发明公开
- 专利标题： METHODS FOR TRANSCEIVING DATA IN MULTI-BAND ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS COMMUNICATIONS SYSTEM AND COMMUNICATIONS APPARATUSES UTILIZING THE SAME
- 专利标题（中）： 方法发送/接收数据的多频带正交频复用通信网络，多访问和通信设备
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申请号： EP09793845.0申请日： 2009-07-07
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公开(公告)号： EP2297862A1公开(公告)日： 2011-03-23
- 发明人: LIAO, Pei-Kai , FU, I-Kang
- 申请人： Mediatek Inc.
- 申请人地址： No. 1, Dusing Road 1 Science-based Industrial Park Hsin-chu City, Taiwan 300 CN
- 专利权人： Mediatek Inc.
- 当前专利权人： Mediatek Inc.
- 当前专利权人地址： No. 1, Dusing Road 1 Science-based Industrial Park Hsin-chu City, Taiwan 300 CN
- 代理机构： 2K Patentanwälte Blasberg Kewitz & Reichel
- 优先权： US78509P 20080707; US498531 20090707
- 国际公布： WO2010003370 20100114
- 主分类号： H04B1/10
- IPC分类号： H04B1/10 ; H04J11/00 ; H04L27/26
摘要：
A communications apparatus is provided. A receiving module receives a signal with a predetermined signal bandwidth. A low pass filter filters the signal to obtain a filtered signal. A filter bandwidth of the low pass filter is wide enough to pass the regular sub-carrier frequency components and at least half of the guard sub-carrier frequency components of the signal. An analog to digital converter samples the filtered signal with a sampling rate exceeding a standard sampling rate defined in accordance with the predetermined signal bandwidth of the signal to obtain a plurality of digital samples. A Fast Fourier Transform module performs a fast Fourier transform on a predetermined number of points of the digital samples to obtain a plurality of transformed samples. The predetermined number exceeds a standard number defined in accordance with the predetermined carrier bandwidth. A sub-carrier collector collects the data from the transformed samples.
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