research-article

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A case for stateless mobile core network functions in space

Authors:

Zeqi LaiAuthors Info & Claims

SIGCOMM '22: Proceedings of the ACM SIGCOMM 2022 Conference

Pages 298 - 313

https://doi.org/10.1145/3544216.3544233

Published: 22 August 2022 Publication History

Abstract

Is it worth and feasible to push mobile core network functions to low-earth-orbit (LEO) satellite mega-constellations? While this paradigm is being tested in space and promises new values, it also raises scalability, performance, and security concerns based on our study with datasets from operational satellites and 5G. A major challenge is today's stateful mobile core, which suffers from signaling storms in satellites' extreme mobility, intermittent failures in outer space, and attacks when unavoidably exposed to untrusted foreign locations. To this end, we make a case for a stateless mobile core in space. Our solution, SpaceCore, decouples states from orbital core functions, simplifies location states via geospatial addressing, eliminates unnecessary state migrations in satellite mobility by shifting to geospatial service areas, and localizes state retrievals with device-as-the-repository. Our evaluation with datasets from operational satellites and 5G shows SpaceCore's 17.5× over existing solutions signaling reductions and resiliency to failures/attacks.

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Index Terms

A case for stateless mobile core network functions in space
1. Networks
  1. Network protocols
    1. Network protocol design
  2. Network types
    1. Mobile networks

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SIGCOMM '22: Proceedings of the ACM SIGCOMM 2022 Conference

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DOI:10.1145/3544216

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Delft University of Technology
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Paul SKeluskar TVutukuru M(2025)A Scalable and Fault-Tolerant 5G Core on Kubernetes2025 17th International Conference on COMmunication Systems and NETworks (COMSNETS)10.1109/COMSNETS63942.2025.10885628(658-666)Online publication date: 6-Jan-2025
https://doi.org/10.1109/COMSNETS63942.2025.10885628
Bhosale VGavrilovska ABhardwaj K(2024)Krios: Scheduling Abstractions and Mechanisms for Enabling a LEO Compute CloudProceedings of the 2024 ACM Symposium on Cloud Computing10.1145/3698038.3698566(322-340)Online publication date: 20-Nov-2024
https://dl.acm.org/doi/10.1145/3698038.3698566
Pasandi HFraire JRatnasamy SRivano H(2024)A Survey on Direct-to-Device Satellite Communications: Advances, Challenges, and ProspectsProceedings of the 2nd International Workshop on LEO Networking and Communication10.1145/3697253.3697265(7-12)Online publication date: 18-Nov-2024
https://dl.acm.org/doi/10.1145/3697253.3697265
Ren YGamage ALiu LLi MChen SDong YCao ZGanesan DLane NShi W(2024)SateRIoT: High-performance Ground-Space Networking for Rural IoTProceedings of the 30th Annual International Conference on Mobile Computing and Networking10.1145/3636534.3690659(755-769)Online publication date: 4-Dec-2024
https://dl.acm.org/doi/10.1145/3636534.3690659
Chen JWang LLiu YLu Z(2024)Signaling Priority Reconstruction for Micro-serviced AMF in 6G2024 IEEE Wireless Communications and Networking Conference (WCNC)10.1109/WCNC57260.2024.10571192(01-06)Online publication date: 21-Apr-2024
https://doi.org/10.1109/WCNC57260.2024.10571192
Chen LTang FLi XLiu JZhu YYu J(2024)Adaptive Network Management Service Based on Control Relation Graph for Software-Defined LEO Satellite Networks in 6GIEEE Transactions on Services Computing10.1109/TSC.2024.3440028(1-17)Online publication date: 2024
https://doi.org/10.1109/TSC.2024.3440028
Liu YWang LLu ZShou G(2024)A QoS Guaranteed Efficient Integration of UPF and LEO Satellite NetworksIEEE Transactions on Network and Service Management10.1109/TNSM.2024.340025521:4(3727-3739)Online publication date: Aug-2024
https://doi.org/10.1109/TNSM.2024.3400255
Liu WLi YLi HChen YWang YLan JWu JWu QLiu JLai Z(2024)The Dark Side of Scale: Insecurity of Direct-to-Cell Satellite Mega-Constellations2024 IEEE Symposium on Security and Privacy (SP)10.1109/SP54263.2024.00149(445-464)Online publication date: 19-May-2024
https://doi.org/10.1109/SP54263.2024.00149
Liu LLiu WLi YLi H(2024)Enabling 6G and Beyond Network Functions From Space: Challenges and OpportunitiesIEEE Internet Computing10.1109/MIC.2024.335977328:2(8-17)Online publication date: 30-Jan-2024
https://dl.acm.org/doi/10.1109/MIC.2024.3359773
Liu YWang LLiu ALu ZShou GKsentini A(2024)Efficient Onboard Signaling Processing for Satellite-Terrestrial Integrated Core NetworksIEEE Internet of Things Journal10.1109/JIOT.2024.345089911:24(39865-39879)Online publication date: 15-Dec-2024
https://doi.org/10.1109/JIOT.2024.3450899
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