The following is the [XGNews]: The best way to predict the future is to create the future: China Unicom and Huawei promote 5g to ubiquitous Gigabit recommended by xgapn.com.
As one of the most “out of the circle” information and communication technologies, 5g is undoubtedly a bright color in this increasingly digital world. Global 5g business continued to accelerate, and it was on track in only two years; China’s 5g development leads the world, and has made remarkable achievements in network construction, user scale, traffic growth and other fields.
According to the latest data of the Ministry of industry and information technology, China has built 1.159 million 5g base stations, and the total number of 5g connections has reached 471 million, 1.9 and 1.4 times that at the end of last year respectively; 5g traffic has increased 10 times compared with the same period last year. The 5g diversion ratio of the first batch of key cities has increased from 3% at the beginning of the year to 20.7%, and is expected to reach 24% by the end of the year. More importantly, 5g is playing a more and more important role in changing public life and enabling thousands of industries.
5g network brings new experiences, new experiences give birth to new services, and new services put forward new requirements for the network. In such a process of mutual promotion and spiral rise, 5g development is also rapidly moving in depth. In the face of wider application scenarios, more diversified business models and better experience demands, how can 5g network be supported and where is the next development direction?
At the network innovation sub forum of the 2021 China Unicom Partner Conference, Chen chuanfei, President of Huawei wireless indoor digital product line, delivered a keynote speech on “innovation, 5g to ubiquitous Gigabit”. He stressed that building a high-quality 5g network throughout the whole network is the key to achieving higher quality development of 5g in China; It also puts forward a proposal to give full play to the advantages of C-band large bandwidth, “from one person Gigabit to everyone Gigabit, from hot Gigabit to full scene Gigabit, from urban Gigabit to urban and rural Gigabit, from downlink Gigabit to uplink and downlink dual Gigabit”, and make every effort to build 5g ubiquitous Gigabit network. From his speech, we may be able to see the future of 5g.
From one person Gigabit to everyone Gigabit
Gigabit experience is the basis for ensuring the continuous upgrading of user business experience. The good performance of 5g has led to the upgrading of TOC / tob service quality. “Second to see”, “second to play” and “second to understand” have become just needed.
Taking the video service as an example, its traffic has accounted for more than 60% of the total 5g traffic, and continues to evolve to high-definition. The high-definition video traffic of 720p and above accounts for more than 50% of the video traffic; The way users watch video has changed. At present, about 30% of users choose to play at double speed, while among “after 00” users, this proportion reaches 40%; The use of short video services is increasing. In the first half of this year, the per capita use time per day exceeded 2 hours, and the traffic has accounted for 40% of 5g network traffic. At the same time, short video is also evolving to high-definition and ultra-high definition.
Chen chuanfei pointed out that from one person Gigabit to everyone Gigabit, on the one hand, we should continue to consolidate the high-quality network foundation with the extensive deployment of massive MIMO; On the other hand, in some hot areas, it can be deployed through dual carrier aggregation, so as to achieve an impeccable continuous 5g experience.
Beijing Unicom has set a model for Renren’s gigabit network. Based on the 3.5GHz band, it quickly built a continuous coverage multi antenna 5g network in the fifth ring, and basically realized the full coverage of 200MHz dual carrier aggregation in the third ring. In May this year, Beijing Unicom and Huawei jointly held the “see you on the road” activity. Six heavyweight media tested multiple lines such as urban backbone lines, Winter Olympic lines, art lines and park lines, and the average downlink rate reached 1.8gbps in the 200MHz carrier aggregation area.
Facing the future development of users and traffic, Huawei is also constantly innovating m-mimo software algorithm, maximizing the use of power, spectrum and other resources, continuously improving the user experience and ensuring the consistency of the whole user experience. For example, the innovative powerboosting algorithm dynamically shares all power resources for the 5g dual carrier scenario, ensuring the consistent coverage and performance of each 5g cell. Through laboratory simulation, the average downlink experience rate can be increased by 5% ~ 20% under different PRB utilization.
From hot Gigabit to full scene Gigabit
According to the 5g city evaluation released by the ICT Institute in September this year, domestic key cities have basically completed 5g Gigabit experience coverage in the main urban area, with an average speed of 500 to 900mbps. On this basis, how can users get a Gigabit experience anytime, anywhere? From hot Gigabit to full scene Gigabit will be an important step.
Chen chuanfei said that in the process of 5g network construction and development, high-quality network deployment for typical traffic intensive scenarios has been able to well release the huge demand of users for mobile Internet. For example, in the Capital International Airport and Daxing airport, the 5g diversion of China Unicom has exceeded 40% compared with two months ago; In Beijing’s Universal Studios recently, “5G” has reached more than 50%.
For important indoor places, Huawei, in cooperation with China Unicom and other operators, pioneered the indoor distributed massive MIMO solution to improve the cell capacity and user experience, bring the Gigabit experience to the indoor scene, and superimpose the 300MHz large bandwidth to realize the large capacity of 4.7gbps in a single sector. At present, the scheme has been opened in Beijing National Theater, Beijing bird’s nest and Guangzhou metro line 18.
However, at the same time, there are still challenges in 5g coverage and traffic in a large number of scenarios at the current stage. For example, among the 6.75 million residential buildings in China, about 1.7 million are facing the problem of weak coverage, accounting for 25%, and there is a high drop in 5g traffic in 15% of the coverage areas. It is urgent to deepen the deployment of 5g coverage level and service quality, effectively divert and release the suppressed traffic demand of users.
Chen chuanfei pointed out that the copper cable between the source and the antenna is an important factor causing power loss and uplink user perception loss. The solution being developed by Huawei aims at this pain point. It is expected to ensure the 100Mbps downlink experience of users in residential areas, and reduce the power consumption by 70% compared with the traditional spotlight scheme.
From urban Gigabit to urban and rural Gigabit
The state attaches great importance to the construction of digital countryside, and the digital infrastructure represented by 5g is the focus. In the “14th five year plan” for the development of information and communication industry recently issued by the Ministry of industry and information technology, it is clearly required to promote the extension of 5g network to towns and villages, and achieve 80% 5g access rate in administrative villages by 2025; The white paper on China Unicom’s digital village also proposes to accelerate the new infrastructure of gigabit network and basically realize the full access of Gigabit Network in key towns and townships by 2025.
On the other hand, China’s rural mobile service demand and 5g penetration rate tend to be consistent with that of cities, and even video services account for more than half of mobile traffic, so there is an urgent need for experience upgrading.
Chen chuanfei said that in order to build an undifferentiated 5g experience between urban and rural areas and help build a digital village, Huawei has launched a new generation of green 5g base station metaaau after a long time of thinking and research and development. Through the introduction of a new architecture, the size of the antenna array has doubled, realizing both performance and green energy saving. The current network test conducted in Miyun, Beijing shows that compared with the traditional scheme, metaaau can simultaneously improve the uplink and downlink coverage radius by 30% and the average experience of edge users by about 25%. In other words, if the cell edge coverage index remains unchanged, the base station can configure lower transmission power, and the energy consumption is about 30% lower than that of traditional AAU.
Metaaau is suitable for urban deep coverage and rural 5g construction to solve the problem of large distance between rural stations. Together with Huawei, China Unicom has completed the test of the scheme in Beijing, Xiamen, Chengdu and other places.
From downlink Gigabit to uplink and downlink Gigabit
Traditional mobile communication services are the following actors, and the allocation of downlink resources is much higher than that of uplink. However, with the rise of TOC services such as live broadcasting and the innovation of digital applications in machine vision and other industries, uplink capability is becoming more and more important.
Facing the demand of large uplink, Huawei Sul uplink enhancement solution continues to evolve and continuously improve the network uplink capability. In 2018, Huawei launched the uplink and downlink decoupling solution, which can double the downlink coverage at the far point; In 2019, the joint operators will launch a super uplink solution, which can comprehensively improve the uplink capacity at the near midpoint and the uplink coverage at the far point, up to 2 ~ 5 times; In 2020, the joint operators used the exclusive spectrum of Sul to achieve an uplink rate of more than 1Gbps.
China Unicom and Huawei have completed super uplink deployment in more than 10 cities. Taking Beijing Unicom as an example, it has realized the world’s first 1000 station level super uplink. After a period of data monitoring, the network performance improvement is in line with expectations. The overall uplink rate of super uplink users has increased by 10% ~ 40%, and the uplink rate of edge users can be increased by three times.
It is worth mentioning that the two companies also cooperated with Midea to build a full scene smart factory by using the 5gtob solution of the minimalist Park Based on lampsite and easymacro, created innovative applications such as 5g + AI quality inspection of the general assembly line, 5g forklift positioning and scheduling, 5g KUKA robot and 5g cloud PLC, and explored 5g enabled intelligent manufacturing.
Innovation is endless, and 5g development is a long-term topic. As Peter F. Drucker, the father of modern management, said, “the best way to predict the future is to create the future”. The 5g gigabit network innovation and practice of China Unicom and Huawei will guide the improvement of 5g network capacity from multiple dimensions such as performance, coverage, power consumption and uplink, which is bound to effectively support the higher quality development of 5g in China, pry a larger market space and light up a new era of digital intelligence.
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