Invention Application
- Patent Title: METHOD AND APPARATUS FOR REGULATING THE TRANSMITTED POWER IN MULTI-RATE WIRELESS COMMUNICATION SYSTEMS
- Patent Title (中): 用于调整多速无线通信系统中传输功率的方法和装置
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Application No.: US12477552Application Date: 2009-06-03
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Publication No.: US20090239487A1Publication Date: 2009-09-24
- Inventor: Xin Jin , Nagula T. Sangary , M. Khaledul Islam , Wen Zhao , Nasserullah Khan , Wen-Yen Chan , Qing Zhong Jiao
- Applicant: Xin Jin , Nagula T. Sangary , M. Khaledul Islam , Wen Zhao , Nasserullah Khan , Wen-Yen Chan , Qing Zhong Jiao
- Applicant Address: CA Waterloo
- Assignee: RESEARCH IN MOTION LIMITED
- Current Assignee: RESEARCH IN MOTION LIMITED
- Current Assignee Address: CA Waterloo
- Main IPC: H04B1/04
- IPC: H04B1/04
Abstract:
A method and apparatus for regulating Tx power in a multi-rate mobile device transmitter containing signal dependent gain stages. A data rate and signal format indicator signal corresponding to the transmitted signal, and a desired reference power signal are fed to a mapper that outputs a calibration value based on the desired reference power level at the antenna. The calibration value controls the power amplifier gain characteristics in real time.
Public/Granted literature
- US07869776B2 Method and apparatus for regulating the transmitted power in multi-rate wireless communication systems Public/Granted day:2011-01-11
Information query
