From this month, 6 cities including Hangzhou will be the first to experience 4G networks

Starting this month, 6 cities such as Hangzhou will be the first to experience 4G networks in China, but they will have to wait for commercial use. Mobile companies say that 4G tariffs are definitely not more expensive than 3G. Starting from April, the Hangzhou B1 BRT line will open 4G networks for free, making Hangzhou the first city in China to open 4G networks. However, at present, Hangzhou's 4G network is still in the experience stage and has not been truly commercialized. So, is the 4G era really coming? How far is 4G from us?

Buffer the movie for two or three seconds

The reporter recently boarded the B1 bus and started the 4G experience journey. According to reports, China Mobile has installed wireless routers on the front and rear of B1 and on bus platforms, which can convert 4G networks into WIFI signals. According to the prompt of the mobile staff in the car, the reporter turned on the WIFI, connected to the wireless network of "CMCC-4G", then opened the webpage with the SaFaRi browser that comes with the mobile phone, and the mobile phone immediately jumped out of the "China Mobile Communications 4G Network Experience" page , Click "start experience", you can go online.

Is the 4G network as fast as the legend? The reporter opened the PPTV video player and randomly opened a movie "Aromatic City", which was buffered in three or two seconds. Such a buffering speed is difficult to achieve in a 3G network environment. Then, the reporter downloaded a 4M big "not so simple" song. Just after clicking the "download" button, I heard "ding" and the download was completed.

It is understood that when the network signal is good, it takes only 1 second to download a 7M high-quality song on the 4G network; only 2 minutes to download a 700M CD; to download a 2.8G British Encyclopedia, 8 It can be completed in minutes; download a Blu-ray 3D movie with a capacity of 40G. The average family 4M broadband needs one day to complete, but mobile 4G only takes two hours.

However, the speed of the reporter when downloading high-definition movies on the B1 car is not ideal, and the average rate is about 450KB / S. The staff explained that currently on the B1 bus, the 4G test network speed can reach up to 70M, generally stable at about 40M. If multiple people in the car are watching or downloading high-definition video at the same time, there will be excessive network pressure.

Promotion: Experiences in 6 cities including Hangzhou

According to the plan, China Mobile will build at the rate of 10 4G base stations per day in Hangzhou area. By the end of this year, 2,000 base stations will be built. It is expected to cover the main urban area of ​​Hangzhou and the main urban areas of Xiaoshan and Yuhang. At present, in addition to the opening of the 4G network on the B1 bus, Hangzhou Bauhinia Homeland is also the first to enjoy the 4G network as a pilot area.

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

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

"According to the original independent network construction method, it is necessary to add antennas and other equipment. Now in this way, the original antenna and network equipment can be shared, as long as the circuit board is replaced, a small amount of Optical fiber can achieve network upgrade. "Zhong Tianhua, general manager of China Mobile Zhejiang Company said.

Tariff: certainly not more expensive than 3G

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

It is understood that the current international 4G communication standards include TD-LTE and FDD-LTE. The FDD-LTE standard was officially put into commercial use in European and American countries early last year. As of October 2011, 248 operators worldwide have decided to deploy LTE commercial network plans, of which, 35 networks have been officially commercialized, and commercial networks of 150 companies are being deployed.

Although TD-LTE has received international recognition, the commercial process in China lags far behind Japan, India and other countries. "The current international pattern is that FDD technology has been in commercial use for almost a year. The companies that master TD technology and control equipment production are mainly Chinese companies, but these companies are busy taking orders from abroad." Fang Xingdong, President of Global Networks, said, "Domestic 4G network Launching requires the competent authority to 'whistle', otherwise this market will not start. "

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

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