25
Table 2
MCS data rate table (40 MHz)
MCS index
Number of spatial
streams
Modulation
Data rate (Mbps)
800ns GI
400ns GI
0
1
BPSK
13.5
15.0
1
1
QPSK
27.0
30.0
2
1
QPSK
40.5
45.0
3
1
16-QAM
54.0
60.0
4
1
16-QAM
81.0
90.0
5
1
64-QAM
108.0
120.0
6
1
64-QAM
121.5
135.0
7
1
64-QAM
135.0
150.0
8
2
BPSK
27.0
30.0
9
2
QPSK
54.0
60.0
10
2
QPSK
81.0
90.0
11
2
16-QAM
108.0
120.0
12
2
16-QAM
162.0
180.0
13
2
64-QAM
216.0
240.0
14
2
64-QAM
243.0
270.0
15
2
64-QAM
270.0
300.0
802.11 rates fall into the following types:
Mandatory rates: Mandatory rates must be supported by the AP. Clients can associate with the AP only
when they support the mandatory rates.
Supported rates: Higher rates supported by the AP besides the mandatory rates. Supported rates allow
some clients that support both mandatory and supported rates to choose higher rates when
communicating with the AP.
Multicast rates: Multicast rates supported by the AP besides the mandatory rates. Multicast rates allow
clients to send multicast traffic at the multicast rates.
When you specify the maximum MCS index, you actually specify a range. For example, if you specify the
maximum MCS index as 5 for mandatory rates, rates corresponding to MCS indexes 0 through 5 are
configured as 802.11n mandatory rates.
To configure 802.11n rates:
To do…
Use the command…
Remarks
1.
Enter system view.
system-view
—
2.
Enter RRM view.
wlan rrm
—
3.
Specify the maximum MCS
index for 802.11n mandatory
rates.
dot11n mandatory maximum-mcs
index
Optional.
No maximum MCS index is
specified for 802.11n
mandatory rates by default.
