发明名称 |
Sample rate change between single-carrier and multi-carrier waveforms |
摘要 |
A Baseband transmitter for a radio frequency (RF) communication device according to an embodiment of the present invention includes a single-carrier processor, a pulse shape filter, a multi-carrier processor and a signal combiner. The single-carrier processor generates a single-carrier signal at a first sample rate. The pulse shape filter includes multiple polyphase filters which filter the single-carrier signal according to a time shaping pulse that approximates a multi-carrier power spectrum and a sample switch that selects outputs of the polyphase filters at a second sample rate. The multi-carrier processor generates a multi-carrier signal at the second sample rate. The signal combiner combines the filtered single-carrier signal with the multi-carrier signal while maintaining phase, gain, frequency and timing alignment.
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申请公布号 |
US2003072284(A1) |
申请公布日期 |
2003.04.17 |
申请号 |
US20020191221 |
申请日期 |
2002.07.09 |
申请人 |
WEBSTER MARK A.;SEALS MICHAEL J. |
发明人 |
WEBSTER MARK A.;SEALS MICHAEL J. |
分类号 |
H04L12/28;H04L12/56;H04L25/02;H04L27/00;H04L27/26;H04W88/02;(IPC1-7):H04B7/216 |
主分类号 |
H04L12/28 |
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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