Page 106 - 5G Basics - Core Network Aspects

1 Core network aspects

In this example, the system images can be moved without any interruption from LINP 1 to LINP 2
according to the user's demand, application type, and other reasons. Furthermore, both system
images and resources can be added to LINP 1, and removed from LINP 2 in order to achieve high
network performance and energy saving. Therefore, the LINP manager should handle the mobility
of system images and resources between LINPs.
– When?
• Network service provider requires these services now.

II.3.2 Current status of technology

There is a technology called live migration which allows a user to move a running virtual machine from one
physical machine to another.

II.4 Case 4: Wireless access network virtualization

II.4.1 Use case
– Who?
• Mobile network operator (MNO) who provides the end-to-end access and mobile services

– To whom?
• Another MNO or a mobile virtual network operator (MVNO) who leases mobile network service
from MNOs
– Why?
• Future wireless networks will consist of multiple heterogeneous access technologies and each
access technology has its own beneficial characteristics such as data rates, network capacity,
coverage area and protocols as well. For these reasons, future wireless networks have a new
challenge to provide the interworking and harmonization among heterogeneous networks.
– What?
• Wireless network is also one of the resources in a virtualized network. Therefore, partitioning
and aggregation, which are the applicability of network virtualization, should be reflected to
the future wireless access networks.
The use cases of wireless access network virtualization are as follows:
Figure II.3 shows the use cases of partitioning and aggregation of wireless access network
virtualization.

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