WiFi chip maker Quantenna was at Broadband World Forum in Berlin with a new chipset for 802.11ax mesh repeater networks dubbed the QSR10R-AX.
It has three 4×4 802.11ax radios and integrated CPU cores for optimal mesh repeater functionality. The idea is to have one channel, up to 160 MHz of bandwidth in 5.0 GHz, for downlink traffic and another channel for traffic coming the other way, making it a full duplex. The 2.4 GHz channel is the usual both ways chip, but this time it comes with 4 x 4 MU MIMO. This two way coverage, when combined with dynamic power features, makes for a more reliable backhaul, and is supposed to eliminate the need for a wired backhaul – such as MoCA or HomePlug.
Arch-rival Qualcomm first introduced this idea of a triband WiFi chip in its last 802.11ac chip, which forms the basis of many retail products in the US. It must have been bouncing around as an idea in 802.11ax committees when Qualcomm decided to go that route. This idea is to increase speed, but also get better quality of service and reach.
AX will also dynamically organize its OFDM sub-channels, and allow Multi User in both directions, from the AP, which was available in 802.11ac, and from multiple devices to the AP, which has not been used before.
AX also has a featured called coloring, which allows it to identify foreign packets from interfering neighbors, so that it can then adapt power and sensitivity so that it will not interfere with neighboring APs.
When combining QSR10R-AX 4×4 capability with a 4×4 or 8×8 residential gateway you maximize coverage for large homes without compromising network performance and reliability says Quantenna.