Toward an Open, Intelligent, and End-to-End Architectural Framework for Network Slicing in 6G Communication Systems

The definition of the fundamental concepts and the design of the architectural framework for network slicing in fifth-generation communication systems have been successfully concluded; the standardization activities are almost over; and the commercial deployment has already commenced worldwide. To compete for digital supremacy and to be seen as front-runners in the international technological race, researchers from various regions and countries have begun exploring the technical requirements, envisioning potential applications, identifying innovative enablers, developing testbeds for the preliminary validation of several terrestrial and non-terrestrial technologies, and conceptualizing the architectural design for the next generation of mobile communication systems – the sixth-generation (6G) – aiming to connect the human, physical, and digital worlds with a high level of intelligence and openness for the 2030s. In support of such an ambitious vision, this article extends the end-to-end network slicing concepts, methods, solutions, and functioning architectures towards 6G. To this intent, the study first presents several decisive motivating trends behind such an extension of network slicing in order to make forthcoming mobile networks fully slicing-aware. Following that, the paper attempts to highlight the intelligentization of a number of key enabling technologies that will bring a renaissance to network slicing in the next decade. It then proposes a unified architectural framework and its principal building blocks in several layers, paving the way for the implementation of an open and intelligent network and network slicing in 6G. The proposed architectural solution harmonizes the most recent specifications of the relevant de jure and de facto standards development organizations in their applicable layers with the aim of architecting a pre-standard-compliant and preliminary framework for slicing the 6G network. Finally, the article is intended to spur interest and lay the groundwork for further investigations and subsequent research and development by highlighting a number of open research challenges and directions in this flourishing field.

[1]  Yousaf Bin Zikria,et al.  A Lightweight Authentication Scheme for 6G-IoT Enabled Maritime Transport System , 2023, IEEE Transactions on Intelligent Transportation Systems.

[2]  Xuemin Shen,et al.  Holistic Network Virtualization and Pervasive Network Intelligence for 6G , 2023, IEEE Communications Surveys & Tutorials.

[3]  Zhe Ren,et al.  Network Slicing in 6G: An Authentication Framework for Unattended Terminals , 2023, IEEE Network.

[4]  Tarik Taleb,et al.  6G System architecture: A service of services vision , 2022, ITU Journal on Future and Evolving Technologies.

[5]  G. Karam,et al.  The Evolution of Networks and Management in a 6G World: An Inventor’s View , 2022, IEEE Transactions on Network and Service Management.

[6]  Farhana Javed,et al.  Demo: Blockchain-based Inter-Provider Agreements for 6G Networks , 2022, 2022 18th International Conference on Network and Service Management (CNSM).

[7]  A. Mihovska,et al.  Business Opportunities for Beyond 5G and 6G Networks , 2022, 2022 25th International Symposium on Wireless Personal Multimedia Communications (WPMC).

[8]  Mohammad Asif Habibi,et al.  Digital Twins for Industry 4.0 in the 6G Era , 2022, ArXiv.

[9]  Mohammad Asif Habibi,et al.  Enabling Network and Service Programmability in 6G Mobile Communication Systems , 2022, 2022 IEEE Future Networks World Forum (FNWF).

[10]  H. Koumaras,et al.  NEFSim: An open experimentation framework utilizing 3GPP’s exposure services , 2022, 2022 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit).

[11]  A. Molina-Sánchez,et al.  Offering the 3GPP Common API Framework as Microservice to Vertical Industries , 2022, 2022 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit).

[12]  Geoffrey Y. Li,et al.  6G Network AI Architecture for Everyone-Centric Customized Services , 2022, IEEE Network.

[13]  M. Guizani,et al.  Artificial Intelligence for 6G Networks: Technology Advancement and Standardization , 2022, IEEE Vehicular Technology Magazine.

[14]  T. Magedanz,et al.  An Organic 6G Core Network Architecture , 2022, 2022 25th Conference on Innovation in Clouds, Internet and Networks (ICIN).

[15]  F. C. Filho,et al.  A Study on the Software Architecture Documentation Practices and Maturity in Open-Source Software Development , 2022, 2022 IEEE 19th International Conference on Software Architecture (ICSA).

[16]  S. Dalmia,et al.  Transitioning to 6G Part 1: Radio Technologies , 2022, IEEE Wirel. Commun..

[17]  A. Ksentini,et al.  Toward Zero-Touch Management and Orchestration of Massive Deployment of Network Slices in 6G , 2022, IEEE Wireless Communications.

[18]  Tommaso Melodia,et al.  OrchestRAN: Network Automation through Orchestrated Intelligence in the Open RAN , 2022, IEEE INFOCOM 2022 - IEEE Conference on Computer Communications.

[19]  Faisal Naeem,et al.  Toward Experience-Driven Traffic Management and Orchestration in Digital-Twin-Enabled 6G Networks , 2022, ArXiv.

[20]  S. Pack,et al.  A Distributed NWDAF Architecture for Federated Learning in 5G , 2022, 2022 IEEE International Conference on Consumer Electronics (ICCE).

[21]  Yuedong Xu,et al.  Toward a Future Network Architecture for Intelligence Services: A Cyber Digital Twin-Based Approach , 2022, IEEE Network.

[22]  Varun G. Menon,et al.  A Roadmap of Next-Generation Wireless Technology for 6G-Enabled Vehicular Networks , 2021, IEEE Internet of Things Magazine.

[23]  Luca Valcarenghi,et al.  Automated Service Provisioning and Hierarchical SLA Management in 5G Systems , 2021, IEEE Transactions on Network and Service Management.

[24]  M. Zorzi,et al.  6G Drivers for B2B Market , 2021, Shaping Future 6G Networks.

[25]  Qixun Zhang,et al.  Joint Communication, Sensing, and Computation Enabled 6G Intelligent Machine System , 2021, IEEE Network.

[26]  Luis A. Garrido,et al.  Zero-Touch AI-Driven Distributed Management for Energy-Efficient 6G Massive Network Slicing , 2021, IEEE Network.

[27]  Xiaodong Duan,et al.  A Technical Research towards 5G SLA: System Definition, Sense and Assurance Solution , 2021, 2021 IEEE 21st International Conference on Communication Technology (ICCT).

[28]  Hans Dieter Schotten,et al.  The KICK-OFF of 6G Research Worldwide: An Overview , 2021, 2021 7th International Conference on Computer and Communications (ICCC).

[29]  Partha Pratim Ray,et al.  A perspective on 6G: Requirement, technology, enablers, challenges and future road map , 2021, J. Syst. Archit..

[30]  Song Ci,et al.  Adaptive and Dynamic Security in AI-Empowered 6G: From an Energy Efficiency Perspective , 2021, IEEE Communications Standards Magazine.

[31]  Mohsen Guizani,et al.  A Vision on 6G-Enabled NIB: Requirements, Technologies, Deployments, and Prospects , 2021, IEEE Wireless Communications.

[32]  Jukka Riekki,et al.  Collaborative Cross System AI: Toward 5G System and Beyond , 2021, IEEE Network.

[33]  Yanxia Xing,et al.  Capability Exposure Vitalizes 5G Network , 2021, 2021 International Wireless Communications and Mobile Computing (IWCMC).

[34]  Chunguo Li,et al.  Several Key Technologies for 6G: Challenges and Opportunities , 2021, IEEE Communications Standards Magazine.

[35]  Muddesar Iqbal,et al.  6G Vision: Toward Future Collaborative Cognitive Communication (3C) Systems , 2021, IEEE Communications Standards Magazine.

[36]  Weihua Zhuang,et al.  AI-Native Network Slicing for 6G Networks , 2021, IEEE Wireless Communications.

[37]  Sangheon Pack,et al.  A Credible Service Level Agreement Enforcement Framework for 5G Edge , 2021, IEEE INFOCOM 2021 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS).

[38]  Paris Carbone,et al.  NeuroRAN: Rethinking Virtualization for AI-native Radio Access Networks in 6G , 2021, ArXiv.

[39]  Lei Guo,et al.  Extensive Edge Intelligence for Future Vehicular Networks in 6G , 2021, IEEE Wireless Communications.

[40]  J. Crowcroft,et al.  Toward Native Artificial Intelligence in 6G Networks: System Design, Architectures, and Paradigms , 2021, ArXiv.

[41]  Hans D. Schotten,et al.  An Abstracted Survey on 6G: Drivers, Requirements, Efforts, and Enablers , 2021, ArXiv.

[42]  Bin Han,et al.  The Road Towards 6G: A Comprehensive Survey , 2021, IEEE Open Journal of the Communications Society.

[43]  Victor C. M. Leung,et al.  Net-in-AI: A Computing-Power Networking Framework with Adaptability, Flexibility, and Profitability for Ubiquitous AI , 2021, IEEE Network.

[44]  Bo Yang,et al.  Edge Intelligence for Autonomous Driving in 6G Wireless System: Design Challenges and Solutions , 2020, IEEE Wireless Communications.

[45]  Chunxiao Jiang,et al.  Machine Learning for 6G Wireless Networks: Carrying Forward Enhanced Bandwidth, Massive Access, and Ultrareliable/Low-Latency Service , 2020, IEEE Vehicular Technology Magazine.

[46]  Xianbin Wang,et al.  An intelligent self-sustained RAN slicing framework for diverse service provisioning in 5G-beyond and 6G networks , 2020 .

[47]  Lexi Xu,et al.  A Novel 5G Core Network Capability Exposure Method for Telecom Operator , 2020, 2020 IEEE Intl Conf on Parallel & Distributed Processing with Applications, Big Data & Cloud Computing, Sustainable Computing & Communications, Social Computing & Networking (ISPA/BDCloud/SocialCom/SustainCom).

[48]  Rakesh Kumar Jha,et al.  A Survey on Beyond 5G Network With the Advent of 6G: Architecture and Emerging Technologies , 2020, IEEE Access.

[49]  Yong Xiao,et al.  Towards Self-learning Edge Intelligence in 6G , 2020, ArXiv.

[50]  Harish Viswanathan,et al.  6G Architecture to Connect the Worlds , 2020, IEEE Access.

[51]  Faqir Zarrar Yousaf,et al.  How Should Network Slice Instances Be Provided to Multiple Use Cases of a Single Vertical Industry? , 2020, IEEE Communications Standards Magazine.

[52]  Hans D. Schotten,et al.  Platoon-assisted Vehicular Cloud in VANET: Vision and Challenges , 2020, ArXiv.

[53]  Fredrik Tufvesson,et al.  6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities , 2020, Proceedings of the IEEE.

[54]  Yiqing Zhou,et al.  Service-aware 6G: An intelligent and open network based on the convergence of communication, computing and caching , 2020, Digit. Commun. Networks.

[55]  Marja Matinmikko-Blue,et al.  How could 6G Transform Engineering Platforms Towards Ecosystemic Business Models? , 2020, 2020 2nd 6G Wireless Summit (6G SUMMIT).

[56]  Tarik Taleb,et al.  Service Function Chaining in 5G & Beyond Networks: Challenges and Open Research Issues , 2020, IEEE Network.

[57]  David Fernández,et al.  NFV and SDN-Based Differentiated Traffic Treatment for Residential Networks , 2020, IEEE Access.

[58]  Maria Toeroe,et al.  Automated Design of Network Services from Network Service Requirements , 2020, 2020 23rd Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN).

[59]  Jun Zhao,et al.  Artificial-Intelligence-Enabled Intelligent 6G Networks , 2019, IEEE Network.

[60]  Jun Wu,et al.  A Survey on Green 6G Network: Architecture and Technologies , 2019, IEEE Access.

[61]  Romano Fantacci,et al.  Highly Flexible RAN Slicing Approach to Manage Isolation, Priority, Efficiency , 2019, IEEE Access.

[62]  Jianwei Wang,et al.  6G Technologies: Key Drivers, Core Requirements, System Architectures, and Enabling Technologies , 2019, IEEE Vehicular Technology Magazine.

[63]  Melike Erol-Kantarci,et al.  AI-Enabled Future Wireless Networks: Challenges, Opportunities, and Open Issues , 2019, IEEE Vehicular Technology Magazine.

[64]  Lan Zou,et al.  5G Management and Orchestration Architecture Framework , 2019, J. ICT Stand..

[65]  Bin Han,et al.  A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System , 2019, IEEE Access.

[66]  Wei Chen,et al.  The Roadmap to 6G: AI Empowered Wireless Networks , 2019, IEEE Communications Magazine.

[67]  Shunliang Zhang,et al.  An Overview of Network Slicing for 5G , 2019, IEEE Wireless Communications.

[68]  Sundeep Rangan,et al.  Towards 6G Networks: Use Cases and Technologies , 2019, ArXiv.

[69]  Somya Garg,et al.  Automated Cloud Infrastructure, Continuous Integration and Continuous Delivery using Docker with Robust Container Security , 2019, 2019 IEEE Conference on Multimedia Information Processing and Retrieval (MIPR).

[70]  Ömer Bulakci,et al.  End-to-End Data Analytics Framework for 5G Architecture , 2019, IEEE Access.

[71]  Lars Hvam,et al.  The Use of Design-science to Define Information Content Requirements for IT Service Catalogs , 2018, 2018 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM).

[72]  Cees T. A. M. de Laat,et al.  Trustworthy Cloud Service Level Agreement Enforcement with Blockchain Based Smart Contract , 2018, 2018 IEEE International Conference on Cloud Computing Technology and Science (CloudCom).

[73]  Toktam Mahmoodi,et al.  Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges , 2018, Comput. Networks.

[74]  Bin Han,et al.  Edge-Assisted Congestion Control Mechanism for 5G Network Using Software-Defined Networking , 2018, 2018 15th International Symposium on Wireless Communication Systems (ISWCS).

[75]  Klaus David,et al.  6G Vision and Requirements: Is There Any Need for Beyond 5G? , 2018, IEEE Vehicular Technology Magazine.

[76]  Bin Han,et al.  The Structure of Service Level Agreement of Slice-based 5G Network , 2018, ArXiv.

[77]  Petar Popovski,et al.  5G Wireless Network Slicing for eMBB, URLLC, and mMTC: A Communication-Theoretic View , 2018, IEEE Access.

[78]  Bin Han,et al.  Network Slicing in 5G Mobile Communication Architecture, Profit Modeling, and Challenges , 2017, ArXiv.

[79]  Navid Nikaein,et al.  Towards enforcing Network Slicing on RAN: Flexibility and Resources abstraction , 2017 .

[80]  Tarik Taleb,et al.  Service Function Chaining in Next Generation Networks: State of the Art and Research Challenges , 2017, IEEE Communications Magazine.

[81]  Honggang Zhang,et al.  Network slicing as a service: enabling enterprises' own software-defined cellular networks , 2016, IEEE Communications Magazine.

[82]  Andre Beliveau,et al.  Service Function Chaining Architecture , 2013 .

[83]  Xiangming Wen,et al.  Open Wireless Network Architecture in Radio Access Network , 2013, 2013 IEEE 78th Vehicular Technology Conference (VTC Fall).

[84]  H. Selbmann,et al.  Learning to recognize objects , 1999, Trends in Cognitive Sciences.

[85]  H. Schotten,et al.  The Road to Trustworthy 6G: A Survey on Trust Anchor Technologies , 2023, IEEE Open Journal of the Communications Society.

[86]  Mohammad Asif Habibi,et al.  Mapping the VNFs and VLs of a RAN Slice Onto Intelligent PoPs in Beyond 5G Mobile Networks , 2022, IEEE Open Journal of the Communications Society.

[87]  A. Ksentini,et al.  Deep Learning for B5G Open Radio Access Network: Evolution, Survey, Case Studies, and Challenges , 2022, IEEE Open Journal of the Communications Society.

[88]  Jianjin Deng,et al.  Research6GRequirements, Vision, and Enabling Technologies—Review The SOLIDS 6G Mobile Network Architecture: Driving Forces, Features, and Functional Topology , 2022 .

[89]  Petri Ahokangas,et al.  Value Creation and Capture From Technology Innovation in the 6G Era , 2022, IEEE Access.

[90]  Andrei Gurtov,et al.  The Roadmap to 6G Security and Privacy , 2021, IEEE Open Journal of the Communications Society.

[91]  Navid Nikaein,et al.  Network Slicing for TSN-Based Transport Networks , 2021, IEEE Access.

[92]  Won-Joo Hwang,et al.  Survey on 6G Frontiers: Trends, Applications, Requirements, Technologies and Future Research , 2021, IEEE Open Journal of the Communications Society.

[93]  Ricardo Flores Moyano,et al.  Enhancing a 5G Network Slicing Management Model to Improve the Support of Mobile Virtual Network Operators , 2021, IEEE Access.

[94]  Hans D. Schotten,et al.  Towards a Fully Virtualized, Cloudified, and Slicing-Aware RAN for 6G Mobile Networks , 2021, Computer Communications and Networks.

[95]  André Bourdoux,et al.  Convergent Communication, Sensing and Localization in 6G Systems: An Overview of Technologies, Opportunities and Challenges , 2021, IEEE Access.

[96]  Diego Lopez,et al.  Service Function Chaining Use Cases in Mobile Networks , 2019 .

[97]  Tarik Taleb,et al.  Traffic Steering for Service Function Chaining , 2019, IEEE Communications Surveys & Tutorials.

[98]  Hans-Peter Fröschle.  DevOps , 2017, HMD Praxis der Wirtschaftsinformatik.

[99]  IMT Vision – Framework and overall objectives of the future development of IMT for 2020 and beyond M Series Mobile , radiodetermination , amateur and related satellite services , 2015 .