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Radiotap

Introduction | defined fields | suggested fields | rejected fields | unofficially used fields

S1G

TLV Type Number
32
Structure
u16 known, u16 data1, u16 data2
Required Alignment
2
Unit(s)
none

The presence of this field indicates the frame was capture using an S1G phy.

This field contains data to allow correct handling by programs like Wireshark etc.

known

0x0001 S1G PPDU Format known
0x0002 Response indication known
0x0004 Guard interval known
0x0008 NSS known
0x0010 Bandwidth known
0x0020 MCS known
0x0040 Color known
0x0080 uplink indication known
0xFF00 Reserved

data1

0x0003 S1G PPDU Format: 0=S1G_1M, 1=S1G_SHORT, 2=S1G_LONG
0x000C Response indication: 0=NO_RESPONSE, 1=NDP_RESPONSE, 2=NORMAL_RESPONSE, 3=LONG_RESPONSE
0x0010 Reserved
0x0020 Guard interval: 0=Long GI, 1=Short GI
0x00C0 Number spatial streams: 0=1 Spatial stream, 1=2, .. 3=4 Spatial streams
0x0F00 Bandwidth: 0=1MHz, 1=2MHz, 2=4MHz, 3=8MHz, 4=16MHz, 5-15 reserved
0xF000 MCS (MCS rate index, 0-10, 11-15 reserved)

data2

0x0007 Color: 0-7
0x0008 Uplink indication
0x00F0 Reserved
0xFF00 RSSI