"Wi-Fi 7" seems to come, what is this?

What can you do and what you can do?

What is Wi-Fi 6?Even though I just thought a while ago, it seems that Wi-Fi 6E is somewhere, and then Wi-Fi 7 appears.So I will summarize what benefits of Wi-Fi 7 and what to expect.

It gets faster for the time being

Wi-Fi 7 is faster.If you get the corresponding hardware, you should be able to experience the fastest Wi-Fi so far.What we call Wi-Fi 7 here is the official name IEEE 802.It is a standard called 11be Extremely High ThroughPut (EHT).There is no official announcement yet, but soon "IEEE 802.It is expected that the alias of 11be Extremely High ThroughPut will be the Wi-Fi 7. "

According to IEEE documents, Wi-Fi 7 is not only fast, but also has a wider band, and there is a "revolutionary change that will become a further evolution of Wi-Fi".MediaTek even says that it can be an alternative to Ethernet (wired) connection.

What happens with Wi-Fi 7?

The detailed specifications may change until it is built into the gadget, but the direction is generally known.To summarize the benefits of the user, more devices can enjoy faster communication for a long time.

Like Wi-Fi 6E, Wi-Fi 7 is 2.Using three bandwidths, 4GHz, 5GHz, and 6GHz, the transmission speed is up to 30Gbps.Wi-Fi 6e is up to 9.Because it is 6Gbps, it is quite fast.However, since this is a theoretical value, it does not actually come out at home.

Wi-Fi 7 uses various methods to improve performance.First, the maximum bandwidth is 320MHz, which is reduced by doubling the conventional 160MHz.Combined with 6GHz compatible, it is expected that the interference between gadgets will be reduced, and smartphones, tablets, PCs, game consoles, smartwatches, smart speakers, etc. will be confused to connect to the Internet.

The other is the reduction of latency.Wi-Fi 7 uses a variety of techniques so that data requests can be accepted almost without delay.One of the techniques is the Multi-Link Operation (MLO), which allows the device to maintain multiple connections at the same time.

MU-MIMO (Multi-User, Multiple-Input, Multiple-Output) is also an important technology.The maximum number of spatial streams to the client terminal has increased from eight to 16, that is, the number of routes that can exchange data in parallel increases, and even more devices can be connected to the router.

Other technologies added in Wi-Fi 7 are Time-Sensitive Networking (TSN), Quadrature Amplitude Modulation (QAM), Orthogonal Freequency-Division Multivision MultiPle ACCESS (OFDMA), etc.It is difficult to understand without knowledge.Anyway, it is a technique that will speed up the data, and to deliver more efficiently to more devices.

Is there a merit in our environment?

The goal of Wi-Fi 7 is to meet the needs of current Internet users.In other words, we want to connect dozens of devices to one wireless router using video streaming, video phone calls, online games, VR, AR, etc. to one wireless router.

Adjustment between access points should also be improved with Wi-Fi 7.As a result, the mesh network, which has become common in large buildings, can manage data and devices more efficiently in Wi-Fi 7.Roughly, you can connect more devices, even faster, more, even if you are moving around.

What Wi-Fi 7 cannot do

Conversely, what Wi-Fi 7 cannot do is to increase the Internet line speed from the provider, behind the wireless router.Unless the broadband itself is improved, Wi-Fi technology does not change much.Since the introduction of Wi-Fi 7 is a company or various business use, the first thing you can feel about the power of Wi-Fi 7 may be not the house but the office or the go.If you can use 5G on a daily basis, it may not be.

Also, it may take some time to see Wi-Fi 7 compatible devices.The specifications of Wi-Fi 7 have been considered over the years, but the official debut may not be possible within 2022, and it will be installed on consumer hardware.In other words, even those who are using Wi-Fi 6 or Wi-Fi 6E routers will not worry about being outdated soon.

Wi-Fi 7 devices are backward compatibility.In other words, it can be used together with old devices, but if a non-compatible device is included, the benefits of Wi-Fi 7 will not be used.However, it is difficult to upgrade the environment of the house at once, so I guess it would be better to do it one by one.