Keysight M9421A - Page 840

3 WLAN Mode
3.6 Modulation Analysis Measurement
Index: n Results Returned
Radio
Standard
Returned Values
11ax 80+80
M
on the number of users)
The definitions of RU2, RU4, RU6 and RU8 refer to 802.11ax specification HE-SIG-B part
For 802.11be
It will return EHT-SIG contents for channel 2 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 -999.0
11be 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)
34 Unused Tone Error results corresponding to metric window of Unused Tone Error view
NOTE
The results will be available only when radio standard is 802.11ax or 11be and the signal
format is Trigger based
The total number of results = 8 + 12 * Number of RU-26
Each RU-26 contains 12 items, The 12 items are:
1.
RU-26 index
2.
m
3.
Subcarrier start index
WLAN Mode User's &Programmer's Reference 840