How to choose a Wi-Fi 6 router, 7 points
What is Wi-Fi 6 good?
Wi-Fi 6 is a wireless LAN standard that will certainly be the mainstream of future Wi-Fi devices.
Officially "IEEE 802.The standard called "11ax", the maximum speed on the standard is 9..Although it is 6Gbps, the current product can achieve up to 4804Mbps (160MHz width x 4 streams, or 80MHz width x 8 streams).
Technically, various ideas have been devised, but there are three points when it comes to "what is good?"
- 速い
- 同時通信が快適
- 省電力に効く
1.速い
"Fast" is the maximum speed of up to 4804Mbps mentioned above.At present, it is not possible to communicate at this speed.This is because the maximum speed on the terminal side such as PCs and smartphones is lower.At present, the PC is up to 2404 Mbps (160MHz width 2 stream) and up to 1200Mbps (80MHz width 2 stream) for smartphones such as iPhone 11.
Nevertheless, the conventional Wi-Fi 5 (IEEE 802).Compared to 11ac 867Mbps), it is almost 3 times on a PC, even with a smartphone.You can get about 5 times the speed.
The speed of Wi-Fi depends on the distance, the shield, and the surrounding radio waves, so it cannot be said unconditionally, but it can be expected to increase the speed not only at the maximum speed but also at a distance.For this reason, it is more likely that communication in the same place will be more comfortable compared to the conventional Wi-Fi 5 router.
2.同時通信が快適
The next "simultaneous communication" is realized by the technology called OFDMA or MU-MIMO.To put it simply, it is a technology that allows the radio waves to be able to "phase", both of which are handled by multiple terminal communication at the same time, so that even if many terminals are connected, a high speed can be achieved.
Actually, it is not very meaningful in an environment where the current Wi-Fi 5 terminal is mixed, but if you choose a triband-compatible product described later, you can use the 5GHz band and use it properly in other than the Wi-Fi 6 compatible machine.You can receive the benefits of this technology.
3.省電力
The last "power saving" is realized by a function called "TWT (Target Wake Time)" of Wi-Fi 6.This is a difference in how to hold an "alarm clock".
In the conventional Wi-Fi 5, multiple devices used a common alarm clock.For this reason, even if a non-communication device tries to save power by turning off Wi-Fi, it may be caused by an alarm clock set by another terminal.
TWT uses your own alarm clock, so you can wake up your terminal individually.As a result, Wi-Fi does not need to consume power in vain.
At this time, it is difficult to verify, so it is unknown how effective it is, but in any case, it is not only faster than the conventional Wi-Fi, but the performance and quality of various parts have improved.is.
