Invention Grant
US08290085B2 Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
有权
具有高峰值与平均功率比的无线通信系统中的功率放大器效率的提高方法和装置
- Patent Title: Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
- Patent Title (中): 具有高峰值与平均功率比的无线通信系统中的功率放大器效率的提高方法和装置
-
Application No.: US13193589Application Date: 2011-07-28
-
Publication No.: US08290085B2Publication Date: 2012-10-16
- Inventor: Wen-Yen Chan , Nasserullah Khan , Xin Jin , Nagula Tharma Sangary , Michael Franz Habicher , Qingzhong Jiao
- Applicant: Wen-Yen Chan , Nasserullah Khan , Xin Jin , Nagula Tharma Sangary , Michael Franz Habicher , Qingzhong Jiao
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Agency: Novak Druce + Quigg LLP
- Main IPC: H04L25/03
- IPC: H04L25/03
Abstract:
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.
Public/Granted literature
Information query
