From 4G to 5G, keys to digital transformation

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From 4G to 5G, keys to digital transformation

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The journey of digital mobile communications began with the inception of 2G technology in the 90s.
I personally witnessed it as the technology evolved from 2G to 3G, as well as 3G to 4G, throwing multiple challenges to network professionals as we sought to ensure service continuity while maintaining user experience targets.
More recently, with the inception of 5G technology, the approach of network standard replacement has vanished away.
5G technology primarily has two deployment strategies, refer to figure 1.
Non-Standalone (NSA) is the first version currently being used by all existing 5G networks.
The fact that 4G will remain the dominant technology by 2025 is not surprising, considering 3GPP standards for 4G is being developed and enhanced to LTE-advanced pro, which is often termed 4.9G (or the more dramatic “Road to 5G”).
This will lead us to a very interesting phase in the mobile communication industry and eventually to a very important question: “How should a CSP plan for 5G networks or most importantly how should it plan the transition from 4G to 5G technology?”.
Case 1 : Rakuten network in Japan will not initially offer 5G services.
Instead, it will leverage its 4G LTE network with macro and small cells.
: Rakuten network in Japan will not initially offer 5G services.
Instead, it will leverage its 4G LTE network with macro and small cells.
Case 2: US operator AT&T, from the current state of 5G deployments, is encouraging the upgrade of 4G networks to its most advanced versions.
Each of the above cases demonstrates that consolidating the existing LTE network and gradually making it 5G ready may be the most optimal and cost-effective way of evolving from 4G to 5G.
Additionally, the strength of the current 4G foundation depends on how seamlessly and smoothly content on LTE networks (primarily data-driven) is delivered to the end-users.
Evolving networks toward 5G is crucial to keeping up with the appetite for higher speeds and quality user experience

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