This article is from public number: Uncle Cat in Silicon Valley (ID: leo77zheng) < span class = "text-remarks">, the title picture comes from: Oriental IC, the original title: “What is 5G? The mobile network in the United States is really incomparable with domestic ones. . . 》
Hey, what exactly is this 5G network experience?
I live in Silicon Valley, the center of US science and technology innovation, and live in San Jose, the tenth largest city in the United States with a population of one million. Looking at the first and second tier cities in China, 5G networks are being laid. Not to mention the 5G network is laid, even the basic mobile network coverage, the United States is really incomparable with domestic ones.
The area of the United States is slightly smaller than that of China; but its population is only 330 million, less than a quarter of the country. The size of the city and the country are not at all a level. With a population of 1.03 million, San Jose is already the tenth largest city in the United States. The largest city in the United States, New York, with a population of 8.4 million, is only one-third of China’s largest city, Shanghai. It has a population similar to that of Xi’an, and can only rank 23rd in China. The second-largest city, Los Angeles, has a population of only 4 million, and it is not even ranked in the country. The third largest city, Chicago, has a population of 2.7 million, which is about the same as the population of Jiamusi or Mudanjiang in Heilongjiang.
I still use the network of Verizon, the largest carrier in the United States. Not only does this year’s 5G network cover 18 cities without Silicon Valley, it hasn’t even seen more than 20 cities listed in 2020. Change operator? Useless, the 5G networks currently deployed by the four major US carriers do not include Silicon Valley and San Francisco.
Some friends used the service of AT & T, the second largest operator, and got off the plane at San Jose Airport, and found that the mobile phone suddenly became a 5G network. I can’t help but bemoan me, “Silicon Valley is advanced, and 5G is used in advance.”
Drag it. This is just an obstacle for AT & T marketing. If you look closely, you will find a small letter E next to 5G. What is 5G E? This so-called 5G Evolution is actually a 4G network. Even if your mobile phone does not support 5G networks at all, even if AT & T does not lay a 5G network in San Jose at all, you must give users the illusion that they are using 5G networks. Because of this marketing stunt, both Verizon and T-Mobile are onlineVarious ridicule and speculation, Sprint, the fourth largest operator, even sued AT & T for fraudulent marketing.
However, compared to Verizon, at least AT & T’s 5G roadmap for 2020 includes San Jose and San Francisco. Well, at least AT & T is headquartered in Texas, USA, and the network deployment in the west is still more focused on Verizon based in New York. In fact, Verizon and AT & T were originally one family. In 1983, the US telecom giant AT & T was forcibly split into seven subsidiaries by the government due to monopoly issues. These two are two of them.
However, even if AT & T launches 5G service in Silicon Valley next year, I’m not going to change jobs. Because there is a 5G network, there must be a 5G mobile phone. At present, the only 5G mobile phone sold by AT & T is Samsung Note 10+. The iPhone will not support 5G until the fall of 2020. Imagine that there are so many 5G mobile phones in China now. The US smartphone market is too lacking in competition.
Interestingly, U.S. President Chuan Jianguo also asked Apple to help the United States build 5G. Perhaps he didn’t respond. Apple does not have a 5G telecommunications business at all, and has no right to speak in this field. In order to 5G baseband chips, they have to be forced to reconcile with Qualcomm. However, to understand from another perspective, if the 5G iPhone is fully popularized, it will indeed prompt operators to further invest in 5G networks.
Can Apple use 5G? It depends on Qualcomm. Qualcomm CEO Molenkov said in an interview with CNBC in the United States last week that in fact China’s 5G technology is similar to the United States, but China’s 5G base station deployment speed is faster than the United States. This is the first time that China has been at the forefront of mobile communication technology deployment. The previous 4G and 3G network deployments were two or even five years behind.
Market research firm Bernstein expects 150,000 to be deployed in China by the end of this year5G base stations, South Korea ranks second with 75,000 (South Korea has always been one of the best in network infrastructure) , while the United States ranked third is only 1 10,000 base stations. By the end of 2020, there will be 100 million 5G users in China.
So what exactly is the current 5G network in the United States? It’s just getting started.
Aside from the fake 5G, AT & T announced at the end of last month that it plans to launch 5G networks based on the Sub-6 band in five US cities this month, and then expand to 10 other cities in February next year. (San Jose finally appeared) . The previously announced millimeter-wave spectrum 5G will be used for commercial 5G (AT & T calls it 5G +) .
T-Mobile, the third largest mobile operator in the U.S., officially announced this week the launch of “the first nationwide 5G network in the U.S.” . Sounds like the T-Mobile corner is overtaking? not at all. T-Mobile, which claims to cover the entire 5G network in the United States, actually only covers 200 million people, and there are still 130 million people who are unhappy. Covering less than two-thirds of the population, but also covering the entire United States? In addition, T-Mobile’s 5G network actually uses low frequency, which is the 600MHz spectrum used by the LTE network that they bought at auction two years ago.
As you can see, in addition to the unwillingness to invest huge amounts of money to lay out the network, there is another direct reason for the slow deployment of 5G networks in the United States-the lack of low-frequency spectrum. Verizon’s Ultra Wideband 5G usesMeter wave, so progress is very slow at present, because compared to low-band Sub-6, although millimeter wave can bring higher network speeds easily breaking 1Gbps, but there are inherent defects in penetration and coverage, it needs to be more Many base station laying investment. The US’s low-frequency spectrum has previously been heavily occupied by the government and the military, and private operators have a higher acquisition cost. The three major state-owned operators in China have much less difficulty in this regard.
In fact, I do n’t even talk about 5G networks. There are still many areas in the United States that ca n’t even provide basic network coverage. Not to mention the Internet, not even phone text messages. The network coverage maps of the four major operators all have huge network-free gaps in the Midwestern United States. Because of the vast area and sparse population, the return on investment of operators in laying base stations is too low. Private operators are unwilling to install base stations in these mountainous or wilderness areas, or agricultural areas, even if there are still some residents in these areas. After all, operators are not public welfare organizations, and profit returns to shareholders are the top priority.
However, there are at least one thing about US carriers. It is especially convenient to carry a number. As long as you pay off the arrears, you don’t even need to go to the business office, provide an account to confirm your identity, and you can get it in twenty minutes.
Not long ago, a Chinese female teacher was a visiting scholar in the United States. She disappeared for two days and made domestic families anxious. Finally, she learned that she went to an area without internet coverage. Actually, this is too common in the United States. A friend went to Yosemite National Park for two days before and didn’t say hello to the family in advanceIn the same way, it became a lost contact, and domestic families have various fears and fears. Even in Silicon Valley, driving into the mountains for a while, or going to the central agricultural area, you will soon enter the no-signal zone.
So how do the residents in these non-network areas solve their communication needs? Sparsely populated areas can really only enjoy natural life. If there are some residents, in addition to the four major operators in the United States, there are also small local operators with a small coverage area. In areas where the four major operators are unwilling to do, these small operators will lay the network by themselves, but the coverage area is also quite limited. Because of insufficient economic strength, before the US government issued a ban last year, these small Midwest operators purchased a lot of Huawei’s telecommunications equipment due to cost considerations.
Say something interesting. In the past few years, many people have expressed their feelings on Weibo. Domestic people in the subway only know to brush their mobile phones while foreigners read books on the subway. Yes, this is a fact; but this is because foreign subways do not have internet coverage and can only pass the time by reading books and newspapers. In 2017, the New York subway finally achieved network coverage. Now if you go to New York to take the subway, you will find that Americans and Chinese are no different, they are both holding their phones and swiping.
China also wants to reach out to Europe and the United States. In 2011, Huawei proposed to contribute 50 million pounds to help mobile phone networks in the London Underground. But the British government rejected Huawei’s big gift package on the grounds of national security. I remember that there were many experts at the time that the British just didn’t like the subway to have a network, hoping that there would be no interference.
It’s another tear. Addiction to mobile phones is the collective carnival of all human beings, the more depraved the happier. This summer, the Transport for London has finally announced that it will lay a new cable of 2,000 kilometers long to achieve a 4G network in the next year. British netizens have said that they are very happy, it is really fragrant.
However, the biggest wish of London residents for their subway is not to connect to the Internet, but to install air conditioning. Yes, 9102 is about to pass. There are many more in London, the British capital.The subway cars are not air-conditioned.
Are you using 5G?
This article is from the public number: Uncle Cat in Silicon Valley (ID: leo77zheng) < / p>