Motorola WiNG 5.7.1, System Reference Manual

Page: 518 / 1090

6 - 48 WiNG 5.7.1 Access Point System Reference Guide
Figure 6-24 Advanced WLAN - Rate Settings 5 GHz-WLAN screen
9. For 5.0 GHz WLAN radio transmission rate settings, define the minimum Basic and Supported rates in the 802.11a Rates ,
and 802.11n Rates sections. These rates are applicable to client traffic associated with this WLAN only.
If supporting 802.11n, select a Supported MCS index. Set a MCS (modulation and coding scheme) in respect to the radio’s
channel width and guard interval. A MCS defines (based on RF channel conditions) an optimal combination of 8 data rates,
bonded channels, multiple spatial streams, different guard intervals and modulation types. Clients can associate as long as
they support basic MCS (as well as non-11n basic rates).
802.11n MCS rates are defined as follows both with and without short guard intervals (SGI):
Table 6.1 MCS-1Stream
MCS Index
Number of
Streams
20 MHz
No SGI
20 MHz
With SGI
40 MHz
No SGI
40MHz
With SGI
0 1 6.5 7.2 13.5 15
1 1 13 14.4 27 30
2 1 19.5 21.7 40.5 45
3 1 26 28.9 54 60
4 1 39 43.4 81 90
5 1 52 57.8 108 120
6 1 58.5 65 121.5 135
7 1 65 72.2 135 150
Table 6.2 MCS-2Stream
MCS Index
Number of
Streams
20 MHz
No SGI
20 MHz
With SGI
40 MHz
No SGI
40MHz
With SGI
0 2 13 14.4 27 30