Virtualization crucial for 5G: ETRI

06 Jun 2014

5G isn’t just about faster mobile data speeds – it also requires network virtualization, because existing 4G core networks just aren’t going to cut it.

That’s the view of Korean R&D organization ETRI, which views virtualization and cloud as the keys to solving the overall problem of revenues being decoupled from data growth.

Kim Yeonglin, CTO/managing director for the wired and wireless convergence research department of ETRI, says that 5G will sport three chief characteristics: “Users will be surrounded by devices, services will be user/context aware, and networks will follow users wherever they go.”

Consequently, he said, 5G needs to be designed to deal with the main problem faced by mobile operators: namely, the unsustainable situation of operating separately managed networks (3G, 4G, Wi-Fi and in many cases fixed-line), which is insanely complex, expensive to run and pretty much impossible to scale as traffic demand grows – especially with most data traffic being crammed through the same packet gateway.

“We doubt that the current 4G core architecture will work,” Kim said at the SDN & Openflow Asia-Pacific Congress on Thursday.

Kim said virtualization technologies like SDN and NFV will be crucial to the vision of 5G as a virtualized network where wireline, wireless, network computing and storage are converged onto a 5G core served by software-defined resources.

In terms of other technologies in the 5G arsenal, ETRI is also looking at technical radio access solutions like millimeter-wave and sub-6 GHz, as well as “moving small cell” technologies that enable devices to double as base stations.

Kim also said that ETRI is looking at IP-over-DWDM as a transport architecture for 5G, since optical will play a important role to help reduce latency”.

Related content

No Comments Yet! Be the first to share what you think!

This website uses cookies

This provides customers with a personalized experience and increases the efficiency of visiting the site, allowing us to provide the most efficient service. By using the website and accepting the terms of the policy, you consent to the use of cookies in accordance with the terms of this policy.