发明名称 |
Methods for transceiving data in multi-band orthogonal frequency division multiple access communications system and communications apparatuses utilizing the same |
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. |
申请公布号 |
US8665695(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US20090498531 |
申请日期 |
2009.07.07 |
申请人 |
LIAO PEI-KAI;FU I-KANG;MEDIATEK INC. |
发明人 |
LIAO PEI-KAI;FU I-KANG |
分类号 |
H04J11/00 |
主分类号 |
H04J11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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