Does the mobile phone signalbar of the small partners have arisen? 3G, 4G can also understand, but like g, e, h, h +, etc. not understand?
Today, Xiaobian will answer, maybe the friends will be shocked by the upgrade of the network!
Big open eyes, how much do you know?
Signifier: g
G is the abbreviation of GPRS. It is a network system available for GSM mobile phone users. It represents the current mobile phone data network. The second generation mobile communication data transmission technology is between 2G and 3G. The transmission speed is only 114KB / s, under this network, WeChat voice messages are very slow.
Signal ID: E
E represents the EDGE network, a network system between GPRS (2.5g) to 3G, which is slightly faster than GPRS. Before 4G appears, the most common in China is this network system.
Signal ID: 1X
1X is China Telecom's 2G network mode. Its theoretical transmission speed is only 173kb / s, and the transmission speed is also slow, only slightly more than the Edge network mode.
Signal ID: T
TD-SCDMA is a referusion of Time Division-Synchronous Code Division Multiple Access, which is a third-generation mobile communication standard proposed and developed by China. Although it belongs to the third generation of communication technology, because the technology is not mature enough, it is actually less than 2G.
Signifier: 3G
What do you mean by guess? 3G represents a faster and more stable transmission speed, which occurs with mobile phone applications.
Signifier: h
H is an abbreviation between HSDPA (High-Speed Downlink Packet Access), between 3.5G, which is generally called 3.5g, in theory, maximum transmission speed of 14.4 Mbps.
Signifier: h +
Seeing this symbol, you should understand that it is "H" upgraded version, is HSDPA's enhanced version of HSPA + (High-Speed Packet Access +), belongs to 3.75G network, speed faster, up to 42 Mbps transmission speed.
Signifier: 4G
4G is now the network mode used by most people, representing the fourth-generation mobile communication technology, compared to 3G, 4G running speed and stability, and more upstairs. It can quickly transfer images, audio, video and other data, with transmission speed up to 100 Mbps.
Signal ID: 4G +
This is also very simple, it is an upgraded version of the 4G network, and the peak network speed can achieve an amazing 330 Mbps.
Now let's get rid of it, the transmission speed of these network mode is:
4 g + >4g>h + >H>3g>t>1X>E>G.
Now you understand why the phone signal bar sometimes shows different symbols? Mobile communication technology has developed to today, a total of 4 generations of communication technologies (now the 5th generation has emerged, but it is not officially commercial), 1G, 2G, 3G, 4G, respectively.
Although in most cases, our mobile phone will display 4G symbols, but if the network environment is poor, the phone's signal bar will switch to these various symbols.
There is also a "strange" situation, clearly the mobile phone shows the signal full, but the results can not be connected, and no symbols are displayed.
This situation has two reasons: First, you have passed the mobile data network of your mobile phone. Second, the mobile phone arrears, the network operator gives your mobile data network.
In addition, some small partners may find that sometimes the mobile phone is clearly 4G or 3G network, but it is not online. In the face of this situation, usually you just want to turn the mobile phone mode, then open, let the system re-searches the network, usually can be online.
From slowly like a snail crawling 2G, you can now play 4G of the network video, and the upcoming 5G, the speed is 5G, the network speed of your mobile phone is getting faster.
Recalling that the same year and the small partners will watch the graphic competition, see the moment that appears, it will be very surprised, and now this feeling has already gone, I don't know if you have the same feelings? Read more
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