I heard that China has built a 4G network

The underlying technology of 4G and 3G technology is quite different, so it is impossible to upgrade the entire system with only some equipment upgrades like 2G to 3G. I am still more optimistic about the 4G standard of 3GPP, that is, the LTE family, and compare the successful commercialization of 2G and 3G technology in the field of wireless communication in the recent past, so according to this analysis, the future of 4G

The mainstream is still LTE.

LTE is divided into two indications TDD and FDD, the difference between the two has been said more clearly, each has its own advantages and disadvantages, but due to.

TDD technology.

It is vigorously promoted by domestic manufacturers, so China Mobile will promote TDD more aggressively, so China Mobile is likely to upgrade to TD-LTE. However, in order to avoid unhealthy competition, the Ministry of Industry and Information Technology will definitely not let the largest operators on TDLTE, so it is not excluded that each will be divided into a system and operated separately, so that it will not lead to domestic problems due to technical problems.

Wireless communication. It's all messed up with the problem.

I don't agree with the statement downstairs, Mobile's 4G network is the fastest growing among the three major communication operators, China Mobile has 4G test sites in Beijing, Shanghai, Shenzhen and other cities, last year China Mobile had a test on the 4G network in Beijing, and pointed out the future direction of the 4G network, 4G is developing, and next year and this year will be fully tested in 20,000 outlets across the country. Since the 4G network is not yet mature, it will take a long time for it to be put into commercial use. My father, who works for a mobile company, told me this and shared it with everyone.

Many big cities have it, but only Unicom, if you use mobile telecommunications to go to ** there is none.

1. Our company has always attached great importance to the construction of 4G network, and continues to invest funds every year to increase the large-scale construction of 4G network, and set up an optimization team dedicated to the improvement of network quality, which has covered our 4G network in most provinces and cities across the country.

2. Due to the rapid development of the city, the communication network environment is also in constant change, some of the new buildings and places need time to implement the guarantee, and the dense urban housing and high-rise buildings will have a certain impact on the coverage of the signal. In addition, due to the need for property assistance in the construction of base stations, there are still certain restrictions in network construction in individual areas, and there may be a slightly weaker 4G network in some locations and indoors, and our company is stepping up efforts to improve network coverage.

3. If there is no 4G signal in your location or the signal is worse than Zaofeng, it may be due to other objective conditions. Because the signal will be affected by various factors such as topography, landform, and tall buildings during propagation, if you are in a relatively closed place, the signal will be affected. Here's how to deal with it:

Turn the phone back on and off and try again;

Swap the SIM card to a family member's or friend's phone and try again;

Check whether the signals of other Unicom users around you are normal.

4. If it still cannot be used normally after self-service troubleshooting, it is recommended that you contact the manual customer service of Unicom in the place where you belong for verification and processing, and the specific situation shall be subject to local policies.

The advantage of the mobile company in the 4G network is that it was put into use earlier and covered a larger area.

According to the 4G network investment disclosed by various operators, China Mobile will invest 46 billion yuan in 4G network; On the basis of the original investment plan of 5 billion yuan, China Telecom will transfer the 5 billion yuan originally planned to invest in the 3G network to the 4G network, and increase the investment to 10 billion yuan; China Unicom's 4G investment plan is 5 billion yuan. It can be seen that the coverage area of mobile 4G network will be significantly higher than that of China Telecom and China Unicom.

From the perspective of investment, the 4G network coverage of the mobile company will be far ahead, and due to the early construction of the mobile company's 4G experimental network, the time for the network to be put into use will also be half a year ahead of China Telecom and Unicom.

After the launch of 4G, China Telecom and China Unicom may use the advantages of FDD rate and terminal to focus on campus and inbound markets.

Although China Telecom and China Unicom are in converged networking mode, they will still focus on FDD for network construction. At present, the FDD system has been commercialized in hundreds of countries and regions around the world, and the maturity of the industrial chain is significantly higher, and the network stability will also be better than TDD. Due to the relatively small investment in 4G by China Telecom and China Unicom, they can only cover key areas and key markets such as campuses and commercial buildings.

Therefore, the campus and inbound market will become the main areas of 4G business of China Telecom and China Unicom. The abundant FDD terminals will also become a powerful tool for the development of 4G services of China Telecom and China Unicom.

To this end, mobile companies must not only expand their 4G business quickly, but also firmly occupy the above two key markets.

Mobile companies need to maximize the promotion of 4G services before China Unicom launches 4G to seize the market, the most important of which is that China Telecom and China Unicom's 4G services are likely to focus on the two major markets of campus and inbound customers. For this reason, mobile companies are likely to vigorously promote the concept of 4G and provide relatively high terminal subsidies.

Specifically, the promotion of 4G services will be divided into two phases. In the early stage, due to the relatively small variety of terminals, only a few mid-to-high-end terminals such as iPhone5 and NOT3 supported mobile 4G networks, and popular models such as mobile were often relatively out of stock. At this time, China Mobile will position 4G in the mid-to-high-end, match contracts of more than 100 yuan for 4G terminals, and promote them through contract machines.

There are all of them, and we have them in our small county.

Promotion: Hangzhou and other 6 cities have been experienced one after another.

According to the plan, China Mobile will build 10G base stations per day in Hangzhou, and 2,000 base stations will be built by the end of this year, which is expected to cover the main urban area of Hangzhou and the main urban areas of Xiaoshan and Yuhang, and initially realize the national wireless high-speed Internet access. At present, in addition to opening the 4G network on the B1 bus, Hangzhou Bauhinia Home Community has also taken the lead in enjoying the 4G network as a pilot area.

As a new generation of broadband mobile communication technology led by China, TD-LTE has been set as a 4G technical standard by the International Telecommunication Union in October 2010. It is understood that in addition to Hangzhou, Shanghai, Nanjing, Guangzhou, Shenzhen, and Xiamen 5 cities will also carry out 4G network experience.

It is worth mentioning that the smooth evolution technology from 3G to 4G network jointly developed by China Mobile Zhejiang Branch and Huawei has reduced the cost of 4G network construction by 90% and shortened the construction time of a single base station from about 2 months to 3 days.

According to the original construction method of independent network construction, antennas and other equipment should be added.

In this way, the original antenna and network equipment can be shared, and the network can be upgraded by replacing the circuit board and placing a small amount of optical fiber between the circuit board and the antenna. Zhong Tianhua, general manager of China Mobile Zhejiang, said.

Tariff: Surely it will not be more expensive than 3G.

Regarding the 4G tariff issue that netizens are more concerned about, the mobile company said that because the 4G network in Hangzhou is still in the experience stage, the 4G charging policy has not yet been formulated, but it will certainly not be more expensive than 3G.

It is understood that there are two international 4G communication standards: TD-LTE and FDD-LTE. The FDD-LTE standard was officially commercialized in Europe and the United States at the beginning of last year. As of October 2011, 248 operators around the world have confirmed their plans to deploy LTE commercial networks, of which 35 networks have been officially commercialized, and 150 companies are deploying commercial networks.

Although TD-LTE has been internationally recognized, the commercial process in China is far behind Japan, India and other countries. "The current international pattern is that FDD technology has been commercialized for nearly a year, and the enterprises that have mastered the production of TD technology and control equipment are mainly Chinese companies, but these companies are busy undertaking foreign orders. Fang Xingdong, president of the global network, said, "The domestic 4G network needs to be 'whistled' by the competent authorities, otherwise this market will not start."

Some experts suggest that in view of the fact that the cost of upgrading China Mobile's existing 3G to 4G network can be greatly reduced, and China Unicom's WCDMA network and Telecom's CDMA2000 network itself can smoothly evolve to 4G at a very low cost, China's time is ripe for large-scale commercial application of 4G. "We should seize the opportunity to promote the commercial use of 4G as soon as possible and seize the commanding heights of global mobile Internet competition. Fang Xingdong said.

In order to allow the majority of users to enjoy the 4G network, our company has successively upgraded to the 4G network for 2G 3G (except for 20 yuan prepaid cards and 3G wireless network cards) users in various cities. After upgrading, you can enjoy 4G high-speed Internet access in our 4G network coverage area without changing the card or number, using a 4G mobile phone, and opening the 4G network settings of the mobile phone.

You log in to the home page of the online business hall and click "Business Handling", "Internet Traffic" and "Open 4G Network", and eligible users can open the 4G network for free.

In addition, you can also upgrade to China Unicom 4G** to open a 4G network. Eligible 2G and 3G old users can log in to the home page of China Unicom's online business hall and click on the business to handle Upgrade 4G to upgrade 4G** or log in to the mobile phone business hall client, click on the service to handle **Change Upgrade 4G, select the 4G ** and ** content you need, click Change, and the change will take effect on the 1st of the next month.

Tips: From 0:00 on the last day of each month to 8:00 on the 1st of the next month, 2G3G old users cannot transfer to 4G** temporarily.

Xi brother Lu Lun sees the house (Sikong Shu).