Open topic with navigation

WLAN

802.11ax Carrier Settings: HE Trigger Based PPDU

These carrier settings are applicable when you select:

• 802.11ax as the PHY Specification

• and HE Trigger Based PPDU as the Generation Mode

General

Space Time Block Coding

LTF Symbol Interval Mode

Masked HE-LTF Mode

Number of HE-LTFs (Nheltf)

Maximum Number of Total Space Time Streams (Nsts,total)

Number of Transmit Chains (Ntx)

LDPC Extra Symbol

PE Disambiguity

L-SIG Length

User Schedule Mode

Pre-FEC Padding Factor

Maximum Packet Extension Duration

Doppler Indication

Midamble Periodicity

RU Arrangement

the 1st Band Allocation Index

the 2nd Band Allocation Index

the 3rd Band Allocation Index

the 4th Band Allocation Index

the 5th Band Allocation Index

the 6th Band Allocation Index

the 7th Band Allocation Index

the 8th Band Allocation Index

HE-SIG-A

Link

BSS Color

TXOP Duration

Spatial Reuse 1

Spatial Reuse 2

Spatial Reuse 3

Spatial Reuse 4

Impairments

Symbol Clock Offset

Quadrature Angle Adjustment for Waveform 1

I/Q Gain Balance for Waveform 1

Quadrature Angle Adjustment for Waveform 2

I/Q Gain Balance for Waveform 2

Symbol Clock Offset

I/Q Gain Balance for Waveform 3

Quadrature Angle Adjustment for Waveform 4

I/Q Gain Balance for Waveform 4

Quadrature Angle Adjustment for Waveform 5

I/Q Gain Balance for Waveform 5

Symbol Clock Offset

I/Q Gain Balance for Waveform 6

Quadrature Angle Adjustment for Waveform 7

I/Q Gain Balance for Waveform 7

Quadrature Angle Adjustment for Waveform 8

I/Q Gain Balance for Waveform 8

RU 1 (Band 1)

Resource Unit

RU Index

Symbol Clock Offset

RU Size

Band

Number of Total Space Time Streams (Nsts,total)

Spatial Configuration

User Number

Spatial Mapping

Spatial Mapping Matrix

User Setup

User Configuration

User Index

Scrambler

Channel Coding Mode

Channel Coding State

BCC Interleaver

Number of Spatial Streams (Nss,u)

LDPC Tone Mapper

Number of Space Time Streams (Nsts,u)

Scrambler Initialization

Dual Carrier Modulation

STA ID

Modulation and Coding

MCS Index

Modulation

Data Rate

Coding Rate

Transmit Data

Aggregated MPDU

MAC Padding Mode

Minimum MPDU Start Spacing

Minimum MPDU Start Spacing in octets

AMPDU Length

PSDU Length

Impairments

Relative Power

Frequency Offset

Initial Phase

Timing Offset

Symbol Clock Offset

MPDU

MPDU Index

MPDU Length

A-MPDU Subframe Length

PN9 Seed

PN15 Seed

Data Type

User File

User File Length

Data Length

MAC FCS

AddMpdu

DeleteMpdu

CopyMpdu

Mac Header

Enable

Mac Header Type

Length

Frame Control Enable

Frame Control Size

Frame Control Contents

Duration Id Enable

Duration Id Size

Duration Id Contents

Address 1 Enable

Address 1 Size

Address 1 Contents

Address 2 Enable

Address 2 Size

Address 2 Contents

Address 3 Enable

Address 3 Size

Address 3 Contents

Address 4 Enable

Address 4 Size

Address 4 Contents

Seq Control Enable

Seq Control Size

Seq Control Contents

Qos Control Enable

Qos Control Size

Qos Control Contents

Ht Control Enable

Ht Control Size

Ht Control Contents

Payload

MPDU Index

MPDU Length

PN9 Seed

PN15 Seed

Data Type

User File

User File Length

Data Length

MAC FCS

Mac Header

Enable

Mac Header Type

Length

Frame Control Enable

Frame Control Size

Frame Control Contents

Duration Id Enable

Duration Id Size

Duration Id Contents

Address 1 Enable

Address 1 Size

Address 1 Contents

Address 2 Enable

Address 2 Size

Address 2 Contents

Address 3 Enable

Address 3 Size

Address 3 Contents

Address 4 Enable

Address 4 Size

Address 4 Contents

Seq Control Enable

Seq Control Size

Seq Control Contents

Qos Control Enable

Qos Control Size

Qos Control Contents

Ht Control Enable

Ht Control Size

Ht Control Contents

General

Space Time Block Coding

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.

LTF Symbol Interval Mode

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.

Masked HE-LTF Mode

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

Number of HE-LTFs (Nheltf)

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.

Maximum Number of Total Space Time Streams (Nsts,total)

This is information indicating the total number of space time streams , which is equal to the sum of the Nsts for each user.

Number of Transmit Chains (Ntx)

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.

LDPC Extra Symbol

Indicates the presence of the extra OFDM symbol for LDPC.

PE Disambiguity

Gets or sets the PE disambiguation bit.

L-SIG Length

Sets the value of the L-SIG length field of the HE trigger-based PPDU that is the response to the trigger frame.

User Schedule Mode

Enable/disable User shedule mode. If enabled, the L-SIG Length, LDPC Extra Symbol, PE Disambiguity, and Pre-FEC Padding Factor parameters become editable.

Pre-FEC Padding Factor

Get or Set Pre-FEC Padding Factor.

Maximum Packet Extension Duration

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.

Doppler Indication

Indicate a PPDU with enhanced immunity to Doppler.

Midamble Periodicity

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.

RU Arrangement

Get or set the RU allocation signaling for the applicable Bands.

Based on the set bandwidth, the following parameter names are available:

the 1st Band Allocation Index

the 2nd Band Allocation Index

the 3rd Band Allocation Index

the 4th Band Allocation Index

the 5th Band Allocation Index

the 6th Band Allocation Index

the 7th Band Allocation Index

the 8th Band Allocation Index

HE-SIG-A

Link

Indicates whether the frame is Uplink or Downlink. The field is set to DL for TDLS and set to UL for HE TB PPDU.

BSS Color

Get or Set the Base station identifier.The BSS Color field is an identifier of the BSS.

TXOP Duration

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.

Spatial Reuse 1

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.

Spatial Reuse 2

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.

Spatial Reuse 3

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.

Spatial Reuse 4

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.

Impairments

Symbol Clock Offset

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.

Quadrature Angle Adjustment for Waveform 1

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.

I/Q Gain Balance for Waveform 1

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.

Quadrature Angle Adjustment for Waveform 2

Set the baseband quadrature angle adjustment for Waveform 2 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.

I/Q Gain Balance for Waveform 2

Set the baseband IQ gain balance for Waveform 2 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.

Quadrature Angle Adjustment for Waveform 3

Set the baseband quadrature angle adjustment for Waveform 3 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.

I/Q Gain Balance for Waveform 3

Set the baseband IQ gain balance for Waveform 3 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.

Quadrature Angle Adjustment for Waveform 4

Set the baseband quadrature angle adjustment for Waveform 4 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.

I/Q Gain Balance for Waveform 4

Set the baseband IQ gain balance for Waveform 4 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.

Quadrature Angle Adjustment for Waveform 5

Set the baseband quadrature angle adjustment for Waveform 5 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.

I/Q Gain Balance for Waveform 5

Set the baseband IQ gain balance for Waveform 5 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.

Quadrature Angle Adjustment for Waveform 6

Set the baseband quadrature angle adjustment for Waveform 6 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.

I/Q Gain Balance for Waveform 6

Set the baseband IQ gain balance for Waveform 6 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.

Quadrature Angle Adjustment for Waveform 7

Set the baseband quadrature angle adjustment for Waveform 7 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.

I/Q Gain Balance for Waveform 7

Set the baseband IQ gain balance for Waveform 7 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.

Quadrature Angle Adjustment for Waveform 8

Set the baseband quadrature angle adjustment for Waveform 8 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.

I/Q Gain Balance for Waveform 8

Set the baseband IQ gain balance for Waveform 8 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.

RU 1 (Band 1)

Resource Unit

RU Index

The index for each resource unit.

RU State

Enable/disable the Resource Unit.

RU Size

Select the RU size for current user, which could be 26 sub carrier, 52 sub carrier,106 sub carrier,242 sub carrier,484 sub carrier,996 sub carrier,2*996 sub carrier.

Band

The band frequency index of current RU configuration.

Number of Total Space Time Streams (Nsts,total)

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.

Spatial Configuration

A user field for an MU-MIMO allocation includes a Spatial Configuration sub-field consisting of 4 bits that indicates the number of spatial streams for each STA and the total number of spatial streams in the MU-MIMO allocation.

User Number

Get the number of users for current resource unit.

Spatial Mapping

Spatial Mapping Matrix

Set the contents of the spatial mapping matrix.

User Setup

User Configuration

User Index

Displays the index for each user.

Scrambler

Enable or disable the Scrambler. Scrambles the data to reduce the probability of long sequences of zeros and ones.

Channel Coding Mode

Select the Channel Coding mode that encodes the data to enable error correction.

Channel Coding State

Enable or disable the channel encoding function. When it's Off, BCC encoder or LDPC encoder will be bypassed.

BCC Interleaver

Enable or disable the interleaver. BCC Interleaver interleaves the bits of each spatial stream (changes order of bits) to prevent long sequences of adjacent noisy bits from entering the BCC decoder. Interleaving is applied only when BCC encoding is used.

It’s only visible when the Channel Coding Mode is BCC.

Number of Spatial Streams (Nss,u)

Set the number of Spatial Streams used by the current user. Its maximum value is 8 for Single User and 4 for Multi User.

The maximum value of this setting depends on the Transmission Mode and STBC as listed in the following table.

LDPC Tone Mapper

Enable or disable the LDPC Tone Mapper function. When it is Off, LDPC encoder will be bypassed.

It is only visible when the Channel Coding Mode is LDPC.

Number of Space Time Streams (Nsts,u)

Displays the number of Space Time Streams for the current user.

When STBC is OFF, it is equal to the Number of Spatial Streams (Nss,u). When STBC is ON, it is equal to two times the Number of Spatial Streams. Its initial value is equal to the Number of Transmit Chains so that the initial Spatial Mapping Scheme can be Direct Mapping.

Scrambler Initialization

Set the initial state of the scrambler in decimal format, which is then turned into 7 bits to feed into the scrambler.

Dual Carrier Modulation

Enable/disable Dual Carrier modulation for payload of current User. In an HE MU PPDU, DCM can be applied only to RUs containing data for 1 user.DCM is only applied to MCS0, MCS 1, MCS 3 and MCS 4. DCM is not applied with MU-MIMO or with STBC. DCM is applied only with 1 or 2 spatial streams. DCM is only applied to Single user RUs in HE MU PPDU.

STA ID

Modulation and Coding

MCS Index

Select the MCS Index. Please note that some MCS Index are defined as invalid by the standard. They are not selectable.The HE extended range SU PPDU can only be transmitted with MCS0, MCS1, MCS2 .

Modulation

Displays the modulation format defined for the selected MCS (Modulation and Coding Scheme) Index value.

Data Rate

Displays the data rate determined by MCS index.

Coding Rate

Displays the coding rate determined by MCS index.

Transmit Data

Aggregated MPDU

Enable or disable the MPDU aggregation. When it’s off, a single MPDU will be used as the payload.

MAC Padding Mode

Enable or disable the MAC Layer Padding mode.

Minimum MPDU Start Spacing

Select the minimum time between the start of adjacent MPDUs within an A-MPDU.

Minimum MPDU Start Spacing in octets

Displays the minimum octets between the start of adjacent MPDUs. Its value should be equal or greater than Minimum MPDU Start Spacing X Data Rate / 8.

AMPDU Length

Displays the number of octets in the AMPDU pre-EOF padding carried in the PSDU of the current user. It's the LENGTH defined in the standard and is equal to the sum of A-MPDU Subframe Length in all the MPDUs.

PSDU Length

Impairments

Relative Power

Gets or sets the power of the Uplink Users relative to others.

Frequency Offset

Gets or sets the frequency offset reference to the User carrier.

Initial Phase

Set the initial phase of the carrier.

Timing Offset

Set the timing offset of the carrier. Timing offset values increment by 50ns.

Symbol Clock Offset

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: -300 - 300 ppm.

MPDU

If Aggregated MPDU is set to true, this tab is visible.

MPDU Index

Displays the index for each MPDU. This cell cannot be edited.

MPDU Length

Displays the number of octets in current MPDU, which is comprised of MSDU, MAC Header and MAC FCS.

A-MPDU Subframe Length

Displays the number of octets in the current A-MPDU subframe, which is composed of MPDU and Padded MPDU Delimiters.

If the current MPDU is not the last one, its length can not be shorter than Minimum MPDU Start Spacing, otherwise MDPU delimiters will be padded after the current MPDU. If the current MPDU is the last one, its A-MPDU Subframe Length is equal to its MPDU Length plus the length of one MPDU Delimiter (4 octets).

PN9 Seed

Specify a seed in decimal format to generate a PN9 data sequence. The LSB of the seed comes out first. For example, if you enter a seed value of 10 (1010 in binary), the first 9 bits of the PN9 sequence are 0 1 0 1 0 0 0 0 0, with an increasing index from left to right. For more information, see PN Sequence Generation.

PN15 Seed

Specify a seed in decimal format to generate a PN15 data sequence. The LSB of the seed comes out first. For example, if you enter a seed value of 10 (1010 in binary), the first 15 bits of the PN15 sequence are 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0, with an increasing index from left to right. For more information, see PN Sequence Generation.

Data Type

Use this cell to select the payload data source. The user data of the frame can contain the following data:

• All 0s

• PN9

• PN15

• User file

The user file must be in binary form. The least significant bit (LSB) of the first byte in the user data file will be the first bit of the user payload; the LSB of the second byte in the user file will be the ninth bit of the user payload, and so on. If User file is selected as the Data Type, the value displayed in the Data Length field will be equal to the length of the user's data file, up to the maximum data length.

User File

Click the > button in this cell to select a user file as the data source.

The user file must be in binary form. The least significant bit (LSB) of the first byte in the user data file will be the first bit of the user payload; the LSB of the second byte in the user file will be the ninth bit of the user payload, and so on. If User file is selected as the Data Type, the value displayed in the Data Length field will be equal to the length of the user's data file, up to the maximum data length.

User File Length

This cell displays the number of data bytes in the user file when it is selected as the payload data source.

Data Length

Use this cell to set the number of data bytes in a frame. The value is limited by MPDU Length.

MAC FCS

Use this cell to enable or disable appending the MAC FCS to the data payload. The FCS is automatically calculated by the software if this cell is enabled. Note: When the MAC header is not selected, then the FCS is applied to just the payload.

This cell is adjustable only for the Advanced Capability. In the Basic Capability, it is automatically set to OFF.

AddMpdu

Add a new MPDU. The maximum number of user is 63.

DeleteMpdu

Delete the selected MPDU. The minimum number of MPDU is 1.

CopyMpdu

Add a new MPDU, and its configuration is copied from the selected MPDU.

Mac Header

Click the > button in this cell to open the MAC Header Dialog (see the dialogs below), which enables or disables pre-pending the MAC header to the data payload. You can select General, RTS, CTS, or ACK format by clicking the down arrow in the top right corner of the Mac Header Dialog. You can set the desired data in each of the individual fields for each format. You can also disable these fields if the data is no longer desired by clearing the Mac Header (hex) checkbox.

Enable

Mac Header Type

Length

Frame Control Enable

Frame Control Size

Frame Control Contents

Duration Id Enable

Duration Id Size

Duration Id Contents

Address 1 Enable

Address 1 Size

Address 1 Contents

Address 2 Enable

Address 2 Size

Address 2 Contents

Address 3 Enable

Address 3 Size

Address 3 Contents

Address 4 Enable

Address 4 Size

Address 4 Contents

Seq Control Enable

Seq Control Size

Seq Control Contents

Qos Control Enable

Qos Control Size

Qos Control Contents

Ht Control Enable

Ht Control Size

Ht Control Contents

Payload

If Aggregated MPDU is set to false, this tab is visible.

MPDU Index

Displays the index for each MPDU. This cell cannot be edited.

MPDU Length

Displays the number of octets in current MPDU, which is comprised of MSDU, MAC Header and MAC FCS.

PN9 Seed

Specify a seed in decimal format to generate a PN9 data sequence. The LSB of the seed comes out first. For example, if you enter a seed value of 10 (1010 in binary), the first 9 bits of the PN9 sequence are 0 1 0 1 0 0 0 0 0, with an increasing index from left to right. For more information, see PN Sequence Generation.

PN15 Seed

Specify a seed in decimal format to generate a PN15 data sequence. The LSB of the seed comes out first. For example, if you enter a seed value of 10 (1010 in binary), the first 15 bits of the PN15 sequence are 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0, with an increasing index from left to right. For more information, see PN Sequence Generation.

Data Type

Use this cell to select the payload data source. The user data of the frame can contain the following data:

• All 0s

• PN9

• PN15

• User file

The user file must be in binary form. The least significant bit (LSB) of the first byte in the user data file will be the first bit of the user payload; the LSB of the second byte in the user file will be the ninth bit of the user payload, and so on. If User file is selected as the Data Type, the value displayed in the Data Length field will be equal to the length of the user's data file, up to the maximum data length.

User File

Click the > button in this cell to select a user file as the data source.

The user file must be in binary form. The least significant bit (LSB) of the first byte in the user data file will be the first bit of the user payload; the LSB of the second byte in the user file will be the ninth bit of the user payload, and so on. If User file is selected as the Data Type, the value displayed in the Data Length field will be equal to the length of the user's data file, up to the maximum data length.

User File Length

This cell displays the number of data bytes in the user file when it is selected as the payload data source.

Data Length

Use this cell to set the number of data bytes in a frame. The value is limited by MPDU Length.

MAC FCS

Use this cell to enable or disable appending the MAC FCS to the data payload. The FCS is automatically calculated by the software if this cell is enabled. Note: When the MAC header is not selected, then the FCS is applied to just the payload.

This cell is adjustable only for the Advanced Capability. In the Basic Capability, it is automatically set to OFF.

Mac Header

Click the > button in this cell to open the MAC Header Dialog (see the dialogs below), which enables or disables pre-pending the MAC header to the data payload. You can select General, RTS, CTS, or ACK format by clicking the down arrow in the top right corner of the Mac Header Dialog. You can set the desired data in each of the individual fields for each format. You can also disable these fields if the data is no longer desired by clearing the Mac Header (hex) checkbox.

Enable

Mac Header Type

Length

Frame Control Enable

Frame Control Size

Frame Control Contents

Duration Id Enable

Duration Id Size

Duration Id Contents

Address 1 Enable

Address 1 Size

Address 1 Contents

Address 2 Enable

Address 2 Size

Address 2 Contents

Address 3 Enable

Address 3 Size

Address 3 Contents

Address 4 Enable

Address 4 Size

Address 4 Contents

Seq Control Enable

Seq Control Size

Seq Control Contents

Qos Control Enable

Qos Control Size

Qos Control Contents

Ht Control Enable

Ht Control Size

Ht Control Contents