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Question 20

IMT-2020: Network requirements and functional architecture

(Continuation of Question Q20/13)

The objective of the development of IMT-2020 is to address the anticipated needs of users of mobile services in the years 2020 and beyond. The vision and service scenarios will have been identified by related SDOs (ITU-R, 3GPP, NGMN, etc.), e.g., Enhanced Mobile Broadband, ultra-reliable and low latency communications, massive machine type communications.

IMT-2020 systems will differentiate themselves from fourth generation (4G) systems not only through further evolution in radio-interfaces but also through greatly increased flexibility end-to-end. On one hand, requirements on service scenarios should be met by IMT-2020 function design. On the other hand, this end-to-end flexibility will bring the challenge to architecture and functional design of IMT-2020 considering diverse service requirement. And it comes in large part from the incorporation of network softwarization into every component. Well known techniques such as NFV, SDN will together allow unprecedented flexibility in the IMT-2020 system. Such flexibility will enable many new capabilities including network slicing.

This question focuses on the study of the requirements, capabilities, architecture and key technologies to realize the IMT-2020 network. And the ecosystem from business models and use cases should be promoted to build and realize the better cooperation with mobile customers. Open source projects should also be utilized and guide to meet the requirement of IMT-2020 network.

Study items to be considered include, but are not limited to:

Tasks include, but are not limited to:
An up-to-date status of work under this Question is contained in the SG13 Work Programme.


Recommendations: Questions: Study Groups: Standardization bodies: