802.11ax 6E Physical Rates
What is the range of physical data rates supported by IEEE 802.11ax 6E?
802.11ax 6E supports physical data rates from approximately 0.3 Mbps up to 9.6 Gbps depending on channel width, MCS, and spatial streams.
Which frequency band does 802.11ax 6E operate in?
802.11ax 6E operates in the 6 GHz frequency band, ranging from 5925 MHz to 7125 MHz.
What modulation schemes are used in 802.11ax 6E?
Modulation schemes include BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM, and optional 1024-QAM for higher data rates.
How does channel bandwidth affect physical rates in 802.11ax 6E?
Wider channels (20, 40, 80, 160, and 320 MHz) allow transmission of more data simultaneously, increasing maximum data rates.
What is MCS in 802.11ax 6E physical rates?
Modulation and Coding Scheme (MCS) indicates the modulation type and coding rate, impacting throughput and data rate.
How many spatial streams does 802.11ax 6E support?
Up to 8 spatial streams are supported, enabling parallel data streams to increase throughput.
What is OFDMA and how does it impact 802.11ax 6E rates?
Orthogonal Frequency Division Multiple Access (OFDMA) divides channels into subcarriers allowing simultaneous transmission to multiple clients, improving efficiency.
Does 802.11ax 6E support MU-MIMO?
Yes, Multi-User MIMO enables the AP to communicate with multiple clients simultaneously, increasing network capacity and throughput.
What is the maximum channel width supported in 802.11ax 6E?
The maximum supported channel width is 320 MHz, enabling very high data rates.
How does 1024-QAM improve physical rates in 802.11ax 6E?
1024-QAM increases bits per symbol, allowing higher throughput in good signal conditions.
What role does spatial reuse play in 802.11ax 6E rates?
Spatial reuse techniques allow multiple devices to use the same frequencies with reduced interference, increasing network efficiency.
How does 6 GHz band availability affect physical rates?
The new 6 GHz band provides additional spectrum, less interference, and more contiguous channels, enabling higher throughput.
What is the relationship between SNR and physical rates in 802.11ax 6E?
Higher Signal-to-Noise Ratio (SNR) allows use of higher MCS levels, increasing data rates.
Does 802.11ax 6E support backward compatibility in physical rates?
Yes, it supports legacy rates for compatibility with older devices while offering higher rates to capable devices.
What is the impact of channel bonding on 802.11ax 6E physical rates?
Channel bonding combines adjacent channels to increase bandwidth and throughput.
How does transmit power affect physical rates in 802.11ax 6E?
Adequate transmit power ensures better signal quality, enabling higher data rates.
Are physical rates fixed or dynamic in 802.11ax 6E?
They are dynamic; devices adjust MCS and rates based on channel conditions and interference.
How does frame aggregation influence effective throughput in 802.11ax 6E?
Frame aggregation combines multiple frames into one transmission, reducing overhead and increasing throughput.
What is the theoretical maximum PHY rate for 802.11ax 6E using 8 spatial streams and 320 MHz channels?
Approximately 9.6 Gbps is the maximum theoretical physical data rate under ideal conditions.
Topics in this section,
Modulation |
BW |
Tsc |
FSP=BW/Tsc |
Tdata=1/FSP |
GI (ns) |
Symbol (ns) |
1/Symbol |
Bits/Symbol |
Code rate |
Usable sc |
Rate (Mbps) |
|---|---|---|---|---|---|---|---|---|---|---|---|
BPSK |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
1 |
1/2 |
234 |
7.8 |
BPSK |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
1 |
3/4 |
234 |
11.7 |
QPSK |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
2 |
1/2 |
234 |
15.6 |
QPSK |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
2 |
3/4 |
234 |
23.4 |
16-QAM |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
4 |
1/2 |
234 |
31.2 |
16-QAM |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
4 |
3/4 |
234 |
46.8 |
64-QAM |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
6 |
2/3 |
234 |
41.6 |
64-QAM |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
6 |
3/4 |
234 |
46.8 |
256-QAM |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
8 |
3/4 |
234 |
62.4 |
256-QAM |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
8 |
5/6 |
234 |
78.0 |
1024-QAM |
20 |
256 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
10 |
3/4 |
234 |
78.0 |
1024-QAM |
20 |
256 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
10 |
5/6 |
234 |
97.5 |
BPSK |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
1 |
1/2 |
468 |
15.6 |
BPSK |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
1 |
3/4 |
468 |
23.4 |
QPSK |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
2 |
1/2 |
468 |
31.2 |
QPSK |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
2 |
3/4 |
468 |
46.8 |
16-QAM |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
4 |
1/2 |
468 |
62.4 |
16-QAM |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
4 |
3/4 |
468 |
93.6 |
64-QAM |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
6 |
2/3 |
468 |
83.2 |
64-QAM |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
6 |
3/4 |
468 |
93.6 |
256-QAM |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
8 |
3/4 |
468 |
124.8 |
256-QAM |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
8 |
5/6 |
468 |
156.0 |
1024-QAM |
40 |
512 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
10 |
3/4 |
468 |
156.0 |
1024-QAM |
40 |
512 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
10 |
5/6 |
468 |
195.0 |
BPSK |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
1 |
1/2 |
980 |
32.7 |
BPSK |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
1 |
3/4 |
980 |
49.1 |
QPSK |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
2 |
1/2 |
980 |
65.4 |
QPSK |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
2 |
3/4 |
980 |
98.1 |
16-QAM |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
4 |
1/2 |
980 |
130.8 |
16-QAM |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
4 |
3/4 |
980 |
196.2 |
64-QAM |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
6 |
2/3 |
980 |
174.5 |
64-QAM |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
6 |
3/4 |
980 |
196.2 |
256-QAM |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
8 |
3/4 |
980 |
261.6 |
256-QAM |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
8 |
5/6 |
980 |
326.9 |
1024-QAM |
80 |
1024 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
10 |
3/4 |
980 |
326.9 |
1024-QAM |
80 |
1024 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
10 |
5/6 |
980 |
408.6 |
BPSK |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
1 |
1/2 |
1960 |
65.4 |
BPSK |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
1 |
3/4 |
1960 |
98.1 |
QPSK |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
2 |
1/2 |
1960 |
130.8 |
QPSK |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
2 |
3/4 |
1960 |
196.2 |
16-QAM |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
4 |
1/2 |
1960 |
261.6 |
16-QAM |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
4 |
3/4 |
1960 |
392.4 |
64-QAM |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
6 |
2/3 |
1960 |
349.0 |
64-QAM |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
6 |
3/4 |
1960 |
392.4 |
256-QAM |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
8 |
3/4 |
1960 |
523.2 |
256-QAM |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
8 |
5/6 |
1960 |
653.8 |
1024-QAM |
160 |
2048 |
78.125 |
12.8 |
800 |
13.6 |
0.0735 |
10 |
3/4 |
1960 |
653.8 |
1024-QAM |
160 |
2048 |
78.125 |
12.8 |
400 |
13.2 |
0.0758 |
10 |
5/6 |
1960 |
817.2 |
Reference links