How much faster will Wi-Fi 7 be than Wi-Fi 6?

     It is undeniable that Wi-Fi can be said to be an indispensable part of people today. No matter where we go, we can't live without Wi-Fi. In early October last year, the Wi-Fi Alliance announced a change in the naming method of Wi-Fi. The complicated naming method no longer exists, and Wi-Fi 6 will be the name of the next generation of Wi-Fi standards. Just when Wi-Fi 6 was just beginning to be popularized, scientists have already started to promote Wi-Fi 7.

　　It is reported that the speed of Wi-Fi 6 can reach 9.6 Gbps, while the speed of Wi-Fi 5 is 3.5 Gbps, which shows that the improvement is still very significant. However, the speed of Wi-Fi 7 can reach up to 30Gbits per second, which means that it can provide better streaming video, cover longer distances, and reduce congestion. For this new standard, the Wi-Fi Alliance has not yet widely promoted it.

　　At present, the three latest Wi-Fi standards are IEEE 802.11n, 802.11ac, and 802.11ax, which are certified as Wi-Fi 4, Wi-Fi 5, and Wi-Fi 6, respectively. Therefore, 802.11be is a strong candidate to receive the Wi-Fi 7 label.

　　It is reported that Wi-Fi 6 can use multiple RF bands from 1GHz to 7GHz, including the 2.4GHz and 5GHz bands currently used by Wi-Fi, and the transmission speed is 3-4 times faster than the Wi-Fi 5 standard.

　　Finally, Wi-Fi 6 also supports OFDM, up to 1024QAM, and multi-user multiple-input multiple-output technology. After using OFDA technology, the wireless bandwidth has increased by 10 times in theory, but in actual tests, it can only increase by about 4 times. With the acceleration of 5G network commercialization, Wi-Fi 6 will become more and more popular and is expected to replace the existing Wi-Fi standard around 2023.