“Ronald Reagan” nuclear-powered aircraft carrier (US Navy data map)
According to information released by the US military, in addition to the “Reagan”, the aircraft carrier strike group that entered the South China Sea this time also included the “Ticonderoga”-class guided missile cruiser “Shilo” (CG 67) and “Arleigh Burke”. Class destroyer “Halsey” (DDG 97). Among them, the “Hilo” cruiser visited Zhanjiang City, Guangdong Province in May 2013. This is one of the important bases of our army’s South China Sea Fleet.
US military sources said that after the “Reagan” aircraft carrier strike group entered the South China Sea, it was performing various maritime training tasks, including air force flight training, maritime strike training, and coordinated tactical training of surface units and aviation units.
It is reported that the “Reagan” aircraft carrier strike group will hold a routine “spring cruise” as planned. Affected by the new crown epidemic, the “Spring Cruise” of the “Reagan” in 2020 lasted for 5 months, breaking the record for the mission time of the aircraft carrier stationed in Japan since 1999. Last year, the “Reagan” entered the South China Sea many times, and this year, the “Reagan” has just completed a few months of small-scale renovation.
The US military also mentioned in the news that the US military previously dispatched the USS Wilbur (DDG 54) destroyer to coordinate with the Australian Navy ship USS Ballarat. The two navies were also on June 6-11. South China Sea operations.
Previous photos of the “Ronald Reagan” nuclear-powered aircraft carrier training (US Navy)
Chinese Ministry of National Defense spokesperson Tan Kefei made a statement on May 20 regarding the illegal intrusion of the USS Wilbur into our territorial waters of Xisha, stating that the ship illegally broke into China’s territorial waters of Xisha without the approval of the Chinese government. The Chinese People’s Liberation Army organizes naval and air forces in relevant theaters to track and monitor US ships and warn them to leave. The intrusion of a US warship into our territorial waters in Xisha was a serious provocative action of very bad nature. We strongly oppose and strongly condemn it.
This article is an exclusive manuscript from Observer.com and may not be reproduced without authorization.

Gucheng Lake Slow City is very large in scale, covering a full area of ​​more than 8,000 acres, and the “Hundred Lotus Garden” has a total area of ​​nearly 1,000 acres, which is one of the core attractions of Gucheng Lake Slow City. When you walk into the scenic area, you can’t wait to raise the drone. The aerial view of Baihe Garden is very unique, which is inseparable from the unique landscape of Baihe Garden. There are rivers hidden in the sea of ​​lotus flowers, and boats are floating on the water. , Like a water town in the south of the Yangtze River. In the Baihe Garden from June to September every year, thousands of acres of lotus bloom and the fragrance of lotus floats, refreshing one’s heart. Enjoy flowers in the Baihe Garden, or take a awning boat to enjoy the flowers, or shuttle on the wooden plank road in the lotus sea. The beautiful scenery is refreshing and refreshing. Even in the hot summer, you can find the coolness here. I believe that many people have taken awning boats in ancient water towns, and it is really rare to take awning boats to enjoy flowers in the sea of ​​nearly 1,000 acres of lotus, and it is also very emotional. At this time, it would be great if there was another graceful woman in ancient costume, and this trip happened to be accompanied by a girl in Hanfu, it was perfect. Being in the sea of ​​lotus, looking at the green lotus leaves and the white pink lotus in front of you, you can’t help but remind you of Yang Wanli’s poem: “The lotus leaves are infinitely green in the sky, and the lotus is red in the sun”. Use this poem To describe the scenery you see in front of you can’t be more vivid. As the best lotus viewing spot in Nanjing and even East China, there are also very many kinds of lotus in the Baihe Garden of Gucheng Lake Slow City, with nearly a hundred kinds of precious species such as “Friendship Peony Lotus”, “Pretty Girl”, and “Sword Dance Lotus”. Lotus varieties. Of course, we don’t care about its name, as long as the lotus is good-looking, it is enough. After all, we come here to play in order to see the most beautiful lotus. Looking around, among the emerald green lotus leaves, the slim lotus flowers seem to be dancing like an outstanding fairy. In this situation, who can withstand the temptation of the beautiful scenery in front of them, picking up mobile phones and cameras, recording This beautiful moment. I believe that many people will always think of “nobleness, love, innocence” when they see lotus, which is exactly what the lotus symbolizes, just as the ancients praised the lotus as the “gentleman in the flower”, Buddhism respected the lotus as the “sacred and clean flower” “,” Zhou Dunyi, a famous philosopher in the Northern Song Dynasty, wrote the poem “I love the lotus without being stained by the silt but not stained” in “Ailian Shuo”. When I went to Gucheng Lake Slow City to play, I also encountered the opening ceremony of the Lotus Festival. The weather was very good. With the afterglow of the sunset, the wonderful classical performance and the cheers from the guests from all over the world, the opening ceremony ended successfully. This time I also got the new gameplay of Slow City. Not only can you enjoy the lotus during the day, the “Night Tour in Baihe Garden” is the highlight of the lotus festival. Share several highlights of the night tour, one of which is “Intangible Cultural Heritage”! The iron flower is a national intangible cultural heritage and a large-scale folk traditional fireworks display. It appeared as early as the Northern Song Dynasty and has a long history of more than 1,000 years. Recently, the friends who are going to Shui Slow City are blessed. From June 11 to July 17 at 19:50 on Fridays and Saturdays, there will be a thousand-year stunt at Baiheyuan Pier. Friends who went to Shuiman City during the Dragon Boat Festival, I believe many people have seen the “drone show” here, and it still makes people linger when thinking about it. The drones change patterns from time to time, including lotus, snail and Shuiman city. Anniversary and other patterns and texts are shining in the sky above Baihe Garden. Every second is wonderful and every second is unforgettable. The third is the “Cool Laser Show” in the Baihe Garden. Under the illumination of the cool lights, the Baihe Garden in the night is full of vitality. The lights illuminate all the gorgeous night scenes, plus the addition of the moon. The words “Lotus pond moonlight” blurted out, and the scenery in front of me was no different from a visual feast. The misty forest fairyland in the daytime is transformed into a fairyland on earth under the night. Being in it is like being in a fairyland. The lights and the lotus add radiance to each other, showing a beautiful picture full of brilliance, which is also an unforgettable wonder for me. Night trip.

New Swift 2021 has just entered the Vietnamese market. New Swift 2021 interior is equipped with a 10-inch touch screen compatible with Apple CarPlay, Android Auto, integrated reversing camera and USB, AUX, Bluetooth connectivity… Besides, the clock cluster has a stylish and personality design with outstanding red and white colors, the information is arranged scientifically to help users easily observe. In addition, a push-button start, a sporty D-shaped steering wheel with nodding and a height-adjustable driver’s seat are also valuable details of the New Swift 2021. Developed to be a small car, with a strong chassis with lightness and high rigidity, the Swift is lighter in weight and offers more performance in maneuvering, turning and stopping. VGRS (Variable Gear Ratio Steering) steering system helps the steering angle of the wheel change according to the steering force, providing a more realistic driving feeling. In addition, the newly designed suspension system helps to increase the ability to grip the road and the sensitivity of the steering wheel, increasing the smoothness when steering into wide corners. New Swift 2021 is equipped with a compact 1.2L gasoline engine, combined with a VVT variable valve actuator, Swift for good acceleration, outstanding fuel economy. The road fuel consumption of New Swift 2021 is 4.4L / 100km. Imported CBU from Thailand, New Swift 2021 is sold in Vietnam with 5 paint colors: red, black, white, blue, gray. Although selling very well in foreign markets, especially India, the Suzuki Swift struggled in the Vietnamese market. Sales figures from the Vietnam Association of Automobile Manufacturers (VAMA) show that, in 2020, Suzuki Swift only achieved sales of 648 vehicles, down 1,042 vehicles compared to 2019. With the name of imported car, stylish design and stable and economical operation… However, the higher selling price than small hatchback models in Vietnam is one of the reasons why Suzuki Swift is still not can compete.

Fishing reishi in flood season in upstream districts of Dong Thap province Young lingfish are sold a lot at markets during the months when the water is high For many years, the journey to find and promote the top Vietnamese specialties and cuisine has been conducted by the Vietnam Record Organization since the beginning of 2010 with the patronage of the Global Vietnamese Records Organization (VietWorld). World Records Union (WorldKings). Sour and sourdough fish with crazy fish – a famous delicacy of Dong Thap province Sa Dec noodle soup – famous famous dish of Dong Thap province Top Vietnamese specialties is made with the goal of promoting culinary values, Vietnamese specialties, special and unique dishes, typical for each region, honoring Vietnamese culinary values, promoting Vietnamese cuisine is widely available to domestic and foreign tourists, providing a comprehensive view of a diverse and healthy cuisine. Processing shrimp crackers at Sa Giang Import-Export Joint Stock Company Nem Lai Vung – a famous signature dish that is known by many people For many years, Cao Lanh mango has been the main crop of many households In order to be selected in the top Vietnamese specialties in 2020, dishes must meet criteria such as bringing Vietnamese breath, using natural ingredients to prepare, suitable for taste, good for health, origin of export. clear history and culture.

However, not everyone is aware of the harmful mistakes that will bring bad luck to your family. Feng shui expert Phung Phuong pointed out that 5 great cavalry owners need to be especially avoided, absolutely should not be committed. Experts say that it is quite difficult to build a house, not to let ignorance break the sand of the plan. Enter trach when the house is not completed When the house has not been completed, it means that the atmosphere is unstable, which can easily lead to turmoil and turmoil. You live in such an unstable environment, also detrimental to your health, wealth, and bad luck. When entering trach at a time when the feng shui is not good, later life will also be difficult to achieve the desired performance. I advise you, after finishing all the works from internal bonding to the small landscape, wait 1-2 weeks before doing the import ceremony. Wrong date entered I see a lot of families who do not choose the right day to join. To have a good day must ensure two factors: according to the plan and the age of the owner.
Many times, if you only count by your age, you forget the fortune, this is a damaging thing. You should move to a new home when the land is prosperous and stable. In feng shui, there are 3 elements Thien, Dia and Nhan, the element of Geography depends on time.
That is the reason that our feng shui remains unchanged, but the progress at ups and downs, so you need to choose a day of prosperity to welcome the good sand. An incorrect altar If you place the altar to worship the altar before entering the trach, it is wrong with the formal feng shui process. When you get home, you will move a lot of spills such as: beds, wardrobes … into the house.
In the process of stable installation, it is easy to move the altar and disturb the aura.
In addition, you usually have to knock on a fixed angle, creating loud noises and creating pulses to “worship”.
The church committee just got home has been “moved” and will bring negative things. Feng Shui 100 days first When you first come home, you will not only do the ceremony of the first day but also need to burn incense for 100 consecutive days with the aim of: stabilizing the atmosphere, increasing the vitality.
If you accidentally forget 12 days out of those 100 days, it will take a long time before you can stabilize the gas for the whole house. * Information for reference only.

As a 100% “Make-in-Vietnam” technology enterprise, having many active activities in response to the digital transformation plan, Coc Coc has excellently surpassed nearly 300 nominations from many prominent competitors. to win 4 Sao Khue prizes for all 4 participating categories in the first time participating in the competition. Specifically: ● The Coc Coc advertising platform product won the Top 10 Sao Khue award in 2021 in the field of Advertising, Marketing and Digital Media. ● The product of Coc Coc Browser directly won the Sao Khue 2021 award in the field of Digital content ● The product of Coc Coc search engine – Coc Coc Learning features won the Sao Khue Prize 2021 in the field of Education and Training ● Coc Coc browser product – Safe Browsing feature upgraded Safe Browsing won Sao Khue award 2021 in the field of Information Security and Safety In particular, the advertising platform of Coc Coc – Coc Coc Ad Platform was also honored to be recognized the title of Top 10 Sao Khue 2021.

The real Korean New Year is also one of the major Tet holidays of Vietnam, especially for the people in the North. Traditionally, on this day, people would eat cold dishes (“real welding” means “cold food”). And floating cake, vegetarian cake is an indispensable dish.

Among the floating cakes and vegetarian cakes, perhaps the Sau Sau shop on Ngo Thi Nham street is one of the places that attracts the most buyers. Part because it is in the center, partly because the quality of the cake here has been verified over many years.

This morning (March 3 of lunar calendar), not out of prediction, was only from 7:00 am to 8:00 am, but customers lined up to buy it. To be able to have enough cakes to sell, this tea shop also arranged “team” to make cakes right “at the match”. The person kneading the cake always, the person boiled the cake and picked it up continuously, the customers also went in and out.

The real Korean New Year, the streets of Hanoi also seem more bustling than usual. Everyone has to try to buy with a plate of floating cakes, a bowl of vegetarian cake to eat in this day, otherwise there will be something missing. And the images of baking, then queuing to buy cakes have become one of the typical cultural features of Hanoi in this day, every year there is no shortage of them immediately.

As noted, the shopping atmosphere at the local markets is much more bustling than this day. The owners said that the customers went to buy vegetarian cakes from early. Therefore, most of the shops have to prepare, even stay up at night to make a large quantity in advance to sell to customers.

Many consumers line up to buy floating cakes, vegetarian cakes for the real Korean New Year.

The batches of floating cakes – vegetarian cakes are neatly cut into plates and sold to customers.

At the vegetarian cake shop, the housewives hurriedly buy the goods, making the atmosphere very exciting. Every row of floating cakes must have 2-3 people to serve. Prices floating cakes, vegetarian cakes today are still the same price compared to normal days.

A plate of floating cakes costs 7,000-10,000 VND. A vegetarian cake is about 10 to 15 thousand dong more expensive, depending on the size of the plate. In addition to buying floating cakes and boiled vegetarian cakes, many housewives also buy ready-made cake dough to go home to cook for themselves.

At popular markets, the number of customers coming to buy is not too crowded, but the stalls selling floating cakes and vegetarian cakes are continuously molded to provide goods because online orders are still coming back.

In addition to selling floating cakes, ready-made vegetarian cakes, consumers can also buy floating cake dough and ready-made ingredients.

In addition to the traditional white flour, there are also five-color vegetarian cake dough.

Floating cakes are sold in combo, two trays have a preferential price of 15,000 VND and buy a single tray with the price of 10,000 VND.

Thanh Ha, 30 years old in Nguyen Trai, shared: “We have to take advantage of our free time and run right away to go to the market to buy things for the offering tray. This morning I still had to work at the company, so I got up early to buy 5 plates of floating cakes, go vegetarian, buy a chicken, some fresh fruit and gold money for my mother-in-law at home to make a tray of rice to worship our ancestors today. Today, even though it is the real Korean New Year, the food prices have not increased so it’s easy to buy.

Women who do not have time to make dough can also quickly buy a box of fresh glutinous rice flour to make cakes and vegetarian cakes. These flour packages include all ingredients such as flour, sugar, green bean paste, sesame, grated coconut, canned five-color cake … Offering family offerings.

The ingredients are fully sold for home-home buyers.

The batches of cakes are continuously made evenly by the small trader to provide for customers.

Not only at local markets, but also shops must quickly and quickly close applications and sell them to customers continuously.

This year, many housewives prefer to order online at home instead of going to the store to buy.

According to Ms. Hoang Lan, owner of a floating cake shop, vegetarian cakes shared: “In addition to selling floating cakes, vegetarian cakes, my family also sells five-color cakes, and su Su cakes to serve the needs of customers.

I only sell for 3 days, starting from the 1st to the 3rd of the 3rd lunar month. The total amount of flour for baking and selling in 3 days is up to 5 quintals. In which, 3 weights for me to mold the cake to sell, and about 2 weights of flour to sell to customers to make by themselves. Because the amount of cake sold is too much, it is impossible to count how many plates, we only know that this season, we make 0.5 tons of cake dough.

Vegetarian cake floating cake costs 10,000 VND / box, Choux pastry is 20,000 VND / box. On the days close to the Korean New Year, due to the sudden increase in the number of visitors, I have to mobilize my husband, children and brothers to help grind the flour, divide the flour, pack, mold, boil the cake to deliver it to customers in time “.

In addition to floating cakes, the shops also sell five-color chayote cakes at the price of 20,000 VND / tray.

Five colors sticky rice has the same price as 10,000 VND / tray.

Floating cakes, vegetarian cakes today are more diverse in colors. Not only is the traditional white color but also purple, green from pineapple leaves, red from Gac, yellow from gardenia.

Green bean cake beautifully shaped, selling price 10,000 VND / tray.

Vegetarian Banh Bao is available for 80,000 VND / big bag, or for retail for 2,000 VND / piece.

In the spring of 2021, the Gigabit Optical Network (F5G) “fires.”

The two sessions this year, the “14th Five-Year Plan” and the 2035 long-term goal outline have clearly put forward the “promotion and upgrading of gigabit optical fiber networks.” The “Gigabit Optical Network” was written into the government work report for the first time, and the Ministry of Industry and Information Technology also issued a specific construction action plan. For a time, the industry’s attention to the gigabit optical network reached a new height.

Recently, Huawei’s “2021 Global Analyst Conference” was held in Shenzhen. At the sub-forum “Intelligent All-Optical Network: Accelerating Gigabit Optical Network Construction”, Guangxi Telecom General Manager Ye Songhua said, “The construction of a Gigabit optical network can only be done by waiting. Cars, cars can’t wait for the road”. In his view, Gigabit optical network is the “bearing base” of communication infrastructures such as 5G, data centers, and the Internet of Things, and needs to be deployed in advance.

In addition to the “construction landing” of the gigabit optical network, exploring “application scenarios” is also a big problem. In this regard, Jin Yuzhi, president of Huawei’s transmission and access product line, revealed that Huawei plans to implement at least 100 Gigabit optical network application projects in the next five years, focusing on five areas of education, environment, health, development, and production.

Why accelerate the construction of gigabit optical network?

When it comes to 5G, everyone is no stranger; when it comes to F5G, few people know. 5G is a mobile communication network technology that focuses on wireless and mainly serves the access of mobile terminals such as mobile phones. And F5G is a fixed communication network technology, the focus is on wired, also known as “Gigabit Optical Network”, the main business is fixed network optical fiber broadband access.

Compared with the application scenarios, 5G is suitable for mobility and multi-connection scenarios, such as drones, car networking, etc.; F5G is suitable for fixedness, large bandwidth, low latency and high security scenarios, such as industrial Internet, data center Interconnection and enterprise parks, etc.

Like the fifth-generation mobile network technology represented by 5G, F5G has undergone more than 40 years of evolution, namely the F1G, F2G, F3G, and F4G eras. The corresponding era is the voice era, network era, video era, and 4K era. . In this “history of evolution”, different application scenarios have appeared in each era, and the work and life of each era have undergone tremendous changes.

Under the “Broadband China” strategy in the past, my country implemented the first “optical reform” characterized by “optical advancement in copper retreat”. In this cycle, our FTTH (Fiber to the Home Capability) penetration rate has reached 93%. Today, the “second optical reform” kicks off, and the past 100M optical network is being upgraded to a gigabit optical network.

Why upgrade to a gigabit optical network? According to iiMedia Consulting’s data, the number of online education users in China will exceed 300 million in 2020, and the symmetrical upstream and downstream bandwidth requirements for online courses are not less than 100Mbps, which needs to match the operator’s 500Mbps broadband package; remote office in China The scale of enterprises currently exceeds 18 million, and the smooth HD conference experience requires that the network packet loss rate is at least less than 1%.

Online education concept map image source: phototu.com

With the explosion of the cloud economy and thousands of industries shouting for digital transformation, it is imminent to upgrade the existing fixed network with a large bandwidth, low latency, high reliability, and simple deployment of all-optical networks.

In the “Dual Gigabit Network Coordinated Development Action Plan (2021-2023)” issued by the Ministry of Industry and Information Technology a few days ago, it was proposed that by the end of 2023, the Gigabit optical fiber network will have the capacity to cover 400 million households. Broadband users exceeded 30 million, and 100 gigabit cities were built.

The government work report was written for the first time, and the Ministry of Industry and Information Technology issued a specific construction action plan. The “Gigabit Optical Network” has now entered the fast lane of development. Zhang Haiyi, deputy director of the Institute of Technology and Standards of the China Academy of Information and Communications Technology, said at the forum that my country’s gigabit optical network construction is in a “climbing period” and the principle of “moderate advancement” needs to be considered, and 10G PON, OTN and other digital bases should be accelerated. Network capacity building.

In this context, Guangxi, Shandong, Shenzhen and other places have begun to increase the construction of gigabit optical networks, and some of them have put forward clear construction goals. Ye Songhua said that in the next three years, Guangxi Telecom plans to build 14 cities into “Gigabit Cities” to strengthen the coordinated development of Gigabit optical networks and 5G; Li Zhuangzhi, technical director of Shandong Unicom’s Network Department, also revealed that Shandong Unicom will be Fully open the integration of cloud and light to explore, and combine the needs and characteristics of government affairs, finance, medical, manufacturing and other industries to provide industry solutions.

Construction and landing require the efforts of all parties

In fact, it is not simple to promote the construction of gigabit optical networks in an all-round way.

Jin Yuzhi said that the “secondary reform” put forward two new requirements. First, it is necessary to realize Gigabit home access on the home side, including further upgrading from FTTH to FTTR (Fiber into the room), home Wi-Fi speed to realize Gigabit and so on. Second, on the industry application side, Gigabit optical networks should be used to collaborate with 5G to promote the digital transformation of thousands of industries.

The first is FTTR, which connects optical fibers to every room. Huang Zhiyong, vice president of Huawei’s transmission and access product line, told reporters that neither the twisted pair technology nor the power line technology can carry gigabit bandwidth. “The carrier of the power line is hundreds of megabytes and the bandwidth is limited, so fiber optics must be deployed. In the future, gigabit, two gigabit or more bandwidths may be needed. The advantage of fiber optics is that the bandwidth is unlimited and it has a life span of 30 years after deployment. ”

However, Huang Zhiyong mentioned that in the past, the Ministry of Housing and Urban-Rural Development did not have a clear standard for putting optical fiber into the room. Therefore, Huawei is now cooperating with the Ministry of Housing and Urban-Rural Development, hoping to bury optical fibers directly in the rooms in commercial office buildings and residential communities. “The FTTR road requires not only policy support, but also the cooperation of upstream and downstream companies including home improvement companies, operators, Huawei, and real estate developers.”

According to the data, from the perspective of the development of gigabit broadband access services, as of 2020, 70 provincial telecom operators in China have launched gigabit broadband commercial packages; the number of gigabit subscribers in my country has reached 6.43 million, which is higher than that. At the end of the year, there was a net increase of 5.53 million households.

However, “speeding up and reducing fees” is also the focus that the government has always mentioned. Last year’s government work report clearly put forward the requirement of “a 15% reduction in average rates for broadband and dedicated lines”, and this year’s government work report also clearly required that SMEs’ average broadband and dedicated line tariffs be reduced by another 10%.

Under the trend of “speed up and cost reduction”, how can operators and equipment manufacturers make profits? Huang Zhiyong told reporters, “Huawei’s idea is to reduce the transmission cost per bit through a large number of technological innovations on the one hand. On the other hand, to make network construction more efficient through a large number of scenario-based and architectural innovations. One point of view is to’improve quality and speed’, and ultimately transform the previously mentioned demographic dividend into an experience dividend by satisfying the differentiated experience of customers.”

While major operators are investing heavily in the construction of 5G, they must also promote the upgrade of gigabit optical networks. Therefore, in addition to the implementation of gigabit optical network construction and tariff issues, the investment cost of F5G construction is also the focus of attention from the outside world.

Huang Zhiyong said that the investment in the F5G era from F4G, GPON to 10GPON did not increase much, because the most difficult money to spend in the “optical in and copper retreat 1.0” was to unplug the copper wires and deploy optical fibers in the GPON era. The 100M F4G era 80% of the cost has been invested. Therefore, when upgrading from 100M to Gigabit, 80% of the investment does not need to be moved. Only the OLT board and Gigabit optical modem of the central office are upgraded. The F5G Gigabit access investment may be 1/10 or even less than that of 5G.

Exploring “application scenarios” is the key

The wave of 5G is rolling forward, and the current 5G-oriented application exploration for the B-side is also a hot spot. Industry convergence applications are accelerating, while the application exploration of Gigabit optical networks is relatively small compared to 5G. In the development of gigabit optical network, the foundation is under construction and the key is in use. How to promote the innovative application of gigabit optical network is the focus of attention of all parties at present.

Wei Leping, executive deputy director of the Communication Science and Technology Committee of the Ministry of Industry and Information Technology, once said that Gigabit optical network access is not only a supplement to Gigabit 5G access, but even better than 5G in many performance parameters. 5G applicable business scenarios include outdoor mobile scenarios and scenarios where optical fiber is difficult to deploy. The advantages of optical fiber are the coverage of fixed scenarios such as homes, offices, workshops, medical care, and video surveillance, as well as scenarios with high-bandwidth and high-quality networks.

Fixed scene is the dominant area of ​​optical fiber. Source: Photograph.com

However, the current level of my country’s optical fiber network and 5G network has led the world, and it has entered a “no man’s land” in terms of “dual gigabit” network applications, and is in the stage of concentrated exploration and research.

Jin Yuzhi said that scenarios such as education informatization, medical digitization, and industrial Internet are all application scenarios for Gigabit optical networks: in universities, teaching and life scenarios are responsible, and the number of users is huge; hospitals also face problems such as large amounts of data and high transmission pressure, and In telemedicine, low latency and so on are required.

At the forum, Zhu Suishong, director of the Network Technology Department of Shenzhen Nanshan People’s Hospital, shared the innovative application of “all-optical network” in smart medical care. Zhu Suisong said that after the hospital adopted the “All Optical Park” solution, the network was stable and reliable, and the access time of the medical imaging system was increased from nearly 20 seconds to less than 1 second. At the same time, based on this network, the medical record sharing referral of 89 social health clinics and 5 general hospitals of Xiehe Shenzhen Hospital has been realized.

According to him, an ordinary CT light film is very difficult to understand for most patients, but a complete set of three-dimensional medical images can effectively make patients aware of their condition, but such three-dimensional images require three hundred Only one CT light film can be composed. The blessing of the gigabit optical network has greatly increased the speed of the hospital’s access to the medical imaging system, making it possible to construct more three-dimensional medical images.

In fact, Huawei has been exploring the application scenarios of gigabit optical networks. Huang Zhiyong told reporters, “In to B scenarios, such as mines, in fact, F5G is particularly needed. Because there are many tree-shaped roadways in the mines, it is very difficult to transmit wireless signals in the roadways, and there are flammable and explosive scenes under the coal mine. F5G has a large bandwidth and time The extension is low, and technology based on industrial PON or optical is not possible, which can greatly reduce the number of explosion-proof boxes.”

Huang Zhiyong also mentioned that in some strong electric manufacturing scenes, such as automobile processing and some welding igniting scenes, the charged ones are not as good as the anti-interference effect of optical fiber, which is also suitable for F5G scenes. It is understood that in order to explore more application scenarios, Huawei will launch the “Light Chaser 100” action plan, focusing on education, environment, health, development, production and other 5 areas in the next 5 years, and implement at least 100 gigabit optical networks. Application project.

Daily economic news

CEO Brian Armstrong has made $ 12.4 billion on the list of the world’s billionaires

On April 14, the largest crypto exchange in the US officially went public on the Nasdaq with a value of up to $ 86 billion. This helped the fortune of co-founder and CEO Brian Armstrong rise to 12.4 billion USD, becoming the 175th person on Bloomberg’s list of world billionaires.

After earning a master’s degree in computer science from Rice University, CEO Armstrong founded UniversityTutor, a website that offers online tutoring services and has been running for almost a decade but with little success. He then moved on to work as a software engineer at Airbnb for about a year.

By 2012, founders Brian Armstrong and Fred Ehrsam officially partnered to create Coinbase, a cryptocurrency exchange that allows users to buy and sell more than 40 different digital assets, including cryptocurrencies. like Bitcoin, Ethereum and Litecoin.

It is known that the 38-year-old billionaire currently owns about 40 million Coinbase shares. “I think some digital currencies will eventually be the world’s reserve currencies. I see their future,” said CEO Armstrong.

This Coinbase IPO is considered a turning point in the market because this is the first time that a company associated with a cryptocurrency has been listed on the public.

In the last two years, the value of Bitcoin has increased dramatically, making the names of CEO Brian Armstrong and Coinbase become famous in the tech world with about 56 million users worldwide, managing more than $ 320 billion in total volume. deal.

The bullish momentum of digital currencies such as Bitcoin, Ethereum currently reaching the milestone of $ 63,000 and $ 2,500 respectively are considered leverage to help Coinbase achieve impressive revenue and profit.

In 2020, this crypto exchange had a turnover of $ 1.3 billion. In its preliminary report for the first quarter of this year, Coinbase showed that revenue for the same period increased 9-fold to $ 1.8 billion and net income increased from $ 730 million to $ 800 million.

After the IPO, Coinbase is receiving a lot of expectations from experts as well as those who believe in cryptocurrencies for a solid future in the market.

In the spring of 2021, the Gigabit Optical Network (F5G) “fires.”

The two sessions this year, the “14th Five-Year Plan” and the 2035 long-term goal outline have clearly put forward the “promotion and upgrading of gigabit optical fiber networks.” The “Gigabit Optical Network” was written into the government work report for the first time, and the Ministry of Industry and Information Technology also issued a specific construction action plan. For a time, the industry’s attention to the gigabit optical network reached a new height.

Recently, Huawei’s “2021 Global Analyst Conference” was held in Shenzhen. At the sub-forum “Intelligent All-Optical Network: Accelerating Gigabit Optical Network Construction”, Guangxi Telecom General Manager Ye Songhua said, “The construction of a Gigabit optical network can only be done by waiting. Cars, cars can’t wait for the road”. In his view, Gigabit optical network is the “bearing base” of communication infrastructures such as 5G, data centers, and the Internet of Things, and needs to be deployed in advance.

In addition to the “construction landing” of the gigabit optical network, exploring “application scenarios” is also a big problem. In this regard, Jin Yuzhi, president of Huawei’s transmission and access product line, revealed that Huawei plans to implement at least 100 Gigabit optical network application projects in the next five years, focusing on five areas of education, environment, health, development, and production.

Why accelerate the construction of gigabit optical network?

When it comes to 5G, everyone is no stranger; when it comes to F5G, few people know. 5G is a mobile communication network technology that focuses on wireless and mainly serves the access of mobile terminals such as mobile phones. And F5G is a fixed communication network technology, the focus is on wired, also known as “Gigabit Optical Network”, the main business is fixed network optical fiber broadband access.

Compared with the application scenarios, 5G is suitable for mobility and multi-connection scenarios, such as drones, car networking, etc.; F5G is suitable for fixedness, large bandwidth, low latency and high security scenarios, such as industrial Internet, data center Interconnection and enterprise parks, etc.

Like the fifth-generation mobile network technology represented by 5G, F5G has undergone more than 40 years of evolution, namely the F1G, F2G, F3G, and F4G eras. The corresponding era is the voice era, network era, video era, and 4K era. . In this “history of evolution”, different application scenarios have appeared in each era, and the work and life of each era have undergone tremendous changes.

Under the “Broadband China” strategy in the past, my country implemented the first “optical reform” characterized by “optical advancement in copper retreat”. In this cycle, our FTTH (Fiber to the Home Capability) penetration rate has reached 93%. Today, the “second optical reform” kicks off, and the past 100M optical network is being upgraded to a gigabit optical network.

Why upgrade to a gigabit optical network? According to iiMedia Consulting’s data, the number of online education users in China will exceed 300 million in 2020, and the symmetrical upstream and downstream bandwidth requirements for online courses are not less than 100Mbps, which needs to match the operator’s 500Mbps broadband package; remote office in China The scale of enterprises currently exceeds 18 million, and the smooth HD conference experience requires that the network packet loss rate is at least less than 1%.

Online education concept map image source: phototu.com

With the explosion of the cloud economy and thousands of industries shouting for digital transformation, it is imminent to upgrade the existing fixed network with a large bandwidth, low latency, high reliability, and simple deployment of all-optical networks.

In the “Dual Gigabit Network Coordinated Development Action Plan (2021-2023)” issued by the Ministry of Industry and Information Technology a few days ago, it was proposed that by the end of 2023, the Gigabit optical fiber network will have the capacity to cover 400 million households. Broadband users exceeded 30 million, and 100 gigabit cities were built.

The government work report was written for the first time, and the Ministry of Industry and Information Technology issued a specific construction action plan. The “Gigabit Optical Network” has now entered the fast lane of development. Zhang Haiyi, deputy director of the Institute of Technology and Standards of the China Academy of Information and Communications Technology, said at the forum that my country’s gigabit optical network construction is in a “climbing period” and the principle of “moderate advancement” needs to be considered, and 10G PON, OTN and other digital bases should be accelerated. Network capacity building.

In this context, Guangxi, Shandong, Shenzhen and other places have begun to increase the construction of gigabit optical networks, and some of them have put forward clear construction goals. Ye Songhua said that in the next three years, Guangxi Telecom plans to build 14 cities into “Gigabit Cities” to strengthen the coordinated development of Gigabit optical networks and 5G; Li Zhuangzhi, technical director of Shandong Unicom’s Network Department, also revealed that Shandong Unicom will be Fully open the integration of cloud and light to explore, and combine the needs and characteristics of government affairs, finance, medical, manufacturing and other industries to provide industry solutions.

Construction and landing require the efforts of all parties

In fact, it is not simple to promote the construction of gigabit optical networks in an all-round way.

Jin Yuzhi said that the “secondary reform” put forward two new requirements. First, it is necessary to realize Gigabit home access on the home side, including further upgrading from FTTH to FTTR (Fiber into the room), home Wi-Fi speed to realize Gigabit and so on. Second, on the industry application side, Gigabit optical networks should be used to collaborate with 5G to promote the digital transformation of thousands of industries.

The first is FTTR, which connects optical fibers to every room. Huang Zhiyong, vice president of Huawei’s transmission and access product line, told reporters that neither the twisted pair technology nor the power line technology can carry gigabit bandwidth. “The carrier of the power line is hundreds of megabytes and the bandwidth is limited, so fiber optics must be deployed. In the future, gigabit, two gigabit or more bandwidths may be needed. The advantage of fiber optics is that the bandwidth is unlimited and it has a life span of 30 years after deployment. ”

However, Huang Zhiyong mentioned that in the past, the Ministry of Housing and Urban-Rural Development did not have a clear standard for putting optical fiber into the room. Therefore, Huawei is now cooperating with the Ministry of Housing and Urban-Rural Development, hoping to bury optical fibers directly in the rooms in commercial office buildings and residential communities. “The FTTR road requires not only policy support, but also the cooperation of upstream and downstream companies including home improvement companies, operators, Huawei, and real estate developers.”

According to the data, from the perspective of the development of gigabit broadband access services, as of 2020, 70 provincial telecom operators in China have launched gigabit broadband commercial packages; the number of gigabit subscribers in my country has reached 6.43 million, which is higher than that. At the end of the year, there was a net increase of 5.53 million households.

However, “speeding up and reducing fees” is also the focus that the government has always mentioned. Last year’s government work report clearly put forward the requirement of “a 15% reduction in average rates for broadband and dedicated lines”, and this year’s government work report also clearly required that SMEs’ average broadband and dedicated line tariffs be reduced by another 10%.

Under the trend of “speed up and cost reduction”, how can operators and equipment manufacturers make profits? Huang Zhiyong told reporters, “Huawei’s idea is to reduce the transmission cost per bit through a large number of technological innovations on the one hand. On the other hand, to make network construction more efficient through a large number of scenario-based and architectural innovations. One point of view is to’improve quality and speed’, and ultimately transform the previously mentioned demographic dividend into an experience dividend by satisfying the differentiated experience of customers.”

While major operators are investing heavily in the construction of 5G, they must also promote the upgrade of gigabit optical networks. Therefore, in addition to the implementation of gigabit optical network construction and tariff issues, the investment cost of F5G construction is also the focus of attention from the outside world.

Huang Zhiyong said that the investment in the F5G era from F4G, GPON to 10GPON did not increase much, because the most difficult money to spend in the “optical in and copper retreat 1.0” was to unplug the copper wires and deploy optical fibers in the GPON era. The 100M F4G era 80% of the cost has been invested. Therefore, when upgrading from 100M to Gigabit, 80% of the investment does not need to be moved. Only the OLT board and Gigabit optical modem of the central office are upgraded. The F5G Gigabit access investment may be 1/10 or even less than that of 5G.

Exploring “application scenarios” is the key

The wave of 5G is rolling forward, and the current 5G-oriented application exploration for the B-side is also a hot spot. Industry convergence applications are accelerating, while the application exploration of Gigabit optical networks is relatively small compared to 5G. In the development of gigabit optical network, the foundation is under construction and the key is in use. How to promote the innovative application of gigabit optical network is the focus of attention of all parties at present.

Wei Leping, executive deputy director of the Communication Science and Technology Committee of the Ministry of Industry and Information Technology, once said that Gigabit optical network access is not only a supplement to Gigabit 5G access, but even better than 5G in many performance parameters. 5G applicable business scenarios include outdoor mobile scenarios and scenarios where optical fiber is difficult to deploy. The advantages of optical fiber are the coverage of fixed scenarios such as homes, offices, workshops, medical care, and video surveillance, as well as scenarios with high-bandwidth and high-quality networks.

Fixed scene is the dominant area of ​​optical fiber. Source: Photograph.com

However, the current level of my country’s optical fiber network and 5G network has led the world, and it has entered a “no man’s land” in terms of “dual gigabit” network applications, and is in the stage of concentrated exploration and research.

Jin Yuzhi said that scenarios such as education informatization, medical digitization, and industrial Internet are all application scenarios for Gigabit optical networks: in universities, teaching and life scenarios are responsible, and the number of users is huge; hospitals also face problems such as large amounts of data and high transmission pressure, and In telemedicine, low latency and so on are required.

At the forum, Zhu Suishong, director of the Network Technology Department of Shenzhen Nanshan People’s Hospital, shared the innovative application of “all-optical network” in smart medical care. Zhu Suisong said that after the hospital adopted the “All Optical Park” solution, the network was stable and reliable, and the access time of the medical imaging system was increased from nearly 20 seconds to less than 1 second. At the same time, based on this network, the medical record sharing referral of 89 social health clinics and 5 general hospitals of Xiehe Shenzhen Hospital has been realized.

According to him, an ordinary CT light film is very difficult to understand for most patients, but a complete set of three-dimensional medical images can effectively make patients aware of their condition, but such three-dimensional images require three hundred Only one CT light film can be composed. The blessing of the gigabit optical network has greatly increased the speed of the hospital’s access to the medical imaging system, making it possible to construct more three-dimensional medical images.

In fact, Huawei has been exploring the application scenarios of gigabit optical networks. Huang Zhiyong told reporters, “In to B scenarios, such as mines, in fact, F5G is particularly needed. Because there are many tree-shaped roadways in the mines, it is very difficult to transmit wireless signals in the roadways, and there are flammable and explosive scenes under the coal mine. F5G has a large bandwidth and time The extension is low, and technology based on industrial PON or optical is not possible, which can greatly reduce the number of explosion-proof boxes.”

Huang Zhiyong also mentioned that in some strong electric manufacturing scenes, such as automobile processing and some welding igniting scenes, the charged ones are not as good as the anti-interference effect of optical fiber, which is also suitable for F5G scenes. It is understood that in order to explore more application scenarios, Huawei will launch the “Light Chaser 100” action plan, focusing on education, environment, health, development, production and other 5 areas in the next 5 years, and implement at least 100 gigabit optical networks. Application project.

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