发明名称 |
Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios |
摘要 |
A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block. |
申请公布号 |
US8290085(B2) |
申请公布日期 |
2012.10.16 |
申请号 |
US201113193589 |
申请日期 |
2011.07.28 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
CHAN WEN-YEN;KHAN NASSERULLAH;JIN XIN;SANGARY NAGULA THARMA;HABICHER MICHAEL FRANZ;JIAO QINGZHONG |
分类号 |
H04L25/03;H01Q11/12;H04B1/04;H04B1/69;H04B7/005 |
主分类号 |
H04L25/03 |
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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