This topic applies to the following Generation Mode:
HE Trigger Based PPDU
Enable/disable User shedule mode. If enabled, the L-SIG Length, LDPC Extra Symbol, PE Disambiguity, and Pre-FEC Padding Factor parameters become editable.
Sets the value of the L-SIG length field of the HE trigger-based PPDU that is the response to the trigger frame.
Indicates the presence of the extra OFDM symbol for LDPC.
Gets or sets the PE disambiguation bit.
Get or Set Pre-FEC Padding Factor.
Select the Symbol interval (with guard interval) for the HE-LTF field. The current combinations are 1x HE-LTF + 1.6 us, 2x HE-LTF + 1.6 us and 4x HE-LTF + 3.2 us.
Choice: On | Off
Default: Off
Coupling: Present for one RU spanning the entire PPDU bandwidth not using 1x HE-LTF and not present otherwise.
Indicate whether to use HE masked HE-LTF sequence mode.
The masked HE-LTF sequence mode does not have any pilot subcarriers in the HE-LTF field and uses a masked HE-LTF sequence generated by multiplying an orthogonal code (distinct to each spatial stream) over groups of subcarriers.
The masked HE-LTF sequence mode is supported only when the following conditions are met:
HE TB PPDU with one RU spanning the entire PPDU bandwidth
The HE-LTF type of the HE TB PPDU is 2x HE-LTF or 4x HE-LTF
Specify the number of HE-LTFs. If Maximum Number of Total Space Time Streams is 1, then its value is 1, otherwise its value is the ceiling of (NumOfTotalSpaceTimeStreams / 2.0) * 2.
Enable/disable space time block coding. The STBC encoder spreads constellation points from Nss spatial stream into Nsts space-time streams using a space-time block code. STBC is allowed only with single spatial stream and two space-time streams.
This is information indicating the total number of space time streams , which is equal to the sum of the Nsts for each user.
Set the number of transmit chains. When the number of instruments is more than 1 and the Channel State is Off, it automatically equals to the number of instruments and cannot be changed, otherwise, it is editable.
Set or Get the Maximum Packet Extension Duration for Current PPDU. An HE PPDU may have a Packet Extension (PE) field appended at the end of the PPDU, with possible durations being 0 µs, 8 µs, or 16 µs. The PE field, when present, shall be transmitted with the same average power as the Data field, and its content is arbitrary.
Indicate a PPDU with enhanced immunity to Doppler.
Indication of midamble periodicity. The midamble is present only when the number of OFDM symbols in the HE Data field is larger than the signaled midamble periodicity plus 1 and the Doppler indication is on.
Indicates whether the frame is Uplink or Downlink. The field is set to DL for TDLS and set to UL for HE TB PPDU.
Get or Set the Base station identifier.The BSS Color field is an identifier of the BSS.
Set or Get the remaining time duration in the current TXOP. Set to 8449 μs to indicate no duration information. Set to value other than 8449 μs to indicate the duration information for NAV setting and protection of the TXOP. When the value ranges from 0 to 504 μs, the granularity is 8 μs. When the value ranges from 512 to 8448 μs, the granularity is 128 μs.
Indicates whether or not spatial reuse is allowed in a sub-band of the PPDU during the transmission of this PPDU, and if allowed, indicates a value that is used to determine a limit on the transmit power of a spatial reuse transmission.
If the Bandwidth field indicates 20 MHz, 40 MHz, or 80 MHz: Spatial Reuse field for the first 20 MHz sub-band. If the Bandwidth field indicates 160/80+80 MHz: Spatial Reuse field for first 40 MHz subband of the160 MHz operating band. Set to 0 (SR disallowed Entry) to disallow SRP-based spatial reuse. Set to value 1 to 14 corresponding to SRP value for SRP-based SR operation.
Indicates whether or not spatial reuse is allowed in a sub-band of the PPDU during the transmission of this PPDU, and if allowed, indicates a value that is used to determine a limit on the transmit power of a spatial reuse transmission.
If the Bandwidth field indicates 20 MHz, 40 MHz, or 80 MHz: Spatial Reuse field for the second 20 MHz sub-band. When operating in 20 MHz, this field is set to same value as Spatial Reuse 1 field. When operating 40 MHz in 2.4 GHz band, this field is set to same value as Spatial Reuse 1 field. If the Bandwidth field indicates 160/80+80 MHz: Spatial Reuse field for second 40 MHz sub-band of the 160 MHz operating band.
Indicates whether or not spatial reuse is allowed in a sub-band of the PPDU during the transmission of this PPDU, and if allowed, indicates a value that is used to determine a limit on the transmit power of a spatial reuse transmission.
If the Bandwidth field indicates 20 MHz, 40 MHz, or 80 MHz: Spatial Reuse field for the third 20 MHz sub-band. When operating in 20 MHz or 40 MHz, this field is set to same value as Spatial Reuse 1 field.If the Bandwidth field indicates 160/80+80 MHz: Spatial Reuse field for third 40 MHz sub-band of the 160 MHz operating band. When operating in 80+80 MHz, this field is set to same value as Spatial Reuse 1 field.
Indicates whether or not spatial reuse is allowed in a sub-band of the PPDU during the transmission of this PPDU, and if allowed, indicates a value that is used to determine a limit on the transmit power of a spatial reuse transmission.
If the Bandwidth field indicates 20 MHz, 40 MHz, or 80 MHz: Spatial Reuse field for the fourth 20 MHz sub-band. When operating in 20 MHz , this field is set to same value as Spatial Reuse 1 field. When operating in 40 MHz , this field is set to same value as Spatial Reuse 2 field. If the Bandwidth field indicates 160/80+80 MHz: Spatial Reuse field for fourth 40 MHz sub-band of the 160 MHz operating band. When operating in 80+80 MHz, this field is set to same value as Spatial Reuse 2 field.
Get or set the RU allocation signaling for the first 20MHz Band.
For 
40M bandwidth, the following two parameter names are available:
For 80M bandwidth, the following four parameter names are available:
For 160M bandwidth the two parameter name are available:
The band frequency index of current RU configuration.
Resource unit (RU) state.
Select the resource unit (RU) size for current user, which could be 26, 52, 106, 242, 484, 996, or 2*996 sub carriers. Note that the instrument must have at least the equivalent bandwidth to allow the waveform to be successfully transmitted.
Get the number of users for current resource unit.
Displays the Number of Space Time Streams (Nsts,u) of current user. When STBC is OFF, it is equal Nss,u. When STBC is ON, it equals 2 times Nss,u.
Range: -300 to 300 ppm
Default: 0 ppm
Get or set the offset to the standard symbol rate in ppm. This error will be added to standard sample clock in the waveform header.
Range: -90 to 90 degrees
Set the baseband quadrature angle adjustment for Waveform 1 before channel fading and mirror spectrum.
The number of parameter groups depends on Number of Transmit Chains (Ntx). Each group is identified with an incremented waveform number, such as Waveform 1, Waveform 2, and so on.
Range: -10 to 10 dB
Set the baseband IQ gain balance for Waveform 1 before channel fading and mirror spectrum.
The number of parameter groups depends on Number of Transmit Chains (Ntx). Each group is identified with an incremented waveform number, such as Waveform 1, Waveform 2, and so on.
