At the recent 2022 Global Mobile Broadband Forum, Wang Tao, executive director of Huawei and director of the ICT Infrastructure Business Management Committee, said that 5.5G has made key progress in the three aspects of standards, key technologies, and IoT capabilities, and the i

Source: Huawei WeChat official account

As one of the most advanced science and technology in recent years, 5G has been put in the spotlight, and the competition and discussions of various manufacturers around 5G have never stopped.

In China, the base station and preparation of 5G are the three major operators. Since the start of 5G network construction in 2019, as of the end of 2021, the investment of the three major operators has reached 477.2 billion yuan and has laid millions of base stations.

As a giant in the communication field, most people think of first when talking about 5G.

. At the recent 2022 Global Mobile Broadband Forum, Wang Tao, executive director of Huawei and director of the ICT Infrastructure Business Management Committee, said that 5.5G has made key progress in the three aspects of standards, key technologies, and IoT capabilities, and the industry has entered a new stage of development. It is recommended that the industry prepare together in five aspects: standards, spectrum, industrial chain, ecology and application, and accelerate the move towards 5.5G.

5G is still under construction, what is the 5.5G proposed by Huawei? What is

5.5G?

The current communication technology is developing too fast, which sometimes leads to too much technical differences between each generation of technologies. At this time, a new technology in the middle stage needs to be named to show the difference.

For example, when LTE technology emerged, the indicators did not meet the requirements of ITU International Telecommunications Union for 4G, so it was once called 3.9G. Later, the 4G name was only named after the emergence of LTE-Advanced technology. When 4G developed to 5G, there was also a "4G+" naming in the middle, which was actually a technical naming method in the transition stage.

's 5.5G this time is a transitional naming between 5G and 6G.

In 2021, the global communication technology organization 3GPP also gave 5.5 G a solemn name called 5G - Advanced.

On April 27 this year, at the Huawei Global Analyst Conference, Gan Bin, vice president of Huawei's wireless product line and chief marketing officer, mentioned the "1 + 1 + N" 5.5G network construction concept, saying that "the first phase of the vision of the 5.5G industry has been achieved. In the next stage, it is necessary to build a 5.5G industry around the network construction model."

As 5.5G is mentioned and adopted in Huawei and Chinese companies' strategic operations, the frequency of its mention and adoption is getting higher and higher, and the impact it can create is getting greater and greater. Today, mobile communication operators, including China Mobile, are fully committed to 5.5G.

On August 3 last year, China Mobile and industrial partners issued the "5G-Advanced Innovation Chain Industry Chain Integration Action Plan", aiming to clarify the goals and key measures for the integration of the 5G-Advanced Innovation Chain Industry Chain.

It is worth mentioning that in my country, 5.5G has another alias - green 5G.

It can reduce energy consumption through intelligent energy saving technology, new materials and new energy technology and new network architecture, thereby empowering all industries to achieve low carbon energy saving in the entire industrial chain. This will also help the national carbon peak and carbon neutrality "dual carbon" goals, and help the development of my country's energy conservation and environmental protection.

5.5G has made three key progress

Source: Huawei WeChat official account

Wang Tao said that looking back on the development of communication technology, we are amazed at the rapid development and popularization of technology: telephones have been popularized over more than 30 years, enriching people's communication and life; mobile networks have been widely used around the world in less than ten years, building a fully connected world; facing the future, the intelligent world of the Internet of Things is accelerating.

Wang Tao said that 5.5G has made three key progress: First, the standard rhythm is clear, and 5.5G has moved from vision to consensus . 5.5G has started the process of standardization and will define 5.5G technical specifications through the three versions of 3GPP R18, R19, and R20, and continue to enrich the technical connotation of 5.5G.

Secondly, has made breakthroughs in key technologies, and ultra-large bandwidth and ultra-large-scale antenna arrays have been verified to have 10 Gigabit capabilities .In the 5G era, large bandwidth and multi-antenna are the key to achieving cross-generational experience, realizing the Gbps capabilities. 5.5G technology has further breakthroughs, and ultra-large bandwidth and ultra-large-scale antenna array technology, namely ELAA technology, have become the key to the ten times upgrade of 5.5G capabilities.

Huawei has joined hands with multiple operators to verify the capabilities of ultra-large bandwidth and ELAA. In the millimeter wave band, the 800MHz bandwidth combined with more than 2,000 array antennas achieves a 10Gbps experience; in the 6GHz band, the 400MHz bandwidth combined with more than 1,000 array antennas also realizes 10 Gigabit capabilities, and the coverage distance is comparable to that of C-Band.

Third, IoT panoramic view is clear, 5.5G has the ability to incorporate all IoT . NB-IoT has become the mainstream technology of LPWA. Last year, the number of new connections accounted for 47% of the LPWA market, with a growth rate of more than 60%. In the future, NB-IoT will continue to grow rapidly, and will include the tens of billions of connection demand for LPWA IoT. The three IoT technologies supported by

5.5G are moving forward, and have the ability to incorporate all IoT.

RedCap completed key technical tests of base stations and chips in IMT2020, and has met the commercial conditions to accelerate its commercial use. During the test, RedCap achieved a 2x rate increase compared to LTECat4 and saved 20% of energy consumption. At the same time, RedCap will also refine billions of connection requirements for medium and high-speed IoT with new capabilities such as positioning and low latency.

Passive IoT combines cellular networks and passive tag technology to fill the gap in wide-area passive IoT. In the joint test and verification between Huawei and industry partners, the connection distance of Passive IoT passive terminal tags exceeds 200m, ten times that of RFID technology. Passive IoT will stimulate unlimited commercial applications imagination and support new demands for passive IoT at the hundreds of billions of levels.

calls on the industry to prepare from five aspects

"The giant wheel of the communications industry is rolling forward, and 5.5G has entered a new stage. Looking to the future, we advocate that the industry be prepared together in five aspects: standards, spectrum, industrial chain, ecology and application, accelerate the move towards 5.5G, and work together to build a beautiful intelligent world!" Wang Tao said.

Wang Tao believes that first, the industry is ready for standards and jointly promote the research on key technologies . In his opinion, the standard is the leader of the wireless communications industry and will lead the 5.5G industry to develop along a clear route. For the R18 version that is already under definition, for eMBB, we must verify key technologies and fulfill the goal of 5.5G's ten-fold capacity improvement; at the same time, the industry needs to align key milestones end-to-end to achieve the freezing of the R18 version as scheduled in Q1 2024.

Second, Wang Tao said that the industry should make good spectrum preparations and jointly build a super-large bandwidth spectrum . The spectrum with ultra-large bandwidth is the cornerstone of 5.5G technology innovation and capacity realization. We need to make full use of the Sub 100GHz spectrum resources to provide resource guarantees for 5.5G. Millimeter wave is the key spectrum of 5.5G, and operators need to obtain spectrum above 800MHz to realize 10Gbps capability; 6GHz is a potential new spectrum with ultra-large bandwidth, and countries need to consider starting to issue 6GHz spectrum after WRC-23 identification; for the Sub6GHz spectrum, ultra-large bandwidth can also be achieved through spectrum reconstruction. The third aspect of

is, in Wang Tao’s view, should be prepared for product and jointly mature the end die industry chain . 5.5G network and terminals should be able to match capabilities. Fully release 10,000 gigabytes of ability.

Based on the current breakthrough in key technologies, operators, equipment manufacturers, and terminal chip manufacturers need to further carry out technical solution verification and system network verification, and carry out network and terminal interconnection verification as soon as possible after the standards are frozen in 2024, jointly ripen the industrial chain and achieve commercial use as scheduled.

Ecological construction is also very important. This is also the fourth aspect that Wang Tao believes that the industry needs to do well, that is, to be ecologically prepared and jointly promote the prosperity of 5.5G ecologically. He said that the industry needs in-depth cooperation to promote the prosperity of the 5.5G ecosystem and better serve the digital needs of all scenarios. Taking the IoT ecosystem as an example, operators and equipment manufacturers should plan networks for IoT scenarios, taking into account the needs of people and things; the module capabilities and costs of terminal manufacturers should be adapted to application scenarios, and industry and application developers should incubate applications in advance.

Finally, Wang Tao believes that the -produced industry should be prepared for application and jointly innovate the cross-era application of .He said that 5.5G is accelerating the transition from consensus to reality, providing fertile soil for the development of applications that bloom. Full sensory interaction changes the communication methods of society and realizes cross-eracial communication experience; cars move towards ubiquitous intelligent networking, achieving cross-eracial travel experience; the industry moves from information islands to intelligent connection, achieving cross-eracial industry upgrades. More and more innovative applications will gradually outline the whole picture of the smart world, and the upstream and downstream of the industry need to jointly explore new applications across the era.

Source: WeChat public account "Caizhi Headlines" comprehensive from: Daily Economic News, Xiaoxiang Morning News, China News Network, Science and Technology Daily, etc.

Editor: Bai Jing

Proofreading: Yuan Kai

Review: Gong Zimo

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