发明名称 |
Method and apparatus for reducing dynamic range of a power amplifier |
摘要 |
An output-power threshold is selected such that one or more signal requirements is not outside a pre-determined range when output power of a polar transmitter is less than the output-power threshold. A determination is made whether the output power is less than the threshold. In response to a determination that the output power is less than the threshold, amplitude modulation of a polar signal transmitted by the polar transmitter is disabled. When the output power meets or exceeds the output-power threshold, the polar signal transmitted by the polar transmitter is both amplitude and phase modulated.
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申请公布号 |
US6892057(B2) |
申请公布日期 |
2005.05.10 |
申请号 |
US20020215127 |
申请日期 |
2002.08.08 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
NILSSON MAGNUS |
分类号 |
H03C3/09;H03C5/00;(IPC1-7):H04B1/04;H04G3/20 |
主分类号 |
H03C3/09 |
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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