Inter-Slice Mobility Management in 5G: Motivations, Standard Principles, Challenges and Research Directions Articles uri icon

publication date

  • April 2022

start page

  • 93

end page

  • 100


  • 1


  • 6

International Standard Serial Number (ISSN)

  • 2471-2825

Electronic International Standard Serial Number (EISSN)

  • 2471-2833


  • Mobility management in a sliced 5G network introduces new and complex challenges. In a network-sliced environment, user mobility has to be managed among not only different base stations or access technologies but also different slices. Managing user mobility among slices, or inter-slice mobility, motivates the need for new solutions. This article, presented as a tutorial, focuses on the problem of inter-slice mobility from the perspective of 3GPP standards for 5G. It provides a detailed overview of the relevant 3GPP standard principles. Accordingly, key technical gaps, challenges, and corresponding research directions are identified toward achieving seamless inter-slice mobility within the current 3GPP network slicing framework.


  • Telecommunications


  • inter-slice; 5g; mobility management