中圖分類號： TN929.5
文獻標識碼： A
DOI：10.16157/j.issn.0258-7998.200711
中文引用格式： 林平平，張光輝，李皛. 5G SA網絡的移動性管理研究[J].電子技術應用，2020，46(9)：7-13.
英文引用格式： Lin Pingping，Zhang Guanghui，Li Xiao. Research on the mobility management in 5G SA network[J]. Application of Electronic Technique，2020，46(9)：7-13.

Research on the mobility management in 5G SA network

Abstract： SA is the final network architecture of 5G network evolution and development, which adopts a brand new network deployment. But it will coexist with current LTE networks for quite a long time. In order to ensure that UEs enjoy uninterrupted service in the mobile process, the network needs to provide efficient mobility management. Mobility management can be divided into cell reselection, handover, and redirection based on UE state. And it can be divided into intra-system mobility management and inter-system mobility management according to whether the service cells cross the system. To achieve the 0 ms interruption delay of handover, R16 had proposed several mobility management enhancement solutions. The paper mainly introduced the mobility management between NR cells, the interoperability between 4G/5G cells and the mobility management enhancement solutions in R16, which provided a reference for the mobility management optimization of 5G SA network.

Key words : SA；mobility management；handover；reselection；mobility enhancement