发明名称 |
Increasing OFDM transmit power via reduction in pilot tone |
摘要 |
Transmitting an ultra wideband (UWB) signal in some embodiments comprises reducing power within a first sub-band with respect to a nominal power of the UWB signal within the first sub-band and correspondingly increasing power within a second sub-band with respect to a nominal power of the UWB signal within the second sub-band. An ultra wideband (UWB) transmitter comprises an input interface configured to receive data, a modulator configured to modulate received data into symbols and a power shaping component coupled to the modulator, configured to shape power density spectrum of a UWB signal being transmitted. Transmitting an ultra wideband (UWB) signal in some embodiments comprises determining whether to power shape the UWB signal; in the event that it is determined that the UWB signal is to be power shaped, reducing power within a first sub-band with respect to the nominal power of the UWB signal within the first sub-band; and correspondingly increasing power within a second sub-band with respect to the nominal power of the UWB signal within the second sub-band such that bandwidth of the UWB signal is maintained to be greater than or equal to a required bandwidth. |
申请公布号 |
US7236747(B1) |
申请公布日期 |
2007.06.26 |
申请号 |
US20040871603 |
申请日期 |
2004.06.17 |
申请人 |
STACCATO COMMUNICATIONS, INC. |
发明人 |
MEACHAM DAN;LARSSON TORBJORN A. |
分类号 |
H04B1/00;H04B7/00 |
主分类号 |
H04B1/00 |
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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