中圖分類號： TN929.5 文獻標(biāo)識碼： A DOI：10.16157/j.issn.0258-7998.200307 中文引用格式： 高謙，賀琳,，李福昌,，等. 5G NSA接入網(wǎng)共享技術(shù)演進方案研究[J].電子技術(shù)應(yīng)用，2020,，46(5)：9-13. 英文引用格式： Gao Qian,，He Lin，Li Fuchang,，et al. Research on the evolution of 5G NSA radio access network sharing[J]. Appli- cation of Electronic Technique,，2020，46(5)：9-13.
Research on the evolution of 5G NSA radio access network sharing
Gao Qian,，He Lin,，Li Fuchang,，Zhu Xuetian，F(xiàn)eng Yi
China Unicom Network Technology Research Institute,，Beijing 100048,，China
Abstract： There are more and more mobile operators had launched 5G services in 2019, 5G is entering a critical period of commercial deployment globally. Considering the maturity of SA standards, equipment and terminals, 5G shared network is based on the NSA architecture in the initial stage of 5G deployment, so the operators need to consider evolution towards SA phase in order to ensure that the network sharing would last throughout the 5G life cycle. This paper systematically analyzes different evolutions from network complexity, operation and maintenance optimization complexity, user experience and so on, in order to provide an effective guideline for operators to choose the evolution for RAN sharing.
5G網(wǎng)絡(luò)相比于以往的2G/3G/4G網(wǎng)絡(luò)一個最大的不同是,，5G組網(wǎng)分為非獨立(Non-Stand Alone，NSA)組網(wǎng)和獨立(Stand Alone,，SA)組網(wǎng)兩種方案,，其中NSA組網(wǎng)主要依托于現(xiàn)有4G網(wǎng)絡(luò)，使用雙連接的方式實現(xiàn)4G和5G的聯(lián)合組網(wǎng),，其應(yīng)用場景有限，主要適用于增強移動寬帶(enhanced Mobile Broadband,，eMBB)業(yè)務(wù),，故被看作5G初期的過渡方案；而SA網(wǎng)絡(luò)是一張獨立于4G的全新網(wǎng)絡(luò),，能夠支持所有的5G新特性及新業(yè)務(wù),，是業(yè)界公認的5G目標(biāo)方案[2-5]。
