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Wu Hequan, academician of Chinese Academy of Engineering: 5g technology is very immature and its operation cost is very high

via:博客园     time:2020/10/16 10:15:17     readed:637

According to domestic media reports, on October 15,2020, during the China International Information and Communications Exhibition, academician Wu Hequan of the Chinese Academy of Engineering presented a question at the IMT-2020(5G) conference main forum

Wu Hequan said the epidemic has fuelled demand for five G, and the national new infrastructure strategy has accelerated the construction of five G. During the first anniversary of the fifth G of business, we need to face up to the existing problems while seeing the achievements, mainly by:

With regard to the maturity of 5g, he said that mobile communication technology is always in constant improvement. Basically, it is a generation in a decade, and the first few years of each generation are the process of technology maturity. Therefore, it is obvious that 5g technology is not mature enough at the beginning of commercial application.

Regarding the energy consumption of 5 G, the energy consumption per base station is about 2~3 times of 4 G. Therefore, the total energy consumption of 5 G base stations may be about 4~9 times of 4. The actual 5 G does not have to reach full coverage of 4 G, and the 5 G deployment will use macro station microstation.

Therefore, in terms of energy efficiency, 5g has high energy consumption, but it supports large capacity. According to calculation, the energy efficiency of 5g is 27 times that of 4G, so it is worthwhile from the perspective of energy efficiency.

As for the investment scale of 5g base station, if the number of 5g base stations is considered as 2.5 times of 4G, and the price of base stations is 2 times of 4G, the total investment of 5g base stations is 5 times of that of 4G.

But in fact, 5g mainly focuses on industry applications, and does not need to achieve the same scale coverage as 4G, so the investment can be saved.

China's 4G construction has experienced seven years of investment since 2013. At present, 4G users have accounted for 80% of the whole network mobile users. If 5g construction wants to reach the 4G user scale, the investment will take 8 years or even longer.

With regard to the five G return period, the ARPU value of five G users in South Korea is now 37% higher than that of four users, showing that the five G will exceed four G. in terms of income from consumer users

The cost of 5g network is 4-5 times of that of 4G, and the operation revenue will exceed 6 times of 4G. It can be considered that the return on investment of 5g is equivalent to that of 4G.

On October 14, Ding Yun, managing director of Huawei Technology Co., Ltd. and President of BG, an operator, also said at the China International Information and Communication Exhibition 2020 that China has built the largest 5g network in the world, but there is still a gap between China and foreign countries in terms of user experience, coverage and commercial closed-loop.

He says there are five G of user experiences in China

中国工程院院士邬贺铨:5G

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