The 5G dream in big coffee eyes

"Where is the first commercial 5G in the future?" There is still a candidate A or C ", voice just fell, live a laugh."

Rahim Tafazolli, a professor at the University of Surrey's 5G Innovation Center, announced the results of the poll, perhaps because the 2014 Global Mobile Broadband Forum chose to host Shanghai in China, where nearly thousands of people live and 84.55% voted for Asia to be the first commercially available 5G, But the author is superstitious to choose a option-Europe, perhaps because of 2009 Ericsson and Huawei in Europe to build the world's first 4G network.

As for the C option is not very important, but need to explain the participation of many international friends, the major operators for 5G attention is not stuck on paper.

4G blowout to promote operators to consider 5G

In fact, to do this choice problem is not difficult, only need a phenomenon can be explained-China's 4G high-speed development.

Chief engineer Zhang Feng said that the third quarter of this year, China's new 4G users accounted for about 40% of the total number of new users worldwide, is expected to 2015 4G users in China will be the same size as the network, the world's first leaped.

By the end of September this year, China's 4G users have exceeded 43 million, and by the end of 2014, the number of 4G users will be more than 70 million. "This kind of user blowout phenomenon in the past 3G and 2G times we have never appeared," said Zhengmao, vice president of China Mobile.

Compared to 2G, 3G and 4G in various times, China Mobile has developed 50 million users of the time, 2G spent nearly 10 years; 3G spent nearly three years; 4G only in less than a year, China Mobile is the 2014 development of 4G users aimed at more than 70 million, The next year was 150 million users, and 2016 was 300 million users, just a conservative estimate. Zhengmao said that the development of 4G users beyond imagination is unpredictable to China Mobile, mainly because of the 4G terminal cheap, and the price of 400 yuan.

With the advent of the mobile internet era, for the network put forward a higher demand, "for wireless network, its high efficiency, high speed, intelligence is mainly reflected in the explosive growth of traffic", 5 months ago, also in Shanghai, as the 2014 Asia Mobile Communications Expo speakers, for the global communications industry, Said Xi, China Mobile's chairman.

5 G is an opportunity for operators

5 months later today, also in Shanghai, Zhengmao says digital life is a very important curve in driving revenue growth for operators after 2020.

Zhengmao said the curve, is the first proposed by Xi, the company will rely on the "third curve"-the development of digital life, but was used to explain the content and application, time, the digital life covers a broader meaning. The world's traditional operators without exception in the flow management, China Mobile is now in the voice management to flow Management transformation process, "We believe that one day the flow will be saturated, so to maintain the sustainable development of enterprises, we should pay more attention to content and application development." ”

It can be seen that China Mobile to push the third curve with the time point of the industry forecast 5G business Time point consistent, are 2020, more striking consensus is China Mobile and Huawei in the 5G concept of convergence.

China Mobile for 5G is expected to meet the next 10 years as high as the number of thousands of thousand-fold mobile data growth needs, to provide users with fiber-like access rate, enjoy the "0" time delay experience, with billions of equipment connectivity.

Huawei's definition of 5G network is, "5G network connection will reach 100 billion, peak rate must reach 10Gbps, network delay to 1 milliseconds", Huawei Wireless CMO Yang Shubin believes that attracting operators to invest in 5G, cost-effective most critical, more importantly, 5G will reduce the energy consumption of the mobile network by 1000 times times per bit.

Compared with 4G, in terms of capacity, 5G to achieve the unit area of mobile data traffic growth of 1000 times times; in terms of transmission rate, single user typical data rate increased 10 to 100 times times. One months ago, at the Beijing International Communication Exhibition, China Mobile demonstrated the use of 5G technology to the current China Mobile 4G Network, helping the entire network capacity to rise 6 to 10 times times.

It is worth mentioning that at the beginning of this year, Huawei in the high band Wireless 5G air environment to achieve 115Gbps peak transmission rate, it should be noted that the 5G user experience still depends on the network edge rate of ascension.

5G not only for communication services

5G, in addition to communication between people, will provide a platform to enable the Internet of Things (IoT, IoT) to build a comprehensive information ecosystem in a user-centric environment that provides all possible and cross-border integration.

5G Network at the beginning of the design, destined for the center from the network to the user-centric, giving the best user experience, Tele2 chief technology management Joachim Hom think.

Earlier this month, Huawei combined 5GIC started the world's first 5G field test bed testbed, which will be used for field testing and verification of key technologies for the fifth generation of mobile communications infrastructure.

"Different Web experiences can create different incomes," said Zhijun, Huawei's rotating CEO, which is the first productive force facing the future. Mobile broadband network is a dynamic network, requiring operators and equipment suppliers and partners to continuously ensure that the network has a good experience, but also from voice management to traffic management is facing the most realistic problems.

In my opinion, this is also the reason for the continuous evolution of 4G network, Huawei proposed 2016-year commercial 4.5G is also to adapt to the demand for surging network traffic.

Ericsson believes that the future consumption of the most mobile bandwidth of the business will be the video business. There is no doubt that Ericsson's investment in television and the media market is chasing the impact of the video business on the market share of global traffic. and the relevant forecast data is shown that by 2020 the entire video traffic will account for 60% of mobile network traffic.

However, Professor Rahim Tafazolli believes that 2G is to meet voice demand, unimpressed is for mobile internet demand, 4 G is to meet the data business, but "5G network design can not only consider video."

5G: Revolutionary upgrade of user experience

In Yang Shubin's view, unlike 4G, 3G, 2G, 5G is not a single wireless access technology, nor is it a few new wireless access technologies. To some extent, 5 G is a truly converged network that seamlessly supports a variety of new network deployments, including ultra-high density wireless network deployments, postbacks, device to device communications (called), dynamic spectrum re-engineering, and wireless access infrastructure sharing.

The author of Huawei 5G's vision also raised some questions, compared with Ericsson forecast 2020-year 50 billion connection, Huawei proposed 5G has 100 billion connections, the extra 50 billion connections from which areas?

Yang Shubin says 100 billion is not just the number of connections reached in 2020 5G. Huawei 5G will be used in a number of industries around the world, bringing Chi connectivity opportunities. Due to close to 0 delay, auto driving, remote surgery, virtual reality become possible, "and only 5G network to meet the demand." ”

Talking about the popular concept of car networking at this stage, Yang Shubin to comobs that 4G or 4.5G networks are difficult to meet the real sense of the car network needs, "the car to achieve automatic driving, if allowed speed of 100 km/h, then 1 milliseconds to drive the distance approaching 3cm,3cm is a safe distance , the time delay of the entire 5G network should be shortened to 1 milliseconds. ”

Related tests show that, although the 4G is significantly smaller than the 3G delay, the 4G Network 50 millisecond delay at 100 km/h speed distance of 1.5m. The safety of 4G delay is a challenge for auto driving.

"3 seconds, determines the user experience", Wang Tao, president of Huawei's wireless network product line, said Huawei's work with Hunan University to track user eye observation found that opening a business or application waiting for 8 seconds is the user's endurance, waiting 3 seconds for 90% of users to continue to wait, which means that the 5G will improve the user experience, of course " The time to wait "reduction not only requires the efforts of operators, but also requires the joint efforts of the ecosystem."

5G: Standard unification is the trend

Zhengmao pointed out that China Mobile in the 5G aspect of the first plea for air interface as far as possible to achieve unity. If the air interface appears too many standards or too diverse, it will bring more problems and trouble to the whole industry.

From the 2G era to the two standards against the 3G era three standard parallel, the communications industry to promote the 4G era of LTE TDD/FDD Fusion, in the 5G era of the entire global standard is a must demand. Yang Shubin said that the 4G era all the unified form one LTE, making global roaming possible, at the same time conducive to the expansion of the industry, end-to-end cost of the entire system to reduce, ultimately to the end consumers benefit.

At present, from the 5G study of the entire standardization of product deployment, it is still in LTE in 2004 before the standardization of the stage-manufacturers, various research institutions and universities are doing innovation and research. and Huawei 5G Research began in 2009, published in November 2013 the 5G vision and demand white paper, and plans to invest at least 600 million dollars 2018 years ago, for 5G technology research and innovation, Yang Shubin stressed, "600 million dollars for research and innovation, not including the cost of product development."

Currently, the ITU is studying the 2020 and beyond the IMT spectrum requirements, 2015 WRC (WRC-15) will be for the following 60GHz frequency of relevant technical solutions, to 2019, will be on the 60GHz above the frequency. For the 5G frequency, Yang Shubin that 6GHz below the frequency band is 5G core frequency band, Huawei 5G system will also support higher than the 6GHz band, can be used for access and return.

Joachim Hom says, "lower frequencies are the key to securing 5G success because the network needs to be well covered." ”

5G: Ecosystems benefit consumers more than technology

So far, many terminals of IoT are connected by using private network and special technology. Zhijun on the situation of the internet of things without worry, 5G can really pay attention to the demands of various industries? As far as possible to meet the needs of the various industries connection?

5G requires not only network technology innovation, but also a mature ecosystem, Tele2 chief Information technology officer Joachim Hom said 5G needs end-to-end system optimization.

Yang Shubin said that, as opposed to the 4g,5g global standard is equally important, 5G not only includes the connection between people, more importantly, there are people and things, things and the connection between the whole society, the application of different industries, if a separate standard for each industry, it is impossible to form an industrial scale, which means that 5G of equipment costs , terminal costs to bear a relatively high price.

In Huawei's view, working with a number of global ecosystem partners to drive the 5G to make the same goal. At present, Huawei has established partnerships with more than 20 universities around the world and has cooperated with European Union Metis, ITU, China IMT-2020 and 3GPP. Among them, Huawei has invested more than 300 expert engineers in 5G research and development, and has set up 9 5G research and development centers in global scope.

"If we can unify the demands of different industries and unify the demands of different regions in different countries, we can form a set of globally harmonized norms and ultimately benefit consumers." ”

Zhang said that China will further accelerate the 5G research process, through the national major special, 5G propulsion Group Policies and mechanisms to strengthen the 5G overall layout, the construction of 5G international cooperation system, and jointly promote the 5G concept, technical standards and product development.

(Responsible editor: Mengyishan)