The use of unlicensed wireless devices in TV White Spaces (TVWS) is gaining traction worldwide as a mean to increase spectrum utilization of TV bands. Regulators around the world have released or preparing the regulation frameworks for unlicensed wireless devices operating in TVWS to regulate these white space devices (WSDs). As the use of WSDs is still mostly in trial stages and the switchover from analogue to digital TV is not completed worldwide, the regulators have regular updates to the regulations of WSDs after accumulating more knowledge from the trials. In this paper, we provide an overview and comparisons of the latest TVWS regulations in major regions such as North America, Europe and Asia Pacific. We will point out the rationale for some of the differences so that readers are aware of the various parameters to watch out for when using TVWS.
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机译：在TV White Spaces（TVW）中使用未经许可的无线设备在全球范围内获得牵引力，以增加电视频带的频谱利用率。世界各地的监管机构已发布或准备用于在TVWS中运行的未经许可的无线设备的监管框架，以调节这些白色空间设备（WSD）。由于WSD的使用主要是在试验阶段和从模拟到数字电视的切换未完成，因此监管机构在从试验中积累了更多知识后，对WSD的规定定期更新。在本文中，我们提供了北美，欧洲和亚太地区等主要地区的最新TVWS规定的概述和比较。我们将指出一些差异的理由，以便读者知道使用TVWS时要注意的各种参数。
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