32
with the legacy 802.11a/g, the rest of
the packet has a new format
Green Field: In this mode, high
throughput packets are transmitted
without a legacy compatible part
20 Channel Width = 20 MHz
20/40 Channel Width = 20/40 MHz
Extension
Channel(5G
Hz Only)
Choose the extension channel
frequency
With IEEE 802.11ac standard, very-
high-throughput packets can be
configured to operate on the 5 GHz
frequency band
20/40 Channel Width = 20/40 MHz
80 Channel Width = 80 MHz