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 |
US2012329411(A1) |
申请公布日期 |
2012.12.27 |
申请号 |
US201213604202 |
申请日期 |
2012.09.05 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
CHAN WEN-YEN;KHAN NASSERULLAH;JIAO QINGZHONG;JIN XIN;HABICHER MICHAEL;SANGARY NAGULA THARMA |
分类号 |
H04B1/04;H01Q11/12;H04B1/69;H04B7/005 |
主分类号 |
H04B1/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|