Document Type : Research Article


Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria


The fifth generation (5G) system architecture is defined as service-based and the core network functions are described as sets of services accessible through application programming interfaces (API). One of the components of 5G is Multi-access Edge Computing (MEC) which provides the open access to radio network functions through API. Using the mobile edge API third party analytics applications may provide intelligence in the vicinity of end users which improves network performance and enhances user experience. In this paper, we propose new mobile edge API to access and control the mobility at the network edge. The application logic for provisioning access and mobility policies may be based on considerations like load level information per radio network slice instance, user location, accumulated usage, local policy, etc. We describe the basic API functionality by typical use cases and provide the respective data model, which represents the resource structure and data types. Some implementation aspects, related to modeling the resource states as seen by a mobile edge application and by the network, are discussed.


[1] A. Ravanshid, P. Rost, D. S. Michalopoulos, V. V. Phan, H. Bakker, D. Aziz, S. Tayade, H. D. Schotten, S.Wong, and O. Holland. Multi-connectivity functional architectures in 5g. In 2016 IEEE International Conference on Communications
Workshops (ICC), pages 187–192, May 2016.
[2] D. Fang, Y. Qian, and R. Q. Hu. Security for 5g mobile wireless networks. IEEE Access, 6:4850–4874, 2018.
[3] M. Mezzavilla, M. Zhang, M. Polese, R. Ford,S. Dutta, S. Rangan, and M. Zorzi. End-toend simulation of 5g mmwave networks. IEEE Communications Surveys Tutorials, 20(3):2237–2263, thirdquarter 2018.
[4] 5GPPP. Architecture Working Group. View on 5G Architecture. white paper, 5GPPP, Dec. 2017.ver. 2.0.
[5] S. Chandrashekar, A. Maeder, C. Sartori,T. Höhne, B. Vejlgaard, and D. Chandramouli. 5g multi-rat multi-connectivity architecture. In 2016 IEEE International Conference on Communications Workshops (ICC), pages 180–186, May 2016.
[6] Shun-Neng Yang, Cheng-Hsu Ke, Yi-Bing Lin, and Chai-Hien Gan. Mobility management through access network discovery and selection function for load balancing and power saving in software-defined networking environment. EURASIP Journal on Wireless Communications and Networking, 2016(1):204,Sep 2016.
[7] Dionysis Xenakis, Nikos Passas, Lazaros Merakos, and Christos Verikoukis. Andsf-assisted vertical handover decisions in the ieee 802.11/lteadvanced network. Computer Networks, 106:91– 108, 2016.
[8] J. Orimolade, N. Ventura, and O. Falowo. Andsfbased wlan offloading in the evolved packet system (eps). In 2016 18th Mediterranean Electrotechnical Conference (MELECON), pages 1–6, April 2016.
[9] 3GPP TS 23.503. Technical Specification Group Services and System Aspects, Policy and Charging Control Framework for the 5G System. Technical specification, 3GPP, September 2018. Stage 2, Release 15.
[10] Y. Lin. Keynote topic: Network cloudification: Sdn-nfv and 5g-mec with edge and fog computing. In 2017 27th International  Telecommunication Networks and Applications Conference (ITNAC), pages 1–8, Nov 2017.
[11] P. Porambage, J. Okwuibe, M. Liyanage, M. Ylianttila, and T. Taleb. Survey on multiaccess edge computing for internet of things realization. IEEE Communications Surveys Tutorials, 20(4):2961–2991, 2018.
[12] Evelina Pencheva and Ivaylo Atanasov. Usage monitoring control in radio access network. In Proceedings of the 23rd Conference of Open Innovations Association FRUCT, FRUCT’23, pages 41:306–41:314, 2018.
[13] 3GPP TS 23.501. Technical Specification Group Services and System Aspects, System Architecture for the 5G System. Technical specification, 3GPP, September 2018. Stage 2, Release 15.
[14] ETSI GS MEC 013. Mobile Edge Computing (MEC); Location API. Technical specification,ETSI, 2017.
[15] 3GPP TS 23.502. Technical Specification Group Services and System Aspects, Procedures for the 5G System. Technical specification, 3GPP, September 2018. Stage 2, Release 15.
[16] 3GPP TS 29.571. Technical Specification Group Core Network and Terminals; 5G System; Common Data Types for Service Based Interfaces. Technical specification, 3GPP, June 2018. Stage 3, Release 15.
[17] G. Pola, C. Manes, A. J. van der Schaft, and M. D. D. Benedetto. Bisimulation equivalence of discrete-time stochastic linear control systems. IEEE Transactions on Automatic Control, 63(7):1897–1912, July 2018.