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What we know about WiFi 7, still in development



What we know about WiFi 7, still in development


The advancement of telecommunications does not stop. When 5G has just entered through the front door, songs of 6G are already sounding. Likewise, given the incipient expansion of WiFi 6, it is already anticipated what will be the WiFi 7.

Its technical nomenclature will be 802.11be, although the commercial name will most likely be WiFi 7. We say most likely because official approval is still pending. A fact that gives an idea of ​​the state of development of this standard. However, despite being in an embryonic phase, some details can already be anticipated.

It’s worth taking a look at these desired attributes for the new WiFi generation. Among other things because it has already been said that the leap it will produce will be the most relevant of the decade. It’s no surprise that WiFi 7 is scheduled to be much faster than current standard. It will also not shock you to know that your latency will be significantly lower. Commercial devices that exist today, such as the Movistar Router, are expected to evolve in this direction. Also as an evolution of the already implemented Amplify Smart WiFi 6 from Movistar. Another solution that will gain even more speed will be Movistar’s WiFi Mesh network, which offers users the best connectivity even in areas with poor coverage.

Latency and speed are nowadays one of the most sought after features in a wireless connection. The applications we use today, such as live video or video games, demand it. For now, yes, there is nothing clear. We only have estimates of what the standard may become. The 802.11 working group, in charge of creating WiFi standards at the IEEE (Institute of Electrical and Electronic Engineers), shows for now brushstrokes of future technology, subject to variations.

Characteristics Wi Fi 7

The specification that gets the most attention every time a new telecommunications standard appears is speed. In this case the jump will not disappoint. Wi Fi 7 is expected offer even more than 40 Gbps, according to the IEEE working group. There are also other calculations. From Intel they point out that their peak speed will be 30 Gbps. It is the same figure offered by the WiFi Alliance, which speaks of a minimum of 30 Gbps.

In any case, it will be a much higher speed than the maximum 9.6 Gbps that WiFi 6 displays. To compare the jump that will be printed, it is enough to say that WiFi 5 reaches 3.5 Gbps at most. In the case of latency there will also be a considerable reduction. But the numbers are not clear. The working group has set itself the objectives of providing real time communications. For this, the latency that has been set as a goal is 5 milliseconds. Likewise, work will be done to reduce jitter, which is the variation of delay times.

It must be remembered that WiFi 7 technology will be compatible and able to co exist with previous generation devices. Regardless of whether the connection occurs in the 2.4 GHz, 5 GHz or 6 GHz bands.

Use of frequency bands

WiFi 7 will work on the 2.4 GH, 5 GHz and 6 GHz frequencies, as the latest commercial generation of this standard already does. And one of the formulas to reduce latency has to do with the use of bands. The traffic can be transmitted on several bands at the same time. This will be made possible by the native introduction of multi link operation (MLO) technology.

To understand MLO well, it is necessary to know that some chips currently allow the use of several channels simultaneously. But in this case the channels work independently, with which efficiency is lost. The new technology will synchronize the use of these channels for better use of network resources. In the same way, interference will be avoided in high density areas.

Another novelty that WiFi 7 will bring in this area will be channels with twice the width. If the WiFi 6E standard supports 160 MHz channels, in the next generation 320 MHz will be reached. They can be distributed as two 160 + 160 MHz channels, in the same way that the 80 + 80 MHz combination now exists.

When will it arrive

The expected date of arrival by the IEEE is 2024. This worldwide association, which deals with the definition of the standard, ensures that commercial developments will not take long to occur from there.

However, there are already companies that have gone ahead. Demonstrations of the technology at an experimental level are already expected for early 2022. Although the exact technical requirements of WiFi 7 are not yet known, the chip manufacturer MediaTek has announced that it will offer a preview of this new generation of wireless connection. The Taiwanese firm indicates that it has been able to increase the current speed by 2.4 times.

Wi Fi 7 apps

The WiFi Alliance cites several use cases where the new standard will be important. The reduction in latency and jitter will be appropriate for the operation of virtual and augmented reality. But also for video games or, within the business world, critical applications at an industrial level.

The increased speed of WiFi 7 will serve as a solid foundation for the video streaming in 4K and even 8K. Factories and warehouses can also benefit from this standard. Without forgetting one of the trends that has exploded since the pandemic, such as remote work. A WiFi connection of these characteristics will be a technical guarantee to carry out any type of work.