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4.
Configure rates for 802.1 1g.
Configuring 802.11n rates
Configuration of mandatory and supported 802.1 1n rates is achieved by specifying the maximum MCS
index. The MCS data rate table shows relations between data rates, MCS indexes, and parameters that
affect data rates. A sample MCS data rate table (20 MHz) is shown in
table (40 MHz) is shown in
As shown in the two tables, MCS 0 through MCS 7 use one spatial stream, and the data rate corresponding
to MCS 7 is the highest; MCS 8 through MCS 15 use two spatial streams, and the data rate corresponding
to MCS 15 is the highest.
Table 1 MCS data rate table (20 MHz)
MCS index
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Use the command...
dot11g { disabled-rate |
mandatory-rate | supported-rate }
rate-value
Table
2. For the whole table, see IEEE P802.1 1n D2.00.
Number of spatial
Modulation
streams
1
BPSK
1
QPSK
1
QPSK
1
16-QAM
1
16-QAM
1
64-QAM
1
64-QAM
1
64-QAM
2
BPSK
2
QPSK
2
QPSK
2
16-QAM
2
16-QAM
2
64-QAM
2
64-QAM
2
64-QAM
Table
Data rate (Mbps)
800ns GI
6.5
13.0
19.5
26.0
39.0
52.0
58.5
65.0
13.0
26.0
39.0
52.0
78.0
104.0
117.0
130.0
24
Remarks
Optional.
By default, mandatory rates are
1, 2, 5.5, and 11; supported
rates are 6, 9, 12, 18, 24, 36,
48, and 54; no rates are
disabled.
1, and a sample MCS data rate
400ns GI
7.2
14.4
21.7
28.9
43.3
57.8
65.0
72.2
14.4
28.9
43.3
57.8
86.7
115.6
130.0
144.4
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