移动通信手持设备的省电设计

Power-saving Design for Mobile Handsets

省电设计是手持设备的关键技术之一,对用于野战环境的移动通信手持电台而言,连续工作时间更是其关键指标。为提高连续工作时间,从协议优化、硬件选型、软件部署等几个方面入手,采用VAD、间歇守候、闭环功率控制和显示控制等关键技术对移动通信手持电台进行省电设计,减少设备有效工作时间占空比,动态调整工作功率,有效降低了设备功耗,提升其连续工作时间。

Power-saving design is critical for mobile handsets. To increase the continuous working time of mobile handsets in the field, we improved the protocol optimization, hardware design and software configuration. Voice activity detection（VAD）, intermittent waiting, closed loop power control as well as display control were employed to achieve the reduction of effective working time duty and dynamic power adjustment. The validity of our power- saving design has been verified on the completed devices in terms of power consumption and continuous working time.