The world's first 4G smart cell phone will be on sale

The world's first 4G smart cell phone will be on sale

When we become familiar with a variety of magical effect of 3G cell phones, 4G cell phone has come before us.

June 6, HTC cell phone operators sold the world's first 4G smart phones Evo 4G in the United States. The price of Evo 4G is 599. It is sold 200,000 units only one weekend in the U.S. market.

The Nokia, Siemens, Ericsson, etc also take aim at the 4G cell phone market. They had also introduced the concept of 4G cell phones before then.

What is the difference between 3G and 4G? Why is 4G sought after by commercial? Who will pay for the 4G?

G is short for the English word generation. The so-called 4G is the fourth generation cell communication technology. What is the difference4G and the 2G, 3G?

2G is the second-generation cell communication technology. It relies on GSM technology, and offers voice services of calling. In China, 2G technology occupies the most of the cell communications market. You can connect with the Internet with 2G cell phones, but the speed is very slow and the data transfer rate is 9.6kbit / s, the speed is almost same with fixed telephone dial-up.

3G concept came into our lives just last year. The main difference with the 2G is the speed upgrade of voice and data transmission. The maximum data transfer speed of 3G is up 2Mbit / s, which is 200 times as 2G. 2G was mainly calling, while you can watch the video with 3G.

The transfer speed of 4G is faster than 2G and 3G. For example, the WiMax networks 4G network standard launched by U.S. carrier Sprint to, whose data transmission speed is up to 30 times as 3G. Therefore, 4G can transmit high quality video images; its image quality is neck and neck with the high-definition television transmission.

In theory, the 4G cell phone with a high speed Internet can act as a live camera. For example, for some reason you can not attend a friend's wedding, you can see the site throughout the process 4G cell phones; encounter someone in a car accident injury, you can let off-site doctor clearly observed in the injured condition with the 4G cell phones and so.

July 2009, Scott Schneider wrote in the book of "Wireless World: How to compete in the 4G revolution": the speed of the fourth generation wireless technology (4G) is faster than all the wireless technologies we had experienced, and more impact. He predicted that, by creating "a huge wireless eco-system" - an innovative ecosystem after another, 4G will fundamentally change the way we work and entertainment.

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