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What is Wi-Fi 7? What is Wi-Fi 7, when will it be introduced in Japan, and how does it differ from Wi-Fi 6 and 6e?
January 24, 2023 / Updated: January 24, 2023
When will Wi-Fi 7 be introduced in Japan?
https://ivry.jp/column/wix-ivry/
What is wi-fi 7?
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What is Wi-Fi 7? When will it be introduced in Japan?
Wi-Fi 7 is the name of a new communication standard that greatly exceeds existing wireless communication performance.
It is said to be able to provide wireless communication that is not much different from a wired connection using a LAN cable, and many people may be curious about it.
In this issue, we will explain what kind of wireless standard Wi-Fi 7 is, how it is superior to Wi-Fi 6 and Wi-Fi 6e, and when it will be introduced.
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What is Wi-Fi 7?
Three reasons why the introduction of Wi-Fi 7 is eagerly awaited
Reason 1: Ultra-high-speed communication with a maximum transmission speed of 46 Gbps can be achieved.
Reason 2: Latency is improved when connection delays occur.
Reason 3. more devices can be stably connected at the same time
5 Differences between Wi-Fi 7 and Wi-Fi 6/6e
Difference between Wi-Fi 7 and Wi-Fi 6/6e (1) 320 MHz channel width is available in the 6 GHz band
Difference between Wi-Fi 7 and 6/6e (2) 4096 (4K) QAM improves transmission speed by approximately 20%.
Difference between Wi-Fi 7 and 6/6e (3) Communication is possible with up to 16 antennas
Difference between Wi-Fi 7 and 6/6e (4) MRU support stabilizes the connection environment for multiple devices
Difference between Wi-Fi 7 and 6/6e (5): MLO function significantly improves communication quality for specific terminals
When will Wi-Fi 7 be introduced in Japan?
Wi-Fi 6 and 6e compatible routers are recommended for now
Let's introduce Wi-Fi 7, the communication revolution, after 2025!
What is Wi-Fi 7?
Wi-Fi 7
Wi-Fi 7" is the name of the next-generation wireless LAN following Wi-Fi 6e, and is a wireless standard called "IEEE802.11be Extremely High Throughput (EHT)" to be precise.
It is said to have significantly higher transmission quality than Wi-Fi 5 (IEEE802.1ac) and Wi-Fi 6 and 6e (IEEE802.11ax), which are commonly used in Japan.
Three reasons why the introduction of Wi-Fi 7 is highly anticipated
The following three reasons are particularly noteworthy from the user's perspective as to why the introduction of Wi-Fi 7 has been eagerly awaited.
＜The advantages of Wi-Fi 7 are as follows.
(1) High-speed communication at a maximum transmission speed of 46 Gbps (theoretical value) is possible.
(2) Improved latency when connection delays occur (improved communication stability).
3. more terminals can be stably connected at the same time.
Reason 1: Ultra high-speed communications with a maximum transmission speed of 46 Gbps can be realized.
The most notable feature of Wi-Fi 7 is its maximum transmission speed of over 46 Gbps.
In fact, in a demonstration conducted by Intel Corporation and Broadcom Inc. of the U.S., Wi-Fi 7 achieved an actual measured speed of over 5 Gbps in an environment where Wi-Fi 6 and Wi-Fi 6e had a speed of 1 Gbps and 2 Gbps, respectively.
We can expect to see support for 8K video, AR/VR, and other applications that require high-quality communication in the future.
Reason 2: Improved latency when connection delays occur
Improved latency (connection delay) is another feature of Wi-Fi 7.
However, since the latency of wireless connections was greatly improved in Wi-Fi 6e, there is no significant difference for normal use.
What does make a difference is the latency when the connection is not stable.
In fact, data compiled by Android Police, a well-known technology media outlet, picked up on latency stability in poor connection environments.
Below is the actual data, which summarizes that the latency of Wi-Fi 7 (yellow) is more stable than Wi-Fi 6e and others.
Wi-Fi 7, 6e, and 6 latency comparison graph
(Source: androidpolice)
Reason 3. More devices can be stably connected at the same time
Wi-Fi 7 can stably connect more devices at the same time compared to Wi-Fi 6e.
Wi-Fi 6e used "8 x 8 MU-MIMO", while Wi-Fi 7 uses "16 x 16 MU-MIMO".
Simply put, it doubles the efficiency of the connection.
However, for personal use, it is difficult to master Wi-Fi 6e, so switching to Wi-Fi 7 may not make a big difference.
Nevertheless, these communication improvements are unlikely to be wasted in today's world, where the IoT is expected to be used in a variety of home appliances and other devices in the coming years.
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5 Differences between Wi-Fi 7 and Wi-Fi 6 and 6e
The following is an explanation of how Wi-Fi 7 differs from Wi-Fi 6 and 6e, which are existing standards.
The specifications for each connection standard are summarized below.
Wi-Fi 6 / 6e / 7 Feature Comparison
Wi-Fi 6
(IEEE802.11ax) Wi-Fi 6e
（Wi-Fi 6 (IEEE802.11ax) Wi-Fi 7
（Wi-Fi 7 (IEEE802.11be)
Maximum transmission speed 9.6Gbps 9.6Gbps 46Gbps
Frequency band 2.4GHz/5GHz 2.4GHz/5GHz/6GHz 2.4GHz/5GHz/6GHz
Channel width Up to 160MHz Up to 160MHz Up to 320MHz
Linear Amplitude Modulation (QAM) 1024QAM 1024QAM 4096QAM
Number of antennas (MIMO) 8 x 8 8 x 8 16 x 16
Resource Unit RU RU MRU
Others - - MLO support
TSN Function
Among them, the following five points are the most significant differences.
Channel width
Quadrature Amplitude Modulation (QAM)
Number of antennas (MU-MIMO)
Resource unit
MLO function
We will look at each of these features in detail.
Differences between Wi-Fi 7 and 6/6e (1) 320 MHz channel width available in the 6 GHz band
Wi-Fi 7 supports a 320 MHz channel width for the first time in wireless communications.
Comparison of channel widths
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Channel width Up to 160 MHz Up to 160 MHz Up to 320 MHz
The existing wireless standard (up to Wi-Fi 6e) had a maximum channel width of 160 MHz, which simply means that twice as much communication is possible.
This not only improves communication speed, but also enables more stable communication with more devices.
However, 320 MHz communication is only available in the 6 GHz band; it is not available in the 2.4 GHz or 5 GHz bands.
Difference between Wi-Fi 7 and Wi-Fi 6/6e (2) 4096 (4K) QAM improves communication speed by approximately 20%.
QAM" is "a modulation method for interconversion of radio waves and electrical signals.
In Wi-Fi 7, QAM can be transmitted at 4096 QAM/12 bits.
Comparison of QAM
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Linear Amplitude Modulation (QAM) 1024QAM 1024QAM 4096QAM
QAM up to Wi-Fi 6e had a maximum transmission of 1024 QAM/10 bits at most, so a 20% increase in transmission speed can be expected.
QAM is probably one of the factors behind Wi-Fi 7's high line speeds.
Difference between Wi-Fi 7 and 6/6e (3) Communication with up to 16 antennas
Wi-Fi 7 supports 16 x 16 MU-MIMO.
■ MU-MIMO Comparison
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Number of antennas 8 x 8 8 x 8 16 x 16
MU-MIMO" is an abbreviation for "Multi-User Multiple Input and Multiple Output," a technology that uses both transmitting and receiving antennas for wireless communication.
The number of available antennas is expressed as 8 x 8 (eight each for transmission and reception), and the more available antennas, the more comfortable communication is.
In the past, 8 x 8 MU-MIMO was the maximum communication speed, but Wi-Fi 7 supports 16 x 16, so communication here is nearly twice as fast as in the past.
This is one of the major attractions of Wi-Fi 7, as it makes communication with multiple devices more comfortable.
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Difference between Wi-Fi 7 and 6/6e (4) MRU support stabilizes the connection environment for multiple terminals
Wi-Fi 7 also supports MRU to enhance the efficiency of connecting multiple terminals at the same time.
Simply put, the MRU allows the parent device to specify the connection priority (QoS), number of channels, etc. for each child device from multiple devices.
Even when multiple terminals are connected, by assigning priority to each child, more resources can be allocated to the side of the communication where quality is more important.
*Because of its specialized nature, however, this is a feature for those who are particular about their connection.
Difference between Wi-Fi 7 and 6/6e (5): MLO function greatly improves communication quality for specific terminals
The "MLO (Multi Link Operation)" function is one of the most attractive features of Wi-Fi 7.
Simply put, the MLO function allows access to all 2.4GHz/5GHz/6GHz frequency bands simultaneously.
Up until Wi-Fi 6e, the number of frequency bands that could be accessed was limited to one: 5 GHz for 5 GHz, 2.4 GHz for 2.4 GHz, and so on.
With Wi-Fi 7, you can connect to all frequency bands at the same time, so even if there is congestion or interference in the same frequency band, you can still connect without problems.
There are many other uses for this feature, but it can have a tremendous number of benefits, including lower latency, faster transmission speeds, and improved stability.
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When will Wi-Fi 7 be introduced in Japan?
Now that we have explained the features and differences of Wi-Fi 7, when will Wi-Fi 7 actually be introduced in Japan?
Although no specific date has been set, it is expected that certified products (trial products) will go on sale during 2024, followed by solid devices in 2025.
Therefore, it will probably be 2025 before the main use of the system actually begins.
Even Wi-Fi 6e, which was introduced in 2022, is not yet widely used.
There are not many devices that support Wi-Fi 6e, and many people are hesitant to purchase Wi-Fi 6e because it is more expensive than Wi-Fi 6-compatible devices.
Wi-Fi 6 / 6e / 7 Feature Comparison
Wi-Fi 6
(IEEE802.11ax) Wi-Fi 6e
（Wi-Fi 6 (IEEE802.11ax) Wi-Fi 7
（Wi-Fi 7 (IEEE802.11be)
Maximum transmission speed 9.6Gbps 9.6Gbps 46Gbps
Frequency band 2.4GHz/5GHz 2.4GHz/5GHz/6GHz 2.4GHz/5GHz/6GHz
Channel width Up to 160MHz Up to 160MHz Up to 320MHz
Linear Amplitude Modulation (QAM) 1024QAM 1024QAM 4096QAM
Number of antennas (MIMO) 8 x 8 8 x 8 16 x 16
Resource Unit RU RU MRU
Others - - MLO support
TSN Function
Among them, the following five points are the most significant differences.
Channel width
Quadrature Amplitude Modulation (QAM)
Number of antennas (MU-MIMO)
Resource unit
MLO function
We will look at each of these features in detail.
Differences between Wi-Fi 7 and 6/6e (1) 320 MHz channel width available in the 6 GHz band
Wi-Fi 7 supports a 320 MHz channel width for the first time in wireless communications.
Comparison of channel widths
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Channel width Up to 160 MHz Up to 160 MHz Up to 320 MHz
The existing wireless standard (up to Wi-Fi 6e) had a maximum channel width of 160 MHz, which simply means that twice as much communication is possible.
This not only improves communication speed, but also enables more stable communication with more devices.
However, 320 MHz communication is only available in the 6 GHz band; it is not available in the 2.4 GHz or 5 GHz bands.
Difference between Wi-Fi 7 and Wi-Fi 6/6e (2) 4096 (4K) QAM improves communication speed by approximately 20%.
QAM" is "a modulation method for interconversion of radio waves and electrical signals.
In Wi-Fi 7, QAM can be transmitted at 4096 QAM/12 bits.
Comparison of QAM
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Linear Amplitude Modulation (QAM) 1024QAM 1024QAM 4096QAM
QAM up to Wi-Fi 6e had a maximum transmission of 1024 QAM/10 bits at most, so a 20% increase in transmission speed can be expected.
QAM is probably one of the factors behind Wi-Fi 7's high line speeds.
Difference between Wi-Fi 7 and 6/6e (3) Communication with up to 16 antennas
Wi-Fi 7 supports 16 x 16 MU-MIMO.
■ MU-MIMO Comparison
Wi-Fi 6 Wi-Fi 6e Wi-Fi 7
Number of antennas 8 x 8 8 x 8 16 x 16
MU-MIMO" is an abbreviation for "Multi-User Multiple Input and Multiple Output," a technology that uses both transmitting and receiving antennas for wireless communication.
The number of available antennas is expressed as 8 x 8 (eight each for transmission and reception), and the more available antennas, the more comfortable communication is.
In the past, 8 x 8 MU-MIMO was the maximum communication speed, but Wi-Fi 7 supports 16 x 16, so communication here is nearly twice as fast as in the past.
This is one of the major attractions of Wi-Fi 7, as it makes communication with multiple devices more comfortable.
2022.11.15
What is the approximate speed of a Wi-Fi line? Explains the required line speed for different applications and devices!
To increase the speed of your Wi-Fi connection, you will have to incur initial costs, such as installing an optical fiber line or purchasing an expensive router. If you want to play FPS online games, you need to install an optical fiber line. However, if you want to watch online videos or need an Internet connection for Zoom, you don't need to be concerned about an optical fiber connection...
Difference between Wi-Fi 7 and 6/6e (4) MRU support stabilizes the connection environment for multiple terminals
Wi-Fi 7 also supports MRU to enhance the efficiency of connecting multiple terminals at the same time.
Simply put, the MRU allows the parent device to specify the connection priority (QoS), number of channels, etc. for each child device from multiple devices.
Even when multiple terminals are connected, by assigning priority to each child, more resources can be allocated to the side of the communication where quality is more important.
*Because of its specialized nature, however, this is a feature for those who are particular about their connection.
Difference between Wi-Fi 7 and 6/6e (5): MLO function greatly improves communication quality for specific terminals
The "MLO (Multi Link Operation)" function is one of the most attractive features of Wi-Fi 7.
Simply put, the MLO function allows access to all 2.4GHz/5GHz/6GHz frequency bands simultaneously.
Up until Wi-Fi 6e, the number of frequency bands that could be accessed was limited to one: 5 GHz for 5 GHz, 2.4 GHz for 2.4 GHz, and so on.
With Wi-Fi 7, you can connect to all frequency bands at the same time, so even if there is congestion or interference in the same frequency band, you can still connect without problems.
There are many other uses for this feature, but it can have a tremendous number of benefits, including lower latency, faster transmission speeds, and improved stability.
How to set up Zoom to be lighter: 3 causes and remedies for when Zoom is heavy or crashes suddenly.
2022.06.16
How to set up Zoom to be lighter. 3 causes and countermeasures when Zoom is heavy and suddenly crashes.
Have you ever been in a Zoom meeting or lecture and suddenly the screen crashes or the audio lags, making it impossible to participate in the middle of the session? To lighten Zoom, settings such as bringing the application up to the latest version and restarting it are effective. If the Zoom problem persists, there may be a problem with your communication speed...
When will Wi-Fi 7 be introduced in Japan?
Now that we have explained the features and differences of Wi-Fi 7, when will Wi-Fi 7 actually be introduced in Japan?
Although no specific date has been set, it is expected that certified products (trial products) will go on sale during 2024, followed by solid devices in 2025.
Therefore, it will probably be 2025 before the main use of the system actually begins.
Even Wi-Fi 6e, which was introduced in 2022, is not yet widely used.
There are not many devices that support Wi-Fi 6e, and many people are hesitant to purchase Wi-Fi 6e because it is more expensive than Wi-Fi 6-compatible devices.
Even if Wi-Fi 7 is introduced, it will take at least one year for it to become widely available, so it will not be used in the average household until 2026 or later.
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When will Wi-Fi 6E be approved in Japan?
What is Wi-Fi 6E? Does my iPhone support Wi-Fi 6E?" For those who have such questions, this article introduces what Wi-Fi 6E is and which routers and smartphones are Wi-Fi 6E-compatible. At this time, Wi-Fi 6E is not approved in Japan, but it is expected to be approved soon...
Wi-Fi 6 and 6e compatible routers are recommended for now
If you are currently considering buying a new Wi-Fi router, you may be thinking, "If Wi-Fi 7 is coming, I want to wait for that before I buy!" You may be thinking, "If Wi-Fi 7 is coming, I want to wait for it before I buy!
However, Wi-Fi 7 is not expected to be widely available until 2025 or later, so if you are buying now, we recommend a Wi-Fi 6 or 6e-compatible router.
The standard replacement time for a router is generally around 5 years.
Considering this, it would be best to purchase a Wi-Fi 6/6e-compatible router now and use it for three to four years before switching to Wi-Fi 7.
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What is the difference between 5G "millimeter wave" and "Sub6"? Speed and compatible devices are also introduced.
5G is a next-generation communication standard that has been gaining popularity in recent years. Did you know that there are two frequency bands in 5G, "millimeter wave" and "Sub6"? In this article, we will explain in detail the difference between "millimeter wave" and "Sub6" of 5G. We will also introduce a comparison of communication speeds and compatible handsets. 5...
Let's introduce the communication revolution Wi-Fi 7 after 2025!
Wi-Fi 7" is a very high-performance wireless communication standard, so much so that it has been called a communication revolution.
However, since it is expected to actually start spreading to households after 2025, there is no need to rush to find compatible terminals and devices now.
Instead, we recommend waiting and using Wi-Fi 6e and WI-Fi 6, which were introduced in 2022.
Wi-Fi 7 itself is a very high-performance communication standard, so if you are interested in it, please wait for its arrival and use it.
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The latest price comparison chart for WiMAX+5G by provider.
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