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A novel modulation/RF architecture for long battery life-time PCS mobile units

机译:一种新颖的调制/ RF架构,可延长电池寿命的PCS移动设备

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摘要

A novel modulation/RF architecture is proposed for digital cellular and PCS applications to improve the system power efficiency. By introducing controlled cross-correlation to the I and Q channels in an offset QPSK system and employing modified baseband filtering techniques, the proposed modulation architecture provides a constant envelope modulated signal and improves the power efficiency by 4-7 dB as compared to conventional QPSK. By implementing this new system architecture in a cellular phone, portable computer, or other PCS mobile units, the battery life time could be significantly improved.
机译:针对数字蜂窝和PCS应用,提出了一种新颖的调制/ RF体系结构,以提高系统功率效率。通过在偏置QPSK系统中将受控的互相关引入I和Q通道并采用改进的基带滤波技术,与常规QPSK相比,所提出的调制架构可提供恒定的包络调制信号并将功率效率提高4-7 dB。通过在蜂窝电话,便携式计算机或其他PCS移动单元中实施这种新的系统架构,可以大大改善电池寿命。

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