[摘要] 本发明涉及到和公开了一种新的无线移动通信系统的体系结构，即软件定义无线电(sdr-software defined radio)技术和支持sdr技术在无线通信系统的基站中具有多种功能射频收发信机的设计方法。
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SDR (software Defined radio) defines that on the simple and general hardware platform, varies radio applications can be implemented by using the software which can be updated and reconfigured.
软件无线电(SDR)是指在简单通用的硬件平台上，通过可升级、可重配置的应用软件实现各种无线电功能。
So there's a trend towards making the transceiver as digital as possible. This trend points to software-defined radio (SDR), which appears to be this decade's Holy Grail for the RF world.
这是个很难做的混合物，所以现在有趋势将收发器做的尽量数字化，这个趋势就是软件无线电(SDR)，它看上去是RF领域在这个年代的圣杯。
In its most basic form, CR is a hybrid technology involving software defined radio (SDR) as applied to spread spectrum communication.
在其最基本的形式，CR是混合动力技术涉及软件定义无线电(SDR)应用于扩频通信。
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