《電子技術(shù)應(yīng)用》
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動態(tài)頻譜共享技術(shù)的方案與開銷研究
2020年電子技術(shù)應(yīng)用第9期
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(luò)與終端研究院,北京102209
摘要: 動態(tài)頻譜共享(Dynamic Spectrum Sharing,DSS)技術(shù)在同一頻段內(nèi)為不同制式的通信技術(shù)動態(tài)、靈活地分配頻譜資源,這種技術(shù)在快速部署5G網(wǎng)絡(luò)、實現(xiàn)4G向5G平滑演進(jìn)、利用低頻段實現(xiàn)5G網(wǎng)絡(luò)廣覆蓋等方面具有重要意義。雖然DSS在多數(shù)情況下通過靈活分配頻譜資源可以提高頻譜資源利用率,但引入DSS技術(shù)的同時,也帶來了額外的頻譜開銷。介紹了目前主流的DSS技術(shù)方案與相應(yīng)的開銷計算方法,通過對比引入DSS技術(shù)前后的開銷損失來分析各種DSS技術(shù)方案的優(yōu)缺點,總結(jié)歸納出主流技術(shù)方案的額外開銷。
中圖分類號: TN929.5
文獻(xiàn)標(biāo)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(shù)的方案與開銷研究[J].電子技術(shù)應(yīng)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(shè)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(shù)(Static Spectrum Sharing,SSS)隨之而來。實現(xiàn)頻譜共享技術(shù)的方式最早是靜態(tài)頻譜共享,該技術(shù)是在同一頻譜段內(nèi)給不同制式的通信技術(shù)分別分配專用的載波。SSS技術(shù)相當(dāng)于在同一頻段內(nèi)以頻分復(fù)用(FDD)的方式使用兩種通信技術(shù),這種方案簡單透明利于實現(xiàn),但當(dāng)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(luò)與終端研究院,北京102209)

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