Page 143 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 3

Operator X is local area network operator (for example, inside residential, commercial, or industrial property)
operating small cells in frequency F2 inside such local area. It can be part of a company that owns or maintains
the local area. Operator X is aiming at providing specific services inside the local area and is not visible
outside it.

The motivation for using operator X is as follows. Small cells of operator X may have better coverage inside
this specific local area than small cells of operator A. And/or small cells of operator X are capable of
supporting one or several sets of QoS requirements tailored for specific classes of applications compared to
micro cells of operator A (for example, tailored for high data rate or low latency applications).
6.4.6.3 Current considerations

Two options to provide a connection to a UE in the deployment scenario described in 6.4.6.2 are currently
considered as shown in Figures 6.4.6-2 and 6.4.6-3. These options are motivated by an assumption that
operator X will not have fully capable core network supporting all functions. As a result, for some applications
operator X will have to outsource control to the core network of operator A. Also, it shall be noted that each
option is for one application only. If several applications are running on a UE, a combination of two options
can be used.

CN A Simplified CN X

A, F1
X, F2
A, F2

Selection

Figure 6.4.6-2 – Connection option 1

In option 1, the macro cell of the large area operator A is used for control information. Small cell of the large
area operator A or small cell of the local area operator X is used for data. Selection is based, for example, on
coverage, required QoS, etc. for a specific network slice.

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