Keysight M9421A - Page 839

3 WLAN Mode
3.6 Modulation Analysis Measurement
Index: n Results Returned
It will return EHT-SIG contents for channel 1 which is defined by 11be specification
The returned values are float, each float number represents one bit ( i.e., 1.0 means bit 1 and 0.0 means bit
0)
EHT-SIG contents contains common field and user specific field
For non-OFDMA transmission, common field include U-SIG overflow bits and Number of non-OFDMA users
For EHT Sounding NDP, common field include U-SIG overflow bits, CRC and Tail
For OFDMA transmission, common field include U-SIG overflow bits, RU Allocation subfields, CRC and Tail
The detailed return value for OFDMA transmission are:
Radio
Standard
Returned Values
11be 20 M /
40M
U-SIG overflow(17 bits), RU Allocation-1(9 bits), CRC(4 bits), Tail(6 bits), EHT-SIG
user field ( bits are variable depending on the number of users)
11be 80M U-SIG overflow(17 bits), RU Allocation-1(9 bits), RU Allocation-1(9 bits), CRC(4 bits),
Tail(6 bits), EHT-SIG user field ( bits are variable depending on the number of users)
11be 160M U-SIG overflow(17 bits), RU Allocation-1 (9 bits), RU Allocation-1 (9 bits), CRC(4 bits),
Tail(6 bits), RU Allocation-2 (9 bits), RU Allocation-2 (9 bits), CRC(4 bits), Tail(6 bits),
EHT-SIG user field ( bits are variable depending on the number of users)
11be 320M U-SIG overflow(17 bits), RU Allocation-1 (9 bits), RU Allocation-1 (9 bits), CRC(4 bits),
Tail(6 bits), RU Allocation-2 (9 bits), RU Allocation-2 (9 bits), RU Allocation-2 (9 bits),
RU Allocation-2 (9 bits), RU Allocation-2 (9 bits), RU Allocation-2 (9 bits), CRC(4 bits),
Tail(6 bits), EHT-SIG user field ( bits are variable depending on the number of users)
33 HE-SIG-B / EHT-SIG channel 2 contents
NOTE
The results will not be available unless radio standard is 802.11ax/be
For 11ax
It will return HE-SIG-B contents for channel 2 which is defined 11ax specification
The returned values are float, each float number represents one bit ( i.e., 1.0 means bit 1 and 0.0 means bit
0)
The format of the returned values are:
Radio
Standard
Returned Values
11ax 20 M -999.0
11ax 40M RU2-242(8 bits), CRC(4 bits), Tail(6 bits), HE-SIG-B user field ( bits are variable
depending on the number of users)
11ax 80 M RU2-242(8 bits), RU4-242(8 bits), Center 26-tone RU (1 bit), CRC(4 bits), Tail(6 bits),
HE-SIG-B user field ( bits are variable depending on the number of users)
11ax 160 M
or
RU2-242(8 bits), RU4-242(8 bits), RU6-242(8 bits), RU8-242(8 bits),Center 26-tone
RU (1 bit), CRC(4 bits), Tail(6 bits), HE-SIG-B user field ( bits are variable depending
839 WLAN Mode User's &Programmer's Reference