What does Viettel say when 5G speed is sometimes faster, sometimes slower than 4G?

Viettel has been commercializing 5G in many provinces and cities across the country for the past 9 days. When using and measuring the speed, the signal is not very fast at times, but almost no different from 4G, even mobile devices cannot catch 5G at home or in the workplace.

Regarding this issue, Mr. Hoang Duc Thanh - Viettel Group Telecommunications Engineer pointed out the reason, when measuring at the station, if there is only 1 device performing 5G speed, it can reach 300-400Mbps, or even up to 500Mbps. But the number increases or decreases depending on the measurement location and the routing server being checked, and the number of people using it at the same time.

Mr. Hoang Duc Thanh - Telecommunications Engineer, Viettel Group.

During the measurement process using the 5G speed test application (speed test and i-speed network speed measurement application), if there is only 1 measuring device, the 5G BTS station will devote all resources to the only subscriber, so when standing near the station and having 1 measuring device, the speed will be very high.

"If there are many 5G devices accessing the same 5G BTS station, it will lead to resource sharing, which will make users feel slower, even slower than 4G," Mr. Thanh commented.

Sharing the same opinion, Ms. Nguyen Thi Tam - Deputy Director of Viettel Network Corporation also pointed out another reason, "the testing software has an algorithm that automatically selects the nearest servers to test, however, there are some old configuration servers, and in the case of continuously low test speed, the 5G system may have an error and a technician will check.

However, in reality, in addition to the speed test, which will pull all the traffic of a station to measure the speed, in reality, with the normal needs of users such as browsing the web, watching Youtube or watching videos online, only need a bandwidth of 5-7Mbps to be able to watch on FullHD resolution.

Viettel's 5G deployment process in the past 9 days also shows that usage traffic has increased very rapidly. Nationwide, 5G traffic is only 5% of 4G traffic. However, in urban areas alone, 5G traffic is nearly 15%, and the number of people accessing 5G at the same time is also increasing rapidly.

Regarding the roadmap for 5G coverage in Vietnam, a Viettel representative said that the network is prioritizing deployment in urban areas. Accordingly, more than 6,500 5G broadcasting stations have been installed, covering 95% of the outdoor population.

By 2025, the network operator will continue to expand indoor coverage. According to the plan for the next 3-5 years, users in urban areas, tourist areas, and industrial and processing zones can use indoor 5G networks similar to the current 4G experience.

"If we compare Vietnam with ASEAN countries in the 5G race, in the next 1-2 years, Vietnam will be on par with Thailand, or even ahead," affirmed Ms. Nguyen Thi Tam - Deputy Director of Viettel Network Corporation.

Mr. Nguyen Van Son, Director of Viettel Telecom Mobile Center.

Sharing about the issue of users reflecting on whether 5G consumes more data than 4G for the same usage needs, Mr. Nguyen Van Son, Director of Viettel Telecom Mobile Center, affirmed that 5G does not consume more data than 4G if using tasks and content with the same quality, especially with basic user needs such as accessing social networks and downloading documents.

Some of the reasons pointed out by the representative of Viettel Telecom Mobile Center may be that users can experience some services that require super-fast speeds that 4G previously had difficulty meeting, such as watching 4K high-resolution videos and using AR/VR virtual reality applications.

Chi Hieu

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