Page 82 - ITU-T Focus Group IMT-2020 Deliverables

3 ITU-T Focus Group IMT-2020 Deliverables

6.1.1.2.1.1 Solution 1.1: Slice selection solution update

(Source: Nokia, Alcatel-Lucent Shanghai Bell)
This is a solution for key issue on support for network slicing. In this solution the concept of Non-Autonomous
Core Network Slice is introduced, whereby a UE related NG2 and NAS signalling are handled by a common
Frontend as shown in Figures 6.1.1-1. Figure 6.1.1-1 is depicting the concept of Non-Autonomous Network
Core network Slice. A Non-Autonomous Core network slice is sharing with other slices for the same UE the
NG2 and NAS signalling handling, supported by a common front end for the UE.

Figure 6.1.1-2 – Non-Autonomous Core Network Slice concept

With the Non-Autonomous Core network Slice concept, once the UE is assigned to a Frontend during the
attach procedure, all the signalling is directed to this frontend based on the UE Temporary ID.

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