Why is 5G network still unable to replace 4G soon?


Together, we will explore and eliminate some unnecessary misunderstandings about 5G mobile networks in this article.

The next generation of mobile networks that stand out with high-speed access and are called 5G, are now available in parts of the U.S. and countries like South Korea, the United Kingdom and Australia. In Vietnam, some carriers have started to test 5G on a small scale. Starting from September 21, Military Industry and Telecommunications Group (Viettel) has launched 5G broadcast and put into operation the infrastructure of connecting things (IoT) in Ho Chi Minh City. But before this mobile network became popular, there were still many misconceptions surrounding it and its new technology.


These confusion can be understood, 5G will have a great impact on the mobile ecosystem and IoT worldwide, so there are still many questions to be asked. When 5G begins widespread rollout next year and is expected to reach 1 billion users by 2023, 5G networks will play a role in changing the game and creating momentum for other technologies like self-driving cars. driving, drones and IoT.

To understand more about 5G, let's clarify some of the misconceptions about this new cellular technology through CNET's article below:

Is 5G safe?
One of everyone's biggest concerns about 5G is whether or not the radio frequency of this mobile network is safe, as it is rumored to create radiation and cause cancer. This concern may stem from a 2011 World Health Organization (WHO) report that mobile radiation should be listed as "possibly carcinogenic to humans." Even a US government-funded study in 2016 found a link between radiation of radio frequencies (used in mobile networks) and cancer in mice, and cell phones. It is common for an iPhone or Samsung Galaxy to be detected as having an amount of radiation that exceeds the radiation frequency threshold set by the US Federal Communications Commission (FCC).

But it seems the link between cancer and the phone is overstated, because even diesel fuel, aloe vera, and fried and fried foods every day are at risk of causing cancer. In particular, the 2016 study mentioned above also shows that male mice have radiation levels that humans encounter when using the phone.

Although it is still too early to confidently ignore the warnings about the impact of mobile signals in general and 5G networks in particular for human health, this concern can be temporarily put aside for now. has just concluded that no evidence has been found for devices using 5G technology for human health, including devices using low-frequency frequencies.

Will 5G replace 4G and will you need a new phone that supports this technology?
While you will certainly need a 5G-enabled phone to use the 5G network, that doesn't mean you have to switch to a 5G phone to take advantage of its speed benefits. In fact, even with 5G coming out, you can experience 4G connectivity faster than before. In addition, 5G will not completely replace 4G, instead it will be built on existing 4G networks.

Expected, major carriers in the US and around the world will need a lot of time to deploy 5G networks on a national scale and even if 5G support in your area, your phone is not yet available. is outdated and works perfectly well with 4G networks that are working in tandem with 5G in that area.


5G is faster, but it's not something you have to follow

But will my current phone access faster?
According to a report by the Mobile Association of GSMA Intelligence, it is expected that by 2025 there will be about 15% of mobile devices connected to 5G networks globally. At the same time, the 4G network will increase its presence from 43% in 2018 to 59% in 2025. In short, 5G will not completely replace 4G networks, similarly when 4G launches cannot replace it. 3G completely.

In addition, 4G network users will probably notice faster mobile network access when 5G is launched, which is because of this paradox for two reasons: dynamic spectrum sharing (DSS). and carrier (hybrid waves). Launched in the United States next year, DSS technology allows carriers to share the band for 4G and 5G, when people switch to the 5G "lane", the 4G lane will open to smart home appliances or devices. Mobile devices are still stuck in 4G, when more people leave the 4G lane, its bandwidth and speed will also increase.

According to the network operators, this pooling creates an "enormous" performance and capacity. Besides, 5G is also built on 4G technology, so you will have the opportunity to experience lower 4G latency (also known as the time of your phone when pinging the network and receiving network feedback) when the network operators develop 5G wave.

Will 5G force you to use unlimited data plans?
Most likely. Currently in the US, Verizon has four unlimited plans and three of them come with a 5G subscription and an additional $ 10 per month compared to other packages. To experience 5G on the Sprint network is similar, and T-Mobile (expected to merge with Sprint) said its 5G service will be unlimited with capacity but not much more expensive than existing 4G package. While AT & T's 5G network in the US is currently for businesses only. In Vietnam, operators have not implemented 5G yet, but it is expected that with high speed of access and expensive cost, there will be certain constraints on 5G packages.

In general, 5G packages will be more expensive and don't expect carriers to share transparency about these new packages. According to CNET, "4G networks are no longer too expensive to launch and you only need to buy a mid-range phone or more to take advantage of 4G. But this may change over time, Since the launch of 4G, carriers have no longer dared to offer unlimited 4G packages (in both speed and capacity).

Can 5G allow you to stream videos at the highest quality?
It is not necessarily a 5G network, because it depends on your video streaming service provider and subscription plan. For example, if you are watching movies on Netflix with the basic package (about 180,000 VND / month), you can only watch in Full HD quality, while if you subscribe to a premium plan (and more expensive) then Can watch with 4K content. Not to mention, if your device has a Full HD screen only, the viewing of higher resolution content will not make much difference.

Will 5G allow remote surgery deployment or promote autonomous vehicles?
Back at MWC 2019 earlier this year, we had the opportunity to witness what was promoted as the "first surgery via 5G network" with the participation of a consultant and a surgeon from another location. . Doctors were able to indirectly guide and draw patients' regimens in real time to help the surgeon handle the case.

While all surgeries don't always take advantage of the 5G network, it can be seen that it will help improve remote surgical counseling and support when needed. This is particularly useful for doctors in remote or under-skilled areas where complex surgeries are needed, but deploying 5G networks in these areas will be a challenge. No small in the near future.

5G can bring different benefits to each industry in different ways, from real-time topographic mapping to the delivery of complex information from high-speed sensors, which can be Application in augmented reality (AR) technology, autonomous vehicles or nuclear accelerators.

Will 5G really erase the digital gap?
This is incorrect! While the United States and some major countries such as the United Kingdom, Japan, South Korea, China, Russia and Australia are leading the way in deploying 5G networks, the transition from 4G to 5G is still operating in parallel. That means most will still use 4G for a longer period of time, while in remote areas, the wired internet access is still not very convenient, 3G network access sometimes remains. luxury, let alone 4G or 5G, where mobile waves are hard to reach due to complex geographical locations.