Since the mobile 4G network is fake?

I'm a native of Hangzhou, and 4G was also in a uproar some time ago. So I went to B1 and tried it out! I use iPhone4S, **!

It's an entertainment hype. Don't take it seriously!

In fact, the 4G network of the three major domestic operators is fake, the actual TD LTE and FDD LTE are signals, only LTE A (the three major operators call him 4G +) is the real 4G, in fact, there is no 4G signal in China, and foreign countries have used M) signal, now the 5G network is in a trial state, and next year foreign countries may use the U) network.

Mobile doesn't have a 4G network right now. The largest should be , which is also said to be G3. And it is a non-normative international standard.

Let's not talk about whether the mobile 4G network is real or not, everyone knows that mobile 3G is a pit. Let's talk about 4G, do you find the difference between mobile 4G and other operators? If it's not wifi, and when there is a 4G signal, you will find that the signal will fall from 4G to 2G, and then connect from 2G to 4G after hanging up.

I personally tested,Mobile has a 4G signal when dialing** can no longer use software that requires network connection,For example, a letter,Navigation and the like,Other operators can 4G will not drop,3G will fall。 I think it makes sense to be one step ahead of others if it's really 4G mobile. It's like this in my area, it's not dark.

Hand hit, look.

I went to the mobile business hall today to get a 4G**. I'm from Shenzhen. I handled a pre-deposit of 600 yuan, sent a Huawei E5375 terminal and a 4G traffic card, and returned 50 yuan per month, ** for 50 yuan 600MB national traffic, regardless of 2G 3G 4G.

Universally available across the network. On the basis of 600MB, 400MB of [4G traffic] of the province will be given. Hope it works for you guys.

This is my MIFI 4G terminal.

This is the 4G signal in my area, how about it? Ha ha.

Guangdong Mobile 4G handles business orders.

4G MIFI Terminal **.

4G for 4G phones**.

China Mobile's 4G network signal coverage is different in each place, where there is good signal coverage, there is a place with poor signal coverage, so it is impossible to clearly say which operator's signal is poor, and you can only express that the signal in a certain place is relatively poor according to your actual experience.

China Mobile's 4G is a technology independently developed by China Mobile, which is relatively less mature than the technology directly imported by China Unicom and China Telecom. The theoretical speed of mobile 4G can reach 100Mbps, while the theoretical speed of 4G of China Unicom and China Telecom can reach 150Mbps, so according to the speed of 4G, mobile is in a weak position.

The most bright advantage of the mobile network is that the signal coverage is relatively extensive, because the mobile company's funds are the richest of the three major communication operators, so the mobile company can be bored in a large area, a large range of construction of 4G base stations to enhance signal coverage, so far China Mobile has 4G base stations than China Unicom and Telecom Burning orange wide 4G base stations are more.

Based on the above analysis, the mobile 4G signal coverage is relatively wide, so that most places can use the 4G signal, but there are also places where the signal is relatively weak, so it cannot be said that the mobile signal is poor or the signal is good.

The signal quality of a certain communication operator can only be felt according to one's actual experience.

Objectively speaking, whether the 4G network is good or bad cannot be viewed from a single point of isolation, but from a statistical point of view.

Judging from the actual test:

The outdoor coverage rate of the three operators is above 98%, and China Unicom is slightly worse.

The coverage of the three operators in the indoor is better than that of mobile and telecom, with mobile mainly due to the large scale of the indoor subsystem and telecom mainly due to the high quality of the working frequency band.

Speaking with data, network quality and the number of base stations, system standard, and frequency band are related.

1) Number of base stations.

As of August 2017, the base station scale comparison of each operator is as follows:

The sum of the 4G base stations of China Unicom and China Telecom is not as large as that of China Mobile.

2) Standard. China Mobile uses TD-LTE, and China Unicom Telecom uses Oakstove FDD LTE.

At the same bandwidth, the peak rate of TD-LTE is about 1 3 different from FDD LTE, which is inferior to China Mobile.

China Mobile's bandwidth is 145MHz, Unicom has 20*2MHz+10*2MHz (uplink and downlink), China Telecom has 20*2+10*2MHz+10*2MHzMHz, and China Mobile's 4G bandwidth is superior.

China Unicom and China Telecom also have TD-LTE frequency bands, but the focus is on FDD LTE, which can be basically ignored.

3) Frequency bands. China Mobile's 4G operating frequency band is:

China Unicom's 4G operating frequency band is:

China Telecom's 4G working frequency band Liang Qin is.

China Telecom's frequency band is of the highest quality, especially the 800MHz band, which takes a big advantage.

Summary: China Mobile's 4G network is not bad, in the case of frequency bands and standards are not superior, they basically rely on money to smash out a relatively high-quality network.

Among the three operators, Unicom occupies the first place in the best of the time, location, 3G to him WCDMA, messed up, 4G to him, messed up again, what can you say except a sigh?

It still depends on the specific place, where there are many people, the station covers more signals, and the places with fewer people must be fast and the signal is relatively weak, which is the hard flaw of all operators. In addition, the strength of each local operator is different, and there are also differences in judgment.

This may be related to your mobile phone,I use LETV1SThe signal is not very good,Because the slender edge uses a metal machine letter bureau body,Blocking the letter slip vertical concession。 Moreover, the signal tower is 200m away from my house

China Mobile is a better signal to change the point, say that the network is good, the lead judgment is that the network speed of Haoxiang Unicom or Telecom is relatively fast, the network is more optimized, what about China Mobile? It is a wide range of signal coverage, and the advantage here is that the network is really not as good as Unicom Telecom.

Advantages and disadvantages of FDD compared to TDD:

Pairwise frequencies must be used. When supporting symmetric services represented by voice, the uplink and downlink spectrum can be fully utilized, but when performing asymmetric data exchange services represented by IP, the utilization rate of the spectrum is greatly reduced, which is about 60% of that of symmetric services. TDD, on the other hand, does not require paired frequencies, and the communication network can flexibly change the switching points of the channel uplink and downlink according to the actual situation, which can effectively improve the spectrum utilization of the system when transmitting asymmetric services.

2.According to ITU requirements for 3G, systems in FDD mode can travel at a maximum speed of 500 km/h, while systems in TDD mode can travel at a maximum speed of only 12 km/h. This is because the current TDD system does not reach a higher standard in terms of processing speed and algorithm.

3.The system that adopts TDD mode to work on the same frequency, and the consistency of its radio wave transmission makes it suitable for smart antenna technology, which can effectively reduce multipath interference and improve the reliability of the equipment. However, it is difficult to adopt FDD systems that use a certain frequency interval for receiving and transmitting.

It is estimated that the cost of base station equipment of TDD system is about 20% to 50% lower than that of FDD system.

4.In terms of anti-interference, the use of FDD can eliminate the interference between the base station in the adjacent cellular area and the base station in the local area, and the anti-interference performance of the FDD system is better than that of the TDD system to a certain extent.

TD-LTE and FDD LTE have fewer technical differences and more commonalities, and both can provide mobile users with a mobile Internet pick-up experience that exceeds the previous one. In the 3G era, the absolute advantage of FDD in the field of mobile communication has become a foregone conclusion, and China's TD-SCDMA has little opportunity for international development, while TD-LTE is synchronized with other mainstream international standards from the beginning of standard formulation. In order to ensure that TD-LTE technology and standards evolve, the development of network and terminal industries, and the construction and operation of networks continue to maintain a leading position, it is necessary to form a global industry that integrates with LTE FDD and develops simultaneously, and narrows the gap in market size.

Hello, in order to let more customers understand and experience 4G, China Mobile is preparing to carry out friendly customer recruitment activities in 13 cities including Tianjin, Shenyang, Shanghai, Nanjing, Hangzhou, Ningbo, Fuzhou, Xiamen, Qingdao, Guangzhou, Shenzhen and Chengdu in the first phase. China Mobile customers in these cities can log in to the China Mobile portal** to register (

After passing the review, you can get a free 4G terminal and participate in a six-month experience activity.

I heard that it is now the first trial operation in first-tier cities such as Hangzhou.

When the time comes, you can experience it in those cities.

The 4G signal strength has little effect, and it is as fast as a bar.

Then buy a mobile wifi and you're good to go.

Free replacement of 4G card is to encourage you to use mobile 4G to increase customer volume + seize the market.

What are the pitfalls of changing a 4G card for you?

I can't talk about the pitfalls, but the cost is really high!