首页>
外国专利>
FFT-SIZE DETECTOR AND FFT-SIZE DETECTION METHOD AND CELL SEARCH APPARATUS AND CELL SEARCH METHOD IN CELLULAR SYSTEM
FFT-SIZE DETECTOR AND FFT-SIZE DETECTION METHOD AND CELL SEARCH APPARATUS AND CELL SEARCH METHOD IN CELLULAR SYSTEM
展开▼
机译:细胞系统中的FFT大小检测器和FFT大小检测方法以及细胞搜索装置和细胞搜索方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An apparatus and method for cell acquisition and downlink synchronization acquisition in an OFDMA wireless communication system are provided. In an SS apparatus in a broadband wireless communication system, a preamble subcarrier acquirer extracts subcarrier values having a preamble code from an FFT signal. A multiplier code-demodulates the subcarrier values by multiplying the subcarrier values by a preamble code. A correlator calculates a plurality of differential correlations in the code-demodulated signal. An IFFT processor IFFT-processes the differential correlations by mapping the differential correlations to subcarriers. A maximum value detector detects a maximum value from the IFFT signal and calculates a timing offset using an IFFT output index having the maximum value.
展开▼