Page 159 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 3

Figure 7.2-2 – Elastic OADM Ring

Table 7.2-2 – Elastic OADM Ring

Items Descriptions
Overview In this case, elastic OADM can provide the bandwidth per wavelength to adjust the capacity of
mobile backhaul. The wavelength with suitable bandwidth is given to each slice.
Benefits – The optical bandwidth even over 40 Gbps can be flexibly allocated to each slice on demand.
Challenges to – Large capacity transmission (D.7.1)
be clarified – Power saving by sleep or rate control (D.7.4)
– Reliability and resiliency (D.7.6)

As the all challenges shown in Table 7.2-2 are covered in Table 7.1-1, it can be said that the functions listed
in 7.1 are mostly enough to realize this use case.

Use Case 3: Virtual BBUs
The third example adoption of the network slicing on the FH/BH is the virtual BBU. Figure 7.2-3 shows an
example of this use case. In this case, various generations BBUs and various operators BBUs can be
implemented by software on the same hardware. The overview, benefits and challenges to be clarified are
shown in Table 7.2-3.

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