Another new router entry on the FCC: GT-AC9600

[solo]

Mmmm new routerrr

 

[maxbraketorque]

How is ASUS getting to 9600 mbps total bandwidth? Does this thing have four 5 GHz bands?

 

[RMerlin]

How is ASUS getting to 9600 mbps total bandwidth? Does this thing have four 5 GHz bands?

Quantenna QSR10G. 8x8 streams.

 

[maxbraketorque]

Quantenna QSR10G. 8x8 streams.

Thanks.

 

[nyxagamemnon]

Quantenna I wouldn't touch this with a 10 foot pole. The number of issues the Quantenna devices have working with broadcom and other brands..

 

[thiggins]

AC9600 comes from using 160 MHz bandwidth and 1024-QAM for the 8x8 5 GHz radio (8.6 Gbps) and 80 MHz bandwidth and 1024-QAM for the 4x4 2.4 GHz radio (1.0 Gbps).

The QSR10GU chipset datasheet doesn't spell out the use of both 160 MHz b/W and 1024-QAM to get the link rate. But walking through the calculation proves it out.

 

[Internet Man]

How is ASUS getting to 9600 mbps total bandwidth? Does this thing have four 5 GHz bands?

AC9600 comes from using 160 MHz bandwidth and 1024-QAM for the 8x8 5 GHz radio (8.6 Gbps) and 80 MHz bandwidth and 1024-QAM for the 4x4 2.4 GHz radio (1.0 Gbps).

The QSR10GU chipset datasheet doesn't spell out the use of both 160 MHz b/W and 1024-QAM to get the link rate. But walking through the calculation proves it out.

To elaborate for my own benefit and since this stuff isn't always spelled out clearly in one place...

Starting with regular 802.11ac (80MHz bandwidth and 256-QAM) which is typically considered to have 433Mbps per spatial stream (the third number in #x#:# or else the minimum of the first two numbers). Enabling 160MHz bandwidth doubles the speed to 867Mbps then considering the fact that 1024-QAM typically boosts rates by 25% over 256-QAM the speed per spatial stream is around 1084Mbps. So the eight streams together enable the ~8.6Gbps

Similarly for 2.4GHz 802.11n, a single 40MHz, 64-QAM spatial stream (SS) is theoretically capable of 150Mbps. 80MHz bandwidth is not allowed for 2.4GHz so we're stuck with 40MHz at the most. In reality, neighbor-friendly mode will likely result in most users stuck with 20MHz single channels but hopefully no one is still using 2.4GHz for anything but smart bulbs and stuff. To reach the 1000Mbps figure that they claim for 2.4GHz 802.11n, we start with 150Mbps per SS then assume that enabling non-standard 256-QAM would boost the speed by 33% to 200Mbps, then a further upgrade to 1024-QAM would boost the speed by another 25% bringing us to 250Mbps per SS. Four spatial streams at 250Mbps each gives the 1000Mbps number.