发明授权
- 专利标题： Automated power control to optimize power consumption and improved wireless connection
- 专利标题（中）： 自动功率控制，优化功耗，改善无线连接
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申请号： US12401570申请日： 2009-03-10
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公开(公告)号： US08229370B2公开(公告)日： 2012-07-24
- 发明人: Mario Wu , Makoto Nakayama , John Guo , Jack Lieng , Walter Lee
- 申请人： Mario Wu , Makoto Nakayama , John Guo , Jack Lieng , Walter Lee
- 申请人地址： JP Nagano-Ken
- 专利权人： Minebea Co., Ltd.
- 当前专利权人： Minebea Co., Ltd.
- 当前专利权人地址： JP Nagano-Ken
- 代理机构： Fountainhead Law Group P.C.
- 代理商 George B. F. Yee
- 主分类号： H04B17/00
- IPC分类号： H04B17/00 ; H04B1/04
摘要：
A method for automatically adjusting signal output power of a ZigBee wireless module. The method includes sending a signal with an output power from a transmitter of a ZigBee module to a receiver. The ZigBee module includes a power amplifier/low noise amplifier (PA/LNA) circuit. The output power can be adjusted between a minimum level and a maximum level. Additionally, the method includes generating a Link Quality Indicator (LQI) by the receiver based on the signal strength and returning the LQI to the ZigBee module. If the LQI is not within a predetermined range between a maximum value and a minimum value, the method includes adjusting the output power for sending next signal. If the output power from the transmitter has reached to the minimum level or the maximum level, the method further includes adjusting the PA/LNA circuit of the ZigBee module for maintaining the LQI within the predetermined range.
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