Prototype of FDD/TDD dual mode LTE base station and terminal adaptor utilizing TV white-spaces
Prototype of FDD/TDD dual mode LTE base station and terminal adaptor utilizing TV white-spaces
复制标题
利用电视空白频段的 FDD/TDD 双模 LTE 基站和终端适配器原型
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
H. Harada
中科院分区：
文献类型：
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作者：
T. Matsumura;Kazuo Ibuka;K. Ishizu;H. Murakami;H. Harada
近来，由于基于高速和高容量通信的服务或应用业务的增长，在蜂窝系统中频谱资源短缺问题已经加剧。为了解决这个问题，数据流量卸载到“空白空间”已经在世界范围内推广。特别是电视波段的空白（TVWS，TV白空间）已经引起了人们的关注，以确保现有通信系统的更多信道，并且在美国、英国、日本等已经建立了TVWS的二次使用规则。NICT已经研究和开发了TVWS通信系统，该系统包括白空间数据库，网络管理器和基于包括IEEE802.11af草案标准的WLAN系统的一些原型TV频带设备，然而，基于当前蜂窝系统的TV频带设备对于进一步研究向TVWS的蜂窝业务卸载也是必要的。在本研究中，TDD/FDD双模LTE基站和终端适配器利用TVWS原型通过应用UHF转换器技术和RF性能的特点。
Recently, a spectrum resource shortage problem has been aggravated in a cellular system due to growth of service or application business based on high-speed and high-capacity communication. To solve this problem, data traffic offloading to “white-spaces” has been promoted worldwide. In particular, white-spaces in the TV band (TVWS, TV White-spaces) has attracted attentions for securing more channels to existing communication systems and rules for a secondary use of the TVWS have been established in the USA, the UK, Japan, etc. NICT has researched and developed TVWS communication systems that consist of a white-space database, a network manager and some prototyped TV band devices based on WLAN systems including the IEEE802.11af draft standard, however, TV band devices based on current cellular systems are also necessary for further investigation of cellular traffic offloading to the TVWS. In this study, TDD/FDD dual mode LTE base station and terminal adaptor utilizing TVWS are prototyped by applying the UHF converter technology and RF performance is characterized.