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The 5G network in Vietnam does not require users to switch simulations like when switching from 3G to 4G in the past, as it was developed on an available 4G platform.
Vinaphone, Viettel and Mobifone have started commercial testing of 5G networks in Vietnam since November. All three operators have built 5G based on the existing 4G platform. In technical terms, this is a 5G NSA network.
5G NSA and SA network operating model. Image: Iplook
Operators all over the world implement 5G in two ways: 5G NSA (non-independent) – 5G non-independent network and 5G SA (independent) – 5G independent network. Not only in Vietnam, many countries also implement 5G NSA, such as the United States, France, Australia, the United Kingdom, Switzerland, Spain …
The 5G NSA network is compatible with the existing 4G LTE infrastructure. With this model, the new 5G stations will connect to the old 4G core network to operate. The implementation of the NSA will help to take advantage of the available coverage area, as well as the devices in the 4G base stations. As a result, the initial cost is much lower and the implementation time and installation are significantly faster.
In the NSA model, the access speed, including download and upload, is not significantly different from the 5G SA network. The downside is the higher latency compared to the standalone 5G SA network model. However, this latency is still lower than the current 4G LTE network and does not affect most of the current usage demand of the average user.
With the 5G NSA network, the carrier network still performs subscriber authentication through the 4G platform. Because the method is not changed, users can always use the old 4G SIM to use on the new 5G network. This is also a great advantage that makes it easier for users to access and experience new mobile network technology.
The 5G NSA network still guarantees gigabit upload speeds.
The 5G SA network is the destination of operators when they start to implement 5G. The use of a new terminal architecture with millimeter waves and sub-GHz frequencies takes this mode out of the existing 4G LTE infrastructure. SA uses advanced mobile broadband eMBB with super fast speeds and extremely low latency. Furthermore, by using 5G SA with gigabit speed, the data usage costs that users have to pay will also be lower.
According to the Aleppo, All operators will start with NSA networks and switch to SA architecture when demand is great enough and has enough time for the installation of 5G central stations. Currently, 5G devices are not very popular, so the demand for SA-based architecture is still quite small.
In the future, the convergence of NSA and SA will help operators move to a full 5G network. All the original 5G phones had good support for 5G NSA networks and would have been around for at least a decade before the SA architecture was completely replaced.
Tuan hung
