User Manual

25
Reverse Direction
Grant (RDG)
This is the 11n performance parameter. Enable it if needed.
Extension Channel
The “20/40” bandwidth mode uses 5 channels. For
example, selecting channel 7 and you can select 3 or 11 for
extension channel. Choose the unused channel for the
extension channel.
Aggregation MSDU
(A-MSDU)
The multiple HT packets can be transmitted with single
ACK reply packet. Enable it to apply this function and
reduce the network congestion.
Auto Block ACK
It is another aggregation technique which prevents sending
ACK in the communication to increase the throughput. If
this option is enabled, the device will activate this function
when transmitting massive data.
Decline BA Request
Enable this option to decline the Block ACK request
addressed by the other devices.
The table below shows the relationship among Phy data rate, Bandwidth and Guard
Interval.
Bandwidth = 20MHz Bandwidth = 40MHz
Data Rate
Mbps
MCS
Short Guard
Interval
Long Guard
Interval
Short Guard
Interval
Long Guard
Interval
0 (1S) 7.2 6.5 15 13.5
1 14.4 13 30 27
2 21.7 19.5 45 40.5
3 28.9 26 60 54
4 43.3 39 90 81
5 57.8 52 120 108
6 65 58.5 135 121.5
7 72.2 65 150 135
8 (2S) 14.4 13 30 27
9 28.9 26 60 54
10 43.3 39 90 81
11 57.8 52 120 108
12 86.7 78 180 162
13 115.6 104 240 216
14 130 117 270 243
15 144.4 130 300 270
32 Not Supported Not Supported 6.7 6
MCS: Modulation Coding Scheme
MCS=0~7 (1S, One Tx Stream)