What is 5G wireless WiFi?
The so-called 5G wireless WiFi (802.11ac) refers to the fifth-generation wireless WiFi transmission technology and runs in the 5Ghz radio wave frequency band (the G here is not the 3G or 4G network we are talking about on the wide area network). Most of our wireless WiFi now uses the fourth generation 2.4Ghz.
In layman's terms, we can imagine the 2.4Ghz and 5Ghz frequency bands as highways. If you want to go on this road, you must abide by the rules of the road. Because the 2.4Ghz high-speed, not only the speed is only 60, and in addition to wireless WiFi, wireless devices such as wireless mice, keyboards, earphones, etc. use this frequency band. Think about how many such wireless devices around you know how much it is Crowded.
On the 5Ghz highway next door, not only the road conditions are good, but the speed limit reaches 200. Those who fail to meet the requirements will not be allowed to go on the road. There are not many cars that qualify for the road, so there are very few cars on this road.
There is a misunderstanding here, that is, the wireless WiFi running in the 5Ghz frequency band is 5G wireless WiFi, which is not the case.
The wireless WiFi protocol standards operating in the 5Ghz frequency band include 802.11a (first generation), 802.11n (fourth generation, running in 2.4Ghz and 5Ghz dual bands at the same time) and 802.11ac (fifth generation), but only the 802.11ac protocol Wireless WiFi is the real 5G wireless WiFi).
What are the benefits of 5G wireless WiFi
(1) Have a faster network and get rid of congestion
The world's fastest wireless WiFi transmission speed is only 300Mbps (a few can reach 600Mbps), which is equivalent to only about 36MB of content per second. This speed is not enough for current needs.
In the local area network, a 500MB file is copied to the mobile phone through a 5G wireless WiFi router, and the average value is calculated 5 times. The result is about twice as fast as the 2.4G wireless WiFi device, for example, S4 is 4.66 MB/ s, the peak value of S3 is 2.53 MB/s (broadband and router configuration are different, the actual result will be different).
(2) Improve playback quality
As 5G wireless WiFi has a transmission speed of up to 125MB per second, not only the download is faster, but also the online HD video is smoother.
(3) Mobile phone saves more power
One of the major advantages of 5G wireless WiFi is energy saving-because it takes less time to download things of the same size, the device can enter the low-power power-saving mode faster. For example, Broadcom's 5G wireless WiFi technology can reduce the power consumption rate of mobile devices by 83%, thus extending the operating time of the device.
(4) Better signal quality
As mentioned above, the domestic 5Ghz frequency band is used less, radio interference is greatly reduced, and the signal quality is naturally better.
But 5G wireless WiFi also has its shortcomings, such as poor signal penetration.
Although the anti-interference and transmission data volume of 5Ghz is larger than that of 2.4Ghz, it is mainly used in unobstructed situations, such as non-through walls, and generally works well within 5-10 meters, but the signal propagation ability of 5Ghz is worse than 2.4Ghz. If the home needs to go through walls or other electronic devices, 2.4Ghz will perform better.
How can I experience the real 5G wireless WiFi network
Optical fiber network + 5G wireless WiFi router + 5G wireless WiFi mobile device = true 5G wireless WiFi network From the above "formula" we can see that a good horse is equipped with a good saddle. If you only buy a mobile phone that supports 5G wireless WiFi, you cannot experience the 5G wireless WiFi network.