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Table 2 MCS data rate table (40 MHz)
Number of spatial
MCS index
streams
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
2
9
2
10
2
11
2
12
2
13
2
14
2
15
2
802.1 1 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 802.1 1n mandatory rates.
To configure 802.1 1n rates:
To do...
1.
Enter system view.
2.
Enter RRM view.
3.
Specify the maximum MCS
index for 802.1 1n mandatory
rates.
Modulation
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
Use the command...
system-view
wlan rrm
dot11n mandatory maximum-mcs
index
25
Data rate (Mbps)
800ns GI
400ns GI
13.5
15.0
27.0
30.0
40.5
45.0
54.0
60.0
81.0
90.0
108.0
120.0
121.5
135.0
135.0
150.0
27.0
30.0
54.0
60.0
81.0
90.0
108.0
120.0
162.0
180.0
216.0
240.0
243.0
270.0
270.0
300.0
Remarks
—
—
Optional.
No maximum MCS index is
specified for 802.11n
mandatory rates by default.
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