动态频谱共享技术的方案与开销研究
2020年电子技术应用第9期
周阅天,许晓航,谢伟良,陈建刚,李志军,李 皛
中国电信股份有限公司智能网络与终端研究院,北京102209
摘要: 动态频谱共享(Dynamic Spectrum Sharing,DSS)技术在同一频段内为不同制式的通信技术动态、灵活地分配频谱资源,这种技术在快速部署5G网络、实现4G向5G平滑演进、利用低频段实现5G网络广覆盖等方面具有重要意义。虽然DSS在多数情况下通过灵活分配频谱资源可以提高频谱资源利用率,但引入DSS技术的同时,也带来了额外的频谱开销。介绍了目前主流的DSS技术方案与相应的开销计算方法,通过对比引入DSS技术前后的开销损失来分析各种DSS技术方案的优缺点,总结归纳出主流技术方案的额外开销。
中圖分類號: TN929.5
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.200738
中文引用格式: 周閱天,許曉航,謝偉良,等. 動態(tài)頻譜共享技術的方案與開銷研究[J].電子技術應用,2020,46(9):1-6,13.
英文引用格式: Zhou Yuetian,Xu Xiaohang,Xie Weiliang,et al. Research on technical scheme and cost of dynamic spectrum sharing[J]. Application of Electronic Technique,2020,46(9):1-6,13.
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.200738
中文引用格式: 周閱天,許曉航,謝偉良,等. 動態(tài)頻譜共享技術的方案與開銷研究[J].電子技術應用,2020,46(9):1-6,13.
英文引用格式: Zhou Yuetian,Xu Xiaohang,Xie Weiliang,et al. Research on technical scheme and cost of dynamic spectrum sharing[J]. Application of Electronic Technique,2020,46(9):1-6,13.
Research on technical scheme and cost of dynamic spectrum sharing
Zhou Yuetian,Xu Xiaohang,Xie Weiliang,Chen Jiangang,Li Zhijun,Li Xiao
China Telecom Intelligent Network and Terminal Research Institute,Beijing 102209,China
Abstract: Dynamic spectrum sharing(DSS) technology allocates spectrum resources dynamically and flexibly for different communication technologies in the same frequency band. This technology is of great significance in the rapid deployment of 5G network to realize the smooth evolution from 4G to 5G, and the realization of 5G network wide coverage by using low frequency band. Although DSS can improve the utilization of spectrum resources by flexibly allocating spectrum resources in most cases, the introduction of DSS technology also brings additional spectrum cost. This paper will introduce the current mainstream DSS technology scheme and the corresponding cost calculation method, and analyze the advantages and disadvantages of various DSS technology schemes by comparing the cost loss before and after the introduction of DSS technology.
Key words : dynamic spectrum sharing(DSS);static spectrum sharing(SSS);5G network evolution;spectrum resources;cost calculation
0 引言
隨著無線設備數(shù)量指數(shù)級增加,人們對頻譜資源需求的急劇增長,頻譜共享技術(Static Spectrum Sharing,SSS)隨之而來。實現(xiàn)頻譜共享技術的方式最早是靜態(tài)頻譜共享,該技術是在同一頻譜段內(nèi)給不同制式的通信技術分別分配專用的載波。SSS技術相當于在同一頻段內(nèi)以頻分復用(FDD)的方式使用兩種通信技術,這種方案簡單透明利于實現(xiàn),但當其中一種通信制式用戶數(shù)量較少的情況下將會造成大量的頻譜資源浪費[1]。
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作者信息:
周閱天,許曉航,謝偉良,陳建剛,李志軍,李 皛
(中國電信股份有限公司智能網(wǎng)絡與終端研究院,北京102209)
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