As part of the Wi-Fi 7 Day event, Qualcomm spoke about the key advantages of the new data transmission technology, as well as the features of its implementation of this protocol.
Image source: Qualcomm
The most important advantages of Wi-Fi 7 over the previous version of Wi-Fi 6E are the expansion of the channel in the 6 GHz band from 160 to 320 MHz and the ability to simultaneously connect in several bands at once – Multi-Link Operation (MLO). Qualcomm’s High Band Simulcient (HBS) technology allows the allocated 320 MHz to be split into different bands, for example, using a 160 MHz channel in the 5 GHz band and a 160 MHz channel in the 6 GHz band. This helps reduce latency and eliminate interference associated with wide-channel connections.
Last year, the company introduced FastConnect 7800, the first commercial Wi-Fi 7 platform. It allows speeds of up to 5.8 Gbps with a latency of 2 ms, which, according to Qualcomm, allows the platform to compete with classic Ethernet. The power management design in the Software Suite allows you to activate a power saving mode right between sending packets, thereby reducing the consumption of the wireless module by more than 25%. The software solution also allows you to reduce the latency by 80%, and we are not talking about the average value, but in 99% of cases – the peak latency value is also reduced.
The effectiveness of these measures is increasingly noticeable with modern devices that require a wireless connection – for example, for a mixed reality headset, even a one-time jump in latency of up to 100 ms can be critical. The same is true for cases when it is not possible to connect a home computer or console via Ethernet, as well as when broadcasting games using Steam or NVIDIA GeForce Experience.
Qualcomm considers the most important issue to be optimization of local wireless communications using software – a person can negotiate via VoIP, but the connection will suddenly be interrupted due to downloading a large file in another part of the same network. To solve this problem, the company offers the Service Defined Wi-Fi methodology, in which communication service providers control not only the allocated channels and the data transfer rate over them, but also have access to a set of connected devices and services used, allowing them to optimize network performance for the end user. The client will be able to choose between the qualitative characteristics of the tariffs – for example, paying for a “gaming tariff” or a “tariff for working from home”. The solution includes telemetry and analytics to help optimize connectivity in real time, as well as open APIs for direct implementation of software solutions. At the same time, the provider receives more complete feedback and has all the means to improve the quality of service – proactive troubleshooting will help reduce the number of calls to technical support.
The developer also talked about the Qualcomm 10G Fiber fiber connection platform with built-in Wi-Fi 7 – it supports 2.5, 5 and 6 GHz bands with a channel width of 320 MHz, 4K QAM modulation and a maximum total throughput of up to 33 Gbps, as well as Qualcomm Service Defined Wi-Fi features. For households that lack access to fiber networks, Qualcomm has offered a 5G fixed access platform across all available bands.
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