Page 207 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 3

7.1 High Level Network Management Requirements for IMT-2020 based on ITU-T

Regarding to Recommendation principles for a telecommunications management network M.3010 [1], eNMS
provides;
– To exchange management information across the boundary between the eNMS environment;
– To convert management information from one format to another so that management information
flowing within the eNMS environment has a consistent nature;
– To transfer management information between locations within the eNMS environment
– To analyse and react appropriately to management information;
– To manipulate management information into a form is useful and/or meaningful to the
management information user;
– To deliver management information to the management information user and to present it with the
appropriate representation;
– To ensure secure access to management information by authorized management information user;
– To achieve technology independence based on requirements and to be extendable to include
prominent and available management technologies in its implementations, as appropriate;
CMS for IMT-2020 means network management system unifying fixed and mobile network. eNMS for
IMT-2020 provides:
– An architecture made of operations system and network elements and the interface between them.
• To solve the traffic explosion and latency requirement of application, the enhanced mobility
architecture is required
• More flexible and optimized multi-RAT interworking architecture should be studied, which may
also affect the design of new architecture.
• Standard OAM protocols are required because parts of IMT networks such as fronthaul network
aren’t standardized yet.
– The methodology to define interface.
• To make more flexible and resilient, upgrades of session or bearer management and network
slice are included.
• To improve the robustness of the network and throughput, multi-connectivity is required.
– Other architecture tools such as logical layered architecture that help to further refine and define the
management architecture of a given management area.
• To support a true fixed and mobile convergence ensuring a seamless user experience within the
fixed and mobile domains, it is required to interwork with other radio access networks in fixed
broadband access network.
– A number of generic and/or common management functions to be specialized/applied to various and
specific ITU-T TMN interfaces.
• Existing signaling procedure is heavy and not optimized for emerging new services, so the
mobility management is required.
– To optimize softwarization in mobile network, functions in SDN solution are required.

7.2 Functional Network Management Requirement for IMT-2020
NOTE – For further study.

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