ID. The cell search method uses the first frame to detect the actual FFT size of a received signal. When the FFT size is determined, the cell search method use the second frame to detect the cell ID of a base station outputting the received signal based on the FFT size.
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