Name: 5G網絡切片：5G傳輸切片的自動化、保障和優化 (5G network slicing: automation, assurance and optimization of 5G transport slices)
Uploaded: 2021-01-14T08:35:36.000Z
Duration: 5 min 57 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

I'm a product line manager (PLM) at Nokia.

I'm responsible for the carrier-assist solution for 5G network slicing.

In today's talk we are going to talk about the 5G network slicing

and how the carrier-assist solution can be used for automation,

assurance, and optimization of transport slices.

Network slices are an end-to-end concept as is shown here,

Operator Y has three customers: BMW, Fiat and Public safety,

end-to-end individual, independent, logical networks.

Each of these networks are called network slices,

the color represents the SLA requirement for each of them.

In this example, Operator Y created five network slices.

It contains RAN slices, each of the network slices

contain RAN slices, which is a context in your RAN,

core slices, which is a context and personality in core,

and transport slices which are the connectivity between RAN and core.

RAN controller, core controller, transport controller,

Let's get back to the Network and see how, for example,

the green Infotainment slice is created in this network.

The logical flow is, I have a customer, Honda,

who needs an end-to-end network slice for Infotainment

The customer portal sends a request to the Operator.

And the Operator uses its network slice blueprints,

or templates, to generate a network slice profile.

And after that it goes through various decompositions,

triggering various actions in the network.

The first thing it does, it sends a request to NFVO,

which is creating the virtual RAN, virtual core,

The second portion is, it sends a request to

the RAN controller to create the RAN slice,

and give the personality to the RAN equipment.

By the same token, it sends a request to the 5G core controller

to create the core slice which is a personality in the core.

And last, but not least, it sends a request

to create the connectivity between this, RAN and core.

At this point, it's stitching all these slices,

creating a single end-to-end network slice for a specific customer

which is from the service type that is explained before.

The role of the carrier-SDN solution from Nokia

is to control for the transport slice, as is shown in this picture.

Interface for 4 and 5 are defined in 3GPP

and interface 6, that is not defined in any

Standardized Development Organizations (SDOs) yet

and Nokia is working towards making that one standard as well.

This is the network that I am going to use for a portion of the demo.

I have a transport network which is connecting the RAN to the core.

Network Service Platform (NSP) as a transport slice controller,

monitoring of the transport slices, and optimization.

but these are the three important use cases

that should be addressed by any transport slice controller.

During the demo, NSP receives various connectivity APIs from the northbound,

during the demo POSTMAN is simulating those APIs

The transport slice controller intelligently receives that message,

and creates the services, tunnel and LSP,

This is NSP Launchpad Service Fulfillment,

and IP/MPLS Optimization and Service Supervision application

are used in the context of transport slices.

for the Honda Infotainment. The service time and S-NSSAI is 10 and 20,

how NSP is used for the monitoring of the transport slices.

When we inject the latency of 20 milliseconds

for the IGP link we will see the latency is changed.

And we will see momentarily that readout happen in the network,

in other words NSP intelligently monitors transport slices

If I put the latency back to 2 milliseconds again,

nothing will happen because, in this case, the path is still valid,

unless I go to the readout and after readout

we will see that the NSP again brings back the original path of the LSP.

In summary, carrier-SDN solution from Nokia

is addressing the 5G transport slice in three important areas:

automation or creation of the transport slices,

assurance or monitoring of the transport slices,

These are the three main important aspects that should

be addressed with any transport slice controller.

Thank you for your attention, and hopefully I see you later.

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5G網絡切片：5G傳輸切片的自動化、保障和優化 (5G network slicing: automation, assurance and optimization of 5G transport slices)

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