Wi-Fi 6 aka Wi-Fi 6 uses the 2.4 gigahertz and 5 gigahertz bands. The 2.4 GHz band offers a maximum data transfer of 300 Mbit/s with a channel width of 40 MHz per antenna or stream. A router with two antennas can therefore also transfer up to 600 Mbit/s here. However, the throughput naturally depends on the end devices. Even with the new standard, end devices will never reach the maximum throughput, as there will always be some adversities here too.
Wi-Fi 6 aka To make the most of the benefits, end devices must suppor with the same performance/level of support as the router. If WLAN routers/ access points support multiple streams, these values are multiplied accordingly. In laboratories, data throughputs of up to 10 Gbit/s were achieved with individual devices. Overall, 802.11ax supports up to 8 streams.
The main focus ofis to improve performance in networks with many clients and parallel WLAN routers /access points. In this case, the developers were concerned with the total data throughput of all devices in a zone.
At the same time, Wi-Fi 6 with TWT (Target Wake Time) is designed to ensure that the battery of connected devices is protected in standby mode without slowing down the performance of the Wi-Fi when it is reactivated.
WLAN devices no longer interfere with each other
With older WLAN standards, multiple WLANs interfere with each other when the same channels are used. This is inevitably the case with many devices within a Finland Phone Number List small area; even in private areas, for example in apartment buildings or campus networks. 802.11ax ( also brings improvements here, where identical channels no longer interfere with each other and multiple WLAN routers/access points can use the same channel at the same time.
The devices use spatial reuse for this. With spatial reuse, a channel can be reuse if the signal in the neighboring cell on the channel is still just about working, but is very good in the own cell. In this case devices continue to transmit. Clients with a fast and good connection to the WLAN router/access point in particular benefit from this. At the same time, channels are use better and free channels are only use when there is no other option.
Simply put, with Spatial Reuse, multiple WLAN Cell Phone Number Database routers/access points can use the same channel in parallel, as the devices handle the channels and the data sent more intelligently. For this to work, all devices in an area should of course support Wi-Fi 6, especially the WLAN routers/access points. The technology is intend to be particularly helpful when there are a large number of WLANs and radio cells in an area.
Bidirectional multi-user MIMO and OFDM
With 802.11ax, WLAN routers/access points can supply up to three devices with data at the same time and receive data from three devices at the same time (multi-user MIMO). The 802.11ax predecessor 802.11ac also supports multi-user MIMO, but only from the WLAN router/access point to the end devices (downlink) and not in the other direction (uplink).
In parallel to multi-user MIMO in both directions, the OFDM (Orthogonal Frequency-Division Multiplexing) technology is useful in. With this Bulk Database technology, a router can send and receive data to multiple devices at the same time (multi-user MIMO) and at the same time take different speeds and transmission conditions into account (OFDM). Each client thus receives an individual data rate.
To make this work, a router can divide the allocat channels into hundreds of sub-channels. These are call resource units (RU). The clients receive the respective RU directly from the WLAN router/access point that supports Wi-Fi 6.
1024QAM modulation method improves efficiency
Wi-Fi 6 devices support the modulation method 1024QAM. QAM is the abbreviation for quadrature amplitude modulation. This technology is also use in LTE , for example . The value indicates the density of information that can be sent per unit of time. The higher the value, the more data can be sent per unit of time. LTE currently mainly uses 256QAM, often even just 16QAM to 64QAM.
Wi-Fi 6E as an extension for Wi-Fi 6
The introduction of the 6 GHz band for 802.11ax is planne for later. The standard is often referr to as Wi-Fi 6E Enhance). When using 6 GHz, a spectrum of 1,200 MHz can be use. This is particularly useful when using a large number of devices, as they no longer interfere with each other.
